06th week of 2012 patent applcation highlights part 29 |
Patent application number | Title | Published |
20120033656 | Integrated Bluetooth and Wireless LAN Transmitters Having Simultaneous Bluetooth and Wireless LAN Transmissions - Integrated Bluetooth (BT) and Wireless Local Area Network (WLAN) transceivers are described. BT signals and WLAN signals can be transmitted simultaneously with one another. Samples from a BT signal sample stream are injected into a WLAN signal sample stream. According to one exemplary embodiment, a simultaneously transmitted BT signal/WLAN signal can be amplified and coupled onto a pin of an integrated circuit device for transmission. If there is no WLAN signal to be transmitted when a BT signal is to be transmitted, then the BT signal can be processed in a BT section of the transceiver, amplified and coupled to the same pin for transmission. | 2012-02-09 |
20120033657 | NETWORK SYSTEM - The network system includes a controller and a plurality of terminals. The controller sends a first request signal indicative of a response probability to the plurality of the terminals. Upon receiving the first request signal, each terminal sends a first response signal to the controller at the response probability indicated by the first request signal. The controller determines the total number of the terminals on the basis of the number of the received first response signals and the response probability. The controller determines a limited time period on the basis of the total number of the terminals, and sends a second request signal indicative of the limited time period to the terminals. Upon receiving the second request terminal, each terminal randomly selects a waiting time period from time periods not greater than the limited time period, and sends a second response signal to the controller after a lapse of the waiting time period. | 2012-02-09 |
20120033658 | MOBILE TELEPHONE VOIP/CELLULAR SEAMLESS ROAMING SWITCHING CONTROLLER - A nomadic server and a related system provides seamless roaming for a mobile communication device between different types of wireless networks, such as WiFi and cellular networks for voice, data and video communication. Use of the nomadic server enables a combination of WiFi and cellular networks for providing access to cellular phones and make use of the VOIP networks for switching the calls wherever possible. The nomadic server is a telephone communication processing and switching server that will “hold” the present, in-progress telephone communications without dropping, while roaming without losing the present, in-progress communication. For example, a telephone communication can be seamlessly switching between VOIP and cellular telephone networks using the nomadic server. Nomadic server resources interface with the VOIP and cellular network switches to provide the hand-off between networks. This approach enables switching of telephone communications over a VOIP network wherever possible either through WiFi or through cellular networks. | 2012-02-09 |
20120033659 | Apparatus and Method for Moving WCDMA Mobile Station in the Manner of the Least Packet Loss - A method for moving MS in the manner of the least packet loss can be divided into two steps. In the first step, when the MS is still connected to the source CN node and is running the effective loads, the MS prepares the routing information pointing at the target CN node. In the second step, the connection between the source CN node and the RAN node is released, the MS ID, the context data and the mobile information are transmitted to the target CN node. Then, a new connection between the target CN node and the RAN node is established. The step is completed synchronously and rapidly to minimize the packet loss. When establishing a new connection, the routing information transmitted to the MS before is used so that a new CN node is pointed at. | 2012-02-09 |
20120033660 | COMMUNICATION DEVICE, CONNECTION METHOD AND STORAGE MEDIUM - In order that even a wireless terminal whose an unique ID is not registered in the filter list can use simply the access point without a prior setting task by user, a communication device includes access point means, filtering disabling means, unique ID registration means and filtering enabling means. The access point means connects a wireless terminal with at least one of a lower network and an upper network. The filtering disabling means disables a filtering which prevents connecting with an unregistered wireless terminal whose an unique ID is not registered in a filter list. The unique ID registration means acquires the unique ID of the wireless terminal and registers the acquired unique ID in the filter list, upon a state where the filtering is disabling, if a connection request is received from the wireless terminal. The filtering enabling means enables the filtering after the unique ID of the wireless terminal is registered in the filter list. | 2012-02-09 |
20120033661 | DISTRIBUTED IP-PBX SIGNAL PROCESSING - Techniques are described by which an IP telephone system leverages the digital signal processing functions of end-user IP telephones by distributing signal processing tasks typically carried out by a centralized IP-PBX. The end-user IP telephones publicize their signal processing capabilities and availabilities to an IP-PBX, which maintains a resource capability mapping of the IP telephones. When the IP-PBX receive a bitstream for a communication session involving IP telephones and/or legacy phones of the IP telephone system, the IP-PBX determines the signal processing requirements for the bitstream, selects an available, capable IP telephone to perform the requirements, and distributes the bitstream to the selected IP telephone. The IP telephone performs the requisite signal processing and returns the processed bitstream to the IP-PBX, which forwards the processed bitstream to the destination endpoint for the communication session. | 2012-02-09 |
20120033662 | CROSSBAR SWITCH AND RECURSIVE SCHEDULING - A crossbar switch has N input ports, M output ports, and a switching matrix with N×M crosspoints. In an embodiment, each crosspoint contains an internal queue, which can store one or more packets to be touted. Traffic rates to be realized between all Input/Output (IO) pairs of the switch are specified in an N×M traffic rate matrix, where each element equals a number of requested cell transmission opportunities between each IO pair within a scheduling frame of F time-slots. An efficient algorithm for scheduling N traffic flows with traffic rates based upon a recursive and fair decomposition of a traffic rate vector with N elements, is proposed. To reduce memory requirements shared row queue (SRQ) may be embedded in each row of the switching matrix, allowing the size of all the XQs to be reduced. To further reduce memory requirements, a shared column queue may be used in place of the XQs. The proposed buffered crossbar switches with shared row and column queues, in conjunction with the now scheduling algorithm and the DCS column scheduling algorithm, can achieve high throughout with reduced buffer and VLSI area requirements, while providing probabilistic guarantees on rate, delay and jitter for scheduled traffic flows. | 2012-02-09 |
20120033663 | Discovery of Services Provided by Application Nodes in a Network - An application node advertises service(s), using a routing protocol, that it offers to other network nodes. For example, the routing protocol used to advertise service(s) in a Service Provider Network is typically an link-state, Interior Gateway Protocol (IGP), such as, but not limited to, Intermediate System to Intermediate System (IS-IS) or Open Shortest Path First (OSPF). Packets are encapsulated and sent from a service node (e.g., packet switching device) using one or more advertised services applied to a packet by an application node (e.g., a packet switching device and/or computing platform such as a Cisco ASR 1000). | 2012-02-09 |
20120033664 | Label Distribution Protocol Advertisement of Services Provided by Application Nodes - An application node advertises service(s), using a label distribution protocol, that it offers to other network nodes and a corresponding label to use to identify these services(s). For example, a Targeted Label Distribution Protocol (tLDP) session may be established between a packet switching device and the application node providing these services to communicate the advertisement. Packets are encapsulated and sent from a service node (e.g., packet switching device) with the corresponding label to have one or more advertised services applied to the packet by an application node (e.g., a packet switching device and/or computing platform such as a Cisco ASR 1000). | 2012-02-09 |
20120033665 | SYSTEM AND METHOD FOR MULTI-CHASSIS LINK AGGREGATION - Aggregation Switches connected to an edge node by a multi-chassis link aggregation group, wherein the Aggregation Switches are connected by a virtual fabric link that provides a connection for exchange of information between the Aggregation Switches regarding MAC addressing to synchronize MAC address tables. | 2012-02-09 |
20120033666 | E-SPRING SUPPORT OF ETHERNET PROTECTION - A method of routing traffic through a packet network having a mesh physical topography. At least two types of network primitive are defined, each type of network primitive providing a respective model of traffic forwarding through at least two neighbour nodes of the network. A network model encompassing at least a portion of the network is constructed using a set of two or more interconnected network primitives. The network model has nodes and links corresponding to respective nodes and lines of the network. Respective forwarding information is computed for each node of the network model. For each node of the network model, the respective computed forwarding information is installed in a forwarding database of the corresponding node of the network, such that traffic is forwarded by each node of the network in accordance with the respective computed forwarding information. | 2012-02-09 |
20120033667 | METHOD AND APPARATUS FOR PERFORMING MULTICAST TRACES IN MPLS NETWORKS - A multicast path trace capability is provided for tracing a multicast path from a root node to a leaf node where the trace originates at the leaf node. The leaf node sends a multicast trace request to the root node. The root node receives the multicast trace request and initiates a path trace request for collecting path information associated with the multicast path. The root node receives at least one path trace response, in response to the path trace request, which includes path information associated with the multicast path. The root node sends a multicast trace response, including the collected path information, to the leaf node. The leaf node receives the multicast trace response including the path information. The leaf node derives end-to-end path information for the multicast path using the path information received in the multicast trace response. The multicast path trace capability may be used for tracing an MPLS multicast path (e.g., a P2MP LSP) from a root node to a leaf node of the MPLS multicast tree. The multicast path trace capability may be used for tracing multicast paths in other types of multicast networks. | 2012-02-09 |
20120033668 | IP Multicast Snooping and Routing with Multi-Chassis Link Aggregation - Aggregation Switches connected via a virtual fabric link (VFL) are each active and able to perform at least limited IP multicast snooping. The resulting IP multicast snooping information is maintained internally within each Aggregation Switch and shared substantially in real-time therebetween via the VFL. | 2012-02-09 |
20120033669 | SYSTEM AND METHOD FOR TRAFFIC DISTRIBUTION IN A MULTI-CHASSIS LINK AGGREGATION - A pair of aggregation switches is connected to an edge node by a multi-chassis link aggregation group, wherein the aggregation switches are connected by a virtual fabric link (VFL) for exchange of information between the Aggregation Switches. The VFL includes a plurality of subsets of VFL physical links, wherein each subset is connected to a different pair of network interface modules on the Aggregation Switches. Traffic distribution across the plurality of subsets of VFL physical links is based on destination hardware device information in a pre-pended header of packets and/or based on a load balancing identifier in the pre-pended header. | 2012-02-09 |
20120033670 | EGRESS PROCESSING OF INGRESS VLAN ACLs - A network packet processing system includes source and destination virtual local area networks (VLANs) that are indirectly connected through a network routing device. Additionally, the network packet processing system includes a metadata generator connected to provide metadata for a network packet to be routed between the source and destination VLANS, wherein the metadata captures pre-routing source VLAN information from the network packet. The network packet processing system also includes an access control list (ACL) for specifying routing of the network packet between the source and destination VLANs that employs the pre-routing source VLAN information from the metadata and post-routing destination VLAN information from the network packet. A method of network packet processing is also included. | 2012-02-09 |
20120033671 | COMMUNICATION DEVICE, COMMUNICATION METHOD, AND RECORDING MEDIUM FOR RECORDING COMMUNICATION PROGRAM - A communication device including: a transfer unit transferring a received frame based on an identifier included in the received frame; a calculation unit calculating a size of the received frame to which the identifier is added when the received frame is a specific frame; a notification unit adding a value indicating a transmittable size or a size less than the transmittable size, when the size of the received frame after the identifier added is larger than the size that can be transmitted to a next destination communication device on a communication path, generating a transmission impossible notification frame addressed to a source communication device of the received frame, and transferring the transmission impossible notification frame to the transfer unit; and a retransmission unit correcting the size of the specific frame to be smaller than or equal to the transmittable size, when the transmission impossible notification frame is received and transferring the transmission impossible notification frame to the transfer unit. | 2012-02-09 |
20120033672 | VIRTUAL IP INTERFACES ON MULTI-CHASSIS LINK AGGREGATES - Aggregation Switches connected via a virtual fabric link (VFL) are each active and each coupled to a multi-chassis link aggregate group (MC-LAG), which is assigned to a multi-chassis link aggregate group virtual local area network (MC-LAG VLAN). A virtual Internet Protocol (IP) interface is allocated to the MC-LAG VLAN and configured on both Aggregation Switches | 2012-02-09 |
20120033673 | SYSTEMS AND METHODS FOR A PARA-VITUALIZED DRIVER IN A MULTI-CORE VIRTUAL PACKET ENGINE DEVICE - The present invention is directed towards methods and systems for communicating packets between network interface hardware of a multi-core device and a plurality of virtualized packet processors executed by one or more cores of the multi-core device. A first virtualization domain on the device may receive a packet via the network interface hardware. The first virtualization domain may comprise a privileged domain having access to the hardware. The system may communicate the packet to a queue for a virtualized packet processor from a plurality of virtualized packet processors and executing within a second virtualization domain on a core. The second virtualization domain may not have direct access to the network interface hardware. The packet processor may determine that the queue includes a difference between a number of packets read from and written to the queue. The packet processor may process the packet from the queue responsive to the determination. | 2012-02-09 |
20120033674 | DYNAMIC ESTABLISHMENT OF VIRTUAL CIRCUITS MULTISEGMENT PSEUDOWIRES - The present invention provides a technique for automatically establishing a virtual circuit from one edge device to another through a core network. The virtual circuit may comprise one or more pseudowire segments. These pseudowire segments extend between adjacent edge and core devices within the core network. Pseudowire segments through the core network are automatically stitched together as a setup message is forwarded from a first edge device to a second edge device through the core network. A virtual circuit is established in one direction, and packets are forwarded in an opposite direction. With the present invention, a virtual circuit comprising any number of pseudowire segments, as well as two attachment circuits, may be established in an automatic and efficient manner upon being initiated by the first edge device. | 2012-02-09 |
20120033675 | Dictation / audio processing system - An audio handling system comprising audio file handling means for at least one of converting, compressing, encrypting, E-mailing, and pushing audio files to at least one of a file transfer protocol (FTP) site and at least one E-mail address. | 2012-02-09 |
20120033676 | MGCP PACKAGE FOR BATTERY BACKUP CONTROL - In one embodiment, a gateway includes an interface, and a processor cooperatively operable with the interface to transmit and receive packet communications. The processor receives, over the interface, a request-notification for a backup battery status, which is formatted according to a media gateway control protocol (MGCP) package protocol. The processor transmits, over the interface, a notify of an observed event, the observed event indicating the backup battery status which is formatted according to the MGCP package protocol. In another embodiment, a call agent includes an interface and a processor. The call agent processor transmits a request-notification for a backup battery status, which is formatted according to a media gateway control protocol (MGCP) package protocol. The call agent processor also receives a notify of an observed event over the interface, the observed event indicating the backup battery status, which is formatted according to the MGCP package protocol. | 2012-02-09 |
20120033677 | ROUTER AND METHOD FOR CONFIGURING MULTIPLE INTERNET PROTOCOL ADDRESSES - A router and method for configuring multiple Internet Protocol addresses includes setting at least two IP addresses for a local user terminal, and mapping the IP addresses to a domain name of a remote user terminal. A router advertisement packet that includes the IP addresses is generated and transmitted to the local user terminal to configure the IP addresses for the local user terminal. The IP addresses are determined to be configured for the local user terminal successfully if the router receives a router solicitation packet from the local user terminal. | 2012-02-09 |
20120033678 | MULTI-CHASSIS INTER-PROCESS COMMUNICATION - Aggregation Switches connected via a virtual fabric link (VFL) are each active and able to communicate via an inter-process communication (IPC) using an IPC Virtual Local Area Network (IPC VLAN). A sub-set of Customer-facing ports (CFPs) of each Aggregation Switch are coupled to the VFL and assigned to the IPC VLAN to enable communication therebetween. | 2012-02-09 |
20120033679 | METHOD AND APPARATUS FOR IN-BAND PROVISIONING OF A DEVICE AT A CLOSED SUBSCRIBER GROUP - Methods and apparatuses are provided that facilitate performing in-band provisioning for one or more devices at a restricted group of network nodes. A packet data context related to performing provisioning at the restricted group can be established between a device and a network via a restricted group node. The device can request provisioning at the restricted group using the packet data context, and the network can perform the provisioning. The packet data context can restrict access to allow provisioning related communications while rejecting other communications until provisioning is complete. | 2012-02-09 |
20120033680 | SYSTEMS AND METHODS FOR RECEIVE AND TRANSMISSION QUEUE PROCESSING IN A MULTI-CORE ARCHITECTURE - Described herein is a method and system for directing outgoing data packets from packet engines to a transmit queue of a NIC in a multi-core system, and a method and system for directing incoming data packets from a receive queue of the NIC to the packet engines. Packet engines store outgoing traffic in logical transmit queues in the packet engines. An interface module obtains the outgoing traffic and stores it in a transmit queue of the NIC, after which the NIC transmits the traffic from the multi-core system over a network. The NIC receives incoming traffic and stores it in a NIC receive queue. The interface module obtains the incoming traffic and applies a hash to a tuple of each obtained data packet. The interface module then stores each data packet in the logical receive queue of a packet engine on the core identified by the result of the hash. | 2012-02-09 |
20120033681 | MEDIATING METHOD AND SYSTEM BETWEEN SIGNALING NETWORK PEERS - The present invention disclose a system and method for mediating between signaling network peers of diameter type, where each peer is associated with different telecommunication service providers network or different application vendors. The method comprise the steps of: identifying equipment application type and release version of each provider based on pre-defined automatic identification classification rules and profile, classifying the vendor of the implemented diameter application in each signaling peer, retrieving a first set of rules adapted for the identified source equipment type, intercepting messages of communication session between signaling peers of different providers, applying steering rules on outgoing requests for selecting the destination route of target peers, retrieving a second set of conversion rules adapted for the identified destination equipment type vendor application relating to messages structure, content types and content values and applying all conversion rules on intercepted messages for translating between messages formats of the different signaling peers. | 2012-02-09 |
20120033682 | BALANCED BIT LOADING FOR COMMUNICATION NETWORKS SUBJECT TO BURST INTERFERENCE - Wired and wireless communication networks can be subject to burst interference resulting in loss of throughput and data corruption. In a communication system comprising a transmitting network device and a receiving network device, the transmitting network device can be configured to implement balanced bit loading for retransmitting packets of a failed packet transmission. On receiving a request for retransmission from the receiving network device, the transmitting network device can identify and eliminate sub-carriers that are associated with a bit load that is less than a predefined bit load threshold. The transmitting network device can attempt to reallocate bit loads of the eliminated sub-carriers to remaining sub-carriers across two or more constituent symbols per original symbol. | 2012-02-09 |
20120033683 | Method and Receiver For Jointly Decoding Received Communication Signals Using Maximum Likelihood Detection - The present invention relates to a method in a receiver for decoding at least two received communication signals, wherein the communication signals are modulated, pre-coded by a discrete Fourier transform and transmitted by means of single-carrier frequency division multiple access scheme (SC-FDMA). The method comprises the steps of: performing an antenna combining and equalization on a signal observed at the receiver; performing inverse discrete Fourier transform on a model of the observed signal; whitening a time domain model of the observed signal; and jointly detecting the received at least two communication signals by performing soft value calculations based on maximum likelihood detection of a whitened time domain model using a whitened time domain channel estimate. | 2012-02-09 |
20120033684 | TDMA COMMUNICATION USING A CSMA CHIPSET - A technique for communicating information using an electronic device that includes an IEEE 802.11-compliant chipset is described. This communication technique facilitates transmission of data packets in IEEE 802.11 frames in a communication channel by the IEEE 802.11-compliant chipset using time division multiple access (TDMA). In particular, the electronic device may queue a data packet in a software queue. Based on available space in a hardware queue in the IEEE 802.11-compliant chipset, this data packet may be provided to the hardware queue for inclusion in an IEEE 802.11 frame that is compliant with an IEEE 802.11 communication protocol. Then, the electronic device provides time-slot control information to the IEEE 802.11-compliant chipset based on a timing-synchronization signal. In this way, the electronic device gates the release of the data packet from the hardware queue for transmission in the IEEE 802.11 frame by the IEEE 802.11-compliant chipset. | 2012-02-09 |
20120033685 | SERIAL LINK VOLTAGE MARGIN DETERMINATION IN MISSION MODE - This disclosure describes systems and methods for determining a voltage margin (or margin) of a serializer/deserializer (SerDes) receiver in mission mode using a SerDes receiver. This is done by time-division multiplexing a margin determination and a tap weight adaptation onto the same hardware (or software, or combination of hardware and software). In other words, some parts of a SerDes receiver (e.g., an error slicer and an adaptation module) can be used for two different tasks at different times without degrading the effectiveness or bandwidth of the receiver. Hence, the disclosed systems and methods allow a SerDes receiver to determine the SerDes margin in mission mode and without any additional hardware or circuitry on the receiver chip. | 2012-02-09 |
20120033686 | ALL-GAIN GUIDING YB-DOBED FEMTOSECOND FIBER LASER - A mode-locked fiber laser system is presented with an improved optical cavity structure having a lower doped and longer gain medium. The laser system comprises: a laser source operable to produce a light beam; an optical cavity structure operable to amplify a light beam propagating therethrough; and a beam splitter operable to output the amplified light beam from the optical cavity. The optical cavity includes a single-mode fiber section and a gain fiber section doped with a lanthanide element, such as erbium or ytterbium, where the ratio between length of the gain fiber section to a total length of the cavity structure is greater than 1:5. By increasing length of the gain medium, peak power of the generated pulse is increased while keeping the nonlinear phase shift constant to avoid optical wave breaking. | 2012-02-09 |
20120033687 | LASER DEVICE - Disclosed is a laser device. The laser device includes a pulse generator which irradiates a laser beam between a high reflector mirror and an output coupler mirror to amplify and resonate the laser beam, a pulse output section which receives a laser beam pulse amplified and resonated through the output coupler mirror to output the laser beam pulse, and a Q switch which moves backward or forward in a direction perpendicular to a path of the laser beam formed between the pulse generator and the high reflector mirror. The output coupler mirror includes first and second mirrors provided on a base plate. Positions of the first and second mirrors are selectively changed as the Q switch moves backward or forward. | 2012-02-09 |
20120033688 | Single longitudinal mode fiber laser apparatus - The present invention provides a single frequency fiber laser apparatus. The fiber laser apparatus includes a Faraday rotator mirror. A piece of erbium doped fiber is inside the laser cavity. A wavelength selective coupler is connected to the erbium doped fiber. A pump source is coupled via the wavelength selective coupler. At least one sub-ring cavity component and/or an absorb component are inserted into the cavity for facilitating suppressing laser side modes to create a single longitudinal mode fiber laser. A partial reflectance fiber Bragg grating (FBG) is used as the front cavity end for this fiber laser. | 2012-02-09 |
20120033689 | HIGH-PRECISION SYNCHRONIZATION OF PULSED GAS-DISCHARGE LASERS - Two excimer lasers have individual pulsing circuits each including a storage capacitor which is charged and then discharged through a pulse transformer to generate an electrical pulse, which is delivered to the laser to generate a light pulse. The time between generation of the electrical pulse and creation of the light pulse is dependent on the charged voltage of the capacitor. The capacitors are charged while disconnected from each other. The generation of the electrical pulses is synchronized by connecting the capacitors together for a brief period after the capacitors are charged to equalize the charging voltages. The capacitors are disconnected from each other before they are discharged. | 2012-02-09 |
20120033690 | GIANT-CHIRP OSCILLATOR FOR USE IN FIBER PULSE AMPLIFICATION SYSTEM - A normal-dispersion fiber laser is operated using parameters in which dissipative solitons exist with remarkably large pulse duration and chirp, along with large pulse energy. A low-repetition-rate oscillator that generates pulses with large and linear chirp can thus replace the standard oscillator, stretcher, pulse-picker and preamplifier in a chirped-pulse fiber amplifier. | 2012-02-09 |
20120033691 | Device for Determining the Position of at Least One Structure on an Object, Use of an Illumination Apparatus with the Device and Use of Protective Gas with the Device - A device for determining the position of a structure ( | 2012-02-09 |
20120033692 | OPTICAL PUMPING OF A SOLID-STATE GAIN-MEDIUM USING A DIODE-LASER BAR STACK WITH INDIVIDUALLY ADDRESSABLE BARS - A diode-laser bar stack includes a plurality of diode-laser bars having different temperature dependent peak-emission wavelengths. The stack is arranged such that the bars can be separately powered. This allows one or more of the bars to be “on” while others are “off”. A switching arrangement is described for selectively turning bars on or off, responsive to a signal representative of the temperature of the diode-laser bar stack, for providing a desired total emission spectrum. | 2012-02-09 |
20120033693 | REAR EARTH ALUMINOBOROSILICATE GLASS COMPOSITION - The invention relates to aluminoborosilicate-based glasses suitable for use as a solid laser medium. In particular, these aluminoborosilicate-based laser glasses exhibit broad emission bandwidths of rare earth lasing ions. Although not entirely understood, the broadening of the emission bandwidth is believed to be achieved by the presence of significant amounts of lanthanide ions in the glass matrix. In addition, because of the high values of Young's modulus, fracture toughness and hardness, the rare earth aluminoborosilicate glass system according to the invention is also suitable as transparent armor window material. | 2012-02-09 |
20120033694 | BROADENING OF RARE EARTH ION EMISSION BANDWIDTH IN PHOSPHATE BASED LASER GLASSES - Disclosed are the use of phosphate-based glasses as a solid state laser gain medium, in particular, the invention relates to broadening the emission bandwidth of rare earth ions used as lasing ions in a phosphate-based glass composition, where the broadening of the emission bandwidth is believed to be achieved by the hybridization of the glass network. | 2012-02-09 |
20120033695 | SEMICONDUCTOR LASER APPARATUS AND OPTICAL APPARATUS - This semiconductor laser apparatus includes a package constituted by a plurality of members, having sealed space inside and a semiconductor laser chip arranged in the sealed space, while surfaces of the members located in the sealed space are covered with a covering agent made of an ethylene-polyvinyl alcohol copolymer. | 2012-02-09 |
20120033696 | SEMICONDUCTOR LASER APPARATUS AND OPTICAL APPARATUS - This semiconductor laser apparatus includes a package having sealed space inside and a semiconductor laser chip arranged in the sealed space. The package has a first member and a second member bonded to each other with an adhesive, a covering agent made of an ethylene-vinyl alcohol copolymer is formed on a bonded region of the first member and the second member in the sealed space, and the adhesive is covered with the covering agent. | 2012-02-09 |
20120033697 | WAVELENGTH BEAM COMBINING OF QUANTUM CASCADE LASER ARRAYS - A laser source based on a quantum cascade laser array (QCL), wherein the outputs of at least two elements in the array are collimated and overlapped in the far field using an external diffraction grating and a transform lens. | 2012-02-09 |
20120033698 | NITRIDE SEMICONDUCTOR LASER ELEMENT AND METHOD FOR MANUFACTURING SAME - A nitride semiconductor laser element has: a nitride semiconductor layer having cavity planes at the ends of a waveguide region, an insulating film formed on an upper face of the nitride semiconductor layer so that the ends on the cavity plane side are isolated from cavity planes, and a first film formed from the cavity plane to the upper face of the nitride semiconductor layer, and covered part of the insulating film surface, the first film has a first region that is in contact with the nitride semiconductor and a second region that is in contact with the insulating film, and is formed from Al | 2012-02-09 |
20120033699 | SURFACE-EMITTING LASER, SURFACE-EMITTING LASER ARRAY, DISPLAY APPARATUS INCLUDING THE SURFACE-EMITTING LASER ARRAY AS A LIGHT SOURCE, PRINTER HEAD, AND PRINTER - Provided is a surface-emitting laser including a periodic gain structure, which is capable of improving uniformity of carrier injection into multiple active regions and carrier confinement, to thereby improve laser characteristics. The surface-emitting laser includes: a first DBR layer; a first cladding layer; multiple active regions each including a multiple quantum well structure; an interbarrier layer disposed between the multiple active regions; a second cladding layer; a current confinement structure; and a second DBR layer. The multiple active regions are disposed at multiple positions at which light intensity of a gain region is maximum, and the interbarrier layer has an energy level at a bottom of a conduction band thereof which is higher than an energy level at a bottom of a conduction band of a barrier layer of the multiple quantum well structure of each of the multiple active regions, which are disposed at the multiple positions. | 2012-02-09 |
20120033700 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser device includes a semiconductor laser element configured to emit a fundamental wave; a transducer configured to receive the fundamental wave incident thereon and convert a wavelength of the fundamental wave to emit wavelength converted light; a filter configured to selectively transmit wavelength range light having a desired wavelength range of the wavelength converted light; a sealing member including a light-transmitting member and configured to enclose the semiconductor laser element, the light-transmitting member being configured to receive the wavelength range light transmitted through the filter and incident on the light-transmitting member, specularly reflect part of the wavelength range light, and substantially transmit the remaining part of the wavelength range light; and a photoreceptor configured to receive the specularly reflected light from the light-transmitting member. | 2012-02-09 |
20120033701 | METHOD OF MANUFACTURING SEMICONDUCTOR LASER DEVICE, SEMICONDUCTOR LASER DEVICE AND LIGHT APPARATUS - A method of manufacturing a semiconductor laser device comprises steps of forming a first semiconductor laser device substrate having first grooves for cleavage on a surface thereof, bonding a second semiconductor laser device substrate onto the surface side having the first grooves and thereafter cleaving the first and second semiconductor laser device substrates along at least the first grooves. | 2012-02-09 |
20120033702 | SEMICONDUCTOR LASER APPARATUS - A p-type pad electrode in a red semiconductor laser device and a first terminal are connected through a wire. A p-type pad electrode in an infrared semiconductor laser device and a second terminal are connected through a wire. A p-electrode in a blue-violet semiconductor laser device and a third terminal are connected through a wire. An n-electrode in the blue-violet semiconductor laser device is electrically conducting to a mount. An n-electrode in the red semiconductor laser device and the mount are connected through a wire, while an n-electrode in the infrared semiconductor laser device and the mount is connected through a wire. The mount has a fourth terminal inside. | 2012-02-09 |
20120033703 | HERMETICALLY-SEALED RF FEED-THROUGH WITH INTEGRATED CAPACITOR - A carbon-dioxide (CO | 2012-02-09 |
20120033704 | LASER PUMP ARRANGEMENT AND LASER PUMP METHOD WITH BEAM HOMOGENIZATION - In a laser pump arrangement for a laser medium that amplifies a laser beam, comprising at least one laser pump source ( | 2012-02-09 |
20120033705 | METHOD AND DEVICE FOR DIAGNOSING A THERMOSTAT - In a method for diagnosing a faulty thermostat in a coolant circuit, in particular for an internal combustion engine, having a fan, the faulty thermostat is detected as a function of a measured temperature and a setpoint temperature, the fan being turned on at least temporarily during the diagnosis. | 2012-02-09 |
20120033706 | MULTIPLE USE TEMPERATURE MONITOR ADAPTER, SYSTEM AND METHOD OF USING SAME - An adapter slip configured to be seated in a fluid port, the adapter slip including a lumen, an exterior wall, a shoulder, and a sleeve. The lumen extending along a length of a longitudinal axis, the lumen configured to receive a temperature probe. The exterior wall including a proximal end portion and a distal end portion, wherein the proximal end portion includes a tapered portion tapered at an acute angle with respect to the longitudinal axis. The shoulder extending outward from the exterior wall distal to the tapered portion configured to engage with a distal end of the fluid port. The sleeve configured extend within the lumen and project a predetermined distance beyond the proximal end portion of the exterior wall, the sleeve including a sleeve lumen and a closed proximal end, the sleeve lumen configured to receive at least a temperature sensor of the temperature probe. | 2012-02-09 |
20120033707 | CRYOGENIC TRANSITION DETECTION - A non-destructive test using cryogenic temperatures is capable of detecting defects in materials that result from residual stress from manufacturing and from retained austenite. The subject materials or parts that are subjected to cryogenic temperatures approaching and below ˜−300° F., −184° C., 89° K, thereby causing permanent deformations or characteristic changes in the material if excessive residual stress, retained austenite or discontinuities exist. To determine the extent of changes, a first metric of the subject material is determined, the material is then subjected to cryogenic cooling thereby triggering any deformation or characteristic changes. Subsequent to the cryogenic cooling, the subject material may be returned to a second temperature whereby a second metric representing based on the same characteristic of the subject material is determined. The comparison of the first and second metrics reveals the deformation or change resultant from the defect. In addition characteristic changes in the subject material during cryogenic cooling may be use to detect the phase transition of the retained austenite to martensite. | 2012-02-09 |
20120033708 | Surrogate Temperature Sensor for a Radiant Heat Source - A surrogate temperature sensor ( | 2012-02-09 |
20120033709 | TEMPERATURE MEASUREMENT SYSTEM AND TEMPERATURE MEASUREMENT METHOD - A temperature measurement system includes: a laser light source; an optical fiber; and a temperature measurement unit configured to acquire a measured temperature distribution of a temperature of a temperature measurement area along an installation path of the optical fiber by detecting backscattered light of the incident laser light in the optical fiber, wherein the temperature measurement unit sequentially makes a correction for the measured temperature distribution a plurality of times so as to make a square error between a convolution of a transfer function of the optical fiber along the installation path and the corrected temperature distribution and the measured temperature distribution smaller in each of the corrections, and the temperature measurement unit also replaces a corrected temperature at a specific point of the installation path with an estimated temperature at the specific point in each of the corrections. | 2012-02-09 |
20120033710 | OPTICAL TEMPERATURE SENSOR - The present invention relates to an optical temperature sensor, comprising: a housing; a light-transmitting unit, installed in the housing, for emitting light transmitted through an optical fiber into an inner space of the housing; and a bimetal device, movably installed in the housing, for varying the amount of transmitted light, wherein the optical temperature sensor is capable of measuring a temperature by using the amount of light, from the light transmitted via the optical fiber, which is shielded through bending due to a change in the temperature of the bimetal device, or using the amount of light, from the transmitted light, which is reflected and received. The optical temperature sensor has a simple structure and is not particularly restricted in terms of installation space. | 2012-02-09 |
20120033711 | Metal ebulliometer with internal fluid recirculation - Metal ebulliometer with internal fluid recirculation which is used to study the Vapor-Liquid Equilibrium without requiring the use of any auxiliary external elements. It provides the advantages of glass equipment and, as it is made of metal, it allows working in pressures higher than the atmospheric pressure—in a range of up to approximately 10 bars. This invention can be manufactured in either copper or stainless steel, for example. The result is the design of a continuous and dynamic equipment in which both phases (Vapor-Liquid) can be recirculated. | 2012-02-09 |
20120033712 | Device for Measuring the Temperature of a Substrate - A device for measuring the temperature of a substrate comprising a thermocouple comprising electric wires joined to each other at least one junction; a fixing element suitable for fixing said junction to said substrate in order to measure its temperature; characterized in that the fixing element comprises a thermally conductive element suitable for bearing a portion of electric wires adjacent to said junction; said thermally conductive element being capable of thermally coupling said portion of electric wires to said substrate. | 2012-02-09 |
20120033713 | METHOD, APPARATUS, AND USER TERMINAL FOR RECEIVING AND PROCESSING DATA - The present invention discloses a method for receiving and processing data. The method includes: convoluting a channel estimate value of a receive end with an SCH signal transmitted by a transmit end on an SCH and obtaining an SCH signal in a receive signal of the receive end; evaluating a difference between the receive signal and the SCH signal in the receive signal. An apparatus, and a user terminal are also disclosed in the present invention. By using the method and apparatus of the present invention, the SCH signal in a receiver may be restored and removed from the receive signal, and interference of the SCH on other channels may be eliminated, thereby improving performance of the receiver. | 2012-02-09 |
20120033714 | High data rate transmitter and receiver - A high-speed transmitter and receiver are provided. In one embodiment, a transmitter comprises a baseband processor structured to receive data and to convert the data into a multiplicity of high and low signal values, with each high and low signal value having a first timing interval. A local oscillator generates a clock signal at a second timing interval and a digital circuit combines the high and low signal values with the clock signal to produce a transmission signal directly at a transmission frequency. A receiver is configured to receive the signal. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims. | 2012-02-09 |
20120033715 | MULTI-USER INTERFERENCE CANCELLATION IN A SINGLE-CARRIER RADIO RECEIVER - A method, apparatus, and radio receiver system for canceling multi-user interference in a single-carrier radio communication system. A front-end receiver such as a RAKE receiver receives a radio signal formatted in a sequence of frames, and outputs a plurality of user signals. An ordering unit determines for a current frame, an order in which to decode and remove the interference contributions of the plurality of user signals. The order may be based on a list of user signals sorted in the order of descending signal-to-interference-plus-noise ratio (SINR), modified by the success or failure of attempts to decode each user signal. A frame calculator determines a coherence time, which is used to calculate the number of subsequent frames in which the user signals are decoded in the determined order. | 2012-02-09 |
20120033716 | TIME-SETTING IN SATELLITE POSITIONING SYSTEM RECEIVERS - Techniques are provided which may be implemented using various methods and/or apparatuses in a receiver and/or other like device to determine an SPS time using SPS signals based on a correlation process. A verification process may be performed, for example, that verifies a maximum peak in comparison with other peak information resulting from the correlation process, for example, by considering a ratio of a maximum peak to a next maximum peak. A time-setting algorithm may be selected, for example, based, at least in part, on a time uncertainty and/or on a type of demodulation performed on the SPS signal. The time-setting algorithm may operatively control one or both of the correlation and/verification processes in a desired manner given the time uncertainty and/or type/mode of demodulation performed. | 2012-02-09 |
20120033717 | INTERFACE DEVICE FOR HOST DEVICE, INTERFACE DEVICE FOR SLAVE DEVICE, HOST DEVICE, SLAVE DEVICE, COMMUNICATION SYSTEM AND INTERFACE VOLTAGE SWITCHING METHOD - A communication system in which an operating voltage can be selected from a plurality of interface voltages enables an interface voltage to be switched in a stable manner during operation of the system. When the interface voltage is to be switched, a host device ( | 2012-02-09 |
20120033718 | RECONFIGURABLE WIRELESS MODEM ADAPTER INCLUDING DIVERSITY/MIMO MODEMS - A reconfigurable wireless modem adapter is provided. The reconfigurable wireless modem adapter includes a control board and a radio frequency switch. The control board includes at least two user-data interfaces for respective at least two modems, the modems including at least one diversity/multiple-input-multiple-output (MIMO) modem. The control board is configured to communicatively couple to at least one onboard system in a vehicle and to activate one of the at least one diversity/MIMO modem interfaced to one of the at least two user-data interfaces. The radio frequency switch is communicatively coupled to the control board via a modem-select interface and the selected one of the at least one diversity/MIMO modem. The radio frequency switch communicatively couples one of at least one diversity/MIMO antenna on the vehicle to the selected one of the at least one diversity/MIMO modem based on a control signal. | 2012-02-09 |
20120033719 | TRANSMITTER AND CONTROL METHOD FOR TRANSMITTING AND CALIBRATING A PHASE SIGNAL AND AN AMPLITUDE SIGNAL - A transmitter for transmitting and calibrating a phase signal and an amplitude signal. The transmitter comprises a phase modulation path, an amplitude modulation path, and a control unit. The phase modulation path transmits the phase signal. The amplitude modulation path transmits the amplitude signal. The control unit delays the signal on at least one of the phase modulation path and the amplitude modulation. | 2012-02-09 |
20120033720 | Digital Interface Between a RF and Baseband Circuit and Process for Controlling Such Interface - Process for controlling the switching of the data rate at a digital interface exchanging data and control messages between a Radio Frequency (RF) circuit and a digital circuit, comprising the steps of: setting by default the data rate to a low speed (LS) rate having a density presenting a first lobe being inferior to the frequency band considered in said RF circuit so as to prevent desensitization of the LNAs by the noise produced by said digital interface; storing the data and control messages message into a FIFO and monitoring the level of said FIFO; whenever the level of said FIFO reaches a predetermined threshold value, then controlling said interface to switch to a second high speed (HS) rate in order to flush said FIFO. In one embodiment, the LS frequency is set to a value of 832 MHz, thus preventing simultaneously desensitization of the GSM band and also the GPS band. | 2012-02-09 |
20120033721 | Receiver with ICI Noise Estimation - The invention concerns receive circuitry for demodulating an input signal received from a transmission channel, the receive circuitry having a decision feedback equalizer ( | 2012-02-09 |
20120033722 | Time-Domain Link Adaptation - Embodiments of the invention provide time-domain link adaptation in power line communications. In one embodiment, the cyclic prefix length and position is adjusted with an OFDM symbol to overlap a periodic impulse noise pulse, thereby allowing the data carried in the symbol to be detected at a receiver. The cyclic prefix may be adjusted to provide a pattern that yields an integer number of OFDM symbols in one zero crossing period. The data rate used for the symbols overlapping the zero-crossing period may be zero or very low. A high data rate may be used for symbols outside the zero-crossing period because those symbols will not be affected by the periodic impulse noise. | 2012-02-09 |
20120033723 | METHOD, PRE-CODING APPARATUS AND WIRELESS COMMUNICATION SYSTEM FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COLLABORATIVE COMMUNICATION - A method for multiple-input multiple-output (MIMO) collaborative communication in a wireless communication system includes at least one user equipment and M base stations performing collaborative communication with the user equipment. Here, M is an integer that is greater than or equal to 2. The method includes the following processes for each user equipment: a first level of MIMO pre-coding process is performed for each base station to acquire each first level of pre-coding matrix corresponding to each base station; a second level to the X-th level of MIMO pre-coding process is performed sequentially to acquire the second level to the X-th level of pre-coding matrices of the corresponding base stations. Here, X is an integer that is greater than or equal to 2. A pre-coding device, a user equipment and a wireless communication system related to the method are also provided. | 2012-02-09 |
20120033724 | METHOD AND SYSTEM FOR SELECTIVE EQUALIZATION ENABLEMENT BASED ON MODULATION TYPE - Aspects of a method and system for selective equalization enablement based on modulation type may be found in a method for processing radio frequency (RF) signals received via a RF channel, detecting a modulation type of at least a portion of the received RF signals, and determining whether to enable or disable an equalization circuit for processing at least a subsequent portion of the received RF signals based on the detected modulation type; and selecting one of a plurality of inputs to a selector based on the detected modulation type, wherein the plurality of inputs comprise the at least a subsequent portion of the received signals and an output signal generated by the equalization circuit. | 2012-02-09 |
20120033725 | SIGNAL PROCESSING SYSTEM AND METHOD FOR CALIBRATING CHANNEL SIGNALS SUPPLIED FROM AN ARRAY OF SENSORS HAVING DIFFERENT OPERATING CHARACTERISTICS - In a signal processing system, a set of channel signals from an array of sensors of different operating characteristics are processed in calibration circuitry that calculates individual average values of the channel signals and calculates an average of the individual average values of channel signals as a reference value. Reciprocal calculators calculate reciprocal values of the individual average values of the channel signals. Scaling circuitry scales the reciprocal values by the reference value to produce a set of amplitude calibration signals and scales the channel signals by the calibration signals respectively. As a result, the channel signals are normalized by their own average values and scaled by the reference value to produce a set of calibrated channel signals. | 2012-02-09 |
20120033726 | DECISION FEEDBACK EQUALIZER, RECEIVING CIRCUIT, AND DECISION FEEDBACK EQUALIZATION PROCESSING METHOD - A decision feedback equalizer includes: L equalization calculation circuits to perform an equalization calculation of a first sample of input data for each of M combinations of data decision values of a second sample sampled from the input data before sampling the first sample; a first logic circuit to generate first M logical values by selecting and arranging calculation values of M calculation values calculated by at least one equalization calculation circuit among the L equalization calculation circuits based on a data decision value for a third sample sampled before sampling the first data; and a selection circuit to select one of the first M logical values based on a data decision value for a fourth sample sampled before sampling the third sample, and to output the selected logical value as a data decision value of the first sample. | 2012-02-09 |
20120033727 | EFFICIENT VIDEO CODEC IMPLEMENTATION - A device and a method are provided. The device may include: a first encoder arranged to apply a first type encoding process on an input frame element to provide a first type encoded frame element; the input frame elements belong to an input frame; a second encoder arranged to apply a second type encoding process on the input frame element to provide a second type encoded frame element; wherein the first type encoding process differs from the second type encoding process by a degree of expected loss of data; a control circuit arranged to select a selected frame element out of the first and second type encoded frame elements; a memory unit arranged to store information about the selected frame element; and an output interface arranged to output the selected frame element. | 2012-02-09 |
20120033728 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGES BY ADAPTIVELY USING AN INTERPOLATION FILTER - The present invention relates to a method and to an apparatus for encoding and decoding images by adaptively using an interpolation filter in consideration of the characteristics of input images. The apparatus of the present invention comprises a prediction block-generating unit including a selector for adaptively selecting an interpolation filter for generating a prediction block in consideration of the context information of an input image block, a filter bank in which groups of interpolation filters are stored in correspondence with the context information, and a specific interpolation filter which is selected from the filter bank in accordance with the control of the selector, and which interpolates a reference image block associated with the input image block. | 2012-02-09 |
20120033729 | Method and System for Improving Compressed Image Chroma Information - Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color component of a color video image is used that is higher than the resolution for a blue color component of the color video image. Another aspect includes utilizing a lower or higher value of a quantization parameter (QP) for one or more chroma channels as compared to the luminance channel. Another aspect is use of a logarithmic representation of a video image to benefit image coding. Another aspect uses more than two chroma channels to represent a video image. | 2012-02-09 |
20120033730 | RANDOM ACCESS POINT (RAP) FORMATION USING INTRA REFRESHING TECHNIQUE IN VIDEO CODING - A random access point can be generated in a stream of coded digital pictures containing a plurality of predictive coded frames in which one or more subsections of each frame are intra coded. A patch frame can be formed from intra-coded subsections in identified consecutive predictive-coded frames. The patch frame can be used as a synthetic random access point. | 2012-02-09 |
20120033731 | VIDEO ENCODING APPARATUS AND VIDEO DECODING APPARATUS - While maintaining a high degree of freedom in choosing partition sizes and transformation sizes adapted for local characteristics of videos, the amount of metadata is decreased. A video encoding apparatus ( | 2012-02-09 |
20120033732 | INTERPOLATION OF VIDEO COMPRESSION FRAMES - Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation. | 2012-02-09 |
20120033733 | INTERPOLATION OF VIDEO COMPRESSION FRAMES - Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation. | 2012-02-09 |
20120033734 | INTERPOLATION OF VIDEO COMPRESSION FRAMES - Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation. | 2012-02-09 |
20120033735 | INTERPOLATION OF VIDEO COMPRESSION FRAMES - Coding techniques for a video image compression system involve improving an image quality of a sequence of two or more bi-directionally predicted intermediate frames, where each of the frames includes multiple pixels. One method involves determining a brightness value of at least one pixel of each bi-directionally predicted intermediate frame in the sequence as an equal average of brightness values of pixels in non-bidirectionally predicted frames bracketing the sequence of bi-directionally predicted intermediate frames. The brightness values of the pixels in at least one of the non-bidirectionally predicted frames is converted from a non-linear representation. | 2012-02-09 |
20120033736 | IMAGE PROCESSING DEVICE AND METHOD - The present invention relates to an image processing device and method which enable encoding efficiency in intra prediction to be improved. | 2012-02-09 |
20120033737 | IMAGE PROCESSING DEVICE AND METHOD - The present invention relates to an image processing device and method that can suppress decrease in a prediction efficiency accompanied with a secondary prediction. | 2012-02-09 |
20120033738 | VIRTUAL FRAME BUFFER SYSTEM AND METHOD - A method encodes or decodes a frame (also file), such as a video, graphic, media, or other frame or data, representing a real-time graphic output from a frame buffer, output by a video camera, or another file or data. The file includes frames each comprising macroblocks. Reference frame buffers (PFTs), virtual frame buffer tables (VFTBs) of equal number to the PFTs, each VFTB corresponds to a respective PFT, and respective sectors of each PFT for respective macroblocks are created. Frames of the file are encoded/decoded by successive encode/decode of macroblocks. A pointer is created in the VFBT associated with the PFT rather than encoding/decoding any matching macroblock. The pointer and its reference are relied on for each already encoded/decoded macroblock retained in the PFT. Processing, memory, bandwidth and power requirements for encoding or decoding are reduced. | 2012-02-09 |
20120033739 | Error Concealment In A Video Decoder - The error concealment technique disclosed herein relates to the use of existing information by the decoder to conceal bitstream errors regardless of what the encoder does. Examples of existing information include, for example, the previous reference frame, macroblock information for the previous reference frames, etc. Another aspect of the system described herein relates to the steps that the encoder can take to enhance the decoder's ability to recover gracefully from a transmission error. Exemplary steps that can be taken by the encoder include intra walk around and sending GOB headers. Although these encoder techniques can provide greatly enhanced results, they are not strictly necessary to the system described herein. | 2012-02-09 |
20120033740 | ROBUST DIGITAL COMMUNICATION SYSTEM - Normally ordered robust VSB data are reordered in accordance with a first interleave to produce reordered robust VSB data. The reordered robust VSB data and ATSC data are reordered in accordance with a second interleave to produce normally ordered robust VSB data and reordered ATSC data. The normally ordered robust VSB data and reordered ATSC data are time multiplexed for transmission to a receiver. The receiver discards the reordered ATSC data or the normally ordered robust VSB data depending upon receiver type or user selection. A robust VSB receiver is able to process the normally ordered robust VSB data upstream of an outer decoder without an interleave thereby avoiding the delay associated with an interleave. | 2012-02-09 |
20120033741 | DECODING OF A DIGITAL SIGNAL COMPRISING AT LEAST ONE SAMPLE - The invention concerns the decoding of a digital signal comprising at least one encoded digital image, a digital image being represented by a plurality of samples. The decoding method comprises, when a part of one said encoded digital image to be decoded is missing, applying a first decoding to the encoded digital image having the missing part so as to obtain a first decoded image, the first decoding involving setting a missing sample, being one of said samples in said missing part, to a first value. A second decoding is applied to said first decoded image using additional data, derived by the encoder from at least part of the encoded digital image and usable during decoding to correct the encoded digital image, to obtain a partially corrected symbol representative of said sample, said partially corrected symbol comprising at least one unknown bit. Finally, a second value for said missing sample is obtained based upon said first value and said partially corrected symbol. Thanks to this method, even a partial correction using additional data can be used to improve the values of missing samples of a digital image at the decoder side. As a result, the quality of reconstruction of missing parts of an image can be improved. | 2012-02-09 |
20120033742 | TWO-STAGE ENTROPY DECODING - The subject matter of this specification can be implemented in, among other things, a method of decoding video data that includes decoding compressed input video data using a first entropy coding technique to obtain first decoded data. The method further includes re-encoding the first decoded data using a second entropy coding technique that is different from the first entropy coding technique to obtain re-encoded data. The method further includes storing the re-encoded data in a storage device. The method further includes decoding the re-encoded data using the second entropy coding technique to obtain second decoded data. | 2012-02-09 |
20120033743 | SYSTEM AND METHOD FOR GENERATING CODED VIDEO SEQUENCES FROM STILL MEDIA - The invention provides a system and method that transforms a set of still/motion media (i.e., a series of related or unrelated still frames, web-pages rendered as images, or video clips) or other multimedia, into a video stream that is suitable for delivery over a display medium, such as TV, cable TV, computer displays, wireless display devices, etc. The video data stream may be presented and displayed in real time or stored and later presented through a set-top box, for example. Because these media are transformed into coded video streams (e.g. MPEG-2, MPEG-4, etc.), a user can watch them on a display screen without the need to connect to the Internet through a service provider. The user may request and interact with the desired media through a simple telephone interface, for example. Moreover, several wireless and cable-based services can be developed on the top of this system. In one possible embodiment, the system for generating a coded video sequence may include an input unit that receives the multimedia input and extracts image data, and derives the virtual camera scripts and coding hints from the image data, a video sequence generator that generates a video sequence based on the extracted image data and the derived virtual camera scripts and coding hints, and a video encoder that encodes the generated video sequence using the coding hints and outputs the coded video sequence to an output device. The system may also provide customized video sequence generation services to subscribers. | 2012-02-09 |
20120033744 | METHOD FOR TRANSMITTING DISCRETE ELECTRICAL SIGNALS - The invention relates to methods for transmitting information, and specifically to communication interfaces of electronic devices. The method makes it possible to increase the permissible number of transmitters power-supplied from a communication line, raise the distance and reliability of communication, and obtain better conditions of signal reception from differently located transmitters owing to switching off the current of power supply of transmitters and, accordingly, separating the current of signal transmission from the total current running along the communication line. Each transmitter is provided with its internal secondary power supply charged from the communication line. The voltage of the communication line power supply is decreased prior to signal transmission and restored upon completion of signal transmission. | 2012-02-09 |
20120033745 | Power device and safety control method thereof - An air conditioner includes at least one indoor unit and a wired controller connected to the indoor unit through two lines to receive power from the indoor unit and to perform data communication with the indoor unit. Each of the indoor unit and the wired controller includes a communication unit that modulates a low-frequency communication signal into a high-frequency communication signal and transmits the high-frequency signal and demodulates a received high-frequency signal into a low-frequency signal. When a plurality of indoor units and a wired controller perform communication, a communication signal is transmitted after being modulated into a high-frequency signal and linking the high-frequency signal with DC power. This reduces the inductance of an inductor required to separate the linked high-frequency signal into DC power and a communication signal and the capacitance of a capacitor required to link the signal with DC power, reducing PCB size and inductor and capacitor costs. | 2012-02-09 |
20120033746 | CABLE SYSTEM WITH SELECTIVE DEVICE ACTIVATION FOR A VEHICLE - The present invention relates to a cable system ( | 2012-02-09 |
20120033747 | Systems and Methods for Powering Circuits for a Communications Interface - Embodiments include systems and methods of powering data communications transmitter circuitry using current sinked from biasing circuitry used to bias a transmission line between the data communications transmitter circuitry and data communications receiver circuitry. In some embodiments, the current sinked from the biasing circuitry is sourced by a power supply configured to power the data communications receiver circuitry. The current sinked from the biasing circuitry is then re-used to power the data communications transmitter circuitry. The data communications transmitter circuitry can be operated using less power overall than the prior art by re-using the current first used to bias the transmission line to power the data communications transmitter circuitry. Various embodiments include HDMI transceivers, DVI transceivers, and DisplayPort transceivers. | 2012-02-09 |
20120033748 | Transmission circuit and communication system - A transmission circuit includes: a plurality of lane blocks arranged in parallel to each other configured to convert parallel data supplied from a corresponding lane into serial data and output the serial data; and a clock enabler block including at least one clock enabler for outputting a drive clock phase-locked with a reference clock to the plurality of lane blocks after a plurality of cycles of the drive clock in response to an enable signal. Each of the plurality of lane blocks has a divider for dividing the drive clock supplied from the clock enabler block to generate a divide clock and a load signal, and a parallel-to-serial converter for converting parallel data supplied from the corresponding lane into serial data in synchronization with the divide clock and the load signal generated by the divider and the drive clock generated by the clock enabler block. | 2012-02-09 |
20120033749 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION DEVICE, PROGRAM, AND WIRELESS COMMUNICATION METHOD - There is provided a wireless communication device that includes a first communication portion that performs non-contact communication with an other wireless communication device and receives unit specific data indicating the other wireless communication device's communication function; a second communication portion that can communicate wirelessly faster than the first communication portion; a determination portion that determines, based on the unit specific data, whether the other wireless communication device's communication function is compatible with the second communication portion; and a format conversion portion that converts a format of transmission data that is transmitted to the other wireless communication device to a format that reduces the volume of the transmission data. If the determination portion determines that the other wireless communication device's communication function is not compatible with the second communication portion, the first communication portion transmits the transmission data to the other wireless communication device in the converted data format. | 2012-02-09 |
20120033750 | TRANSPORT BLOCK SIZE - Disclosed herein is a method, device, network and computer program product for transmitting data in transport blocks from the device on an uplink channel of the network. Information indicative of a current condition on the uplink channel is determined. Based on the determined information, a transport block size for use in transmitting data on the uplink channel is adapted and data is transmitted from the device on the uplink channel in transport blocks having the adapted transport block size. | 2012-02-09 |
20120033751 | CHANNEL ESTIMATION FOR A CONTROL CHANNEL IN AN OFDM SYSTEM - A method of channel estimation for a control channel in an OFDM system of the present invention includes the steps of: performing weighted averaging over time of input LS estimates of a plurality of channel condition matrices; performing frequency domain averaging on the input LS estimates; performing channel estimates on multiple subcarriers of pilot OFDM symbols from the frequency domain averaged input LS estimates; and performing channel estimates on multiple subcarriers of OFDM symbols in the control channel from the channel estimates on the subcarriers of pilot OFDM symbols. | 2012-02-09 |
20120033752 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - To lessen a disparity in stream mapping of transmission data when modulation data are mapped into a plurality of streams and when the plurality of streams are transmitted and received. In a wireless communication device, a stream mapper ( | 2012-02-09 |
20120033753 | Communication Method and Radio Transmitter - Radio transmission is performed even to a communication party whose bandwidth that can be used for transmission and reception is limited without having an influence of an offset of a DC component. A radio transmitter applied to an OFDMA communication system in which a plurality of different terminals performs communication using OFDM signals at the same time that includes a mapping part that allocates transmission power to each subcarrier, and also selects a subcarrier to which minimum power of the transmission power to be allocated is allocated and modulates transmission data in units of communication slots to output the modulated data; and a transmission part for transmitting radio signals including the modulated data using each of the subcarriers. | 2012-02-09 |
20120033754 | OFDM CHANNEL ESTIMATION METHOD AND APPARATUS - Smaller patterns of regularly-spaced pilot symbols are discerned from a larger pattern of irregularly-spaced pilot symbols transmitted in the time-frequency domain. Accordingly, the irregularly-spaced pilot symbols can be partitioned into at least two different groups of regularly-spaced pilot symbols in the time-frequency domain. Each group of regularly-spaced pilot symbols is individually processed with lower complexity and the results combined to generate an accurate time-frequency channel response estimate. According to an embodiment, a set of irregularly-spaced pilot symbols is transmitted over a time-frequency window. Channel response is estimated based on the pilot symbols by grouping the pilot symbols into subsets of regularly-spaced pilot symbols. An intermediate quantity is generated for each subset of regularly-spaced pilot symbols as a function of the pilot symbols included in the subset. The channel response is estimated over the time-frequency window as a function of the intermediate quantities. | 2012-02-09 |
20120033755 | Transmit Mode Switching for MIMO Base Stations - In a transmitter using at least two transmitting antennas a STTD transmitter is used in combination with a common pre-coding transmitter for power amplifying power balancing. A selector can be provided for selecting data/channels transmitted using STTD and common pre-coding such that for one channel type, STTD or common pre-coding is used whereas the combination of both STTD and common pre-coding is used for a different data/channel type. By selectively using both STTD and common pre-coding for power amplifier power balancing, an improved power balancing is achieved. At the same time, the STTD gain is obtained in the relevant cases but the STTD loss in other cases is avoided. | 2012-02-09 |