18th week of 2009 patent applcation highlights part 32 |
Patent application number | Title | Published |
20090109977 | Method and Apparatus for Providing Call Admission Control for VOIP Over Wireless Local Area Networks Using a Transparent Proxy Agent - The invention includes a method and apparatus providing call admission control for a wireless local area network (WLAN). A method includes extracting call signaling information from call signaling messages exchanged between a first user terminal and a second user terminal for establishing a voice call, where the second user terminal is being served by a wireless access point, and propagating a quality-of-service request toward the wireless access point which may be used by the wireless access point for determining whether or not to accept the voice call. The quality-of-service request includes at least one quality-of-service parameter determined using the extracted call signaling information. The at least one quality-of-service parameter is adapted for use by the wireless access point for determining whether or not to accept the voice call. The wireless access point then provides an indication as to whether it has accepted the voice call (in which case the voice call is completed) or whether it has rejected the voice call (in which case some other call handling may be applied to the voice call). | 2009-04-30 |
20090109978 | Application interface for global mobile message delivery - A device, system, and method are directed towards communicating mobile information over a network. A mobile message (MM) is generated by an Internet Protocol (IP) enabled application interface. The MM may include advertising information. The MM is received at a routing server and comprises a destination phone number and/or advertising information. If the MM is determined to be locally processed, the routing server selectively routes the MM to a destination carrier associated with the destination phone number. If the MM is determined to be remotely processed, the MM is recursively forwarded until the MM reaches another routing server associated with the destination phone number. The other routing server is configured to selectively route the MM to the destination carrier. A response MM may be received at a boundary routing server. The response MM may be sent to the API if at least a portion of the response MM matches information associated with the MM. | 2009-04-30 |
20090109979 | SYSTEM AND METHOD FOR A MOBILE ACCESS FEMTOCELL - A system and method for wireless communication indoors includes a femtocell base station coupled for operable interaction with an in-building router having a virtual private network server client connection embedded therein. A user equipment unit within range of the femtocell base station for interaction therewith cooperates with a virtual private network server, an internet protocol network, and a cellular network to provide improved wireless coverage and quality of service indoors. | 2009-04-30 |
20090109980 | METHOD AND SYSTEM TO USE, SHARE AND MANAGE DIGITAL CONTENT BY ASSIGNING MAC AND IP ADRESS TO EACH DEVICE AND PERIPHERAL - The invention shows a method for connecting and sharing content over a plurality of devices, and over a plurality of networks public and private while respecting the content's Digital Rights by implementing a software layer (software alternately integrated into hardware component) that will assign a mac address and an ip address to each device and peripherals and where content can be assign to specific devices inside a network, and can be accessed directly, shared remotely, wireless, or physically connected. The software layer also integrates drivers, players, codec's that can be updated dynamically in order to keep them updated. This software layer can also “virtualizes” peripherals, devices or group of peripherals and devices into single addressable group of components that will act like one. | 2009-04-30 |
20090109981 | Out-of-band management for broadband over powerline network - A management system for broadband over power lines is disclosed, using wireless communications interfaced with broadband over power lines management components to establish a wireless out-of-band system management network. | 2009-04-30 |
20090109982 | System and Method for Associating an End User for Billing in a Network Environment - In one embodiment, a method includes receiving one or more packets of a communication session from one or more interfaces, such that the interface is a subscriber interface or a network interface. The method further includes associating the communication session to an end user with a source Internet Protocol (IP) address of the packet if the packet is received from the subscriber interface or to an end user with a destination IP address of the packet if the packet is received from the network interface. | 2009-04-30 |
20090109983 | System and Method for Billing End Users in a Peer-to-Peer Transaction in a Network Environment - A method for billing end users in a peer-to-peer transaction in a network environment is provided that includes a client services packet gateway operable to communicate with a first end user and a second end user in order to facilitate the peer-to-peer transaction and a flow manager element operable to receive one or more packets of the peer-to-peer transaction from one or more interfaces, such that the interface is a subscriber interface or a network interface. The flow manager is further operable to associate a first session object with the first user and associate a second session object with the second user. | 2009-04-30 |
20090109984 | WIRELESS DEVICE WITH FLASH CACHE AND BOOT FROM DOCK - A device is docked to a docking station. The docking station is coupled to a wired network. Code is obtained through the wired network. The code is executed on the device to enable the device to couple to a wireless network. | 2009-04-30 |
20090109985 | Packet forwarding device - A power-saving packet forwarding device realizing electric power that accords to the number of lines in which communication is performed and a traffic volume inputted from the lines. A header processing unit with which the packet forwarding device is equipped has a plurality of packet processing circuits for performing a packet processing. A line number decision circuit monitors the number of lines in which communication is performed and a traffic volume inputted from the line, and decides presence or absence of an operation of a packet processing circuit. Based on this decision result, a power supply and a clock of the packet processing circuit that does not need to operate are interrupted, and accordingly power saving of the packet forwarding device is realized. | 2009-04-30 |
20090109986 | SYSTEM AND METHOD FOR RESELECTION OF A PACKET DATA NETWORK GATEWAY WHEN ESTABLISHING CONNECTIVITY - A network control module includes an access module that determines whether a first packet data network gateway communicating with a first packet data network also communicates with a second packet data network. The network control module also includes a selection control module in communication with a mobile wireless terminal. The mobile wireless terminal attempts to access the second packet data network by establishing a connection with a second packet data network gateway that communicates with the second packet data network. In response to the access module determining that the first packet data network gateway also communicates with the second packet data network, the selection control module commands the mobile wireless terminal to access the second packet data network through the first packet data network gateway. | 2009-04-30 |
20090109987 | ENHANCED MEDIA GATEWAY NEGOTIATION - A method and system of negotiating Media Gateways (MGs) between a plurality of call control nodes (CCNs). The system includes an originating CCN which builds an original list of configured Media Gateways capable of being used in a call by the originating CCN. The first CCN associates an identifier and a priority with each Media Gateway in the list prior to sending the list to a subsequent CCN. The subsequent CCN removes from the original list any identifiers associated with any MG in the original list of identifiers which is not capable of being used in the call by the subsequent CCN. The subsequent CCN then forms a modified list of identifiers associated with at least one MG capable of being used in a call by the originating CCN and the subsequent CCN. The subsequent CCN also selects a specified MG from the modified list and sends a first backward message from the second CCN to the originating CCN identifying the specified MG. The originating CCN may then validate that the specified MG is on the original list of identifiers and selects the specified MG for the call. | 2009-04-30 |
20090109988 | Video Decoder with an Adjustable Video Clock - A method, an apparatus, and logic encoded in a computer-readable medium to carry out a method. The method includes receiving packets containing compressed video information, storing the received packets in a buffer memory, timestamping the received packets according to an adjustable clock; and removing packets from the buffer for decoding and playout of the video information, the removing according to playback order and at a time determined by the adjustable clock. The method includes adjusting the adjustable clock from time to time according to a measure the amount of time that the packets reside in the buffer memory, such that time latency caused by the buffer memory is limited. An overrun or an underrun of the buffer memory is unlikely. | 2009-04-30 |
20090109989 | LINKING CROSS BAR CONTROLLER - A method for transferring data includes connecting N ports of a crossbar to N devices, respectively, where N is an integer greater than one. Inbound data is received at one of the N ports from a respective one of the N devices. Dedicated connections are provided between an input buffer of one of the N ports and N-1 output buffers associated with others of the N ports, respectively. At least one of the N-1 output buffers of the others of the N ports is selected to output outbound data corresponding to the inbound data. The inbound data from the input buffer of one of the N ports is selectively transferred to at least one of the N-1 output buffers of the others of the N ports. | 2009-04-30 |
20090109990 | COOPERATIVE CSMA MODE IDENTIFICATION IN CLUSTERED NETWORKS - In one embodiment, a sensing device ( | 2009-04-30 |
20090109991 | NULL INDICATION IN A SHARED ROBUST SCHEME - A method implemented on a network node includes receiving an adjustable schedule of transmission start slots, the slots representing opportunities for initiating data transmission by at least one network device on a network, transmitting an expected duration indication in each slot associated with the network node as per the schedule, and adjusting the schedule in accordance with the expected duration for each transmission. A method for virtual carrier sensing includes receiving a schedule of transmission start slots on a network node, the slots representing opportunities initiating data transmission by at least one network device in a network, listening for transmissions by other network nodes according to the schedule, the transmissions indicating an expected length of a current transmission, adjusting the schedule in accordance with the indicating of a data transmission, and ignoring any subsequent transmissions until a next scheduled transmission start slot in accordance with the adjusted schedule. | 2009-04-30 |
20090109992 | CONTENTION SLOTS IN A SHARED ROBUST SCHEME - A method includes receiving a schedule of transmission start slots on a network node, the slots representing reserved and/or nonreserved opportunities for initiating data transmission by at least one network device in a network, the reserved opportunities associated with specific network devices, and the non-reserved opportunities available for non-reserved use by any network device on the network, and adjusting the schedule in accordance with successful transmissions by other network nodes. Another method includes generating a schedule of transmission start slots on a master node, where the slots represent reserved and/or nonreserved transmission initiation opportunities for the initiation of data transmission by at least one of a plurality of network devices in a network, the reserved opportunities being associated with specific network nodes, and the nonreserved opportunities being available for nonreserved use by any the network devices on the network, and distributing the schedule to the network devices. | 2009-04-30 |
20090109993 | Method and Device for Resolving Collision in a Wireless Telecommunications Network - This contention resolution method can be used in a station having a data packet to send in a wireless telecommunications network, which packet is sent (F | 2009-04-30 |
20090109994 | FLOOR CONTROL IN A COMMUNICATION SYSTEM | 2009-04-30 |
20090109995 | AD HOC WIRELESS NETWORKING - A software architecture providing ad hoc wireless networking capabilities. The software architecture may be compatible with wireless devices, such as UWB devices operating according to the WLP communication protocol. The software architecture may include user mode and kernel mode modules, and may include a multiplexing driver framework to enable system connection to multiple ad hoc networks. | 2009-04-30 |
20090109996 | Network on Chip - A network on chip (‘NOC’) that includes integrated processor (‘IP’) blocks, routers, memory communications controllers, and network interface controllers, with each IP block adapted to a router through a memory communications controller and a network interface controller, where each memory communications controller controlling communications between an IP block and memory, and each network interface controller controlling inter-IP block communications through routers. | 2009-04-30 |
20090109997 | CHANNEL BONDING RECEIVING APPARATUS AND METHOD FOR EXPANDING CHANNEL BONDING RECEIVING BAND - Provided is a channel bonding receiving apparatus and method for expanding a channel bonding receiving band in a cable modem. The channel bonding receiving apparatus includes a channel bonding dividing unit for dividing a channel bonding broadband signal into a plurality of band signals and extracting a corresponding channel bonding signal from each of the divided band signals; and a channel routing unit for routing each of the extracted channel bonding signals to a corresponding demodulator. | 2009-04-30 |
20090109998 | Facilitating self configuring link aggregation using link aggregation control protocol - A switch discovers active neighboring peer devices of a switch. Such discovery includes facilitating communication of Link Aggregation Control Protocol Data Units (LACPDUs) for identifying a unique peer identifier assigned to each one of the neighboring peer devices. In response to discovering the active neighboring peer devices, the switch automatically assigning a link aggregation key to each one of a plurality of physical links over which the switch and one of the active neighboring peer devices communicate respective ones of the LACPDUs. Thereafter, the switch facilitates logically aggregation all of the physical links dependent upon the link aggregation key. | 2009-04-30 |
20090109999 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Provided is a wireless communication apparatus by which the maximum throughput can be obtained while satisfying required reception qualities in multicarrier communication. In the apparatus, a coding section ( | 2009-04-30 |
20090110000 | Apparatus and a method for distributing bandwidth - A method and an apparatus for distributing bandwidth, on one or more first ports having a maximum bandwidth, the bandwidth usage being monitored and compared to a percentage of the maximum bandwidth. If the bandwidth usage at the first port(s) exceeds the percentage, a bandwidth of data received on the first port(s) and forwarded to a local user on one or more second port(s) being reduced so as to reduce the bandwidth of the data at the first port(s). | 2009-04-30 |
20090110001 | Method, Network Agent and Bandwidth Broker for Managing the Available Bandwidth for Connections Between Terminals of a Packet-Oriented Communication Network - A respective number of terminals are managed by network agents. When initializing a connection between two terminals, the network agent initializes the connection if the relevant terminals are arranged in the same bandwidth-uncritical area. If one of the terminals is arranged in a bandwidth-critical area, the network agent ascertains the requested bandwidth and sends a resource request to an associated bandwidth broker, which uses a topology function and knowledge of bandwidth used by existing connections to check the availability of the requested bandwidth in the bandwidth-critical area of the communication network. The use of network agents and the fact that resource requests are no longer required in the communication network dynamically reduces the load on bandwidth brokers and superordinate bandwidth brokers to a significant extent. | 2009-04-30 |
20090110002 | BROADCAST RECEPTION APPARATUS, TS PACKET REPRODUCTION APPARATUS, BROADCAST RECEPTION METHOD AND PROGRAM - According to one embodiment, a broadcast reception apparatus includes a reception unit which receives a broadcast signal, and outputs a transport stream, a first determination unit which receives the transport stream as TS packets, and determines whether a PES header exists in each TS packet, a second determination unit which determines whether the PES header is normal, when the first determination unit detects the PES header, a search unit which detects a payload start position by searching the TS packet sequentially from the rear end, when the second determination unit determines the PES header to be abnormal, a separator which separates payloads at and after the payload start position, and a decoder which decodes the separated payloads of the TS packets, and outputs video and audio signals. | 2009-04-30 |
20090110003 | HANDLING IP DATAGRAM FRAGMENTS - Problems caused by Internet Protocol datagram fragmentation are solved by creating a session context for the datagram fragments without actually reassembling the datagram from its fragments. The session context enables treatment of the datagram without actually reassembling it. Processing fragments can be followed by forwarding the processed fragments to another node that can further fragment the IP datagram. | 2009-04-30 |
20090110004 | Time-domain gated filter for RF communication systems - A time domain filter receives a double sideband (DSB) input in the frequency domain and compresses this input into a time domain signal filtered by a time gate for providing a time filtered signal that is then expanded back into the frequency domain as a single sideband (SSB) output with one sideband being filtered by the time gate for translating DSB signals into SSB signals well suited for communicating chirped modulated signals as SSB signals along an electrical line or optical fiber without dispersive nulling of the communicated signal. | 2009-04-30 |
20090110005 | SWITCHING CIRCUIT AND SWITCHING METHOD - Timing control means receives a plurality of data that have been input in parallel and adjusts the timings of a plurality of the data so that data having the same destination do not exist at the same timing. Multiplexing means generates a multiple signal by multiplying the data whose timings have been adjusted in the timing control means by an orthogonal code that has been determined for each destination and then by multiplexing data being at the same timing together. Separating means extracts a datum for each destination from the multiple signal, by multiplying the multiple signal by an orthogonal code for each destination. | 2009-04-30 |
20090110006 | METHOD, APPARATUS AND SYSTEM FOR SENDING AND RECEIVING NOTIFICATION MESSAGES - A method, apparatus, and system for sending and receiving notification messages to synchronize notification messages with program streams accurately. The method for sending notification messages includes obtaining a notification message and a synchronization timestamp that are synchronous with a program, encapsulating the notification message into an RTP/RTCP packet corresponding to the synchronization timestamp, and sending the RTP/RTCP packet to a terminal. The method for decapsulating notification messages includes receiving an RTP/RTCP packet that carries a notification message and decapsulating the RTP/RTCP packet to obtain the notification message. Embodiments of the present disclosure synchronize a notification message with a program stream accurately by carrying the notification message in an RTP/RTCP packet. | 2009-04-30 |
20090110007 | SEAMLESS MULTIPLEXING OF EMBEDDED BITSTREAMS - A “seamless multiplexer,” as described herein, provides a flexible and efficient system and method for multiplexing embedded coded bitstreams. Further, unlike the conventional JPEG 2000 standard, the seamless multiplexer is capable of decoding multiplexed encoded bitstreams without the need to use a demultiplexing aide as overhead in the encoded signal. In general, the seamless multiplexer provides a novel approach for multiplexing code block bitstreams by using a “decoder pointer,” for multiplexing multiple embedded bitstreams without the use of a demultiplexing aide. Consequently, the seamless multiplexer not only reduces any multiplexing overhead, but also allows much smaller granularity of access in reshaping the compressed input signal. In addition, in one embodiment, the seamless multiplexer also uses dependencies between coefficient blocks to further improve overall compression efficiency. | 2009-04-30 |
20090110008 | Optical Fiber Pump Multiplexer - One or more single mode few-moded or multimode fibers are incorporated into a bundle to carry input to a fiber amplifier or output from a fiber amplifier or a fiber laser. The input is at the signal wavelength, which is the wavelength where amplification or lasing occurs. Each of the fibers in the bundle is cleaved individually or as a group and fiber ends are aligned in the same plane. The fiber amplifier or fiber laser may include a double clad fiber and the other fibers of the bundle couple light for cladding pumping. The device may also include a mode filter for controlling the output mode. | 2009-04-30 |
20090110009 | OPTICAL FIBER GRATING TUNING DEVICE AND OPTICAL SYSTEMS EMPLOYING SAME - A tuning device for an optical fiber grating includes a multi-part confinement member. The confinement member includes a feature such as a channel in which the fiber grating is disposed. Movement of the different parts of the confinement member relative to one another causes compression or tension of the fiber grating. The confinement member may include first and second slides. One end of the fiber is bonded to the first slide, the other end of the fiber is bonded to the second slide. The grating section of the fiber is confined in a channel formed by adjacent surfaces of the slides. The dimensions of the channel are selected such that the fiber grating is maintained in a relatively straight orientation without buckling when compression strain is applied to the fiber. An actuator may be employed to control the strain applied to the fiber, i.e., to axially compress or stretch the fiber grating by driving one or both of the slides in a controlled manner. The resonance wavelength of the fiber grating can be tuned as a function of the strain applied to the fiber. The confinement member may alternatively include deformable slides which axially deform, i.e., extend and retract so as to change in length. Each end of the fiber is affixed to both of the deformable slides so that axial compression or stretching of the fiber grating is achieved through deformation of the deformable slides. The fiber grating tuning device can be deployed in components such as tunable fiber lasers and tunable fiber filters. | 2009-04-30 |
20090110010 | FIBER-FOCUSED DIODE-BAR OPTICAL TRAPPING FOR MICROFLUIDIC MANIPULATION - The direct integration of light and optical control into microfluidic systems presents a significant hurdle to the development of portable optical trapping-based devices. A simple, inexpensive fiber-based approach is provided that allows for easy implementation of diode-bars for optical particle separations within flowing microfluidic systems. Models have also been developed that demonstrate the advantages of manipulating particles within flow using linear geometries as opposed to individually focused point traps as traditionally employed in optical-trapping micromanipulation. | 2009-04-30 |
20090110011 | OPTICAL COMPONENT FOR LASER BEAM - The present invention is to suppress deterioration of durability at the time when an optical component using a material optimized to be used in an optical path of a laser beam for performing reproduction/recording for a CD and a DVD is used in an optical head device using light sources including a blue semiconductor laser. A first transparent substrate | 2009-04-30 |
20090110012 | Method for Having Laser Light Source in Standby Status - When the laser light source is caused to standby, the temperatures of semiconductor laser | 2009-04-30 |
20090110013 | Multi-component wavelength conversion devices and lasers incorporating the same - According to one embodiment of the present invention, a frequency-converted laser source is provided wherein the wavelength conversion device comprises a plurality of waveguide components comprising respective input faces positioned in an effective focal field of the laser source. Individual ones of the waveguide components contribute different elements to a set of distinct wavelength conversion properties, defining a set of distinct wavelength conversion properties attributable to the waveguide components. The set of distinct wavelength conversion properties comprises properties representing phase matching wavelengths of the waveguide components, spectral widths of the waveguide components, conversion efficiency of the waveguide components, or combinations thereof. Additional embodiments are disclosed and claimed. | 2009-04-30 |
20090110014 | SMALL FORM FACTOR TRANSMITTER OPTICAL SUBASSEMBLY (TOSA) HAVING FUNCTIONALITY FOR CONTROLLING THE TEMPERATURE, AND METHODS OF MAKING AND USING THE TOSA - The invention is directed to an OSA having a TO-can-type configuration that is relatively low-cost to manufacture and that has functionality for monitoring and controlling the temperature of the laser diode without the need for additional pins or an increase in the size of the OSA. Thus, the OSA typically includes four or five pins at most. These features of the invention are achieved by providing a thermal control circuit, a temperature sensor and a heater that are integrated along with a laser output power monitor photodiode into the submount assembly substrate. | 2009-04-30 |
20090110015 | Current Driver And Power Control For Electrophotographic Devices - A laser driver comprises a plurality of current sources, including at least one bias current source and at least two drive current sources. To control the laser driver, a set of operating states is defined where each operating state corresponds to a desired laser output power level and a ratio is defined that establishes a relationship between a first desired laser output and a second desired laser output. A calibration operation samples laser output power of the laser source for less than all of the operating states, computes adjustments to the current levels of the current sources based at least in part upon the ratio such that sampled laser power levels converge towards their corresponding desired laser output level. The current sources are adjusted to their corresponding computed current levels. | 2009-04-30 |
20090110016 | Gas Laser Device - A gas laser device is presented that produces a near diffraction limited round beam exiting the discharge vessel. Through the use of a simple focusing system, additional waveguide strip and a spatial filter in conjunction with the new asymmetric hybrid planar waveguide resonator, a round diffraction limited beam can be produced exiting the discharge vessel. Furthermore, a second and very similar design is presented that allows for spatial filtering to take place directly outside of the discharge vessel, thereby enabling filtering of the beam to be an added option. | 2009-04-30 |
20090110017 | SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD OF MANUFACTURING THE SAME - A semiconductor light-emitting element includes a semiconductor layer including a light-emitting layer, a refractive index gradient layer provided on a light extraction surface of the semiconductor layer, and a holding substrate bounded to an outer surface of the refractive index gradient layer with an adhesion layer interposed therebetween. A refractive index of the refractive index gradient layer is changed continuously or stepwise in a film thickness direction such that a semiconductor-layer-side refractive index is substantially equivalent to a refractive index of the semiconductor layer and a holding-substrate-side refractive index is substantially equivalent to a refractive index of the holding substrate. The refractive index gradient layer is formed by vapor plating. | 2009-04-30 |
20090110018 | Laser diode expitaxial wafer and method for producing same - A laser diode epitaxial wafer has an n-type GaAs substrate, an n-type cladding layer formed on the n-type GaAs substrate, an active layer formed on the n-type cladding layer, and a p-type cladding layer formed on the active layer. The n-type cladding layer, the active layer, and the p-type cladding layer are formed of an AlGaInP-based material. The p-type cladding layer has carbon as a p-type impurity. The p-type cladding layer has a carrier concentration in the range of not less than 8.0×10 | 2009-04-30 |
20090110019 | TARGET MARKING SYSTEM HAVING A GAS LASER ASSEMBLY AND A THERMAL IMAGER - A handheld target marker is provided, wherein the target marker includes a housing retaining a gas laser, a collimating or focusing lens, a driver and a power supply. The laser produces a thermal infrared beam which can be selectively directed to impinge upon a target. The impinging beam is viewable by a thermal imager. The handheld target marker operates at ambient temperatures and incorporates the driver and power supply necessary for operation of the laser, wherein the beam can be pulsed for enhancing imaging on the thermal imager. | 2009-04-30 |
20090110020 | LIGHT EMITTING SYSTEM - A light emitting system is disclosed, including a light generator, a complex lens and an activating unit. The light generator provides a light beam emitted in a first direction in parallel to an optic axis. The complex lens, disposed on a path of the light beam, includes a plurality of micro structures for refracting the light beam. The activating unit includes an activating member coupled to the complex lens. The activating member activates the complex lens with an activation frequency to reciprocally move in a second direction alternate to the first direction. By the disposition of the complex lens, the energy of the light beam is uniformly distributed. Additionally, speckle produced by the light beam is reciprocally moved within an area by the activating unit, creating a photogene reaction, to successfully eliminate existence of the speckle. | 2009-04-30 |
20090110021 | Plasmon stabilized unimodal laser diodes - A device having a light cavity includes, at one end, a plasmonic reflector having a grating surface for coupling incoming light into traverse plasmon waves and for coupling the traverse plasmon wave into broaden light, the surface serving to redistribute light within the cavity, the reflector being well suited for use in laser diodes for redistributing filamental cavity laser light into spatially broaden cavity laser light for translating multimodal laser light into unimodal laser light for improved reliability and uniform laser beam creation. | 2009-04-30 |
20090110022 | THERMISTOR CIRCUIT CALIBRATION - Temperature detection circuitry is selectively coupled to a thermistor and one of two sources representing the impedance at respective ends of the expected range of temperature to which the thermistor is to be exposed. The offset of an amplifier and a scale factor to account for gain set of the amplifier are determined in an automatic calibration process while coupled to the source(s), and thereafter temperature readings are taken from the thermistor. During the calibration process, if the gain or scale factor are outside of expected ranges, a failure is determined and an alarm given and/or a heater is disabled. | 2009-04-30 |
20090110023 | BOLOMETRIC ON-CHIP TEMPERATURE SENSOR - Disclosed are embodiments of an improved on-chip temperature sensing circuit, based on bolometry, which provides self calibration of the on-chip temperature sensors for ideality and an associated method of sensing temperature at a specific on-chip location. The circuit comprises a temperature sensor, an identical reference sensor with a thermally coupled heater and a comparator. The comparator is adapted to receive and compare the outputs from both the temperature and reference sensors and to drive the heater with current until the outputs match. Based on the current forced into the heater, the temperature rise of the reference sensor can be calculated, which in this state, is equal to that of the temperature sensor. | 2009-04-30 |
20090110024 | TEMPERATURE COMPUTING INSTRUMENT AND METHOD FOR CALIBRATING TEMPERATURE OF SENSOR PART USED THEREFOR - A sensor part is provided with a printed circuit board that is made of resin and formed with a pair of electrically conductive metal patterns. Each of the pair of electrically conductive metal patterns includes: a first pattern part connected to a pair of electrodes of a temperature sensor; a second pattern part connected to a pair of conductive wires; and a connection part making a connection between the first and second pattern parts. The connection between the pair of electrodes of the temperature sensor and the first pattern part or between the pair of conductive wires and the second pattern part is made with the use of Dotite or solder. | 2009-04-30 |
20090110025 | APPARATUS AND METHOD FOR MEASURING THERMAL DIFFUSIVITY USING THE FLASH METHOD - The present invention relates to an apparatus and method for measuring thermal diffusivity using the flash method. The apparatus includes: a laser generator | 2009-04-30 |
20090110026 | EXPENDABLE IMMERSION DEVICE - An expendable immersion device for sensing characteristics of molten metal has a contact block and a receptacle tube. The contact block is slidingly disposed at least partially within a distal end of the receptacle tube. The expendable immersion devices includes a sensing element and a heat resistant tube. A distal end of the heat resistant tube is mounted to the sensing element. The sensing element extends partially into the interior of the heat resistant tube. A proximal end of the heat resistant tube is mounted over a distal end of the receptacle tube. A spring element is positioned over a proximal end of the contact block and abuts against the receptacle tube such that a force between the contact block and the sensing element is reduced when the heat resistant tube and sensing element are connected to the distal end of the contact block during assembly. | 2009-04-30 |
20090110027 | METHODS AND APPARATUS FOR A FULLY ISOLATED NPN BASED TEMPERATURE DETECTOR - Methods and apparatus for a fully isolated NPN-based temperature detector are disclosed. A disclosed method to determine the temperature of a circuit comprises generating a first current that increases as temperature increases, generating a second current that decreases as temperature increases, and detecting the temperature by receiving a first and second signal based on the first and second currents to determine whether the temperature exceeds at least one temperature threshold. | 2009-04-30 |
20090110028 | AUTO-RANGING THERMISTOR-BASED TEMPERATURE DETECTION SYSTEM - An apparatus for detecting temperature includes an adjustable current source operable for supplying a current, a thermistor coupled to said adjustable current source, and an auto-range hysteresis logic coupled to said thermistor and said adjustable current source operable for outputting a signal to control said adjustable current source by sensing a voltage across said thermistor. A method for detecting temperature is also disclosed. | 2009-04-30 |
20090110029 | DUAL POTTING TEMPERATURE PROBE - A temperature probe, such as for a respiratory system in which breathable gases are supplied to a patient, includes a housing having an external wall and an internal cavity defining an end and an internal cavity and further includes a temperature-responsive device in an area of the cavity near the end, such as in thermal communication with the external wall. A first potting compound that is deformable and/or has a relatively high thermal conductivity holds the temperature-responsive device in the cavity and a second potting compound having a relatively low thermal conductivity may be in the cavity behind the first potting compound. The housing may be made thin to enhance thermal conductivity, at least in the area containing the temperature-responsive device. | 2009-04-30 |
20090110030 | HIGH BANDWIDTH DATA TRANSPORT SYSTEM - A device for sending and receiving ultra wideband communications over a guided medium includes a line interface configured for electrical communication to the guided medium and adapted for interfacing with the guided medium, an ultra wideband impulse transmitter electrically connected to the line interface for transmitting amplitude modulated ultra wideband impulses over the guided medium, and an ultra wideband receiver electrically connected to the line interface for receiving amplitude modulated ultra wideband impulses over the guided medium. | 2009-04-30 |
20090110031 | MILLIMETER WAVE BEACONING WITH DIRECTIONAL ANTENNAS - A wireless device comprises a code-assignment module configured for assigning Golay codes to be used for spreading, a spreading module configured for spreading data with the Golay codes to produce a signal, wherein the Golay codes are randomly used to spread the data, and a transmitter configured for transmitting the signal. The wireless device may transmit a first beacon signal via a set of quasi-omni beam patterns, and a second beacon signal via a set directional beam patterns. The first beacon signal has a first transmission rate that is higher than the second beacon signal's the transmission rate. Extended Golay codes having zero periodic cross-correlation may be generated from a Golay code and a set of short sequences. A data block transmitted by the wireless device may comprise Golay codes and data portions, wherein every data portion is between two Golay codes and every Golay code is between two data portions. | 2009-04-30 |
20090110032 | Method of Reusing Spreading Codes - A method of wireless data communication. The method includes the step of receiving a feedback indicator signal at two or more points in space from two or more transmission paths. Each transmission path may correspond with a wireless unit seeking to communicate over a downlink and/or an uplink. The method, thereafter, includes the step of measuring a relative phase difference between the feedback indicator signals of two or more transmission paths. Subsequently, one spreading code may be assigned to two or more transmission paths if the measured relative phase difference between their feedback indicator signals corresponds with minimal mutual interference. Consequently, two or more wireless units having a measured relative phase difference in the range of about 90 degrees and about 270 degrees, for example, may use the at least of the same spreading codes. | 2009-04-30 |
20090110033 | MULTICARRIER SUB-LAYER FOR DIRECT SEQUENCE CHANNEL AND MULTIPLE-ACCESS CODING - Carrier Interferometry (CI) provides wideband transmission protocols with frequency-band selectivity to improve interference rejection, reduce multipath fading, and enable operation across non-continuous frequency bands. Direct-sequence protocols, such as DS-CDMA, are provided with CI to greatly improve performance and reduce transceiver complexity. CI introduces families of orthogonal polyphase codes that can be used for channel coding, spreading, and/or multiple access. Unlike conventional DS-CDMA, CI coding is not necessary for energy spreading because a set of CI carriers has an inherently wide aggregate bandwidth. Instead, CI codes are used for channelization, energy smoothing in the frequency domain, and interference suppression. CI-based ultra-wideband protocols are implemented via frequency-domain processing to reduce synchronization problems, transceiver complexity, and poor multipath performance of conventional ultra-wideband systems. CI allows wideband protocols to be implemented with space-frequency processing and other array-processing techniques to provide either or both diversity combining and sub-space processing. CI also enables spatial processing without antenna arrays. Even the bandwidth efficiency of multicarrier protocols is greatly enhanced with CI. CI-based wavelets avoid time and frequency resolution trade-offs associated with conventional wavelet processing. CI-based Fourier transforms eliminate all multiplications, which greatly simplifies multi-frequency processing. The quantum-wave principles of CI improve all types of baseband and radio processing. | 2009-04-30 |
20090110034 | SYSTEMS AND METHODS FOR GENERATING SEQUENCES THAT ARE NEAREST TO A SET OF SEQUENCES WITH MINIMUM AVERAGE CROSS-CORRELATION - A method for generating sequences that are nearest to a set of sequences with minimum average cross-correlation is described. Each element of a set of sequences is projected to a nearest constellation point. The set of sequences is converted into a time domain representation. An inverse discrete Fourier Transform (IDFT) is performed on the set of sequences. A cubic metric of each sequence of the set of sequences is evaluated. A sequence is removed from the set if the cubic metric exceeds a threshold. A minimum maximum cross-correlation is obtained for the set of sequences. | 2009-04-30 |
20090110035 | RADIO COMMUNICATIONS SYSTEM DESIGNED FOR A LOW-POWER RECEIVER - The invention relates to methods by which radio signals can be transmitted to, and received by, a radio receiver such that the receiver consumes very little power from a battery or energy source. The invention is applicable not only to medical implants, but any application requiring a radio receiver to operate with very low power consumption. | 2009-04-30 |
20090110036 | Processing Digital Samples in a Wireless Receiver - A method of processing digital samples of a signal received at a receiver of a wireless communication system includes monitoring channel conditions and generating a channel indicator including at least one channel parameter by performing at least one of: estimating a channel mobility parameter and comparing it with a threshold; estimating a channel parameter of the energy of the channel outside a predefined temporal window, and comparing it with a threshold; estimating a channel temporal duration parameter and establishing if it meets predetermined criteria; estimating a channel-zero location parameter and establishing if it meets predetermined criteria; estimating a received-signal signal-to-disturbance power ratio, and comparing it to a threshold; estimating an estimated-channel-response signal-to-disturbance power ratio; estimating the degree of non-stationarity of the disturbance at the receiver input; and selecting one of a plurality of processing routines for processing the digital samples based on said channel indicator. Related receivers are also described. | 2009-04-30 |
20090110037 | CHANNEL ESTIMATION FOR TIME DIVISION DUPLEX COMMUNICATION SYSTEMS - A plurality of communication bursts are used to communicate data in a shared spectrum in a time slot of a time division duplex communication system. Each burst has an associated midamble sequence of a set of known sequences. A wireless communication apparatus has a receiver component configured to receive the plurality of communication bursts and to define a received vector corresponding to the received bursts. A channel estimator is provided that is configured to estimate channel information of the plurality of communication bursts by constructing a block matrix having a plurality of identical right circulant matrix blocks using the known midamble sequences and the received vector. A data detector then recovers data from the received communication bursts using the estimated wireless channel information. | 2009-04-30 |
20090110038 | ARRANGEMENT AND METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEMS - Systems and methodologies are described that facilitate arrangement and transmission of control information in a wireless communication system. As described herein, a scheduled transmission of acknowledgement (ACK) signaling and channel quality information (CQI) signaling in a common subframe can be adapted for network implementations with limited link budget wherein ACK signaling is configured for repetition over multiple subframes to ensure a desired error rate level for the ACK signaling. To these ends, various aspects described herein facilitate modification of a coding rate applied to ACK signaling to be transmitted with data based on a repetition factor of the ACK signaling. Additionally and/or alternatively, various aspects described herein facilitate dropping of CQI signaling and transmission of only ACK signaling on subframes where CQI and ACK signaling are to be transmitted substantially simultaneously and ACK transmission is configured for repetition over multiple subframes. | 2009-04-30 |
20090110039 | Bus interface unit for interposing in a two-wire current loop, as well as a transducer, position controller and analog input and output module with such a bus interface unit - A bus interface unit is provided for intermediate switching in a two-wire current loop, wherein the bus interface unit has a transformer for potential-free decoupling of an alternating current signal modulated with digital receive data and/or for coupling in of an alternating current signal to be modulated with digital send data. The alternating current signal is modulated onto a direct current signal of a two-wire current loop. The bus interface unit has a bidirectional modem unit connected on the secondary side to the transformer for output of the receive data on a data bus and for input of the send data from the data bus. The transformer has two primary windings, which are interconnected such that the magnetic fields generated by the two-wire loop current flowing through it cancel each other out. A lowpass and/or a highpass filter for the alternating current signal is connected upstream from the at least one primary winding. | 2009-04-30 |
20090110040 | Transceiver system and associated methods and systems - In the example embodiments, test signals sent from a transmitting system are received at a receiving system. The receiving system generates a determination signal indicating, in one embodiment, whether received signals have a desired relationship with respect to a clock signal at the receiving system. Timing of the clock signal or timing for transmitting signals may be adjusted based on the determination. In another embodiment, the receiving system generates a determination signal indicating whether the pulse width of a lone pulse signal equals a desired time interval. Equalization or pre-emphasis is controlled based on the determination signal. | 2009-04-30 |
20090110041 | Method and Device for Transmitter Calibration - A device for calibrating a digital communication station uses an initial ranging procedure for measuring channel parameters in a communication channel. The device comprises a communication emulator, a measuring device, and a calibrator. The communication emulator transmits a signal to the communication station which transfers the communication station into an initial ranging mode. The measuring device measures parameters of the signal transmitted by the communication station during an initial ranging cycle. From these measurements the calibrator calculates the necessary calibration adjustments to the communication station and adjusts it accordingly. | 2009-04-30 |
20090110042 | Determining a bit error rate (BER) using interpolation and superposition - In one embodiment, the present invention includes a method for receiving a jitter profile and a step response of a channel coupled between a transmitter and a receiver and a bit pattern to be transmitted, transmitting the bit pattern along the channel from the transmitter to the receiver with the jitter profile and the step response, receiving the bit pattern at the receiver and converting the bit pattern to a data stream by interpolating the step response according to a jitter of a current bit to obtain a jittery step response, superposing the jittery step response onto the data stream, calculating the jitter at each transition bit of the bit pattern by determining a time difference between actual and ideal crossing points, incrementing a jitter distribution function with the jitter, and generating a timing curve for the channel using the jitter distribution function. Other embodiments are described and claimed. | 2009-04-30 |
20090110043 | Performing adaptive external equalization - In one embodiment, the present invention includes a method communicating control information for an external adaptive equalization process for a channel coupled between a transmitter and a receiver from an external agent. In this way, the external agent may control tap settings of an equalizer based on feedback information from the receiver responsive to a data pattern generated and transmitted by the transmitter. Other embodiments are described and claimed. | 2009-04-30 |
20090110044 | Method and Apparatus for Deciding a Channel Impulse Response - Method and apparatus for deciding a channel impulse response for an OFDM system are provided. First, a channel frequency response is generated by using a plurality of pilot tones of a signal. A channel impulse response is generated by applying the IFFT to the channel frequency response. A plurality of selected channel taps are derived by comparing a plurality of channel taps related to the channel impulse response with a reference threshold. Finally, the channel impulse response is generated by calculating channel impulse respose according to the selected channel taps. This method calculates the channel impulse response in time domain and frequency domain so that the calculation complexity can be reduced, and the system efficiency can be enhanced. | 2009-04-30 |
20090110045 | METHOD AND APPARATUS FOR RATE-DEPENDENT EQUALIZATION - Methods and apparatus are provided fox equalizing a received signal. A received signal is equalized by determining a data rate of the received signal; obtaining one or more equalization parameters associated with the determined data rate; and equalizing the received signal using the obtained one or more equalization parameters. The equalization parameters may comprise, for example, one or more of a gain parameter, zero control for a high pass filter and one or more threshold settings for one or more latches used during the equalizing step, such as data latches or transition latches (or both). | 2009-04-30 |
20090110046 | METHOD AND APPARATUS FOR EQUALIZATION USING ONE OR MORE QUALIFIERS - Methods and apparatus are provided for equalizing a received signal. A received signal is equalized by updating one or more equalization parameters; and discarding the updated equalization parameters if one or more predefined qualifier conditions are detected during the equalizing step. The received signal can optionally be equalized using the updated equalization parameters if the predefined qualifier conditions are not detected during the equalizing step. The updated equalization parameters can optionally be stored if the one or more predefined qualifier conditions are not detected during the equalizing step | 2009-04-30 |
20090110047 | DEMODULATOR WITH CONFIGURABLE ADAPTIVE EQUALIZER - An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, the receiver has an adaptive equalizer configurable to operate with QPSK or 8PSK modulated signals. In the equalizer, a slicer table memory responsive to an 8-level quantizer (slicer) and a select signal is configured to map the output of the quantizer into QPSK or 8PSK symbol coordinates depending on whether the QPSK or the 8PSK signal is being received. The slicer table memory may be loaded with the symbol coordinates calculated from data in the 8PSK signal. A pattern matcher determines if the 8PSK or the QPSK signal is being received and asserts the select signal to configure the slicer table memory accordingly. | 2009-04-30 |
20090110048 | Radio Receiver in a Wireless Communications System - Techniques are described for optimizing the processing facilities of a receiver in a wireless communication environment, taking into account processing performance set against the computing resources and/or power consumption required to obtain that processing performance. A radio receiver for a wireless communications system can include channel equalization means arranged to receive samples of an incoming signal and to generate an equalized output, said channel equalization means including means for processing said digital samples in accordance with an equalizer algorithm. The receiver includes means for estimating parameters of a channel over which the incoming signal has been transmitted. The receiver can also include means for selecting from a plurality of equalizer algorithms an equalizer algorithm for execution by the processing means based on at least one said estimated channel parameter. Related methods and algorithms are described. Related computer program products are also described. | 2009-04-30 |
20090110049 | Radio Receiver in a Wireless Communications System - Techniques are described for optimizing processing facilities of a receiver in a wireless communication environment, taking into consideration processing performance set against the computing resources and/or power consumption required to obtain the processing performance. An embodiment of a radio receiver is described that includes a channel equalization means arranged to receive digital samples of an incoming signal and to generate an equalized output, said channel equalization means including means for processing said digital samples in accordance with an equalizer algorithm utilizing a set of equalizer parameters. The receiver can include means for estimating at least one parameter of a channel over which the signal has been received, and means for selecting at least one of said equalizer parameters based on at least one of said estimated channel parameters. Related methods, algorithms, and computer program products are also described. | 2009-04-30 |
20090110050 | SPACE-TIME CODING METHOD USING A PARTITIONED POSITION MODULATION ALPHABET - The invention relates to a space-time coding method for a MIMO-UWB system with P antennas using information symbols belonging to an M-PPM, where M is a multiple of P. The modulation alphabet is partitioned into P sub-alphabets corresponding to successive ranges of modulation positions. An extension of the initial alphabet is obtained by forcing the information symbols to belong to some sub-alphabets, thereby increasing the binary rate of said system. | 2009-04-30 |
20090110051 | METHOD AND SYSTEM FOR REDUCING THE IMPACT OF LATENCY ON VIDEO PROCESSING - The disclosed systems and methods relate to reducing the effect of video processing latency in devices that utilize PCI Express Active State Power Management (PCI-E ASPM). Power state transition delay may be reduced by initiating an early L1 exit based on a video processing stimulus. Aspects of the present invention may enable a higher level of performance and responsiveness while supporting the benefits of ASPM. Aspects of the present invention may be embodied in a video processing device that uses a video accelerator with a PCI-E interface. | 2009-04-30 |
20090110052 | METHOD AND SYSTEM FOR MONITORING AND CONTROLLING A BACK-UP RECEIVER IN LOCAL COLLECTION FACILITY FROM A REMOTE FACILITY USING AN IP NETWORK - A system and method suitable for collecting local television signals includes a local collection facility having a plurality of primary receiver circuit modules with a first receiver circuit module and a back-up receiver module. The local collection facility includes the first receiver circuit module receiving and demodulating the first channel signal and forming a first IP signal. The first receiver has a first multicast group. The back-up receiver circuit module receives and demodulates the first channel signal and forming a second signal. The back-up receiver has a second multicast group. A remote facility is spaced apart from the local collection facility and communicates with the local collection facility through an IP backhaul. A primary decoder within the remote facility is communication with the IP backhaul and forms a decoded signal from the first IP signal. The primary decoder belongs to the first multi-cast group. A primary encoder within the remote facility communicates with the primary decoder and forms a first encoded signal from the decoded signal. A multiplexer multiplexes the first encoded signal into a multiplexed signal. A monitoring system includes commanding the primary decoder to join the second multicast group and discontinue the first multicast group. The primary decoder forms the decoded signal from the second IP signal. | 2009-04-30 |
20090110053 | EMBEDDED SYSTEM AND REMOTE-CONTROL SERVO APPARATUS THEREOF - A remote-control servo apparatus of an embedded system is provided. The remote-control servo apparatus includes a compression unit and a network interface unit. The compression unit coupled to an image output interface of the embedded system receives and compresses an output image of the embedded system to generate a compressed image. The network interface unit coupled between the compression unit and a remote apparatus transmits the compressed image output from the compression unit to the remote apparatus via a network. An input-event of the remote apparatus is transmitted to an input apparatus interface of the embedded system via the network and the network interface unit. Therefore, the remote apparatus can operate the embedded system through the remote-control servo apparatus. | 2009-04-30 |
20090110054 | Method, medium, and apparatus for encoding and/or decoding video - A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream formed with a base layer bitstream and an enhancement layer bitstream, in order to provide forward compatibility, is described. The method includes reconstructing an image having an extended bit-depth and an extended video format into an image having a base bit-depth and a base video format, encoding the reconstructed image, and as a result of the encoding of the image having the base bit-depth and the base video format, generating a base layer bitstream, and reconstructing the image having the extended bit-depth and extended video format into an image having the extended bit-depth and the base video format, and by using the result of the encoding of the image having the base bit-depth and the base video format, encoding the image having the extended bit-depth and the base video format, and generating an enhancement layer bitstream with a result of the encoding of the image having the extended bit-depth and the base video format and additional data required for the extended video format. | 2009-04-30 |
20090110055 | METHOD FOR TRANSMITTING MOVING IMAGE DATA AND COMMUNICATION APPARATUS - A method for transmitting moving image data that includes a plurality of frames each divided into a plurality of pieces of data includes setting a priority to each of the plurality of pieces of data based on a characteristic thereof, determining a transmission order of the plurality of pieces of data to transmit the plurality of pieces of data according to the set priority, wherein a transmission order of the plurality of pieces of data having a same priority is determined not to transmit data which is displayed at a same position in successive frames in a same transmission order, and transmitting the plurality of pieces of data in the determined transmission order. | 2009-04-30 |
20090110056 | MOVING-PICTURE COMPRESSION-ENCODING APPARATUS - Re-encoding information indicating whether or not an input moving picture has been compression-encoded is provided to a mode determining unit. The mode determining unit determines an optimal encoding mode for the input moving picture, out of a plurality of encoding modes. The mode determining operation is controlled by the re-encoding information. According to a mode determination result of the mode determining unit, a prediction error value corresponding to the determined mode is selected by a selection switch, and then, an encoding process is performed. As the re-encoding information, a predetermined value, a bit rate, and a quantization parameter, etc., could be provided. | 2009-04-30 |
20090110057 | PROCESSING APPARATUS AND PROCESSING METHOD FOR A DIGITAL TELEVISION - A processing method and a processing apparatus for a digital television are provided. A processing apparatus for a digital television (DTV) to process a DTV stream, comprising: a demultiplexing unit for retrieving a service information from the DTV stream; a memory coupled to the demultiplexing unit for storing the service information; a first processor coupled to the memory for assigning a task by sending a command according to the service information; a second processor coupled to the memory for processing the task according the command; a communication unit coupled to the first processor and the second processor, for receiving the command from the first processor and sending the command to the second processor; and at least one function module coupled to the first processor and the second processor, respectively, controlled by the first processor or the second processor, to process the service information. | 2009-04-30 |
20090110058 | Smart image processing CCTV camera device and method for operating same - A smart image processing CCTV camera device and a method for operating the same are proposed. The camera can process, compress and store digital images, and zoom to a captured image using a digital image-capturing component therein. It can also restore the captured image to either an analog or a digital signal for transmission or replay of captured images immediately or at a later time. Moreover, the camera can also perform motion image analysis and tracking and can also perform optical or digital image zooming on a tracked image to monitor an object and ensure a clear image is captured. | 2009-04-30 |
20090110059 | METHOD AND SYSTEM FOR TRANSMITTING END-USER ACCESS INFORMATION FOR MULTIMEDIA CONTENT - A system, method and devices for embedding end-user access information, such as digital rights management (DRM) information and/or conditional access (CA) information, in multimedia content, such as broadcast video content, and transmitting or distributing the multimedia content, including the end-user access information, to one or more end user devices, such as multimedia content processing (set-top) devices and mobile devices. The methods, systems and devices also involve receiving and decoding the transmitted multimedia content, including extracting end-user access information from the multimedia content and using the end-user access information to allow or deny access to the multimedia content by the end user device. The end-user access information is embedded in the multimedia content in a manner that reduces or even eliminates the need to also transmit end-user access information separately or along with the associated multimedia content. | 2009-04-30 |
20090110060 | Method and apparatus for performing lower complexity multiple bit rate video encoding using metadata - A Multiple Bit Rate (MBR) video encoding system wherein a first video encoding at a first bit rate is performed based on the original video source material, and wherein the first video encoding generates and saves metadata relating to the encoding process. In typical block-based motion-compensated video encoding techniques, this metadata may comprise block motion search information including motion vectors and error information. This saved metadata is then used during one or more subsequent encodings at different bit rates to generate a plurality of video encodings at different bit rates. This approach provides a more efficient MBR video encoding system realization than by encoding at each bit rate independently. | 2009-04-30 |
20090110061 | METHOD AND APPARATUS FOR PREDICTING VIDEO TRAFFIC - A method and apparatus for predicting video traffic are provided. The method includes extracting the statistical properties of previous Moving Picture Experts Group (MPEG)-4 video traffic and predicting the size of a subsequent frame based on the statistical properties of the previous MPEG-4 video traffic. Therefore, it is possible to address such problems associated with traffic bursts as transmission delays or low throughputs and thus to improve the performance of communication and network systems that transmit video traffic. | 2009-04-30 |
20090110062 | OPTIMAL HEEGARD-BERGER CODING SCHEMES - Optimal Heegard-Berger coding methods, devices, and systems are provided based on the disclosed coding schemes. The disclosed schemes facilitate decoding even in the absence of side information, with lower coding complexity than conventional Wyner-Ziv based distributed coding techniques. The disclosed details enable various refinements and modifications according to system design considerations. | 2009-04-30 |
20090110063 | ENCODING APPARATUS, METHOD OF CONTROLLING THEREOF, AND COMPUTER PROGRAM - An encoding apparatus comprises, a detection unit configured to determine a characteristic of the image of each of a plurality of blocks and to detect whether visual degradation in each block is noticeable, a determination unit configured to determine a quantization parameter of each block based on a detection result, a transformation unit configured to perform orthogonal transformation of the block and quantization using the quantization parameter, an encoding unit configured to perform variable-length encoding of a transformation result, an inverse transformation unit configured to inversely transform the transformation result to generate a locally decoded image, and a calculation unit configured to calculate a reference value to change a criterion to determine the characteristic of the image, wherein the detection unit detects a block having noticeable visual degradation by changing the criterion in accordance with the reference value. | 2009-04-30 |
20090110064 | Method of selecting a reference picture - In one embodiment, the method includes determining reference picture index numbers in a reference picture list. The reference picture index numbers increase for reference pictures having a decreasing display order with respect to a picture including the macroblock. The reference picture index numbers increase for reference pictures having an increasing display order with respect to the picture including the macroblock, and the reference picture index numbers of the reference pictures having a decreasing display order are less than the reference picture index numbers of the reference pictures having an increasing display order. The embodiment further includes reordering the reference picture index number allocated to each reference picture in the reference picture list, obtaining a field reference picture index associated with the current field macroblock, determining a frame reference picture index based on the field reference picture index divided by 2, and selecting a field reference picture based on the selected frame reference picture and the field reference picture index. | 2009-04-30 |
20090110065 | System and method for scalable portrait video - Generation, coding and transmission of an effective video form, scalable portrait video. As an expansion to bi-level video, portrait video is composed of more gray levels, and therefore possesses higher visual quality while it maintains a low bit rate and low computational costs. Portrait video is a scalable video in that each video with a higher level always contains all the information of the video with a lower level. The bandwidths of 2-4 level portrait videos fit into the bandwidth range of 20-40 Kbps that GPRS and CDMA 1X can stably provide. Therefore, portrait video is very promising for video broadcast and communication on 2.5 G wireless networks. With portrait video technology, this system and method is the first to enable two-way video conferencing on Pocket PCs and Handheld PCs. | 2009-04-30 |
20090110066 | Method and Apparatus for Selecting a Coding Mode - A method and apparatus for selecting a coding mode for a block of a current picture are disclosed. For example, the method selects a coding mode in accordance with a cost function, for coding the block, wherein the cost function comprises a coding distortion parameter and a number of coding bits parameter, wherein said coding distortion parameter is measured in accordance with at least one of: between a prediction residual and a reconstructed prediction residual, or between a transformed prediction residual and a dequantized transformed prediction residual, wherein the number of coding bits parameter is computed in accordance with at least one of: from a true number of compressed bits resulting from coding said block, directly from a plurality of bins, or directly from a plurality of quantized transform coefficients. | 2009-04-30 |
20090110067 | IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD - An encoding device includes a color component separating unit for separating an input bit stream for the respective color components, a block dividing unit for dividing an input color component signal into blocks to generate a signal of an encoding unit area, a predicted image generating unit for generating a predicted image for the signal, a determining unit for determining a prediction mode used for encoding according to a prediction efficiency of the predicted image, a prediction error encoding unit for encoding a difference between the predicted image corresponding to the prediction mode determined by the determining unit and the input color component signal, and an encoding unit for variable length-coding the prediction mode, an output from the prediction error encoding unit, and a color component identification flag indicating the color component to which the input bit stream belongs as a result of the color component separation. | 2009-04-30 |
20090110068 | Coding Apparatus, Coding Method, Decoding Apparatus, Decoding Method, and Program - A coding apparatus for hierarchically (layering) coding top field data and bottom field data divided from each of a plurality of picture data composing a moving picture image has a first coding unit ( | 2009-04-30 |
20090110069 | Method and apparatus encoding and/or decoding image by using diffusion properties of the image - Provided are a method and apparatus for encoding/decoding a moving picture by using the diffusion properties of the image. In the method, a value of a current pixel is predicted from the values of neighboring pixels of the current pixel, based on the variations between the values of the neighboring pixels present in directions toward the current pixel; a correction value of the predicted value is calculated from at least one variation from among the variations; the value of the current pixel is determined by reflecting the correction value into the predicted value; and then, the original image is reconstructed using the determined value of the current pixel. | 2009-04-30 |
20090110070 | IMAGE ENCODING DEVICE AND ENCODING METHOD, AND IMAGE DECODING DEVICE AND DECODING METHOD - In an image encoding/decoding device of the present invention, the prediction direction in a target block, i.e., a block which becomes the target of the intra-frame prediction processing, is estimated by taking advantage of pre-encoded blocks which are adjacent to the target block. First, as edge information on decoded images on the adjacent blocks, intensities and angles of the edges are calculated. Next, of the degrees of likelihood calculated with respect to each prediction direction by taking advantage of this edge information and, e.g., a neural network, the prediction direction whose degree of likelihood is the highest is employed as the prediction direction in the target block. Also, a variable-length code table is dynamically created based on the estimated result, which allows a significant reduction in the prediction-direction representing code amount. | 2009-04-30 |
20090110071 | VIDEO ENCODING/ DECODING METHOD AND APPARATUS - A video encoding method comprises selecting one combination, for each block of an input video signal, from a plurality of combinations each including a predictive parameter and at least one reference picture number determined in advance for the reference picture, generating a prediction picture signal in accordance with the reference picture number and predictive parameter of the selected combination, generating a predictive error signal representing an error between the input video signal and the prediction picture signal, and encoding the predictive error signal, information of the motion vector, and index information indicating the selected combination. | 2009-04-30 |
20090110072 | MOVING PICTURE PREDICTION METHOD, MOVING PICTURE CODING METHOD AND APPARATUS, AND MOVING PICTURE DECODING METHOD AND APPARATUS - A moving picture prediction method for enabling a calculation amount and a storage capacity to be reduced in a prediction about a moving picture by scaling processing is provided. A method for predicting the value P of Time T from the value P | 2009-04-30 |
20090110073 | Enhancement layer residual prediction for bit depth scalability using hierarchical LUTs - A scalable video bitstream may have an H.264/AVC compatible base layer and a scalable enhancement layer, where scalability refers to color bit-depth. According to the invention, BL information is bit-depth upsampled using separate look-up tables for inverse tone mapping on two or more hierarchy levels, such as picture level, slice level or MB level. The look-up tables are differentially encoded and included in header information. Bit-depth upsampling is a process that increases the number of values that each pixel can have, corresponding to the pixels color intensity. The upsampled base layer data are used to predict the collocated enhancement layer, based on said look-up tables. The upsampling is done at the encoder side and in the same manner at the decoder side, wherein the upsampling may refer to temporal, spatial and bit depth characteristics. Thus, the bit-depth upsampling is compatible with texture upsampling. | 2009-04-30 |
20090110074 | Method and System for Motion Compensated Picture Rate Up-Conversion Using Information Extracted from a Compressed Video Stream - Certain aspects of a method and system for motion-compensated picture rate up-conversion (PRUC) using information extracted from a compressed video stream may include extracting PRUC data from a compressed video data stream while the compressed video data stream is being decompressed by a video decompression engine. The PRUC data may comprise, for example, local block motion vectors, block coding modes, quantization levels, quantized residual data and decoded pictures. A plurality of interpolated pictures may be generated based on extracting the PRUC data. | 2009-04-30 |
20090110075 | Method and System for Motion Compensated Picture Rate Up-Conversion of Digital Video Using Picture Boundary Processing - Certain aspects of a method and system for motion-compensated picture rate up-conversion (PRUC) of digital video using picture boundary processing may include generating one or more forward motion vectors and one or more backward motion vectors based on extracted picture rate up-conversion (PRUC) data. A cost of performing motion estimation of a particular block along the generated forward motion vectors and the generated backward motion vectors corresponding to the particular block may be calculated. The particular block may be a boundary block. A motion vector with the least cost may be selected and motion compensated to generate a plurality of interpolated pictures. | 2009-04-30 |
20090110076 | Method and System for Optical Flow Based Motion Vector Estimation for Picture Rate Up-Conversion - Certain aspects of a method and system for optical flow based motion vector estimation for picture rate up-conversion (PRUC) may include generating one or more motion vectors based on extracted picture rate up-conversion (PRUC) data by minimizing a cost function. The cost function may be constrained by any combination of a block matching constraint, a smoothness constraint and a bias constraint. The PRUC data may be extracted from a compressed video data stream while the compressed video data stream is being decompressed by a video decompression engine. The PRUC data may comprise local block motion vectors, block coding modes, quantization levels, quantized residual data and decoded pictures. A plurality of interpolated pictures may be generated based on extracting the PRUC data. | 2009-04-30 |