52nd week of 2012 patent applcation highlights part 34 |
Patent application number | Title | Published |
20120327916 | METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION AND USER DEVICE - The present invention provides a method for transmitting uplink control information and a user device, which transmits ACK/NACK (ACKnowledgement/Negative ACK) information and uplink control information other than the ACK/NACK information using a first PUCCH resource for transmitting the ACK/NACK information and a second PUCCH resource for transmitting the uplink control information within an uplink sub-frame, respectively when the first PUCCH resource and the second PUCCH resource belong to the same PUCCH area in each slot of the uplink sub-frame, and to drop the transmission of the uplink control information other than the ACK/NACK information using the first PUCCH resource when the first PUCCH resource and the second PUCCH resource belong to different PUCCH areas within the uplink sub-frame. | 2012-12-27 |
20120327917 | METHOD AND DEVICE FOR ALLOCATING CONTROL CHANNEL - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device which enable a terminal to receive a control channel in a wireless communication system that uses multi-carriers, the method comprising the following steps: receiving a plurality of search space through a sub-frame, wherein each of the search spaces includes a plurality of control channel candidate sets and each of the search spaces corresponds to each of the carriers; and monitoring the control channel candidates for control channels, wherein the plurality of search spaces are connected in the resource region for the control channels according to an allocation pattern and with the starting point as the basis, and the allocation pattern changes according to time. | 2012-12-27 |
20120327918 | TIMING ADJUSTMENT FOR EXTENDING THE WIRELESS RANGE OF A VEHICLE TELEMATICS UNIT - A system and method of extending the range of a vehicle telematics unit includes determining that a vehicle telematics unit is outside of a geographic range beyond which time division multiple access (TDMA) transmissions sent from the vehicle telematics unit to a base station arrive at the base station after a time slot allocated to the vehicle telematics unit in a time frame has passed; calculating a time delay that causes the TDMA transmissions to arrive at the base station in the allocated time slot of a subsequent time frame; and sending TDMA transmissions from the vehicle telematics unit at a time determined using the time delay. | 2012-12-27 |
20120327919 | FIXED DETERMINISTIC POST-BACKOFF FOR CYCLIC PRIORITIZED MULTIPLE ACCESS (CPMA) CONTENTION-FREE SESSIONS - A cyclic prioritized multiple access method is disclosed which includes Fixed Deterministic Post-Backoff. Fixed deterministic post-backoff reduces conflicts between access points of overlapping cells. Contention-free sessions can be generated, one from each overlapping cell. Each active access point engages in a fixed deterministic post-backoff. A fixed deterministic backoff delay (Bkoff times a fixed number of idle time slots) is used by all access points, with the value of Bkoff being greater than the number of overlapping cells. The Bkoff should be large enough to enable the traffic that needs to be accommodated by the channel. Each access point has a backoff timer that is counted down using the shortest interframe space possible. A contention-free session is initiated when the backoff timer expires, and it is then reset to the value of Bkoff to start a new cycle. | 2012-12-27 |
20120327920 | METHODS TO ENHANCE COEXISTENCE WITH LOW ENERGY WIRELESS NETWORKS - Disclosed implementations address the coexistence problem of wireless local area network (WLAN) and Bluetooth Low Energy (BLE) technologies on the same device. For example, an apparatus includes a WLAN controller configured to cause a wireless transceiver module to send and receive packets over a wireless medium. A second controller is coupled to the WLAN controller and also configured to cause the wireless transceiver module to send and receive packet. The second controller informs the WLAN controller that the second controller is going to cause an advertising packet to be transmitted by the wireless transceiver module. The WLAN controller responds by causing a first protection packet to be transmitted by the wireless transceiver module, said first protection packet causes all wireless devices receiving the protection packet to inhibit use of the wireless medium during a timer period which includes the advertising packet. Other embodiments are disclosed as well. | 2012-12-27 |
20120327921 | DEVICE FOR PROVIDING RADIOFREQUENCY SIGNAL CONNECTIONS - What is disclosed is a device for providing radiofrequency signal connections for users, wherein the device comprises a plurality of access points which transmit or receive radiofrequency signals in different predetermined radiofrequency bands and are each connected via a transmission and reception signal path to at least one shared transmitting and receiving antenna, filter means being provided in the transmission and reception signal paths respectively and isolating the radiofrequency bands sufficiently from one another and from predetermined mobile radio frequency bands. | 2012-12-27 |
20120327922 | POSITIONING DEVICE AND POSITIONING METHOD - A positioning device for measuring a position includes a WLAN positioning calculation unit that performs first positioning, based on first radio waves from access points; a satellite positioning unit that performs second positioning, based on second radio waves from satellites; a positioning result determination unit that determines whether a positioning result by the WLAN positioning calculation unit exists within a predetermined range from position information or a measured position, based on the position information to be obtained during the second positioning by the satellite positioning unit or the measured position by the satellite positioning unit; and a positioning result adoption determination unit that determines whether the positioning result is adopted, based on a determined result by the positioning result determination unit. | 2012-12-27 |
20120327923 | WIRELESS ACCESS POINT SERVICE COVERAGE AREA MANAGEMENT - A wireless station within a Wireless Local Area Network (WLAN) includes a processor, a radio and a directional antenna. The radio gathers participatory data based on communications involving the wireless station and non-participatory data based on communications the wireless station listens to, but does not participate in. The processor produces an operational report based on the participatory data and the non-participatory data and provides the operational report to the WLAN. The processor further alters a gain vector of the directional antenna based on instructions received from the WLAN in response to the operational report. | 2012-12-27 |
20120327924 | MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION, AND MOBILE STATION - The present invention is a mobile communication system having a mobile station UE, in which CA is performed, configured to transmit an uplink data signal to a radio base station eNB, by using a plurality of “Component Carriers” having different carrier frequencies, and the mobile communication system includes TA timer management units | 2012-12-27 |
20120327925 | Method and System for Efficiently Scheduling Short Range Wireless Data Transmissions - According to one disclosed embodiment, a method for efficiently scheduling short-range wireless data transmissions is described. This method may include providing beacon intervals for timed data transmission, receiving a plurality of requests for data, delaying allocation of any of the plurality of requests for data into one of the beacon intervals until a number of admitted requests for data exceeds a threshold. The method may also include allocating timeslots for pseudo-static service periods before allocating timeslots for non-pseudo static service periods and allocating timeslots for non-pseudo static service periods in descending order of relative time urgency. | 2012-12-27 |
20120327926 | RADIO TELECOMMUNICATIONS SYSTEM AND METHOD OF OPERATING THE SAME WITH POLLING - An apparatus or method for transmitting data blocks on a communications channel having a radio link between two stations including a user equipment comprises receiving first data blocks from the user equipment, and transmitting second data blocks to the user equipment. A polling interval is dynamically set for the transmission of polling messages to the user equipment after transmission of the second data blocks, the polling interval being set in accordance with at least one of: a size of one or more data blocks received by the apparatus from the user equipment, a size of one or more blocks transmitted from the apparatus to the user equipment, and a service to which the user equipment is subscribed. The apparatus may be used as a PCU in a cellular mobile telephone system. | 2012-12-27 |
20120327927 | Method of Efficiently Synchronizing to a Desired Timeslot in a Time Division Multiple Access Communication System - The time required for the receiving device to synchronize to a desired timeslot is reduced. In operation, a transmitting device selects a synchronization pattern associated with the desired timeslot that is at least mutually exclusive from synchronization patterns associated with other timeslots on the same frequency in the system. Once selected, the transmitting device transmits a burst embedding the synchronization pattern that was selected, where appropriate. If the receiving device detects the synchronization pattern, it immediately synchronizes with the timeslot with confidence that it is synchronizing to the desired timeslot. Using synchronization pattern associated with the desired timeslot that is at least mutually exclusive from synchronization patterns associated with the other timeslots on the same frequency also improves spectral efficiency in direct-mode transmissions, thus allowing more than one subscriber unit to simultaneously transmit in direct mode on a frequency without interfering with other transmissions on the frequency. | 2012-12-27 |
20120327928 | METHOD AND APPARATUS FOR TRACKING A CHANNEL TIMING MESSAGE AND SUPPORTING CHANNEL SCANNING IN A DIGITAL MOBILE RADIO SYSTEM - A method and apparatus for enabling a radio to track channel timing and support channel scanning A non-leading radio operating on a communications channel, determines a diffusion period during which channel timing is to be propagated from a leading radio to non-leading radios operating on the communications channel. The non-leading radio implements a first scanning pattern during the diffusion period to scan a CT designated channel for a control timing message with a timing signal sent from the leading radio. The first scanning pattern involves scanning the CT designated channel during every other scan interval and scanning non-priority channels and priority channels during scan intervals not used on the CT designated channel. | 2012-12-27 |
20120327929 | Connection Switching Device and Telephone Device - A connection switching device for a telephone device supporting a PSTN function and a VoIP function and taking the PSTN function as a default voice communication function is disclosed. The connection switching device includes a dual tone multi-frequency (DTMF) receiver for determining whether a phone number inputted to the telephone device includes a specified trigger code, and a control unit coupled to the DTMF receiver for switching the default voice communication function from the PSTN function to the VoIP function when a decision result of the DTMF receiver indicates that the phone number includes the specified trigger code. | 2012-12-27 |
20120327930 | Method and System For Calling Traditional Circuit Switched Domain Network User By Packet Core Network - A method and a system for calling a traditional circuit switched domain network user by a packet core network. The method includes: after receiving a request message from a call session control unit, a media gateway control unit sends the call session control unit a first call progress message carrying a preset prompt tone indicating please wait; the media gateway control unit sends an initial address message to the traditional circuit switched domain network and start a preset timer; if the timer expires and the traditional circuit switched domain network does not respond, the media gateway control unit sends the call session control unit a second call progress message carrying a preset prompt tone indicating that the other party is temporarily unaccessible, and the media gateway control unit proceeds according to a preset policy. Resource waste due to waiting is avoided and better user friendliness of a service is provided. | 2012-12-27 |
20120327931 | GATEWAYS INTEGRATING NAME-BASED NETWORKS WITH HOST-BASED NETWORKS - A method of retrieving content from a network with a host-based network and a name-based network includes receiving, at a network node, a first message including at least one of a first host-based request and a first name-based interest, and transmitting, from the network node, a second message based on the at least one of the first host-based request and the first name-based interest. | 2012-12-27 |
20120327932 | METHOD FOR SEARCHING FOR ROUTES IN A DATA TRANSMISSION NETWORK - A method for searching for at least one route between an origin node and a destination node in a data transmission network, which includes two searches:
| 2012-12-27 |
20120327933 | Adjacency Discovery Through Multicast and Single-Hop Messaging - A first node of a network may send a multicast discovery message comprising a domain identifier of the first node. The first node may also send a single-hop discovery message to one or more single-hop neighbors of the first node. The single-hop discovery message may comprise the domain identifier of the first node. A plurality of neighbor discovery messages may be received. At least one node of the network may be identified through the neighbor discovery messages. A level of trust may be determined for each identified node of the network based on at least one of the neighbor discovery messages. | 2012-12-27 |
20120327934 | Message Processing Engine with a Virtual Network Interface - A message processing engine may intercept outgoing and incoming messages by bridging an interface between a virtual network interface and a physical network interface. The message processing engine may have a raw packet analyzer that may determine if a packet is to be processed based on a policy, and then may decode the packet using a first set of protocols, perform a translation in the decoded state, then encode the packet using the same or a different set of protocols. The message processing engine may be used to perform translations to enable two otherwise incompatible devices to communicate as well as apply various protocols including security protocols to communications with another device similarly configured. In many embodiments, the raw packet analyzer may be a service with administrative privileges, but the decoder, encoder, and translator may be operated with user privileges. | 2012-12-27 |
20120327935 | METHOD AND APPARATUS FOR MANAGING CONFIGURATION INFORMATION OF MULTICAST AND BROADCAST SERVICE - For managing MBS configuration information, a terminal decodes an MBS configuration message including configuration information for an MBS operation and a lifetime, and then decodes an MBS configuration message that is transmitted at a time that the lifetime indicates. | 2012-12-27 |
20120327936 | FCOE OVER TRILL - A method for processing packets, in a network device including at least one processing engine that i) is not configured to process destination information that conforms to a first protocol and ii) is configured to process destination information that conforms to a second protocol, includes receiving a packet at the network device, and determining, in the network device, first destination information included in the packet. The first destination information conforms to the first protocol. The method also includes generating, in the network device, second destination information conforming to a third protocol based on the first destination information. The method also includes generating, in the network device, third destination information conforming to the second protocol based on the second destination information. The method also includes processing the packet with the at least one processing engine included in the network device using the third destination information. | 2012-12-27 |
20120327937 | FCOE OVER TRILL - A method for forwarding FCoE packets in a network switching device includes receiving a first packet at the network switching device via an Ethernet link, determining, in the network switching device, an FC destination identifier included in the first packet, updating, in the network switching device, an Ethernet address based on the FC destination identifier, generating, in the network switching device, a first TRILL destination identifier based on the updated Ethernet address, and causing, in the network switching device, the first packet to be forwarded to a different device based on the first TRILL destination identifier. | 2012-12-27 |
20120327938 | MESSAGE TRANSMISSION IN VIRTUAL PRIVATE NETWORKS - The disclosure relates to a method for transmitting a message in a Hierarchical Layer 2 Virtual Private Network (H-L2VPN). A destination MAC address, to which a message is to be forwarded upon receiving the message, is determined by a first peer node of the network. The first peer node determines whether one or more equivalent pseudo wires (PWs) connected thereto form a path to the destination MAC address. When it is determined that more than one equivalent PW forms a path to the destination MAC address, an arbitrary equivalent PW is selected from the more than one equivalent PW by the first peer node. The first peer node sends the message, via the selected equivalent PW, to a second peer node of the network connected to the selected equivalent PW for forwarding to the destination MAC address. | 2012-12-27 |
20120327939 | COMMUNICATION METHOD OF GATEWAY DEVICE SUPPORTING MUTUAL COMMUNICATION OF CAN AND MODBUS AND GATEWAY DEVICE USING THE SAME - A gateway device is provided. The gateway device for relaying communication between an automotive network communication device and an industrial field bus communication device includes: a Controller Area Network (CAN) input unit for receiving a CAN input data frame from an external; and a conversion unit for converting the received CAN input data frame into a Modbus output data frame according to a predetermined method. | 2012-12-27 |
20120327940 | METHOD, APPARATUS AND SYSTEM FOR TRANSMITTING DATA - The present invention discloses a method, an apparatus, and a system for transmitting data. A method for sending data includes: categorizing a received packet based on field information of a preset field in a packet header; encapsulating, for each category of packets, field information of a preset field in a packet header of a packet to an overhead field of a data unit, and encapsulating a packet payload of each packet and field information of another field except the preset field in a packet header of each packet to a payload field of the data unit; and sending the generated data unit to a destination node of the packet. The method, the apparatus, and the system are capable of improving bandwidth usage of a transmission link. | 2012-12-27 |
20120327941 | METHOD AND APPARATUS FOR TRANSPORTING PACKETS WITH SPECIFIC TRAFFIC FLOWS HAVING STRICT PACKET ORDERING REQUIREMENTS OVER A NETWORK USING MULTIPATH TECHNIQUES - The method that is disclosed enables specific information network traffic flows to retain packet ordering in a packet network in which multipath techniques are used. In a common network usage a plurality of traffic flows may be aggregated into a larger traffic flow. In such a situation, a finest granularity of individual traffic flow is referred to as a microflow and an aggregation of traffic flows is referred to as a traffic aggregate. The traffic aggregate may take a path from an ordered set of nodes including a first network element referred to as an ingress node through zero or more intermediate network elements referred to as midpoint nodes, to a final network known as the egress node. The ordered set of nodes traversed by such a traffic aggregate is referred to as the path taken by that traffic flow. At any node prior to the egress, the traffic aggregate may be split among multiple links or lower layer paths in reaching the next node in the path. In such a circumstance, the traffic aggregate is split among the available links or lower layer paths. Techniques for splitting traffic are collectively referred to as multipath techniques, or more briefly as multipath. Individual links or lower layer paths within a multipath are referred to as component links. Individual traffic flows may be identified by various existing multipath techniques. A set of existing multipath techniques are able to keep all packets within a given microflow on the same component link. The method disclosed allows specific traffic aggregates within a larger traffic aggregate to be carried on a single component link while allowing other traffic aggregates within the larger traffic aggregate to be spread among multiple component links. | 2012-12-27 |
20120327942 | COMMUNICATION NETWORK SYSTEM - A communication network system including a plurality of nodes disposed on a communication bus, and where each of the nodes is capable of transitioning between a normal operation mode and a low electricity consumption mode. The communication network system controls only a required node, in order to communicate with such required node, by transitioning the required node from the low power mode to the normal operation mode. To control the mode of the required nodes, a controlling node keeps a signal change state of the communication bus for a period that is longer than a normal communication frame length. The required node determines whether the period of the signal change state is longer than a threshold of the required node itself, to output a wakeup signal to a control circuit. | 2012-12-27 |
20120327943 | Media Transmission Over a Data Network - A new approach towards transmitting media across a network is disclosed. In an embodiment, the sender prioritizes the data to be sent from a pool of candidate data, and sends it under some bandwidth constraint. The pool of candidate data reflects the present state of the media, and certain data may be discarded without being sent if it becomes irrelevant to the present state of the media. The receiver sends feedback regarding what data is received by it, which may be used for choosing candidate data, or for prioritizing it. | 2012-12-27 |
20120327944 | Access Method and Apparatus for Multi-Protocol Label Switching Layer 2 Virtual Private Network - The disclosure discloses an access method and apparatus for an Multi-protocol Label Switching Layer 2 Virtual Private Network (MPLS L2VPN), wherein the method includes the following steps: respectively making a message of a customer side and a message of a network side access operator routing equipment, setting access types of the messages to be mapped to virtual ports, and respectively allocating respective Source Virtual Ports (SVP) and Destination Virtual Ports (DVP) of the customer side and the network side to each access; establishing a data forwarding channel of the MPLS L2VPN by respectively establishing connection from the SVP of the customer side to the DVP of the opposite side and the connection from the SVP of the network side to the DVP of the opposite side. With the disclosure, various access modes are uniformly mapped to virtual ports, and then the MPLS L2VPN is accessed; furthermore, forwarding can be performed based on a Virtual Switch Interface (VSI) and virtual ports. Thus, the disclosure enhances the extensibility of accessing the MPLS L2VPN by is customer messages, reduces the management complexity of accessing the MPLS L2VPN and the difficulty in system development, and improves the system reliability. | 2012-12-27 |
20120327945 | Method and system for managing terminal states or terminal events in machine-to-machine or machine-to-man or man-to-machine (M2M) service - The disclosure discloses a method for managing terminal states or terminal events in a Machine-to-Machine, Machine-to-Man or Man-to-Machine (M2M) service, including: a terminal or a terminal gateway transmits state or event information of itself to a state or event management unit through a gateway device; an M2M service platform determines a service interaction operation with the terminal or the terminal gateway according to the state or event information of the terminal or the terminal gateway in the state or event management unit. The disclosure also discloses a system for managing terminal states or terminal events in an M2M service. With the method and the system, a network side can know the state or event of a terminal in time, and process services according to the state or event of the terminal, thus the success rate of the service is improved. | 2012-12-27 |
20120327946 | SYSTEMS AND METHODS FOR NETWORK ROUTING IN A MULTIPLE BACKBONE NETWORK ARCHITECTURE - Embodiments of a network architecture include a backbone node having a plurality of independent routers or switches connected in a matrix, wherein the matrix includes a plurality of stages of routers or switches, to form a node having a node switching capacity that is greater than the node switching capacity of the individual routers or switches. A method includes assigning one of a plurality of backbone networks to a destination network address, associating a next hop loopback address with the destination network address, and advertising the destination network address in combination with the next hop loopback address through the selected backbone network address. | 2012-12-27 |
20120327947 | SERVICE DATA FLOW DIRECTION/REDIRECTION - Systems and methods are disclosed for directing/redirecting service data flows to Packet Data Networks (PDN). A subscriber database (e.g., HSS) stores direction/redirection criteria along with mapping data that includes information for directing/redirecting service data flows to PDNs. An element of a network may then query the subscriber database to direct or redirect service data flows to PDNs. The subscriber database receives a query from a network element, and identifies the direction/redirection criteria and mapping data for the data service. The subscriber database then transmits the direction/redirection criteria and mapping data to the network element in response to the query to allow the network element to direct/redirect a service data flow to a PDN for the data service. | 2012-12-27 |
20120327948 | ADJUSTMENT OF NEGATIVE WEIGHTS IN WEIGHTED ROUND ROBIN SCHEDULING - In one embodiment, a network processor services a plurality of queues having data using weighted round robin scheduling. Each queue is assigned an initial weight based on the queue's priority. During each cycle, an updated weight is generated for each queue by adding the corresponding initial weight to a corresponding previously generated decremented weight. Further, each queue outputs as many packets as it can without exceeding its updated weight. As each packet gets transmitted, the updated weight is decremented based on the number of blocks in that packet. If, after those packets are transmitted, the decremented weight is still positive and the queue still has data, then one more packet is transmitted, no matter how many blocks are in the packet. When a decremented weight becomes negative, the weights of the remaining queues are increased to restore the priorities of the queues as set by the initial weights. | 2012-12-27 |
20120327949 | DISTRIBUTED PROCESSING OF DATA FRAMES BY MULTIPLE ADAPTERS USING TIME STAMPING AND A CENTRAL CONTROLLER - An apparatus and a method where a plurality of physically separate data receiving/analyzing elements receive data packets and time stamp these. A controlling unit determines a storing address for each data packet based on at least the time stamp, where the controlling unit does not perform the determination of the address until a predetermined time delay has elapsed after the time of receipt. | 2012-12-27 |
20120327950 | Method for Transmitting Data Packets - Method for transmitting data packets in an Ethernet automation network, wherein the method comprises receiving a first data packet having a first priority by a transmitter, starting a transmit operation to send the first data packet from the transmitter to a receiver, receiving a second data packet having a second priority at an instant in time by the transmitter, where the second priority is higher than the first priority, and where the second data packet is to be transmitted to the receiver. The method further comprises aborting the transmit operation of the first data packet within one of the data frames of the first data packet which is located in the transmit operation at the time of the reception of the second data packet, and thereupon transmitting the second data packet from the transmitter to the receiver. | 2012-12-27 |
20120327951 | Channel Service Manager with Priority Queing - A system and method are provided for prioritizing network processor information flow in a channel service manager (CSM). The method receives a plurality of information streams on a plurality of input channels, and selectively links input channels to CSM channels. The information streams are stored, and the stored the information streams are mapped to a processor queue in a group of processor queues. Information streams are supplied from the group of processor queues to a network processor in an order responsive to a ranking of the processor queues inside the group. More explicitly, selectively linking input channels to CSM channels includes creating a fixed linkage between each input port and an arbiter in a group of arbiters, and scheduling information streams in response to the ranking of the arbiter inside the group. Finally, a CSM channel is selected for each information stream scheduled by an arbiter. | 2012-12-27 |
20120327952 | ETHERNET TAG APPROACH TO SUPPORT NETWORKING TASK OFFLOAD - A two chip network adapter is used to implement offloaded networking tasks. The first chip is the main ethernet controller chip. The second chip implements the offloaded tasks. Communication between a host and the second chip is done by adding offload and completion tags to the ethernet frame header of frames associated with the offloaded networking task. | 2012-12-27 |
20120327953 | DYNAMIC ADVANCE RESERVATION WITH DELAYED ALLOCATION - A method of scheduling data transmissions from a source to a destination, includes the steps of: providing a communication system having a number of channels and a number of paths, each of the channels having a plurality of designated time slots; receiving two or more data transmission requests; provisioning the transmission of the data; receiving data corresponding to at least one of the two or more data transmission requests; waiting until an earliest requested start time T | 2012-12-27 |
20120327954 | Packet Meta-Tagging Using Excess Payload - Packet meta-tagging using excess payload is described. In an implementation, a total packet length value specified in packet received at a network element is adjusted while preserving a data length value associated with a data portion of the packet to generate additional space in the packet to accommodate packet transmission meta-data. Packet-transmission meta-data can be inserted into the additional space created in the packet by the network element. In some implementations, the meta-data describes packet transmission characteristics of the packet. For example, the meta-data can be a timestamp corresponding to the time at which the packet was received by the network element. The meta-data can be an identifier corresponding to the network element that received the packet. | 2012-12-27 |
20120327955 | PHYSICAL LAYER SIGNALLING FOR DIGITAL BROADCAST SYSTEM - The present invention relates to a physical layer signalling in a digital broadcast network. In particular, for a digital broadcast network supporting a configuration with a plurality of physical layer pipes, a type indicator is signalled on physical layer for a pipe, the type indicator indicates the format of the input stream which may specify a transport stream, a generic stream or an IP stream. In addition, per physical layer pipe application of header and/or content compression to the user packet headers of the input stream is signalled. Another physical layer parameters are advantageously provided or extended in order to increase the flexibility and efficiency of the layer 1 signalling. | 2012-12-27 |
20120327956 | FLOW COMPRESSION ACROSS MULTIPLE PACKET FLOWS - In described embodiments, processing of multiple data streams, such as packet streams or flows, associated with data streaming is improved by grouping similar types of traffic, and generating signatures for each of the flows. For a given input flow, its signature is compared against other flow signatures and a best match is determined. Given the context information for the best match, the present input flow can then be compressed. Processing, such as encoding and compression, for the data transformation examines currently arriving data and then processes the data based on the context data and previously known context information for other data streams from history stored in memory. | 2012-12-27 |
20120327957 | DATA PACKET SYNCHRONIZATION AND RETURN-TO-ZERO CONVERSION - The present invention relates to a system and method that enable transmission of multiple data packet lines as an optical time-division multiplexed signal. The invention provides a method and system that can synchronize data packet signals to a clock and convert them into return-to-zero signals. When multiple data packet lines are converted, they can be multiplexed together and transmitted according to well-known methods. | 2012-12-27 |
20120327958 | METHOD FOR REMOTE DEVICE PROVISIONING AND INSERTION/EXTRACTION OF OVERHEAD/EOAM DATA FOR VARIOUS PROTOCOLS - A device demultiplexes an optical signal to produce a number of client streams for client devices. The device produces overhead packets for the client devices. The overhead packets are sent using a packet interface on the device. The overhead packets are sent to the client devices with a Virtual Local Area Network Identification (VLAN ID) portion of the overhead packets identify a client device of the client devices. | 2012-12-27 |
20120327959 | COMPACT OPTICAL FREQUENCY COMB SYSTEMS - Compact optical frequency sources are described. The comb source may include an intra-cavity optical element having a multi-material integrated structure with an electrically controllable active region. The active region may comprise a thin film. By way of example, the thin film and an insulating dielectric material disposed between two electrodes can provide for rapid loss modulation. In some embodiments the thin film may comprise graphene. In various embodiments of a frequency comb laser, rapid modulation of the CEO frequency can be implemented via electric modulation of the transmission or reflection loss of an additional optical element, which can be the saturable absorber itself. In another embodiment, the thin film can also be used as a saturable absorber in order to facilitate passive modelocking. In some implementations the optical element may be formed on a cleaved or polished end of an optical fiber. | 2012-12-27 |
20120327960 | MODE-LOCKED FIBER LASER BASED ON NARROWBAND OPTICAL SPECTRAL FILTERING AND AMPLIFIER SIMILARITONS - Implementations and examples of mode-locked fiber lasers based on fiber laser cavity designs that produce self-similar pulses (“similaritons”) with parabolic pulse profiles with respect to time at the output of the fiber gain media to effectuate the desired mode locking operation. An intra-cavity narrowband optical spectral filter is included in such fiber lasers to ensure the proper similariton conditions. | 2012-12-27 |
20120327961 | AMPLITUDE AND PHASE MODULATION OF A LASER BY MODULATION OF AN OUTPUT COUPLER - There is provided an output coupler modulated laser. The laser includes an optical resonator for light to circulate within, a gain medium housed within the optical resonator and a pump. An output coupler included in the optical resonator is responsive to a control signal to generate a modulated optical signal at a laser output port, and a complementary signal at a through port to retain circulating light within the optical resonator. The output coupler and the pump are jointly controllable to maintain the power level of the circulating light substantially at a selected, steady state level, and to decouple the modulation response of the laser from the intrinsic response of the circulating light due to interaction with the gain medium. The output coupler is configurable for simple amplitude modulation, Phase-Shift Keying (PSK), Quadrature Amplitude Modulation (QAM), and is suitable for use with high-finesse, micron or millimeter scale resonators. | 2012-12-27 |
20120327962 | SYSTEM AND METHOD FOR SUPPRESSING PARASITICS IN AN OPTICAL DEVICE - An optical device, a method of making a laser gain medium, and a method of suppressing parasitics in a laser device include a core region comprising a plurality of a first type of ions that absorb energy at a first wavelength and transfer the absorbed energy to a plurality of a second type of ions that lase at a second wavelength after receiving the transferred energy. A cladding region coupled to the core region comprising another plurality of the second type of ions that suppress parasitics in the optical device by absorbing energy of at least a transverse portion of the second wavelength that enters the cladding region. | 2012-12-27 |
20120327963 | QUASI-REMOTE LASER PULSE COMPRESSION AND GENERATION OF RADIATION AND PARTICLE BEAMS - A system and methods for the quasi-remote compression and focusing of a moderate-intensity laser pulse to form a much higher intensity beam that can be directed at a target and used as a probe beam or used in a probe beam converter to generate other forms of electromagnetic radiation or energetic particles. A system for the quasi-remote propagation of high-intensity laser beams in accordance with the present invention comprises a main platform on which a first, “seed” laser pulse is generated, stretched, and amplified, and a remote platform, located at a distance from the main platform, which is configured to receive the amplified and stretched pulse and convert it into the high-intensity laser beam. The high-intensity laser beam in turn can then be converted into one or more probe beams directed at a target object. | 2012-12-27 |
20120327964 | ALGORITHM TO DRIVE SEMICONDUCTOR LASER DIODE - An algorithm to drive a semiconductor laser diode (LD) is disclosed. The algorithm assumes that the modulation current to keep the extinction ratio in constant has temperature dependence represented by an exponential function under the average output power of the LD is kept constant by an auto-power-control (APC). When a tracking error exists and the approximation by an exponential function is turned out in failure, the algorithm adds a correction to the exponential function determined by a difference between a practically measured modulation current and another modulation current calculated from a value determined for a bared LD. | 2012-12-27 |
20120327965 | SEMICONDUCTOR LASER ELEMENT, METHOD OF MANUFACTURING SEMICONDUCTOR LASER ELEMENT, AND OPTICAL MODULE - In order to provide a semiconductor laser element or an integrated optical device with high reliability, a horizontal-cavity semiconductor laser or an optical module includes a deeply dug DBR mirror serving as a cavity mirror, the deeply dug DBR mirror being composed of a material that is lattice-matched to a substrate and that has a band gap energy that does not absorb light emitted from an active layer. | 2012-12-27 |
20120327966 | PHOTONIC CRYSTAL SURFACE EMITTING LASER AND METHOD OF MANUFACTURING THE SAME - A photonic crystal surface emitting laser, having an n-type cladding layer formed on a substrate; an active layer formed on the n-type cladding layer; an electron blocking layer formed on the active layer and made of a second p-type semiconductor; and a two-dimensional photonic crystal layer that is formed on the electron blocking layer, includes a plurality of layers that are made of a first p-type semiconductor and have different band gaps, and has a high and a low refractive index portion in an in-plane direction. The band gaps of the plurality of layers are smaller than a band gap of the second p-type semiconductor and decrease stepwise or continuously in a lamination direction of the plurality of layers. A third p-type semiconductor having an acceptor doping concentration smaller than that of the second p-type semiconductor is disposed so as to cover a surface of the electron blocking layer. | 2012-12-27 |
20120327967 | GROUP III NITRIDE SEMICONDUCTOR LASER DEVICE, EPITAXIAL SUBSTRATE, METHOD OF FABRICATING GROUP III NITRIDE SEMICONDUCTOR LASER DEVICE - A nitride semiconductor laser device includes a p-type cladding layer, an active layer and an n-type cladding layer. The p-type cladding layer and the n-type cladding layer comprise indium and aluminum as group-III constituent. The n-type cladding layer, active layer and p-type cladding layer are arranged along the normal of a semi-polar semiconductor surface of a substrate. This surface tilts toward the m-axis of the hexagonal nitride by an angle of 63 degrees or more and smaller than 80 degrees from a plane orthogonal to a reference axis extending along the c-axis thereof. The active layer generates light having a peak wavelength in the range of 480 to 600 nm. The refractive indices of the n-type cladding layer and p-type cladding layer are smaller than that of GaN. The n-type cladding layer has a thickness of 2 μm or more while the p-type cladding layer has a thickness of 500 nm or more. | 2012-12-27 |
20120327968 | ELECTRODE ARM OF A METALLURGICAL MELTING FURNACE - The invention relates to an electrode arm ( | 2012-12-27 |
20120327969 | TEST METHOD AND DEVICE FOR TESTING HEAT SINK - A test device for testing a heat sink including a plurality of fasteners is provided. Each fastener includes a screw and a spring sleeved on the screw. The test device includes a base, a heater arranged on the base, and a temperature sensor staying in contact with the heater and configured to detect a temperature of the heater. A timer counts a time duration during which the temperature of the heater changes from a first value to a second value. The heat sink is connected to the base by the screws and resides on the heater. | 2012-12-27 |
20120327970 | Compensation of Stray Light Interference in Substrate Temperature Measurement - This disclosure describes systems, methods, and apparatuses for making a non-contact measurement of a substrate in a plasma processing chamber that accounts for stray blackbody radiation. In particular, a photocurrent is calculated that can be attributed to the stray blackbody radiation based upon a temperature of the stray blackbody radiation, a reflectance of a target substrate, and a temperature of the substrate. Knowing the photocurrent attributable to the stray blackbody radiation, a non-contact temperature measurement can be made, and the photocurrent attributable to the stray blackbody radiation can be subtracted out to arrive at a more accurate non-contact substrate temperature measurement. | 2012-12-27 |
20120327971 | IMMERSION TYPE SENSOR FOR MEASURING TEMPERATURE - A device for measuring the temperature of molten metal irrespective of the nature of the metal, particularly, an immersion/contact type temperature sensing device involving optical fiber which can be universally used for different materials and would be adapted for safe and repetitive immersion in molten metal for measurement of molten metal temperatures and the like. The proposed immersion/contact type temperature sensing device involves combination two-color and multi-color pyrometric detection technique is capable of cost effective and discrete-time temperature measurement of molten metal. The advancement is thus directed to serve as a ready and fast accurate measurement of molten metal temperature and the like. | 2012-12-27 |
20120327972 | TEMPERATURE SENSOR - Provided is a low power consuming, highly precise, wide-range temperature sensor. The temperature sensor includes a current mirror, a first MOS transistor, and a second MOS transistor. The current mirror generates a first reference current in response to a particular current applied by a power voltage and a second reference current in response to the first reference current so as to output the first and second reference currents. The first MOS transistor includes a drain terminal D | 2012-12-27 |
20120327973 | ELECTRONIC COMPONENT, IN PARTICULAR CURRENT SENSOR - The invention relates to an electronic component ( | 2012-12-27 |
20120327974 | SPREAD SPECTRUM CLOCK GENERATORS AND ELECTRONIC DEVICES INCLUDING THE SAME - Spread spectrum clock generators and electronic devices including the same are provided. An electronic device may include a memory and a first circuit block configured to output a first spread spectrum clock signal and a first address for accessing the memory. The electronic device may include a second circuit block configured to operate in response to a second spread spectrum clock signal, and configured to output a second address for accessing the memory. The electronic device may include a spread spectrum clock signal generator configured to receive the first spread spectrum clock signal to generate the second spread spectrum clock signal. The memory may be configured to compare the first and second addresses to each other to output a clock generator control signal corresponding to a difference between the first and second addresses. | 2012-12-27 |
20120327975 | SYSTEMS AND METHODS FOR PULSE ROTATION MODULATION ENCODING AND DECODING | 2012-12-27 |
20120327976 | Method and Apparatus for Implementing Hybrid Rake/Equalizer Receiver for Spread Spectrum Systems - A UE of a spread spectrum wireless telecommunications system includes a network interface unit which receives multiple path energies of a wireless signal. The UE includes a rake receiver in communication with the network interface unit. The UE includes an equalizer in communication with the network interface unit, either the rake receiver or the equalizer processes the signal based on a predetermined criteria. A method of maintaining performance of a user equipment (UE) in a spread spectrum wireless telecommunications system includes the steps of receiving multiple path energies of a wireless signal at a network interface unit of the UE. There is the step of processing the signal with either a rake receiver of the UE in communication with the network interface unit or an equalizer of the UE in communication with the network interface unit based on a predetermined criteria. | 2012-12-27 |
20120327977 | FAST BLIND CHANNEL SEARCH - A method for searching a digital transmission having unknown carrier and symbol frequencies in a modulated reception signal, includes performing successive trials of several carrier and symbol frequencies, using decreasing values of the symbol frequency, demodulating the reception signal with the tried carrier frequency, filtering the demodulated signal in a band having a width corresponding to the currently tried symbol frequency, and producing samples of the filtered signal. For each currently tried symbol frequency, forming a complex indicator having a real component and an imaginary component established from the successive samples of the filtered signal such that they have cyclostationary properties and that one of the components tends to cancel when the other component tends towards a relative maximum, building the spectrum of the variation of the complex indicator, searching for a singular spike in the spectrum, and determining the real symbol frequency from the frequency of the spike. | 2012-12-27 |
20120327978 | CONNECTORS FOR COMMUNICATION, COMMUNICATION HARNESS, AND COMMUNICATION SYSTEM - A connector for communication contains a connecting section, which is connected to communication line; and a network controller, which is connected internally to the connecting section, interprets a designated protocol and controls communication; and a transceiver, which makes possible transmission and receipt on the physical layer of the communication line. | 2012-12-27 |
20120327979 | Digital Repeater Module and Method for Relaying Digital Data - There is provided a digital repeater module and method for relaying digital data. The digital repeater module comprises a data reception unit configured to receive digital data from several broadcast devices concurrently, a data transmission unit configured to transmit digital data using a multiple transmission protocols concurrently, and a routing application. The routing application can receive digital data through the data reception unit, identify available data paths for relaying the digital data to desired destinations, and determine transmission metrics for each of the available data paths for relaying the digital data to the desired destinations. The routing application can also select data paths for transmission based on the determined transmission metrics, and transmit the digital data using the selected data paths through the data transmission unit. There is also provided a method for resolving assignment of limited broadcast frequencies using the digital repeater module. | 2012-12-27 |
20120327980 | Method of Signaling Particular Types of Resource Elements in a Wireless Communication System - A wireless communication terminal including a transceiver coupled to a processor and corresponding methods are disclosed. The processor is configured to determine resource elements that carry data intended for the terminal from a set of allocated resource elements that carry data intended for the terminal excluding at least resource elements associated with a first set of one or more resource elements of a particular type that are shifted relative to a known reference signal pattern. The processor is also configured to decode the resource elements that carry the data intended for the terminal based on the resource elements that carry the data intended for the terminal. | 2012-12-27 |
20120327981 | Method of Signaling Particular Types of Resource Elements in a Wireless Communication System - A wireless communication terminal including a processor coupled to a transceiver and corresponding methods are disclosed. The transceiver is configured to receive information of a set of allocated resource elements carrying data intended for the terminal and information of a set of zero power reference signal configurations where each zero power reference signal configuration corresponds to one or more resource elements devoid of signal transmission from one or more cells. The processor is configured to derive resource elements that carry data intended for the terminal excluding at least the resource elements associated with each of the zero power reference signal configurations and to decode resource elements that carry data intended for the terminal based on deriving the resource elements that carry the data intended for the terminal. | 2012-12-27 |
20120327982 | METHOD AND APPARATUS FOR SIGNAL DETECTION IN MULTIPLE INPUT MULTIPLE OUTPUT - Disclosed is a method for detecting a multiple input multiple output (MIMO) transmission signal. The method for detecting a signal in multiple input multiple output (MIMO) transmission includes: acquiring M receiving symbols through each of the M receive antennas; determining a plurality of M-th candidate symbols to be determined as recovery symbols of an M-th receiving symbol received through the M-th receiving antenna among the M receive antennas; grouping the plurality of candidate symbols into N groups; and determining a plurality of M−1-th candidate symbols to be determined as recovery symbols of an M−1-th receiving symbol received through an M−1-th receive antenna for each of the N groups. | 2012-12-27 |
20120327983 | TRANSMITTER APPARATUS, TRANSMISSION METHOD AND TRANSMISSION SYSTEM - There is a problem that if a transmitter apparatus having an adaptive modulation function is to be configured to divide data for transmission, the structure of the transmitter apparatus will be complicated and the cost thereof will be raised. In order to solve this problem, a transmitter apparatus comprises: a dividing means for dividing input data into a plurality of pieces of data; a plurality of transmitting means for transmitting the pieces of data as divided to respective transmission paths; and a modulation scheme deciding means for deciding, from among modulation schemes associated with the conditions of the transmission paths, a modulation scheme, which is to be used by the transmission means, such that the difference in transmission speed between the pieces of data transmitted by the plurality of transmitting means is within a predetermined range. | 2012-12-27 |
20120327984 | METHODS FOR DETECTION OF FAILURE AND RECOVERY IN A RADIO LINK - A method, telecommunication apparatus, and electronic device detect a status of a radio link. A transceiver | 2012-12-27 |
20120327985 | COMMUNICATIONS SYSTEM INCLUDING JAMMER USING CONTINUOUS PHASE MODULATION (CPM) AND ASSOCIATED METHODS - A communications system includes a target receiver having a passband and configured to receive an intended signal within the passband. The communications system also includes a jammer configured to jam the target receiver from receiving the intended signal. The jammer has at least one antenna, a jammer receiver coupled to the at least one antenna, a jammer transmitter coupled to the at least one antenna, and a controller configured to cooperate with the jammer receiver. The controller is configured to detect the intended signal and to generate an interfering signal comprising a continuous phase modulation (CPM) waveform having a constant envelope so that the interfering signal at least partially overlaps the passband of the target receiver. | 2012-12-27 |
20120327986 | CROSSTALK MITIGATION IN TRANSMISSION SYSTEM - Representative implementations of devices and techniques communication circuitry configured to communicate via a plurality of transmission channels, the communication circuitry includes crosstalk reduction circuitry to reduce crosstalk for a part of the plurality of transmission channels, the part of the plurality of transmission channels is selected from the plurality of transmission channels depending on an error threshold value. | 2012-12-27 |
20120327987 | EXTENDED DURATION PHY HEADER FOR PLC - A method of powerline communications (PLC) over a PLC channel including a first node and at least a second node utilizes an algorithm that compiles frames having extended duration physical layer (PHY) headers. A duration or estimated duration of a null of the PLC channel is provided. An extended duration PHY header is compiled including a plurality of symbols and bits having a time duration of the PHY header of at least fifty percent (50%) more than the duration or estimated duration of the null. The compiling includes symbol repetition of at least a portion of the plurality of symbols or bit repetition of at least a portion of the plurality of bits. The first node transmits a frame including a preamble and the extended duration PHY header over the PLC channel to at least the second node. | 2012-12-27 |
20120327988 | INGRESS NOISE LOCALIZATION IN A CABLE NETWORK - Ingress noise labeling tags are coupled into the signal path at various nodes of a cable network. The tags imprint a unique electric signature into a local ingress noise, making the noise identifiable at the headend of the network. In one embodiment, tags do not require external control signals to operate, the electrical response of the tags being determined by present and/or past magnitudes of the return path signal. Advantageously, such tags can be made entirely passive, not requiring a control signal or an external source of electrical power. | 2012-12-27 |
20120327989 | SMART FEED LINE AUTOMATION SYSTEM BASED ON 10KV CARRIER COMMUNICATION - An embodiment of the present invention provides a smart feed line automation system based on 10 kV carrier communication. The system monitors smart switches of the line via 10 kV carrier communication, detects smart transformers, and calls up and returns centralized meter-reading information of smart transformer region. Furthermore, the detection of the state of a 10 kV power line may realize real-time monitoring of the temperature, insulating level and change of voltage and current of a 10 kV aerial line and cable line, and realize alarm for an abnormal state and fault information report, so as to rapidly identify, position, isolate and recover the fault. | 2012-12-27 |
20120327990 | SIGNAL MEASUREMENT DEVICE, SIGNAL MEASUREMENT METHOD, AND RECORDING MEDIUM - In a signal measurement device, a plurality of mixers output a signal having a frequency equal to a difference between two input frequencies, and a single local signal source feeds a common local signal input to the plurality of mixers. A difference measurement unit measures a level and a phase difference between outputs of the plurality of mixers if a common correction signal input is fed to the plurality of mixers, and a level/phase measurement unit measures the level and the phase of the output of the plurality of mixers if inputs of signal to be measured common in frequency are fed to the plurality of mixers. A difference correction unit corrects a measurement result of the level/phase measurement unit based on a measurement result of the difference measurement unit if a common input of signal to be measured is fed to the plurality of mixers. | 2012-12-27 |
20120327991 | METHOD FOR CHANNEL ESTIMATION - The invention relates to a method of estimating BEM coefficients of the Channel taps of a transmission Channel of an OFDM System having a given pilot arrangement, comprising, at the receiver side of the transmission Channel, the Steps of a) subsampling a received OFDM symbol in the frequency domain into a set of subsequences, b) inverse Fourier transforming each subsequence into a transformed subsequence, and c) estimating Fourier coefficients of a truncated Fourier series expansion model of the Channel taps from the set of transformed subsequences. | 2012-12-27 |
20120327992 | RECEIVER AND METHOD OF RECEIVING SIGNAL FOR REDUCING INTERSYMBOL INTERFERENCE - A synchronization method for a receiver includes generating, by a beacon detector, an operating signal by performing a logic operation on a baseband signal, and calculating, by a coarse sync block, a coarse FFT window start position value where a signal-to-noise ratio becomes maximized by estimating a noise level of the operating signal. | 2012-12-27 |
20120327993 | Adaptive Equalization Using Correlation Of Edge Samples With Data Patterns - An integrated receiver supports adaptive receive equalization. An incoming bit stream is sampled using edge and data clock signals derived from a reference clock signal. A phase detector determines whether the edge and data clock signals are in phase with the incoming data, while some clock recovery circuitry adjusts the edge and data clock signals as required to match their phases to the incoming data. The receiver employs the edge and data samples used to recover the edge and data clock signals to note the locations of zero crossings for one or more selected data patterns. The pattern or patterns may be selected from among those apt to produce the greatest timing error. Equalization settings may then be adjusted to align the zero crossings of the selected data patterns with the recovered edge clock signal. | 2012-12-27 |
20120327994 | METHOD FOR CHANNEL EQUALIZATION - A method of equalizing a signal received over transmission channel defined by BEM coefficients of a basis expansion model of its channel taps, comprising the step of approximately solving the relation (I) for x[n] by an iterative method, n being the index of time, y[n] being the received signal, x[n] being the equalized signal, B | 2012-12-27 |
20120327995 | Pipelining and Sub-Rate Operation for Memory Links - A method for sending data to a memory chip includes receiving data at a data transmitter disposed on a memory hub chip, applying Tomlinson-Harashima precoding (THP) equalization to the data prior to transmitting the data; and transmitting the data from the transmitter to a memory chip. | 2012-12-27 |
20120327996 | Adaptive Language Descriptors - A disclosed methodology for processing language descriptors includes receiving streaming multimedia content that includes initial language descriptors. Portions of the multimedia content stream are encapsulated into packets that include an indication of the initial language descriptors. Later in time, further language descriptors are received with the streaming multimedia content. As a series of packets created from the multimedia content stream are processed, the indication of received language descriptor is adapted to account for any change in the language of audio tracks received with the streaming multimedia content. | 2012-12-27 |
20120327997 | Video Coding - A video coding method includes for each target image portion to be encoded, selecting a preferred one of a set of encoding modes by optimizing a function comprising an estimate of distortion and a measure of bit rate required to encode the target image portion, the encoding modes comprising at least an intra frame mode and an inter frame mode; and transmitting the encoded video stream over a lossy channel. The estimate of distortion is based on a contribution from possible new loss over the channel comprising possible loss of the target block, and on a contribution from possible past loss over the channel comprising possible loss in a history of the encoded video stream upon which decoding of the target portion depends. The method includes accumulating the contribution from past loss over time, such that the estimate of distortion grows irrespective of the contribution from new loss. | 2012-12-27 |
20120327998 | Video Coding - A method of encoding an outgoing video stream comprising a plurality of frames, each frame comprising a plurality of image portions, the method including for each target image portion to be encoded, selecting a preferred one of a set of encoding modes by optimizing a function comprising an estimate of distortion and a measure of bit rate required to encode the target image portion; encoding the target image portion into the outgoing video stream using the selected encoding mode; and transmitting the encoded outgoing video stream over a lossy channel. The estimate of distortion comprises a first term representing source coding distortion, and a bias term representing an estimate of distortion that would be experienced due to loss over said channel. The bias term is determined based on a trained parameter trained based on a sample video stream. | 2012-12-27 |
20120327999 | Encoding mode values representing prediction modes - A method of encoding a mode value representing a prediction mode comprises selecting from among at least first and second encoding processes an encoding process to apply to the mode value to be encoded. The first encoding process comprises encoding first information indicating a predetermined relationship between the mode value to be encoded and at least one predetermined value. The second encoding process comprises encoding second information representing the mode value to be encoded. The encoding by the second encoding process takes account of the outcome of at least one prior first encoding process. This can be achieved by updating mode probabilities based on the outcome of the first, as well as the second, encoding process. Such a method creates a link between the first and second encoding processes and can improve coding efficiency. | 2012-12-27 |
20120328000 | Video Decoding System Supporting Multiple Standards - System and method for decoding digital video data. The decoding system employs hardware accelerators that assist a core processor in performing selected decoding tasks. The hardware accelerators are configurable to support a plurality of existing and future encoding/decoding formats. The accelerators are configurable to support substantially any existing or future encoding/decoding formats that fall into the general class of DCT-based, entropy decoded, block-motion-compensated compression algorithms. The hardware accelerators illustratively comprise a programmable entropy decoder, an inverse quantization module, a inverse discrete cosine transform module, a pixel filter, a motion compensation module and a de-blocking filter. The hardware accelerators function in a decoding pipeline wherein at any given stage in the pipeline, while a given function is being performed on a given macroblock, the next macroblock in the data stream is being worked on by the previous function in the pipeline. | 2012-12-27 |
20120328001 | COMPRESSING IMAGE DATA - Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block. | 2012-12-27 |
20120328002 | Video Coding - A method of encoding a video stream comprising: for each of a plurality of first image portions to be encoded in an outgoing video stream, selecting a preferred one of a set of potential encoding modes using a first process comprising an estimation of distortion of the first image portion and a measure of bit rate required to encode the first image portion for each of the first image portion's potential encoding modes; encoding each of the first image portions of the outgoing stream using the respective selected encoding mode; for each of a plurality of second image portions of a video stream, applying a second process comprising at least an estimation of distortion of the second image portion; and using an output of the second process resulting from the second image portions to bias the first process in said selection of the encoding modes for the first portions. | 2012-12-27 |
20120328003 | MEMORY EFFICIENT CONTEXT MODELING - In an example, aspects of this disclosure relate to a method of coding video data that includes determining context information for a block of video data, where the block is included within a coded unit of video data, where the block is below a top row of blocks in the coded unit, and where the context information does not include information from an above-neighboring block in the coded unit. That method also includes entropy coding data of the block using the determined context information. | 2012-12-27 |
20120328004 | QUANTIZATION IN VIDEO CODING - In an example, aspects of this disclosure relate to a method of coding video data that includes identifying a plurality of quantization parameter (QP) values associated with a plurality of reference blocks of video data. The method also includes generating a reference QP for the plurality of reference blocks based on the plurality of QPs. The method also includes storing the reference QP, and coding a block of video data based on the stored reference QP. | 2012-12-27 |
20120328005 | CONSTRUCTION OF COMBINED LIST USING TEMPORAL DISTANCE - In one embodiment, a method receives a current picture of video content. The method then determines a set of reference pictures for the current picture and a temporal distance from the current picture for each of the set of reference pictures. A combined list of reference pictures in the set of reference pictures is determined where an order of pictures in the combined list is based on the temporal distance for each of the set of reference pictures to the current picture. The method then uses the combined list to perform temporal prediction for the current picture. | 2012-12-27 |
20120328006 | IMAGE CODING APPARATUS AND IMAGE CODING METHOD - At least one exemplary embodiment is directed to an image coding apparatus configured to encode moving image data including: a coding unit configured to encode each picture in the moving image data in a unit of a first block; a luminance change detection unit configured to divide the moving image data into a plurality of second blocks and to detect a luminance change block in which a luminance change occurred from the plurality of the second blocks in one picture; and a code amount adjustment unit configured to increase an amount of code allocated to the first block if the first block corresponds to the luminance change block detected by the luminance change detection unit. | 2012-12-27 |
20120328007 | SYSTEM AND METHOD FOR OPEN LOOP SPATIAL PREDICTION IN A VIDEO ENCODER - Presented herein are systems, methods, and apparatus for encoding video data. In one implementation the method and system classify at least one macroblock of at least one original reference picture and select an encoding technique at least in part based on the classification of the at least one macroblock. | 2012-12-27 |
20120328008 | SIGNAL PROCESSING DEVICE AND MOVING IMAGE CAPTURING DEVICE - A frame skipping process suited to a scene is achieved by providing an encoder which encodes input image data, an encoding determination unit which compares image movement information with a threshold to determine whether or not encoding is to be performed, a frame skipping controller which performs a frame skipping control if encoding is not to be performed, and a threshold correction unit which corrects the encoding determination threshold based on the result of the encoding process. The image movement information used in the encoding determination unit is any one or a combination of pixel movement information obtained by a representative point matching scheme performed by a pixel movement calculation unit, angular velocity sensor information obtained from a lens controller, and frequency information obtained from an image processor. | 2012-12-27 |
20120328009 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS - An image decoding method of decoding, on a block-by-block basis, image data included in a coded stream includes: deriving candidates for an intra prediction mode to be used for intra prediction for a decoding target block, the number of the candidates constantly being a plural number; obtaining, from the coded stream, an index for identifying one of the derived candidates for the intra prediction mode; and determining, based on the obtained index, one of the derived candidates for the intra prediction mode as the intra prediction mode to be used for intra prediction for the decoding target block. | 2012-12-27 |
20120328010 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS - The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type. | 2012-12-27 |
20120328011 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS - The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is one of “ref_idx_l0” and “ref_idx_l1”. | 2012-12-27 |
20120328012 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS - The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and to the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is “inter_pred_flag”. | 2012-12-27 |
20120328013 | Luma-Based Chroma Intra-Prediction for Video Coding - A method for luma-based chroma intra-prediction in a video encoder or a video decoder is provided that includes down sampling a first reconstructed luma block of a largest coding unit (LCU), computing parameters α and β of a linear model using immediate top neighboring reconstructed luma samples and left neighboring reconstructed luma samples of the first reconstructed luma block and reconstructed neighboring chroma samples of a chroma block corresponding to the first reconstructed luma block, wherein the linear model is Pred | 2012-12-27 |
20120328014 | VIDEO CODING DEVICE, VIDEO CODING METHOD THEREOF, VIDEO DECODING DEVICE, AND VIDEO DECODING METHOD THEREOF - The present disclosure provides a video encoding apparatus and method and a video decoding apparatus and method. The video encoding apparatus, includes: a block mode determiner for determining a block mode of a current block; an NCI block intra encoder responsive if the block mode of the current block determined by the block mode determiner is an intra mode and neighboring blocks of the current block include an NCI block, for encoding the NCI block through an intra prediction of the NCI block; and a current block intra encoder responsive if the block mode of the current block determined by the block mode determiner is the intra mode and the neighboring blocks of the current block include the NCI block, for encoding the current block through an intra prediction of the current block. | 2012-12-27 |
20120328015 | IMAGE ENCODING/DECODING METHOD AND DEVICE - The present disclosure relates to a video encoding/decoding apparatus and method, in which skip information indicating whether a block is a skip block is encoded, partition information of the block and skip motion information of the block are encoded or prediction information of the block containing the partition information of the block and intra prediction mode information or motion information are encoded according to the skip information, residual signal information of the block is predictive-encoded based on the prediction information and the transform information, and an encoded signal is reconstructed. The method and the apparatus can improve the video compression efficiency by efficiently encoding the encoding information used for the video encoding and selectively using various encoding methods and decoding methods in encoding the video. | 2012-12-27 |