41st week of 2009 patent applcation highlights part 27 |
Patent application number | Title | Published |
20090252133 | MOBILE COMMUNICATION SYSTEM AND ACCESS GATEWAY HAVING PLURAL USER PLANE AGWS - In a mobile communication system including an access gateway (AGW) comprising a C-AGW for handling control messages and a plurality of U-AGWs for forwarding data packets, the C-AGW is provided with a management table indicating an address of U-AGW to be an endpoint of tunnel, in association with each of mobile station IDs. When a tunnel setup request message including a mobile station ID is received from one of base stations, the C-AGW searches the management table for the address of U-AGW corresponding to the mobile station ID and notifies the base station of the U-AGW address, and if the mobile station ID is not found in the management table, the C-AGW notifies the base station of an address of a particular U-AGW selected out of the U-AGWs, so that the base station establishes a tunnel for forwarding data packets toward the notified U-AGW. | 2009-10-08 |
20090252134 | METHODS AND SYSTEMS FOR A MOBILE, BROADBAND, ROUTABLE INTERNET - In embodiments of the present invention improved capabilities are described for a mobile broadband routable internet (MBRI) providing for carrier-grade, networked, broadband, IP-routable communication among a plurality of mobile devices, where the mobile devices may represent a plurality of nodes that are linked together through a mobile ad-hoc network (MANET). Mobile devices may operate as peers in a peer-to-peer network, with full IP routing capabilities enabled within each mobile device, thereby allowing routing of IP-based traffic, including deployment of applications, to the mobile device without need for infrastructure conventionally required for mobile ad hoc networks, such as cellular telephony infrastructure. Full IP-routing to mobile devices may allow seamless integration to the fixed Internet, such as through fixed or mobile access points, such as for backhaul purposes. Thus, the MBRI may function as a standalone mobile Internet, without connection to the fixed Internet, or as an IP-routable extension of another network, whether it be the Internet, a local area network, a wide area network, a cellular network, a personal area network, or some other type of network that is capable of integration with an IP-based network. | 2009-10-08 |
20090252135 | EFFICIENT POWER MANAGEMENT IN WIRELESS LOCAL AREA NETWORKS - A method of providing power management in a Wireless Local Area Network (WLAN) is presented. The method includes receiving a Traffic Indication Map (TIM) at a station, indicating the presence of buffered frames, associated with any AC, for the station at an Access Point (AP). The method further includes sending, by the station, one of an uplink data frame if one is buffered, and a null frame to retrieve the buffered frames from said AP. The station remains awake to receive frames from the AP until a downlink frame is received containing an indication that it is the last frame to be transmitted in the service period. The method may further include determining at the end of service period whether there are more frames remaining buffered for the station at the AP. | 2009-10-08 |
20090252136 | SYSTEM AND METHOD FOR EFFICIENTLY ROUTING INFORMATION - A hierarchical communication system is described in which two wireless local area networks exhibiting substantially different characteristics are employed to link inherently portable or mobile computer devices. A series of radio base stations make up a infrastructure network. The infrastructure network and at least one portable computer device make up the first local area network. The communication on the first local area network is accomplished by spread spectrum frequency hopping communication A second local area network allows for radio communication between a portable computer device and peripheral devices with built-in transceivers utilized by the portable computer device. The communication in each local area network is controlled by a reservation access communication protocol. The communication protocol facilitates frequency hopping synchronization and supports adaptive data rate selection based upon the quality of communication on the communication channel. The communication protocol prevents interference between communication on the first local area network and communication on the second local area network. In a premises LAN, a series of radio base stations and a backbone LAN make up an infrastructure network. The infrastructure network and at least one mobile computing device make up a higher-power LAN, utilizing a frequency hopping protocol. A lower-power LAN allows for radio communication between a mobile computing device and peripheral devices, utilizing a single-frequency spread spectrum protocol. A vehicular LAN provides for short-range communication between a vehicle terminal and a portable terminal. When out of direct RF range of the premises LAN, the vehicle terminal maintains indirect communication when necessary with the premises LAN via one of several alternate RF channels. A microprocessor, located inside radio units which participate in multiple LAN's, selects the appropriate protocol, frequency band and power level for communicating through the network. | 2009-10-08 |
20090252137 | SCANNING FOR NETWORK CONNECTIONS WITH VARIABLE SCAN RATE - A wireless communication terminal includes a radio frequency (RF) transceiver and a baseband processing circuit, which is arranged to detect an indication of a rate of movement of the terminal. The baseband processing circuit is coupled to cause the RF transceiver to scan periodically for access points that are available to communicate with the mobile terminal at a scan rate that is selected responsively to the indication, and upon detecting an available access point, to establish a wireless connection between the terminal and the available access point. | 2009-10-08 |
20090252138 | ESTIMATION OF SPEED AND DIRECTION OF TRAVEL IN A WLAN POSITIONING SYSTEM USING MULTIPLE POSITION ESTIMATIONS - A method for estimating the speed and bearing of a Wi-Fi enabled device using WLAN radio signals in a WLAN based location service is provided. A method used to estimate a speed of travel of a Wi-Fi enabled device comprises the Wi-Fi enabled device receiving signals transmitted by Wi-Fi access points in range of the Wi-Fi enabled device, and using the signals to estimate the speed of and/or direction of travel of the Wi-Fi enabled device. | 2009-10-08 |
20090252139 | Radio-Access Method for Mobile-Radio Networks, Related Networks and Computer Program Product - A mobile-radio network includes radio base stations providing radio coverage to the users of the network via antenna elements, wherein the antenna elements are equipped with at least one first communication channel and at least one second communication channel. The first communication channel provides a first layer of individual microcell radio coverage for the antenna elements. The second communication channel is made common to groups of the antenna elements and provides a second layer of virtual macrocell radio coverage, wherein the coverage of each virtual macrocell aggregates the microcell radio coverages of the antenna elements included in the respective group. | 2009-10-08 |
20090252140 | WIRELESS COMMUNICATION SYSTEM, TERMINAL STATION, AND WIRELESS COMMUNICATION METHOD - The invention includes a wireless communication system including a control station which transmits a wireless signal by one of a plurality of schemes, and a terminal station which receives the transmitted wireless signal using a plurality of directional antennas by one of a plurality of schemes. The control station repeatedly transmits a wireless signal while sequentially switching the plurality of schemes. The terminal station switches the plurality of schemes at a cycle different from the switching cycle of the control station, changes the directivity direction of the directional antenna every time the terminal station receives all wireless signals transmitted by the plurality of schemes, and detects the reception state of each of the wireless signals which have been transmitted by the plurality of schemes and received in the directivity directions of the directional antenna. | 2009-10-08 |
20090252141 | Method and Apparatus for Transmitting and Receiving High Speed Data Using Code Division Multiple Access Channels - The present invention describes a spread spectrum communication system wherein the frequency of carriers and the code channels of the carriers or both for transmission to a given remote station user vary in time. This provides for a direct sequence spectrum communications system which changes frequency or code channel according to a predetermined pattern. The code channels and frequencies can be determined in accordance with a deterministic function or based upon a subset of the data to be transmitted. A receiver structure is also described for receiving the same. | 2009-10-08 |
20090252142 | COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, AND DATA TRANSMISSION METHOD - More than one communication device that is to simultaneously transmit identical data through multiple data transmissions using different radio wave multiplex types is determined based on the link qualities of a plurality of communication devices. Then the multiple data transmissions are made by transmitting the identical data with synchronized timings at the determined communication apparatuses. The link qualities are determined by measuring received signal intensities, bit error rates, or frame error rates at the respective communication devices at the time of the multiple data transmissions using two radio wave multiplex types orthogonal to each other. | 2009-10-08 |
20090252143 | METHODS AND APPARATUS FOR DELAYED BLOCK ACKNOWLEDGEMENT IN A WIRELESS LOCAL AREA NETWORK (WLAN) - Methods and apparatus for delayed block acknowledgments in a WLAN. In an aspect, a method is provided for communication with one or more nodes. The method includes transmitting to the one or more nodes a block comprising data and a first bit indicating no acknowledgements for the data are to be transmitted from the one or more nodes. The method also includes determining whether a selected time location within a transmit time duration has been reached, wherein if the selected time location has been reached, transmitting to the one or more nodes a second bit indicating that the one or more nodes are to transmit one or more acknowledgements, respectively, for the data. The method also includes receiving at least one acknowledgment for the data within a remaining portion of the transmit time duration. | 2009-10-08 |
20090252144 | System and method for asynchronous wireless collision detection with acknowledgment for ad hoc wireless networks - The present disclosure relates generally to a system and method for asynchronous busy-tone multiple access with acknowledgement for ad hoc wireless networks. In one example, the method includes emitting a tone after determining that a transmission is incoming from a sending node. An initial portion of a packet comprising the transmission is received while emitting the tone, where the initial portion contains a destination address of the packet. The emitting of the tone is stopped if the received destination address does not match an address of the receiving node. A remaining portion of the packet is received while continuing to emit the tone if the received destination address matches the address of the receiving node. | 2009-10-08 |
20090252145 | Method and Apparatus for Scheduling in a Wireless Network - Techniques for scheduling flows and links for transmission are described. Each link is an oriented source-destination pair and carries one or more flows. Each flow may be associated with throughput, delay, feedback (e.g., acknowledgments (ACKs)) and/or other requirements. A serving interval is determined for each flow based on the requirements for the flow. A serving interval is determined for each link based on the serving intervals for all of the flows sent on the link. Each link is scheduled for transmission at least once in each serving interval, if system resources are available, to ensure that the requirements for all flows sent on the link are met. The links are also scheduled in a manner to facilitate closed loop rate control. The links are further scheduled such that ACKs for one or more layers in a protocol stack are sent at sufficiently fast rates. | 2009-10-08 |
20090252146 | CONTINUOUS NETWORK CODING IN WIRELESS RELAY NETWORKS - Described is continuous network coding, in which a relay sends probability data comprising a continuous number for use as parity data. The node receives streams of bits sent from sources towards a destination, and computes the probability data based on current noise data and/or fading data. A selected set of the bits (all or some subset thereof) are combined, e.g., XOR-ed or concatenated, and send to the destination. Phase modulation is performed to convey probability information based on the probability data. The destination demodulates the signal to obtain the probability information, and combines the probability information with the data directly received from sources to perform joint decoding. The number of bits in the set of selected bits may be adaptively chosen based on current channel conditions, e.g., increased when the channel conditions from the sources directly to a destination are poor relative to the channel conditions via the relay. | 2009-10-08 |
20090252147 | STORAGE SERVER IMPLEMENTED BY INTERNET SMALL COMPUTER SYSTEMS INTERFACE IN LINUX SYSTEM - A storage server implemented by an internet small computer systems interface (iSCSI) in a Linux system includes a network subsystem and a small computer systems interface (SCSI) subsystem, and an iSCSI module and a SCSI module are respectively embedded in the network subsystem and SCSI subsystem. When receiving a link request packet from an initiator, the network subsystem creates a SCSI identifiable format packet for the SCSI subsystem by the embedded iSCSI module and the embedded SCSI module. The iSCSI module and SCSI module are respectively embedded in the network subsystem and SCSI subsystem. The iSCSI module and SCSI module can be immediately called without waiting the switch of processing, thereby solving performance bottleneck in the storage server and improving the operation speed of the storage server. | 2009-10-08 |
20090252148 | Use of DPI to extract and forward application characteristics - Various exemplary embodiments are a method and related device and computer-readable medium including one or more of the following: receiving a packet sent from the source node to the destination node; associating the packet with an active flow by accessing information in the packet; performing deep packet inspection (DPI) to identify an application associated with the active flow; determining a classification for the packet based on characteristics of the identified application; associating, with the packet, information identifying the classification; forwarding the packet including the information identifying the classification towards the destination node; and performing processing on the packet at a downstream device by extracting the classification from the packet. | 2009-10-08 |
20090252149 | METHOD FOR PROCESSING BEARER CONTROL - A method for bearer control includes: a first control entity routes a call which is routed from a TDM bearer based network domain or originated by an intra-office POTS subscriber, into an IP bearer based network domain; a second control entity receives the call which is routed back from said IP bearer based network domain and is destined to the TDM bearer based network domain or the intra-office POTS subscriber; when it's determined that a media stream that enters into and exits from said IP bearer based network domain is exchanged on the same media gateway, the first and the second control entities perform a media negotiation during the SIP session to select a same media codec type as the one used on TDM circuits or subscriber lines at two sides, and control a corresponding media gateway to transmit the media stream according to said selected media codec type. | 2009-10-08 |
20090252150 | System and Method for Secure Transaction Routing on Demand - A secure transaction routing system, which includes a transaction terminal for generating a routing type based on a message received from a transaction instrument, is provided. Many host servers that link to the transaction terminal through one or more communication gateways are also included. The communication gateways route a call session to at least one of the many host servers based on the routing type. | 2009-10-08 |
20090252151 | Method and Network Elements for Content Duplication in Packet Networks - There is provided method for duplicating communications content in a telecommunications network, wherein the content is transported in a layered communications protocol comprising at least one protocol layer. The method comprises receiving first data identifying the content to be duplicated, receiving second data identifying a lowest protocol layers to be duplicated, and duplicating the content as identified by said first data including all protocol information of the lowest protocol layer as identified by said second data, further including all higher layer protocol information. An advantage thereof is that, by means of the second data, the protocol depth of the duplication may be influenced. For example, if the content is transported by the protocols RTP (real-time protocol), UDP (user datagram protocol), and IP (internet protocol), then by means of the second data the content alone, or the content plus the entire RTP protocol information (of which the content is the payload), or the entire IP traffice associated with the content to be duplicated could be selected for duplication. A preferred application of the duplication method is lawful interception (LI), wherein the duplicated content and protocol information along with labels and/or parameters, if applicable, is forwarded to a monitoring facility or monitoring center. | 2009-10-08 |
20090252152 | METHOD OF VoIP NUMBER PORTABILITY USING WIRELESS DEVICE - A method of processing a number portability call, the method including: transmitting a call request message to a donor network server based on dialed number information of a called terminal; receiving a response message according to number portability of the called terminal from the donor network server, in correspondence to the call request message; detecting routing number information of the called terminal based on the dialed number information, according to reception of the response message; and performing call setup to a recipient network server associated with the called terminal based on at least one of the dialed number information and the routing number information is provided. | 2009-10-08 |
20090252153 | METHOD FOR PROVIDING EARLY-MEDIA SERVICE BASED ON SESSION INITIATION PROTOCOL - The present invention relates to a method of providing an early media service based on a session initiation protocol (SIP), wherein early media of a multimedia form can be provided under SIP-based B2BUA mode operation. According to the present invention, in a case where early media are provided to an originating terminal when a call connection with a terminating terminal is established at the request of the originating terminal, the early media is provided in the form of multimedia data, such as text, image, moving image, flash animation and the like, as well as audio data, and thus users desires are fulfilled and users, satisfactions are maximized. In addition, with individual operation management of the terminating terminal and the originating terminal according to B2BUA mode operation based on the session initiation protocol and an early session initiation with the originating terminal, an early media service can be normally provided to the originating terminal even when the terminating terminal is in an abnormal operation state. | 2009-10-08 |
20090252154 | SYSTEM FOR INTEGRATING AND TRANSMITTING NETWORK PHONE SIGNALS AND METHOD APPLIED THEREIN - A system for integrating and transmitting network phone signals and a method applied therein. The system and method provide a medium server device applicable between network phone client ends and network phone message exchange system, the medium server device enabling the network phone client ends and the network phone message exchange system to process message exchanges between TCP port 80 and UDP port 5060 and/or UDP port 1024˜65535 transmission protocols. Accordingly, a network phone client end is capable of directly communicating with other local phone client ends and/or network phone client ends in the UDP port 80 transmission protocol. | 2009-10-08 |
20090252155 | REDUNDANT GATEWAY SYSTEM - First and second gateway devices perform TDM conversion on data from multiple packets supplied from the packet networks to generate TDM signals. A TDM exchange unit switches to the first gateway device from the second gateway device to supply the TDM network with only the TDM signal generated by the first gateway device. When the TDM exchange unit switches to the first gateway device from the second gateway device, a jitter buffer controller of the second gateway device notifies the first gateway device of the packet read order determined by the jitter buffer controller of the second gateway device, and the first gateway device determines a packet read order as the packet read order determined by the jitter buffer controller of the second gateway device. | 2009-10-08 |
20090252156 | Voice over internet protocol switch devices - A VOIP switch device has a first terminal ( | 2009-10-08 |
20090252157 | Method of setting up a call in an internet protocol multimedia subsystem network - The present invention is directed to a method of setting up a call from an originating user in an internet protocol (IP) multimedia subsystem (IMS) network. The originating user provides a signalling message containing an originating identifier of the user to a first node of the network. According to the method, a first node of the network receives the signalling message. The first node performs a verification on whether the originating identifier is associated with a wildcard identifier, wherein the wildcard identifier identifies a plurality of identifiers which are entitled to using a group service. If the originating identifier is associated with a wildcard identifier, the first node forwards the wildcard identifier and the originating identifier to a further node for setting up the call. | 2009-10-08 |
20090252158 | APPLICATION SERVER ALLOWING THE DISTRIBUTION OF A CALL INTENDED FOR A TERMINAL CONNECTED TO A GATEWAY TO ALL TERMINALS CONNECTED TO THIS GATEWAY - According to the invention, an application server (AS) for a telecommunication network (IPN) supporting the SIP protocol, includes:
| 2009-10-08 |
20090252159 | SYSTEM AND METHOD FOR PROCESSING TELEPHONY SESSIONS - In one embodiment, the method of processing telephony sessions includes: communicating with an application server using an application layer protocol; processing telephony instructions with a call router; and creating call router resources accessible through a call router Application Programming Interface (API). In another embodiment, the system for processing telephony sessions includes: a call router, a URI for an application server, a telephony instruction executed by the call router, and a call router API resource. | 2009-10-08 |
20090252160 | Programmable Management IO Pads for an Integrated Circuit - A multi-port SERDES transceiver includes multiple parallel and serial ports, and the flexibility to connect any one of the parallel or serial ports to another parallel or serial port. The ports include programmable pads that are capable of supporting multiple different data protocols, timing protocols, electrical specifications, and input-output functions. A management data IO pad also enables the transceiver to support different electrical requirements and data protocols at the same time. The substrate layout of the transceiver is configured so that the parallel ports and the serial ports are on the outer perimeter. A logic core is at the center, where the logic core operates the serial and parallel data ports, and the bus that connects the data ports. The bus can be described as a “ring” structure (or donut “structure”) around the logic core, and is configured between the logic core and the data ports. | 2009-10-08 |
20090252161 | Method And Systems For Routing A Data Packet Based On Geospatial Information - Methods and systems are described for routing a data packet based on geospatial information. In one aspect, a data packet is received, at a receiving network node. The data packet was transmitted by a source host for transmitting to a destination host. Further, a level of trust for a portion of a network path from the source host to the destination host is determined. The portion of the network path has a geospatial region. The level of trust is based on trust information associated with the geospatial region. Also, routing information is determined based on the level of trust. Further, a network interface of the receiving network node for transmitting the data packet via a destination network path is identified based on the routing information. Still further, the data packet is routed via the identified network interface. | 2009-10-08 |
20090252162 | TRANSMISSION APPARATUS, TRANSMISSION METHOD, AND PROGRAM - Disclosed herein is a transmission apparatus including a receiving unit configured to receive ACK packets transmitted from a reception apparatus in response to transmission data items, an ACK storing unit configured to store a latest ACK packet which is last received among the ACK packets, and a TCP/IP processing unit configured to perform processing of receiving an ACK packet in accordance with the latest ACK packet supplied from the ACK storing means at a predetermined timing. | 2009-10-08 |
20090252163 | Grammar and Ontology for Multicast Communication - A formal language for specifying and implementing multicast communication, named MSIL, comprises a set of constructs that are specific to multicast communication. The language provides semantic structures for repetitive, conditional, sequential, and parallel execution. It supports message passing, is extendible and domain independent. The language is flexible enough to be used for translating high-level multicasting requirements into abstractions, as well as implementing low-level systems supporting these requirements. MSIL can also be used as a command and communication language to control node behavior for multicast communication. The requirements, syntax and semantics of MSIL, together with the ontology for multicast communication are described. A selected set of high-level requirements, for multicast network management, is analyzed to determine the corresponding MSIL specifications. A simplified QoS Manager, capable of providing multicast QoS to a restricted wireless network, has been coded in MSIL to demonstrate its suitability for system development. | 2009-10-08 |
20090252164 | LAYERED MULTICAST AND FAIR BANDWIDTH ALLOCATION AND PACKET PRIORITIZATION - Embodiments include an overlay multicast network. The overlay multicast network may provide a set of features to ensure reliable and timely arrival of multicast data. The embodiments include a congestion control system that may prioritize designated layers of data within a data stream over other layers of the same data stream. Each data stream transmitted over the network may be given an equal share of the bandwidth. Addressing in routing tables maintained by routers in the may utilize summarized addressing based on the difference in location of the router and destination address. Summarization levels may be adjusted to minimize travel distances for packets in the network. Data from high priority data stream layers may also be retransmitted upon request from a destination machine to ensure reliable delivery of data. | 2009-10-08 |
20090252165 | METHOD AND SYSTEM FOR DETERMINING THE EXISTENCE OF BROADCAST AND MULTICAST FRAMES BUFFERED IN AN ACCESS POINT - A method and a system for determining the existence of broadcast/multicast frames buffered in an access point (AP) are used to avoid wakening a station (STA) unnecessarily. The method includes: when receiving broadcast/multicast frames sent from a service network and/or multicast group, an AP sets a broadcast/multicast indication bit that associates the service network and/or multicast group to the valid state and sends frames that carry the broadcast/multicast indication bit to a STA; the STA determines whether there are broadcast/multicast frames buffered in the AP according to the associated service network and/or multicast group and the received broadcast/multicast indication bit. Embodiments of the present disclosure also disclose an AP and a STA. The AP can identify whether there are broadcast/multicast frames buffered in an AP. | 2009-10-08 |
20090252166 | NETWORK ELEMENTS INTERCONNECTION - A method for enabling network elements (NEs) operating at a bit rate R | 2009-10-08 |
20090252167 | QUEUE PROCESSING METHOD - A method of processing data packets, each data packet being associated with one of a plurality of entities. The method comprises storing a data packet associated with a respective one of said plurality of entities in a buffer, storing state parameter data associated with said stored data packet, the state parameter data being based upon a value of a state parameter associated with said respective one of said plurality of entities, and processing a data packet in said buffer based upon said associated state parameter data. | 2009-10-08 |
20090252168 | MULTI-PLANE CELL SWITCH FABRIC SYSTEM - A multi-plane cell switch fabric system prevents a decrease of the effective switching capacity when switching the variable-length packets. Distribution units classify input variable-length packets for each address, arranges the packets by a first division length unit, divides the packets into fixed-length cell payloads by a second division length unit that is an integer multiple being twice or more as large as the first division length unit, and forms a fixed-length cell by providing destination information, a source ID, a sequential number, and packet head tail information to each of the cell payloads. The cells are distributed to all the switching units one by one whenever the cells are collected to be the same number as the plural switching units. The reordering units classify the cells, reorder the sequential number in an original order, and reassemble the packets by the packet head tail information of the cell. | 2009-10-08 |
20090252169 | SYSTEM FOR SUPPORTING COMMUNICATIONS AMONG ATM DEVICES, DEVICE FOR SUPPORTING DATA TRANSMISSION, METHOD FOR SENDING DATA, AND COMPUTER PROGRAM PRODUCT - A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface. | 2009-10-08 |
20090252170 | METHOD AND DEVICE OF LINK AGGREGATION AND METHOD AND SYSTEM FOR TRANSCEIVING MAC FRAMES - A method and a device of link aggregation and a method and a system for transceiving MAC frames are provided. The method includes: transmitting, by systems at two ends of a link, information of virtual local area networks (VLANs) of a port in a local end system to an opposite end system through message exchange; and determining, by the systems at the two ends of the link, the VLAN of the link respectively according to the received information of the VLAN of the port in the opposite end system and the information of the VLAN of the port in the local end system, and performing link aggregation according to the VLAN of the link. Thus, the networking flexibility is improved, the convenience of network design and network maintenance and management is improved, and the MAC frames having VLAN identifiers can be distributed to the corresponding VLAN links rapidly, accurately, and conveniently. | 2009-10-08 |
20090252171 | EXPRESS VIRTUAL CHANNELS IN A PACKET SWITCHED ON-CHIP INTERCONNECTION NETWORK - A method, router node, and set of instructions for using express virtual channels in a component network on a chip are disclosed. An input link | 2009-10-08 |
20090252172 | SYSTEM AND METHOD FOR SCHEDULING RESERVATION REQUESTS FOR A COMMUNICATION NETWORK - A process for scheduling reservation requests among a plurality of nodes on a network, includes examining a level of network communication activity of a first node to determine whether the first node is active; allocating a reservation request to the first node, but only if the first node is determined to be active; and repeating the process of examining and allocating for one or more subsequent nodes on the network. In one embodiment, the process can utilize thresholds to determine whether a network device is active and the thresholds can be based on, for example, recent network activity for the node being evaluated. | 2009-10-08 |
20090252173 | Method For Improving Efficiency Of Redundancy Protocols - A method for improving efficiency of redundancy protocols used in a network is provided. The network comprises a first router running a program instance of a router redundancy protocol in a master state at a first interface and a dynamic protocol at a second interface, and a second router running another program instance of the router redundancy protocol in a backup state at a first interface and the dynamic protocol at a second interface. The program instance at the second router takes over the roles of the program instance at the first router during a failure of the first router. The method comprises establishing an online status of the first router, initiating a routing convergence process by the dynamic protocol at the first router, and taking over the roles from the program instance at the second router by the program instance at the first router when the routing convergence process has ended. | 2009-10-08 |
20090252174 | MESSAGE IDENTIFICATION METHOD AND A RELAY NODE USED BY THE METHOD - A technology providing a message identification method that can accurately identify a message for reserving the resources of a new path when a path change occurs in a network and the like is disclosed. According to the technology, a step of a relay node | 2009-10-08 |
20090252175 | SYSTEM, METHOD AND PROGRAM FOR DISTRIBUTED EVENT DETECTION - A distributed event detection system for detecting a complex event by a distributed detection process, includes a plurality of broker nodes for routing events and a route node for distributing the complex event, wherein the route node comprises a detection formula decomposing unit which decomposes a complex event detection formula for detecting the complex event into a plurality of complex sub-event detection formulae; a sub-route node assignment unit which assigns a broker node as a sub-route node with respect to each of the complex sub-event detection formulae decomposed by the detection formula decomposing unit; and a complex event detecting unit which detects the complex event based on a complex sub-event detected by the sub-route node assigned by the sub-route node assignment unit. | 2009-10-08 |
20090252176 | Gateway Device - Provided is a gateway device for interconnecting an IEEE1394 network and an IP network, which automatically detects and operates an AV device connected to the IEEE1394 network from a player device connected to the IP network, thereby enabling the player device to watch and hear contents stored in the AV device. The gateway device interconnects a network, to which an AV/C installed IEEE1394 device is connected, and a network, to which a player device compliant with a UPnP is connected, and includes: a conversion unit for converting Plug-and-Play processing of the IEEE1394 device to each step of Plug-and-Play of the UPnP; a conversion unit for converting an action of a UPnP AV to an AV/C command of the IEEE1394 device; and a stream transfer unit for transferring stream data transmitted from the IEEE1394 device to the IP network. | 2009-10-08 |
20090252177 | Edge Side Assembler - Methods, systems, and apparatuses are disclosed for enabling a virtual personalized network. Communications are established with a personal digital gateway to control access, sharing, security, and/or management of up-to-date personalized data exchanged between or among a plurality of associated communications devices and/or communications networks. The associated communications devices are owned, operated, and/or accessed by a common user. | 2009-10-08 |
20090252178 | Method, apparatus and computer program for self-adjusting spectrum sensing for cognitive radio - A cognitive radio determines a frequency channel of a spectrum, determines from a locally stored association of individual channels to either of at least two categories (e.g., in use and backup, other is a third category) a selected category for the determined frequency channel. From the selected category is determined a time at which to sense the determined frequency channel. The determined frequency channel is then sensed at the determined time and results of the sensing may be transmitted. Timers may be associated with each of the categories and adjusted based on density of cognitive nodes. A timer for the in use category is shortest, a timer for the other category is longest, and a timer for the backup category is between shortest and longest. | 2009-10-08 |
20090252179 | Encapsulating Large Ethernet Frames - A method comprising receiving a data frame, encapsulating the received data frame into a reflected frame message (RFM) encapsulated frame, and if the received data frame causes the RFM encapsulated frame to exceed a maximum service data unit size, either the data frame is truncated or the data frame is split into two smaller frames and those two smaller frames are encapsulated by two separate RFM frames, wherein if a truncation flag is set to be true, the data frame is truncated to be encapsulated in one RFM. | 2009-10-08 |
20090252180 | DEVICE, SYSTEM AND METHOD FOR DATA TRANSFER OPTIMIZATION - Devices, systems and methods for data transfer optimization. A computing platform may, for example, modify a first property of a communication network in relation to an analysis of a second property of said communication network and a property of a data item. For example, a processor or a modem may dynamically modify a payload header suppression module to suppress a static portion of a data packet or an acknowledgment packet. | 2009-10-08 |
20090252181 | DISCOVERY FOR FIBRE CHANNEL OVER ETHERNET DEVICES - Techniques are provided for performing discovery in a Fibre Channel over Ethernet (FCoE) network. An FCoE Node (ENode) discovers the FCoE Forwarders (FCFs) connected to its network segment by transmitting a solicitation message to the multicast MAC address “All-FCF-MACs”. All FCFs receive packets with this multicast MAC address including the solicitation message that announces the presence of the ENode. Each FCF replies with a unicast advertisement message that provides the ENode with a MAC address of the responding FCF. The ENode builds a list of the FCFs available on its network segment and may then establish a virtual link with one or more of the FCFs through a Fabric Login (FLOGI) exchange. | 2009-10-08 |
20090252182 | DETERMINATIVE SEGMENTATION RESEGMENTATION AND PADDING IN RADIO LINK CONTROL (RLC) SERVICE DATA UNITS (SDU) - A transmission entity (e.g., user equipment (UE)) is expected to reduce the segmentation of Radio Link Control (RLC) Service Data Units (SDUs) while also minimizing padding. Signaling or provisioning of a constraint value such as a maximum padding amount or minimum segmentation size is employed in a determinative way in the UE to balance these objectives. A receiving entity (e.g., evolved base node (eNB)) benefits from being able to signal these parameters, whose application to RLC instances can discriminate between data and signaling radio bearers. Compliance can also be voluntary, such as the network entity employing at least a portion of the same approach on the downlink. | 2009-10-08 |
20090252183 | An Optical Device for Addressing a Slave Cavity with a Wide-Band Laser Source - The invention concerns an optical device comprising an optical source for emitting a light beam in a plurality of emitting wavelengths and at least one laser, each of said at least one laser including a holographic medium (MH), means for injecting (FO, MCS, MUX, CO, IO, AV) said light beam derived from said optical source into said at least one laser, said holographic medium (MH) being adapted to generate a laser in at least one oscillation mode, said at least one oscillation mode being determined by at least one excitation wavelength among the plurality of emitting wavelengths. The invention is characterized in that said optical source comprises a light source emitting simultaneously in said plurality of emitting wavelengths. | 2009-10-08 |
20090252184 | LASER OSCILLATOR AND LASER PROCESSING APPARATUS - A laser oscillator of a laser processing apparatus includes a pair of terminating mirrors, between which a straight light path lies, and also includes a ¼ wavelength plate, an active medium, a higher harmonic wave separating/outputting mirror, a condensing lens, and a nonlinear optical crystal (wavelength converting crystal) that are lined up at given intervals on the light path between the terminating mirrors. The focus of the optical lens is determined to be near a reflection surface of the first terminating mirror, so that the optical lens is disposed to be separated from the reflection surface of the first terminating mirror by a distant approximately equal to a focal distance across the nonlinear optical crystal on the light path of an optical resonator. | 2009-10-08 |
20090252185 | Laser light source device, illumination device, image display device, and monitor device - A laser light source device includes: a light source; an external resonator; a wavelength conversion element converting the wavelength of part of incident light having the first wavelength into the second wavelength which is different from the first wavelength; and an optical-path conversion element causing the light that has been converted into light of the second wavelength in the process of traveling to the light source due to reflection from the external resonator to be separated into a second optical-path different from the first optical-path, and emitting a second laser light of the second wavelength. In the laser light source device, and the height of the wavelength conversion element is greater than a distance between an optical-axis of the first laser light on an end face of the wavelength conversion element which is close to the external resonator and an optical-axis of the second laser light. | 2009-10-08 |
20090252186 | COHERENT LIGHT DISPLAY SYSTEM - A display system includes a coherent light source that can emit a coherent light beam, an optical component that can direct the coherent light beam to a spatial light modulator, a transport mechanism that can move the optical component to produce a movement in the coherent light beam, and a spatial light modulator having a two-dimensional array of mirrors each configured to selectively reflect the coherent light beam either toward a screen surface or away from the screen surface to form a display pixel on the screen surface. A display image is formed on the display screen by display pixels produced by the mirrors that reflect the coherent light beam toward the screen surface. | 2009-10-08 |
20090252187 | Minimizing Power Variations In Laser Sources - The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a projected laser image is generated utilizing an output beam of the semiconductor laser. A gain current control signal is generated by a laser feedback loop to control the gain section of the semiconductor laser. Wavelength fluctuations of the semiconductor laser are narrowed by incorporating a wavelength recovery operation in a drive current of the semiconductor laser and by initiating the wavelength recovery operations as a function of the gain current control signal or an optical intensity error signal. Additional embodiments are disclosed and claimed. | 2009-10-08 |
20090252188 | Misalignment Prevention in an External Cavity Laser Having Temperature Stabilisation of the Resonator and the Gain Medium - The present invention relates to an external-cavity laser module comprising a thermoelectric cooler (TEC) including an upper carrier plate having an upper surface, said TEC being configured to stabilise the temperature of the upper surface at a substantially constant temperature. The laser module further comprises a laser assembly mounted on an optical bench, which is in thermal coupling with said upper surface, said laser assembly comprising a gain medium for emitting an optical beam into the external cavity and an end mirror. | 2009-10-08 |
20090252189 | SEMICONDUCTOR LASER APPARATUS AND OPTICAL APPARATUS - A semiconductor laser apparatus comprises a first semiconductor laser device that emits a blue-violet laser beam, a second semiconductor laser device that emits a red laser beam, and a conductive package body. The first semiconductor laser device has a p-side pad electrode and an n-side electrode. The p-side pad electrode and n-side electrode of the first semiconductor laser device are electrically isolated from the package body. The p-side pad electrode of the first semiconductor laser device is connected with a drive circuit that generates a positive potential, while the n-side electrode thereof is connected with a dc power supply that generates a negative potential. | 2009-10-08 |
20090252190 | SEMICONDUCTOR OPTICAL DEVICE AND METHOD OF FABRICATING THE SAME - In a method of fabricating a semiconductor optical device, a semiconductor region is formed by growing an InP lower film, a active region, an InP upper film and a capping film on a substrate sequentially. Material of the capping film is different from that of InP. Next, a mask is formed on the capping film, and the semiconductor region is etched using the mask to form a semiconductor stripe mesa, which includes an InP lower cladding layer, a active layer, an InP upper cladding layer and a capping layer. The active layer comprises aluminum-based III-V compound. A width of the top surface of the capping layer is greater than that of a width of the bottom surface of the capping layer. A width of the top surface of the InP upper cladding layer is smaller than that of the bottom surface of the InP upper cladding layer. The minimum width of the semiconductor mesa is in the InP upper cladding layer. After forming the semiconductor stripe mesa, thermal process of the semiconductor mesa is carried out in an atmosphere to form a mass transport semiconductor on a side of the InP upper cladding layer, and the atmosphere contains V-group material. | 2009-10-08 |
20090252191 | Semiconductor laser device - A semiconductor laser device is made of a group III nitride semiconductor having a major growth surface defined by a nonpolar plane or a semipolar plane. The semiconductor laser device includes a cavity having an active layer containing In and distributed Bragg reflectors coating both cavity end faces of the cavity respectively. In each of the distributed Bragg reflectors, a central wavelength λ | 2009-10-08 |
20090252192 | REDUCED FEEDBACK OPTICAL TRANSMITTER - A device including a laser with reduced feedback. | 2009-10-08 |
20090252193 | Device and Method for Calibrating a Fiber-Optic Temperature Measuring System - A device for calibrating a fiber-optic temperature measuring system has a broadband light source, a coupling-in device, which can couple light generated by the light source for calibration into an optical fiber of the temperature measuring system, a coupling-out device, which can couple components of the light source-generated light that are backscattered in the optical fiber out of the optical fiber. An evaluation device performs a calibration of the temperature measuring system on the basis of the backscattered components of the light. | 2009-10-08 |
20090252194 | METHOD FOR PASSIVE DETERMINATION OF THE OPERATING TEMPERATURE IN A THERMALLY HIGHLY LOADED DEVICE, AND APPARATUS FOR CARRYING OUT THE METHOD - A method is provided for determination of an operating temperature in a thermally highly loaded device. Multiple individual passive measurement elements, having a measurable physical parameter depending on a constant temperature set during heat treatment, are provided. The parameter is set differently for each of the different measurement elements which are combined to form an array. In a first measurement, values of the physical parameter for the array are determined before the array is subjected to the operating temperature. The array is subjected to the operating temperature in the device and in a second measurement, values are determined for all the measurement elements in the array. First and second measurement values of the physical parameter for each of the measurement elements are compared and the temperature of the heat treatment of that measurement element whose value of the physical parameter has changed the least is taken as the measured temperature. | 2009-10-08 |
20090252195 | THERMOMETER PROVIDED WITH PROTECTIVE CASE - A remote or contact measurement thermometer, in particular an infrared thermometer, includes an enclosure presenting a measurement portion by which a patient's body temperature is measured, and a display portion through which the temperature can be read. The enclosure is rigid with a case movable relative thereto about an axis of rotation passing through the enclosure, the case being able to assume two working positions relative to the enclosure ( | 2009-10-08 |
20090252196 | Passive Microwave Fire and Intrusion Detection System Including Black Body and Spectral Emission at the Hydrogen, Hydroxyl and Hydrogen Chloride Lines - A passive microwave receiver array, operating in the one meter to sub-millimeter wavelengths range and including an internationally protected range of frequencies of varying bandwidth, may be used for fire and intrusion detection. One or more receiver arrays can be used to provide a plurality of frequency ranges that can be detected. In an interior installation, one or more receiver arrays can be placed inside a wall made of non-metallic substance and capable of passively receiving frequencies at less than 3 GHz. In other embodiments, the receiver and array can be in the form of a hand-held or wearable device. This method and apparatus achieves high performance by exploiting conventional low noise amplification block conversion circuits and provides the detection of thermal signals through clear, smoky, misty, or environmentally untenable conditions as well as the detection of fire and intrusion events via black box or spectral line emission at hydrogen, hydroxyl radical or HCl spectral line emission where an HCl spectral line detector may be mounted on a wall or pole and have line-of-sight view of an intruder or fire. | 2009-10-08 |
20090252197 | CULINARY ARTICLE THAT ALLOWS THE DETECTION OF ITS TEMPERATURE VIA A COOKING PLATE - The invention relates to a culinary article ( | 2009-10-08 |
20090252198 | Temperature Sensor Adapted in Charge and Discharge Control Circuit of Secondary Battery - A temperature sensor adapted in a charge and discharge control circuit of a secondary battery, cooperates with a micro-controller of the charge and discharge control circuit. The temperature sensor is a non-polar temperature sensor manufactured by the semiconductor manufacturing technology. The temperature sensor includes a first signal pin, a second signal pin, a first thermal diode, and a second thermal diode paired with the first thermal diode. The positive electrode of the first thermal diode and the negative electrode of the second thermal diode, both connect to the first signal pin. The negative electrode of the first thermal diode and the positive electrode of the second thermal diode, both connect to the second signal pin. The temperature sensor is proofread easily, has a low manufacturing cost, consumes less power and has an excellent anti-interfere capability, etc. | 2009-10-08 |
20090252199 | TEMPERATURE MEASUREMENT DEVICE - A temperature measurement device includes a first member forming a first claw at an end thereof and a second member forming a second claw at an end thereof. The second claw faces the first claw, and can move towards and away from the first claw. A spring is provided between the first member and the second member for generating force to move the second claw towards the first claw. A pair of thermal coupling wires is fixed on one of the first and second claws facing the other of the first and second claws. Thus an object needed to be measured can be arranged between the first and second claws and snugly engage the thermal coupling wires by the elastic force of the deformed spring. | 2009-10-08 |
20090252200 | ELECTRONIC DATA COMMUNICATION SYSTEMS - A method of transmitting data across an electronic data communication system comprising a plurality of terminals that can send and receive data in the form of electromagnetic waves to and from at least one of the terminals, which method comprises the steps of: (a) identifying at least one control terminal, at least one target terminal and at least two relaying terminals from the plurality of terminals; and (b) using the control terminal to instruct the at least two relaying terminals to receive and relay data intended for the at least one target terminal, so that the at least one target terminal can receive data directly from at least one terminal and from the at least two relaying terminals, thereby increasing capacity of the system. | 2009-10-08 |
20090252201 | PILOT INTERFERENCE CANCELLATION - Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory. | 2009-10-08 |
20090252202 | METHOD AND APPARATUS FOR ENHANCED DECODING IN MULTI-BAND ULTRA-WIDEBAND COMMUNICATIONS - A data transmission and reception method includes transmitting a plurality of position data bits and a amplitude bits with each of the pulses. The method also includes decoding the position bits and the amplitude bits. An ultra-wideband (UWB) system is also described. | 2009-10-08 |
20090252203 | WIRELESS COMMUNICATIONS NETWORK COMPRISING MULTI-HOP RELAY STATIONS - A method is provided for conveying wireless communications in a radio network using OFDMA or multi-carrier technologies. The wireless network comprises a first relay station and a subscriber station that is operative to communicate with that first relay station. The first relay station is operative to simultaneously transmit to or receive communications from at least two recipients along a shared frequency channel. The two recipients are wireless network entities selected from among: the base station and a subscriber station; or another relay station and a subscriber station; or the base station and another relay station. According to an embodiment of the invention the wireless communications network further comprises a second relay station, which is operative to simultaneously transmit to or receive communications from at least two recipients along a shared frequency channel. The two recipients are wireless network entities selected from among: the first relay station and a subscriber stations, or a third relay station and a subscriber station, or the first relay station and a third relay station, wherein a third relay station is a relay station that does not exchange communications directly with either the base station nor the first relay station. | 2009-10-08 |
20090252204 | Receiver system for receiving analog and digital signals - A receiver system and method thereof are provided, wherein the receiver system includes a plurality of antenna elements, a receiver device, and a switching system. The antenna elements are configured to receive a signal including first and second antenna elements. The receiver device is in communication with the first and second antenna elements. The switching system switches between the antenna elements using a first switching device, to electrically connect the receiver device when a digital signal is available, and the digital signal received by the first antenna element has a greater signal quality than the digital signal received by other antenna elements. The switching system also switches among the antenna elements to electrically connect the receiver device and the first antenna element to receive the analog signal using a second switching device when the digital signal is unavailable. | 2009-10-08 |
20090252205 | ANTENNA ARRAY SYSTEM - Antenna system connectable to a base station, the antenna system comprising a digital radio unit connectable to at least one antenna element, wherein the digital radio unit comprises: at least one micro radio for receiving/sending digital radio signals having a digital down-converter/a digital up-converter and a digital signal converter. The at least one micro radio converts the digital radio signals to analogue RF (radio frequency) signals and vice versa. The at least one micro radio has at least one hub for processing digital radio signals and control signals and for routing said digital radio signals and control signals via at least one serial link and at least one interface. The at least one serial link is provided between the at least one hub and the at least one micro radio. | 2009-10-08 |
20090252206 | DIGITAL TRANSCEIVER - Digital Transceiver (DTRX) usable in a radio communications systems for transmitting and receiving digital base-band signals, wherein the DTRX ( | 2009-10-08 |
20090252207 | METHODS AND APPARATUS TO TEST A CENTRAL OFFICE DIGITAL SUBSCRIBER LINE MODEM - Methods and apparatus to test a central office (CO) digital subscriber line (DSL) modem are disclosed. An example line termination module for a DSL access multiplexer (DSLAM) comprises a printed circuit board, a plurality of DSL terminal unit-central (DTU-C) modems implemented on the printed circuit board, a DSL terminal unit-remote (DTU-R) modem implemented on the printed circuit board to test the DTU-C modems, and a switch implemented on the printed circuit board to selectively couple the DTU-R modem to a tested one of the DTU-C modems or to a subscriber line. | 2009-10-08 |
20090252208 | Multi-Unit Power Line Communications System and Method - A power line communications system and method for multi-dwelling unit structures that provides broadband communications for internet access, voice over IP (VoIP), streaming video, audio, and other high speed applications and services is provided. One example embodiment includes a first communication device comprising an upstream port and a downstream port. The embodiment also includes a plurality of second communication devices with each second communication device configured to provide communications to user devices located on a different floors. The second communication devices may each include a low voltage power line port configured to communicate with a plurality of user devices via a low voltage power line and a second port for communicating with the first communication device. The first and second devices may also include router functionality. | 2009-10-08 |
20090252209 | Power Line Communication Networks and Methods employing Multiple Widebands - Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or from a communication node at two different frequencies simultaneously. These signals may be exchanged with different nodes and/or include independent data. In some embodiments, some of the wideband frequency ranges are above 30 MHz. | 2009-10-08 |
20090252210 | CIRCUIT ARRANGEMENT, APPARATUS AND PROCESS FOR THE SERIAL SENDING OF DATA VIA A CONNECTION CONTACT - The invention relates to an integrated circuit arrangement with connection contacts for the serial exchange of data and/or signals with external components and apparatuses and with a control apparatus and/or a serial interface for the clocked receiving of data by means of a signal voltage on such a connection contact, which voltage is modulated between at least one low, one middle and one high voltage state. The control apparatus and/or the interface are designed in such a manner that data is sent in a sending mode via the connection contact in that the switching apparatus, after having received a slope changing in particular from the middle voltage state into in particular the higher or the lower voltage state, pulls the voltage state into the in particular opposite lower or higher voltage state. Furthermore, the invention relates to an apparatus and a process for operating such a circuit arrangement. | 2009-10-08 |
20090252211 | METHOD AND DEVICE FOR ESTIMATING SPEED OF WIRELESS TERMINAL - A speed estimation device applicable to an orthogonal frequency division multiplex (OFDM) system is provided. The speed estimation device receives a plurality of channel response information signals from an OFDM symbol and obtains a speed estimation result according to a sampling interval, the speed estimation device. The speed estimation device comprises a correlator, a statistical module, and a comparator. The correlator performs a correlation operation on the plurality of channel response information signals corresponding to sub-carriers with a time domain interval being the sampling interval to obtain a plurality of correlation result information signals. The statistical module connected to the correlator performs a statistical operation on the plurality of correlation result information signals to obtain a statistical correlation result information signal. The comparator connected to the statistical module compares the statistical correlation result information signal with a first threshold according to the first threshold to obtain the speed estimation result. | 2009-10-08 |
20090252212 | METHOD AND APPARATUS FOR EQUALIZING A HIGH SPEED SERIAL DATA LINK - A method and apparatus for equalizing a reflection in a reflective high speed serial link. The method involves obtaining an amplitude and delay time of a compensating pulse that is transmitted in response to a pulse transmitted on the serial link. The apparatus comprises a programmable delay element and a driver stage configured to transmit a delayed and amplitude adjusted version of a pulse transmitted on the serial link. A method for equalizing a plurality of reflections in a reflective high speed serial link. The method involves obtaining an amplitude and delay time of a first compensating pulse and an amplitude and delay time of a second compensating pulse. The method further involves transmitting the first compensating and second compensating pulses in response to a pulse transmitted on the serial link. | 2009-10-08 |
20090252213 | Selectable-Tap Equalizer - A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval. | 2009-10-08 |
20090252214 | RECEIVER - A receiver in which computation is simplified can be obtained by using a common factor for filter coefficients of FIR filters corresponding to a plurality of transmitting antennas and by using only the middle column of an inverse matrix of a gain matrix when the common factor is computed. | 2009-10-08 |
20090252215 | SAMPLED CURRENT-INTEGRATING DECISION FEEDBACK EQUALIZER AND METHOD - A decision feedback equalizer (DFE) and method including a branch coupled to an input and including a sample-and-hold element configured to receive and sample a received input signal from the input and a current-integrating summer. The current-integrating summer is coupled to an output of the sample-and-hold element. The summer is configured to receive and sum currents representing at least one previous decision and an input sample. The at least one previous decision and the input sample are integrated onto a node, wherein the input sample is held constant during an integration period, thereby mitigating the effects of input transitions on an output of the summer. | 2009-10-08 |
20090252216 | MULTIDIMENSIONAL DECISION-DIRECTED TRAINED ADAPTIVE EQUALIZATION - An embodiment of the invention is a technique to equalize received samples. An equalizer to equalize a multidimensional signal transmitted over a communication channel and having a dimensionality of four or higher. The equalizer is adaptively decision directed trained. | 2009-10-08 |
20090252217 | SYSTEM AND METHOD FOR LAYERED DIGITAL VIDEO CODING IN A DIGITAL VIDEO RECORDER - A video server ( | 2009-10-08 |
20090252218 | MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING APPARATUS, MOVING IMAGE CODING METHOD AND MOVING IMAGE DECODING METHOD - In a decoding apparatus in accordance with H.264, when the POC type is determined as “1” and a recovery point SEI is detected, the maximum frame number MaxFrameNum (or its integral multiple) is set as the initial value of the frame number offset (FrameNumOffset). | 2009-10-08 |
20090252219 | METHOD AND SYSTEM FOR THE TRANSMISSION OF DIGITAL VIDEO OVER A WIRELESS NETWORK - An apparatus, system and method are provided for adaptive flow control of layered streaming video over wireless local area networks (WLANs). In one aspect prioritised and adaptive transmission mechanisms are provided based on buffer fullness and discarding visually less important packets so that future visually more important packets can reach the decoder in time. In another aspect, aggregated control is provided for all video applications as well as separate control for each video application. | 2009-10-08 |
20090252220 | METHOD AND APPARATUS FOR SELECTIVE INTER-LAYER PREDICTION ON MACROBLOCK BASIS - Provided are an enhanced inter-layer reference picture designating method and apparatus and an enhanced inter-layer reference picture recovering method and apparatus capable of increasing coding efficiency by allowing different blocks in an upper spatial layer picture of a current to-be-decoded or to-be-encoded picture to refer to blocks in different lower spatial layer pictures. | 2009-10-08 |
20090252221 | METHOD AND AN APPARATUS FOR ENCODING OR DECODING A VIDEO SIGNAL - A method of processing a video signal is disclosed. The present invention includes receiving prediction information of a macroblock and filer information, predicting a current picture using the prediction information of the macroblock, and applying a filter using the predicted current picture and the filter information. | 2009-10-08 |
20090252222 | 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. | 2009-10-08 |
20090252223 | 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. | 2009-10-08 |
20090252224 | 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. | 2009-10-08 |
20090252225 | 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. | 2009-10-08 |
20090252226 | 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. | 2009-10-08 |
20090252227 | VIDEO REFRESH ADAPTATION ALGORITHMS RESPONSIVE TO ERROR FEEDBACK - In general, this disclosure relates to techniques for adaptively determining a rate for intra-coding segments (e.g., macro-blocks) of video data within a sequence of video units (e.g., frames) in response to the receipt of error feedback that is provided by a video decoder. One example method includes receiving feedback from a video decoder that indicates an error associated with coded video data, and, upon receipt of the feedback, determining a rate for intra-coding a specified number of segments of video data for each video unit within a sequence of video units, wherein an intra-coding of segments of video data within one video unit is independent of a coding of segments of video data within other video units within the sequence. | 2009-10-08 |
20090252228 | Trick Play Using Temporal Layering - The present invention provides a method and apparatus for encoding video content into a novel temporal layered coding structure. In one embodiment of the present invention, a plurality of sub-sequence layers are defined in a layer hierarchy in accordance with the present invention. A plurality of images within a sub-sequence of a group of images are selectively assigned to a respective one of the sub-sequence layers. A grouping of images contained in any sequential combination of sub-sequence layers that includes a hierarchically lowest of the sub-sequence layers results in a group of images that temporally are substantially evenly spaced. A related method and apparatus for decoding the temporally layered video content are also disclosed. | 2009-10-08 |
20090252229 | IMAGE ENCODING AND DECODING - An improved MPEG adaptive reference fine granularity scalability encoder and decoder is described. The parameters α and β used to weight difference data during the generation of a prediction error signal in an enhancement layer are modified in dependence upon the magnitude of the values in the difference data. | 2009-10-08 |
20090252230 | Motion estimation device and video encoding device including the same - In a motion estimation device and a video encoding device including the same, a motion estimation device provides a motion vector by performing a motion estimation algorithm, and includes a motion estimation unit including a plurality of processing elements that perform a calculating operation on pixel data of a block of a current frame and reference data in a search area of a reference frame and that output a plurality of operation results on a plurality of candidate blocks in the search area, in parallel; and a comparison and selection unit that compares the operation results provided from the motion estimation unit to each other, and that generates and outputs a motion vector corresponding to the block of the current frame. | 2009-10-08 |
20090252231 | ENCODING SYSTEM AND METHOD, DECODING SYSTEM AND METHOD, MULTIPLEXING APPARATUS AND METHOD, AND DISPLAY SYSTEM AND METHOD - The present invention relates to an encoding system for encoding input video data and a multiplexing system for multiplexing a plurality of encoded streams. More particularly, it proposes a system and method that involve describing, in encoded streams, information on the picture order of input video data, and using the picture order information when generating packetized elementary stream (PES) packets, to prevent delays associated with the PES packet generation. | 2009-10-08 |
20090252232 | IMAGE ENCODING APPARATUS AND CONTROL METHOD THEREOF - This invention enables to generate encoded data without noticeable image quality degradation when reproducing an image at a lower resolution not to mention the original resolution. An image a digital camera can capture takes three sizes L, M, and S. When the size L is designated, stream conversion information SC is set to “2”. When the size M is designated, the stream conversion information SC is set to “1”. When the size S is designated, the stream conversion information SC is set to “0”. When encoding image data in compression processing, block overlap processing of suppressing discontinuity of data at the boundary between adjacent blocks is executed as many times as the count set in the stream conversion information. | 2009-10-08 |