21st week of 2013 patent applcation highlights part 37 |
Patent application number | Title | Published |
20130128884 | SYSTEM TO IMPROVE AN ETHERNET NETWORK - A system to improve a Fibre Channel over Convergence Enhanced Ethernet (FCoCEE) network may include a sender in an FCoCEE network in which data packets having different data link layer structures are transmitted by the sender on a single data link. The system may also include a receiver to receive the data packets at the data link layer and to transmit an ACK and/or NAK in response to a sequence number in the data packets. The system may further include a replay buffer to retransmit the data packets where the replay buffer is sized by the length of the data link, data rate of the data link, the ACK and/or NAK processing time at either the sender and/or the receiver, and/or a threshold time for transmission and/or reception of the data packets. | 2013-05-23 |
20130128885 | DATA PATH ACCELERATION USING HW VIRTUALIZATION - A processing core includes a packet classifier, implemented in a single processing core, configured to classify incoming data packets into first data packets of a known data packet flow and into second data packets of an unknown data packet flow, a first path thread, implemented in the single processing core, configured to process ones of the first data packets at least by forwarding the first data packets to a destination that corresponds to a previously determined destination associated with the known data packet flow, and a second path thread, implemented in the single processing core, configured to process a received second data packet at least to determine a new data packet flow for the second data packet. | 2013-05-23 |
20130128886 | Replication Management for Remote Multicast Replication Network - A router receives a leave message from a host on a subscriber circuit. The leave message indicates a request to stop receiving a multicast stream that is associated with a group object. The interface between the router and network elements including, but not limited to, a remote multicast replication interface. A group specific query is then sent on the subscriber circuit, and is directed to hosts on the subscriber circuit and regards only the multicast group of the received request. Next the group object association with the subscriber circuit is removed from the record at the router if, in response to the group specific query, no host of the subscriber circuit reports receiving the traffic stream corresponding to the multicast group identified in the leave message. | 2013-05-23 |
20130128887 | Admission Control for Receiving Traffic at Hosts - A router is coupled to sources of multicast streams and to multicast consumer hosts through one or more network elements, for managing multicast streams sent to hosts through the one or more network elements using subscriber circuits. The interface between the router and the network elements includes, but is not limited to, a remote multicast replication interface. Reports are received from a host on a subscriber circuit. The subscriber circuit is coupled between the router and the host. The report indicates a request to receive a multicast stream that is associated with a group object. A reference counter associated with the group object is incremented and the requested multicast stream is added to a remote multicast replication circuit if the reference counter transitions from zero upon incrementing. | 2013-05-23 |
20130128888 | METHOD, SYSTEM AND ROUTER FOR CHANGING APPLICATION IN BGP SESSION - A method and system for changing an application in a BGP session are provided. The method may be applied by a first router, in a session established between the first router and a second router, and in which an application is enabled. The method comprises the first router changing a local capability value to support a changed application and changing an address family according to the changed application. | 2013-05-23 |
20130128889 | METHOD AND APPARATUS FOR CONVERTING A MULTICAST SESSION TO A UNICAST SESSION - A method and apparatus are described including receiving a data Packet having a data packet header, storing the received data packet as shared payload, determining if the received data packet is a first data packet, initializing a sequence starting number responsive to the determination, generating a new data packet header, calculating a sequence number for the received data packet using the sequence starting number, inserting the new sequence number into the new data packet header, unicasting the new data packet header and the shared payload to a plurality of client devices. | 2013-05-23 |
20130128890 | Selecting a Link of a Link Group based on Contents of a Concealed Header - Methods, devices, and systems for selecting a link of a link group based on contents of a concealed header are disclosed. A network node operating method includes a first network node receiving a packet and concluding that a link group connecting the first network node to a second network node will forward the packet to the second network node. The method further includes determining that the packet includes a tunnel header and an original header concealed by the tunnel header, selecting one link from among a set of parallel links of the link group based at least on one or more fields of the concealed original header, and forwarding the packet to the second network node via the selected link. | 2013-05-23 |
20130128891 | CONNECTION IDENTIFIER ASSIGNMENT AND SOURCE NETWORK ADDRESS TRANSLATION - A controller of a network control system for configuring several middlebox instances is described. The middlebox instances implement a middlebox in a distributed manner in several hosts. The controller assigns a first set of identifiers to a first middlebox instance that associates an identifier in the first set with a first packet. The controller assigns a second set of identifiers to a second middlebox instance that associates an identifier in the second set with a second packet. | 2013-05-23 |
20130128892 | METHOD AND SYSTEMS FOR ROUTING PACKETS FROM A GATEWAY TO AN ENDPOINT - A method for routing packets from a gateway to an endpoint includes the step of associating a private internet protocol (IP) address with an endpoint having a public IP address. A packet addressed to the private IP address of the endpoint is captured. A policy is applied to the packet. The packet is transmitted to the public IP address of the endpoint, responsive to the application of the policy to the packet. | 2013-05-23 |
20130128893 | METHOD AND SYSTEM FOR SLIDING WINDOW PROCESSING OF A DATAGRAM - A method for sliding window processing of a datagram split into packets, may include processing entire strings of adjacent consecutive packets of the datagram regardless the order of the packets using parallel processors. The method may also include processing adjacent ends of the strings of the adjacent consecutive packets while maintaining the order of the adjacent ends to correspond to the order of the consecutive packets. | 2013-05-23 |
20130128894 | Registration and Data Exchange Using Proxy Gateway - A system and method is presented for broadcasting from a utility node a request for network routing information, receiving at the utility node routing information from neighboring utility nodes in response to the broadcast request, and registering the utility node with an access point that provides ingress and egress to and from the network. A node is selected to function as a proxy gateway for one or more other nodes in the network. A new utility node becomes connected to one or more utility networks by registering with the proxy gateway. The proxy gateway transmits registration requests and registration information from each node to a back office server and/or a Domain Name Server via an access point for which the proxy gateway functions as its proxy. | 2013-05-23 |
20130128895 | FRAME TRANSMISSION AND COMMUNICATION NETWORK - Exemplary embodiments are directed to a communication network interconnecting a plurality of synchronized nodes, where regular frames including time-critical data are transmitted periodically or cyclically, and sporadic frames are transmitted non-periodically or occasionally. For example, each node can transmit a regular frame at the beginning of a transmission period common to, and synchronized among, all nodes. Another node then receives regular frames from its first neighboring node, and forwards the frames within the same transmission period and with the shortest delay, to a second neighboring node. Furthermore, each node actively delays transmission of any sporadic frame, whether originating from an application hosted by the node itself or whether received from a neighboring node, until forwarding of all received regular frames is completed. | 2013-05-23 |
20130128896 | NETWORK SWITCH WITH EXTERNAL BUFFERING VIA LOOPAROUND PATH - Described embodiments process data packets received by a network switch coupled to an external buffering device. The network switch determines a queue of an internal buffer of the network switch associated with a flow of the received packet and determines whether the received packet should be forwarded to the external buffering device. If the received packet should be forwarded to the external buffering device, the network switch sets an external buffering active indicator indicating that the network switch is in an external buffering mode for the flow, tags the received packet with metadata, and forwards the packet to the external buffering device. The external buffering device stores the forwarded packet in a queue of a memory of the external buffering device corresponding to the tagged metadata of the forwarded packet. The network switch processes packets stored in the internal buffer of the network switch. | 2013-05-23 |
20130128897 | SYSTEM AND METHOD FOR SCALABLE MULTIFUNCTIONAL NETWORK COMMUNICATION - A system and method for scalable multifunctional network communication between presentation devices and service providers are disclosed. A group of consumer premise equipment (CPE) units are coupled to the presentation devices, and a headend control computer receives upstream messages from the CPE units and for sending downstream messages to the CPE units. A group of service provider control subsystems interface between the headend control computer and the service providers. The head end control computer receives messages from the CPE units and transports them to the service provider control subsystems, and the headend control computer receives messages from the service provider control subsystems and transports them to the CPE units. | 2013-05-23 |
20130128898 | SYSTEM AND METHOD FOR RETRANSMITTING PACKETS OVER A NETWORK OF COMMUNICATION CHANNELS - System and methods for transmitting packets over a network are provided. A system includes a network access coordinator (NAC) configured to communicate with first and second nodes via a network backbone. The NAC is configured to coordinate access of the first and second nodes to the network backbone. The NAC is configured to receive, from the first node in a first time period, a first reservation request to transmit a first packet to the second node. The NAC is configured to allocate, in response to the first reservation request, a first slot in a second time period for the first node to transmit the first packet to the second node. The NAC is configured to allocate a second slot for the second node to transmit, to the first node, a first reply that includes an indicator of whether the second node received the first packet. | 2013-05-23 |
20130128899 | Method and Bus Connection Unit for Unambiguously Waking Users of a Bus System - A method and a bus connection unit for selectively waking participants of a bus system in an idle state, the participants not in the idle state exchanging messages via the bus using a serial communication protocol, the messages characterized by a leading identifier, the participants not in the idle state deciding based on the identifier whether they receive the message, the messages being evaluated by the participants in the idle state in at least three phases, a number of signal properties, edges and/or edge changes being determined in a first phase, a sequence of time intervals between signal properties, edges and/or edge changes being determined in a second phase, a wake pattern being determined from the serial signal sequence of the message in a third phase, and participants in the idle state leaving the idle state as a function of the items of information determined during the three phases. | 2013-05-23 |
20130128900 | PACKET PROCESSOR AND METHOD FOR PROCESSING PACKETS BY MEANS OF INTERNAL CONTROL PACKETS - A packet processor for processing an input packet includes an information generator for generating process control information for processing the input packet, an internal packet generator for receiving the input packet as an packet to be processed and adding the process control information to the packet to be processed to produce an internal packet, an internal packet processor for processing the internal packet supplied from the internal packet generator on the basis of the process control information added to the internal packet, and a packet transmitter for extracting an output packet from the internal packet processed by the internal packet processor to transmit the output packet. The packet processor can reduce the amount of communication between modules even when the packet processor includes plural modules. | 2013-05-23 |
20130128901 | LAYER 1 FRAME CONSTRUCTION - A method includes appending, by a network device, a first layer | 2013-05-23 |
20130128902 | Method and Apparatus for Compressing Communication Packets - Communication apparatus and methods of transmitting data in a lossless compressed form over non-reliable communication links with very low complexity and high flexibility. The communication apparatus and methods operate by interleaving the compressed data utilizing a plurality of compression/decompression devices in an interleaved fashion. | 2013-05-23 |
20130128903 | PACKET-BASED TIMING MEASUREMENT - A slave communication device may transmit a packet to the master communication device, with the packet including a transmission time field and a correction field. The transmission time field may contain a value indicative of an approximate time of transmission of the packet by the slave communication device, and the correction field may contain a value indicative of a difference between the approximate time of transmission and an actual time of transmission of the packet by the slave communication device. | 2013-05-23 |
20130128904 | FIBER LASER PUMPING CONFIGURATION AND METHOD - The invention is an apparatus and method for free space pumping of active double-clad fiber based lasers and amplifiers. The apparatus comprises a laser emitting a signal laser beam; an active double-clad fiber having a core defining an optical axis of the apparatus and a pump cladding defining a cone of numerical aperture; an optical arrangement directing the signal laser beam along the optical axis through the core of the active double-clad fiber; at least one pump source emitting a pump beam; at least one delivery means coupling the pump beam to the pump cladding of the active double-clad fiber; and an optical arrangement coupling the amplified signal laser beam exiting the active double-clad fiber out of the apparatus. | 2013-05-23 |
20130128905 | BROADBAND LASER SOURCE FOR LASER THERMAL PROCESSING AND PHOTONICALLY ACTIVATED PROCESSES - A laser that emits light at all available frequencies distributed throughout the spectral bandwidth or emission bandwidth of the laser in a single pulse or pulse train is disclosed. The laser is pumped or seeded with photons having frequencies distributed throughout the superunitary gain bandwidth of the gain medium. The source of photons is a frequency modulated photon source, and the frequency modulation is controlled to occur in one or more cycles timed to occur within a time scale for pulsing the laser. | 2013-05-23 |
20130128906 | LASER OSCILLATION APPARATUS - Provided is a laser oscillation apparatus capable of stabilizing resonance even when finesse of an optical resonator is increased and generating stronger laser light than that of a traditional apparatus by accumulating laser light in the optical resonator. The laser oscillation apparatus includes a laser light source which generates laser light for excitation, a fiber amplifier which generates laser light with a desired wavelength when the laser light generated at the laser light source for excitation is supplied, an optical resonator, an optical isolator which is interposed between the optical resonator and the fiber amplifier and which guides the laser light from the fiber amplifier to one side of the optical resonator while blocking laser light in the opposite direction, a circulation optical path which accelerates resonance as introducing laser light emitted from the other side of the optical resonator and returning the laser light to the optical resonator via the fiber amplifier and the optical isolator, and a modulator which performs amplitude modulation on the laser light in the circulation optical path. | 2013-05-23 |
20130128907 | Coherent Micro-mixer - A coherent micro-mixer provides a 6-port device having two input ports four output ports. A signal light wave is input into one input port and a reference light wave is input into another input port. The four outputs from the output ports combine to produce interference between the two input light beams, with various relative phase shifts. | 2013-05-23 |
20130128908 | DIODE PUMPED SOLID STATE OPTO-MECHANICALLY OPTIMIZED GREEN LASER - A unique physical design of 532 nm Diode Pumped Solid State (DPSS) laser elements to achieve independent crystal phasing (rotation), spacing and output coupler (OC) alignment in a robust small package is provided. | 2013-05-23 |
20130128909 | Edge-Emitting Semiconductor Laser - An edge-emitting semiconductor laser is specified. A semiconductor body includes an active zone suitable for producing electromagnetic radiation. At least two facets on the active zone form a resonator. At least two contact points are spaced apart from one another in a lateral direction by at least one intermediate region and are mounted on an outer face of the semiconductor body. | 2013-05-23 |
20130128910 | LASER LIFT-OFF APPARATUS - In order to separate a material layer from a substrate at the boundary face between the substrate and the material layer, a laser light is applied to a workpiece from the substrate side through a mask, the work having the material layer formed on the substrate. The laser beam is split into a plurality of small area laser light by the mask | 2013-05-23 |
20130128911 | DIODE LASER AND METHOD FOR MANUFACTURING A HIGH-EFFICIENCY DIODE LASER - A diode laser having aluminum-containing layers and a Bragg grating for stabilizing the emission wavelength achieves an improved output/efficiency. The growth process is divided into two steps for introducing the Bragg grating, wherein a continuous aluminum-free layer and an aluminum-free mask layer are continuously deposited after the first growth process such that the aluminum-containing layer is completely covered by the continuous aluminum-free layer. Structuring is performed outside the reactor without unwanted oxidation of the aluminum-containing semiconductor layer. Subsequently, the pre-structured semiconductor surface is further etched inside the reactor and the structuring is impressed into the aluminum-containing layer. In this process, so little oxygen is inserted into the semiconductor crystal of the aluminum-containing layers in the environment of the grating that output and efficiency of a diode laser are not reduced as compared to a diode laser without grating layers that was produced in an epitaxy step. | 2013-05-23 |
20130128912 | CRUCIBLE HAVING A POLYGONAL OPENING - The invention relates to an arc melted silica crucible having a polygonal opening, in particular square or rectangular, and its method of fabrication, which comprises preforming the silica powder in a hollow mold having a polygonal opening, said mold being provided with a multiplicity of channels passing through its bottom and its walls, said channels being distributed over its whole internal surface, to constitute a preform, then melting the silica by an electric arc inside the preform, sucking the gases through the mold and the preform, generating a gas speed of at least 0.15 m/second at every point of the inner surface of the preform at the onset of the melting. | 2013-05-23 |
20130128913 | ELECTRICALLY POWERED INDUSTRIAL FURNACES HAVING MULTIPLE INDIVIDUALLY CONTROLLABLE POWER SUPPLIES AND SHORTENED CABLING REQUIREMENTS - An electrically powered industrial furnace uses a number of distributed, highly compact power supplies physically located generally immediately adjacent to each of the furnace electrical terminals, so that cabling and bus-bars can essentially be eliminated. In addition, each heating element has its own dedicated and independently controllable power supply which can automatically adjust for varying resistances in the single connected heating element and/or short cabling, to achieve a precisely uniform temperature within the furnace. | 2013-05-23 |
20130128914 | THERMAL TEST APPARATUS AND METHOD - Thermal test apparatus comprising a specimen supported by a fixture, a thermal shroud comprising a flexible insulating fabric forming an enclosure around at least a portion of the specimen, and a temperature controlled air supply connected to an opening formed in the enclosure for delivering a supply of temperature controlled air into the enclosure. Also, a method of conducting a thermal test. | 2013-05-23 |
20130128915 | TEMPERATURE CONTROL ELEMENT FOR HEATING AND RAPIDLY COOLING MEASUREMENT SAMPLES - A temperature control element for a measuring device for controlling the temperature of a measurement sample, comprising first and second heating elements delivering thermal energy to the measurement sample, and control means for controlling the heating of the measurement sample, wherein the first and second heating elements heat the measurement sample until a limit temperature has been reached, and wherein thermal resistivity between the first and second heating elements is increased starting at the limit temperature, and the control means disconnects the contact between the first and second heating elements when the limit temperature is reached. A cooling element withdraws thermal energy, and the control means controls cooling of the measurement sample, wherein thermal energy is withdrawn from measurement sample by bringing the cooling element closer to the shut-off of the first heating element, and interrupting the contact between the cooling element and the shut-off of the first heating element. | 2013-05-23 |
20130128916 | Device and Method for Measuring Dynamic Thermal Conductivity of Micro-Structure Fluid - A device and method for measuring dynamic thermal conductivity of micro-structure fluid. The device includes an upper fixing plate ( | 2013-05-23 |
20130128917 | Thermoelectric Component with Plasmonic Guide, Integrating a Device for Measuring the Power Coupled in the Guided Mode - A thermoelectric component comprises integrated into the component: a plasmonic waveguide, an exciter element for the guided plasmonic mode, a device for measuring the power dissipated during propagation along the plasmonic waveguide, characterized in that the measurement device comprises, associated with the plasmonic guide, a thermocouple junction with two electrodes, one of the electrodes including the plasmonic waveguide. | 2013-05-23 |
20130128918 | THERMAL RESISTANCE-BASED MONITORING OF COOLING OF AN ELECTRONIC COMPONENT - Monitoring of cooling of an electronic component is provided, which includes: determining a current thermal resistance associated with one or more of the electronic component, a heat sink coupled to the electronic component, or a thermal interface coupling the electronic component and the heat sink; and determining, by a processor, whether the current thermal resistance exceeds a set thermal resistance threshold, and responsive to the current thermal resistance exceeding the set thermal resistance threshold, indicating a thermal resistance fault. As an enhancement, rate of change over time of the thermal resistance is determined, and compared against a rate of change threshold, and if exceeding the threshold, a rate of change thermal resistance warning is provided. | 2013-05-23 |
20130128919 | FOOD TEMPERATURE PROBE - An exemplary embodiment of a temperature probe comprises an elongated shaft having a first portion and a second portion, the first portion being configured for insertion into a unit of food and the second portion being configured to extend outside of the unit of food. The probe further comprises at least two temperature sensors positioned at different longitudinal locations along the first portion of the shaft that are configured to measure temperatures of the unit of food at different locations within the unit of food while the unit of food is being processed thermally. The probe further comprises at least one ambient temperature sensor coupled to the shaft and configured to measure ambient temperature adjacent to the unit of food. | 2013-05-23 |
20130128920 | PILE SENSING DEVICE AND METHOD OF USING THE SAME - A system for monitoring the forming of a solid object having a sensor string positionable in a forming structure before the curing process and a communication line extending along a string axis between a first and second end. The string further including a plurality of sensors joined to the communication line between the ends and each sensor being mounted at a set position on the line. Each sensor having a sensor body and a sensor housing and the sensor body including an electrical connecter to electrically join an electrical structure to the communication line at the set position. The electrical structure including a temperature sensor configured to monitor temperature near the set position and further including an electronic identification code corresponding to the set position of the sensor along the axis. The system further including a transmitting device for selectively communicating the temperature and identification code. | 2013-05-23 |
20130128921 | Critical Temperature Indicator - A temperature descending indicator which gives a visual indication when the indicator has been exposed to temperatures below a set threshold temperature includes a container having a translucent portion, a first temperature sensitive gel of a first color which will convert to liquid when it is exposed to temperatures below the set threshold temperature, and a second temperature sensitive gel of a second color which will convert to liquid when it is exposed to temperatures below the set threshold temperature, wherein the second temperature sensitive gel is disposed adjacent said translucent portion in a manner to obscure the visibility of the first temperature sensitive gel. A method of making the indicator includes disposing one color gel over the other. | 2013-05-23 |
20130128922 | Temperature Measuring Devices and Related Methods - Exemplary embodiments are disclosed herein of temperature measuring devices. In an exemplary embodiment, a temperature measuring device includes a temperature sensing means, at least two reference voltage sources, and a reference voltage selection means for selecting one reference voltage source from the at least two reference voltage sources to generate a reference voltage output. The temperature measuring device also includes an A/D converter for converting an analog signal output by the temperature sensing means to a digital signal based on the reference voltage output. The temperature measuring device further includes a temperature calculation means for calculating a temperature to be measured based on the digital signal output by the A/D converter. | 2013-05-23 |
20130128923 | DEVICE FOR RAISING TEMPERATURE AND METHOD FOR TESTING AT ELEVATED TEMPERATURE - An external DC power supply | 2013-05-23 |
20130128924 | GAS-ACTUATED THERMOMETER - The gas-actuated thermometer is formed as a unitary, monolithic glass structure with a gas bulb at one end and an indicator tube extending therefrom. The bulb and tube are permanently and hermetically sealed to contain the actuating gas therein. A closed cell foam indicator resides in the indicator tube. The indicator travels along the tube in accordance with the expansion and contraction of the gas within the bulb and adjacent portion of the tube. A second gas or mechanical spring is provided in the opposite end of the tube to balance the pressure of the indicator gas. The indicator tube, and preferably also the bulb, are flattened to an elliptical or similar cross-sectional shape. This facilitates the fit of the device for use as an oral medical thermometer, and the wider cross section enables both Celsius and Fahrenheit temperature scales to be marked along the indicator tube. | 2013-05-23 |
20130128925 | TEMPERATURE SENSOR - A temperature sensor comprising a sensor element that is arranged in a housing, is characterized in that the sensor element is totally enclosed with a thermally conductive material, preferably with a thermally conductive paste, inside the housing. | 2013-05-23 |
20130128926 | PROBE COVER WITH MATCHING FEATURE FOR A MEDICAL THERMOMETER - A probe cover for medical thermometer has a matching feature for preventing its use with an incompatible thermometer. A mechanical matching feature of the probe cover includes at least one of a fold, a step, or a series of holes or indentations that are respectively matched to a ridge, a valley or series of pins formed on the front end of a compatible thermometer. When applied to the compatible thermometer, the mechanical matching feature permits the probe cover to be fully seated on and retained by the probe, thereby placing the thermometer in condition for use. Alternatively, an opto-electronic matching feature of the probe cover includes a reflective layer for use with an opto-electronic detection circuit of a compatible thermometer. When applied to the compatible thermometer, the opto-electronic detection detects the reflective layer and places the compatible thermometer in an operational state for use. | 2013-05-23 |
20130128927 | SYSTEM AND METHOD FOR DETECTING CHIRPING RADAR PULSES - This disclosure is directed to wireless communication systems having a receiver capable of detecting chirping radar pulses. The systems and methods include processing an input signal to obtain a spectral analysis that identifies which frequency exhibits maximum signal magnitude at a given time and determines a rate of change that frequency. By determining that the rate of change is within parameters established by the pulse width range and the chirping bandwidth range, the signal can be identified as a chirping radar pulse. By comparing the rate of change to known characteristics, the signal can be identified as a chirping radar pulse. Suitable characteristics include parameters for the rate of change established by the pulse width range and the chirping bandwidth range and linearity of the rate of change. | 2013-05-23 |
20130128928 | CANCELLATION OF PILOT AND TRAFFIC SIGNALS - A method for removing selected signals from a received signal prior to decoding begins by receiving communication signals from a transmitter over a CDMA air interface. The received communication signals are input to a traffic signal cancellation system for canceling unwanted traffic signals, thereby producing an output (O). The received communication signals are input to a pilot signal cancellation system for removing a global pilot signal, thereby producing an output (O | 2013-05-23 |
20130128929 | Rake Receiver Circuit and Method for Operating a Rake Receiver Circuit - A method of operating a Rake receiver circuit includes determining a first property of a first signal received over a dedicated channel and over a first transmission path. The method further includes determining a delay profile of a second signal and determining, on the basis of the delay profile and the first property, if the first transmission path is to be assigned to a Rake finger of the Rake receiver circuit. | 2013-05-23 |
20130128930 | CONTINUOUS TIME CHAOS DITHERING - Embodiments of the present invention provide a system and method for further reducing cyclostationarity and correspondingly energy density in a chaotic spread spectrum data communication channel, 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 spread spectrum signal having a uniform sampling interval. The digital IF spread spectrum signal is converted to a sampled analog IF spread spectrum signal at a conversion rate substantially equal to the 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 analog IF spread spectrum signal. After introducing the known dither, the analog IF spread spectrum signal is upconverted to an analog RF spread spectrum signal. The first pseudo-random sequences may be designed to be a chaotic sequence. | 2013-05-23 |
20130128931 | ON-CHIP RADIO CALIBRATION - One embodiment of the present invention provides a quadrature-mixing transmitter for wireless communication. The transmitter includes a quadrature modulator comprising an in-phase (I) channel and a quadrature (Q) channel, a calibration-signal generator configured to generate calibration signals that are sent to the I channel and the Q channel, and a calibration circuit configured to calibrate an imbalance between the I channel and the Q channel. The modulator, the calibration-signal generator, and the calibration circuit are located on a same integrated circuit (IC) chip, thereby facilitating on-chip calibration of the imbalance between the I channel and the Q channel. | 2013-05-23 |
20130128932 | CHANNEL PARAMETER ESTIMATION METHOD - A channel parameter estimation method adapted to a wireless communication system is proposed. The wireless communication system includes a transmitter and a receiver. The proposed method includes following steps. The transmitter transmits a plurality of pilot signals to the receiver by using one of a plurality of preconfigured sparse random pilot patterns. The receiver receives the pilot signals, performs a channel parameter estimation on the pilot signals by using a compressive sensing algorithm to obtain a multipath channel number, and selects a pilot pattern for a next cycle among the preconfigured sparse random pilot patterns according to the multipath channel number and a current pilot number. Additionally, the receiver transmits feedback information associated with the selected pilot pattern to the transmitter. | 2013-05-23 |
20130128933 | TRANSCEIVER WITHOUT USING A CRYSTAL OSCILLATOR - A transceiver includes a transceiver and a clock generation unit. The clock generation unit includes a clock generator, a multiplexer, and a frequency difference detector. The transceiver exchanges data with a link partner according to a first clock generated by a phase-locked loop. The clock generator is used for generating and outputting a second clock. The multiplexer is used for receiving a calibration clock or a receiver clock of the link partner, and outputting the calibration clock or the receiver clock of the link partner. The frequency difference detector is used for generating a difference signal according to a difference between the calibration clock and the second clock, or a difference between the receiver clock of the link partner and the second clock. The clock generator adjusts the shift of the second clock according to the difference signal. The phase-locked loop generates the first clock according to the second clock. | 2013-05-23 |
20130128934 | RECEIVER AND TRANSMITTER OF COPING WITH INTERFERENCE IN SUPER-REGENERATIVE COMMUNICATION SYSTEM, AND METHOD OF USING THE RECEIVER AND THE TRANSMITTER - A receiver and a transmitter that copes with interference in a super-regenerative communication system, and a method of using the receiver and the transmitter, are provided. A super-regenerative receiver includes a resonance frequency adjusting unit configured to adjust a resonance frequency associated with a filtering band of a transmission signal that is received from a transmitter. The super-regenerative receiver further includes an oscillation signal generating unit configured to generate an oscillation signal, using a positive feedback amplification, based on the resonance frequency and the transmission signal. The super-regenerative receiver further includes an oscillation characteristic detecting unit configured to detect a characteristic of the oscillation signal. The super-regenerative receiver further includes a determining unit configured to determine whether interference is included in the transmission signal based on the characteristic of the oscillation signal and the resonance frequency. | 2013-05-23 |
20130128935 | FULL SPATIAL DIMENSION EXTRACTION FOR IMPLICIT BEAMFORMING - Techniques are provided to compute downlink beamforming weights for beamforming multiple spatial streams to a wireless device when that wireless device does not transmit with a maximum number of spatial streams, and thus when the full dimensional knowledge of the wireless channel to that wireless device needs to be implicitly derived. Uplink signals are received at a plurality of antennas of a first wireless device that are transmitted via a plurality of antennas of a second wireless device. The first wireless device derives values at a plurality of subcarriers of the received signals across the plurality of antennas of the first wireless device. Downlink beamforming weights are computed from values of consecutive subcarriers across the plurality of antennas of the first wireless device. The first wireless device applies the downlink beamforming weights at respective subcarriers to a number of spatial streams to be transmitted to the second wireless device. | 2013-05-23 |
20130128936 | Systems and Methods for Improved High Capacity in Wireless Communication Systems - An exemplary system comprises at least one antenna, first and second signal paths, and an N-plexer. The first antenna may be configured to receive first and second diversity received signals. The first signal path may have a first converter configured to convert the first diversity received signal to first carrier group. The second signal path may have a second converter configured to convert the second diversity received signal to a second carrier group. The N-plexer may be configured to provide the first and second diversity received signals to a first cable in communication with a first modem. | 2013-05-23 |
20130128937 | LINK ADAPTATION FOR MULTIMODE MIMO WIRELESS SYSTEM - A wireless receiver is disclosed that is capable of efficiently selecting a preferred transmission/detection scheme for use in wireless communication. The wireless receiver may be capable of communicating using any one of several transmission/detection schemes. Therefore, in order to select a preferred transmission/detection scheme, the wireless receiver calculates at least one metric for the transmission/detection schemes. In MIMO systems, the link adaptation is more complex and the metrics typically must be more accurate. Because of the potentially substantial amount of calculation that may be required to calculate the metric, the wireless receiver is capable of performing the individual calculations in optimized ways, as well as easily reducing the total number of metrics required to be calculated so as to reduce overall complexity. | 2013-05-23 |
20130128938 | RECEIVING DEVICE, SIGNAL PROCESSING DEVICE, AND SIGNAL PROCESSING METHOD - A receiving device according to the present invention includes: a receiver for receiving an OFDM symbol that is modulated by phase shift keying; an FFT processor for applying an FFT process to the received OFDM symbol to obtain a subcarrier signal; a demapping unit for demapping the subcarrier signal to generate a bit string; a norm calculator for calculating the norm of the subcarrier; a weighting factor generator for generating a weighting factor by taking the statistics of the calculated norm; and a weighting unit for obtaining a soft decision value by weighting the bit string after demapping, based on the particular weighting factor. Thus, the receiving device can obtain a soft decision value to achieve good decoding performance with a small number of known signals and processes. | 2013-05-23 |
20130128939 | METHOD FOR DETECTING WITH A HIGH TEMPORAL ACCURACY A THRESHOLD CROSSING INSTANT BY A SIGNAL - A method detects a threshold crossing instant at which a signal crosses a threshold, by: sampling the signal at plural sampling instants spaced from one another by a sampling period; detecting consecutive first and second sampling instants at which the signal has a first signal value lower than or equal to the threshold, and the signal has a second signal value higher than the threshold, respectively; calculating a first interval indicative of a time between the threshold crossing instant and the first sampling instant; setting a reference signal having a reference amplitude representing the first interval relative to a reference scale; generating a signal with a delay depending on said reference signal; generating a threshold crossing detection signal at an instant delayed by a second interval; calibrating the reference scale of the reference amplitude so that the second interval is substantially equal to the first interval. | 2013-05-23 |
20130128940 | METHODS FOR DETERMINING DECODING ORDER IN A MIMO SYSTEM WITH SUCCESSIVE INTERFERENCE CANCELLATION - Certain aspects provide a method for determining decoding order and reconstruction weights for decoded streams to be cancelled in a MIMO system with successive interference cancellation, based on estimates of the channel characteristics, the received composite signal and parameters of the system. | 2013-05-23 |
20130128941 | SYSTEMS AND METHODS FOR MEASURING A SIGNAL QUALITY BETWEEN AN ENTERTAINMENT DEVICE AND A REMOTE CONTROL - Methods and systems are provided for measuring a signal quality between an entertainment device and a remote control. The entertainment device, for example, may include, but is not limited to, a signal receiver, a memory configured to store a predetermined data sequence, and a controller coupled to the signal receiver and the memory. The controller may be configured to receive a data sequence from the signal receiver, compare the received data sequence to the predetermined data sequence, and generate signal quality data on the received data sequence based upon the comparison. | 2013-05-23 |
20130128942 | ADVANCED INTERFERENCE CANCELLATION FOR PRECODED GSM EDGE RADIO ACCESS NETWORK (GERAN) - An interference cancellation receiver for a pre-coded orthogonal frequency division multiplexed (OFDM) based system combines temporal interference cancellation within the OFDM framework. Multi-path equalization and inter-symbol interference (ISI) cancellation are performed on a time domain channel estimate of a received signal. An output from the multi-path equalization is transformed to the frequency domain. Inter-channel interference (ICI) is performed in the frequency domain on an equalized signal from the multi-path equalization after transforming the equalized signal from the time domain to the frequency domain. | 2013-05-23 |
20130128943 | APPARATUS AND METHOD THEREOF FOR COMPENSATING FOR GAIN CHANGES OF N-PAM MODULATE SIGNALS - A method for compensating for gain changes of an N-level pulse amplitude modulation (PAM-N) modulated signal. The method comprises comparing the PAM-N modulated signal to N−1 configurable thresholds, wherein the input PAM-N modulated signal is also equalized and the N−1 configurable thresholds are N−1 different voltage levels; tracking gain changes in the input PAM-N modulated signal by comparing the input PAM-N modulated signal to a compensation threshold; and adjusting a level of the at least one of the N−1 configurable thresholds of the N−1 comparators based on an output of the compensation comparator, thereby offsetting a crossing point of the at least one comparator respective of the at least one of the N−1 configurable thresholds to compensate for gain changes in the input PAM-N modulated signal. | 2013-05-23 |
20130128944 | Selectable-tap Equalizer - A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval. | 2013-05-23 |
20130128945 | Method and System for Low Complexity Conjugate Gradient Based Equalization in a Wireless System - Methods and systems for processing signals in a receiver are disclosed herein and may include updating a plurality of filter taps utilizing at least one channel response vector and at least one correlation vector, for a plurality of received clusters, based on initialized values related to the at least one channel response vector and the at least one correlation vector. At least a portion of the received signal clusters may be filtered utilizing at least a portion of the updated plurality of filter taps. The update may be repeated whenever a specified signal-to-noise ratio (SNR) for the received signal clusters is reached. The initialized values may be updated during a plurality of iterations, and the update may be repeated whenever a specified number of the plurality of iterations is reached. | 2013-05-23 |
20130128946 | METHOD OF OPTIMIZING FLOATING DFE RECEIVER TAPS - A method for determining floating tap positions in a DFE of a receiver is disclosed. The method include providing a group of floating taps for the DFE; obtaining a baseline eye opening value for the receiver when the group of floating taps is disabled; providing a plurality of floating tap distribution configurations, each specifying a distribution configuration for the group of floating taps within the DFE; obtaining a plurality of eye opening values for the receiver, each particular eye opening value corresponding to a particular floating tap distribution configuration when the group of floating taps are distributed within the DFE according to the particular floating tap distribution configuration; comparing each of the plurality of eye opening values against the baseline eye opening value; and identifying an optimal floating tap distribution configuration based on the comparison of each of the plurality of eye opening values against the baseline eye opening value. | 2013-05-23 |
20130128947 | SYSTEM AND METHOD FOR AUTOMATICALLY SELECTING ENCODING/DECODING FOR STREAMING MEDIA - Disclosed herein are systems, methods, and non-transitory computer-readable storage media for encoding media content based on network quality of service parameters. A system configured to practice the method determines quality of service parameters for a network between a media server and a media client. The system selects an encoder based on a list of decoders available at the media client and the quality of service parameters, and encodes at least a portion of the media via the encoder. The system can further determine settings for the encoder based on a media type, and encode the media via the encoder according to the settings. The system can detect when the media client moves to a new network, detect new quality of service parameters, and select a new encoder based on the list of decoders available at the media client, the media type, and the new quality of service parameters. | 2013-05-23 |
20130128948 | DISPLAY MODE-BASED VIDEO ENCODING IN WIRELESS DISPLAY DEVICES - This disclosure relates to techniques for performing display mode based video encoding to reduce power consumption in a source device of a Wireless Display (WD) system. More specifically, the techniques enable the source device to select an encoding process based on whether the video data to be encoded is in a static display mode or a dynamic display mode. For example, when the video data is in the static display mode, the source device selects a static encoding process that reduces an amount of video data processing and compression, which in turn reduces power consumption at the source device. When the video data is in the dynamic mode, the source device may select a conventional dynamic encoding process. The source device encodes the video data according to the selected encoding process, and transmits the encoded video data to one or more sink devices in the WD system for display. | 2013-05-23 |
20130128949 | Early Stage Slice Cap Decision in Video Coding - A method for making a slice cap decision during encoding of a video sequence in a video encoding pipe is provided that includes determining a prediction mode for a macroblock, computing an estimated encoded size of the macroblock based on an adaptive macroblock size estimation model, and making a slice cap decision for a current slice based on the estimated encoded macroblock size, wherein the slice cap decision is made prior to entropy coding the macroblock. | 2013-05-23 |
20130128950 | METHOD AND SYSTEM OF BIT RATE CONTROL - A method and system for bit rate control during encoding of multimedia data are disclosed. A change in complexity of a multimedia picture relative to complexity associated with one or more multimedia pictures in a multimedia sequence is determined. A complexity associated with a multimedia picture is determined based on number of bits and an average quantization associated with the multimedia picture. A bit rate is adjusted for encoding the multimedia picture based on the change in complexity of the multimedia picture. The bit rate is increased on determining an increase in complexity of the multimedia picture and is decreased on determining a decrease in complexity of the multimedia picture. Utilization of additional bits during the increase in the bit rate and saving of bits during the decrease in the bit rate are compensated during adjusting of bit rates for encoding subsequent multimedia pictures in the multimedia sequence. | 2013-05-23 |
20130128951 | METHOD AND APPARATUS FOR DECODING CONTENT USING DECODING INFORMATION - Provided are an apparatus and method for decoding content data by using decoding information. The method includes: receiving a content switch requesting signal; receiving new content requested by the content switch requesting signal; extracting decoding information from the new content data; comparing the decoding information of the new content data to decoding information of previous content data; and, based on a result of the comparing the decoding information of the new content data to the decoding information of the previous content data, determining whether to stop a decoder. | 2013-05-23 |
20130128952 | Method and Apparatus for SSIM-Based Bit Allocation - A method and an encoder for SSIM-based bits allocation. The encoder includes a memory and a processor utilized for allocating bits based on SSIM, wherein the processor estimates the model parameter of SSIM-based distortion model for the current picture and determines allocates bits based on the SSIM estimation. | 2013-05-23 |
20130128953 | REPRODUCTION APPARATUS, REPRODUCTION METHOD, AND PROGRAM - A reproduction apparatus is disclosed which includes: an acquisition part configured to acquire a transmitted stream; a buffer configured to store the acquired stream; and a decoding part configured to perform the process of decoding the stream coming from the buffer. The reproduction apparatus further includes a control part configured such that if the amount of the stream occupying the buffer is below a predetermined reference value, the control part controls the frame rate of frames for reproduction acquired through the decoding process to be a lower frame rate than normal and that if the amount of the stream occupying the buffer reaches the reference value, the control part controls the frame rate of the frames to become the normal frame rate. | 2013-05-23 |
20130128954 | ENCODING METHOD AND APPARATUS - The encoding method includes: an information collecting step of collecting at least any one of coding information of a reference unit, which includes at least one of a first reference unit adjacent to a current coding unit or a current prediction unit, a second reference unit present at a position corresponding to the current coding unit or the current prediction unit in a reference image, and a third reference unit adjacent to the second reference unit, or coding information of a higher unit, which includes the current coding unit or the current prediction unit and has a size greater than that of the current prediction unit; and predictive coding performing step of performing predictive coding by determining whether to omit a predictive coding process with respect to the current coding unit or the current prediction unit by using the collected coding information. | 2013-05-23 |
20130128955 | BITRATE DISTRIBUTION - There is provided a method of processing video information, the method comprising encoding ( | 2013-05-23 |
20130128956 | APPARATUS AND METHOD FOR RECEIVING SIGNALS - A method of receiving a signal contains a first data stream at a first encoding rate and a second stream at a second encoding rate, outputting content from the first data stream if an error value of the first data stream is below a first error value, and outputting content from the second data stream if the error value of the first stream is above the first error value. An apparatus has a demodulator that receives a signal containing a first portion encoded at a first encoding rate and a second portion encoded at a second encoding rate, a controller that determines whether an error rate of a decoded first portion is above a first error rate, and an output driver that provides a video signal from a decoded second portion if the decoded first portion is above the first error rate. | 2013-05-23 |
20130128957 | APPARATUS AND METHODOLOGY FOR A VIDEO CODEC SYSTEM WITH NOISE REDUCTION CAPABILITY - Systems and methods for noise reduction are disclosed herein. The system includes a video codec system that can encode and/or decode video information. A noise representation component can identify flat regions and a quantizer can utilize the identified flat regions to suppress noise during compression. By suppressing noise during compression, the size of the video file to be compressed can be reduced, compression can use less resources and take less time, and the speed at which the compressed information is transferred can benefit. Noise can be reintroduced during the reconstruction of the video. Accordingly, both noise reduction and noise synthesis can be accomplished. | 2013-05-23 |
20130128958 | VIDEO DATA ENCODING AND DECODING - A video data encoding apparatus in which arrays of frequency domain video data are reordered for encoding by an encoder. The apparatus includes a last data item detector for searching a current array for a last non-zero array element according to a searching pattern which searches array elements in one or more sets of a constant horizontal spatial frequency or a constant vertical spatial frequency respectively followed by any remaining array elements of the array ordered according to successive subsets, each subset being selected so that the sum of a horizontal spatial frequency component and a vertical spatial frequency component is generally constant for array elements within a subset. The apparatus including a data scanner for changing the order of the array elements for entropy encoding according to a reordering pattern so as to generate reordered array elements comprising successive subsets. | 2013-05-23 |
20130128959 | APPARATUS FOR ENCODING/DECODING SAMPLED COLOR IMAGE ACQUIRED BY CFA AND METHOD THEREOF - Disclosed are apparatus and methods for encoding/decoding sampled color images acquired by using a CFA according to an exemplary embodiment of the present invention. An apparatus for encoding color images includes: an acquiring unit that acquires color images of a first color coordinate system; a conversion unit that converts the acquired color images of the first color coordinate system into color images of a second color coordinate system by treating a preset number of pixels as a unit; and an encoding unit that encodes the converted color images of the second color coordinate system to generate a compressed image. By this configuration, the present invention can convert color images into the YUV color coordinate system without interpolation of color images, reduce the data size increase caused by conversion into the YUV color coordinate system, and prevent reduced coding efficiency. | 2013-05-23 |
20130128960 | ENCODING APPARATUS, METHOD OF CONTROLLING THEREOF, AND COMPUTER PROGRAM - An encoding apparatus comprises, a detection unit configured to determine a characteristic of the image of each of a plurality of blocks and to detect whether visual degradation in each block is noticeable, a determination unit configured to determine a quantization parameter of each block based on a detection result, a transformation unit configured to perform orthogonal transformation of the block and quantization using the quantization parameter, an encoding unit configured to perform variable-length encoding of a transformation result, an inverse transformation unit configured to inversely transform the transformation result to generate a locally decoded image, and a calculation unit configured to calculate a reference value to change a criterion to determine the characteristic of the image, wherein the detection unit detects a block having noticeable visual degradation by changing the criterion in accordance with the reference value. | 2013-05-23 |
20130128961 | METHOD OF DECODING MOVING PICTURES IN INTRA PREDICTION - A video coding method for encoding a video signal at a low data rate with high video quality is disclosed. To minimize the number of bits required for a residual signal, invalid reference pixels adjacent to a current block are generated using at least one reconstructed valid reference pixel adjacent to the current block. After valid reference pixels adjacent to the current block and the generated reference pixels are filtered, the intra-prediction mode of the current block is determined. Therefore, since a reference block most approximate to the current block is generated, the amount of data needed for the residual block of the current block can be minimized. | 2013-05-23 |
20130128962 | EFFICIENT ENCODING OF VIDEO FRAMES IN A DISTRIBUTED VIDEO CODING ENVIRONMENT - Systems and methods are presented for processing sequences of video frames in a distributed video coding environment. Video frames chosen as key video frames are encoded in their entirety on a sending device, and the encodings are forwarded to a receiving device. Non-key video frames are partitioned into blocks of pixels which are individually processed at the sending device. Some pixel blocks are designated for reconstruction at the receiving device using a similar corresponding pixel block from a previous video frame, and the sending device does not encode those pixel blocks. Other pixel blocks are compressed at the sending device into representations that are sent to the receiving device to facilitate reconstruction of the other pixel blocks at the receiving device. Exceptional efficiency and accuracy may be achieved by employing spatiograms and singular value decompositions in processing pixel blocks of the non-key video frames at the sending device. | 2013-05-23 |
20130128963 | Multiple-Pass Rate Control for Video Coding Applications - Methods and systems for coding applications are described, where multiple coding passes are performed for purposes of rate control. Prediction structures are generated and used by the multiple coding passes to update coding statistics generated prior to the coding passes. The updated coding statistics are used for a subsequent coding operation. | 2013-05-23 |
20130128964 | REFERENCE MODE SELECTION IN INTRA MODE CODING - A video coder can determine a first most probable intra prediction mode and a second most probable intra prediction mode for a current video block, and based on the first and second most probable intra prediction modes, determine an estimate of an actual intra prediction mode used to code the current video block. The estimate of the actual intra prediction mode can be determined by selecting one of the first most probable mode and the second most probable mode as the estimate of the actual intra prediction in response to both the first most probable mode and the second most probable mode being different angular prediction modes. The estimate of the actual intra prediction mode plus difference information can be used to identify the actual intra prediction mode used to code the current video block. | 2013-05-23 |
20130128965 | INSIDE VIEW MOTION PREDICTION AMONG TEXTURE AND DEPTH VIEW COMPONENTS - The techniques of this disclosure may be generally related to using motion information for a corresponding block from a texture view component that corresponds with a block in a depth view component in coding the block in the depth view component. In some examples, for coding purposes, the techniques may use motion information when the spatial resolution of the texture view component is different than the spatial resolution of the depth view component. | 2013-05-23 |
20130128966 | Scanning of Prediction Residuals in High Efficiency Video Coding - A video codec comprising a processor configured to generate a prediction block for a current block, compute a difference between the current block and the prediction block to generate a residual block, scan a plurality of prediction residuals located in the residual block following a scanning order, and if the plurality of residual values comprise at least one non-zero prediction residual, entropy encode the at least one non-zero prediction residual. A method comprising generating a prediction block for a current block, computing a difference between the current block and the prediction block to generate a residual block, scanning a plurality of prediction residuals located in the residual block, and if the plurality of residual values comprise at least one non-zero prediction residual, entropy encoding the at least one non-zero prediction residual. | 2013-05-23 |
20130128967 | EXPLICIT WAY FOR SIGNALING A COLLOCATED PICTURE FOR HIGH EFFICICENCY VIDEO CODING (HEVC) - A system is provided for determining a collocated reference picture to enable encoding and decoding of a current picture for high efficiency video coding (HEVC). The collocated picture is identified by accessing syntax that can include an index for a list | 2013-05-23 |
20130128968 | Method for predicting a shape of an encoded area using a depth map - A method for predicting a shape of an encoded area using a depth map. The method includes synthesizing a virtual depth map and identifying disoccluded regions in the virtual depth map, wherein the disoccluded regions provide a predicted a shape of an area under compression. | 2013-05-23 |
20130128969 | EXPLICIT WAY FOR SIGNALING A COLLOCATED PICTURE FOR HIGH EFFICICENCY VIDEO CODING (HEVC) USING REFERENCE LIST0 AND LIST1 - A system is provided for determining a collocated reference picture to enable encoding and decoding of a current picture for high efficiency video coding (HEVC). The collocated picture is identified by accessing syntax that can include an index for a list0 and a list1, a reference picture set number indicating the number of pictures in list0 and list1, and a flag indicating if the collocated picture is in list0 or list1. The system can further use slice type to determine if both list0 and list1 should be accessed. | 2013-05-23 |
20130128970 | EXPLICIT WAY FOR SIGNALING A COLLOCATED PICTURE FOR HIGH EFFICICENCY VIDEO CODING (HEVC) USING A SINGLE REFERENCE LIST - A system is provided for determining a collocated reference picture to enable encoding and decoding of a current picture for high efficiency video coding (HEVC). The collocated picture is identified by accessing syntax that can include an index for a list | 2013-05-23 |
20130128971 | TRANSFORMS IN VIDEO CODING - Aspects of this disclosure relate to coding video data. In an example, a method of coding video data includes determining a first residual quadtree (RQT) depth at which to apply one or more first transforms to residual video data based on at least one characteristic of the residual of video data. The method also includes determining a second RQT depth at which to apply one or more second transforms to the residual video data based on the at least one characteristic. The method also includes coding the residual video data using the one or more first transforms and the one or more second transforms. | 2013-05-23 |
20130128972 | IMAGE ENCODING APPARATUS AND IMAGE DECODING APPARATUS - According to one embodiment, an image encoding apparatus includes a setting unit configured to set a combination of a vertical transform matrix and a horizontal transform matrix corresponding to the target image. The combination includes any of a plurality of transform matrices including a first transform matrix and a second transform matrix which increases a coefficient density compared to the first transform matrix if a one-dimensional orthogonal transformation in a direction orthogonal to a line of a group of reference pixels on at least one line is performed on the prediction error in the intra-prediction mode in which the group of reference pixels is referenced to generate an intra-prediction image. | 2013-05-23 |
20130128973 | METHOD AND APPARATUS FOR ENCODING AND DECODING AN IMAGE USING A REFERENCE PICTURE - A method and apparatus for encoding and decoding an image by performing motion prediction and compensation on pictures in a group of pictures by selectively using a high-quality key picture that is previously encoded and restored, and a second picture that is previously encoded and restored. The method of encoding an image improves the prediction efficiency of an image by storing a key picture, which is encoded and restored to a high quality by reducing a loss caused by a quantization error using a small quantization coefficient, in a first storage unit and storing a previously encoded and restored second picture in a second storage unit, and then performing motion prediction and compensation by selectively using the key picture stored in the first storage unit and the second picture stored in the second storage unit while encoding a next picture in a group of pictures. | 2013-05-23 |
20130128974 | ADAPTIVE OVERLAPPED BLOCK MOTION COMPENSATION - In general, techniques are described for performing adaptive overlapped block motion compensation when coding video data. A video coding device configured to code video data may implement the techniques. The video coding device may comprise one or more processors configured to determine an adaptation metric from a region of support for one of a first partition and a second partition of one or more blocks of the video data separated by a partition boundary. The region of support may not be the entire one or more blocks of video data. The one or more processors may further be configured to adapt, based on the adaptation metric, application of an overlapped block motion compensation process to determine predicted pixel values near the partition boundary for a first predicted block representative of the first partition of the video block. | 2013-05-23 |
20130128975 | METHOD AND SYSTEM FOR ORGANIZING PIXEL INFORMATION IN MEMORY - A system and method for organizing pixel information in memory. A method according to an embodiment of the disclosure includes storing data representative of pixels of a scene in a growing window (“GW”) portion of a reference frame in an on-chip memory, storing data representative of pixels of the visual scene in a sliding window (“SW”) portion of the reference frame thereby forming a hybrid window, searching the memory to locate a portion of the stored data that corresponds with data representative of pixels in a current frame descriptive of the scene, performing motion estimation according to results of the search, generating a compressed version of the current frame according to results of the motion estimation, and storing the compressed version for later visual rendering. The system includes a processing unit and a video encoder. The processing unit includes an on-chip memory. The video encoder includes a motion estimation engine and a compression unit. | 2013-05-23 |
20130128976 | METHOD OF CODING MOVING IMAGE AND METHOD OF DECODING MOVING IMAGE - A method includes extracting a first vector used to code a specific block belonging to a coded field picture arranged chronologically adjacent to a field picture to be coded and to a block to be coded, generating a second vector by scaling the first vector based on a temporal distance between the field picture and a second picture specified by a reference index and referenced for the block and included in the field picture and a temporal distance between a first picture pointed by the first vector and the coded field picture arranged chronologically adjacent to the field picture, and correcting the second vector based on a parity of the field picture, a parity of the first picture, a parity of the second picture and a parity of the coded field picture and forming the corrected second vector. | 2013-05-23 |
20130128977 | IMPLICIT DETERMINATION AND COMBINED IMPLICIT AND EXPLICIT DETERMINATION OF COLLOCATED PICTURE FOR TEMPORAL PREDICTION - In one embodiment, a method determines a current picture and determines at least one of a first list of reference pictures and a second list of reference pictures for the current picture. A temporal distance is analyzed between the current picture and at least a portion of the reference pictures in the at least one of a first list of reference pictures and a second list of reference pictures. The method then selects reference picture that is closest in temporal distance from the current picture in the analyzed at least a portion of the reference pictures. The selected reference picture is set as a collocated picture for the current picture and the selected reference picture is used in a temporal prediction process for the current picture. | 2013-05-23 |
20130128978 | METHODS FOR ENCODING/DECODING OF VIDEO USING COMMON MERGING CANDIDATE SET OF ASYMMETRIC PARTITIONS - The present invention provides video encoding and decoding methods using block merging, which can be applied to a high resolution video of more than HD (High Definition) resolution. A video encoding method includes partitioning a current block into a first and a second prediction unit by using asymmetric partitioning, constructing a list of common merging candidate blocks including a predetermined number of common merging candidate blocks selected from adjacent blocks of the current block, selecting at least one candidate block from among the list of common merging candidate blocks and sending information of the selected candidate block to a decoder for each of the first and the second prediction unit. | 2013-05-23 |
20130128979 | VIDEO SIGNAL COMPRESSION CODING - The invention relates to the compression coding of video signals. The invention may be applied in some embodiments to the compression coding of three dimensional television (3DTV) signals. The invention provides a method of coding of a video signal, in which the presence of at least a first image area and a second image area in a picture, in which the images in the first image area and in the second image area are substantially identical is determined. In response to a positive determination, picture information in one image area is compression coded without reference to picture information in another image area. The invention also provides a video coder for coding a video signal. | 2013-05-23 |
20130128980 | MOTION VECTOR PREDICTIVE ENCODING METHOD, MOTION VECTOR DECODING METHOD, PREDICTIVE ENCODING APPARATUS AND DECODING APPARATUS, AND STORAGE MEDIA STORING MOTION VECTOR PREDICTIVE ENCODING AND DECODING PROGRAMS - A motion vector predictive encoding method, a motion vector decoding method, a predictive encoding apparatus, a decoding apparatuses, and storage media storing motion vector predictive encoding and decoding programs are provided, thereby reducing the amount of generated code with respect to the motion vector, and improving the efficiency of the motion-vector prediction. If the motion-compensating mode of the target small block to be encoded is the global motion compensation, the encoding mode of an already-encoded small block is the interframe coding mode, and the motion-compensating mode of the already-encoded small block is the global motion compensation, then the motion vector of the translational motion model is determined for each pixel of the already-encoded small block, based on the global motion vector (steps S | 2013-05-23 |
20130128981 | MOVING IMAGE DECODING APPARATUS, MOVING IMAGE DECODING METHOD AND MOVING IMAGE ENCODING APPARATUS, AND MOVING IMAGE ENCODING METHOD - A moving image decoding apparatus includes a region boundary position information extracting unit which extracts region boundary position information between a clean region including at least one block encoded such that a pixel value is guaranteed to be decoded correctly, and a non-clean region, a region classification unit which specifies the clean region and the non-clean region in each picture based on the region boundary position information, a referenceability determining unit which, when a decoding target block belongs to the clean region, determines that blocks in the clean region in the decoding target picture and blocks in the clean region in the reference picture are referenceable, and, when the decoding target block belongs to the non-clean region, determines that all of blocks of the decoding target picture and the reference picture are referenceable, and a decoding unit which decodes the decoding target block with reference to only the referenceable blocks. | 2013-05-23 |
20130128982 | METHOD FOR GENERATING PREDICTION BLOCK IN AMVP MODE - A method for generating a prediction block in Advanced Motion Vector Prediction (AMVP) mode to reconstruct a prediction-coded video signal using a motion vector approximate to original motion information. An AMVP candidate list is generated using effective spatial and temporal AMVP candidates for a current Prediction Unit (PU). If the number of the effective AMVP candidates is smaller than a predetermined value, a motion vector having a predetermined value as a candidate to the AMVP candidate list. Then a motion vector corresponding to an AMVP index of the current PU from among motion vectors included in the AMVP candidate list is determined to be a motion vector predictor of the current PU. | 2013-05-23 |
20130128983 | IMAGE CODING METHOD AND IMAGE DECODING METHOD - An image coding method for deriving a predicted motion vector suitable for increasing the coding efficiency of a motion vector. An image coding method of coding a current block with prediction using a first motion vector and a second motion vector, the first motion vector indicating a position in a first reference picture included in a first reference picture list. The second motion vector indicating a position in a second reference picture included in a second reference picture list, the method including: adding the first motion vector to a candidate predicted motion vector list to be used for coding the second motion vector, as a candidate predicted motion vector; selecting a predicted motion vector to be used for coding the second motion vector, from the candidate predicted motion vector list; and coding the second motion vector using the selected predicted motion vector. | 2013-05-23 |