35th week of 2010 patent applcation highlights part 25 |
Patent application number | Title | Published |
20100220698 | WIRELESS LAN COMMUNICATION SYSTEM - A wireless LAN terminal (AP) transmits a data frame to a counter wireless LAN terminal (STA-j), and receives an ACK frame from STA-j. AP measures a response time from the transmission of the data frame to reception of the ACK frame, and measures a transmission interval time from the previous transmission of the data frame to STA-j to the current transmission. AP includes a memory to store a predetermined set transmission interval time and a set response time for said terminal station. AP re-transmits the data frame when the transmission interval time does not exceed the set transmission interval time and the response time exceeds the set response time, and stores the response time in said memory as the set response time, when the transmission interval time exceeds the set transmission interval time. | 2010-09-02 |
20100220699 | Medium reservation protocol for directional wireless networks - Two wireless communications devices in a wireless network may reserve a period of time for directional data communications between themselves during a Contention Access Period. The technique may include transmitting Clear-to-Send messages to each other, and to any other devices with which either has established a directional link, to prevent interfering transmissions from these other devices. Other devices that have not established a directional link with either of these two may overhear the CTS messages and also refrain from transmitting interfering signals during the reserved time period. | 2010-09-02 |
20100220700 | SYSTEM AND METHOD FOR PROVISIONING TELECOMMUNICATIONS SERVICES BETWEEN AN ACCESS POINT AND A TELECOMMUNICATIONS NETWORK AND PROVIDING A MISSING INFORMATION NOTIFICATION - A method and system for selectively provisioning connections between an access point, which supports telecommunications services over an IP network, and a carrier network includes a network connection and a telephone connector suitable for connecting to a landline telephone, a cordless telephone, or a mobile device. The access point sends a provisioning request, which includes identifying information such as a subscriber identifier and a MAC address, to a network controller. The network controller attempts to find a geographic, street, or other address associated with the connection to be provisioned. If an address is not found, the network controller rejects the connection and sends a missing information notification to the access point. After receiving the missing information notification, the access point controls a user indicator to provide error information. | 2010-09-02 |
20100220701 | Client/Bridge and Method and System for Using Same - The transmission of data is accomplished across a network having wireless and wired interfaces. Data is transferred through a wireless interface from an Access Point to a Client/Bridge and then to one of a Intelligent Electrical Device (IED) connected to the Client/Bridge through a wired connection. Data is transferred from the Access Point to the Client/Bridge through a 4 address mode wireless interface having originator, transmitter, receiver and destination address fields. The originator address uniquely identifies an IED in the overall network, the transmitter address identifies the AP transmitting the data, the receiver address identifies the Client/Bridge receiving the data through the wireless interface while the destination address refers to one of the IEDs connected to the Client/Bridge through the wired interface. Communication can also be performed in reverse from one of the IEDs connected to the Client/Bridge through the wired interface to an IED in the overall network. The Client/Bridge determines context cache information representing the media access control numbers of each of the IEDs connected to the Client/Bridge through the wired interface and transfers this context cache information to the AP. In the event of a failure of the Client/Bridge, the context cache information stored at the AP can be transferred to the Client/Bridge using the wireless interface to facilitate recovery of the Client/Bridge. | 2010-09-02 |
20100220702 | LOW POWER CONTROL FOR WIRELESS LAN COMMUNICATION - A wireless networking device includes a transceiver that transmits and receives communications over a wireless local area network (WLAN), and a processor cooperatively operable with the transceiver. The processor transmits over the transceiver one WLAN frame of a file transfer to a receiving networking device and then transitioning from transmit power level down to a state of receive power level while waiting for an “ACK” signal to the transmitting. The processor also receives over the transceiver the “ACK” signal from the receiving networking device, and the “ACK” signal triggers going into a doze state of a low power level for a predetermined period of time. The predetermined period of time expires and triggers transitioning the processor to a state of receive power level for an inter-frame space while waiting to transmit a next WLAN frame. The low power receive power level is lower than the receive power level. | 2010-09-02 |
20100220703 | METHOD AND SYSTEM FOR CONTROLLING CALL ADMISSION IN IMS - A method and a system for controlling call admission for parallel ringing processes to a realm in an IMS is disclosed. The method comprises receiving a call control message to a called party, determining whether the called party has parallel ringing enabled, if positive, generating a plurality of parallel call control messages, associating to each parallel call control message a parallel ringing identifier indicating that the corresponding call control message is a parallel call control message, receiving a plurality of call control messages directed towards the realm, performing call admission control for this realm by verifying whether a parallel ringing identifier is associated to each call control message directed towards this realm so as to determine if the call control message is a parallel call control message. | 2010-09-02 |
20100220704 | Extended Call Handling Functionality Using Multi-Network Simulcasting - A method and apparatus supporting the handling of calls using simulcasting of multimedia information via a broadband access gateway are disclosed. A broadband access gateway supporting both a personal area network and a broadband network may receive multimedia information simultaneously exchanged by an associated access device via a wide area network. The broadband access gateway may store the received multimedia information locally, within the broadband access gateway, or may communicate the multimedia information to storage accessible from the broadband access gateway. The broadband access gateway may cause a user of the access device to be notified of the availability of multimedia information for a recorded call, and may communicate the multimedia information to the access device for playback. A user may be notified if storage and bandwidth for the recording of a call is not available. | 2010-09-02 |
20100220705 | METHOD OF DETERMINING TRANSMISSION RATE OF CONTROL RESPONSE FRAME FOR ACKNOWLEDGING DATA RECEIPT IN WIRELESS LAN - A method is provided for determining a transmission rate of a control response frame for acknowledging data receipt in a wireless local area network. The method includes obtaining transmission parameters of a transmitting station from a data transmission frame received from the transmitting station, searching a receiving station for transmission parameters which correspond to the transmission parameters of the transmitting station, determining the transmission rate of the control response frame according to transmission parameters of the receiving station if the transmission parameters corresponding to the transmission parameters of the transmitting station are found in the receiving station, and determining a maximum rate among a set of basic transmission rates to be the transmission rate of the control response frame if the transmission parameters corresponding to the transmission parameters of the transmitting station are not found in the receiving station. | 2010-09-02 |
20100220706 | Apparatus, Module, And Method For Implementing Communications Functions - A system acquisition module and corresponding method for facilitating PN code searching which has a PN sequence generator configurable to generate a plurality of PN sequences. The module and method also includes computational units configurable to correlate each received signal sample of a plurality of received signal samples with a corresponding PN sequence of the plurality of PN sequences, and further configurable to provide other hardware resources. A number of computational units from the plurality of computational units are selectively configured to correlate the received signal samples with the PN sequences—the number depending upon availability of the plurality of computational units from providing the other hardware resources. In another embodiment, a communication device having a system acquisition function is provided which includes the system acquisition module and a receiver configured to receive signals, where a plurality of configurable computational units are selectively configurable to implement the PN sequence generator. | 2010-09-02 |
20100220707 | Method for Detecting Hidden Nodes in Cognitive Radio Networks - The invention and method provides a concise model for signaling over control channel of cognitive radio. The model is analyzed and simulated for optimum parameters of wireless network. The optimized network parameters facilitate improvement of channel usage for cognitive wireless network leading to bandwidth efficiency. | 2010-09-02 |
20100220708 | HIERARCHICAL CODING WITH MULTIPLE ANTENNAS IN A WIRELESS COMMUNICATION SYSTEM - Techniques are provided for performing hierarchical coding in a multi-antenna communication system (e.g., a SIMO, MISO, or MIMO system). At a transmitter, a base stream and an enhancement stream are coded and modulated separately to obtain first and second data symbol streams, respectively. The first data symbol stream is processed in accordance with a first spatial processing scheme (e.g., a transmit diversity or a spatial multiplexing scheme) to obtain a first set of symbol substreams. The second data symbol stream is processed in accordance with a second spatial processing scheme (e.g., transmit diversity or spatial multiplexing) to obtain a second set of symbol substreams. The first set of symbol substreams is combined (e.g., using time division multiplexing or superposition) with the second set of symbol substreams to obtain multiple transmit symbol streams for transmission from multiple transmit antennas. A receiver performs complementary processing to recover the base stream and enhancement stream. | 2010-09-02 |
20100220709 | Sequence Number Update - The invention relates to a method and device in a communications network when a User Equipment, UE, needs to update a next expected Transmission Sequence Number, TSN, continuously in order to avoid discarding successive transmissions. The method comprises: resetting a next expected TSN value in said network and UE to predetermined values after a predetermined inactivity time. | 2010-09-02 |
20100220710 | MULTICARRIER TRANSMITTING APPARATUS - A multicarrier transmitting apparatus capable of providing a fast cell search. A base station apparatus ( | 2010-09-02 |
20100220711 | BASE STATION APPARATUS AND TRANSMISSION CONTROL METHOD - A base station apparatus for communicating with a mobile station includes an out-of-synchronization determining unit configured to determine out-of-synchronization with the mobile station in downlink based on an uplink signal transmitted from the mobile station. | 2010-09-02 |
20100220712 | METHOD FOR IMPROVING SYNCHRONIZATION PRECISION OF DATA TRANSMISSION AND SYSTEM THEREOF - A method for improving synchro precision of data transmission and system thereof are disclosed. The method includes the following steps: RRU receives a data frame and buffers; frame-parses to a wireless frame impulse signal and a carrier wave data signal of the data frame, setting the maximum time-lapse compensating time; a time-lapse is redeemed to the wireless frame impulse signal after parsing, according to the time of transmission and buffering, and the maximum time-lapse compensating time, and then sends to the communication port of RRU to transmit; a time-lapse is redeemed to the carrier wave data signal after parsing, according to the time of transmission and buffering, the maximum time-lapse compensating time, and transmission time of processing data, the carrier wave data is processed, and then is sent to the communication port of RRU to transmit; the wireless frame impulse signal and the carrier wave data signal are sent to the communication port of RRU simultaneously. The solution redeems the carry time-lapse for transmission data, so that the redeeming precision can reach multiple seconds, thus improving synchro precision of the data in an effective manner. | 2010-09-02 |
20100220713 | RANDOM ACCESS PREAMBLE COLLISION DETECTION | 2010-09-02 |
20100220714 | METHOD AND SYSTEM FOR MANAGING INTERNAL AND EXTERNAL CALLS FOR A GROUP OF COMMUNICATION CLIENTS SHARING A COMMON CUSTOMER IDENTIFIER - A method and network element for implementing a virtual PBX feature for a customer associated with a plurality of endpoints. The method comprises receiving information regarding a call. Based on the information regarding the call, it is determined if the call is an external inbound call or an internal call that identifies a particular one of the endpoints. Responsive to determining that the call is an external inbound call, the call is caused to be routed to the plurality of endpoints associated with the customer, while responsive to determining that the call is an internal call that identifies a particular one of the endpoints, the call is caused to be routed to the particular one of the endpoints. This allows members of a small business or household to share a common external subscriber line, while also allowing the members to reach one another with ease. | 2010-09-02 |
20100220715 | TECHNIQUE FOR PROVIDING TRANSLATION BETWEEN THE PACKET ENVIRONMENT AND THE PSTN ENVIRONMENT - Voice over Internet Protocol (VoIP) calls received in a Hybrid Fiber Coax (HFC) network ( | 2010-09-02 |
20100220716 | Methods for Enhancing SDP Preconditions Signalling for IP Multimedia Sessions - This application describes how Session Description Protocol (SDP) preconditions signaling can be enhanced to support lead role negotiation, precondition capability exchange, premature precondition attempts and concatenated preconditions processing. The application describes the use of send and receive tags in an SDP message for a given media line. In a given message, a success or failure tag may be associated with a send or receive tag in addition to an optional or mandatory condition indicator tag. A lead role indicator may also be associated with a send or receive tag to indicate a desired preference with regard to the sender or receiver taking the lead role. These additions lead to a greater chance of successful session set-up completion, reduce the number of signaling exchanges in general, and enable precondition attempts to be started earlier and to be executed in parallel. | 2010-09-02 |
20100220717 | Method and apparatus for controlling rate of voice service in a mobile communication system supporting voice service via packet network - A method for controlling a rate of a voice service in a mobile communication system supporting the voice service via a packet network. The method includes the steps of receiving a control message at a terminal from a radio network controller (RNC); if the control message indicates control of a downlink rate, determining a downlink rate according to the control message; setting a Change Mode Request (CMR) field of an uplink Voice over Internet Protocol (VoIP) packet according to the downlink rate, and transmitting the uplink VoIP packet from the terminal to the RNC; if the received control message indicates control of an uplink rate, determining an uplink rate according to the control message; and generating an uplink VoIP packet including uplink voice data generated according to the determined uplink rate and frame type (FT) information indicating the determined uplink rate, and transmitting the uplink VoIP packet from the terminal to the RNC. | 2010-09-02 |
20100220718 | Method for detecting calls and corresponding units - A method for detecting calls is disclosed. A call request initiated by a calling terminal device is received by an access unit of a called terminal device of a data packet transmission network. An invite message is sent from the access unit to the called terminal device. A 200-OK message from the called terminal device is received by the access device. In the event of a detection request, a detection message is received by the access unit in order to initiate a detection of the calling terminal device. Additionally, a telephone terminal device includes a controller, which responds with a 200-OK to an invite message, the terminal device sends a detection message to the access unit in order to initiate a detection of a calling terminal device. An access unit which automatically stores an identifier of a calling terminal device is also disclosed. | 2010-09-02 |
20100220719 | Call processing method, system and equipment of same number service - A call processing method, a call processing system and call processing equipment of a same number service are disclosed. The method includes: receiving a call which is initiated by a calling client and carries an initial called number, and sending a message of the called number with a same number service characteristic to first switching equipment in an IP network when the initial called number is a number of the same number service; and receiving a call request initiated by the first switching equipment, starting same number service processing of the initial called number according to the message carried in the call request, and calling a same number terminal corresponding to the initial called number. The embodiment of the invention helps realize the same number service between a SIP intelligent terminal in the IP network and ordinary terminals in other communication networks. | 2010-09-02 |
20100220720 | DIGITAL BROADCASTING SIGNAL TRANSMITTING METHOD AND DEVICE, RECORDING MEDIUM THEREOF, AND RECEIVING DEVICE THEREOF - In a digital broadcasting signal transmission system, a transmission frame includes a frame body and a frame header, and the frame body is divided into a plurality of sub-bands in the frequency domain and is divided into a plurality of symbols in the time domain. The frame header is provided in the former part of the transmission frame and is transmitted with a signal in the time domain. The frame body includes a plurality of services, and the services respectively receive at least one sub-band and at least one symbol. The frame header includes information on the plurality of services, and information on the plurality of services includes information on the sub-band and the symbol to which the services are allocated, information on channel encoding levels of the services, and information on digital modulation levels of the services. | 2010-09-02 |
20100220721 | Method and Apparatus for Packet traversal of A Network Address Translation Device - A characterization method for a network address translation (NAT) device by an internal computer behind the NAT device includes creating a plurality of sockets; binding the plurality of sockets, respectively, to a plurality of ports; transmitting a plurality of STUN requests in user datagram protocol (UDP) packets to a plurality of STUN servers, wherein each STUN request is associated with one of the sockets; determining that the NAT device does support UDP packets if responses are not received from the STUN servers; and determining a set of NAT characteristics of the NAT device if a response is received from each of the STUN servers. | 2010-09-02 |
20100220722 | POINT-TO-MULTIPOINT (P2MP) NETWORK RESOURCE MANAGEMENT - Techniques for managing resources in a point-to-multipoint (P2MP) network are disclosed. In some examples, a root station is adapted to transmit and receive network packets and leaf stations are adapted to transmit and receive the network packets from the root station. An electrical control system can be adapted to reduce an amount of time for the electrical control system to produce a steady state output and to define a maximum boundary for the output. The electrical control system may include feedback to control the root station based, at least in part, on the output of the electrical control system. | 2010-09-02 |
20100220723 | METHOD FOR PROVIDING SCALABLE MULTICAST SERVICE IN A VIRTUAL PRIVATE LAN SERVICE - Multicast capability in a virtual private LAN service (VPLS) is provided in a provider IP/MPLS infrastructure without headend replications by encapsulating a customer data packet to use an established multicast protocol, such as IP multicast. In one example, the customer data packet is encapsulated by an IP header having an IP multicast group address and an Ethernet header. In one implementation, a DNS type mechanism is provided to distribute the IP multicast addresses for VPLS use. Such IP multicast group address can be set aside from an administratively scoped address range. An efficient IP routing algorithm running on the provider's network provides an efficient distribution tree for routing IP-encapsulated customer packet for the VPLS. | 2010-09-02 |
20100220724 | METRO ETHERNET SERVICE ENHANCEMENTS - Numerous enhancements to metro Ethernet network (MEN) services include an enhancement of the overall MEN Quality of Service (QoS) architecture, an enhancement to classification at the provider edge, the use of Ethernet QoS classes, enhancements to policing and marking at ingress provider edge equipment, the provision of traffic management functions at egress provider edge equipment, the use of multiple Ethernet virtual connections (EVCs) and Aggregate EVCs, an enhancement to QoS across an external network-network interface and an enhancement to treatment of Ethernet service frames in a core network. | 2010-09-02 |
20100220725 | High Rate OFDM Communications Using Bit Allocation Tables - Messages transmitted between a receiver and a transmitter are used to maximize a communication data rate. In particular, a multicarrier modulation system uses messages that are sent from the receiver to the transmitter to exchange one or more sets of optimized communication parameters. The transmitter then stores these communication parameters and when transmitting to that particular receiver, the transmitter utilizes the stored parameters in an effort to maximize the data rate to that receiver. Likewise, when the receiver receives packets from that particular transmitter, the receiver can utilize the stored communication parameters for reception. | 2010-09-02 |
20100220726 | SOURCE SPECIFIC MULTICAST LAYER 2 NETWORKING DEVICE AND METHOD - Bridge domain communication methods and devices are presented for efficiently communicating information in a bridge domain based upon group indications and source indications. Packets with a source and destination indication are received. A bridge domain communication process is performed at the bridge level wherein a packet is selected for forwarding based upon a source and group indication. For example, a determination is made if a particular bridge domain corresponds to the group destination indication in the received packet. The source indication in the packet is compared with a tracked source designation indication. Output ports associated with the tracked source designation indication are identified if the tracked source designation indication matches the received source indication. The communication packet is forwarded on identified ports. | 2010-09-02 |
20100220727 | PACKET PROCESSING IN A MULTIPLE PROCESSOR SYSTEM - Packet processing is provided in a multiple processor system including a first processor to processing a packet and to create a tag associated with the packet. The tag includes information about the processing of the packet. A second processor receives the packet subsequent to the first processor and processes the packet using the tag information. | 2010-09-02 |
20100220728 | SYSTEM AND METHOD FOR ACHIEVING ACCELERATED THROUGHPUT - Systems and methods for transporting data between two endpoints over an encoded channel are disclosed. Data transmission units (data units) from the source network are received at an encoding component logically located between the endpoints. These first data units are subdivided into second data units and are transmitted to the destination network over the transport network. Also transmitted are encoded or extra second data units that allow the original first data units to be recreated even if some of the second data units are lost. These encoded second data units may be merely copies of the second data units transmitted, parity second data units, or second data units which have been encoded using erasure correcting coding. At the receiving endpoint, the second data units are received and are used to recreate the original first data units. | 2010-09-02 |
20100220729 | SYSTEM AND METHOD FOR IDENTIFYING UPPER LAYER PROTOCOL MESSAGE BOUNDARIES - Systems and methods that identify the Upper Layer Protocol (ULP) message boundaries are provided. In one example, a method that identifies ULP message boundaries is provided. The method may include one or more of the following steps: attaching a framing header of a frame to a data payload to form a packet, the framing header being placed immediately after the byte stream transport protocol header, the framing header comprising a length field comprising a length of a framing protocol data unit (PDU); and inserting a marker in the packet, the marker pointing backwards to the framing header and being inserted at a preset interval. | 2010-09-02 |
20100220730 | EFFICIENT PRUNING OF VIRTUAL SERVICES IN BRIDGED COMPUTER NETWORKS - In one embodiment, a bridge in a computer network may execute a spanning tree protocol (STP) for network topology and a registration protocol for traffic control of virtual connections (e.g., EVCs) at the bridge. For any gateway ports of the bridge inter-connected with a provider network, the bridge may generate “fake” received registration protocol join messages for a particular virtual connection at the gateway port. The bridge may then either i) propagate the join messages, in response to the gateway port being in a forwarding state according to the STP, on other forwarding ports of the bridge, or ii) in response to the gateway port not being in a forwarding state, block propagation of the join messages to other ports of the bridge. | 2010-09-02 |
20100220731 | METHOD AND SYSTEM FOR SUPPORTING A PLURALITY OF PROVIDERS VIA A SINGLE FEMTOCELL - Aspects of a method and system for supporting a plurality of providers via a single femtocell are provided. In this regard, a femtocell may determine characteristics of one or more VLANs to which it is virtually communicatively coupled via a non-cellular connection and via a cellular connection. Based on the determined characteristics of the one or more VLANs, a cellular transmitter and/or receiver of the femtocell may be controlled to transmit and/or receive packets belonging to the one or more VLANs via the non-cellular connection and/or via the cellular connection. The characteristics of the one or more VLANs may comprise one or more of: cellular standards utilized by the one or more VLANs, cellular frequencies utilized in the one or more VLANs, access technologies utilized by the one or more VLANs, and a duplexing method utilized by the one or more VLANs. | 2010-09-02 |
20100220732 | SERVICE PROCESSING SWITCH - Methods and systems for providing IP services in an integrated fashion are provided. According to one embodiment, a system includes a switch fabric and a line interface/network module, multiple virtual routing engines (VREs) and a virtual services engine (VSE) coupled with the switch fabric. The line interface/network module receives packets, steers ingress packets to a selected VRE and transmits egress packets according to their relative priority. VREs determines if a packet associated with a packet flow requires processing by the VSE by performing flow-based packet classification on the packet and evaluating forwarding state information associated with previously stored flow learning results. The VSE includes a central processing unit configured to perform firewall processing, Uniform Resource Locator (URL) filtering and anti-virus processing. If the packet is determined to require processing by the VSE, then the packet is steered to the VSE for firewall, URL filtering and/or anti-virus processing. | 2010-09-02 |
20100220733 | Communication Structure for Solar Inverters - There is described a communication structure for at least two solar inverters, having a transmission medium by means of which each of the at least two solar inverters is connected to a communication network with a first group of the solar inverters each being connected via an LAN interface to the communication network, and with a further group of the solar inverters being connected to the first group via serial interfaces. Two different network types are therefore provided with the first being suitable for standard LAN technologies with rapid data transmission over short distances, and with the second being suitable for interference-insensitive data transmission over long distances. | 2010-09-02 |
20100220734 | Multifabric Communication Using a Backbone Fabric - A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible. | 2010-09-02 |
20100220735 | STORAGE UNIT FOR COMMUNICATION SYSTEM NODE, METHOD FOR DATA STORAGE AND COMMUNICATION SYSTEM NODE - The present invention relates to a data storage unit for a communication system node, a method for data storage and a communication system node. More particularly it relates to storing buffering data and control data in a unit located outside of a Communication Controller on system or host-controller level, wherein a time-triggered protocol runs on the node. By locating control and buffering related data, including format and behaviour, outside the Communication Controller it becomes far more flexible, extendable, and re-configurable as data buffering related restrictions, e.g. buffer sizes and number of buffers, are moved from Communication Controller level to system level. | 2010-09-02 |
20100220736 | Advertising alternate paths at border gateway protocol route reflectors - In one embodiment, a method includes receiving routing information at an alternate route reflector in a network, identifying at the alternate route reflector, an alternate path different from a primary path selected and advertised at a primary route reflector in the network, and advertising at the alternate route reflector, the alternate path. The primary and alternate paths define paths for a destination and the alternate path is the only path advertised by the alternate route reflector for the destination. | 2010-09-02 |
20100220737 | MULTIPLE SPANNING TREE EXTENSIONS FOR TRUNK PORTS CARRYING MORE THAN 4K VIRTUAL SERVICES - In one embodiment, bridges in a computer network maintain a per-port mapping table for each of its ports, where each mapping table maps, for each virtual connection (of more than 4K) at a respective port, i) frame encapsulation fields that uniquely identify a particular virtual connection at the respective port to ii) a particular multiple spanning tree (MST) instance. The bridges may then compute a checksum of a particular mapping table for a particular port, and share the checksum with a corresponding port interconnected with the particular port (e.g., of another bridge). Upon determining that the mapping tables at the corresponding ports match in response to the checksums matching, frames may then be forwarded between the ports based on the particular mapping table. | 2010-09-02 |
20100220738 | Apparatus and Method for Route Optimization for Proxy Mobile Internet Protocol Version Six Local Routing - An apparatus comprising a first mobile access gateway (MAG) associated with a mobile node (MN) and configured to send a proxy binding update (PBU) to a second MAG associated with a correspondent node (CN). An apparatus comprising at least one processor configured to implement a method comprising promoting transmission of a route optimization start request (ROStartReq) message to a MAG, wherein the ROStartReq message requests route optimization between a MN and a CN, and wherein the ROStartReq message comprises a MN-CN route optimization (RO) option. A system comprising a local mobility agent (LMA), a first MAG coupled to the LMA and in communication with a MN, and a second MAG coupled to the LMA and in communication with a CN, wherein communications between the MN and the CN are routed through the first MAG and the second MAG without being routed through the LMA. | 2010-09-02 |
20100220739 | Carrier Network Connection Device And Carrier Network - A network connection device connecting a pseudo wire of a layer | 2010-09-02 |
20100220740 | METHOD, SYSTEM, AND PROGRAM FOR FORWARDING MESSAGES BETWEEN NODES - Provided are a method, system, and program for forwarding a message from a transmitting node. A first message is received encoded using a first communication protocol from the transmitting node, wherein the first message includes a direct reference to a memory location in one node. A determination is made as to whether the first message is directed to a receiving node using a second communication protocol. A second message is generated that is compatible with the second communication protocol, wherein the second message causes an operation to be performed with respect to the direct reference in the first message. The second message is transmitted to the receiving node. | 2010-09-02 |
20100220741 | HETEROGENEOUS MEDIA PACKET BRIDGING - Methods and systems for bridging Ethernet frames transmitted over heterogeneous media channels are provided. According to one embodiment, multiple Ethernet frames encapsulated within multiple in-bound media transmissions having different media formats are received via a first set of multiple network interfaces of a network-computing device. The multiple in-bound media transmissions are relayed via a switch fabric of the network-computing device to a virtual bridge application running on a processing resource shared by the network interfaces and which acts as a single bridging domain for all Ethernet frames. The virtual bridge application encapsulates the multiple Ethernet frames within multiple out-bound media transmissions by performing media agnostic Ethernet bridging of the multiple Ethernet frames. The multiple Ethernet frames are transmitted by relaying, via the switch fabric, the out-bound media transmissions to a second set of the multiple network interfaces. | 2010-09-02 |
20100220742 | SYSTEM AND METHOD FOR ROUTER QUEUE AND CONGESTION MANAGEMENT - In a multi-QOS level queuing structure, packet payload pointers are stored in multiple queues and packet payloads in a common memory pool. Algorithms control the drop probability of packets entering the queuing structure. Instantaneous drop probabilities are obtained by comparing measured instantaneous queue size with calculated minimum and maximum queue sizes. Non-utilized common memory space is allocated simultaneously to all queues. Time averaged drop probabilities follow a traditional Weighted Random Early Discard mechanism. Algorithms are adapted to a multi-level QOS structure, floating point format, and hardware implementation. Packet flow from a router egress queuing structure into a single egress port tributary is controlled by an arbitration algorithm using a rate metering mechanism. The queuing structure is replicated for each egress tributary in the router system. | 2010-09-02 |
20100220743 | BUFFER MANAGEMENT METHOD AND PACKET COMMUNICATION APPARATUS - A packet communication apparatus includes a frame buffer of a linked list method and holds chain information and buffer size information, for structuring a linked list buffer for each user flow, in two areas consisting of an operation area and an update area. While usually in service, the buffer is structured by using the chain information in the operation area and the buffer size information in the same area such that the frame is read/written in the frame buffer. When the chain information in the update area and the buffer size information in the same area have been changed, a queue size is changed by reflecting the updated chain information and the updater buffer size information into the operation area, when both the read pointer and the write pointer respectively have gone around the buffer, or when there is no frame stored in the buffer. | 2010-09-02 |
20100220744 | INTELLIGENT START COUPLER FOR TIME TRIGGERED COMMUNICATION PROTOCOL AND METHOD FOR COMMUNICATING BETWEEN NODES WITHIN A NETWORK USING A TIME TRIGGER PROTOCOL - This invention relates to a star coupler connected to a plurality of nodes within a network using a time triggered protocol on a time slot basis. The invention further relates to a network including a cluster having at least one node. Further, the invention relates to a method for communication between nodes within a network using a time trigger protocol. To provide a star coupler, which is able to increase the bandwidth and to communicate with low propagation delay for communicating the relevant data it is proposed to provide a star coupler ( | 2010-09-02 |
20100220745 | Aggregated Network Communication Bandwidth Management Information Display System - An aggregated network communication bandwidth management information display system that functions as a high-level information display system interfacing with a plurality of service-specific bandwidth reservation and session management systems so as to provide an integrated “view” of the enterprise network's operation is described. The system includes at least a display a user interface, and interfaces to a plurality of service-specific bandwidth managers. The system can include traffic modeling elements and be used as a component of a Unified Bandwidth Manager. | 2010-09-02 |
20100220746 | METHOD FOR INVERSE MULTIPLEXING - A method for multiplexing digital data, wherein a packet of digital data is simultaneously sent from front to rear and from rear to front. Additionally, a method for multiplexing digital data, wherein a packet of digital data is simultaneously sent from the beginning of the packet towards the end and from the end towards the beginning. Additionally, a method for multiplexing digital data, wherein simultaneously a packet of digital data is sent and the same packet is sent backwards. | 2010-09-02 |
20100220747 | METHOD AND APPARATUS FOR SYNCHRONIZING NODES - During each node's awake period, each node multicasts the relative time or slot of their next awake period (beaconing interval) to all neighboring nodes. This enables each node to intelligently and independently schedule the time slot of its next transmission based on the beaconing intervals of the nodes it has heard from. During each active (awake) interval, a node builds statistics of the future transmission/receive times of its neighbors and uses them to determine its next transmission time. In one proposed implementation, at the end of an active interval, a node picks the time slot with the highest counter for its next transmission. In another proposed implementation, at the end of an active interval, a node picks one of the slots with a weighted probability; the weight of each slot is proportional with the value of the counter associated with the slot | 2010-09-02 |
20100220748 | SLAVE DEVICE, TIME SYNCHRONIZATION METHOD IN SLAVE DEVICE, MASTER DEVICE, AND ELECTRONIC EQUIPMENT SYSTEM - A slave device includes: a clock unit that is configured by a counter so as to output time information; a clock generation unit that generates clocks for counting up the counter; a message receiving unit that receives messages sent from a master device; a message sending unit that sends messages to the master device; a first calculation unit that calculates a first value necessary for correcting the time on the clock unit; a first correction unit that corrects the time on the clock unit based on the first value calculated by the first calculation unit; a second calculation unit that calculates a second value necessary for correcting a frequency of the clocks generated by the clock generation unit; and a second correction unit that corrects the frequency of the clocks generated by the clock generation unit based on the second value calculated by the second calculation unit. | 2010-09-02 |
20100220749 | METHOD AND ARRANGEMENT FOR LOCAL SYCHRONIZATION IN MASTER-SLAVE DISTRIBUTED COMMUNICATION SYSTEMS - A communication system which consists of several modules—operating in parallel on segments of a packet—to increase speed and handling capacity. One module acts as master, the others are slave modules controlled by control signals derived by the master module. It is important that in each module the data segment and the respective control signal of each packet are correctly synchronized, because in large systems the data paths carrying packet segments and the control signal paths may have substantially different delays. The invention provides for measurement of the propagation delay differences and for introducing a controlled delay in each slave module, so that data segments and control signals can be correctly correlated by delaying either the one or the other. Synchronization packets are transmitted besides normal data packets, for obtaining time stamps which are used to determine the delay difference. | 2010-09-02 |
20100220750 | Terahertz Laser Components And Associated Methods - A system generates FIR radiation. An electron source generates an electron beam. A first horn interacts with the electron beam to produce the FIR radiation. A second grating horn receives the electron beam from the first horn and emits it as a collimated free wave or Smith-Purcell radiation. | 2010-09-02 |
20100220751 | All-Normal-Dispersion Femtosecond Fiber Laser - A modelocked fiber laser is designed to have strong pulse-shaping based on spectral filtering of a highly-chirped pulse in the laser cavity. The laser generates femtosecond pulses without a dispersive delay line or anomalous dispersion in the cavity. | 2010-09-02 |
20100220752 | 810 nm Ultra-Short Pulsed Fiber Laser - Methods and systems for generating ultra-short fiber laser pulses are disclosed, including generating a signal laser pulse from a seed fiber laser; using a pulse stretcher comprising an input and an output, wherein the signal laser pulse is coupled into the input of the pulse stretcher; using a Tm:ZBLAN fiber comprising an input and an output, wherein the stretched signal laser pulse from the output of the pulse stretcher is coupled into the input of the Tm:ZBLAN fiber; using a pump laser coupled to either the output or the input of the Tm:ZBLAN fiber to amplify the stretched signal laser pulse; and using a compressor comprising an input and an output, wherein the output of the Tm:ZBLAN fiber is coupled to the input of the compressor and the output of the compressor emits the amplified signal laser pulse. Other embodiments are described and claimed. | 2010-09-02 |
20100220753 | MONOFREQUENCY INTRA-CAVITY FREQUENCY-TRIPLED CONTINUOUS LASER - A diode-pumped intra-cavity frequency-tripled continuous laser device, this device includes: an amplifying medium, a birefringent non-linear medium for frequency doubling, a birefringent non-linear medium for frequency tripling; and a polarizing medium arranged so as to constitute an intra-cavity birefringent filter or Lyot filter, the Lyot filter being adapted to allow monofrequency output emission from the laser device. | 2010-09-02 |
20100220754 | METHOD OF DRIVING LASER DIODE DEVICE AND LASER DIODE EQUIPMENT - A method of driving an ultrashort pulse and ultrahigh power laser diode device having a simple composition and a simple structure is provided. In the method of driving a laser diode device, light is injected from a light injection means into a laser diode device driven by a pulse current having a value 10 or more times as large as a value of a threshold current. | 2010-09-02 |
20100220755 | SPECTRALLY TUNABLER LASER MODULE - The present invention relates to a laser module, comprising a flat substrate basis with a mounting region and with at least one heat conducting region adjoining the mounting region, one heating element arranged in the mounting region and one temperature sensor element arranged in the mounting region. | 2010-09-02 |
20100220756 | LASER APPARATUS AND EXTREME ULTRAVIOLET LIGHT SOURCE APPARATUS - A laser apparatus comprises an amplifier including at least one of a MOPA and a MOPO each of which amplifies a single-longitudinal or multiple-longitudinal mode laser light, an amplifiable agent of the amplifier being a molecular gas, a master oscillator constructed from a semiconductor laser being able to oscillate a single-longitudinal or multiple-longitudinal mode laser light of which wavelength is within one or more amplification lines of the amplifier; and a controller executing a wave shape control adjusting a pulse shape and/or a pulse output timing of a single-longitudinal or multiple-longitudinal mode laser light outputted from the master oscillator. | 2010-09-02 |
20100220757 | SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND PROCESS FOR PRODUCTION THEREOF - One embodiment of the present invention provides a semiconductor light-emitting element having both high light-extraction efficiency and excellent adhesion between a light-extraction surface and a sealing resin, and it also provides a process for production thereof. This element comprises a semiconductor multilayered film and a light-extraction surface. In the multilayered film, plural semiconductor layers and an active layer are stacked. The light-extraction surface is provided on the multilayered film, and plural micro-projections are formed thereon. These micro-projections have flat top faces parallel to the multilayered film, and they can be formed by an etching process. The etching process is performed by use of a dot pattern as a mask, and the dot pattern is formed by phase separation of a block copolymer. | 2010-09-02 |
20100220758 | DIRECT MODULATED MODIFIED VERTICAL CAVITY SURFACE EMITTING LASERS - A laser system having separately electrically operable cavities for emitting modulated narrow linewidth light with first, second and third mirror structures separated by a first active region between the first and the second and by a second active region between the second and the third. The second mirror structure has twenty of more periods of mirror pairs. | 2010-09-02 |
20100220759 | SEMICONDUCTOR LASER AND METHOD OF MANUFACTURING SEMICONDUCTOR LASER - Provided is a semiconductor laser, wherein (λa−λw)>15 (nm) and Lt<25 (μm), where λw is the wavelength of light corresponding to the band gap of the active layer disposed at a position within a distance of 2 μm from one end surface in a resonator direction, λa is the wavelength of light corresponding to the band gap of the active layer disposed at a position that is spaced a distance of equal to or more than ( 3/10)L and <( 7/10)L from the one end surface in a resonator direction, “L” is the resonator length, and “Lt” is the length of a transition region provided between the position of the active layer with a band gap corresponding to a light wavelength of λw+2 (nm) and the position of the active layer with a band gap corresponding to a light wavelength of λa−2 (nm) in the resonator direction. | 2010-09-02 |
20100220760 | NITRIDE SEMICONDUCTOR LASER DEVICE - The nitride semiconductor laser device includes a substrate, a nitride semiconductor layer having a first nitride semiconductor layer, an active layer, and a second nitride semiconductor layer stacked in this order on the substrate, and a ridge provided on a surface of the nitride semiconductor layer. The surface of the nitride semiconductor layer includes a generally flat part and first and second grooves which extend along the ridge in a resonator direction, the first groove being formed continuous to a first side surface of the ridge, the second groove being formed continuous to a second side surface of the ridge which is opposite to the first side surface | 2010-09-02 |
20100220761 | GALLIUM NITRIDE-BASED SEMICONDUCTOR OPTICAL DEVICE, METHOD OF FABRICATING GALLIUM NITRIDE-BASED SEMICONDUCTOR OPTICAL DEVICE, AND EPITAXIAL WAFER - A gallium nitride-based semiconductor optical device is provided that includes an indium-containing gallium nitride-based semiconductor layer that exhibit low piezoelectric effect and high crystal quality. The gallium nitride-based semiconductor optical device | 2010-09-02 |
20100220762 | HIGH POWER SEMICONDUCTOR OPTO-ELECTRONIC DEVICE - Semiconductor laser diodes, particularly broad area single emitter (BASE) laser diodes of high light output power, are commonly used in opto-electronics. Light output power and stability of such laser diodes are of crucial interest and any degradation during normal use is a significant disadvantage. The present invention concerns an improved design of such laser diodes, the improvement in particular significantly minimizing or avoiding degradation of such laser diodes at very high light output powers by controlling the current flow in the laser diode in a defined way. The minimization or avoidance of (front) end section degradation of such laser diodes significantly increases long-term stability compared to prior art designs. This is achieved by controlling the carrier injection into the laser diode in the vicinity of its facets in such a way that abrupt injection current peaks are avoided. To this, a current-blocking isolation layer ( | 2010-09-02 |
20100220763 | SURFACE EMITTING LASER ARRAY - Provided is a surface emitting laser array using a photonic crystal, which allows an active layer to be shared without disconnecting the active layer between the individual surface emitting lasers adjacent to each other, and enables high-density arraying easily. The surface emitting laser array includes: at least two surface emitting lasers formed on a substrate, each having a laminated structure of multiple semiconductor layers including a semiconductor multilayer mirror, an active layer, and a photonic crystal having a refractive index profile in an in-plane direction, the photonic crystal and the semiconductor multilayer mirror in the laminated structure forming a waveguide for guiding light in a resonance mode; and a region without the photonic crystal provided between adjacent surface emitting lasers in the surface emitting laser array, in which the surface emitting lasers have the same semiconductor multilayer mirror and the same active layer. | 2010-09-02 |
20100220764 | Differential scanning calorimeter - The differential scanning calorimeter includes: a heat sink, which stores a measuring sample and a reference material; a heater, which heats the heat sink; a cooling block, which is separated away from the heat sink, and positioned below the heat sink; a thermal resistor, which is connected between the heat sink and the cooling block, and forms a heat flow path therebetween; a cooling head, which is detachably fitted to the cooling block, and is cooled by an external cooling device; and differential heat flow detectors, which output a temperature difference between the measuring sample and the reference material as a heat-flow-difference signal, in which: the cooling block forms a side wall to fit the bore of the cooling head outward from the joint of the thermal resistance body; the top surface of the cooling head is lower than the joint. | 2010-09-02 |
20100220765 | SENSOR AND METHOD FOR DETERMINING TEMPERATURE ALONG AN OPTICAL FIBRE - An optical fibre temperature sensor comprising: an optical pulse generator; an optical fibre into which said optical pulses are fed; an optical receiver to receive said optical pulses reflected by said optical fibre and to convert them into an electrical signal; a processor which receives said electrical signal and determines the temperature along said optical fibre; said optical receiver comprising a first filter and a second filter to filter said optical pulse reflected by said optical fibre, characterised in that said first and said second filters filter two adjacent portions of anti-Stokes optical signals or of Stokes optical signals | 2010-09-02 |
20100220766 | Wireless Temperature Profiling System - A wireless temperature profiling system and the methods of making it are disclosed. The wireless temperature profiling system can include a photovoltaic substrate, a transponder, and a reader. | 2010-09-02 |
20100220767 | HIGH DATA RATE TRANSMISSION IN A MULTI BAND OFDM SYSTEM - Method for transmitting information in a multi-band OFDM system, comprising delivering according to a given communication standard an initial data stream (IDS), splitting ( | 2010-09-02 |
20100220768 | MULTI-ARY ERROR-CORRECTING CODE TRANSMITTING AND RECEIVING APPARATUSE, DATA TRANSMISSION SYSTEM, AND RELEVANT METHOD - The embodiments of the present invention disclose an apparatus for transmitting multi-ary error-correcting codes, an apparatus for receiving multi-ary error-correcting codes, a data transmission system, and relevant methods to simplify operations. The apparatus for transmitting multi-ary error-correcting codes includes: a multi-ary channel encoder, adapted to perform multi-ary coding for source data frames of a user to obtain encoded sequences; a symbol mapper, adapted to perform symbol mapping for the encoded sequences to obtain symbol sequences; and a spreading and interleaving unit, adapted to spread and interleave the symbol sequences. Moreover, a corresponding apparatus for receiving multi-ary error-correcting codes, a data transmission system, and relevant methods are provided. | 2010-09-02 |
20100220769 | CONTENT REPRODUCTION APPARATUS, CONTENT RECEIVING APPARATUS, METHOD OF REPRODUCING CONTENT, PROGRAM, AND CONTENT REPRODUCTION SYSTEM - There is provided a content reproduction apparatus including a reproduction request receiving unit that receives from a first external device conforming to a first communication standard a request to reproduce content data selected by the first external device, a content data obtaining unit that obtains from a second external device conforming to the first communication standard, which stores the content data selected by the first external device, the content data in response to the received request, a content reproduction unit that reproduces the obtained content data, and a data converting unit that converts data which can be transmitted according to the first communication standard into data which can be transmitted according to a second communication standard different than the first communication standard. | 2010-09-02 |
20100220770 | TRANSMITTER APPARATUS - A transmitter apparatus capable of reducing the distortions of vector modulated waves. This apparatus includes variable coefficient filters ( | 2010-09-02 |
20100220771 | IMPULSE NOISE MANAGEMENT - Evaluation of the impact of impulse noise on a communication system can be utilized to determine how the system should be configured to adapt to impulse noise events. Moreover, the system allows for information regarding impulse noise events, such as length of the event, repetition period of the event and timing of the event, to be collected and forwarded to a destination. The adaptation can be performed during one or more of Showtime and initialization, and can be initiated and determined at either one or more of a transmitter and a receiver. | 2010-09-02 |
20100220772 | Wireless Communication System Using Surface Acoustic Wave (SAW) Second Harmonic Techniques - A system is for encoding information on a passive surface acoustic wave (SAW) device. The system includes a requesting unit configured to wirelessly transmit an impulse signal. The impulse signal is a signal that includes only a single pulse. A SAW device has an interdigital transducer (IDT) configured to physically store coded data. The SAW device is configured to receive the impulse signal. In response to receiving the impulse signal, the SAW device excites the IDT to generate a coded signal that includes the stored coded data and frequency components at a fundamental frequency. | 2010-09-02 |
20100220773 | INDICATING AND DETECTING THE START OF SIGNAL TRANSMISSION EMPLOYING FREQUENCY DIVISION MULTIPLEXING - A modem for use with a subsea transmission line comprises a digital signal processor responsive to a succession of segments of a data signal to produce a respective set of orthogonal frequency division multiplexed signals and to transmit those signals as a burst on the transmission line, and to prepend the burst with a start signal comprising a cyclically time-varying signal envelope-modulated with a Gaussian waveform. The modem is also arranged to convert signals received from the transmission line into a succession of digital samples and to process those samples to obtain an indication of the peak of the Gaussian waveform whereby to provide a datum for decoding a received burst of OFDM signals. | 2010-09-02 |
20100220774 | LOW POWER UWB TRANSMITTER AND RECEIVER IN IMPULSE-BASED UWB COMMUNICATION SYSTEM AND METHOD FOR OPERATING THE SAME - Provided are an ultra wideband (UWB) system and a method for operating the same. The UWB system includes a baseband unit for modulating/demodulating an impulse data signal and generating a power management control signal using burst hopping information, and an RF transmitting/receiving unit for transmitting/receiving a wireless signal and alternating between power-on/off states according to the power management control signal generated from the baseband unit. The UWB system can reduce power consumption by applying power source to the RF transmitting/receiving unit only at a time interval in which an impulse signal having a short time period and constituting transmitting/receiving data exists. | 2010-09-02 |
20100220775 | Multicarrier Modulation Messaging for SNR Per Subchannel During Showtime Information - Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct. | 2010-09-02 |
20100220776 | METHODS AND APPARATUS FOR PSEUDO ASYNCHRONOUS TESTING OF RECEIVE PATH IN SERIALIZER/DESERIALIZER DEVICES - Methods and apparatus are provided for pseudo asynchronous testing of receive paths in serializer/deserializer (SerDes) devices. A SerDes device is tested by applying a source of serial data to a receive path of the SerDes device during a test mode. The receive path substantially aligns to incoming data using a bit clock. A phase is adjusted during the test mode of the bit clock relative to the source of serial data to evaluate the SerDes device. The source of serial data may be, for example, a reference clock used by a phase locked loop to generate the bit clock. The phase of the bit clock can be directly controlled during the test mode, for example, by a test phase control signal, such as a plurality of interpolation codes that are applied to an interpolator that alters a phase of the bit clock. | 2010-09-02 |
20100220777 | TEST APPARATUS FOR 64B/66B ENCODING PROCESS - The present invention provides a test apparatus for a | 2010-09-02 |
20100220778 | FREQUENCY CONVERTING SYSTEM - In a frequency converting system, an input signal x(t) is supplied to a signal branching section for dividing a predetermined frequency domain into M bands, extracting signal components of the respective divided bands. The respective signal components and local signals each including a frequency difference corresponding to a predetermined intermediate frequency with respect to a center frequency of each band are input to a frequency converting part. The signals of the respective divided bands are converted into signals of intermediate frequency bands each including the predetermined intermediate frequency as the center frequency, the conversion outputs are sampled by using a common clock signal, whereby the conversion outputs are converted into digital signals. Further, after being subjected to phase correction processing, the digital signals are subjected to frequency conversion and combination processing by a signal regeneration part. | 2010-09-02 |
20100220779 | COMMON BROADCAST RECEIVER AND METHOD FOR PROCESSING A RECEIVED SIGNAL THEREOF - A common broadcast receiver that receives cable broadcast, terrestrial broadcast, and mobile broadcast signals is provided. The common broadcast receiver includes a synchronizer for receiving any one of a cable broadcast signal, a terrestrial broadcast signal, and a mobile broadcast signal including a training signal generated by a Deterministic Trellis Reset (DTR) and inserted in a data region, and synchronizing the received broadcast signal; and a signal detector for detecting any one of the cable broadcast signal, the terrestrial broadcast signal, and the mobile broadcast signal from the synchronized broadcast signal. Hence, the mobile broadcast signal can be received and processed in addition to the cable broadcast signal and the terrestrial broadcast signal. | 2010-09-02 |
20100220780 | FULLY COMPENSATED ADAPTIVE INTERFERENCE CANCELLATION SYSTEM - A system for removing interference comprising a receive decimation filter that accepts a composite received baseband signal and generates filtered sampled data at a decimation rate, a transmit decimation filter that accepts a digitally converted replica of an interfering signal and generates filtered sampled data at a decimation rate, an integer sample delay control (ISDC) that provides multiple sample delay control for the replica and stores an estimated delay value, an adaptive filter that provides fractional sample delay control for the replica of the interfering signal and optimizes cancellation of the interfering signal, a digital phase-locked loop (DPLL) programmed with a known frequency offset of the interfering signal that tracks a phase and frequency of the replica of the interfering signal, an automatic gain control (AGC) that maintains near full scale operation of adaptive filtering and the DPLL, and a slicer, mixer, and delay unit forming an error estimator. | 2010-09-02 |
20100220781 | MOVING PICTURE DECODING APPARATUS - A moving picture decoding apparatus capable of performing time-division decoding processing with the least possible idle time by making the best use of a decoder includes: a buffer memory storing moving picture streams of channels; a video decoder which decodes the moving picture streams of channels read out from the buffer memory; a frame buffer which stores moving picture data of the moving picture streams decoded by the video decoder; a display control unit which reads out the moving picture data from the frame buffer and outputs a moving picture signal corresponding to the moving picture data; and a decoding control unit which causes the video decoder to decode the moving picture streams in a time division manner by switching the moving picture streams which the decoding control unit supplies from the buffer memory to the video decoder. | 2010-09-02 |
20100220782 | VIDEO CODING DEVICE AND VIDEO CODING METHOD - A video coding device ( | 2010-09-02 |
20100220783 | FRAME BUFFER COMPRESSION FOR VIDEO PROCESSING DEVICES - For compressing a video signal, a local multiscale transform is applied to a frame of the video signal to obtain coefficient blocks. The coefficients of each block are distributed into a plurality of coefficient groups, and for at least one of the groups, a common exponent is determined for encoding the coefficients of the group, and respective mantissas are determined for quantizing the coefficients of the group in combination with the common exponent. Coding data including each exponent determined for a coefficient group and the mantissas quantizing the coefficients of the group in combination with this exponent are stored in an external frame buffer. | 2010-09-02 |
20100220784 | Video Encoding Method and Decoding Method, Apparatuses Therefor, Programs Therefor, and Storage Media for Storing the Programs - By using parallax compensation which performs prediction by using parallax between video images, the video images are encoded as a single video image. Reference parallax for a target image to be encoded is set, wherein the reference parallax is estimated using a reference image; area division in an image frame is set; parallax displacement for each divided area is set, wherein the parallax displacement is the difference between the reference parallax and parallax for the parallax compensation; data of the area division is encoded; and data for indicating the parallax displacement is encoded. During decoding, reference parallax for a target image to be decoded is set, wherein it is estimated using a reference image; data for indicating area division, which is included in encoded data, is decoded; and data of parallax displacement, which is included in the encoded data, is decoded for each area indicated by the area division data. | 2010-09-02 |
20100220785 | VIDEO CODING METHOD AND DEVICE, RELATED SCALABLE BITSTREAM AND COMPUTER PROGRAM PRODUCT - An encoder allows generating, starting from a sequence of digital video pictures, a time-scalable encoded bitstream obtained by applying to the pictures, a hierarchical prediction wherein the pictures are organized in Groups Of Pictures (GOPs). The GOPs may include base time layer pictures or Key Pictures for encoding as Inter or Intra, with and without motion-compensated prediction respectively. The GOPs may also include higher time layer pictures adapted to be selectively eliminated to effect time scalability of the encoded scalable bitstream. The encoder may detect scene changes in the sequence of digital video pictures, and, in the presence of a scene change, a first Key Picture after the scene change may be encoded as Intra. | 2010-09-02 |
20100220786 | METHOD AND APPARATUS FOR MULTIPLE REFERENCE PICTURE MOTION ESTIMATION - The claimed invention relates to efficient use of data for multiple reference picture motion estimation. Multiple reference picture motion estimation involves a large amount of data due to the processing of multiple reference pictures. The claimed invention discloses a method | 2010-09-02 |
20100220787 | Video encoding and decoding apparatus, method, and system - A video sequence is encoded by encoding key frames to obtain coded data and non-key frames to obtain error-correcting information. In the encoding process, key frame data are stored in a buffer, first motion information pertaining to the key frames is obtained, and the first motion information is applied to the stored key frame data to generate predicted key frame data. Second motion information pertaining to the non-key frames is also obtained and used to generate predicted non-key frame data. Either the first motion information is obtained from the second motion information, or the second motion information is obtained from the first motion information. The encoder accordingly does not have to obtain motion information from the decoder, and can estimate the amount of error-correcting information to send to the decoder. | 2010-09-02 |
20100220788 | VIDEO CODING METHOD AND VIDEO DECODING METHOD - A video coding method and a video coding device can optimize prediction efficiency and coding efficiency. | 2010-09-02 |
20100220789 | COMBINED SPATIAL AND BIT-DEPTH SCALABILITY - Various implementations are described. Several implementations relate to combined scalability. One method is for encoding a combined spatial and bit-depth scalability. The method includes encoding a source image of a base layer macroblock. The method also includes and encoding a source image of an enhancement layer macroblock by performing an inter-layer prediction. The source image of the base layer and the source image of the enhancement layer differ from each other both in spatial resolution and color bit-depth. | 2010-09-02 |
20100220790 | METHOD AND AN APPARATUS FOR PROCESSING A VIDEO SIGNAL - An apparatus for processing a video signal and method thereof are disclosed. The present invention includes receiving prediction mode information, interpolating information and a residual of a current block, reconstructing an interpolating pixel using the interpolating information and a neighbor block, and reconstructing the current block using the interpolating pixel, the prediction mode information and the residual, wherein the interpolating information is generated based on a location of the current block. According to an apparatus and method for processing a video signal, high reconstruction rate can be obtained by improving the related art method having limited intra prediction modes available for a current block located on a boundary area of a picture in encoding in a manner of reconstructing and using an interpolating pixel based on interpolating information. | 2010-09-02 |
20100220791 | Video coding and decoding method and codex based on motion skip mode - A video coding method based on a motion skip mode (MSM) is provided. The method includes the following steps. A corresponding reference block of a current macro block to be encoded in a view-point reference image is determined, according to a direction of a disparity vector from a current image relative to the view-point reference image deduced by using a block smaller than 16×16 pixels as a base unit. The current macro block to be encoded is then encoded according to motion information of a macro block that the determined corresponding reference block belongs to. Other related video coding methods and corresponding codecs based on the MSM are also provided. Therefore, macro block motion information (MMI) of the currently encoded macro block at a corresponding position in the view-point reference image can be more accurately obtained, thereby improving a coding efficiency of the MSM. | 2010-09-02 |
20100220792 | Encoding device and decoding device - In the encoding/decoding system, when encoding an image, the image encoding device divides the encoding-target image into several subimages, and executes the encoding on the subimages in a direction moving away from the boundary of the divided subimages. In addition, when executing the encoding process, the image encoding device transmits pixels in the vicinity of the boundary of the subimages as uncompressed data, without encoding the pixels. Furthermore, when executing an encoding process, the image encoding device changes quantizing steps that are used in the encoding in accordance with a distance from the boundary so that an amount of data greater than or equal to a predetermined value can be assigned for the vicinity of the boundary by use of smaller quantizing steps. | 2010-09-02 |
20100220793 | BITSTREAM DECODING DEVICE AND METHOD - Disclosed are a bitstream decoding apparatus and a method thereof. The decoding apparatus can include: a decoder forming unit, configured to generate and output CSCI control information and connection control information by using partial decoder descriptions stored in a description storing unit; and a decoding solution, which selectively loads a plurality of functional units included in a toolbox by using the CSCI control information and the connection control information to decode a bitstream to video data. With the present invention, it is possible to decode various types of bitstreams according to each of various standards by using an identical information recognizing method. | 2010-09-02 |
20100220794 | DEBLOCKING FILTER WITH MODE CONTROL AND METHODS FOR USE THEREWITH - A video filter processes a video input signal having a frame type. The video filter includes a horizontal deblocking filter that is coupled to receive the video input signal and to produce a filtered video signal in response thereto. A vertical deblocking filter includes a mode controller that generates a mode control signal based on the frame type. A filter is selectively enabled based on the mode control signal, and wherein, when the filter is selectively enabled, the filter video deblock filters the filtered video signal to generate the processed video signal. | 2010-09-02 |
20100220795 | METHODS AND APPARATUS FOR ARTIFACT REMOVAL FOR BIT DEPTH SCALABILITY - There are provided methods and apparatus for artifact removal for bit depth scalability. The method and apparatus utilize an encoder for encoding an enhancement layer for at least a portion of a picture. A deblocking filter is applied at the enhancement layer for bit depth scalability. A decoding method and apparatus are described for decoding an enhancement layer for at least a portion of a picture, wherein the during the decoding process, a deblocking filter is applied at the enhancement layer for bit depth scalability. Furthermore, an encoder and method are described for encoding image data for at least one block of a picture, wherein a deblocking filter removes coding artifacts caused by local inverse tone mapping for intra-layer texture prediction for bit depth scalability. A decoding method and apparatus are described for decoding image data for at least one block of a picture, wherein a deblocking filter removes coding artifacts caused by local inverse tone mapping for intra-layer texture prediction for bit depth scalability. | 2010-09-02 |
20100220796 | METHODS AND APPARATUS FOR ARTIFACT REMOVAL FOR BIT DEPTH SCALABILITY - There are provided methods and apparatus for artifact removal for bit depth scalability. The method and apparatus utilize an encoder for encoding an enhancement layer for at least a portion of a picture. A deblocking filter is applied at the enhancement layer for bit depth scalability. A decoding method and apparatus are described for decoding an enhancement layer for at least a portion of a picture, wherein the during the decoding process, a deblocking filter is applied at the enhancement layer for bit depth scalability. Furthermore, an encoder and method are described for encoding image data for at least one block of a picture, wherein a deblocking filter removes coding artifacts caused by local inverse tone mapping for intra-layer texture prediction for bit depth scalability. A decoding method and apparatus are described for decoding image data for at least one block of a picture, wherein a deblocking filter removes coding artifacts caused by local inverse tone mapping for intra-layer texture prediction for bit depth scalability. | 2010-09-02 |
20100220797 | COMMUNICATION APPARATUS - When in-phase data with an amplitude of 1 is located in each subcarrier, the envelope waveform of a time domain signal contains guard band | 2010-09-02 |