LUCENT TECHNOLOGIES, INC. Patent applications |
Patent application number | Title | Published |
20150236769 | CLOSED-LOOP MULTIPLE-INPUT-MULTIPLE-OUTPUT SCHEME FOR WIRELESS COMMUNICATION BASED ON HIERARCHICAL FEEDBACK - The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s). | 08-20-2015 |
20150111501 | METHOD OF MANAGING INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - The present invention provides methods of managing interference in a wireless communication system. The methods may include receiving information indicative of a portion of an interfering signal received by a first wireless communication device, decoding the portion of the interfering signal, and providing at least one back-off instruction destined for a second wireless communication device based on the decoded portion of the interfering signal. | 04-23-2015 |
20140064217 | METHOD FOR PROVIDING IMS SUPPORT FOR ENTERPRISE PBX USERS - An architecture and procedures by which an NGN can provide the following capabilities to an NGCN user: basic terminating service in the peering model; enhanced terminating services in the peering model; enhanced originating services in the peering model; and roaming service in the subscription and peering models. All capabilities are provided in an easily scalable manner via provisioned subscriber data and small modifications to existing IMS procedures. In one embodiment, an NGN is configured among the external networks to receive all SIP requests intended for the NGCN users of an NGCN interconnected to the NGN via the peering model (this NGN is the trunking home NGN), and the NGN forwards these requests to the NGCN for handling using request retargeting. | 03-06-2014 |
20130322338 | METHODS OF REVERSE LINK POWER CONTROL - Methods of reverse link power control are provided. A first example method includes first adjusting OFDMA transmission power based on first feedback signals during an OFDMA transmission and second adjusting OFDMA transmission power based on second feedback signals during periods between OFDMA transmissions. A second example method includes sending first power adjustment indicators based on measured OFDMA SINRs when receiving OFDMA transmissions from a mobile station and sending second power adjustment indicators based on estimated OFDMA SINRs when not receiving OFDMA transmissions from the mobile station. A third example method includes receiving a plurality of interference indicating signals from different base stations and determining whether to adjust a maximum transmit power threshold based on the plurality of interference indicating signals, the maximum transmit power threshold indicating the maximum permitted transmission power level below which transmissions are constrained. | 12-05-2013 |
20130308179 | NONLINEAR AND GAIN OPTICAL DEVICES FORMED IN METAL GRATINGS - In one aspect, an optical gain device is provided. The optical gain device comprises a metallic film and an optical gain medium. The metallic film has a plurality of slits therethrough. The plurality of slits are configured such that the film selectively and resonantly transmits light over a preselected frequency range. The optical gain medium is situated within or substantially near at least one slit of the plurality of slits. | 11-21-2013 |
20130202582 | AGENT DELIVERY SYSTEM CAPABLE OF SELECTIVELY RELEASING AN AGENT - The present invention provides a composition for selectively delivering an active agent to a portion of an organism. The composition comprises first and second polymer portions, having first and second functional groups attached as a side-chain thereto, respectively. The first and second functional groups form cross-links between the first and second polymer portions. The cross-links are capable of being broken by a substance of the organism, thereby resulting in release of the active agent. The composition provides a novel means for controlling the selective release of the active agent in the organism. | 08-08-2013 |
20130104362 | CONTINUOUS FLOW MICRO-CRUSHER | 05-02-2013 |
20130058383 | CLOSED-LOOP MULTIPLE-INPUT-MULTIPLE-OUTPUT SCHEME FOR WIRELESS COMMUNICATION BASED ON HIERARCHICAL FEEDBACK - The present invention provides methods implemented in a base station having a plurality of antennas and one or more user terminals. One embodiment of the method includes receiving feedback from at least one user in response to transmitting a first frame to said at least one user. The first frame is formed by pre-coding at least one symbol using at least one first code word selected from at least one first code book associated with the at least one user. The method also includes transmitting at least one second frame to the user(s). The second frame(s) are pre-coded using at least one second codeword selected from at least one second codebook. The second codebook(s) determined based on the feedback and the first codeword(s). | 03-07-2013 |
20120176424 | Color Mixing Light Source and Color Control Data System - Apparatus including a color mixing light source having a first laser configured to lase at one or a plurality of light emission wavelengths of 459 nanometers or less and a second laser configured to lase at one or a plurality of light emission wavelengths of 470 nanometers or more; and a controller having a color control data input and a color control data output configured to cause the color mixing light source to generate a perceptual mixture of light having a perceptual color, the perceptual mixture including light emissions from the first and second light sources. System configured to map first color control data to second color control data. Method of forming a perceptual mixture of light having a perceptual color. Method of converting color control data. | 07-12-2012 |
20120174274 | ENHANCEMENT OF ARMOR - An apparatus comprising a multi-layered armor. The multi-layered armor includes a stack of layers, each layer including a mesh of fibers of first polymer molecules, surfaces of the fibers being functionalized by at least one of hydroxyl, ketone, and amine groups. The multilayered armor also includes second polymer molecules being hydrogen bonded to the fiber surfaces, some of the second polymer molecules having hydroxyl, ketone, amine or carboxylic acid groups. The multilayered armor further includes a composition of third polymer molecules molded over the stack. | 07-12-2012 |
20120122300 | FILM STRESS MANAGEMENT FOR MEMS THROUGH SELECTIVE RELAXATION - An apparatus comprising a microelectromechanical system. The microelectromechanical system includes a crystalline structural element having dislocations therein. For at least about 60 percent of adjacent pairs of the dislocations, direction vectors of the dislocations form acute angles of less than about 45 degrees. | 05-17-2012 |
20120107176 | Detection Apparatus for Biological Materials and Methods of Making and Using the Same - Apparatus comprising surface site comprising substantially inorganic surface having chemical composition selected from group consisting of metals, semiconductors, insulators, and mixtures thereof, the surface positioned within polypeptide bonding region and having selective bonding affinity for polypeptide; plurality of interlayers between which surface site is interposed; distal site end on surface site and distanced from interlayers, the surface being provided on distal site end; surface site and interlayers being interposed between first and second supports; first and second conductors provided on first and second supports and having respective first and second distal conductor ends positioned within polypeptide bonding region; conductors being capable of applying external voltage potential across polypeptide bonding region. Apparatus, optionally comprising such first and second supports and conductors; and comprising third conductor in electrical communication with surface site, the third conductor positioned for electrical communication with source of an external bias voltage. Techniques for making apparatus. | 05-03-2012 |
20120088308 | Detection Apparatus for Biological Materials and Methods of Making and Using the Same - Method that includes providing plurality of test sites each having first and second layers respectively including inorganic first and second surface sites forming parts of interior of a well, the surface sites having positions and thicknesses being configured for locating thereon portion of unidentified amino acid-containing molecules; exposing each of a first plurality of the test sites to a fluid containing a different one of plurality of pre-identified amino acid-containing molecules and determining bonding signatures onto each of first plurality of test sites; exposing each of second plurality of test sites to another fluid containing unidentified amino acid-containing molecule and determining bonding signatures onto second plurality of test sites; and comparing bonding signatures to determine or exclude identity of unidentified amino acid-containing molecule. | 04-12-2012 |
20120075598 | PROJECTING AN IMAGE USING A MOVING ILLUMINATION BEAM - According to one embodiment, an image projector has a spatial light modulator (SLM) adapted to modulate illumination from a laser with a spatial pattern such that the modulated illumination projects an image on a viewing screen. The image projector further has an optical diffuser located on an optical path between the laser and the SLM. The laser is adapted to illuminate the SLM through the optical diffuser to create an illuminated area at the SLM. The optical diffuser is adapted to introduce an angular spread into the light transmitted therethrough. The image projector is adapted to move the illuminated area with respect to the SLM to mitigate speckle in the projected image. | 03-29-2012 |
20120038010 | FILM STRESS MANAGEMENT FOR MEMS THROUGH SELECTIVE RELAXATION - An apparatus comprising a microelectromechanical system. The microelectromechanical system includes a crystalline structural element having dislocations therein. For at least about 60 percent of adjacent pairs of the dislocations, direction vectors of the dislocations form acute angles of less than about 45 degrees. | 02-16-2012 |
20120000848 | Fluid-Permeable Body Having a Superhydrophobic Surface - Apparatus including a rigid fluid-permeable body, having a first non-planar fluid-permeable body surface, and having a second fluid-permeable body surface; a plurality of fluid-permeable cells in the fluid-permeable body; and a plurality of raised micro-scale features on the first fluid-permeable body surface. Apparatus including a fluid-permeable body having first and second fluid-permeable body surfaces; a plurality of fluid-permeable cells in the fluid-permeable body; a plurality of raised micro-scale features on the first fluid-permeable body surface; and a fluid containment body forming, together with the second fluid-permeable body surface, a second fluid containment structure. Methods, utilizing an apparatus, of treating a liquid with a fluid, and of maintaining a superhydrophobic surface. | 01-05-2012 |
20110295029 | NANOPARTICLE DISPERSIONS WITH LOW AGGREGATION LEVELS - A composition includes an inorganic particle core and an initiator molecule chemically bonded thereto. The particle core is formed of a material having a dielectric constant of about fifteen or more. The initiator molecule includes a chain having about twenty or fewer carbon atoms and a phosphorous atom chemically bonded to an end of the chain. An alkyl derivative of an aryl moiety terminates another end of the chain. | 12-01-2011 |
20110294296 | Using edges of self-assembled monolayers to form narrow features - The present invention provides a method for manufacturing a structure over a semiconductor substrate. To form a trench, a patterned layer is formed on a portion of a substrate such that the patterned layer forms a target area located adjacent an edge of the patterned layer. A self-assembled monolayer (SAM) is coupled to the substrate up to the patterned layer, but excluded from the patterned layer. The substrate is then removed within the target area. A wire is formed in a similar fashion except that the first SAM is exchanged with a second SAM in the target area. Then either the substrate outside of the target area is removed, or conductive metal crystals are grown within the target area. Such structures may be advantageously used in the manufacture of a number of active or passive electronic devices, such as a field effect transistor. | 12-01-2011 |
20110244189 | SUPER-PHOBIC SURFACE STRUCTURES - Superlyophobic Surface Structure, including a substrate having a surface; a plurality of nanoscale raised features on the substrate surface, each nanoscale raised feature having a length measured in a direction approximately perpendicular to the substrate surface, each nanoscale raised feature having a raised feature diameter along the length and measured in a direction approximately parallel to the substrate surface; a nanoscale top feature on each of a plurality of the nanoscale raised features, each nanoscale top feature having a top feature diameter measured in a direction approximately parallel to the substrate surface; in which an average top feature diameter is greater than an average raised feature diameter. Method of fabricating a Superlyophobic Surface Structure. | 10-06-2011 |
20110123401 | Detection Apparatus for Biological Materials and Methods of Making and Using the Same - Apparatus comprising a surface site comprising a substantially inorganic surface having a chemical composition selected from the group consisting of metals, semiconductors, insulators, and mixtures thereof, the surface positioned within a polypeptide bonding region and having a selective bonding affinity for a polypeptide; a plurality of interlayers between which the surface site is interposed; a distal site end on the surface site and distanced from the interlayers, the surface being provided on the distal site end; the surface site and the interlayers being interposed between first and second supports; first and second conductors provided on the first and second supports and having respective first and second distal conductor ends positioned within the polypeptide bonding region; the conductors being capable of applying an external voltage potential across the polypeptide bonding region. Apparatus, optionally comprising such first and second supports and conductors; and comprising a third conductor in electrical communication with the surface site, the third conductor positioned for electrical communication with a source of an external bias voltage. Techniques for making apparatus. | 05-26-2011 |
20110086766 | Chemical and Biological Detection Arrays - Device comprising: a first substrate; a plurality of first raised elements on the first substrate, the first raised elements mutually spaced apart by first channel regions on the first substrate, each of the first raised elements having a first distal end, the first distal ends forming a first array; hydrophobic molecules on the first raised elements; and primary reactive molecules on the first raised elements for generating hydrophilic reaction products. Techniques for utilizing the device. | 04-14-2011 |
20110033972 | PROGRAMMABLE POLYELECTROLYTE ELECTRICAL SWITCHES - An apparatus includes a first solid electrode on a substrate, a polyelectrolyte layer over a part of the first solid electrode, a second solid electrode on a portion of the polyelectrolyte layer, and an anchoring layer on the part of the first solid electrode. The polyelectrolyte layer is either chemically bonded to the anchoring layer or has a thickness of less than about 20 nanometers. | 02-10-2011 |
20100330737 | METHOD OF DOPING ORGANIC SEMICONDUCTORS - A method includes the steps of forming a contiguous semiconducting region and heating the region. The semiconducting region includes polyaromatic molecules. The heating raises the semiconducting region to a temperature above room temperature. The heating is performed in the presence of a dopant gas and the absence of light to form a doped organic semiconducting region. | 12-30-2010 |
20100304516 | LIGHT-EMITTING CRYSTAL STRUCTURES - A method of manufacturing an apparatus, comprising forming a light-emitting crystalline structure. Forming the light-emitting crystalline structure includes forming a first barrier region on a substrate, the first barrier region having one or more inclined surfaces relative to a planar surface of the substrate. Forming the light-emitting crystalline structure also includes forming a second barrier region over the first barrier region, to form a junction at the inclined surfaces, wherein the first barrier region comprises one of an n-type or p-type semiconductor crystal, and the second barrier region comprises the other of the n-type or p-type semiconductor crystal. | 12-02-2010 |
20100292402 | COMPOSITIONS THAT REVERSIBLY GEL AND DE-GEL - The present invention provides a composition comprising a first polymer and a second polymer cross-linked by the association of functional groups attached as side chains to the polymers. | 11-18-2010 |
20100247982 | RESERVE CELL-ARRAY NANOSTRUCTURED BATTERY - A battery having an electrode with at least one nanostructured surface is disclosed wherein the nanostructured surface is divided into cells and is disposed in a way such that an electrolyte fluid of the battery is prevented from contacting the portion of electrode associated with each cell. When a voltage is passed over the nanostructured surface associated with a particular cell, the electrolyte fluid is caused to penetrate the nanostructured surface of that cell and to contact the electrode, thus activating the portion of the battery associated with that cell. The current/voltage generated by the battery is controlled by selectively activating only a portion of the cells. Multiple cells can be active simultaneously to produce the desired voltage. The more cells that are active, the higher the current/voltage and the lower the overall life of the battery. The life of the battery can be extended by activating fewer cells simultaneously. | 09-30-2010 |
20100221597 | REVERSIBLY-ACTIVATED NANOSTRUCTURED BATTERY - A battery having a nanostructured battery electrode is disclosed wherein it is possible to reverse the contact of the electrolyte with the battery electrode and, thus, to return a battery to a reserve state after it has been used to generate current. In order to achieve this reversibility, the nanostructures on the battery electrode comprise a plurality of closed cells and the pressure within the enclosed cells is varied. In a first embodiment, the pressure is varied by varying the temperature of a fluid within the cells by, for example, applying a voltage to electrodes disposed within said cells. In a second illustrative embodiment, once the battery has been fully discharged, the battery is recharged and then the electrolyte fluid is expelled from the cells in a way such that it is no longer in contact with the battery electrode. | 09-02-2010 |
20100212528 | SAFETY AND ARMING DEVICE FOR HIGH-G MUNITIONS - A representative embodiment of the invention provides a MEMS-based safety and arming (S&A) device having a shuttle movably connected to a frame by one or more bowed springs. The device has an electrical path adapted to electrically connect the frame and a contact pad. In the initial state, the electrical path has an electrical break. If the inertial force acting upon the shuttle (e.g., during launch) reaches or exceeds a first threshold value, then displacement of the shuttle with respect to the frame causes the electrical break to close. If the inertial force reaches or exceeds a second threshold value greater than the first threshold value, then a latching mechanism employed in the S&A device latches to keep the electrical break irreversibly closed thereafter. | 08-26-2010 |
20100182120 | MEMS DEVICE WITH BI-DIRECTIONAL ELEMENT - The present invention provides a bi-directional microelectromechanical element, a microelectromechanical switch including the bi-directional element, and a method to reduce mechanical creep in the bi-directional element. In one embodiment, the bi-directional microelectromechanical element includes a cold beam having a free end and a first end connected to a cold beam anchor. The cold beam anchor is attached to a substrate. A first beam pair is coupled to the cold beam by a free end tether and is configured to elongate when heated thereby to a greater temperature than a temperature of the cold beam. A second beam pair is located on an opposing side of the cold beam from the first beam pair and is coupled to the first beam pair and the cold beam by the free end tether. The second beam pair is configured to elongate when heated thereby to the greater temperature. | 07-22-2010 |
20100173619 | HEALTHY WEIGHT REMINDER SERVICE VIA WIRELESS NETWORKS - A Healthy Weight Reminder (HWR) service that can be offered to a wireless phone subscriber via a wireless handset and network. With this service, a wireless handset upgraded with HWR software will be able to send a weight check reminder to the subscriber periodically and regularly. The subscriber can set up the reminders by specifying the frequency, such as every two weeks, every month, etc. In addition, the HWR service can also compare the subscriber's current weight with the recommended healthy weight and the weight of the last check. | 07-08-2010 |
20100144086 | SYNTHESIS OF ACENES AND HYDROXY-ACENES - A method comprising reducing an acenequinone to form an acenepolyhydrodiol by exposing the acenequinone to a reducing environment comprising an alkoxyaluminate. | 06-10-2010 |
20100136741 | BRANCHED PHENYLENE-TERMINATED THIOPHENE OLIGOMERS - A composition comprising a plurality of molecules. Each of the molecules has a core comprising at least one aromatic ring and at least three pendant arms chemically bonded to the core. The pendant arms comprise a phenylene-terminated thiophene oligomer. | 06-03-2010 |
20100110264 | Image projection system - System including image projector and video camera. System further includes signal processor configured to be in communication with image projector and video camera, and with a video monitor. Image projector is configured for receiving and projecting first image onto surface of an object. Video camera is configured for capturing second image including first image as projected onto object. System is configured for transmitting second image for display by video monitor. Method that includes providing image projector and video camera. Method further includes providing signal processor configured to be in communication with image projector, video camera, and a video monitor. Method also includes causing image projector to receive and to project first image onto surface of an object, causing video camera to capture second image including first image as projected onto object, and causing system to transmit second image for display by video monitor. | 05-06-2010 |
20100104748 | CLOSED-CELL SURFACES WITH ENHANCED DRAG-REDUCTION PROPERTIES - An apparatus, comprising a plurality of closed cells disposed on a surface of a substrate. Each of the closed cells has at least one dimension that is less than about 1 millimeter and are configured to hold a medium therein. The apparatus also comprises a foam that contacts the closed cells. The foam has fluid walls that include a surfactant, and bubbles of the foam layer are filled with the medium. | 04-29-2010 |
20100103505 | POLARIZATION-INDEPENDENT FOUR-WAVE MIXING IN A BIREFRINGENT FIBER - A two-pump optical parametric device (OPD) having a nonlinear birefringent fiber, in which various four-wave mixing (FWM) processes can occur. The OPD applies, to the nonlinear birefringent fiber, two pump waves, each polarized at about 45 degrees with respect to a birefringence axis of the fiber, and a polarized input signal. A relevant FWM process couples the pump waves and the signal to cause the fiber to generate a desired output signal. In one configuration, the relevant FWM process is inverse modulational interaction, which causes the desired output signal to be generated through amplification or attenuation of the input signal. In another configuration, the relevant FWM process is phase conjugation, which causes the desired output signal to be generated through amplification of the input signal. In yet another configuration, the relevant FWM process is Bragg scattering, which causes the desired output signal to be generated as a corresponding idler signal. | 04-29-2010 |
20100102936 | REMOTELY CONTROLLABLE POWER SWITCH OF AN APPLIANCE AND METHODS OF EMPLOYING THE SAME - A remotely controllable power switch of an appliance and a method of employing a remotely controllable power switch of an appliance to control the overall load that an electric power distribution network bears. The method may include a method of employing a remotely controllable power switch of an appliance to compute the rate that a particular customer pays for electric power. In one embodiment, the remotely controllable power switch of an appliance includes: (1) a switching device coupled between an input and an output of the remotely controllable power switch of an appliance and (2) communication circuitry coupled to the switching device, addressable only by class and configured to receive a turn-off signal and turn off the switching device in response thereto. | 04-29-2010 |
20100100898 | METHOD AND APPARATUS FOR PERSONALIZED MULTI-USER CENTRALIZED CONTROL AND FILTERING OF IPTV CONTENT - A method that allows subscribed content to be available to all users of an account on all devices that are capable of carrying the content. An administrator may tap into the features of the centralized data store to assign personalized usage guidelines and restrictions for all IPTV services available. This includes all devices and users within an administrator's account (including spouse, children, employees. etc.) Thus, an administrator may configure all devices under their control from a convenient centralized location without the need to locally configure each device or user profile. The administrator may enable access controls on the devices in their profiles (or subordinate profiles) from a Web-based system (that is also access controlled). The Web-based system allows the administrator to set content access controls that pertain to any or all devices (such as content blocking˜no “adult” material on any device at any time). The invention also allows the administrator to select filtering based on individual IDs (username, pins) or by device (child's cell phone, playroom DVR unit). The invention allows for content, channel, time, and other types of filtering for each ID or device. | 04-22-2010 |
20100091694 | Method and system of traffic processor selection for broadcast/multicast service in a wireless network - A method and system for selecting traffic processors for processing and transmitting broadcast/multicast service flow in a cellular network includes evaluating processor occupancy of a plurality of traffic processors and selecting the traffic processors with the highest available processor occupancy. The cellular network has one or more base stations that are connected to a radio network controller, the radio network controller having a plurality of traffic processors to process the radio signals and data traffic to be transmitted to the base stations. A required processor occupancy for transmitting the broadcast/multicast service flow to the base stations is estimated and the traffic processors are selected such that their combined available processor occupancy is greater than the required processor occupancy for the broadcast/multicast service flow. The method and system optimizes resource utilization and distribution among the plurality of traffic processors. | 04-15-2010 |
20100086750 | CONDUCTIVE POLYMER METAMATERIALS - An apparatus | 04-08-2010 |
20100080221 | PREDICTIVE MULTICAST CACHE - A method is provided for distributing multicast channels from a multicast/predictive multicast cache located in at least one selected network device of a multicast network. The network device upon receiving a channel request from an end-user transmits the requested channel from the multicast cache if the requested channel is available in the multicast cache. Else, the network device requests the multicast source for the requested channel along with a group of one or more multicast channels centered at the requested channel. The network device transmits only the requested channel and other channels are cached in the multicast cache on the network device. Upon receiving a request for removing a channel the network device caches the channel for a prescribed duration before evicting the channel. | 04-01-2010 |
20100075642 | METHOD FOR PROVIDING IMS SUPPORT FOR ENTERPRISE PBX USERS - An architecture and procedures by which an NGN can provide the following capabilities to an NGCN user: basic terminating service in the peering model; enhanced terminating services in the peering model; enhanced originating services in the peering model; and roaming service in the subscription and peering models. All capabilities are provided in an easily scalable manner via provisioned subscriber data and small modifications to existing IMS procedures. In the first case, an NGN is configured among the external networks to receive all SIP requests intended for the NGCN users of an NGCN interconnected to the NGN via the peering model (this NGN is the trunking home NGN), and the NGN forwards these requests to the NGCN for handling using request retargeting. In the second case, an NGN is configured among the external networks to receive all SIP requests intended for the NGCN users of an NGCN interconnected to the NGN via the peering model, and the NGN applies a set of agreed services using NGN ASs (application servers) to each request before forwarding to the NGCN for handling. In the third case, the NGCN is configured to forward all originating requests to an NGN (the trunking home NGN) via the peering model, and the NGN applies a set of agreed services using NGN ASs to each request before forwarding to the intended recipient. In the fourth case, an NGN is configured among the external networks as the roaming home NGN to receive a SIP REGISTER request from an NGCN user that has roaming capability, and the NGN forwards that request to the NGCN for handling. | 03-25-2010 |
20100074460 | SELF-STEERING DIRECTIONAL HEARING AID AND METHOD OF OPERATION THEREOF - A hearing aid and a method of enhancing sound. In one embodiment, the hearing aid includes: (1) a direction sensor configured to produce data for determining a direction in which attention of a user is directed, (2) microphones to provide output signals indicative of sound received at the user from a plurality of directions, (3) a speaker for converting an electrical signal into enhanced sound and (4) an acoustic processor configured to be coupled to the direction sensor, the microphones, and the speaker, the acoustic processor being configured to superpose the output signals based on the determined direction to yield an enhanced signal based on the received sound, the enhanced signal having a higher content of sound received from the direction than sound received at the user. | 03-25-2010 |
20100073456 | VIDEOCONFERENCING TERMINAL AND METHOD OF OPERATION THEREOF TO MAINTAIN EYE CONTACT - A videoconferencing terminal, a method of videoconferencing and a videoconferencing infrastructure. In one embodiment, the terminal includes: (1) a flat panel display and (2) a camera associated with the flat panel display and configured to receive light from an object through the flat panel display and acquire an image of the object. | 03-25-2010 |
20100073237 | MULTI-POLARIZED ANTENNA ARRAY - In one embodiment, the present invention is a dual-polarized antenna array constructed from first and second instances of a planar antenna that are co-located and orthogonal to one another. The planar antenna comprises three conducting elements and a transmission line. The first conducting element comprises a straight segment and two arms of equal length. The proximal ends of the two arms are attached to opposite ends of the straight segment. The arms extend away from the second and third conducting elements and towards one another. The second and third conducting elements are separated by a gap and together form a mirror image of the first conducting element. The transmission line has first and second conductors that are coupled to the second and third conducting elements, respectively. In another embodiment, the present invention is a tri-polarized antenna array constructed from three orthogonal co-located instances of the planar antenna. | 03-25-2010 |
20100071929 | STRUCTURED DIELECTRIC FOR COAXIAL CABLE - A geometrically-structured coaxial cable may prevent infiltration of water vapor and other contaminants by using a closed cell structure. The cable may be fabricated by wrapping bubble tape around its central conductor. Alternatively, plastic may be extruded through channels to create a plurality of layers. In either case, these layers are staggered in a zig-zag pattern to ensure that no radial spokes connect the inner and outer conductors of the coaxial cable without passing through a plurality of dielectric layers. | 03-25-2010 |
20100070700 | CACHE MANAGEMENT SYSTEM AND METHOD AND CONTENT DISTRIBUTION SYSTEM INCORPORATING THE SAME - A cache management system and method and a content distribution system. In one embodiment, the cache management system includes: (1) a content request receiver configured to receive content requests, (2) a popularity lifetime prediction modeler coupled to the content request receiver and configured to generate popularity lifetime prediction models for content that can be cached based on at least some of the content requests, (3) a database coupled to the popularity lifetime prediction modeler and configured to contain the popularity lifetime prediction models and (4) a popularity lifetime prediction model matcher coupled to the content request receiver and the database and configured to match at least one content request to the popularity lifetime prediction models and control a cache based thereon. | 03-18-2010 |
20100069074 | WIRELESS-RESOURCE BROKER - In one embodiment, a wireless-resource broker employs a self-enforcing spectrum-sharing policy, e.g., the expected utility (e.g., rate) a user obtains by following the policy provided by the broker is not less than the expected utility that the user obtains by switching to some other strategy. Each user is associated with one or more transmitter-receiver pairs, e.g., a transmitter of a wireless device and a receiver of a base station in communication via a wireless channel. The broker receives, as input, user parameters characterizing one or more of the transmitters and/or receivers and resource parameters characterizing one or more available spectrum blocks. The broker solves a linear-programming problem to generate and transmit a recommended policy for one or more users. The policy for each user includes information such as the spectrum block(s) to which the user is assigned, the transmission power for the user, and the transmission rate for the user. | 03-18-2010 |
20100066800 | MONITOR HAVING INTEGRAL CAMERA AND METHOD OF OPERATING THE SAME - As discussed herein, there is presented a visual communication system, a method of conducting two-way visual communication and an apparatus. In one embodiment, the apparatus includes: (1) a lens substrate having a first array of micro lenses on one side thereof, (2) an optical output substrate having a second array of display pixels and (3) an optical input substrate having a third array of image sensors laterally inter-dispersed with respect to display pixels of the first array and positioned to receive light from the micro lenses of the first array. | 03-18-2010 |
20100061865 | SYSTEM AND/OR METHOD FOR MONITORING AND/OR CONTROLLING THE RELATIVE INTERNAL AIR PRESSURE OF A FACILITY - A system is provided for maintaining a balanced interior air pressure in a building ( | 03-11-2010 |
20100060569 | WIRELESS REMOTE CONTROL HAVING MOTION-BASED CONTROL FUNCTIONS AND METHOD OF MANUFACTURE THEREOF - A wireless remote control and a method of manufacturing the same. In one embodiment, the wireless remote control includes: ( | 03-11-2010 |
20100054490 | Audio Noise Cancellation System - System including signal processor in communication with sound detector and with sound-emitting device. Sound detector and sound-emitting device are in audio communication with occupant compartment. Signal processor is configured for receiving input signal from sound detector being indicative of background audio noise in occupant compartment, and for causing sound-emitting device to emit output sound that partially cancels background audio noise in manner responsive to received input signal. Another system, including array of sound detectors and array of sound-emitting devices. Method includes providing signal processor in communication with sound detector and sound-emitting device, where sound detector and sound-emitting device are in communication with occupant compartment. Further in method, signal processor is caused to receive input signal from sound detector being indicative of background audio noise in occupant compartment. Additionally in method, signal processor is induced to cause sound-emitting device to emit output sound that partially cancels background audio noise in manner responsive to received input signal. | 03-04-2010 |
20100050042 | DELIVERY METHOD FOR INTERNET PROTOCOL TELEVISION (IPTV) - A delivery method for IPTV which combines forward error correction (FEC) with retransmission techniques for handling packet loss and/or corruption. Packet loss or corruption of popular channels is handled through the use of FEC while packet loss of less popular channels is handled by retransmission. | 02-25-2010 |
20100046886 | PLANAR POLARIZATION SPLITTER - An apparatus comprising a planar optical structure that includes an input coupler, first and second planar waveguides and an output coupler, all on a planar substrate. The input coupler is configured to divide an incoming light into two input light beams. Each of the first and second waveguides is configured to receive one of the two input light beams. The first waveguide has a first core with a width that is greater than a width of a second core of the second waveguide. At least one of the first or second planar waveguides is birefringent. The output coupler is configured to receive the light beams after passage through the first and second waveguides. A first output light beam from the output coupler is substantially TE polarized light and a second output light beam from the output coupler is substantially TM polarized light. | 02-25-2010 |
20100046527 | Latency Equalization for Interactive Network Applications - A network configuration that supports latency-equalization (LEQ) routing by effectively “storing” packets on communication links, rather than at end points. A suitable network configuration is found by (i) identifying a candidate pool of routers through which the participating client terminals and application servers can exchange packets intended for LEQ routing and (ii) analyzing the delay inventory corresponding to the network paths connecting the client terminals and application servers, through those routers. Based on the analysis, M routers from the candidate pool are selected to serve as hub nodes. Each participating client terminal is assigned m of these M hub nodes and, thereafter, directs and receives its packets intended for LEQ routing through one of these m hub nodes. | 02-25-2010 |
20100042639 | CONFIGURATION FILE FRAMEWORK TO SUPPORT HIGH AVAILABILITY SCHEMA BASED UPON ASYNCHRONOUS CHECKPOINTING - In various exemplary embodiments, a method and related system for configuration file management in a network element comprise one or more of the following: upon initialization of the network element, reading a first configuration file that is in a character-encoded format; for each application process, translating the first configuration file into a plurality of non-character-encoded configuration files; configuring each application process based on the respective plurality of non-character-encoded configuration files; modifying, in real-time, at least one of the non-character-encoded configuration files; and merging each of the non-character-encoded configuration files into a second configuration file that is in a character-encoded format. | 02-18-2010 |
20100040067 | HASH FUNCTIONS FOR APPLICATIONS SUCH AS NETWORK ADDRESS LOOKUP - In one embodiment, IP lookup into a routing table having prefixes of different prefix lengths is performed by hashing a candidate prefix value to generate a plurality of hash values, where m seed hash values are generated by applying m seed hash functions and one or more additional hash values are generated by combining two or more of the seed hash values in different ways, e.g., using a bit-wise XOR function. The hash values are used to perform membership probes into a Bloom filter programmed with the prefixes corresponding to all of the different prefix lengths in the routing table without having to expand any of the prefixes programmed into the Bloom filter. | 02-18-2010 |
20100040066 | NETWORK ADDRESS LOOKUP BASED ON BLOOM FILTERS - In one embodiment, IP lookup into a routing table having prefixes of different prefix lengths is performed using a Bloom filter that was programmed with the prefixes corresponding to all of the different prefix lengths without having to expand any of the prefixes programmed into the Bloom filter. Membership probes are performed into the Bloom filter using candidate prefix values of a given network address. The Bloom filter can be implemented in a distributed manner using Bloom sub-filters, where each Bloom sub-filter is hashed based on a set of hash functions, where each different hash function in the set corresponds to a different prefix length in the routing table. Each Bloom sub-filter can in turn be implemented using a plurality of practically realizable multi-port memory devices controlled by a port scheduler. False-positive matches can be detected and next-hop information for true-positive matches retrieved using an off-chip, hash-based prefix table. | 02-18-2010 |
20100034541 | PMDC FEEDBACK SIGNAL FOR ALTERNATE POLARIZATION DPSK SYSTEM - A feedback signal indicative of the average RF power of an APol-DPSK optical signal is used by a PMD compensator to adjust the amount of compensation applied to the optical signal. | 02-11-2010 |
20100027939 | OPTICAL APPARATUS - An optical apparatus including a 360-degree star coupler with derivative structure(s) and applications to optical imaging, optical communications and optical spectroscopy. | 02-04-2010 |
20100026290 | MICROELECTROMECHANICAL MAGNETOMETER WITH INTEGRATED ELECTRONICS - A method of manufacturing an apparatus | 02-04-2010 |
20100025581 | INFRARED IMAGING APPARATUS - A representative embodiment of the invention provides an infrared (IR) imaging system adapted to (i) convert an IR image of an object into mechanical displacements of a plurality of movable plates, (ii) use the mechanical displacements to impart a corresponding spatial phase modulation pattern onto a beam of visible light, and (iii) apply spatial filtering to convert the spatial phase modulation pattern into a visible image of the object. | 02-04-2010 |
20100021165 | OPTICAL TELECOMMUNICATIONS NETWORK AND METHOD - An optical communications network architecture and associated method which employs time and wavelength-interleaving for homing between nodes/satellites and hubs and for grooming, while employing wavelength-division-multiplexed wavelength circuits between hubs without requiring cross-connects or routers therebetween. | 01-28-2010 |
20100020726 | AUTOMATICALLY CONFIGURING MESH GROUPS IN DATA NETWORKS - In one embodiment, a method for setting up a flow-through mesh group (FTMG) for transmitting link-state packets (LSPs) in a network having a plurality of nodes interconnected by links. The FTMG is a combination of multiple spanning trees for the network through which LSPs are forwarded. FTMG set-up messages are received at ports of each node of the network from peer ports of linked nodes. FTMG set-up messages identify root nodes of the multiple spanning trees and the transmission modes of the peer ports. The FTMG set-up messages are used to determine (1) a root node for each spanning tree, (2) a root port on each node for each spanning tree, and (3) directionality of ports of the nodes. FTMG set-up messages are then used to determine the transmission mode of ports of the nodes and, subsequently, to update the spanning trees and transmission modes, as needed. | 01-28-2010 |
20100020719 | AUTOMATIC MAINTENANCE OF A DISTRIBUTED SOURCE TREE (DST) NETWORK - In one embodiment, an automatically maintained, distributed source tree (DST) network has a plurality of fully connected internal nodes. One or more internal nodes may be connected to one or more external nodes. A first internal node synchronizes its link-state database with another internal node by sending and receiving respective Reduced Sequence Number Packet-Data-Units (PDUs) (RSNPs). An RSNP includes summary information for link-state packets (LSPs) (1) originated by the first internal node, (2) received by the first internal node from the other internal node, and (3) received from and/or originated by external nodes. If an internal link fails, then the corresponding end-nodes may recover and maintain automatic DST operation by entering either relay-mode or switch-mode operation. In relay-mode operation, an end-node tunnels packets to the other end-node via an intermediary node. In switch-mode operation, an intermediary node is selected to forward packets from one end-node to the other end-node. | 01-28-2010 |
20100020383 | THERMAL ACTUATOR FOR AN INFRARED SENSOR - In one embodiment, an infrared (IR) sensor has a flexible beam connected between two anchors supported on a substrate. The beam is mechanically coupled to a plate that has an IR-absorbing layer and is adapted to transfer the IR-induced heat to the beam. The heat transfer causes the beam to deform and move the plate with respect to the substrate. The motion of the plate is detected electrically or optically to quantify the amount of IR radiation received by the plate. The beam, anchors, and plate are formed from a planar layer of material that is supported at a specified offset distance from the substrate. During fabrication, certain portions of the planar layer are removed to define the beam, anchors, and plate. | 01-28-2010 |
20100009701 | METHOD AND APPARATUS FOR DATA MESSAGE DELIVERY TO A RECIPIENT MIGRATED ACROSS TECHNOLOGY NETWORKS - A method of providing SMS delivery to recipients migrated across different technology networks. The method includes receiving a short message service (SMS) text message from a sender at a short message service center (SMSC), wherein the SMS text message includes a destination number for a recipient of the SMS text message. A first routing request is sent to a database in a first network for SMS routing information for the destination number via a first signal transfer point (STP). The first STP determines whether the destination number is a migrated or a non-migrated destination number based on data received from the first database. An an error indication is provided to the SMSC if the destination number and the first routing request are for different communication networks. Finally, a second routing request is sent to a second database in a second network for SMS routing information for the destination number via a second STP. | 01-14-2010 |
20100009671 | AUTOMATIC DATA CAPTURE WHEN WIRELESS SERVICE DISRUPTION IS DETECTED - A method is provided in a wireless telecommunications network ( | 01-14-2010 |
20100009633 | SECURITY ENCRYPTION FOR WIRELESS PERIPHERALS - An apparatus is provided for securing data wirelessly transmitted between a wireless peripheral ( | 01-14-2010 |
20100006132 | Stacked Thermoelectric Modules - An apparatus includes a first thermally conductive body having a plurality of fingers and a second thermally conductive body having a plurality of fingers. The first and second bodies are configured such that the fingers of the first body are interdigitated with the fingers of the second body. Each of a plurality of thermoelectric modules has a first major surface and an opposing second major surface. The first major surface of each thermoelectric module is in thermal contact with one of the fingers of the first body, and the second major surface is in thermal contact with one of the fingers of the second body. | 01-14-2010 |
20100003460 | Micro-Posts Having Improved Uniformity and a Method of Manufacture Thereof - As discussed herein, there is presented an apparatus comprising micro-posts. The apparatus includes a substrate having a planar surface, a plurality of micro-posts located on the planar surface, wherein each micro-post has a base portion on the planar surface and a post portion located on a top surface of the corresponding base portion, and wherein side surfaces of the base portions intersect the planar surface at oblique angles. | 01-07-2010 |
20090324253 | OPTICAL MODULATOR FOR HIGHER-ORDER MODULATION - According to one embodiment of the invention, a 16-QAM optical modulator has a Mach-Zehnder modulator (MZM) coupled to a drive circuit that drives the MZM based on two electrical binary signals. The output of the MZM corresponds to an intermediary constellation consisting of four constellation points arranged on a straight line in the corresponding in-phase/quadrature-phase (I-Q) plane. Two of these constellation points correspond to a zero phase, and the remaining two constellation points correspond to a phase of π radian. The 16-QAM optical modulator further has a phase shifter that modulates the output of the MZM based on two additional electrical binary signals. The resulting optical output signal corresponds to a star 16-QAM constellation, which is produced by incremental rotation of the intermediary constellation. | 12-31-2009 |
20090324243 | SCALABLE LOAD-BALANCED INTERCONNECT SWITCH BASED ON AN OPTICAL SWITCH FABRIC HAVING A BANK OF WAVELENGTH-SELECTIVE SWITCHES - According to one embodiment, an interconnect switch has an optical switch fabric (OSF) having N input ports and N output ports. The OSF has a bank of optically interconnected wavelength-selective switches and is adapted to route optical signals from the input ports to the output ports. In a fully deployed implementation, the interconnect switch has N input line cards and N output line cards. Each of the input line cards is adapted to generate N respective modulated optical signals using carrier wavelengths that are controllably selected from more than N carrier wavelengths to provide wavelength redundancy for optically connecting the input line card and any of the output line cards. In a partially deployed implementation, the interconnect switch has fewer than N input line cards and/or fewer than N output line cards. In either the fully deployed implementation or a partially deployed implementation, the interconnect switch is capable of load balancing. | 12-31-2009 |
20090324221 | SCALABLE LOAD-BALANCED INTERCONNECT SWITCH BASED ON AN ARRAYED WAVEGUIDE GRATING - According to one embodiment, an interconnect switch has an arrayed waveguide grating (AWG) having N input ports and N output ports. The AWG is characterized by two or more diffraction orders and is adapted to route optical signals from the input ports to the output ports. In a fully deployed implementation, the interconnect switch has N input line cards and N output line cards. Each of the input line cards is adapted to generate N respective modulated optical signals using carrier wavelengths corresponding to at least two different diffraction orders of the AWG to provide wavelength redundancy for optically connecting the input line card and any of the output line cards. In a partially deployed implementation, the interconnect switch has fewer than N input line cards and/or fewer than N output line cards. In either the fully deployed implementation or a partially deployed implementation, the interconnect switch is capable of load balancing. | 12-31-2009 |
20090323065 | Light Analyzer Device - Apparatus including photodetector device, signal output device, and housing configured to be held in human hand. Signal output device is configured for emitting perceived color signal corresponding to light color data detected by photodetector device. Method that includes: providing apparatus configured to be held in human hand and having photodetector device and signal output device; causing photodetector device to detect light color data from light source; and causing signal output device to emit perceived color signal corresponding to detected light color data. | 12-31-2009 |
20090322182 | Electromechanical Actuators - Apparatus including layer of polarizable material located between first and second electrodes. Polarizable material has block copolymeric composition including elastomeric domain blocks and conductive domain blocks. Method that includes providing layer of polarizable material having block copolymeric composition including elastomeric domain blocks and conductive domain blocks, first and second electrodes being on opposite surfaces of the layer. Method also includes applying voltage differential between electrodes, causing dimension of layer to change. | 12-31-2009 |
20090321586 | Cable Retainer - Device including flexible main sheet, two fold regions, and two flexible flap sheets. Main sheet has first and second opposite sides and edge surrounding sides. Fold regions are located along two spaced-apart portions of edge. Each flap sheet has first and second opposite sides. Flap sheets are integrated with main sheet at fold regions. Flap sheets are configured for being bent toward first side of main sheet. Main sheet is configured for being bent to move fold regions toward each other, while retaining bias for moving fold regions away from each other. Apparatus including trough and device. Trough includes base member integrated with two spaced-apart wall members forming side walls in trough. One side of each flap sheet in contact with a side wall. Main sheet is bent with fold regions at least partially positioned toward each other, and configured for retaining bias for moving fold regions away from each other. Methods also provided. | 12-31-2009 |
20090316698 | PROCESSING OF PACKET FRAGMENTS - In one embodiment, the present invention is a technique for processing fragments received at a node (e.g., a router) in a datagram-based communication system in order to provide a wide range of protection against potential fragment-based attacks. Received fragments are examined as they are received to verify that they do not overlap one another and that the fragment sequence does not exploit common weaknesses in IP packet-reassembly algorithms. Valid fragment sequences that represent potential threats to the receiver can be reordered and/or fully or partially re-assembled and re-fragmented into a fragment sequence that eliminates or reduces the threat to the receiver. Fragmented sequences that represent a likely attack are blocked, as are subsequent fragments of the associated packet. | 12-24-2009 |
20090315974 | VIDEO CONFERENCING DEVICE FOR A COMMUNICATIONS DEVICE AND METHOD OF MANUFACTURING AND USING THE SAME - A video conferencing device for improving video quality when a communications device is used for a video conference. In one embodiment the device includes (1) a data collection module for collecting data regarding the location and orientation of a user's face relative to a camera on a communications device; and (2) a facial correction module associated with the data collection module, the facial correction module modifying a user's facial orientation and characteristics for transmission during a video conference based on data from the data collection module and from an associated database of relevant facial characteristics. | 12-24-2009 |
20090315173 | HEAT-TRANSFER STRUCTURE - An apparatus | 12-24-2009 |
20090313697 | System and method for pathological pattern protection - In a frame synchronous scrambled communications network, communications are protected from pathological bit patterns that may lead to loss of receiver lock by detecting a pathological bit pattern in an incoming traffic stream using a pathological pattern detector. When a pathological bit pattern, such as a transition-less bit pattern, is detected, a corrective bit pattern is generated and inserted or substituted into the incoming traffic stream before transmission to the receiver. The receiver can be configured to revert the modified traffic stream back to the original traffic stream. | 12-17-2009 |
20090302974 | LIGHT-WEIGHT LOW-THERMAL-EXPANSION POLYMER FOAM FOR RADIOFREQUENCY FILTERING APPLICATIONS - An apparatus | 12-10-2009 |
20090296594 | ESTIMATING CARDINALITY DISTRIBUTIONS IN NETWORK TRAFFIC - In one embodiment, a method of monitoring a network. The method includes: receiving, from each host of a set of two or more hosts of the network, a corresponding vector of M components constructed based on data packets received at the host during a time period, M being an integer greater than 1; and, based on the constructed vectors, using an expectation-maximization algorithm to estimate a cardinality distribution for the hosts in the set, wherein constructing a vector includes updating a component of the vector of the corresponding host in response to the corresponding host receiving a data packet, the updating including selecting the component for updating by hashing one or more fields of the data packet received by the corresponding host. | 12-03-2009 |
20090295606 | APPARATUS FOR ENHANCING PACKET COMMUNICATION - An apparatus for enhancing packet communication is disclosed. In one embodiment, the apparatus includes an encoder configured to convert input data to a binary coded base system of an augmented code employing a base of an original code used for coding the input data, wherein the augmented code employs more symbols for coding than the original code, the encoder including: (1) an adder configured to add the input data to a multiplication product to generate a base sum that is binary-coded in the augmented code, (2) a multiplier configured to multiply an accumulated value by a base of the original code to provide the multiplication product that is binary-coded in the augmented code, and (3) an accumulator configured to employ the base sum to provide an accumulated value as an output for the encoder, wherein the accumulated value is binary-coded in the augmented code to represent the input data. | 12-03-2009 |
20090295408 | NANOSTRUCTURED SURFACE FOR MICROPARTICLE ANALYSIS AND MANIPULATION - The present invention provides an apparatus, comprising a first mechanical structure having a first rigid surface, an area of the first rigid surface having a nanostructured surface. The apparatus also includes a second mechanical structure having a second rigid surface and opposing the first mechanical structure. The second rigid surface is cooperable with the nanostructured surface such that a microscopic particle is locatable between the nanostructured surface and the second rigid surface. | 12-03-2009 |
20090294117 | Vapor Chamber-Thermoelectric Module Assemblies - An apparatus includes a body containing a vapor chamber and having first and opposing second major surfaces and a thermoelectric module having first and opposing second major surfaces. The second major surface of the body is in thermal contact with the first major surface of the thermoelectric module. A heat sink has a first major surface in thermal contact with the second major surface of the thermoelectric module. The thermoelectric module is configured to control a flow of heat between the body and the heat sink. | 12-03-2009 |
20090279886 | Burst-mode data recovery for multi-gigabit passive optical networks - In a TDMA optical network, a clock data recovery module uses signal oversampling and preamble correlation together with enhanced performance modules to extract additional data from the upstream transmission signal. Information including duty cycle, ONT power estimation, signal noise and jitter can be extracted from the upstream signal using digital logic and used to tune network components and/or alleviate network conditions. | 11-12-2009 |
20090278728 | Doppler Radar Cardiopulmonary Sensor and Signal Processing System and Method for Use Therewith - A Doppler radar signal processing system and method and a Doppler radar employing the system or the method. In one embodiment, the system includes: ( | 11-12-2009 |
20090273713 | DEVICE AND/OR METHOD FOR WARNING ALERT RECEPTION DURING POWER OUTAGE - An electrically powered device ( | 11-05-2009 |
20090271509 | PROBABILISTIC AGGREGATION OVER DISTRIBUTED DATA STREAMS - In one embodiment, a method of monitoring a network. The method includes, at each node of a set, constructing a corresponding vector of M components based on a stream of data packets received at the node during a time period, the set including a plurality of nodes of the network, M being greater than 1; and estimating a value of a byte traffic produced by a part of the packets based on the constructed vectors, the part being the packets received by every node of the set. The constructing includes updating a component of the vector corresponding to one of the nodes in response to the one of the nodes receiving a data packet. The updating includes selecting a component of the vector to be updated by hashing a property of the received data packet. | 10-29-2009 |
20090268623 | EFFICIENT PROBABILISTIC COUNTING SCHEME FOR STREAM-EXPRESSION CARDINALITIES - In one embodiment, a method of monitoring a network. The method includes, at each node of a fixed set, constructing a corresponding vector of M components based on data packets received at the node during a time period, M being an integer greater than 1, the fixed set being formed of some nodes of the network; and, based on the constructed vectors, estimating how many of the received data packets have been received by all of the nodes of the set or estimating how many flows of the received data packets have data packets that have passed through all of the nodes of the set. The constructing includes updating a component of the vector of one of the nodes in response to the one of the nodes receiving a data packet. The updating includes selecting the component for updating by hashing a property of the data packet received by the one of the nodes. | 10-29-2009 |
20090262906 | TELECOMMUNICATION RELAY SERVICE ASSISTANCE FOR INCOMING CALLS - A method is provided in a telecommunications network for clandestinely providing a transmission relay service (TRS) to a called party ( | 10-22-2009 |
20090257706 | Polarization Component Processor, Method of Processing Polarization Components and Integrated Photonic Circuit Employing the Same - An apparatus and a method by which polarization components may be processed separately, for example, to enable a polarization beam splitter (PBS) or a switch. In one embodiment, the apparatus includes: first and second Mach-Zehnder interferometers, each Mach-Zehnder interferometer having input and output optical couplers and two internal optical arms, each optical arm connecting one output of the input optical coupler to a corresponding input of the output optical coupler, the output optical coupler of the first Mach-Zehnder interferometer being the input optical coupler of the second Mach-Zehnder interferometer, wherein the input optical coupler of the first Mach-Zehnder interferometer is configured to transmit one polarization component of the light to two of the outputs thereof and to transmit a different polarization of the light to substantially only one of the outputs thereof in response to receiving said light at an input thereof. | 10-15-2009 |
20090248800 | PEER-TO-PEER COMMUNICATION BETWEEN DIFFERENT TYPES OF INTERNET HOSTS - In one embodiment, a method for processing, at an enhanced Session Initiation Protocol (SIP) proxy (e-proxy), (1) a SIP INVITE message to a first user at an IPv4/IPv6 dual-stack (DS) host, connected to an IPv6 network, from a second user at an IPv4 host, connected to an IPv4 network. The e-proxy receives the SIP INVITE message from the IPv4 network. When the e-proxy determines that Dual Stack Transition Mechanism (DSTM) service is required, the e-proxy obtains a temporary IPv4 address for the DS host, finds a suitable tunnel end-point (TEP), and sends a corresponding, but modified, INVITE message to the DS host. The modified INVITE message body includes invocation of DSTM service, the temporary IPv4 address, the TEP's IPv6 address, and the IPv4 host's IPv4 address. The e-proxy sends a BIND message to the TEP to bind the DS host's IPv6 address to the temporary IPv4 address for proper tunneling. | 10-01-2009 |
20090245713 | INTEGRATED TUNABLE OPTICAL EQUALIZER - Provided is an apparatus and method for use thereof. The apparatus, in one embodiment, includes first and second 1×N couplers integrated on a substrate and configured to receive an optical symbol having an intended time slot, N being at least three. The apparatus, in this embodiment, further includes N waveguide arms integrated on the substrate, having modulators and coupled between the first and second 1×N couplers. The apparatus, in this embodiment, additionally, includes a modulator controller configured to drive the modulators such that, following transmission over a distance, components of the optical symbol outside of the intended time slot are attenuated relative to components within the intended time slot. | 10-01-2009 |
20090243625 | TEST STRUCTURE TO MONITOR THE RELEASE STEP IN A MICROMACHINING PROCESS - Electrical and visual test structures monitor the degree of removal of conductive sacrificial layers used in micromachining processes that fabricate micro-electromechanical systems (MEMS). | 10-01-2009 |
20090243589 | SURFACE-PLASMON DETECTOR BASED ON A FIELD-EFFECT TRANSISTOR - According to one embodiment, a surface-plasmon (SP) beam generated by an SP source and directed via an SP waveguide is applied to a gate node of a field-effect transistor (FET). The FET also has a source node and a drain node. In a representative configuration, the gate, source, and drain nodes are electrically biased to pass an electrical current between the source and drain nodes in a manner that makes the electrical current responsive to the intensity of the SP beam. | 10-01-2009 |
20090242175 | Thermal energy transfer device - Device having first wick evaporator including first membrane and plurality of first thermally-conductive supports. First membrane has upper and lower surfaces. First membrane also has plurality of pores with upper pore ends at upper surface of first membrane and with lower pore ends at lower surface of first membrane. Each of first thermally-conductive supports has upper and lower support ends. Upper support ends of first thermally-conductive supports are in contact with first membrane. Each of first thermally-conductive supports has longitudinal axis extending between the upper and lower support ends, average cross-sectional area along axis, and membrane support cross-sectional area at upper support end, the membrane support cross-sectional area effectively being smaller than average cross-sectional area. First thermally-conductive supports are configured to conduct thermal energy from lower support ends of first thermally-conductive supports to first membrane. Process includes providing wick evaporator, providing liquid working fluid in contact with lower or upper surface of membrane, and causing liquid working fluid to be evaporated from liquid-vapor interface in membrane. | 10-01-2009 |
20090242036 | Directed-flow conduit - Device including channel having channel input and output. Channel has interior channel surface extending along channel path from channel input to output. In one implementation, channel includes plurality of channel sections in serial communication along channel path. Each of channel sections includes first internal circumference spaced apart along channel path from second internal circumference, in each of channel sections the first and second internal circumferences being substantially different. Each of channel sections includes sub-surface of interior channel surface. At least region of sub-surface of each channel section includes distribution of raised micro-scale features. As another implementation, at least first region of interior channel surface includes distribution of raised micro-scale features interrupted by plurality of raised barriers spaced apart along channel path on interior channel surface. Each raised barrier extends on interior channel surface in directions partially transverse to and partially parallel to longitudinal axis. Method also provided. | 10-01-2009 |
20090238557 | Self-Calibrating Integrated Photonic Circuit and Method of Control Thereof - A self-calibrating integrated photonic circuit and a method of controlling the same. In one embodiment, the circuit includes: (1) a substrate, (2) a laser located on the substrate and configured to produce source light at an output frequency, (3) a laser alignment sensor located on the substrate and including: (3a) a reference optical resonator configured to receive the source light, have a null proximate a predetermined center frequency and provide output light as a function of a relationship between the output frequency and the center frequency and (3b) a photodetector configured to provide an electrical signal of a magnitude that is based on the output light and (4) a calibration controller located on the substrate, coupled to the photodetector and configured to adjust the output frequency based on the magnitude. | 09-24-2009 |
20090238526 | OPTICAL TRANSMISSION FIBER WITH THERMAL MANAGEMENT FOR HIGH POWER APPLICATIONS - An optical transmission fiber including a core having a first index of refraction, a cladding material located around the core and having a second index of refraction less than the first index of refraction, a first coating material located around a first portion of the cladding material and having a third index of refraction greater than the second index of refraction, and a second coating material located around a second portion of the cladding material and having a fourth index of refraction less than the second index of refraction. | 09-24-2009 |
20090219953 | METHOD AND APPARATUS FOR ALLOWING NON-IP BASED NETWORKS TO INTERACT WITH IPTV-BASED SYSTEMS - A method of allowing a non-IP-based network to interact with an IPTV-based network is provided. The method comprises: receiving an indication at an IPTV Mediation Application Server (IPTV Mediation AS) that a subscriber to IPTV service is watching television, wherein the television is connected to an IPTV set-top box (IPTV STB) in a home viewing network; receiving a call from a caller directed to a circuit-switched communication device of the subscriber; suspending normal call processing and giving control of the call to the IPTV Mediation AS; interacting with the home viewing network and sending instructions to the IPTV STB regarding a pop-up message to be played on the television; receiving instructions for handling the call at the IPTV Mediation AS; and sending the instructions for handling the call to a service switching point. | 09-03-2009 |
20090214223 | CMOS-COMPATIBLE TUNABLE MICROWAVE PHOTONIC BAND-STOP FILTER - According to one embodiment, a microwave photonic band-stop (MPBS) filter uses an electrical input signal to drive an optical Mach-Zehnder modulator. A modulated optical carrier produced by the modulator is applied to an optical filter having at least two tunable spectral attenuation bands that are located substantially symmetrically on either side of the carrier frequency. The resulting filtered optical signal is applied to an optical-to-electrical (O/E) converter to produce an electrical output signal. | 08-27-2009 |
20090214150 | INTEGRATED POLARIZATION SPLITTER/COMBINER - Provided is an apparatus and method for use thereof. The apparatus, in one embodiment, includes a 1x2 coupler in communication with a waveguide. The 1x2 coupler, in this embodiment, is configured to separate an input finite bandwidth optical signal provided from the optical waveguide into two similar optical signals. Input ends of first and second waveguide arms, in one embodiment, are in communication with the 1x2 coupler and configured to receive ones of the input optical signals. An inherent birefringence of each of the first and second waveguide arms may be substantially similar. Moreover, the first and second waveguide arms have different physical path lengths that differ by an amount (ΔL). Additionally, a 2x2 coupler may be in optical communication with an output end of the first and second waveguide arms and configured to provide an output TE polarization and an output TM polarization. | 08-27-2009 |
20090203310 | SUPERPOSITION TRANSMISSION AND DETECTION OF ACCESS AND BACKHAUL SIGNALS - According to one embodiment of the invention, a wireless communication system (WCS) has a wireless relay and a base station adapted to process wireless access traffic for one or more mobile terminals (MTs) and to process wireless backhaul traffic. The wireless relay is adapted to generate a superimposed signal having a backhaul component intended for the base station and an access component intended for one of the MTs. The wireless relay is further adapted to allocate power between the backhaul and access components based on signal propagation conditions between itself, the base station, and the MT to render the backhaul component decodable at the base station and the access component decodable at the MT. | 08-13-2009 |
20090199281 | METHOD AND APPARATUS FOR VIRTUAL WI-FI SERVICE WITH AUTHENTICATION AND ACCOUNTING CONTROL - A method of providing virtual Wi-Fi service with accounting and authentication control via a virtual Wi-Fi access network is provided. The method comprises: connecting a subscriber to the virtual Wi-Fi access network, wherein the virtual Wi-Fi access network comprises a plurality of individual Wi-Fi access points in communication with at least one virtual Wi-Fi access server; prompting the subscriber for an account ID and password; performing subscriber authentication at the virtual Wi-Fi access server; where the subscriber has been authenticated, establishing a Wi-Fi session for the subscriber in the virtual Wi-Fi access network and applying an accounting function to the Wi-Fi session; and notifying the virtual Wi-Fi access server when the subscriber exits from the virtual Wi-Fi network. | 08-06-2009 |
20090198808 | METHOD AND APPARATUS FOR PROVIDING VIRTUAL WI-FI ACCESS - A method of providing virtual Wi-Fi service via a virtual Wi-Fi access network is provided. The method comprises: receiving data from an owner of an individual Wi-Fi access point; updating the owner of the Wi-Fi access point with access IDs, passwords, and security keys for a plurality of virtual Wi-Fi access subscribers; receiving subscriber data from a virtual Wi-Fi access subscriber; providing the subscriber with virtual Wi-Fi access log-in information; connecting the subscriber to the virtual Wi-Fi access network, wherein the virtual Wi-Fi access network comprises a plurality of individual Wi-Fi access points in communication with at least one virtual Wi-Fi access server; and billing the subscriber for virtual Wi-Fi access. | 08-06-2009 |
20090195782 | PLASMONIC DEVICE FOR MODULATION AND AMPLIFICATION OF PLASMONIC SIGNALS - According to one embodiment of the invention, a plasmonic device has a beam splitter adapted to split a surface-plasmon (SP) input beam into first and second SP beams and direct them along first and second propagation paths, respectively. One of the propagation paths has a plasmonic-beam interaction region adapted to controllably change the phase of the corresponding split beam within that interaction region in response to an SP control signal applied thereto. The plasmonic device further has an SP beam mixer adapted to receive the first and second beams from their respective propagation paths and to mix them to produce an SP output signal. In various configurations, the plasmonic device can operate as a plasmonic-signal amplifier, a plasmonic-beam router, a 1×2 plasmonic-beam switch, and/or a plasmonic modulator. | 08-06-2009 |
20090185141 | DIFFUSER CONFIGURATION FOR AN IMAGE PROJECTOR - According to one embodiment, an image projector has a spatial light modulator (SLM) adapted to modulate illumination from a laser with a spatial pattern such that the modulated illumination projects an image on a viewing screen. The image projector further has an optical diffuser located on an optical path between the laser and the SLM. The laser is adapted to illuminate the SLM through the optical diffuser to create an illuminated area at the SLM. The optical diffuser is adapted to introduce an angular spread into the light transmitted therethrough. The image projector is adapted to move the illuminated area with respect to the SLM to mitigate speckle in the projected image. | 07-23-2009 |
20090185140 | Multi-color light source - System including first and second light sources and controller. First light source is configured to generate first light beam of first perceived color. Second light source is configured to generate second light beam of different second perceived color. Controller is configured to direct light from first light beam to an image projector during first time intervals and to direct light from second light beam to an image projector during second time intervals. First light source generates first light beam with first intensity. Second light source generates second light beam with different second intensity. Controller is configured to temporally interleave first and second time intervals such that second time intervals are longer than first time intervals. Method also provided. | 07-23-2009 |
20090180729 | CMOS-COMPATIBLE POLARIZATION-DIVERSE TUNABLE OPTICAL BANDPASS FILTER - According to one embodiment, an optical filter has a polarization rotator and two instances of an optical bandpass filter (OBPF). The first instance of the OBPF processes a TE-polarized component of an optical input signal to produce a first filtered signal. The polarization rotator then transforms the TE polarization of the first filtered signal into the TM polarization. The polarization rotator also transforms the polarization of a TM-polarized component of the optical input signal into the TE polarization. The second instance of the OBPF processes the resulting TE-polarized signal to produce a second filtered signal. The first and second filtered signals having TM and TE polarizations, respectively, are then combined to produce a filtered output signal. | 07-16-2009 |
20090173886 | Cloaking device detection system - System including electromagnetic radiation source and electromagnetic radiation detector. Electromagnetic radiation source is configured to excite, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Electromagnetic radiation detector is configured to receive responsive emission of electromagnetic radiation from object. System is configured to detect presence of object. Method includes exciting, with electromagnetic radiation having first source frequency, object configured for suppressing responsive emission of electromagnetic radiation having first source frequency. Method includes receiving responsive emission of electromagnetic radiation from object and utilizing responsive emission to detect presence of object. | 07-09-2009 |
20090168026 | FRONT PROJECTION SCREEN, A METHOD OF CONSTRUCTING THE SAME AND A FRONT PROJECTION SYSTEM INCLUDING THE SAME - An apparatus, a method of fabricating a front projection screen and a front projection system is provided. In one embodiment, the apparatus includes a front projection screen including an image surface and a selective transmission layer fixed to and covering the surface. The surface is configured to diffusely reflect light incident thereon and the selective transmission layer is configured to allow projected light from a laser source to illuminate the surface and block ambient light incident thereon. The laser projected light has a wavelength within a designated bandwidth. | 07-02-2009 |
20090163384 | Detection apparatus for biological materials and methods of making and using the same - Apparatus comprising a surface site comprising a substantially inorganic surface having a chemical composition selected from the group consisting of metals, semiconductors, insulators, and mixtures thereof, the surface positioned within a polypeptide bonding region and having a selective bonding affinity for a polypeptide; a plurality of interlayers between which the surface site is interposed; a distal site end on the surface site and distanced from the interlayers, the surface being provided on the distal site end; the surface site and the interlayers being interposed between first and second supports; first and second conductors provided on the first and second supports and having respective first and second distal conductor ends positioned within the polypeptide bonding region; the conductors being capable of applying an external voltage potential across the polypeptide bonding region. Apparatus, optionally comprising such first and second supports and conductors; and comprising a third conductor in electrical communication with the surface site, the third conductor positioned for electrical communication with a source of an external bias voltage. Techniques for making apparatus. | 06-25-2009 |
20090153326 | Method for locating intruder - Method includes receiving plurality of measured signal strengths, computing estimated intruder signal strength associated with each of plurality of potential intruder locations, and selecting estimated intruder location. Receiving plurality of measured signal strengths includes receiving plurality of measured signal strengths each associated with sensor included in plurality of sensors distributed in monitored area that includes plurality of potential intruder locations. Selecting estimated intruder location includes selecting as estimated intruder location, first potential intruder location associated with estimated intruder signal strength greater than or equal to estimated intruder signal strength associated with another potential intruder location adjacent to first potential intruder location. Computer-readable medium containing code that executes method. | 06-18-2009 |
20090148597 | THERMALLY STABILIZED WAVEGUIDES - An apparatus comprising a planar optical waveguide having an optical core and optical cladding next to the optical core. The optical core or cladding includes a plurality of particles therein. Each particle has a nucleus and polymeric molecules permanently bonded to the nucleus to form a shell. A plurality of nuclei are dispersed in said core or cladding. | 06-11-2009 |
20090142016 | PLASMONIC OPTICS FOR PLASMONIC CIRCUITS - According to one embodiment, a circuit element for a plasmonic circuit is formed using a dielectric layer having two portions, each characterized by a different electric permittivity. The dielectric layer is adjacent to a metal layer, with the interface between the layers defining a conduit for propagation of surface plasmons. A dielectric boundary between the two portions of the dielectric layer is shaped to enable the circuit element to change one or more of propagation direction, cross-section, spectral composition, and intensity distribution for a beam of surface plasmons received by the circuit element. | 06-04-2009 |
20090140755 | Circuit board testing system - System including backplane, and first and second circuit boards. First circuit board is attached to backplane and has first optical signal transmitter. Second circuit board is attached to backplane and has first optical signal receiver. First optical signal transmitter and first optical signal receiver are mutually configured and mutually aligned for circuit board test signal communication from first circuit board to second circuit board across free space. Method includes providing backplane and first and second circuit boards, where first circuit board has first optical signal transmitter and second circuit board has first optical signal receiver. Method further includes attaching first and second circuit boards to backplane, and mutually configuring and mutually aligning first optical signal transmitter and first optical signal receiver for circuit board test signal communication from first circuit board to second circuit board across free space. | 06-04-2009 |
20090129780 | OPTICAL SIGNAL SYNCHRONIZER - One embodiment of the invention provides an optical signal synchronizer having a plurality of optical channel synchronizers. Each optical channel synchronizer receives a respective input wavelength division multiplexing (WDM) signal and processes it to produce a corresponding output WDM signal, in which optical data packets corresponding to different carrier wavelengths are synchronized to each other regardless of the presence or absence of such synchronization in the input WDM signal. The optical signal synchronizer further has an optical multiplex synchronizer that receives the output WDM signals from the optical channel synchronizers and synchronizes them to each other and to an external reference clock without demultiplexing any of them into individual WDM components. | 05-21-2009 |
20090129779 | MULTIPLEX DELAY UNIT - According to one embodiment, a multiplex delay unit comprises an optical all-pass filter (OAPF) adapted to apply continuously tunable group delay to a wavelength division multiplexing (WDM) signal so that all of its WDM components are delayed by substantially the same delay time. The OAPF has a free spectral range (FSR) that matches spectral separation between carrier wavelengths of the WDM signal. Advantageously, an optical multiplex synchronizer suitable for feeding a synchronous optical switch fabric can be implemented as an integrated waveguide circuit using a plurality of such multiplex delay units. | 05-21-2009 |
20090129723 | PROGRAMMABLE OPTICAL ARRAY - An apparatus having a topology that allows building complicated optical programmable arrays useful for manipulating the phase and/or amplitude of an optical signal. Sophisticated filtering and other optical signal processing functionality can be programmed into the array after a chip containing the array has been fabricated. This programming capability is analogous to that of electronic field programmable gate arrays (FPGA's). Apparatus described herein will provide a powerful tool for processing optical signals or very broadband electrical signals. | 05-21-2009 |
20090116789 | TUNABLE OPTICAL DISPERSION COMPENSATING APPARATUS - A tunable optical dispersion compensator (TODC) having a silica arrayed-waveguide grating (AWG) directly coupled at its input to a Mach-Zehnder interferometer device and at its output to a polymer thermo-optic lens. | 05-07-2009 |
20090111201 | Ridge and mesa optical waveguides - Apparatus including: a substrate layer having a substantially planar top surface; an optically conductive peak located and elongated on, and spanning a first thickness measured in a direction generally away from, the top surface; the optically conductive peak having first and second lateral walls each including distal and proximal lateral wall portions, the proximal lateral wall portions intersecting the top surface; and first and second sidewall layers located on the distal lateral wall portions, the sidewall layers not intersecting the top surface and spanning a second thickness that is less than the first thickness measured in the same direction. | 04-30-2009 |
20090097204 | HORIZONTAL CHASSIS HAVING FRONT TO BACK AIRFLOW - Provided is an apparatus, a system, and a method for operating the same. The apparatus, in one embodiment, includes a chassis having a front configured to accept one or more circuit boards, a back, and first and second sides. The apparatus, in this embodiment, further includes one or more slots located within the chassis, each slot configured to receive one of the circuit boards at an angle with respect to the first and second sides. The slots, in this embodiment, at least partially define a first plenum opening to the front and a second plenum opening to the back. The apparatus additionally includes a fan assembly coupled to one of the first plenum or the second plenum. | 04-16-2009 |
20090097203 | SERVO DAMPER CONTROL OF AIRFLOW WITHIN AN ELECTRONICS CHASSIS - Provided is an apparatus and a system. The apparatus, in one embodiment, includes a chassis having one or more slots configured to hold circuit boards and a plenum coupled to the chassis. The apparatus, in this embodiment, further includes a fan assembly coupled to the plenum and configured to provide an airflow therethrough, and servo dampers associated with the one or more slots and configured to allocate a portion of the airflow to associated air paths. | 04-16-2009 |
20090096999 | SPECKLE REDUCTION USING A TUNABLE LIQUID LENS - A representative embodiment of the invention provides a projection system having a laser source that incorporates a tunable liquid lens and a spatial light modulator adapted to modulate light generated by the laser source to project an image on a viewing screen. The tunable liquid lens is adapted to vary focal length, alignment or position with respect to an optical element that is external to the lens, ability to diffuse light, and/or polarization rotation angle. | 04-16-2009 |
20090092350 | RESONATOR-ASSISTED CONTROL OF RADIO-FREQUENCY RESPONSE IN AN OPTICAL MODULATOR - In one embodiment, an optical modulator has a Mach-Zehnder interferometer (MZI) and an optical resonator coupled, via a tunable optical coupler, to one of the MZI internal arms. The optical resonator induces in the MZI frequency-dependent optical losses characterized by a comb of spectral resonances. The coupling strength between the optical resonator and the MZI set by the optical coupler controls the magnitude of the loss due to the resonances, while one or more optical phase shifter located in the optical resonator controls the spectral position of the resonances. Either the optical coupler or the optical phase shifter, or both, can be tuned to adjust the modulator's radio-frequency response curve. | 04-09-2009 |
20090085699 | MEMS ACTUATOR - Apparatus including substrate, pusher assembly, and flexor assembly adjacent to pusher assembly. Pusher assembly includes hot and cold pusher arms. First ends of hot and cold pusher arms are anchored over substrate. Second ends of hot and cold pusher arms are coupled together and suspended for lateral displacement over substrate. Flexor assembly includes flexor arm, and conductor having actuator contact. First end of flexor arm is anchored over substrate. Pusher assembly is configured for causing lateral displacement of second end of flexor arm and of actuator contact over the substrate. Method includes providing apparatus and causing pusher assembly to laterally displace second end of flexor arm and actuator contact over substrate. | 04-02-2009 |
20090084256 | INITIAL STRIKE-FACE LAYER FOR ARMOR, A METHOD OF CONSTRUCTING AN ARMOR PLATE AND ARMOR - The present invention provides an initial strike-face layer for armor, a method of constructing an armor plate and armor. In one embodiment, the initial strike-face layer includes a substantially planar surface having a relief pattern with raised or recessed structures, each of the structures having sides that are oblique to the substantially planar surface. | 04-02-2009 |
20090074426 | MONOLITHIC DQPSK RECEIVER - A monolithic, Indium Phosphide (InP) differential phase-shift keying (DPSK) or differential quadrature phase shift keying (DQPSK) receiver that exhibits low polarization sensitivity. | 03-19-2009 |
20090074415 | PMD INSENSITIVE DIRECT-DETECTION OPTICAL OFDM SYSTEMS USING SELF-POLARIZATION DIVERSITY - A self-polarization diversity technique to combat PMD in a direct-detection optical OFDM system. This technique does not require any dynamic polarization control, and can simultaneous compensate PMD in a WDM system with one device. Simulation results show that this technique virtually completely eliminates the PMD impairments in direct-detection optical OFDM systems. | 03-19-2009 |
20090071525 | Cooling Hot-Spots by Lateral Active Heat Transport - An apparatus includes a thermoelectric cooler adjacent to a surface of a device substrate and including a first set of one or more metal electrodes, a second set of one or more metal electrodes, and one or more semiconductor members. Each member includes a material different from the device substrate and physically joins a corresponding one electrode of the first set to a corresponding one electrode of the second set. The electrodes and at least one member are configured to transport heat to or from a thermal load in a direction parallel to the surface of the device substrate. | 03-19-2009 |
20090044079 | RATE-ADAPTIVE FORWARD ERROR CORRECTION FOR OPTICAL TRANSPORT SYSTEMS - An optical transport system (OTS) having a plurality of optical transponders (OTs) connected via one or more optical links and adapted to communicate with one another using respective rate-adaptive forward-error-correction (FEC) codes. In one embodiment, the OTS has a rate control unit (RCU) adapted to configure the OTs to dynamically adjust the rates of the FEC codes based on an estimated performance margin for each link between two respective communicating OTs to optimize the overall capacity of the OTS while maintaining an adequate, but not excessive, overall system margin. | 02-12-2009 |
20090043901 | Bootstrapping Method For Setting Up A Security Association - In one embodiment, a method of the invention has the steps of: (A) establishing an access-layer security association (SA) between a mobile node (MN) and an authentication authorization accounting (AAA) server; (B) deriving a secondary key from an extended master session key (EMSK) corresponding to the access-layer SA; (C) providing the secondary key to a home agent; and (D) based on the secondary key, establishing an SA corresponding to an Open System Interconnection (OSI) layer higher than the access layer for securing communications between the home agent and a selected network node. In various embodiments, the selected network node can be (i) the MN, (ii) a proxy node configured on behalf of the MN, or (iii) a proxy node configured on behalf of the home agent. | 02-12-2009 |
20090040636 | TAPERED REINFORCING STRUTS FOR MICROMACHINED STRUCTURES - According to one embodiment, a reinforcing strut of the invention is a polyhedron attached to a plate and having at least two slanted facets, with each of the slanted facets oriented with respect to the plane of the plate at an angle different from about 90 degrees. Two slanted facets intersect to form an edge that causes the strut to have a tapered profile along the longitudinal axis of the strut. | 02-12-2009 |
20090040008 | THERMAL ACTUATOR FOR A MEMS-BASED RELAY SWITCH - A representative embodiment of the invention provides a thermal actuator for a MEMS-based relay switch. The thermal actuator has an “active” arm that is movably mounted on a substrate. The “active” arm has (i) a thermal expansion layer and (ii) a resistive heater that is electrically isolated from the thermal expansion layer. The thermal expansion layer is adapted to expand in response to a temperature change induced by a control current flowing through the resistive heater, thereby bending the “active” arm and moving that arm with respect to the substrate. Due to the fact that mechanical and electrical characteristics of the “active” arm are primarily controlled by the thermal expansion layer and the resistive heater, respectively, those characteristics can be optimized independently to obtain better operating characteristics for MEMS-based relay switches of the invention compared to those attained in the prior art. | 02-12-2009 |
20090036136 | Apparatus and Method for Hierarchical Routing with a Look-Ahead Mechanism - A system and a method for hierarchical routing with a look-ahead mechanism is disclosed. The method includes originating a call having an origination point in a first form through a first region. The method continues with routing the call to the originating MSC and then to a first internet protocol tandem associated with the first region. The method continues with forwarding the call to a second internet protocol tandem associated with a second region. The second region is generally the destination region. The method continues with determining whether or not the call qualifies as a call that may be terminated in a second form and if the call does qualify to be terminated in the second form, rerouting the call back to the original mobile switching center and connecting the call to the termination point in the second form, i.e., a circuit based form. | 02-05-2009 |
20090034930 | Polymeric compositions comprising quantum dots, optical devices comprising these compositions and methods for preparing same - The present invention relates to a polymeric composition of matter. The composition includes at least one polymer matrix and plurality of quantum dots distributed therein. The polymer may be a perfluorocyclobutane polymer having high optical transmission at telecommunications wavelengths. The quantum dots may include cap compounds to increase the solubility of the quantum dots in the composition. Typical cap compounds include aromatic organic molecules. Optical devices including waveguides may be fabricated from the polymeric compositions of the invention. | 02-05-2009 |
20090014825 | Flexible photo-detectors - Apparatus including flexible line extending along a length. Flexible line includes first charge carrier-transporting body, photosensitive body over first charge carrier-transporting body, and second charge carrier-transporting body over photosensitive body. Each of first and second charge carrier-transporting bodies and photosensitive body extend along at least part of length of flexible line. Photosensitive body is capable of near-infrared or visible light-induced generation of charge carrier pairs. Second charge carrier-transporting body is at least semi-transparent to near-infrared light or visible light. | 01-15-2009 |
20090010270 | METHOD AND APPARATUS FOR INTERNET PROTOCOL MULTIMEDIA BEARER PATH OPTIMIZATION THROUGH A SUCCESSION OF BORDER GATEWAYS - A method for identifying alternate end-to-end media paths through internet protocol realms using substitute session description protocol parameters is disclosed. The method includes receiving an session description protocol offer, including a list of previously traversed through internet protocol realms. The method continues with determining the next internet protocol realm for a media path based on unspecified signaling criteria. Finally, the method includes that if the next internet protocol realm to be traversed through is on the list of previously traversed through internet protocol realms, bypassing at least one border gateway associated with the current and previously traversed through internet protocol realms. The system implementing a method for identifying optimal end-to-end media paths and internet protocol multimedia subsystems include a list of internet protocol realm instances, an application level gateway configured to receive a session description protocol offer having connection information and port information, and a procedure to determine that if the next internet protocol realm that the media path may traverse through is on the list of instances, the media path connection information and port information is substituted to facilitate border gateway bypassing. | 01-08-2009 |
20090010234 | ROUTING PROTOCOL FOR A NETWORK EMPLOYING MULTI-USER WIRELESS CHANNELS - A routing protocol, according to one embodiment of which a first station of a wireless network monitors its outgoing transmissions corresponding to a traffic flow for occurrence of multi-tier signals and for ability to achieve a specified minimum transmission rate. Based on the monitoring, the first station may transmit an outgoing solicitation message that identifies the monitored traffic flow as a candidate for rerouting. Upon receipt of the solicitation message, a second station of the wireless network evaluates whether rerouting of the monitored traffic flow through the second station is capable of increasing data throughput for that traffic flow without decreasing data throughputs for other traffic flows presently handled by the second station. Based on this evaluation, the second station may transmit to the first station an offer to reroute the monitored traffic flow. The first station, in turn, evaluates this offer, e.g., by comparing its benefits with those of alternative offers that the first station might have received from other stations of the wireless network in response to the solicitation message. Based on the latter evaluation, the first station may reroute the monitored traffic flow through the station whose offer is deemed preferable. | 01-08-2009 |
20090010216 | MEDIA-ACCESS-CONTROL PROTOCOL FOR A NETWORK EMPLOYING MULTI-USER WIRELESS CHANNELS - A medium-access-control (MAC) scheduler, according to one embodiment of which a station of a wireless network evaluates data throughputs corresponding to three different transmission configurations for transmission of a packet over a first of that station's wireless links. The first and second of those transmission configurations have the packet encoded in the first and second tiers, respectively, of a two-tier signal. The third transmission configuration has the packet encoded as a conventional single-tier signal. For each of the first and second transmission configurations, the station selects a second of that station's wireless links for transmission of at least a second packet, with the first and second packets encoded in different respective tiers of the two-tier signal. The station varies power allocation between the first and second tiers to optimize data throughput for each of the first and second transmission configurations and selects from the first, second, and third transmission configurations one resulting in the highest data throughput. | 01-08-2009 |
20090009848 | ENHANCED OPTICAL READOUT SCHEME FOR A THERMAL IMAGER EMPLOYING A RECONFIGURABLE SPATIAL LIGHT MODULATOR - An apparatus includes a reconfigurable spatial light modulator capable of spatially modulating an incident wavefront responsive to an image formed on the modulator. A light source is configured to direct a coherent illumination light beam towards the modulator such that the modulator produces a modulated outgoing light beam therefrom. A filter is configured to spatially filter a light pattern formed by the outgoing light beam on a plane to selectively transmit light from a plurality of diffraction peaks therein. | 01-08-2009 |
20090009719 | COMPACT IMAGE PROJECTOR - A representative embodiment of the invention provides a compact image projector having a light source coupled to a spatial light modulator (SLM). The light source has a substantially planar structure. The overall size of the SLM is dominated by its length and/or width. The projector has an optical arrangement that enables the SLM to be oriented so that the SLM's dominant dimensions are parallel to the plane of the light source. Due to this relative orientation of the SLM and light source, one of the dimensions of the image projector can be smaller than 12 mm, which advantageously enables incorporation of the projector into a hand-held electronic device, such as a cell phone, PDA, or media player. | 01-08-2009 |
20090008430 | Solder-bonding process - Methods include providing substrate having substrate surface, forming metal-containing pad on substrate surface, and forming metal-containing protective shell enclosing metal-containing body on metal-containing pad. Methods may include forming sacrificial layer on metal-containing pad and including top surface and cavity, cavity having side wall extending between metal-containing pad and top surface; and forming metal-containing protective shell in cavity. Methods may also include providing first, second, third and fourth metal-containing pads on first, second, third and fourth substrate surfaces; forming first metal-containing protective shell on first or second metal-containing pad; forming second metal-containing protective shell on third or fourth metal-containing pad; heating first metal-containing protective shell to form solder-bond between first and second substrate surfaces; and heating second metal-containing protective shell to form solder-bond between third and fourth substrate surfaces. | 01-08-2009 |
20090007135 | APPARATUS AND METHOD FOR SERVER NETWORK MANAGEMENT TO PROVIDE ZERO PLANNED RETROFIT DOWNTIME - Methods and systems are presented for updating software applications in a processor cluster, in which the cluster is divided into first and second processor groups and the first group is isolated from clients and from the second group with respect to network and cluster communications by application of IP filters. The first group of processors is updated or retrofitted with the new software and brought to a ready-to-run state while the second group is active to serve clients. The first group is then transitioned to an in-service state after isolating the then-active service providing application on second group. Thereafter, the second group of processors is offlined, updated or retrofitted, and transitioned to an in-service state to complete the installation of the new application version across the cluster with reduced or zero downtime and without requiring backward software compatibility. | 01-01-2009 |
20090006915 | APPARATUS AND METHOD FOR EMBEDDED BOUNDARY SCAN TESTING - Embedded boundary scan testing apparatus and methodologies are disclosed for testing processor-based circuit boards without processor intervention. A boundary scan controller is embedded in a circuit board along with a boundary scan chain having JTAG devices connected with an electrical circuit of the board. Upon power up, the boundary scan controller holds an on-board processor system in reset, loads boundary scan test vectors and commands from an on-board non-volatile memory, and runs boundary scan testing while holding the processor system in the reset state. The boundary scan controller preferably includes a test access port controller that implements only a subset of the JTAG standard 16 machine states to optimize performance and minimize controller hardware. The test results may be stored in an externally accessible on-board memory for subsequent retrieval in order to facilitate board troubleshooting and/or repair, where the provision of on-board boundary scan testing allows testing of boards while installed in the field, and the embedded scan controller allows field testing of on-board processor systems and related circuitry to enhance the test coverage over processor-driven boundary scan testing. | 01-01-2009 |
20090005119 | METHOD AND SYSTEM FOR ASSESSING WIRELESS COMMUNICATION QUALITY IN A COMMUNICATIONS NETWORK - Methods and systems are presented for assessing wireless communication quality in a communications network, in which a network application broadcasts reporting criteria to base stations in the network that requests reporting of RF signal strength from powered RF devices, and the base stations send messages to RF devices to request the RF devices to RF quality information according to the reporting criteria. The base station sends reported RF quality information to the network application, which processes the reported information to provide an assessment of RF network quality for all or a subset of the RF coverage areas served by the network. | 01-01-2009 |
20090003844 | HIGH SPEED OPTOELECTRONIC RECEIVER - A novel 100+ Gbit/s opto-electronic receiver uses hybrid integration of a photodiode and a demultiplexer. The photodiode converts a high speed optical data stream to an electrical data stream that is input to an electronic demultiplexer. The photodiode and the demultiplexer are connected together by a novel planar microwave transmission structure. | 01-01-2009 |
20090003830 | LOSS OF SIGNAL DETECTION - An apparatus and a method for accurately detecting Loss of Optical Power (LOS) by noise power cancellation effect and optical power is measured at two output ports of an athermal periodic filter, wherein one output port in the optical frequency domain, is aligned with the signal channels of an input WDM signal (on-grid port), whereas the second output port is aligned complementary to the first output port (off-grid port). In a preferred embodiment, the apparatus computes the ratio of the measured optical powers at the two output ports of the periodic filter, and comparing them to a threshold value that is determined from the overall common-mode rejection ratio (CMRR) of the detection apparatus. In an alternative embodiment, the apparatus additionally compares the optical power measured at the on-grid port to a threshold power that is determined from system design parameters. | 01-01-2009 |
20090003701 | METHOD AND APPARATUS FOR APPLYING STEGANOGRAPHY TO DIGITAL IMAGE FILES - A method and apparatus for applying steganography to digital image files are provided. This algorithm uses the basic idea of steganography. In one aspect of the invention a method is provided. The method comprises (a) taking a text message as input, (b) breaking up the input data into a series of bits, and (c) passing it to an encryption mechanism to merge into a bit map image. Thus, less important information from a bit map image is removed and hidden data (series of bits) is injected in its place. It is thus possible to (a) retrieve the entire bit map file, (b) remove its header information, (c) retrieve each byte one by one and (d) put the input data in each byte. | 01-01-2009 |
20090003621 | SOUND-DIRECTION DETECTOR HAVING A MINIATURE SENSOR - A representative embodiment of the invention provides a sound-direction detector having a miniature sensor coupled to a signal-processing block. The sensor has (i) a microphone responsive to a sound wave and (ii) a differential pressure sensor (DPS) responsive to a pressure difference induced by the sound wave between two inlet ports located in proximity to the microphone. The signal-processing block applies phase-sensitive detection to the output signal generated by the DPS, while using the output signal generated by the microphone as a reference for the phase-sensitive detection, to measure the pressure difference. The signal-processing block then determines direction to the sound-wave source based on the amplitude of the sound wave at the microphone and the measured pressure difference. | 01-01-2009 |
20090003541 | NETWORK-HOSTED SERVER, A METHOD OF MONITORING A CALL CONNECTED THERETO AND A NETWORK-HOSTED VOICEMAIL SERVER - The present invention provides a network-hosted server, a method of monitoring a call connected to a network-hosted server and a network-hosted voicemail server associated with a called party. In one embodiment, the network hosted server includes: (1) a call-alerter configured to provide an indication to a called party when a call between a calling party and the network-hosted server is established and (2) a call monitor coupled to the call-alerter and configured to establish a one-way connection of the call between the server and the called party to allow the called party to monitor the call in progress. | 01-01-2009 |
20090003388 | METHOD AND APPARATUS FOR SYNCHRONIZING PORTED NUMBER DATA - A method of synchronizing ported number data within a telecommunications network in which a number portability administration center has received a request from a subscriber having a directory number (DN) to port is provided. The method comprises the steps of: a Number Portability data manager sending a subscription request to the NPDB to receive future notifications about subscriber ports to/from specific Location Routing Number(s); the NPDB honoring these subscriptions when a user ports their DN. If this is the initial LRN assigned to the DN, then the NPDB derives the LRN of the code holder. If the LRN from which the subscriber ported has a subscription, then the NPDB sends a notification message to the NP data manager with which the LRN is associated indicating that the DN ported out. If the LRN to which the subscriber ported has a subscription, then the NPDB sends a notification message to the NP data manager with which the LRN is associated indicating that the DN ported in. The method further comprises receiving a notification message for the LRN at a number portability data manager, wherein: if the notification message indicates that a DN has ported in, then the number portability data manager sends a request to an ENUM (telephone number mapping) server to turn the entry for that DN on; and if the notification message indicates that a DN has ported out, then the number portability data manager sends requests to the ENUM server and to a subscriber database to turn the entry for that DN off. | 01-01-2009 |
20090002949 | HEAT TRANSFER FOR ELECTRONIC COMPONENT VIA AN ELECTROMAGNETIC INTERFERENCE (EMI) SHIELD HAVING SHIELD DEFORMATION - In one embodiment, an apparatus having an electromagnetic interference (EMI) shield for an electronic component. The EMI shield and the electronic component are adapted to be assembled onto a circuit board. The EMI shield provides EMI shielding for the electronic component. The EMI shield includes a thermally conductive material, such as a metal. The EMI shield is deformed, e.g., with a dimple or a tab, to form a contacting portion to contact the electronic component. After the assembly of the EMI shield and the electronic component onto the circuit board, the contacting portion of the EMI shield contacts the electronic component, thereby allowing conductive transfer of thermal energy between the electronic component and the EMI shield and enhanced heat dissipation for the electronic component. | 01-01-2009 |
20090002118 | MEMS DEVICE WITH BI-DIRECTIONAL ELEMENT - The present invention provides a bi-directional microelectromechanical element, a microelectromechanical switch including the bi-directional element, and a method to reduce mechanical creep in the bi-directional element. In one embodiment, the bi-directional microelectromechanical element includes a cold beam having a free end and a first end connected to a cold beam anchor. The cold beam anchor is attached to a substrate. A first beam pair is coupled to the cold beam by a free end tether and is configured to elongate when heated thereby to a greater temperature than a temperature of the cold beam. A second beam pair is located on an opposing side of the cold beam from the first beam pair and is coupled to the first beam pair and the cold beam by the free end tether. The second beam pair is configured to elongate when heated thereby to the greater temperature. | 01-01-2009 |
20080318551 | METHOD AND APPARATUS FOR PROVISIONING AND AUTHENTICATION/REGISTRATION FOR FEMTOCELL USER ON IMS CORE NETWORK - A method for provisioning, registering and authenticating a mobile phone on a basestation is provided. The method includes receiving an addition request for the addition of a mobile station to a basestation authorization record via an interface. The method continues with creating an entry for the mobile station, where the entry includes mobile station information, and receiving a registration request including request information from the mobile station to register to receive basestation based services via the associated internet multimedia subsystem network. The method also includes authorizing registration on the IMS network based at least in part on the request information. | 12-25-2008 |
20080316976 | METHOD AND APPARATUS FOR SIGNALING INTERWORKING CDMA 3G1x MOBILES AND EVDO MOBILES WITH AN IMS CORE NETWORK - A basestation 3G1x network architecture which is used to convert 3G1x control and signaling to IMS/SIP in basestation is disclosed. The system includes a user agent that bi-directionally translates between SIP messaging and CDMA messaging. The system also includes a 1x basestation emulator which may act as an interface for the 3G1x handset. The basestation emulator is also configured to terminate CDMA mobile protocol and interconnect messages and operations with the user agent. The methods include mapping between the CDMA mobile message and the SIP message through the basestation emulator and the SIP user agent. The method may facilitate basestation origination and termination as well as feature services. These feature services may include three way calling, call waiting and call waiting with caller identification. | 12-25-2008 |
20080316563 | STRUCTURE FOR PROTECTING FEATURES DURING THE REMOVAL OF SACRIFICIAL MATERIALS - The present invention provides an apparatus. The apparatus, may include an actuator located over a substrate, a movable feature located over and coupled to the actuator, and a layer of material located above the actuator and movable feature and not constituting part of a beam/spring associated with the movable feature, the layer of material configured as a reservoir having an interior capable of holding a liquid, the movable feature being exposed to the interior. | 12-25-2008 |
20080315099 | DETECTOR OF INFRARED RADIATION HAVING A BI-MATERIAL TRANSDUCER - A representative embodiment of the invention provides an infrared (IR) detector having a movable plate supported at an offset distance from a substrate by a suspension arm. In response to a temperature difference between the plate and the substrate generated by the incident IR radiation, the suspension arm deforms and changes the offset distance for the plate. In one embodiment, the suspension arm has three rod-shaped bimorph transducers that lie within a plane that is parallel to the substrate. The transducers are also parallel to one another, with the transducer that is attached to an anchor of the suspension arm being located between the two transducers that are attached to the plate. | 12-25-2008 |
20080310114 | HEAT-TRANSFER DEVICE FOR AN ELECTROMAGNETIC INTERFERENCE (EMI) SHIELD USING CONDUCTIVE BRISTLES - In one embodiment, an apparatus for electronic equipment has a bristle pad having an anchor end and a free end, wherein the bristle pad has a plurality of flexible bristles each having an anchor end corresponding to the anchor end of the bristle pad and a free end corresponding to the free end of the bristle pad. The bristle pad is adapted to be placed between an electronic component and an electromagnetic interference (EMI) shield for the electronic component, wherein the EMI shield provides EMI shielding for the electronic component. The plurality of flexible bristles are adapted to provide a conductive thermal path between the electronic component and the EMI shield, and one or more of the flexible bristles are adapted to flex when the RF shield is attached to a circuit pack. | 12-18-2008 |
20080305801 | METHOD AND APPARATUS TO ALLOW HAND-OFF FROM A MACROCELL TO A FEMTOCELL - A method for hand-off of a CDMA access mobile from a macrocell to a femtocell is disclosed. The method includes tracking each femtocell which mobile stations have allowed access incorporating a mobile station identification for each of the mobile stations. The method continues with storing the mobile station identification for each femtocell. This may occur in a database or similar structure. The message continues on with requesting a hand-off from the macrocell to the femtocell via PN offset and the method concludes with querying all femtocells that have that PN offset that are within range of the macrocell's neighbor list. If only one femtocell fits that criteria the method is done. If more than one femtocell fits that criteria, a priority list may be set up based at least in part on the number of times and/or frequency that the mobile station has been allowed access on the femtocell. The method could include allocating resources for all high priority femtocells and cleaning up resources for the femtocells that do not send a hand-off complete message. | 12-11-2008 |
20080304462 | SESSION INITIATION PROTOCOL/INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM BASED ARCHITECTURE FOR SUPPORTING 3G1x VOICE/DATA - A core network architecture for supporting an internet protocol based network is disclosed. The system includes a base station which is configured to convert a signal from a first network to an internet protocol network signal and send the converted signal through the internet protocol base network. The network also includes a gateway which is configured to receive the converted signal and deploy the converted signal through the internet protocol base network. In this sense, the internet protocol base network manages the call mobility and delivery of the signal. The base station in this disclosure may be a femto base station and the first network may be a code division multi-access (CDMA) network. | 12-11-2008 |
20080304451 | METHOD TO ALLOW HAND-OFF OF A CDMA MOBILE FROM IMS FEMTOCELL TO CIRCUIT MSC - A method for hand-off of a cell division multi-access mobile from an internet protocol base network to a circuit mobile switching center is disclosed. The system includes determining whether a hand-off is appropriate based at least in part on signal strength of a call for a mobile unit. The method continues with sending a message indicating that the mobile identification of the mobile unit and a target cell locating the circuit identification of a circuit that is available to support a hand-off. The method continues on with allocating the circuit and reconfiguring the mobile unit to a macrocell (CDMA access network) and legacy MSC via the circuit. | 12-11-2008 |
20080298760 | Thermally Stabilized Waveguides - An apparatus comprising a planar optical waveguide having an optical core and optical cladding next to the optical core. The optical core or cladding includes a plurality of particles therein. Each particle has a nucleus and polymeric molecules permanently bonded to the nucleus to form a shell. A plurality of nuclei are dispersed in said core or cladding. | 12-04-2008 |
20080284028 | INTEGRATED DEVICE FABRICATED USING ONE OR MORE EMBEDDED MASKS - A device fabricated using a multi-layered wafer that has an embedded etch mask adapted to map a desired device structure onto an adjacent (poly)silicon layer. Due to the presence of the embedded mask, it becomes possible to delay the etching that forms the mapped structure in the (poly)silicon layer until a relatively late fabrication stage. As a result, flatness of the (poly)silicon layer is preserved for the deposition of any necessary over-layers, which substantially obviates the need for filling the voids created by the structure formation with silicon oxide. | 11-20-2008 |
20080277252 | Mechanical switch - Apparatus including a substrate and a mechanical switch, the mechanical switch located over the substrate, the mechanical switch including: a first electrical contact over the substrate; a support over the substrate, the support including a region moveable relative to the first electrical contact, the moveable region having a second electrical contact, the second electrical contact located over the first electrical contact; and a self-assembled molecular layer between the substrate and the second electrical contact. Method including placing into operation an apparatus, and applying a coulomb force causing the second electrical contact to move relative to the first electrical contact such that the switch is opened or closed. | 11-13-2008 |
20080273689 | TONE ADVISOR, A TONE ASSISTING SYSTEM AND A METHOD OF ASSOCIATING TONES WITH CALLERS - A tone advisor, a tone assisting system and a method of associating tones with callers. In one embodiment the method includes: (1) monitoring calls to and from a user, (2) obtaining information based on the calls and (3) categorizing a caller associated with at least one of the calls into a contact group according to the information and (4) assigning a genre of tones to the contact group. | 11-06-2008 |
20080273281 | LIQUID SWITCH - An apparatus comprising a liquid switch. The liquid switch comprises a substrate having a surface with first and second regions thereon and a fluid configured to contact both of the regions. The regions each comprise electrically connected fluid-support-structures, wherein each of the fluid-support-structures have at least one dimension of about 1 millimeter or less. The regions are electrically isolated from each other. | 11-06-2008 |
20080272306 | PNEUMATIC INFRARED DETECTOR - An infrared (IR) radiation detector adapted to detect IR radiation by measuring pneumatic expansion of a sense chamber that is caused by a temperature increase within that chamber due to the absorbed energy of the IR radiation. A reference chamber mechanically coupled to the sense chamber controls the pneumatic expansion of the sense-chamber. The expansion is detected either electrically or optically. | 11-06-2008 |
20080258978 | STRIP-ARRAY ANTENNA - A representative embodiment of the invention provides an antenna having an electrically conducting ground plane and an array of electrically conducting strips located at an offset distance from the ground plane. Electrically conducting pathways, each attached to the middle portion of the corresponding strip, connect the strips to the ground plane. Electrically conducting lips, each attached to an edge of the corresponding conducting strip, extend about halfway toward the ground plane. The size of the array is smaller than the wavelength of the fundamental radiation mode supported by the antenna. Advantageously, the antenna has a bandwidth about three times larger than that of a comparably sized prior-art patch antenna. | 10-23-2008 |
20080242062 | FABRICATION OF DIVERSE STRUCTURES ON A COMMON SUBSTRATE THROUGH THE USE OF NON-SELECTIVE AREA GROWTH TECHNIQUES - Diverse semiconductor structures are fabricated on a single substrate or wafer by using a non-selective area growth technique involving deposition of material over the entire substrate. The fabricated structures are obtained by selective removal of portions of the deposited material layers. Single level and multi-level structures are possible. | 10-02-2008 |
20080232315 | METHOD OF MANAGING COEXISTING PACKET STREAMS - The invention concerns a method of managing coexisting packet streams ( | 09-25-2008 |
20080232314 | METHOD OF PROVIDING A VoIP CONNECTION - This invention concerns a method of providing a VoIP connection through wireless communication links of a packet-based wireless communication system, and a corresponding base station and terminal. The wireless communication links comprise an uplink transmission path ( | 09-25-2008 |
20080231944 | OPTICAL EQUALIZATION OF MULTI-LEVEL SYMBOL CONSTELLATIONS - A method of optically equalizing a multi-level (amplitude or phase) optical signal through the effect of an optical equalizer wherein the optical equalizer (OEQ) is placed at either a transmission end or a receiver end of the optical communications link and a tap delay characteristic of the OEQ need not be determined by symbol spacing, rather it may advantageously be adjusted to desirably compensate non-linear mapping performed in the modulation process or simultaneous operation on a plurality of wavelength division multiplexed (WDM) channels. | 09-25-2008 |
20080231933 | OPTICAL MODULATOR - A driving circuit and Mach-Zehnder EAM optical modulator exhibiting negligible chirp that generates a PSK signal when driven by a single drive signal. Two such Mach-Zehnder EAM optical modulators and drive circuits may be configured in parallel, thereby generating DQPSK signals with only two drive signals, one for each individual Mach-Zehnder EAM modulator. | 09-25-2008 |
20080220755 | Time of day warning for calls to roaming mobile phones - The present time of day warning system provides the subscriber with the ability to designate at least one time interval during the course of the day when the subscriber prefers not to receive calls on their mobile phone unless these incoming calls are of an urgent nature. In this system, if the subscriber has enrolled in the Time Of Day Warning Service and their mobile phone is turned on, when someone attempts to call the subscriber, the mobile phone system determines the present time of day at the subscriber's present location. If the incoming call is attempted during one of the subscriber-designated blackout time intervals, the incoming call is intercepted. The calling party receives a recorded message which indicates the present time at the subscriber's present location and an indication that the subscriber is not taking calls at this time. | 09-11-2008 |
20080219614 | SEMICONDUCTOR OPTICAL MOTULATOR - Semiconductor optical modulator devices exhibiting improved chirp characteristics are constructed from a Mach-Zehnder structure having resonators positioned within each arm and a number of phases shifters positioned within the arms, and/or resonators. | 09-11-2008 |
20080219303 | Color mixing light source and color control data system - Apparatus including a color mixing light source having a first laser configured to lase at one or a plurality of light emission wavelengths of 459 nanometers or less and a second laser configured to lase at one or a plurality of light emission wavelengths of 470 nanometers or more; and a controller having a color control data input and a color control data output configured to cause the color mixing light source to generate a perceptual mixture of light having a perceptual color, the perceptual mixture including light emissions from the first and second light sources. System configured to map first color control data to second color control data. Method of forming a perceptual mixture of light having a perceptual color. Method of converting color control data. | 09-11-2008 |
20080219181 | HIGH-SPEED TRAFFIC MEASUREMENT AND ANALYSIS METHODOLOGIES AND PROTOCOLS - We formulate the network-wide traffic measurement/analysis problem as a series of set-cardinality-determination (SCD) problems. By leveraging recent advances in probabilistic distinct sample counting techniques, the set-cardinalities, and thus, the network-wide traffic measurements of interest can be computed in a distributed manner via the exchange of extremely light-weight traffic digests (TD's) amongst the network nodes, i.e. the routers. A TD for N packets only requires O(loglog N) bits of memory storage. The computation of such O(loglog N)-sized TD is also amenable for efficient hardware implementation at wire-speed of 10 Gbps and beyond. Given the small size of the TD's, it is possible to distribute nodal TD's to all routers within a domain by piggybacking them as opaque data objects inside existing control messages, such as OSPF link-state packets (LSPs) or I-BGP control messages. Once the required TD's are received, a router can estimate the traffic measurements of interest for each of its local link by solving a series of set-cardinality-determination problems. The traffic measurements of interest are typically in form of per-link, per-traffic-aggregate packet counts (or flow counts) where an aggregate is defined by the group of packets sharing the same originating and/or destination nodes (or links) and/or some intermediate nodes (or links). The local measurement results are then distributed within the domain so that each router can construct a network-wide view of routes/flow patterns of different traffic commodities where a commodity is defined as a group of packets sharing the same origination and/or termination nodes or links. After the initial network-wide traffic measurements are received, each router can further reduce the associated measurement/estimation errors by locally conducting a minimum square error (MSE) optimization based on network-wide commodity-flow conservation constraints. | 09-11-2008 |
20080212913 | HIGH SPEED SEMICONDUCTOR OPTICAL MODULATOR - The present invention provides an optical waveguide modulator. In one embodiment, the optical waveguide modulator includes a semiconductor planar optical waveguide core and doped semiconductor connecting paths located adjacent opposite sides of the core and capable of applying a voltage across the core. The optical waveguide core and connecting paths form a structure having back-to-back PN semiconductor junctions. In another embodiment, the optical waveguide modulator includes a semiconductor optical waveguide core including a ridge portion wherein the ridge portion has at least one PN semiconductor junction located therein. The optical waveguide modulator also includes one or more doped semiconductor connecting paths located laterally adjacent the ridge portion and capable of applying a voltage to the ridge portion. | 09-04-2008 |
20080212034 | SPECKLE REDUCTION IN LASER-PROJECTOR IMAGES - A laser projector having a configurable spatial light modulator (SLM) adapted to display various spatial modulation patterns and redirect illumination from a laser to form an image on the viewing screen. The laser projector drives the SLM to change spatial modulation patterns at a rate that causes the corresponding sequence of projected images to fuse to mitigate appearance of speckle in the resulting fused image. The SLM can be designed to redirect the illumination using either diffraction or specular reflection of light from the displayed spatial modulation pattern. In one embodiment, the SLM is a MEMS device having an array of individually addressable mirrors supported over a substrate and adapted to move (e.g., translate and/or rotate) with respect to the substrate. | 09-04-2008 |
20080204558 | SECURITY SYSTEM TRIGGERED BY HEART RATE DETECTION - A security system is provided for a facility ( | 08-28-2008 |
20080199191 | MAXIMUM LIKELIHOOD SEQUENCE ESTIMATION FOR HIGH SPECTRAL EFFICIENCY OPTICAL COMMUNICATION SYSTEMS - Severe inter-symbol interference (ISI), introduced by narrow-band optical filtering in high spectral efficiency wavelength-division multiplexed (WDM) systems to avoid coherent WDM crosstalk, can be substantially mitigated by the use of maximum-likelihood sequence estimation (MLSE) reception. Compared to conventional threshold detection, the use of an MLSE receiver allows, for example, a 22% reduction in optical receive filter bandwidth. For tight optical filtering, the MLSE receiver benefits from taking into account noise correlation. MLSE receivers with one and with two samples per bit are described and it is shown that while oversampling is beneficial for wide-band optical filters, the benefit goes away for narrow-band optical filtering, thereby facilitating MLSE design for rates beyond 10 Gb/s. | 08-21-2008 |
20080197347 | Active organic semiconductor devices and methods for making the same - Techniques for disposing an organic semiconductor film on a receiver substrate, comprising the steps of: depositing an organic semiconductor film onto a donor substrate, the semiconductor film having a first surface facing the donor substrate and having an exposed second surface; bringing the exposed second surface adjacent a receiver substrate such that the semiconductor film is in contact with both substrates; and then, moving the donor and receiver substrates apart; and wherein a surface portion of the receiver substrate is maintained above its glass transition during the moving step. Active organic semiconductor devices. | 08-21-2008 |