50th week of 2010 patent applcation highlights part 28 |
Patent application number | Title | Published |
20100316023 | Method for Switching Service Option to Circuit Data - This invention discloses a method for switching SO (Service Option) to circuit data, including the following steps: step 1, a mobile station notifies a source BS (Base Station) and/or a target BS to switch SO to circuit data during a session; step 2, the source BS and/or the target BS negotiates with a mobile switching subsystem about switching SO to circuit data, and determines the bearer format parameters of the session through the negotiation; step 3, the source BS and/or the target BS makes a secondary service negotiation with the mobile station after the negotiation with the mobile switching subsystem succeeds; and step 4, after the negotiation with the mobile station succeeds, the source BS and/or the target BS conducts user interface service layer encapsulation on the circuit data according to a certain load format, and then transmits the encapsulated Real Time Transfer Protocol packets to the other BS. | 2010-12-16 |
20100316024 | SUPERPOSITION CODING IN A WIRELESS COMMUNICATION SYSTEM - The present patent application comprises a method and apparatus to compile a superposition coded packet by compiling user candidates for superposition coding, ranking the user candidates based on a result of an evaluation function, selecting a deserving user candidate from among the user candidates, and compiling a superposition coded packet by adding other user data packets to a packet of the deserving user data packet, wherein the data packets for the user candidates may conform to a plurality of different formats and wireless communication standards. | 2010-12-16 |
20100316025 | Sharing a Frequency Band Between Different Radio Communications Protocols - A method including enabling a first mode of a first radio communications protocol using a shared radio frequency band and having a first defined schedule for communication in the shared radio frequency band; enabling a second mode of a second radio communications protocol using the shared radio frequency band and having a second defined schedule for communication in the shared radio frequency band; and enabling the first mode and disabling the second mode at a conflict time at which the first defined schedule and the second defined schedule coincide. | 2010-12-16 |
20100316026 | METHOD OF MANAGING CARRIERS IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for managing carriers allocated to a mobile station in a broadband wireless access system supporting multiple carriers, and an apparatus for use in the method are disclosed. A carrier management method for allowing a mobile station to perform carrier management in a broadband wireless access system supporting multiple carriers includes receiving a first message, which includes activation information indicating activation of at least one target carrier from among one or more second carriers allocated through a first carrier, from a base station, and transmitting a second message, which informs the base station of readiness or non-readiness of the at least one target carrier according to a result of the activation, to the base station. The activation information includes information indicating an activation time point, and the transmitting of the second message is performed at a specific time indicated by the activation time point information. | 2010-12-16 |
20100316027 | METHOD AND APPARATUS FOR DYNAMIC AND DUAL ANTENNA BLUETOOTH (BT)/WLAN COEXISTENCE - An apparatus and method are disclosed for effectively and efficiently arbitrating concurrent usage between WLAN and Bluetooth access technologies for co-located wireless devices. A state level arbiter determines state and relevant parameters of a WLAN module and of a Bluetooth module of a wireless transceiver unit. The state level arbiter uses the state and relevant parameters to determine which access technology (WLAN or Bluetooth) or combination of the access technologies (WLAN or Bluetooth) will provide the best concurrent performance for wireless transmissions at a given time for specific Bluetooth states and WLAN states. | 2010-12-16 |
20100316028 | Systems and Methods for Dynamic Aggregation of Bandwidth - Systems and methods are presented for the dynamic aggregation of communications network bandwidth. Communication devices are bonded in a community in which the communication resources of a bonded device can be used to transfer data on behalf of another bonded device. In an exemplary embodiment, communication devices are bonded wirelessly to share wireless wide area network communication channels. Bandwidth aggregation is performed dynamically based on user communication requirements and the current states of the bonded communication devices. Methods are presented by which communication devices can be automatically bonded when a predetermined bonding condition is satisfied. The methods and systems of the invention optimize utilization of communication resources in a cost-effective manner that provides a user high quality service as well as location mobility. | 2010-12-16 |
20100316029 | ROAMING BROKER AND NETWORK INTERWORKING CONTROL GATEWAY - An apparatus provides roaming broker functionality. The apparatus comprises a negotiation controller for negotiating a roaming agreement between an originating network and a destination network. The apparatus further comprises a rule generator generating rules according to a negotiated roaming agreement, and a configuration unit configured to implement configuration settings according to respective rules generated by the rule generator. | 2010-12-16 |
20100316030 | TECHNIQUES FOR SUPPORTING MULTIPLE PROTOCOLS IN WIRELESS NETWORKS - An embodiment of the present invention provides a method of supporting multiple protocols in a wireless network operating according to an Institute for Electronic and Electrical Engineers IEEE) 802.16 standard, comprising adding a new convergence sub layer (CS) type in which an extra field is added to an 802.16 service data unit (SDU) to indicate which higher layer protocol is carried in a 802.16 SDU payload. | 2010-12-16 |
20100316031 | COMMUNICATION TERMINAL AND CONTROL METHOD - Communication terminal | 2010-12-16 |
20100316032 | Service Period Recovery wIth Source/Destination help - SP recovery between communications of a source and destination apart from the PCP can occur by performing, prior to the initial frame response between a source and a destination, a back-off procedure using back-off parameters for SP recovery when the initiator of a SP cannot receive a responding frame from the destination and detects the communication medium being idle. In alternative embodiments the source and/or destination can send a notification frame to the PCP informing the PCP of transmission failure. When the PCP determines the communication medium to be idle, the PCP truncates and reallocates the remaining portion of the SP. | 2010-12-16 |
20100316033 | ENHANCEMENTS FOR OFF-THE-SHELF 802.11 COMPONENTS - Methods and systems are disclosed for deploying mobile ad hoc networks using commercial off-the-shelf components conforming to the IEEE 802.11-2007 networking standard. In particular, a physical layer (which may be implemented in hardware, software, or a combination of these) is provided at or below the MAC layer that adapts operation of standard chipsets to an enhanced ad hoc wireless networking protocol such as the MBRI protocol described herein. This may include suppressing or disabling certain operations of the 802.11 chipset, and adding other functions to support augmenting functionality of the protocol stack to provide various higher-level network functions (e.g., network, routing, and other functions) of an enhanced protocol within or through the physical layer. In one aspect, there is disclosed herein a method for operating a network device that includes disabling at least one function of an 802.11 chipset and providing at least one additional network function through a physical layer application programming interface for the 802.11 chipset. | 2010-12-16 |
20100316034 | METHOD FOR ACCESSING A SERVICE UNAVAILABLE THROUGH A NETWORK CELL - A method performed by user equipment (UE) includes receiving a request to access a service unavailable through a first network cell associated with the UE, and receiving a message from an access device associated with the first network cell, wherein the message identifies a plurality of second network cells providing the service. | 2010-12-16 |
20100316035 | POSITION INFORMATION MANAGEMENT DEVICE, NETWORK EDGE DEVICE, AND MOBILE TERMINAL - Disclosed is a technique that, in a network-based local mobility management method, reduces the load of a network node for managing position information of a mobile terminal and achieves a high scalability with respect to the number of mobile terminals. According to the technique, a LMA (Local Mobility Anchor) ( | 2010-12-16 |
20100316036 | WIRELESS NETWORK ROAMING TIMER METHOD AND APPARATUS - A mobile station in a wireless network includes a roaming timer. The roaming timer is set based on various criteria, and when the roaming timer expires, an attempt to roam is performed. | 2010-12-16 |
20100316037 | METHOD OF SECURING NETWORK ACCESS RADIO SYSTEMS - A method of providing security for network access radio systems and associated access radio security systems used with the systems. The method includes connecting an access radio having a radio link to a network; communicating between the access radio and a computer over the network using a ping application having ping commands and unique encrypted codes; and enabling operation of the access radio when the access radio is receiving ping commands. Typically, the access radio and the computer are nodes on the network and the network is a local area network (LAN). The ping application sends packets of information from the computer to the access radio and receives a response from the access radio. The ping application must be functioning (i.e., sending and receiving commands between the computer and the access radio) to enable the access radio to communicate via the radio link with a remote network. | 2010-12-16 |
20100316038 | CODE SYNCHRONIZATION CIRCUIT, DELAY TIME MEASUREMENT DEVICE, CONTROL METHOD, CONTROL PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM - A code synchronization circuit for a delay time measurement device used in a low C/N environment is provided. The code synchronization circuit is capable of high precision timing phase measurement and stable operation against variations in the reception level. For these purposes, the code synchronization circuit includes: a numeric control frequency variable oscillation section ( | 2010-12-16 |
20100316039 | APPARATUS AND METHOD FOR GENERATING RANGING CODE - An apparatus for generating a ranging code extracts a ranging code in each ranging mode, using a ranging code table storing one period data in bytes of the PN code according to a reference UL PermBase number, and an offset table that stores byte offsets for the start positions of the PN codes of the reference UL PermBase number and the other plurality of UL PermBase numbers and bit offsets in the byte including the start positions, on the basis of the PN code according to the reference UL PermBase number. | 2010-12-16 |
20100316040 | SPECTRAL SHAPING TO REDUCE PEAK-TO-AVERAGE RATIO IN WIRELESS COMMUNICATION - Techniques for performing spectral shaping to achieve a desired peak-to-average ratio (PAR) are described. Spectral shaping may be selectively performed for a single-carrier frequency division multiplexing (SC-FDM) signal based on one or more criteria, e.g., in transmit power limited conditions and/or if a modulation scheme with lower PAR is unavailable. At least one parameter of a window function or spectral shaping filter may also be adjusted based on at least one characteristic of the SC-FDM signal. For example, the roll-off of the spectral shaping filter may be adjusted based on the modulation scheme and/or the number of subcarriers used for the SC-FDM signal. A transmitter may perform spectral shaping on modulation symbols, if enabled, to obtain spectrally shaped symbols. Spectral shaping may be performed in the frequency domain either within an allocated bandwidth or with bandwidth expansion. The SC-FDM signal may be generated based on the spectrally shaped symbols. | 2010-12-16 |
20100316041 | SIGNAL GENERATION DEVICE AND SIGNAL GENERATION METHOD AND PROGRAM THEREOF IN WIRELESS TRANSMISSION SYSTEM - In a signal generation device in a wires transmission system, a calculation amount is greatly reduced compared with a convention FFT Pre-Processing method which performs oversampling, and peak power is reduced to substantially the same extent as in the convention method. A transmitter | 2010-12-16 |
20100316042 | RADIO COMMUNICATION DEVICE FOR PERFORMING COMMUNICATION USING THE OFDMA SYSTEM - A radio communication device performing radio communication using OFDMA system includes: a SMI weight deriving unit ( | 2010-12-16 |
20100316043 | RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION DEVICE - Provided is a radio communication method which can reduce the power consumption as compared to the conventional technique while realizing coexistence of a plurality of radio communication methods and can perform synchronization with a super frame of other radio communication device. The super frame has life confirmation slots ( | 2010-12-16 |
20100316044 | TIMING SYNCHRONIZATION AND CHANNEL ESTIMATION AT A TRANSITION BETWEEN LOCAL AND WIDE AREA WAVEFORMS USING A DESIGNATED TDM PILOT - Systems and methods are provided for channel estimation and timing synchronization in a wireless network. In an embodiment, a method is provided for time synchronization at a wireless receiver. The method includes decoding at least one TDM pilot symbol located at a transition between wide and local waveforms and processing the TDM pilot symbol to perform time synchronization for a wireless receiver. Methods for channel estimation at a wireless receiver are also provided. This includes decoding at least one TDM pilot symbol and receiving the TDM pilot symbol from an OFDM broadcast to facilitate channel estimation for a wireless receiver. | 2010-12-16 |
20100316045 | Prioritising Messages in a Communications Network - A method and communications network node for allocating a priority level to an Internet Protocol (IP) packet containing all or part of a Session Initiation Protocol (SIP) message. One or more characteristics of the SIP message are determined, and the characteristics are mapped to a Differentiated Services Code Point (DSCP) value. The DSCP value is then applied to the IP packet header. | 2010-12-16 |
20100316046 | Method for performing gate coordination on a per-call basis - Network resources for a call between a calling party and a called party are allocated. The network resources for the call are reserved based on a reservation request. The network resources are reserved before any one network resource from the reserved network resources is committed. The reserved network resources for the call are committed when a called party indicates acceptance for the call. | 2010-12-16 |
20100316047 | COMMUNICATION TERMINAL DEVICE, DEVICE FOR DETERMINING POSSIBILITY OF DISCRIMINATING RELATION OF PSEUDONYMOUS-NAME COMMUNICATION IDENTIFIER, COMMUNICATION SYSTEM, COMMUNICATION METHOD AND STORAGE MEDIUM - To determine a relation discrimination possibility of a pseudonymous-name communication identifier so that, in each communication layer, no mismatch occurs between a pseudonymous-name communication identifier whose relation can be discriminated and a pseudonymous-name communication identifier whose relation cannot be discriminated. The Relation discrimination possibility determination means | 2010-12-16 |
20100316048 | DYNAMIC SIP MAX-HOP SETUP FOR IMS - A device forwards in a network, a session setup request from an originating user device toward a destination user device and intercepts a too many hops error message from a network element to the originating user device. The device also automatically sends, in response to the error message, a search request message to determine a correct number of hops from the originating user device to the destination user device and resets a Max-Forwards value for the session setup request based on the determined correct number of hops. The session setup request with the determined correct number of hops may be resent on behalf of the originating device without the too may hops error ever reaching the originating device. | 2010-12-16 |
20100316049 | METHOD AND SYSTEM FOR ENERGY-EFFICIENCY-BASED PACKET CLASSIFICATION - Aspects of a method and system for energy-efficiency-based packet classification are provided. In this regard, a network link for communicating a packet may be selected based, at least in part, on an amount of energy required to communicate the packet over the network link, and based, at least in part, on an energy efficiency class to which the packet is assigned. The energy efficiency class may be determined based on one or more fields of the packet, wherein the fields may comprise one or more of an Ethertype field, a type of service header of an IP datagram, and a field pre-pended or appended to a payload of the packet. In this regard, during or subsequent to generation of the packet, the packet may be marked such that a network path traversed by the generated packet may be determined based on the energy required to communicate the packet over the network path. | 2010-12-16 |
20100316050 | APPLYING ADAPTIVE THRESHOLDS TO MULTCAST STREAMS WITHIN COMPUTER NETWORKS - In general, techniques are described for applying adaptive thresholds to multicast streams within computer networks. For example, an access node may implement the techniques to facilitate efficient delivery of multicast streams. The access node comprises an interface that couples to a subscriber network having a subscriber device. The access node also includes a control unit that determines a multicast stream count reflecting current delivery of multicast streams to the subscriber network and a threshold value based on historical multicast stream counts delivered to the subscriber. The interface receives a message requesting to join a multicast group in accordance with a multicast management protocol. In response to this message, the control unit determines a projected stream count based on the above current multicast count. The control unit then compares the projected stream count to the threshold value, and admits the subscriber device to the multicast group based on the comparison. | 2010-12-16 |
20100316051 | PACKET PROCESSING USING BRAIDED TRIES - Packets are processed (e.g., routed or classified) in accordance with a braided trie, which represents the combination of two or more different original tries (e.g., representing different forwarding/classification tables). The different tries are combined by twisting the mappings for specific trie nodes to make the shapes of the different tries more similar. Each node in the braided trie contains a braiding bit for at least one original trie indicating the mapping for that trie's node. Trie braiding can significantly reduce the number of nodes used to represent the different original tries, thereby reducing memory usage and improving scalability. Braided tries can be used for such applications as virtual routers and packet classification in which different forwarding/classification tables are represented by a single braided trie stored in shared memory. | 2010-12-16 |
20100316052 | RECURSIVE PACKET HEADER PROCESSING - According to one general aspect, an apparatus may include an ingress port, a header cache, and a plurality of ingress recursion engines. In some embodiments, the ingress port may be configured to receive a packet that comprises a data portion and a header portion, wherein the header portion comprises at least one header. In various embodiments, the header cache may be configured to store at least a part of the header portion of the packet. In one embodiment, the plurality of ingress recursion engines may be configured to recursively process the header portion, from outer-most header to inner-most header, until an adjacency value for the packet is determined. In some embodiments, each ingress recursion engine may be configured to process a header from the header portion. | 2010-12-16 |
20100316053 | ADDRESS LEARNING METHOD AND ADDRESS LEARNING SWITCH - A switch operating in a multistage switch network is provided. The switch includes a plurality of ports, a first processor for processing a source address and a destination address of a packet received by the plurality of ports, and a second processor for including a memory storing data of the packet, and for outputting, under the control of the first processor, the data of the packet stored on the memory, wherein the first processor calculates a hash value of the source addresses of the packet in accordance with a specific hash function, identifies a output port connected to a switch that corresponds to the hash value and is to learn the source address, and causes the second processor to output the data of the packet to the output port. | 2010-12-16 |
20100316054 | METHOD, SYSTEM AND APPARATUS FOR SENDING MAPPING INFORMATION - A method, system, and apparatus for sending mapping information are disclosed. The method includes the following steps: An endpoint searches a mapping server to obtain Egress Tunnel Router (ETR) information used for forwarding a data packet sent by the endpoint in a transit network; and the endpoint adds the ETR information to the data packet and sends the data packet to an Ingress Tunnel Router (ITR). With the present invention, the ITR does not need to search for Routing Locator (RLOC) information or Autonomous System Number (AS No.) information, the pressure of searching for mapping information on the ITR is relieved, the problems such as forwarding performance deterioration and packet loss caused by ITR overload are avoided, and the risks of Distributed Denial of Service (DDOS) attacks are reduced. | 2010-12-16 |
20100316055 | Two-Layer Switch Apparatus Avoiding First Layer Inter-Switch Traffic In Steering Packets Through The Apparatus - Link-level data communications implemented in switching apparatus comprising modular switches disposed within a modular computer cabinet that includes modular computer systems; the switching apparatus configured as two layers of switches, the first layer switches coupled to one another for communications by inter-switch links, each second layer switch coupled for communications to the modular computer systems; all the switches stacked by a stacking protocol that shares administrative configuration information among the switches through the inter-switch links and presents all the switches as a single logical switch; the switching apparatus including ports coupling the apparatus to networks and to service applications and terminating applications on the modular computer systems; and sending the packet from network to modular computer system to which the packet is directed, or from modular computer system to network to which the packet is directed, the packet traversing none of the inter-switch links among the first layer switches. | 2010-12-16 |
20100316056 | TECHNIQUES FOR ROUTING DATA BETWEEN NETWORK AREAS - Techniques for routing data between network area are disclosed, In one particular exemplary embodiment, the techniques may be realized as a method for routing data between layer 2 network areas of backbone bridges comprising the steps of receiving data at a network element containing an internally terminated Network to Network Interface (NNI) for a plurality of network areas, identifying a destination address associated with the data, determining a network area of the plurality of network areas associated with the data, and performing one or more data flow treatments associated with the data using the internally terminated Network to Network Interface (NNI). | 2010-12-16 |
20100316057 | Relay device suppressing frame flooding - In a relay device, a first memory stores correspondence information representing a correspondence relationship between a node and a port. A second memory stores information by which a port to suppress flooding of a frame is distinguishable. A relay part limits a port, which floods a frame addressed to a node of which information is not stored in the first memory, based on the information stored in the second memory. | 2010-12-16 |
20100316058 | SYSTEM AND METHOD OF DEMULTIPLEXING PROVIDER BACKBONE BRIDGING TRAFFIC ENGINEERING INSTANCES - A system and method of demultiplexing Provider Backbone Bridging Traffic Engineering (PBB-TE) service instances. The method is used when monitoring service instances between a first bridge port and a second bridge port by exchanging CFM frames over each service instance. The CFM frame is received by the second bridge port where the complete ESP-3-tuple is demultiplexed. The CCM frames may be demultiplexed by a Full Traffic Engineering Service Instance Multiplex Entity which demultiplexes both the source address value and destination address value of the CCM frames. | 2010-12-16 |
20100316059 | METHOD, APPARATUS AND SYSTEM FOR PROCESSING TONE IN MEDIA STREAM - A method, apparatus and system for processing a tone in a media stream are disclosed in the present inventions. The method includes: receiving, by a media gateway (MG), a command issued by a media gateway controller (MGC) which carries a property parameter for controlling removal of the tone in the media stream; and removing or reserving, by the MG, the tone in the media stream according to the property parameter. | 2010-12-16 |
20100316060 | INTERCONNECTING MULTIPLE MPLS NETWORKS - A system may include a first customer edge (CE) router that is included in a customer network and is connected to a first provider edge (PE) router in a first multi-protocol label switch (MPLS) network, the first CE router configured to communicate with the first PE router using an external border gateway protocol (EBGP). The system may also include a second CE router that is included in the customer network and is connected to a second PE router in a second MPLS network. The second CE router may be configured to exchange routing information with the second PE router based on the EBGP and distribute routing information to the first CE router based on an interior gateway protocol (IGP). The system may also include a third CE router that is included in a first local network and is connected to a third PE router in the first MPLS network, the third CE router configured to exchange routing information with the third PE router. | 2010-12-16 |
20100316061 | Configuring a Three-Stage Clos-Network Packet Switch - Examples of are disclosed for configuring one or more routes through a three-stage Clos-network packet switch. | 2010-12-16 |
20100316062 | SCALABLE PACKET-SWITCH - A scalable packet switch possessing a multiport memory, a multiport memory manager, two or more input/output (I/O) ports, and two or more switch engines. Each switch engine is associated with one or more I/O ports, and is adapted to receive inbound packets and transmit outbound packets via the associated I/O ports. Inbound packets are stored in a shared packet buffer. Each switch engine is further adapted to (i) determine (i.e., bridge) the outbound I/O port(s) for received inbound packets by consulting a shared bridging table and (ii) schedule outbound packets for transmission, independently and in parallel with other switch engines. The shared packet buffer and shared bridging table are stored in the multiport memory and shared by all switch engines. The multiport memory manager allocates/de-allocates memory blocks within the multiport memory. | 2010-12-16 |
20100316063 | PRIORITY SERVICE SCHEME - A method includes indicating a state associated with a priority service subscription indicator, indicating a state associated with a priority service activation indicator and receiving an input request for invoking a priority service for a priority communication. The method further includes determining whether a user of a user device is a subscriber of the priority service based on the state associated with the priority service subscription indicator and establishing network resources on which the priority communication is to be transmitted, based on at least one of the state associated with the priority service subscription indicator or the state associated with the priority service activation indicator. | 2010-12-16 |
20100316064 | PCMM APPLICATION MANAGER - A method of assigning network resources between network endpoints includes providing a session initiation request to an application manager. The application manager is logically and physically decoupled from an application server associated with the network endpoints. This request initiates communication between the network endpoints through the set of network resources. The communication employs an application residing on an application server. The method also includes providing a PCMM message from the application manager to a policy server as a result of the session initiation request. The PCMM message includes at least some information, for example QoS information, embedded in the session initiation request. The method further includes selecting, via the policy server, a set of network resources for creating a path connecting the network endpoints. The policy server selects the set of network assets based on the PCMM message, for example to set QoS for the communication between the two endpoints. | 2010-12-16 |
20100316065 | METHOD AND APPARATUS FOR MODULATING THE WIDTH OF A HIGH-SPEED LINK - The described embodiments include a system that modulates the width of a high-speed link. The system includes a transmitter circuit coupled to a high-speed link that includes N serial lanes. During operation, while using a first number of lanes to transmit frames on the high-speed link, the transmitter circuit determines a second number of lanes to be used to transmit frames on the high-speed link based on a bandwidth demand on the high-speed link. The transmitter circuit then sends an indicator of the second number of lanes to a receiver on the high-speed link. Upon receiving an error-free acknowledgment of the indicator from the receiver, starting from a predetermined frame, the transmitter circuit transmits subsequent frames on the high-speed link using the second number of lanes. | 2010-12-16 |
20100316066 | MANAGING VIDEO ADAPTATION ALGORITHMS - Techniques are described for controlling the operation of a dynamic rate adaptation algorithm by modifying control parameters exposed by the dynamic rate adaptation algorithm. In one aspect, an apparatus comprises a rate adaptation module comprising a plurality of control parameters. The rate adaptation module monitors conditions of a network and adjusts a coding rate of a media encoder based on the network conditions and the plurality of control parameters. Each of the plurality of control parameters specifies a threshold value or a timing value that controls a response of the rate adaptation algorithm to the network conditions. The apparatus also comprises a client that receives a value for a first one of the plurality of control parameters and sets the first control parameter to the received value. | 2010-12-16 |
20100316067 | Technique for Accommodating Electronic Components on a Multilayer Signal Routing Device - A technique for delivering and enforcing network quality of service from a head-end to a plurality of outstations is disclosed. In one embodiment, the technique is realized by assigning a transmit duration for each one of the plurality of outstations by the head-end; and assigning a transmit frequency for each one of the plurality of outstations by the head-end; wherein bandwidth for each one of the plurality of outstations is adjusted dynamically at the head-end. In addition, a control message may be received from an outstation indicating extra capacity at the outstation where the extra capacity may be allocated for one or more of burst capacity and best effort traffic. | 2010-12-16 |
20100316068 | Transport Over an Asynchronous XAUI-like Interface - A system and method are provided for transporting digital information via a modified Attachment Unit Interface (MAUI) or XAUI-like interface. At a transmitter, a synchronous serial stream of digital information is accepted. The serial stream is divided into a sequence of segments. The segments are encapsulated, creating a sequence of packets by adding a start character to the beginning of each segment, and adding a terminate character to the end of each segment. Typically, each segment is disinterleaved across m equal-rate lanes, whose combination is effectively equal to the incoming serial stream data rate, with compensation for added encapsulation characters. The added encapsulation characters may include post-start characters added subsequent to the start character, inter-packet characters added subsequent to the termination character, or a combination of post-start and inter-packet characters. | 2010-12-16 |
20100316069 | Network Clock Synchronization Floating Window and Window Delineation - A network component comprising at least one processor configured to implement a method comprising initiating a synchronization window, and promoting the transmission of a frame comprising a control symbol, wherein the control symbol delineates a beginning of the frame, and wherein the control symbol is offset from the beginning of the synchronization window. Also disclosed is a system comprising an upstream node in communication with a downstream node, wherein the upstream node transmits a data stream comprising a plurality of frames to the downstream node, wherein the data stream is organized into a plurality of synchronization windows, and wherein the frames float within the synchronization windows. Included is a method comprising transmitting an Ethernet data stream comprising an Ethernet control symbol, wherein the Ethernet control symbol is transmitted within a synchronization window and delineates a start of a packet within the synchronization window. | 2010-12-16 |
20100316070 | Asymmetrically perturbed optical fibers for mode transformers - Utilization efficiency of cladding pump light in a cladding pumped optical device is improved by converting higher order modes travelling in the cladding to lower order modes that enter the core region and participate more effectively in the energy exchange process. The mode conversion is achieved by asymmetric perturbations in the optical fiber. The perturbations are preferably produced by making the optical fiber in the gain section of the device cylindrically asymmetric. The asymmetric perturbations can be chosen so that they have negligible effect on the lower mode signal light in the core of the optical fiber. | 2010-12-16 |
20100316071 | LASER DEVICE AND METHOD - A laser beam combining and power scaling device and method. A first highly reflective mirror residing perpendicular to the first optical axis reflecting radiation emitted from the first laser head. A first Q-switch in alignment with the first optical axis interposed between the first highly reflective mirror and the first laser head. A second highly reflective mirror residing perpendicular to the second optical axis reflecting radiation emitted from the second laser head. The second Q-switch in alignment with the second optical axis is interposed between the second highly reflective mirror and the first laser head. A third optical axis is coincident with the first optical axis. A third highly reflective mirror residing perpendicular to the third optical axis in alignment therewith. The third optical axis may include a third diode pumped laser head and Q-switch. A beam splitter resides at the intersection of the axes. | 2010-12-16 |
20100316072 | METHODS FOR STABILIZING THE OUTPUT OF A PULSED LASER SYSTEM HAVING PULSE SHAPING CAPABILITIES - Methods stabilize the output of a pulsed laser system using pulse shaping capabilities. In some embodiments, transient effects following a transition between a QCW regime and a pulse shaping regime are mitigated by ensuring that the average QCW optical power substantially corresponds to the average pulsed optical power outputted in a steady-state operation of the pulsed laser system in the pulse shaping regime. The QCW signal or the pulse shaping signal may be adapted for this purpose. In other embodiments, transient effects associated with non-process pulses emitted between series of consecutive process pulses are mitigated through the proper use of sequential pulse shaping. | 2010-12-16 |
20100316073 | OPTICALLY PUMPED SOLID-STATE LASER WITH CO-DOPED GAIN MEDIUM - The present invention relates to a solid-state laser comprising a gain medium ( | 2010-12-16 |
20100316074 | SEMICONDUCTOR LASER - A semiconductor laser includes a semiconductor laser region and a wavelength-monitoring region. The semiconductor laser region includes a first optical waveguide that includes a gain waveguide, the first optical waveguide having one end and another end opposite the one end. The wavelength-monitoring region includes a second optical waveguide that is optically coupled to the first optical waveguide with the one end therebetween, and a photodiode structure that is optically coupled to the second optical waveguide. In the wavelength-monitoring region, the second optical waveguide is branched into three or more optical waveguides, and at least two optical waveguides among the three or more optical waveguides form first ring resonators having optical path lengths different from each other. | 2010-12-16 |
20100316075 | Optical Device Structure Using GaN Substrates for Laser Applications - An optical device includes a gallium nitride substrate member having an m-plane nonpolar crystalline surface region characterized by an orientation of about −2 degrees to about 2 degrees towards (000-1) and less than about 0.5 degrees towards (11-20). The device also has a laser stripe region formed overlying a portion of the m-plane nonpolar crystalline orientation surface region. A first cleaved c-face facet is provided on one end of the laser stripe region, and a second cleaved c-face facet is provided on the other end of the laser stripe region. | 2010-12-16 |
20100316076 | SURFACE EMITTING PHOTONIC DEVICE - A surface emitting photonic device including a substrate; and a waveguide structure on the substrate. The waveguide structure includes an active region along its longitudinal axis and the active region is for generating light. The waveguide structure also has a trench formed therein transverse to the active region and defining a first wall forming an angled facet at one end of the active region, the first wall having a normal that is at a non-parallel angle relative to the longitudinal axis of the waveguide structure. The trench also defines a second wall located opposite the first wall. | 2010-12-16 |
20100316077 | PATTERNED LIGHT EMITTING DEVICES - Light-emitting devices, and related components, systems and methods are disclosed. A light-emitting device can include a multi-layer stack of materials that includes a light-generating region and a first layer supported by the light-generating region. During use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer. The surface of the first layer can have a dielectric function that varies spatially as a pattern and at least about 45% of a total amount of light generated by the light-generating region can emerge from the light-emitting device emerges via the surface of the light-emitting device. | 2010-12-16 |
20100316078 | SURFACE PLASMON GENERATING APPARATUS AND METHOD FOR MAKING THE SAME - A surface plasmon-generating apparatus includes an active layer including an n-type region formed on one side and a p-type region formed on the other side, the n-type region and the p-type region being in contact with each other to form a pn junction therebetween; a first barrier layer in contact with a first surface of the active layer; a second barrier layer in contact with a second surface of the active layer, the second surface being opposite the first surface; and a metal body disposed above the pn junction of the active layer with the second barrier layer and an insulating layer therebetween. | 2010-12-16 |
20100316079 | SUB-WAVELENGTH GRATING INTEGRATED VCSEL - A vertical cavity surface emitting laser (VCSEL) is described using a sub-wavelength grating (SWG) structure that has a very broad reflection spectrum and very high reflectivity. The grating comprises segments of high and low refractive index materials with an index differential between the high and low index materials. By way of example, a SWG reflective structure is disposed over a low index cavity region and above another reflective layer (either SWG or DBR). In one embodiment, the SWG structure is movable, such as according to MEMS techniques, in relation to the opposing reflector to provide wavelength selective tuning. The SWG-VCSEL design is scalable to form the optical cavities for a range of SWG-VCSELs at different wavelengths, and wavelength ranges. | 2010-12-16 |
20100316080 | SEMICONDUCTOR OPTICAL ELEMENT - A semiconductor optical element includes a p-type InP substrate doped with Zn; and a diffusion blocking layer doped with Ru, a p-type InP cladding layer, an active layer, and an n-type InP cladding layer sequentially arranged on the p-type InP substrate. | 2010-12-16 |
20100316081 | VERTICAL-CAVITY SURFACE-EMITTING LASER (VCSEL) DEVICE AND THE METHOD OF MANUFACTURING THEREOF - A Vertical-Cavity Surface-Emitting Laser (VCSEL) device includes a substrate, a first semiconductor multi-layer film of a first conductive type formed on the substrate, an active layer, a second semiconductor multi-layer film of a second conductive type, an electrode pad electrically coupled to the second semiconductor multi-layer film, and a post structure formed on the substrate, the post structure comprising a light emitter, the post structure being continuously surrounded by a first groove, and a second groove being continuously formed outside of the first groove with respect to the post structure. | 2010-12-16 |
20100316082 | NITRIDE SEMICONDUCTOR LASER CHIP - A nitride semiconductor laser chip is provided that offers sufficient reliability even at high output. The nitride semiconductor laser chip has a nitride semiconductor layer formed on a substrate, a resonator facet formed on the nitride semiconductor layer, and a coating film formed on the resonator facet and containing Ar. The coating film has, in a region contiguous with the resonator facet and in the vicinity thereof, a low-Ar region with a low Ar content and, on the side of this low-Ar region opposite from the resonator facet, a high-Ar region with a higher Ar content than the low-Ar region. | 2010-12-16 |
20100316083 | SUB-WAVELENGTH GRATING INTEGRATED VCSEL - A vertical cavity surface emitting laser (VCSEL) is described using a sub-wavelength grating (SWG) structure that has a very broad reflection spectrum and very high reflectivity. The grating comprises segments of high and low refractive index materials with an index differential between the high and low index materials. By way of example, a SWG reflective structure is disposed over a low index cavity region and above another reflective layer (either SWG or DBR). In one embodiment, the SWG structure is movable, such as according to MEMS techniques, in relation to the opposing reflector to provide wavelength selective tuning. The SWG-VCSEL design is scalable to form the optical cavities for a range of SWG-VCSELs at different wavelengths, and wavelength ranges. | 2010-12-16 |
20100316084 | ARRANGEMENT FOR RF POWER DELIVERY TO A GAS DISCHARGE LASER WITH CASCADED TRANSMISSION LINE SECTIONS - RF power is transmitted to a CO | 2010-12-16 |
20100316085 | HIGH POWER SOLID-STATE OPTICAL AMPLIFICATION PROCESS AND SYSTEM - A high power solid-state non-regenerative optical amplification system ( | 2010-12-16 |
20100316086 | Online calibration of a temperature measurement point - A system for measuring temperature includes a thermowell, a primary temperature sensor, a reference sensor, and a transmitter. The thermowell has a measurement instrument connection and a side port. The primary temperature sensor extends into the thermowell through the measurement instrument connection, and the reference sensor extends into the thermowell through the side port. The transmitter is connected to each of the primary temperature sensor and the reference sensor. The transmitter has circuitry for measuring temperature based upon signals received from the primary temperature sensor and for concurrently calibrating based upon signals received from the reference sensor. | 2010-12-16 |
20100316087 | CALORIMETER WITH A DIGESTION CONTAINER AND WITH A WATER JACKET - A calorimeter ( | 2010-12-16 |
20100316088 | Thermal Sensing Fiber Devices - There is provided a thermal sensing fiber grid, including a plurality of rows and columns of thermal sensing fibers, each of which includes a semiconducting element that has a fiber length and that is characterized by a bandgap energy corresponding to a selected operational temperature range of the fiber in which there can be produced a change in thermally-excited electronic charge carrier population in the semiconducting element in response to a temperature change in the selected temperature range. There is included at least one pair of conducting electrodes in contact with the semiconducting element along the fiber length, and an insulator along the fiber length. An electronic circuit is provided for and connected to each thermal sensing fiber for producing an indication of thermal sensing fiber grid coordinates of a change in ambient temperature. | 2010-12-16 |
20100316089 | FREQUENCY SELECTION METHOD TO MITIGATE IN-BAND INTERFERENCE FROM INTER-MODULATION SPUR OF THE COLLOCATED RADIO TRANSMITTER - A radio transmitter select its operating frequency based on the frequency characteristics of a collocated receiver and clock harmonics. | 2010-12-16 |
20100316090 | DISCRETE TIME CHAOS DITHERING - The invention concerns a chaotic communications system, method and apparatus having a transmitter configured to spread an input data signal over a wide intermediate frequency band, by digitally generating a first chaotic sequence of values to form a spreading code. The spreading code is then used to form a digital IF chaotic spread spectrum signal having a uniform sampling interval. The duration of the sampling interval is then selectively varied in accordance with a first pseudo-random sequence, thereby introducing a known dither in the digital IF chaotic spread spectrum signal. After introducing the known dither, the digital IF chaotic spread spectrum signal is converted to an analog RF spread spectrum signal at a conversion rate that exceeds the sampling interval of the chaotic spread spectrum signal. A corresponding receiver recovers the input data from the spread transmitted signal. This spreading may utilize a chaotic sequence employing discrete time chaos dithering. | 2010-12-16 |
20100316091 | Transmitting and Receiving Schemes for Multiuser Single-Carrier Space Time Spreading with Frequency Domain Equalization - Examples are disclosed for transmitting and receiving schemes for multiuser single-carrier space time spreading (STS) with frequency domain equalization. | 2010-12-16 |
20100316092 | SYSTEM AND METHOD FOR DETECTING SPREAD SPECTRUM SIGNALS IN A WIRELESS ENVIRONMENT - An apparatus for detecting a spread spectrum signal in a wireless signal environment includes at least one antenna for receiving spread spectrum signals, such as UMTS signals, from a signal source in the wireless signal environment. In one embodiment, a detection circuit is configured for correlating a code in signal received by the apparatus with a set of possible codes for spread spectrum signals in order to detect the existence of a spread spectrum signal. In another embodiment, a detection circuit is configured for obtaining at least one reference frame of data from a received signal. The detection circuit is further operable for correlating a segment of the reference frame with a repeated segment of at least one subsequent frame of data in order to detect the existence of a spread spectrum signal. A repeater might incorporate such an apparatus wherein the variable gain of the repeater is adjusted based upon the correlation and the detection of a spread spectrum signal. | 2010-12-16 |
20100316093 | METHOD FOR DETECTING SIGNALS BASED ON DESPREADING AND METHOD FOR TRANSMITTING SIGNALS FOR THE SAME - A method for detecting signals based on despreading and a signal transmitting method for the same are disclosed. Signals are spread according to the size of at least one spreading band, which is determined in consideration of a correlation degree of a frequency band in a communication system. A reception side which receives the signals detects the signals after despreading with respect to signals which are spread in a frequency band having a correlation degree equal to or greater than a predetermined level as a spreading band, among the reception signals. Thus, the dimension of the detected signals can be decreased. | 2010-12-16 |
20100316094 | FLEXIBLE AND IN-BAND SIGNALING FOR NESTED PREAMBLE - A multi input multi output (MIMO) receiver is disclosed for transmitting and receiving packets having a preamble format of a packet of information and having a short training sequence (STS), a long training sequence (LTS) and signal (SIG) for training receivers, in accordance with an embodiment of the present invention. The packets having a preamble format for allowing data to be piggy-backed, e.g. transmitted and received using the physical layer rather than the transport layer of networking layers. | 2010-12-16 |
20100316095 | SYSTEMS, METHODS, AND APPARATUS FOR JAMMER REJECTION - A method according to an embodiment obtains a list of peaks for each of a number of frequency hypotheses. Each peak has an energy result and corresponds to a code phase hypothesis. Embodiments include methods and apparatus that may be used in identifying a location of a signal (such as a GPS signal) in a two-dimensional search space. Location information may be further applied to operations such as signal acquisition, signal tracking, position location of a receiver, and timing operations such as the synchronization of one or more other processes. | 2010-12-16 |
20100316096 | METHOD AND APPARATUS FOR SYNCHRONOUS HARQ OPERATION AND INTERFERENCE AVOIDANCE - A method and apparatus for avoiding a collision. A collision may be avoided by allocating a first set of subframes to a backhaul link transmission, and allocating a second set of subframes to an access link transmission. In one example, the second set of subframes may be a non-overlapping set of subframes with respect to the first set of subframes. In a second embodiment, a collision may be avoided by receiving a data transmission from an evolved Node-B (eNB) and transmitting an uplink (UL) grant to a wireless transmit/receive unit (WTRU) and a first acknowledgement (ACK) to the eNB. The transmission may be in response to the received data transmission. The RN may avoid a collision by further transmitting an automatic ACK to the WTRU and transmitting a second UL grant to the WTRU. In a third embodiment, a collision between an access link transmission and a backhaul link transmission may be avoided by detecting a collision and determining an interface priority based on a collision occurrence type. | 2010-12-16 |
20100316097 | JOINT ANALOG NETWORK CODING AND RELAY METHOD, BASE STATION AND USER EQUIPMENT - The present invention provides a joint analog network coding and relay method, a reception method, a base station, and a user equipment for use in a cellular network with a wireless relay. Said relay method comprises steps of: receiving information signals from a plurality of base stations eNB; sampling and ADC the received signals; analog network coding the analog signal levels carrying the information signals from the plurality of eNBs; forwarding symbols after being analog network coded; and receiving the forwarded symbols and converting the symbols into the information signals. Wireless relay joint with analog network coding is a low-cost, low-complexity solution which could improve the service transmission performance when UE is at the cell edge, and increase the cell coverage. | 2010-12-16 |
20100316098 | APPARATUS AND METHOD FOR DYNAMIC SCALING OF ADC SAMPLING RATE TO AVOID RECEIVER INTERFERENCE - A method and apparatus for avoiding receiver interference is described herein. One or more potential interferers are determined and the frequency associated with the interferers is also determined A desired sampling frequency for the receiver is calculated to avoid the potential interferers. | 2010-12-16 |
20100316099 | INFORMATION PROCESSING APPARATUS AND MODE SWITCHING METHOD - Provided is an information processing apparatus which includes a first-module including a first narrow-band communicator for performing narrow band communication with a second-module, a first broadband-communicator for performing broadband communication with the second-module, and a first controller for controlling an operation state of the first broadband-communicator according to an operation mode, and a second-module including a second narrow-band communicator for performing narrow-band communication with the first-module, a second broadband-communicator for performing broadband communication with the first-module, and a second controller for controlling an operation state of the second broadband-communicator according to an operation mode. The first controller places the first broadband-communicator in an operation state in a first mode, and places the first broadband-communicator in a standby state in a second mode. The second controller places the second broadband-communicator in an operation state in the first mode, and places the second broadband-communicator in a standby state in the second mode. | 2010-12-16 |
20100316100 | Method and Device to Transmit a Busy Medium Signal to Another Device - The present invention concerns a device comprising a medium access control module for performing functions of a medium access control sublayer, noted MAC module, the device comprising a MAC interface module connected to the MAC module, the MAC interface module being adapted to connect in a first mode with a connector to a second MAC interface module or in a second mode with a connector to a physical interface module, the second MAC interface module being located in a second device comprising a MAC module connected to the second MAC interface module. In the first mode, the device comprises means for communicating in a half-duplex manner with the second device, and means for sending a medium busy signal to the second device. | 2010-12-16 |
20100316101 | CROSS CONNECT BLOCK - A cross connect block for a telecommunications system, including a plurality of insulation displacement contact slots arranged in two rows along a first side of the block; another plurality of insulation displacement contact slots arranged in two rows along a second side of the block; and a plurality of contacts, each contact of said contacts including a first insulation displacement contact, arranged for engagement with an insulated conductor seated in one of said slots of the first side of the block, in electrical communication with a second insulation displacement contact, arranged for engagement with an insulated conductor seated in a corresponding one of said slots of the second side of the block, wherein contacts arranged in one of said rows of the first side of the block are electrically isolated from corresponding contacts arranged in another of said rows of the first side of the block. | 2010-12-16 |
20100316102 | Method and apparatus for clock recovery in XDSL transceivers - A multi-tone transceiver including: a transform component, a tone selector, an error detector, an aggregator and an oscillator. The transform component transforms received communications from the time domain to the frequency domain. The tone selector selects a sub-set of the received tones which exhibit an elevated signal-to-noise ratio (SNR) as a clock recovery tone set (CRTS) and drops and add tones to the CRTS as required by changes in the SNR of the individual tones. The error detector detects phase errors in each received tone of the CRTS. The aggregator calculates an average aggregate phase error from all tones in the CRTS. The oscillator controls clocking of the transceiver. The oscillator is responsive to the average aggregate phase error to adjust a clock phase in a direction which reduces a phase error with a clock on the opposing transceiver. | 2010-12-16 |
20100316103 | POWER SAVING IN A COMMUNICATION DEVICE - A communication device includes an application data interface, a first communication layer and a physical media interface. The first communication layer includes a first entity configured to process application data and a second entity configured to process operations, administrations and maintenance data. The communication device further includes a switching device. In a first power mode, the switching device couples the application data interface to the first entity of the first communication layer. In a second power mode, the switching device couples the application data interface to the second entity of the first communication layer. | 2010-12-16 |
20100316104 | WIDEBAND CABLE SYSTEM - A wideband cable modem system increases available bandwidth of a single channel by encoding a data stream into wideband packets. The wideband packets are associated with a logical wideband channel that extends over multiple physical downstream cable channels. | 2010-12-16 |
20100316105 | APPARATUS FOR MEASURING JITTER TRANSFER CHARACTERISTIC - An apparatus for rapidly measuring jitter transfer characteristics is provided. A modulation signal generator generates a modulation signal M including a plurality of sinusoidal components having known amplitudes m | 2010-12-16 |
20100316106 | APPARATUS AND METHOD FOR DETERMINING AND REPRESENTING A SYNCHRONIZATION STATUS - A device and method for determining and displaying on a display element the status of at least one synchronization implemented in an electronic measuring instrument or a telecommunications device is provided. The device includes several functional units provided within the electronic measuring instrument or the telecommunications device, and each functional unit determines at least one parameter, the value of which corresponds to the status of the synchronization implemented in the respective functional unit. | 2010-12-16 |
20100316107 | FREQUENCY DOMAIN EQUALIZATION METHOD FOR CONTINUOUS PHASE MODULATED SIGNALS - A method for frequency domain equalization of a cyclic CPM signal received via a channel is disclosed. In one aspect, the method includes representing the received cyclic CPM signal as a matrix model comprising a channel matrix representing influence of the channel, separate from a Laurent pulse matrix and a pseudocoefficient matrix respectively representing Laurent pulses and pseudocoefficients determined by Laurent decomposition of the received cyclic CPM signal. The method may further include applying a channel equalizer on the separate channel matrix and after the equalization. It may further include demodulating the received cyclic CPM signal by the matrix model, the demodulation exploiting known correlation properties of the Laurent pulses and the pseudocoefficients. | 2010-12-16 |
20100316108 | DEVICE AND METHOD OF DATA RECOVERY - A data recovery device and a data recovery method are provided. The data recovery device includes an equalizer, a slicer, a phase lock loop (PLL) circuit, a detection circuit, and a compensation circuit. The equalizer adjusts a radio frequency (RF) signal according to a compensation signal and outputs an equalized RF signal sliced by the slicer according to a slicing level to output an AC_RF signal with segments. The PLL circuit outputs a clock according to phases of the AC_RF signal. The detection circuit calculates and outputs time intervals in the segments according to the clock and detects and outputs sampling heights in the segments. The compensation circuit selects at least two of the sampling heights, calculates a ratio of the selected sampling heights according to the outputs of the detection circuit, and outputs the compensation signal according to a result of comparison between the ratio and a corresponding reference. | 2010-12-16 |
20100316109 | METHOD AND APPARATUS FOR ESTIMATING AND CORRECTING BASEBAND FREQUENCY ERROR IN A RECEIVER - A method and apparatus for estimating and correcting baseband frequency error in a receiver are disclosed. An equalizer performs equalization on a sample data stream and generates filter tap values based on the equalization. An estimated frequency error signal is generated based on at least one of the filter tap values. A rotating phasor is generated based on the estimated frequency error signal. The rotating phasor signal is multiplied with the sample data stream to correct the frequency of the sample data stream. Alternatively, a channel estimator performs channel estimation and generates Rake receiver finger weights based on at least one of the finger weights. An estimated frequency error signal is generated based on at least one of the finger weights. | 2010-12-16 |
20100316110 | TRANSMITTING/RECEIVING SYSTEM AND METHOD OF PROCESSING BROADCAST SIGNAL IN TRANSMITTING/RECEIVING SYSTEM - A transmitting system, a receiving system, and a method of processing broadcast signals are disclosed. The receiving system includes a tuner, a channel equalizer, a storage unit, an inner decoder, a deinterleaver, an outer decoder, and an interleaver. The tuner receives a broadcast signal including a data group. The channel equalizer channel-equalizes the broadcast signal. The storage unit stores mobile service data included in the channel-equalized broadcast signal, and repeatedly outputs the stored mobile service data for a predetermined number of turbo decoding iterations. The inner decoder matches the mobile service data being outputted from the storage unit with mobile service data being outer-decoded and fed-back and inner-decodes the matched mobile service data. The deinterleaver deinterleaves the inner-decoded mobile service data in block units. The outer decoder outer-decodes the deinterleaved mobile service data. The interleaver interleaves the outer-decoded mobile service data in block units and feeding-back the interleaved mobile service data to the inner decoder. | 2010-12-16 |
20100316111 | SIGNAL EQUALIZER FOR A SIGNAL TRANSMISSION NETWORK - In an RF signal transmission network such as the reverse channels of a coaxial cable network, there is provided at least one adaptive equalizer for pre- or post-filtering inter-symbol interference in the transmitted signals, the adaptive equalizer having a series of coefficients for which values are required. In order to improve the transmission efficiency the preamble used in these channels is shortened by coarsely estimating the channel using a short “unique word’ placed at the beginning of the equalizer training sequence. The coarse channel estimate is crudely inverted to produce a set of equalizer coefficients which partially equalize the channel. By initializing the adaptive equalizer with these approximate coefficients, it is possible to reduce the length of the training sequence needed for the equalizer to converge. | 2010-12-16 |
20100316112 | COMMUNICATION SIGNAL RECEIVER AND SIGNAL PROCESSING METHOD THEREOF - A communication signal receiver includes an adder, a slicer, and an infinite impulse response (IIR) filter. The adder performs an addition on a first signal and a filtered signal to generate an output signal. The slicer performs a hard decision on the output signal to generate a detecting result. The IIR filter is coupled to the slicer and the adder for processing the output signal to generate the filtered signal. The communication signal receiver further includes a decoder. The decoder receives and decodes the output signal to generate a decoded output signal, wherein the decoder is a Viterbi decoder. | 2010-12-16 |
20100316113 | RECORDED MEDIUM HAVING PROGRAM FOR CODING AND DECODING USING BIT-PRECISION, AND APPARATUS THEREOF - A coding/decoding device using a bit-precision is disclosed. A coding device includes a bit-precision selecting unit, selecting a bit-precision value according to data to be coded; and a coding unit, generating a bit-stream by coding the data according to the selected bit-precision value, whereas the selected bit-precision value is inserted into the bit-stream. | 2010-12-16 |
20100316114 | BANDWIDTH SENSITIVE DATA COMPRESSION AND DECOMPRESSION - Data compression and decompression methods for compressing and decompressing data based on an actual or expected throughput (bandwidth) of a system. In one embodiment, multiple access profiles are utilized to assist in compressing data according to various compression rates and compression ratios. | 2010-12-16 |
20100316115 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING AUDIO/VIDEO CONTENTS IN WIRELESS ACCESS NETWORKS - Disclosed are method and apparatus for transmitting/receiving audio/video content data in wireless access networks. The method comprises the steps of: encoding the audio/video content data into a basic stream having a first level of quality and an advanced stream, combination of the basic stream and the advanced stream has a second level of quality higher than the first level of quality; and transmitting the basic stream and the advanced stream with a first power and a second power lower than the first power on antennas, respectively. With the method and apparatus of the invention, the low SINR users are able to maintain the low data rate receiving the basic stream and the high SINR user can receive both the basic stream and advanced stream from two logical channels. | 2010-12-16 |
20100316116 | PROCESSING DATA STREAMS - Streams of data are processed. A stream of data including a plurality of encoded symbols is received. Symbols from a first subset of the encoded symbols are processed contemporaneously to determine a second subset of encoded symbols, each of which uses a common coding context. At least one symbol from the second subset is evaluated to determine the common coding context. The common coding context is used to process the second subset of encoded symbols. | 2010-12-16 |
20100316117 | METHOD AND APPARATUS FOR DECODING RECEIVED DATA SIGNALS - Decoding logic is arranged to receive an encoded data signal. The decoding logic comprises a convolutional decoder arranged to perform convolutional decoding on the encoded data signal, to produce a decoded data signal. The decoding logic comprises header bit prediction logic arranged to predict a value for at least one header bit within the decoded data signal, and to provide the predicted value for the at least one header bit to the convolutional decoder to be applied during convolutional decoding. | 2010-12-16 |
20100316118 | ADAPTIVE MOTION INFORMAITON COST ESTIMATION WITH DYNAMIC LOOK-UP TABLE UPDATING - Adaptive motion information cost estimation is achieved in processing video information. A transmission cost is estimated that is associated with encoding a motion vector difference (mvd) in motion vectors that describe a motion characteristic of the video information. The mvd is encoded based on minimizing a rate estimation mismatch associated with the motion vectors. The encoding step includes computing a bit count associated with the mvd using CABAC. A value is indexed that corresponds to the cost from one or more entries in the lookup table. The cost relates to context or content characteristics associated with the video information. The lookup table is adaptively updated based on a change in the contextual information or content characteristics. The value is dynamically adjustable based on the change. | 2010-12-16 |
20100316119 | PRESERVING TEXT QUALITY IN VIDEO ENCODING - A video encoder receives a macro-block of an image frame, and determines whether the macro-block contains text. The video encoder computes a quantization parameter for quantizing the macro-block, with the quantization parameter computed to be smaller if the macro-block is determined to contain text. The video encoder encodes the macro-block using the quantization parameter. Text quality in the encoded macro-block is preserved. | 2010-12-16 |
20100316120 | MOVING PICTURE CODING DEVICE AND BROADCAST WAVE RECORDING DEVICE - A device coding a moving picture in units of a group including pictures, including: a generation unit generating quantization matrices; a selection unit selecting a quantization matrix for a current picture; a unit storing the quantization matrices in a header part of the group, and coding the current picture; a unit including a virtual buffer, and performing buffer simulation based on an amount of bits to be outputted; and a unit determining whether bit amount reducing is required for the current picture, based on a result of the buffer simulation, wherein the generation unit generates a normal quantization matrix used in common for at least one of the pictures, and a quantization matrix for bit amount reducing used only when the bit amount reducing is required, and the selection unit selecting the quantization matrix for bit amount reducing used for the current picture, when the bit amount reducing is required. | 2010-12-16 |
20100316121 | MULTI-VIEW VIDEO CODING/DECODING METHOD - A multi-view video coding method includes the following steps: an un-coded group of pictures (GOP) is obtained from an un-coded multi-view video. Wherein, the un-coded GOP includes picture sets of several un-coded views. Several present coding views are selected from the un-coded views according to view levels of the un-coded views. Wherein, picture sets of the present coding views includes several present coding pictures. A target coding picture is selected from the present coding pictures according to view levels of and temporal levels of the present coding pictures. At least a coded reference picture, which is referenced by the target coding picture for prediction, is obtained. The target coding picture is coded according to the coded reference picture. In addition, a multi-view video decoding method is also disclosed. | 2010-12-16 |
20100316122 | MULTIVIEW VIDEO CODING OVER MPEG-2 SYSTEMS - A multiplexer may produce an MPEG-2 (Motion Picture Experts Group) System standard bitstream comprising views with nonconsecutive view order indexes. In one example, an apparatus comprises a video encoder that encodes a plurality of views of a scene, a multiplexer that constructs a data structure for signaling that a corresponding MPEG-2 (Motion Picture Experts Group) System standard bitstream comprises a first view of the plurality of views of the scene associated with a first view order index and a second view of the plurality of views of the scene associated with a second view order index, wherein the first view order index and the second view order index are non-consecutive, and an output interface that outputs the data structure. | 2010-12-16 |