02nd week of 2012 patent applcation highlights part 29 |
Patent application number | Title | Published |
20120008597 | CONTROLLING INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for controlling interference in a wireless communication system includes a first step of performing | 2012-01-12 |
20120008598 | METHOD AND APPARATUS FOR PERFORMING AN ACCESS PROCEDURE - A base station for controlling transmission power during the establishment of a communication channel utilizes the reception of a short code during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional access code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The power of the short code is quickly increased until the signal is detected by the base station. Once the base station detects the short code, it transmits an indication that the short code has been detected. | 2012-01-12 |
20120008599 | Reservation response and multi-user transmissions - In one embodiment, in absence of transmitting from an apparatus a reservation request frame, the apparatus receives a reservation response frame on an assigned channel. The reservation response frame indicates a duration of a frame transmission. In response to receiving the reservation response frame, the apparatus transmits a frame on the assigned channel during the frame transmission. In another embodiment, in response to receiving a reservation request frame on a first channel at an apparatus, the apparatus transmits a reservation response frame on the first channel and on at least one second channel. The reservation request frame indicates a duration of a frame transmission. The reservation response frame indicates the duration of the frame transmission. After transmitting the reservation response frame, this apparatus receives during the frame transmission a first frame on the primary channel and a second frame on the at least one secondary channel. | 2012-01-12 |
20120008600 | MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS - Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry. | 2012-01-12 |
20120008601 | Apparatus and Method for Scheduling in a Wireless Communication System - A method of scheduling an uplink (UL) data packet on a packet data network (PDN) connection of at least one radio bearer by a wireless communication unit comprises receiving, by the wireless communication unit, a signalling message comprising at least one scheduling priority parameter assigned to at least one uplink radio bearer, wherein the at least one scheduling priority parameter is based on at least one characteristic of the PDN connection that the radio bearer belongs to. The method further comprises determining, from the at least one scheduling priority parameter, at least one user transmission priority level associated with at least one PDN connection of at least one radio bearer; and scheduling at least one uplink data packet transmission in response to the at least one user transmission priority level. | 2012-01-12 |
20120008602 | Terminal Access Method and Terminal - The present invention discloses a terminal access method and a terminal, wherein the method comprises: calculating a length of an access message body of an access message ( | 2012-01-12 |
20120008603 | CONTENTION BASED PERIOD BEAMFORMING - Contention based period beamforming includes the establishment of synchronized communications between a beamforming initiator and a beamforming responder to precisely define a start time for beamforming training. Synchronization between the beamforming initiator and beamforming responder begins with the sending of control information to the responder so that the start of the beamforming process will be synchronized. With beamforming training synchronized, beamforming is initiated using the sector sweep process. | 2012-01-12 |
20120008604 | ENABLEMENT FOR REALLOCATED BANDWIDTH ENVIRONMENTS - A system for managing the enablement of beaconing in apparatuses operating in reallocated bandwidth corresponding to a geographic area. For example, apparatuses may initially determine whether they desire to operate as beaconing-type apparatuses or non-beaconing-type apparatuses. The apparatuses may then transmit enablement request frames comprising at least apparatus identification information and the previously determined desired beaconing or non-beaconing apparatus type. Apparatuses may then receive enablement request frames that at least designate the apparatuses as first tier beaconing apparatuses, second tier beaconing apparatuses or non-beaconing apparatuses. The apparatuses may then proceed to configure themselves based on the enablement information. | 2012-01-12 |
20120008605 | ADVERTISEMENT OF QUALITY OF SERVICE (QoS) INFORMATION FOR NETWORK MANAGEMENT TRAFFIC IN A WIRELESS LOCAL AREA NETWORK (WLAN) - An access point advertises a management frame quality of service (MFQ) policy that defines an access category used for transmitting a first type of management frame. Each mobile station associated with the access point is to prioritize transmission of management frames according to the MFQ policy advertised by the access point, unless a policy configuration request for the mobile station to prioritize transmission of management frames according to a different MFQ policy has been accepted. | 2012-01-12 |
20120008606 | WIRELESS COMMUNICATION SYSTEM AND RELATED METHOD THEREOF - A wireless communication system includes a first wireless device, a second wireless device, a determining device and an executing unit. The first wireless device is arranged for receiving a first signal, and the second wireless device is arranged for transmitting a second signal, where the first wireless device and the second wireless device conform to different communication standards, respectively. The determining device may determine a signal quality of the first signal received by the first wireless device, and accordingly generates a determining result. The executing unit refers to the determining result to select a target coexistence mechanism, which is shared by the first and second wireless devices, from a plurality of candidate coexistence mechanisms. | 2012-01-12 |
20120008607 | SYSTEM AND METHOD OF MAINTAINING A CONNECTION WITH A FIRST NETWORK WHILE PROCESSING COMMUNICATIONS WITH A SECOND NETWORK BY A COMMUNICATION DEVICE - The invention provides a method and device that communicate with a 802.11-class network and processes communications with a Bluetooth network. A passive beacon scan is conducted in a channel of a 802.11-class network through a series of spaced segments, such that the series of spaced segments represent a timeframe of a notional beacon period that would span a continuous period for the 802.11-class network; and data is transmitted from the communication device to the Bluetooth network between two of consecutive segments of the series of spaced segments. | 2012-01-12 |
20120008608 | METHOD, SYSTEM AND COMPONENTS FOR FACILITATING WIRELESS COMMUNICATION IN A SECTORED SERVICE AREA - A access point (AP) during wireless communication with at least one wireless transmit/receive unit (WTRU), transmits a beacon signal periodically among a plurality of sectors, each sector having its own sector identity, the beacon signal being periodically received at least once in a beacon period and the beacon period comprising a plurality of beacon service periods for all sectors. The AP determines a scheduling value to indicate a number of inactive beacon periods for a first sector to at least one WTRU located in the first sector. The scheduling value is transmitted with the sector identity for the first sector, such that a variable beacon period is established for the first sector, enabling the at least one WTRU located in the first sector to enter a sleep mode for an adjustable period of time. | 2012-01-12 |
20120008609 | METHOD AND COMMUNICATION DEVICE FOR FEEDING BACK AND RECEIVING PRE-CODING CONTROL INDICATION INFORMATION - The present invention relates to the field of wireless network communications, and provides a method and a device for receiving and sending Pre-coding Control Indication (PCI) information in uplink Multiple-Input Multiple Output (MIMO) transmission or uplink Closed Loop Transmit Diversity (CLTD) transmission, so as to solve a problem that the uplink MIMO communication from a terminal to a Base Station (BS) is unable to be realized in the prior art. A BS transmitting method includes carrying a code sequence, which represents PCI information, in a feedback channel of a BS. The beneficial effect of the present invention is: by feeding back the PCI information, the terminal realizes the maximization of a block length supported by an existing channel condition after the uplink MIMO is introduced, so as to improve an uplink transmission rate. | 2012-01-12 |
20120008610 | MIXED MODE PREAMBLE FOR MIMO WIRELESS COMMUNICATIONS - A preamble of a frame for a multiple input multiple output (MIMO) wireless communication for a first transmit antenna of the MIMO communication includes a legacy preamble portion in accordance with a legacy wireless communication protocol. The preamble of the frame for the MIMO wireless communication for the first transmit antenna also includes a current protocol preamble portion in accordance with a protocol of the MIMO wireless communication. The preamble of a frame for at least a second antenna of the MIMO communication includes a cyclically shifted legacy preamble portion for the frame. The preamble of the frame for the MIMO wireless communication for the second transmit antenna also includes a second current protocol preamble portion in accordance with a protocol of the MIMO wireless communication. | 2012-01-12 |
20120008611 | Method And System For Providing Wireless Service According To Multiple Wireless-Communication Protocols On A Single Radio-Frequency (RF) Carrier - Methods and systems are provided for providing wireless service using multiple protocols on a single radio-frequency (RF) carrier. According to an embodiment, a low-cost Internet base station (LCIB) provides wireless service on an RF carrier using a first wireless-communication protocol and provides wireless service on the RF carrier using a second wireless-communication protocol, where providing wireless service on the RF carrier using the first wireless-communication protocol and providing wireless service on the RF carrier using the second wireless-communication protocol occur at different times. The LCIB may alternate between providing wireless service using the first wireless-communication protocol and providing wireless service using the second wireless-communication protocol. | 2012-01-12 |
20120008612 | Mobile WLAN Gateway - A technique for operating a mobile station as wireless local-area network (WLAN) gateway. The mobile station is provided with a gateway application to control the following operations: activating the WLAN means as a WLAN base station capable of communicating with at least one WLAN terminal over a WLAN network; creating a network identifier for the WLAN base station; assigning an internet protocol address for the at least one WLAN terminal; resolving domain name service (DNS) queries in cooperation with an external DNS service system; assigning at least one port number for each protocol supported by the gateway application; and tunneling internet traffic between the at least one WLAN terminal and an internet host over the broadband connection. | 2012-01-12 |
20120008613 | Feedback Method For Performing A Feedback By Using A Codebook In Mimo System - A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information. | 2012-01-12 |
20120008614 | WIRELESS COMMUNICATION SYSTEM, TERMINAL APPARATUS, BASE STATION APPARATUS, CONTROL METHOD, PROGRAM, AND RECORDING MEDIUM - A wireless communication system of the present invention includes a plurality of cells in each of which a base station apparatus (BS) is provided, the base station apparatuses (BS) being connected to one another via a network, each of the base station apparatuses (BS), including: an interference quantity information storage section ( | 2012-01-12 |
20120008615 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, TERMINAL, WIRELESS COMMUNICATION METHOD, AND PROGRAM - Provided is a wireless communication technique capable of supporting communication using a single component carrier, and communication using a plurality of component carriers. The communication using the plurality of carriers is characterized by using a different signal sequence in each of the carriers, and using the signal sequences as reference signals. The present invention makes it possible to cope with the communication employing a single component carrier and the wireless communication employing a plurality of the component carriers. Further, PAPR of the reference signals can be made small because there is no possibility that the identical CAZAC sequence is used among the component carriers when a plurality of the component carriers are employed. | 2012-01-12 |
20120008616 | Apparatus and Method for Pilot Detection - Apparatus and method for communication are provided. The solution comprises obtaining as an input a signal; sampling the signal; feeding the sampled signal to a given number of parallel correlators having a given correlation length, controlling the correlation the sampled signal in each correlator with a unique time shift section of the pilot sequence of the communication system, determining the strongest correlation peaks, and determining on the basis of the correlation peaks and corresponding time shifts the strongest pilots in the signal. | 2012-01-12 |
20120008617 | HYBRID ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS WTRU AND METHOD - A hybrid orthogonal frequency division multiple access (OFDMA) wireless transmit/receive unit (WTRU) and method are disclosed. A WTRU includes a transmitter and a receiver. The receiver processes received data to recover data mapped to the subcarriers using OFDMA. The receiver recovers first input data by separating user data from multi-user spread data and recovers second input data from non-spread data. | 2012-01-12 |
20120008618 | METHODS AND APPARATUS FOR TIMING SYNCHRONIZATION USING MULTIPLE DIFFERENT TIMING SIGNAL SOURCES - A wireless terminal detects timing signals from different local timing signal sources. The wireless terminal selects from the plurality of detected timing signal sources two timing signal sources in accordance with a predetermined timing signal source priority ordering. In some embodiments, the wireless terminal intentionally selects two timing signal sources which are not synchronized with respect to one another. The wireless terminal determines a first set of peer communications time intervals corresponding to a first selected timing signal source and a second set of peer communications time intervals corresponding to a second selected timing signal source. The wireless terminal transmits a peer to peer signal, e.g., a peer discovery signal, during at least one of the first set of peer communications time intervals. The wireless terminal transmits a peer to peer signal, e.g., a peer discovery signal, during at least one of the second set of peer communications time intervals. | 2012-01-12 |
20120008619 | DIFFERENTIATION OF MULTIPLE MEDIA ENDPOINTS BEHIND AN ADDRESS TRANSLATION DEVICE - In one embodiment, two way communication between an IP phone behind a firewall and an IP phone behind a translation device is established. A network security device receives a remote packet from the translation device. The header of the remote packet includes the address of the translation device, and a payload of the remote packet includes an embedded remote address and the media port of the IP phone behind the translation device. A memory stores the media port matched with the address of the translation device. When the network security device receives a local packet from the IP phone behind the firewall destined for the IP phone behind the translation device, a controller rewrites the destination port of the local packet with the media port. | 2012-01-12 |
20120008620 | CONNECTION ARRANGEMENT - A plurality of inputs are configured to receive circuit switched traffic from a plurality of initiators. A plurality of outputs are configured to output said traffic to a network on chip. Each output is associated with a different quality of service traffic. A traffic controller directs the received circuit switched traffic to respective ones of the outputs in dependence on a quality of service associated with the traffic. | 2012-01-12 |
20120008621 | COMMUNICATING IN VOICE AND DATA COMMUNICATIONS SYSTEMS - A data and voice communication system includes communication between a line card and an accelerator card. Voice, data, and control traffic is received from the line card and is transmitted to the accelerator card via a physical link having separate voice, data, and control logical channels. The separate voice, data, and control logical channels are represented by labeled data packets. | 2012-01-12 |
20120008622 | METHOD, DEVICE AND SYSTEM FOR ESTABLISHING PSEUDO WIRE - A method for establishment a pseudo wire (PW) is disclosed, including: receiving a first label mapping (LM) message, where the first LM message carries a PW ID, PW parameters, and label switching path (LSP) tunnel information that are selected by the sender of the first LM message; matching a local PW according to the PW ID; performing parameter negotiation of the local PW according to the PW parameters; matching a local tunnel according to the LSP tunnel information; binding the local tunnel and the local PW when the matching between the PW ID and the LSP tunnel information is successful; and establishing a PW when the parameter negotiation is successful. A device and system for establishing a PW are also disclosed. With the present invention, a PW service is associated with an LSP tunnel to improve the reliability of the information transmission process. | 2012-01-12 |
20120008623 | Packet forwarding device - A power-saving packet forwarding device realizing electric power that accords to the number of lines in which communication is performed and a traffic volume inputted from the lines. A header processing unit with which the packet forwarding device is equipped has a plurality of packet processing circuits for performing a packet processing. A line number decision circuit monitors the number of lines in which communication is performed and a traffic volume inputted from the line, and decides presence or absence of an operation of a packet processing circuit. Based on this decision result, a power supply and a clock of the packet processing circuit that does not need to operate are interrupted, and accordingly power saving of the packet forwarding device is realized. | 2012-01-12 |
20120008624 | SYSTEMS AND METHODS FOR IMPLEMENTING A PROTOCOL-AWARE NETWORK FIREWALL - A method may include receiving a first packet; determining, in a first processor, whether the first packet meets a criterion to be forwarded to a destination indicated in the first packet; receiving a second packet; determining whether the second packet is of a type for changing the criterion and sending the second packet to a second processor if the second packets is of the type for changing the criterion; receiving instructions, based on the second packet sent to the second processor, to change the criterion; and changing the criterion. | 2012-01-12 |
20120008625 | SIGNALING AND MANAGEMENT OF BROADCAST-MULTICAST WAVEFORM EMBEDDED IN A UNICAST WAVEFORM - Embodiments describe overlaying a broadcast multicast channel on top of a unicast network. Messages can be generated by protocols in a broadcast/multicast (BCMC) stack and tunneled through an IRTP of a serving access node. These messages can be transmitted on a BCMC channel and/or a unicast channel. Other messages can be generated by protocols in a unicast stack and tunneled to a B-IRTP of a BCMC Access node and transmitted on a BCMC channel to an access terminal. | 2012-01-12 |
20120008626 | END NODE AND NETWORK COORDINATOR USING A CSMA BASED PROTOCOL - A communication protocol based on CSMA between a node, in particular an electronic label, and a network coordinator is disclosed. The node comprises: a transceiver provided for communication with a network coordinator, wherein the transceiver handles a transmission channel based on CSMA; a processing unit provided for processing data received via the transmission channel and displaying the data on a display unit. The electronic label is arranged to perform: sending recurrently a data request packet; going to a low power mode after sending the data request packet; and waking-up for receiving a data response packet a predefined time interval after beginning sending the data request packet. The network coordinator is arranged to transmit the data response packet the predefined time interval after receiving the beginning of the data request packet. The invention provides a protocol based on CSMA with very low power operation in which a multitude of end nodes could receive from a network coordinator their corresponding data. | 2012-01-12 |
20120008627 | METHOD AND APPARATUS FOR ASSIGNING DEVICE IDENTIFIER WITH COLLISION AVOIDANCE - One exemplary embodiment of the invention provides an apparatus to assign device identifier with collision avoidance in a distributed network environment. The apparatus may operate, for example, by using different control areas for different group of anchor DIDAFs, or the serving DIDAF/node may assign or cancel a set of available device IDs for an anchor DIDAF/node, so the anchor DIDAF/node may assign a device ID for a device in a control area of the serving DIDAF/node within the set of the available device IDs. In additions, the used and unused device ID assignment may be filtered by the serving DIDAF/node to allow or reject the device ID assignment or the serving DIDAF/node may translate the used device ID assigned by an anchor DIDAF/node to another unused device ID. | 2012-01-12 |
20120008628 | NETWORK COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A network communication apparatus connected to a network for communication using Internet Protocol version 6 (IPv6) addresses includes: a communication control unit configured to generate an IPv6 address of the network communication apparatus, and generate a packet including the generated IPv6 as a source IP address; and a communication interface unit configured to transmit the packet generated by the communication control unit. The communication control unit generates the IPv6 address by including communication to information in an interface ID in the IPv6 address, and the communication information includes information indicating a dynamically changeable communication environment between the network communication apparatus and another apparatus connected in the network. | 2012-01-12 |
20120008629 | COMMUNICATION SYSTEM, NODE, CONTROL SERVER,COMMUNICATION METHOD AND PROGRAM - A packet contains an array of processing operations that are to be performed by a node of a data forwarding network. Each node in a data forwarding network receiving performs the processing it has to the packet and perform in accordance with the array of the processing operations contained in the packet. | 2012-01-12 |
20120008630 | Border Gateway Protocol Extended Community Attribute for Layer-2 and Layer-3 Virtual Private Networks - Described are a network, computer program product, and method of distributing routing information for a virtual private network (VPN) application through a packet-switched network (PSN) having fully meshed provider edge (PE) routers through Provider Backbone Bridge (PBB) tunnels. A PE router is configured to participate in a VPN and to run a BGP (Border Gateway Protocol) as an auto-discovery process for finding one or more other PE routers participating in the VPN. The VPN is associated with a PBB tunnel. A service instance identifier (I-SID) is assigned to the VPN. The PE router advertises membership in the VPN by including the I-SID assigned to the VPN in a BGP message issued during the auto-discovery process. | 2012-01-12 |
20120008631 | Processor with packet ordering device - An advanced processor comprises a plurality of multithreaded processor cores each having a data cache and instruction cache. A data switch interconnect is coupled to each of the processor cores and configured to pass information among the processor cores. A messaging network is coupled to each of the processor cores and a plurality of communication ports. In one aspect of an embodiment of the invention, the data switch interconnect is coupled to each of the processor cores by its respective data cache, and the messaging network is coupled to each of the processor cores by its respective message station. Advantages of the invention include the ability to provide high bandwidth communications between computer systems and memory in an efficient and cost-effective manner. | 2012-01-12 |
20120008632 | Sharing Resource Reservations Among Different Sessions In RSVP-TE - A method to optimize resource allocation in a network employing MPL S, the method including the steps of communicating with a second node to establish a first LSP that includes a first node and the second node using an extension of RSVP-TE in a first RSVP-TE session having a group identifier. A resource controllable by the network element is allocated to the first LSP and is associated with the group identifier. The steps including communicating with a third node in the network to establish a second LSP that includes the first node and the third node using the extension of RSVP-TE through a second RSVP-TE session that is different than the first session and has the same group identifier. The resource is shared between the first LSP and the second LSP, because the same group identifier is associated with the first RSVP-TE session and second RSVP-TE session. | 2012-01-12 |
20120008633 | BRIDGE APPARATUS AND COMMUNICATION METHOD - A bridge apparatus including a first line card and a second line card is provided. The first line card includes a first memory storing an association between a line card and a destination address, a first receiver receiving a frame from the second line card including a flag indicating whether a memory of the second line card stores the destination address of the frame, a determination circuit determining whether the first memory stores the destination address of the received frame, when the first flag added to the received frame indicates that the second memory does not store the destination address of the frame, and a first transmitter transmitting, when the determination circuit determines the first memory stores the destination address of the frame, address information associated with at least the destination address of the frame to the second line card, the destination address being stored by the first memory. | 2012-01-12 |
20120008634 | FIRST RELAY SERVER AND SECOND RELAY SERVER - A communication system achieves excellent flexibility and expandability and includes communication terminals that communicate with each other through a WAN. A first relay server and a second relay server share relay group information and relay server information. In the relay group information, a network address of a first LAN that performs routing control via the first relay server and a network address of a second LAN that performs routing control via the second relay server are registered. The first and second relay servers establish a routing session via a WAN. When a communication terminal connected to the first LAN sends out a communication packet in which an IP address of a communication terminal connected to the second LAN is designated, the communication packet is routed through the routing session between the first and second relay servers while being encapsulated. | 2012-01-12 |
20120008635 | SYSTEM AND METHOD FOR PROVIDING NETWORK ROUTE REDUNDANCY ACROSS LAYER 2 DEVICES - Systems and methods are described for providing network route redundancy through Layer 2 devices, such as a loop free Layer 2 network having a plurality of switching devices. A virtual switch is coupled to the loop free Layer 2 network, the virtual switch having two or more switches configured to transition between master and backup modes to provide redundant support for the loop free Layer 2 network, the switches communicating their status through use of a plurality of redundancy control packets. The system also includes means for allowing the redundancy control packets to be flooded through the Layer 2 network. The means may include time-to-live data attached to the redundancy control packet which is decremented only when the packets are transferred through devices which are configured to recognize the protocol used in redundancy control packets. | 2012-01-12 |
20120008636 | DYNAMICALLY ADJUSTED CREDIT BASED ROUND ROBIN SCHEDULER - A credit based queue scheduler dynamically adjusts credits depending upon at least a moving average of incoming packet size to alleviate the impact of traffic burstiness and packet size variation, and increase the performance of the scheduler by lowering latency and jitter. For the case when no service differentiation is required, the credit is adjusted by computing a weighted moving average of incoming packets for the entire scheduler. For the case when differentiation is required, the credit for each queue is determined by a product of a sum of credits given to all queues and priority levels of each queue. | 2012-01-12 |
20120008637 | DIFFERENTIAL FRAME BASED SCHEDULING FOR INPUT QUEUED SWITCHES - A differential frame-based scheduling scheme is employed for input queued (IQ) switches with virtual output queues (VOQ). Differential scheduling adjusts previous scheduling based on a traffic difference in two consecutive frames. To guarantee quality of service (QoS) with low complexity, the adjustment first reserves some slots for each port pair in each frame, then releases surplus allocations and supplements deficit allocations according to a dichotomy order, designed for high throughput, low jitter, fairness, and low computational complexity. | 2012-01-12 |
20120008638 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MULTICAST BROADCAST SERVICE DATA - An MBS transmitting apparatus allocates a plurality of time intervals of an MBS transmission carrier to an MBS region and a non-MBS region and generates region allocation information of the MBS region and the non-MBS region. The MBS transmitting apparatus allocates the time intervals, allocated to the MBS region, to one or more MBS zones and generates MBS zone allocation information of the one or more MBS zones. The MBS transmitting apparatus transmits the region allocation information and the MBS zone allocation information and transmits the MBS data through the time intervals allocated to the MBS region. | 2012-01-12 |
20120008639 | System and Method for Operating with Groups of Communications Devices in a Wireless Communications System - A system and method for operating with groups of communications devices in a wireless communications system are provided. A method includes for each flow in at least one flow associated with communications devices in a group of communications devices served by a communications controller, determining a set of parameters for the flow, and transmitting the set of parameters to a communications device associated with the flow. | 2012-01-12 |
20120008640 | Method and Apparatus for Using Dynamic Subchannels in a Communications Network - A method and apparatus for attaining the benefits of both an adjacent subchannel assignments and distributed subchannel assignments. That is, the following is a method and apparatus for providing dynamic subchannel assignments that provide the benefits of both adjacent subchannel assignments and distributed subchannel assignments. | 2012-01-12 |
20120008641 | RECEIVING NODE IN A PACKET COMMUNICATIONS SYSTEM AND METHOD FOR MANAGING A BUFFER IN A RECEIVING NODE IN A PACKET COMMUNICATIONS SYSTEM - A receiving node for receiving data packets in a packet communications system comprises a buffer for storing data packets received at the receiving node and for releasing the stored data packets to an application element of the receiving node. A buffer window defines a time period in which data packets are received at the buffer. A position of the buffer window is moved in time periodically, and a stored data packet is released when it is at an end of the buffer window. The receiving node further comprises a packet delay determining element for determining, for each received data packet, a delay of a received data packet by determining the difference between an estimated time of arrival of a data packet at the receiving node and an actual time of arrival of the data packet at the receiving node, a delay processing element for determining an average of the determined delays of a plurality of data packets and for determining when a change in the determined average is greater than a first threshold, and a buffer window adjusting element for adjusting at a first rate a position of the buffer window by a first amount dependent on the determined average of the determined delays and for switching to adjust a position of the buffer window at a second rate by a second amount dependent on the determined average when a change in the determined average is greater than the first threshold. The second rate is greater than the first rate. | 2012-01-12 |
20120008642 | SYSTEMS AND METHODS FOR DIGITAL DATA TRANSMISSION RATE CONTROL - The present invention provides systems and methods for adaptive digital data transmission rate control. A digital data transmission system for adaptively transferring packets over a transmission link includes a client device having a bandwidth control module and a host device coupled to the client device over the transmission link. The host device includes one or more bandwidth control registers and a packet builder. The bandwidth control module determines a packet speed and/or size for packets transmitted from the host device to the client device over the transmission link. The bandwidth control registers store the requested packet size and/or rate. The packet builder accesses these registers when transmitting packets to determine the requested packet size and/or rate. | 2012-01-12 |
20120008643 | Cyclic Shift Delays In Multi-User Packets With Resolvable Very High Throughput Long Training Fields (VHTLTFs) - A system including a training field generator module, a stream generator module, and a cyclic shift delay module. The training field generator module generates training fields to be transmitted in a packet to client stations. The stream generator module generates streams to be transmitted in the packet. First streams (i) are designated for a first client station and (ii) include the training fields. Second streams (i) are designated for a second client station and (ii) include the training fields. The cyclic shift delay module applies cyclic shift delay values to the streams. First cyclic shift delay values are respectively applied to the first streams. Second cyclic shift delay values are respectively applied to the second streams. At least one of the second cyclic shift delay values is equal to one of the first cyclic shift delay values. Alternatively, the second values are different than the first values. | 2012-01-12 |
20120008644 | DATA COMMUNICATION SYSTEM, DATA TRANSMITTING APPARATUS, DATA TRANSMITTING METHOD, AND METHOD FOR DETERMINING PACKET SIZE AND REDUNDANCY - A data communication system includes a data transmitting apparatus and a data receiving apparatus. The data transmitting apparatus includes a packetizing section that generates data packets, an encoding section that performs redundant encoding on the data packets in predetermined time units and generates encoded blocks, a data transmitting section that transmits each encoded block to the data receiving apparatus, a data-size acquiring section that acquires a data size of transmission data in each predetermined time unit, and a packet-size determining section that, on the basis of the acquired data size, in each predetermined time unit, determines a packet size of each data packet. The data receiving apparatus includes a data receiving section that acquires data packets of the transmission data by receiving each encoded block transmitted, and a depacketizing section that analyzes the data packets of the acquired transmission data and reconfigures the transmission data. | 2012-01-12 |
20120008645 | SYSTEMS, PROCESSES AND INTEGRATED CIRCUITS FOR RATE AND/OR DIVERSITY ADAPTATION FOR PACKET COMMUNICATIONS - A media over packet networking appliance provides a network interface, a voice transducer, and at least one integrated circuit assembly coupling the voice transducer to the network interface. The at least one integrated circuit assembly provides media over packet transmissions and holds bits defining reconstruction of a packet stream having a primary stage and a secondary stage. The secondary stage has one or more of linear predictive coding parameters, long term prediction lags, parity check, and adaptive and fixed codebook gains. The packet stream has an instance of single packet loss, and the reconstruction includes receiving a packet sequence represented by P(n)P(n−1)′, [Lost Packet], P(n+2)P(n+1)′, and P(n+3)P(n+2)′, obtaining as information from the secondary stage one or more of the linear predictive coding parameters, long term prediction lags, parity check, and adaptive and fixed codebook gains, and performing an excitation reconstruction utilizing said packet sequence thus received. | 2012-01-12 |
20120008646 | Deterministic Placement of Timestamp Packets Using a Periodic Gap - An apparatus comprising a timestamp support logic component configured to identify a plurality of timestamps for a plurality of network nodes on a single link and align the timestamps in a plurality of corresponding time slots for the network nodes within a periodic transmission time window and a scheduler coupled to the timestamp support logic component and configured to align a plurality of packets that do not comprise timestamps in a corresponding time slot subsequent to the time slots for the timestamps in the periodic transmission time window. | 2012-01-12 |
20120008647 | LIGHT EMITTING DEVICE - Disclosed is a white light emitting device including a semiconductor light emitting element configured to emit near ultraviolet light having a peak wavelength ranging from 380 to 410 nm, a first phosphor layer and a second phosphor layer. The first phosphor layer contains a blue-emitting phosphor configured to emit blue light by the near ultraviolet light, and a red-emitting phosphor activated by trivalent europium and configured to emit red light by the near ultraviolet light. The second phosphor layer contains a green-emitting phosphor configured to emit green light by the near ultraviolet light. The semiconductor light emitting element, the first phosphor layer and the second phosphor layer are laminated in this order to emit white light. | 2012-01-12 |
20120008648 | High Power Processing Fiber Cable with Integrated Beam Expander and Method of Use - The present disclosure is a system for the protection of a fiber within a laser system. The system has a water-cooled housing supporting a termination block, which is operative to shield a protective layer of a delivery fiber from back-reflected beams of light. The termination block is manufactured from quartz and is frustconical in configuration and fuseable to the delivery fiber. The delivery fiber has a polymeric protective layer with an acceptance end and a delivery end, and passes through a washer contained within the housing; the washer has a dielectric reflective coating. The system has at least one terminal block connector which further comprises a cone termination block, a reflector, and a set of light guards. The cone termination block is spliced to an output end of the delivery fiber and produces an angle λ so as to reduce propagation of back-reflected light. The reflector is positioned so as to block additional back-reflected light from the protective layer of the delivery fiber. | 2012-01-12 |
20120008649 | HIGH POWER SHORT PULSE FIBER LASER - A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs. | 2012-01-12 |
20120008650 | HYBRID INTEGRATED TUNEABLE LASER - A hybrid integrated tuneable optical laser device, suitable for tuning to different wavelengths via a piezo micromotor ( | 2012-01-12 |
20120008651 | METHOD OF MATERIAL PROCESSING WITH LASER PULSES HAVING A LARGE SPECTRAL BANDWIDTH AND APPARATUS FOR CARRYING OUT SAID METHOD - A method and device for processing materials with laser pulses having a large spectral bandwidth and a device for carrying out said method. The aim of the invention is to create an easy, flexible method enabling universally applicable processing which can, however, be adapted to specific processing and methodological requirements. According to the invention, one or several spectral parameters of the laser pulses, i.e. the spectral amplitude and/or spectral phase and/or spectral polarization thereof, is/are specifically modified, preferably according to a measuring process variable, in order to process material or during the occurrence of said processing. The invention is used in order to process material with laser pulses having a large spectral bandwidth, particularly femto-second pulses and pico-second pulses. | 2012-01-12 |
20120008652 | OPTICAL FREQUENCY STABILIZATION SYSTEM AND METHOD - One embodiment of the invention includes an optical system. The optical system includes an optical cavity comprising a plurality of reflectors. The optical system also includes optics configured to provide a first optical signal and a second optical signal into respective inputs of the optical cavity to be substantially concurrently resonated within the optical cavity. The first and second optical signals can have distinct wavelengths. | 2012-01-12 |
20120008653 | Laser System with Dynamically Stabilized Transient Wavelength and Method of Operating Same - A method and laser system for dynamically adjusting a transient wavelength of light pulses emitted by a laser includes sequential processing of transient photocurrent curves which are generated after interaction between each light pulse and wavelength-selective medium which is configured with a known spectral peak line selected in the range of the transient wavelength. The method further includes continuously processing parameters of sequentially generated curves until the processed parameters are repeatedly uniform. | 2012-01-12 |
20120008654 | LASER GAIN MEDIUM AND LASER OSCILLATOR USING THE SAME - A laser gain medium includes an optical medium configured to transmit a laser beam and having an incident face, a first face, a second face opposing to the first face; and gain media configured to amplify the laser beam while reflecting the laser beam. At least one of the gain media is joined on a first face of the optical medium as a first face gain medium, and at least one of the remaining gain media is joined on a second face of the optical medium as a second face gain medium. The laser beam is incident into the optical medium, and is amplified by the first face gain medium and the second face gain medium while being alternately reflected by the first face gain medium and the second face gain medium. | 2012-01-12 |
20120008655 | HEAT SINK, METHOD OF PRODUCING SAME, AND SEMICONDUCTOR LASER DEVICE - A heat sink enabled to prevent structural deterioration of an inner wall of a flow channel caused by corrosion a semiconductor laser device are provided. The heat sink includes a main body, a flow channel which is provided in the main body, and inside which a cooling medium passes through, and a passivation film covering an inner-wall surface of the flow channel. | 2012-01-12 |
20120008656 | DEVICE FOR JUDGING STATE OF SEMICONDUCTOR LASER AND METHOD FOR JUDGING STATE OF SEMICONDUCTOR LASER - A device includes: a providing unit that provides a driving electric current to a semiconductor laser, the electric current being superimposed a first alternating current signal having a first frequency at a low side of an operational range of the semiconductor laser and a second alternating current signal having a second frequency at a high side of the operational range; a first filter that extracts a first component corresponding to the first frequency from a voltage to be applied to the semiconductor laser; a second filter that extracts a second component corresponding to the second frequency from the voltage to be applied to the semiconductor laser; and a judge circuit that judges a state of the semiconductor laser based on a first differential resistance obtained from the result of the extracting by the first filter and a second differential resistance obtained from the result of the extracting by the second filter. | 2012-01-12 |
20120008657 | Laser diode - A laser diode with an improved kink level in the L-I characteristic and capable of obtaining a stable high output in a horizontal transverse mode is provided. The laser diode includes an active layer made of nitride III-V compound semiconductor containing at least gallium (Ga) in 3B-group elements and at least nitrogen (N) in 5B-group elements, an n-type compound semiconductor layer provided on one of faces of the active layer, and a p-type compound semiconductor layer provided on the other face of the active layer. A region closest to the active layer, in the n-type compound semiconductor layer is a high-concentration region whose impurity concentration is higher than that of the other n-type regions. | 2012-01-12 |
20120008658 | HYBRID VERTICAL-CAVITY LASER - The present invention provides a light source ( | 2012-01-12 |
20120008659 | SURFACE EMITTING LASER - A surface emitting laser includes a cavity region formed on a group-III-V compound substrate, which includes an active layer and a current confinement layer that has an aluminum oxide compound and confines a current path through which a current is injected into the active layer, an upper DBR mirror and a lower DBR mirror formed on the substrate, sandwiching the cavity region, and a graded-composition layer disposed to contact the current confinement layer, which has an aluminum composition ratio decreasing monotonically as a distance from the current confinement layer increases. The graded-composition layer includes a first region that contacts the current confinement layer and an oxidation stop layer that contacts the first region and that has a change rate of the aluminum composition ratio larger than that of the first region. The graded-composition layer is oxidized from an interface with the current confinement layer to at least a portion of the oxidation stop layer. | 2012-01-12 |
20120008660 | III-NITRIDE SEMICONDUCTOR LASER, AND METHOD FOR FABRICATING III-NITRIDE SEMICONDUCTOR LASER - Provided is a III-nitride semiconductor laser allowing for provision of a low threshold with use of a semipolar plane. A primary surface | 2012-01-12 |
20120008661 | APPARATUS FOR MEASURING THE POSITION OF THE ELECTRODES IN AN ELECTRIC FURNACE - An apparatus for measuring the position of the electrodes in an electric furnace which envisages an electrode-holder column ( | 2012-01-12 |
20120008662 | Method and Apparatus for Measurement of Temperature and Rate of Change of Temperature - A method and apparatus is presented for obtaining of accurate measurements of the temperature of a thermocouple and high fidelity measurements of the rate of change of the temperature of a thermocouple. A first sub-circuit is connected to the thermocouple with two conductors made of two different thermocouple alloys which are substantially the same as the alloys used in the construction of the thermocouple. A second sub-circuit is connected to the thermocouple with two conductors made of substantially identical material, such as copper. The first sub-circuit provides an accurate measurement of the temperature of the thermocouple. The second sub-circuit provides a high fidelity measurement of the rate of change of the temperature of the thermocouple. | 2012-01-12 |
20120008663 | OFDM Synchronization and Signal Channel Estimation - OFDM synchronization and signal channel estimation is accomplished by adding pilot signals to the outputs of OFDM encoders, i.e. after encoding of data/symbols, in a spread spectrum wireless communication system utilizing uniquely designed OFDM transmitters, OFDM receivers and OFDM systems and methods. | 2012-01-12 |
20120008664 | DEVICE FOR CONTROLLING THE FREQUENCY OF A SATELLITE REMOTE-CONTROLLED TRANSMITTER/RECEIVER, AND RELATED TRANSMITTER AND RECEIVER - Device for controlling a frequency F of a TTC satellite link transmitter and/or receiver on the basis of a frequency command whose value is taken in a predetermined frequency plan composed of several frequency notches distributed in a discontinuous manner in a given frequency band, said device including a quartz oscillator delivering a reference frequency F | 2012-01-12 |
20120008665 | Secured Broadband Device - Secured broadband devices and methods for providing broadband communication are provided. A broadband device may include a housing, at least one broadband component, and a securing mechanism. The at least one broadband component may be situated within the housing and configured to receive a broadband signal. Additionally, the at least one broadband component may be configured to output at least a portion of the broadband signal for receipt by one or more external devices. The securing mechanism configured to secure the housing to an electrical outlet. | 2012-01-12 |
20120008666 | ENHANCED BLOCK CODING METHOD BASED ON SMALL SIZE BLOCK CODE - A scheme of enhanced block coding based on small size block code is provided. Such is achieved by obtaining extended basis sequences for a (32, O) code with O=1, 2, . . . 12; selecting an offset starting value that produces maximum error correction capability in each O value; and generating basis sequences for a (48, O) code based on the obtained extended basis sequences for the (32, O) code with the offset starting value selected based on the selecting step. The offset starting value could be selected as 18, which results in the largest sum of distances. | 2012-01-12 |
20120008667 | COMMUNICATION APPARATUS AND METHOD IN PLC - Disclosed is a communication apparatus and method in a programmable logic controller (PLC). In a communication method, a micro processing unit (MPU) decides whether or not an interrupt signal is generated. When it is decided that the interrupt signal has been generated, the MPU communicates with an external programming and debugging tool (PADT). | 2012-01-12 |
20120008668 | Wireless Digital Subscriber Line Device having Reduced RF Interference - A system and method for wireless DSL routing without signal interference is disclosed herein. The system includes a DSL interface, a WLAN interface, and a power system. The WLAN interface is isolated from the rest of the system by various isolation and signal interference reduction techniques. The system can be implemented in a single printed circuit board. | 2012-01-12 |
20120008669 | POWER DETECTOR AND WIRELESS DEVICE - According to one embodiment, a power detector includes a reference voltage generator, a square signal generator, a detection circuit, and an output circuit. The reference voltage generator is configured to receive a bias voltage and generate a reference voltage. The square signal generator is configured to receive a voltage having a high frequency input voltage superimposed on the bias voltage and output a signal including the reference voltage, a voltage of a square of the high frequency input voltage, and a high-frequency signal. The detection circuit has a first lowpass filter, a first operational amplifier configured to amplify error between an output voltage of the first lowpass filter and the reference voltage and output the error as a control voltage, and a feedback transistor configured to feed a feedback current according to the control voltage back to an output terminal of the square signal generator. | 2012-01-12 |
20120008670 | SELF-TESTING APPARATUS AND METHOD FOR PHASE ADJUSTMENT CIRCUIT - A signal inversion unit inverts an adjustment pattern signal input as received data. A clock adjustment control circuit acquires a first TAP value adjusted and obtained when a phase adjusting operation is performed on a clock adjustment circuit in a state in which the adjustment pattern signal is not inverted, a first detection frequency of the adjustment pattern signal in a runtime of the operation, a second TAP value adjusted and obtained when the phase adjusting operation is performed in a state in which the adjustment pattern signal is inverted by the signal inversion unit, and a second detection frequency of the adjustment pattern signal in the runtime of the operation. A controller tests an operating state of the phase adjusting operation based on the first and second TAP values and the first and second detection frequencies of the adjustment pattern obtained by the clock adjustment control circuit. | 2012-01-12 |
20120008671 | PROGRAMMABLE PREAMBLE SYSTEM AND METHOD - A system includes a first communication device and a second communication device. The first communication device includes a programmable region. The programmable region of the first communication device is programmed so that an associated signal includes a number of preamble cycles. The second communication device also can include a programmable region. The programmable region of the second communication device can be programmed so that an associated signal includes a number of preamble cycles. The number of preamble cycles can be based on a variety of factors, such as the topology or implementation of the system. In an embodiment, the number of preamble cycles is associated with a data strobe signal, and data is not read or written in response to the data strobe signal until all of the preamble cycles have been transmitted and received. | 2012-01-12 |
20120008672 | SYSTEM AND METHOD FOR TRANSMISSION, PROCESSING, AND RENDERING OF STEREOSCOPIC AND MULTI-VIEW IMAGES - A digital image processing system takes color plus Z channel data as input, preprocesses, decimates, and codes the Z channel in-band as digital watermark data embedded within the color data prior to encoding and transmission. A second digital image processing system receives, decodes, and extracts the decimated Z channel data before applying statistical regularization to restore a full-resolution Z channel prior to depth-image-based rendering. | 2012-01-12 |
20120008673 | System, Method, and Apparatus for Detecting and Classifying Artifacts in Digital Images and Video - A system, method, and apparatus for detecting and classifying artifacts in digital images and video is described. In one aspect, a video quality meter is described for detecting a classifying artifacts in digital video, including a parsing module that parses a video data stream into at least one subsample region, an initial artifact scoring module that computes a coarse interlace artifact score for the at least one subsample region, a coarse score modification module that compares the coarse interlace artifact score with previous coarse interlace artifact scores, to produce a modified coarse interlaced artifact score, an extraction module that processes the subsample region to extract local and global levels of spatial and temporal details of the subsample region and generate local and global spatial and temporal masks, a masking module that performs granular score modification based on the modified coarse interlaced artifact score and the local and global spatial and temporal masks, to provide masked artifact scores, and a combining module that combines the masked artifact scores to output a final interlaced artifact score. | 2012-01-12 |
20120008674 | MULTITHREAD PROCESSOR AND DIGITAL TELEVISION SYSTEM - A multithread processor including: an execution unit including a physical processor; and a translation lookaside buffer (TLB) which converts, to a physical address, a logical address output from the execution unit, and logical processors are implemented on the physical processor, a first logical processor that is a part of the logical processors constitutes a first subsystem having a first virtual space, a second logical processor that is a part of the logical processors and different from the first logical processor constitutes a second subsystem having a second virtual space, each of the first and the second subsystems has processes to be assigned to the logical processors, and the logical address includes: a first TLB access virtual identifier for identifying one of the first and the second subsystems; and a process identifier for identifying a corresponding one of the processes in each of the first and the second subsystems. | 2012-01-12 |
20120008675 | CODING SYNTAX ELEMENTS FOR ADAPTIVE SCANS OF TRANSFORM COEFFICIENTS FOR VIDEO CODING - In one example, an apparatus for encoding video data includes a video encoder configured to scan a two-dimensional block of transform coefficients to produce a one-dimensional vector of the transform coefficients, determine values indicative of whether the transform coefficients in the one-dimensional vector are significant; and entropy encode at least one of the values using a context model selected based on at least a percentage of significant coefficients in a predetermined number of the values encoded before the at least one of the values. | 2012-01-12 |
20120008676 | METHOD AND APPARATUS FOR ENCODING VIDEO BY USING BLOCK MERGING, AND METHOD AND APPARATUS FOR DECODING VIDEO BY USING BLOCK MERGING - Provided are a method and apparatus for encoding a video by using block merging and a method and apparatus for decoding a video by using block merging. The method of encoding includes: determining an encoding mode indicating a current data unit for encoding of a picture and an encoding method including prediction encoding performed for the current data unit; determining an occurrence of merging with at least one neighboring data unit based on at least one of the encoding mode and a prediction mode; and determining prediction mode information, merging related information, and prediction related information, and determining encoding information of the data unit including the prediction mode information, the merging related information, and the prediction related information. | 2012-01-12 |
20120008677 | H.264/AVC BASED APPROACH TO SCALABLE VIDEO COMPRESSION - A scalable video compression method and apparatus for encoding an input frame sequence having temporally sequential frames includes partitioning each of the frames of the input frame sequence into a top field and a bottom field to form a base layer sequence of fields and an enhancement layer sequence of fields. The base layer sequence and the enhancement layer sequence each comprise temporally alternating top and bottom fields of the partitioned frames of the input frame sequence. The base layer sequence and the enhancement layer sequence are encoded, wherein at least one field of the enhancement layer sequence is encoded in dependence upon at least one of the fields of the base layer sequence. | 2012-01-12 |
20120008678 | Quantization Control for Variable Bit Depth - The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which function QSN has been normalized to the most significant bit of the bit depth of the digital symbols. As a result, the effect of a given QP is essentially independent of bit depth a particular QP value has a standard effect on image quality, regardless of bit depth. The invention is useful, for example, in encoding and decoding at different bit depths, to generate compatible, bitstreams having different bit depths, and to allow different bit depths for different components of a video signal by compressing each with the same fidelity (i.e., the same QP). | 2012-01-12 |
20120008679 | 4:4:4 COLOR SPACE VIDEO WITH 4:2:0 COLOR SPACE VIDEO ENCODERS AND DECODERS SYSTEMS AND METHODS - A system for communicating video, the video including 4:4:4 color space frames, includes a 4:2:0 video encoder having a 4:4:4 to 4:2:0 color space frame converter and a 4:2:0 video decoder having a 4:2:0 to 4:4:4 color space frame converter, communicatively connected to the 4:2:0 video encoder. The 4:2:0 video encoder, without conversion by the 4:4:4 to 4:2:0 color space converter, communicates the video as a plurality of encoded 4:2:0 color space frames to the decoder. The 4:2:0 video decoder, without conversion by the 4:2:0 to 4:4:4 color space frame converter, saves the video as a plurality of 4:4:4 color space frames in memory. Each of the 4:4:4 color space frames in memory of the decoder device is identical to its corresponding 4:4:4 color space frame of the video at the encoder device. | 2012-01-12 |
20120008680 | METHODS AND DEVICES FOR DATA COMPRESSION USING ADAPTIVE RECONSTRUCTION LEVELS - Encoding and decoding methods that perform quantization using adaptive reconstruction levels are presented. The reconstruction levels for a given partitioning of the data space may be selected based upon the distribution of data points within each sub-part defined by the partitioning. In some cases, the adaptive reconstruction levels may be based upon an average of the data points within each sub-part. In some cases, the adaptive reconstruction levels may be selected using a rate-distortion analysis including the quantization distortion associated with the levels versus the data points and the rate associated with transmitting the encoded adaptive reconstruction levels. The methods relate to data compression in a range of applications including audio, images and video. | 2012-01-12 |
20120008681 | LOSS-ROBUST VIDEO TRANSMISSION USING TWO DECODERS - Disclosed herein is a method of decoding a sequence of prediction-coded video frames using a primary and a secondary state-dependent decoder. The method includes receiving an incomplete frame at the primary decoder, copying a state of the primary decoder into the secondary decoder, decoding and outputting the incomplete frame and subsequent frames at the primary decoder, receiving data restoring the incomplete frame, decoding the restored incomplete frame and subsequent frames at the secondary decoder until the secondary decoder has caught up with the primary decoder; and copying the state of the secondary decoder into the primary decoder; wherein the secondary decoder has access to the subsequent frames received after the incomplete frame. | 2012-01-12 |
20120008682 | VIDEO CODING USING DIRECTIONAL TRANSFORMS - In one example, an apparatus for encoding video data includes a video encoder configured to calculate a residual block for a block of video data based on a predicted block formed using an intra-prediction mode, and transform the residual block using a transform mapped from the intra-prediction mode. In another example, an apparatus includes video encoder configured to receive an indication of a first intra-prediction mode in a first set of intra-prediction modes for a block of video data, determine a second intra-prediction mode from a second set of intra-prediction modes, smaller than the first set of intra-prediction modes, to which the first intra-prediction mode is mapped, determine a directional transform to which the second intra-prediction mode is mapped, and apply the directional transform to residual data of the block. | 2012-01-12 |
20120008683 | SIGNALING SELECTED DIRECTIONAL TRANSFORM FOR VIDEO CODING - In one example, an apparatus for encoding video data includes a video encoder configured to select an intra-prediction mode to use to encode a block of video data, determine whether the block includes a sub-block of a size for which multiple transforms are possible based on the size of the sub-block and the selected intra-prediction mode, when the block includes the sub-block of the size for which multiple transforms are possible based on the size of the sub-block and the selected intra-prediction mode, select one of the multiple possible transforms, transform the sub-block using the selected one of the multiple possible transforms, and provide an indication of the selected one of the multiple possible transforms for the size of the block. | 2012-01-12 |
20120008684 | METHOD AND APPARATUS OF ENCODING AND DECODING VIDEO SIGNAL - Provided are methods and apparatuses for encoding and decoding a video including a plurality of color components. The method of encoding includes: splitting a first color component block and neighboring pixels of the first color component block into N segments, where N is an integer, based on pixel values of the first color component block which have been previously encoded and then restored; splitting a second color component block, corresponding to the first color component block, and neighboring pixels of the second color component block into N segments according to the N segments of the first color component block and the neighboring pixels of the first color component block; predicting the N segments of the second color component block by using the neighboring pixels of the second color component block split into the N segments; and encoding the second color component block, based on a result of the prediction. | 2012-01-12 |
20120008685 | IMAGE CODING DEVICE AND IMAGE CODING METHOD - A reference picture selection unit compares a predicted inter-coding amount indicating a predicted amount of coding required to perform inter prediction on a coding-target field and a predicted intra-coding amount indicating a predicted amount of coding required to perform intra prediction on the coding-target field. Upon determining that the predicted inter-coding amount is relatively larger than the predicted intra-coding amount, the reference picture selection unit switches the reference picture from a field having the same parity as the coding-target field to a field which is referable and temporally closest to the coding-target field. | 2012-01-12 |
20120008686 | MOTION COMPENSATION USING VECTOR QUANTIZED INTERPOLATION FILTERS - The present disclosure describes use of dynamically assignable interpolation filters as part of motion compensated prediction. An encoder and a decoder each may store common codebooks that define a variety of interpolation filters that may be applied to predicted video data. During runtime coding, an encoder calculates characteristics of an ideal interpolation filter to be applied to a reference block that would minimize prediction error when the reference block would be used to predict an input block of video data. Once the characteristics of the ideal filter are identified, the encoder may search its local codebook to find a filter that best matches the idea filter. The encoder may filter the reference block by the best matching filter stored in the codebook as it codes the input block. The encoder also may transmit an identifier of the best matching filter to a decoder, which will use the interpolation filter on predicted block as it decodes coded data for the block. | 2012-01-12 |
20120008687 | VIDEO CODING USING VECTOR QUANTIZED DEBLOCKING FILTERS - The present disclosure is directed to use of dynamically assignable deblocking filters as part of video coding/decoding operations. An encoder and a decoder each may store common codebooks that define a variety of deblocking filters that may be applied to recovered video data. During run time coding, an encoder calculates characteristics of an ideal deblocking filter to be applied to a mcblock being coded, one that would minimize coding errors when the mcblock would be recovered at decode. Once the characteristics of the ideal filter are identified, the encoder may search its local codebook to find stored parameter data that best matches parameters of the ideal filter. The encoder may code the reference block and transmit both the coded block and an identifier of the best matching filter to the decoder. The decoder may apply the deblocking filter to mcblock data when the coded block is decoded. If the deblocking filter is part of a prediction loop, the encoder also may apply the deblocking filter to coded mcblock data of reference frames prior to storing the decoded reference frame data in a reference picture cache. | 2012-01-12 |
20120008688 | Method and Apparatus of Temporal Motion Vector Prediction - An apparatus and method for motion vector prediction for a current block in a picture are disclosed. In video coding systems, the spatial and temporal redundancy is exploited using spatial and temporal prediction to reduce the information to be transmitted. Motion Vector Prediction (MVP) has been used to further conserve the bitrate associated with motion vector. In conventional temporal MVP, the predictor is often based on a single candidate such as the co-located motion vector in the previous frame/picture. If the co-located motion vector in the previous frame/picture does not exist, the predictor for the current block is not available. A technique for improved MVP is disclosed where the MVP utilized multiple candidates based on co-located motion vectors from future and/or past reference pictures. The candidates are arranged according to priority order to provide better availability of MVP and also to provide more accurate prediction. Furthermore, the MVP technique disclosed can be operated in a closed-loop fashion so that no additional side information or minimum additional side information is required. | 2012-01-12 |
20120008689 | FRAME INTERPOLATION DEVICE AND METHOD - To interpolate a frame between two frames of a video signal, sets of reference images are generated, each set having a different resolution level. Motion between the two frames is estimated at each resolution level by using these sets of reference images. For each pixel processed at each resolution level, multiple motion vector candidates are obtained. Information indicating the multiple motion vector candidates is used to select motion search ranges at the next higher resolution level. To determine the motion search range for a pixel, selected motion vector candidates pertaining both to the pixel itself and to its neighboring pixels are used. An interpolated frame of high image quality is thereby obtainable without increased computation and with reduced risk of major image defects due to erroneous motion estimation. | 2012-01-12 |
20120008690 | METHODS AND APPARATUSES FOR ENCODING AND DECODING MOTION VECTOR - Encoding and decoding a motion vector using a motion vector of a current block of a current picture, which indicates a region corresponding to the current block in a first reference picture and one of generating a motion vector predictor from a motion vector of the adjacent block having a motion vector referring to the first reference picture among adjacent blocks encoded before the current block and a motion vector of an adjacent block referring to a second reference picture other than the first reference picture. | 2012-01-12 |
20120008691 | METHOD AND APPARATUS FOR REGION-BASED WEIGHTED PREDICTION WITH IMPROVED GLOBAL BRIGHTNESS DETECTION - A method and apparatus for determining a region-based weighted prediction with improved global brightness detection. The method includes applying a global brightness change detection methods by computing the weighted prediction parameters, determining if the brightness change is different amount of change for the different regions, if the change is not different, calculate motion estimation and setting Refidx to 1 and setting Refidx is set to 0 when there is change, determining the best motion vector, motion vector cost and the best reference input, and determining a region-based weighted prediction with improved global brightness detection based on the motion vector data. | 2012-01-12 |
20120008692 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - The image processing device generating an interpolated picture between two temporally former and latter original pictures included in an inputted moving picture to convert a frame rate of the moving picture includes: a motion vector detection unit configured to detect a motion vector quantity between the original pictures for each of blocks obtained by dividing the original picture; a compensation strength determination unit configured to determine, for each predetermined region composed of the blocks a motion compensation strength indicating a degree of matching between the original picture and the interpolated picture based on the detected motion vector quantities; and an interpolated picture generation unit configured to generate, for each predetermined region, the interpolated picture in accordance with the determined motion compensation strength. | 2012-01-12 |
20120008693 | Substituting Embedded Text for Video Text Images - During encoding, blank frames may be substituted for text images in video content, encoding the blank frames instead of the text images. The text images may be any kind of text images such as opening credits, ending credits, and so on. The selection of text images to substitute may be performed by optical character recognition, user selection and so on. The text associated with the text images may be embedded in the encoded video. If the text is already embedded, an indicator of the location may be added. If not, the text may be derived from the text image using optical character recognition and then embedded. When decoded, the encoded video may be analyzed to determine whether blank frames were substituted for text images. Embedded text associated with the text images may then be located, obtained, and added to the decoded video. Thus, the original text images are essentially reconstructed. | 2012-01-12 |
20120008694 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING GRAPHICAL DATA - A method and apparatus for transmitting and receiving graphical data are provided. The apparatus for transmitting includes a graphical data generating unit that generates graphical data; an encoder that converts the graphical data into a JPEG 2000 code stream; and a transmitting unit that transmits video streams and the code stream. The apparatus for receiving includes a receiving unit that extracts an JPEG 2000 code stream; a decoder that decodes the code stream; and a display unit that displays a video stream included in the received stream and the decoded code stream. The method for transmitting the graphical data includes generating graphical data; converting the data into a JPEG 2000 code stream; and transmitting video streams and the JPEG 2000 code stream. The method for receiving the graphical data includes extracting a JPEG 2000 code stream; decoding the code stream; and displaying the decoded code stream and a video stream. | 2012-01-12 |
20120008695 | ENCODING WITH VISUAL MASKING - Some embodiments of the invention encode a sequence of video images based on “visual masking” attributes of the video images and/or portions of the video images. Visual masking of an image or a portion of the image is an indication of how much coding artifacts can be tolerated in the image or image portion. To express the visual masking attribute of an image or an image portion, some embodiments compute a visual masking strength that quantifies the brightness energy of the image or the image portion. In some embodiments, the brightness energy is measured as a function of the average luma or pixel energy of the image or image portion. | 2012-01-12 |
20120008696 | COMPRESSION OF BASEBAND SIGNALS IN BASE TRANSCEIVER SYSTEM PROCESSORS - A signal compression method and apparatus for a base transceiver system (BTS) in a wireless communication network provides efficient transfer of compressed signal samples over serial data links in the system. For the uplink, an RF unit of the BTS compresses baseband signal samples resulting from analog to digital conversion of a received analog signal followed by digital downconversion. The compressed signal samples are transferred over the serial data link to the baseband processor then decompressed prior to normal signal processing. For the downlink, the baseband processor compresses baseband signal samples and transfers the compressed signal samples to the RF unit. The RF unit decompresses the compressed samples prior to digital upconversion and digital to analog conversion to form an analog signal for transmission over an antenna. Compression and decompression can be incorporated into operations of conventional base stations and distributed antenna systems, including OBSAI or CPRI compliant systems. | 2012-01-12 |