Adjusting For Phase Or Jitter Patents (Class 370/516)
  • Patent number: 10382245
    Abstract: A method for compressing IQ measurement data obtained from a signal is described. Within the IQ measurement data, at least one block of IQ data is determined where redundancy of the respective data can be exploited. The IQ data of the at least one block is transformed into a transform domain where redundancy of the respective data can be exploited. Transform coefficients obtained in the transform domain are determined and assessed with regard to a pre-defined criteria so as to determine whether the transform coefficients comprise significant information. Only the IQ data assigned to transform coefficients having significant information is stored along with indices in the transform domain indicating where the respective transform coefficients occur in the transform domain.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: August 13, 2019
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Luke Cirillo
  • Patent number: 10382155
    Abstract: In a telecommunications network including at least a user device and a network node separated by at least a packet-switched part of the telecommunications network, the user device including a primary jitter buffer having a constant packet play-out rate, the network node including a secondary jitter buffer, incoming packets destined for the user device are received and passed through the secondary jitter buffer of the network node downstream towards the primary jitter buffer of the user device. The departure times of packets passing through the secondary jitter buffer of the network node downstream towards the primary jitter buffer of the user device are monitored. On the basis of the monitoring and one or more known characteristics of the primary jitter buffer, an estimate of a current state of the primary jitter buffer is maintained. Operation of the secondary jitter buffer is dynamically controlled according to the maintained estimate.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 13, 2019
    Assignee: Metaswitch Networks Ltd
    Inventor: Colin Tregenza Dancer
  • Patent number: 10374928
    Abstract: Techniques for efficient bandwidth estimation are described herein. In some cases, the bandwidth estimation techniques disclosed herein may, for example, calculate bandwidth based on multiple packet groups transmitted at different times. Additionally, in some cases, the bandwidth estimation techniques disclosed herein may, for example, capture cross traffic and its effects on bandwidth. Furthermore, in some cases, the bandwidth estimation techniques disclosed herein may, for example, employ dynamic self-correcting techniques for more reliable estimates.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: August 6, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Mark Julio Kalman, Bin Wang, Yon-Seo Kim
  • Patent number: 10373674
    Abstract: Apparatuses and methods for data transmission offset values in burst transmissions. An example apparatus may include offset logic configured to provide offset values associated with a receiver circuit of a memory device coupled to a signal line. The offset values are based on individual transition threshold voltages biases of sample circuits of the receiver circuit. The example apparatus may further include an input/output (I/O) circuit comprising a driver circuit. The driver circuit configured to receive a logic signal and the offset values and to provide an output signal to the signal line based on the logic signal and to adjust voltages of the output signal based on the offset values.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 6, 2019
    Assignee: Micron Technology, Inc.
    Inventor: Wolfgang A. Spirkl
  • Patent number: 10355929
    Abstract: A computer-implemented method is provided for a network controller to implement an update on network elements with minimal disruption. The network controller receives a request to install the update on a number of network elements in one or more networks. Installing the update in each respective network element removes it from operation for an outage duration of time. The network controller determines how network flows will be distributed in the networks due to the outage from installing the update, and generates an update plan that includes timing for installing the update on each network element. The timing is based on how the network flows will be distributed in the networks. The network controller installs the update in each network element according to the timing of the update plan.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 16, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Jay K. Johnston, David C. White, Jr., Magnus Mortensen
  • Patent number: 10313100
    Abstract: The present invention relates to a method and an apparatus for automatic skew compensation. The apparatus according to the present invention comprises: a skew compensating part configured to receive a high speed data signal and output a plurality of delay data signals having different delay times; a start code detecting part configured to detect a start code from the plurality of delay data signals; and a control part configured to determine a skew delay time depending on signal reception quality which is determined on the basis of the number of start codes normally detected for each different delay time. The apparatus may further comprise a packet start detecting part configured to receive an LP signal separated from an MIPI D-PHY and count the number of received packets.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: June 4, 2019
    Assignee: ISMEDIA CO., LTD.
    Inventor: Sung-Oh Yim
  • Patent number: 10291944
    Abstract: The present disclosure is related to transmitting and receiving media channels, such as audio and video channels. These channels may be transmitted as packets from one or more transmitting devices to one or more receiving devices for playout. Certain embodiments of the present disclosure include systems, methods, and computer-readable media for determining latency of a data network for synchronized playout of received signals. Additionally, certain embodiments of the present disclosure include a systems, methods, and computer-readable media for synchronizing playout among devices connected to a data network.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 14, 2019
    Assignee: Audinate Pty Limited
    Inventors: Andrew White, Aidan Williams
  • Patent number: 10193779
    Abstract: An operation method of a server in a communication system, an operation method of an electronic device, the server, and the electronic device are provided. The operation method of the server includes determining a variation type of a buffering delay based on a packet transmission delay of a terminal, determining control information for controlling an uplink transmission rate of the terminal according to the variation type, and transmitting the control information.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: January 29, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seongryong Kang, Jonghyune Kim, Dongjin Lee, Jungah Choi
  • Patent number: 10192610
    Abstract: A memory controller receives data and phase-providing signals from a memory device. The phase-providing signal is not a clock signal, but is used by the memory controller to phase align a local data-sampling signal with the incoming data. The memory controller samples the data signal with the data-sampling signal. The memory controller can perform maintenance operations to update the phase relationship between the phase-providing and data-sampling signals.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: January 29, 2019
    Assignee: Rambus Inc.
    Inventors: Scott C. Best, Richard E. Warmke, David B. Roberts, Frank Lambrecht
  • Patent number: 10177899
    Abstract: A receiver receives a first data stream and a second data stream from a transmitting device over a packet-based communication network, the first data stream being of a first media type (e.g. audio) and the second data stream being of a second media type (e.g. video). The first jitter buffer will buffer each of a plurality of portions of the first data stream as they are received via the receiver, and apply a de-jittering delay before outputting each portion of the first data stream (e.g. audio stream) to be played out through the receiving device. The jitter buffer controller receives information on the second data stream (e.g. video stream), and adapts the de-jittering delay of the first jitter buffer (e.g. audio jitter buffer) in dependence on the information on the second data stream (e.g. information on the video stream).
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: January 8, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ermin Kozica, Wei Chen, David Yuheng Zhao, Christopher Asgaard Rödbro, Jesus de Vicente Peña
  • Patent number: 10129161
    Abstract: A method for handling network jitter is provided. The method includes: receiving a plurality of data packets and recording a receiving time of each data packet; calculating time intervals between all adjacent data packets according to the receiving time of each data packet; identifying a probability distribution of the time intervals according to a plurality of preset intervals; calculating a target size of a buffer according to the probability distribution and an allowable jitter probability; and adjusting the buffer according to the target size of the buffer.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 13, 2018
    Assignee: Xiaomi Inc.
    Inventors: Jing Li, Linzhang Wang, Shangui Liang, Zijing Wu
  • Patent number: 10103792
    Abstract: For example, a wireless station may be configured to generate a plurality of time-domain streams in a time domain, the plurality of time-domain streams comprising at least a first time-domain stream comprising a first data sequence in a first interval and a second time-domain stream comprising a second data sequence in the first interval, the first time-domain stream comprises a time-inverted and sign-inverted complex conjugate of the second data sequence in a second interval subsequent to the first interval, and the second time-domain stream comprises a time-inverted complex conjugate of the first data sequence in the second interval; to convert the plurality of time-domain streams into a respective plurality of frequency-domain streams in a frequency domain; and to transmit a Multiple-Input-Multiple-Output (MIMO) transmission based on the plurality of frequency-domain streams.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: October 16, 2018
    Assignee: INTEL CORPORATION
    Inventors: Artyom Lomayev, Alexander Maltsev, Carlos Cordeiro, Michael Genossar
  • Patent number: 10104206
    Abstract: A network module for sending and/or receiving of data packages from a network arrangement located in a network with ring structure, wherein the data package includes at least one data package segment, a source address, a destination address and an identification number. The network module includes a first network interface and a second network interface, for receiving and/or sending of data packages via the ring structure, a processor configured to determine, based on the destination address, if data packages received are directed to the network module and to determine if the source address and/or the destination address are contained in a predefined list of the network participants, to determine, based on the source address and the identification number, if a copy of a data package directed to the network module is already created in a memory, to create a copy of the data package in the memory.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: October 16, 2018
    Assignee: Airbus Defence and Space GmbH
    Inventors: Ulrich Schneider, Jürgen Meilinger
  • Patent number: 10103999
    Abstract: Some implementations involve controlling a jitter buffer size during a teleconference according to a jitter buffer size estimation algorithm based, at least in part, on a cumulative distribution function (CDF). The CDF may be based, at least in part, on a network jitter parameter. The CDF may be initialized according to a parametric model. At least one parameter of the parametric model may be based, at least in part, on legacy network jitter information.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: October 16, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: JiaQuan Huo, Xuejing Sun, Kai Li
  • Patent number: 10050765
    Abstract: Systems and methods for providing an efficient and configurable port interface in an avionics data transfer system are provided. For instance, in one embodiment a set of virtual ports associated with an avionics data transfer system can be defined. At least as a subset of the virtual ports can be mapped to one or more addresses in a memory space associated with the data transfer system, such that each virtual port has a fixed definition in the memory space. One or more of the virtual ports can then be associated with one or more physical ports associated with an interface between a host computing device and an end system in the data transfer system by specifying for the one or more virtual ports a plurality of port parameters that define the respective one or more physical ports.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 14, 2018
    Assignee: GE Aviation Systems LLC
    Inventors: Jonathan Paul Van Stensel, Colin Holmwood, Harry Molling
  • Patent number: 10028259
    Abstract: There is provided a communication control device including a radio communication unit which communicates with one or more terminal devices in a cell over a channel in which a link direction is allowed to be dynamically set for each sub-frame which is a unit of time in radio communication, and a control unit which controls allocation of communication resources to the terminal device based on the setting of the link direction of the channel and a location of the terminal device in the cell.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: July 17, 2018
    Assignee: Sony Corporation
    Inventors: Hiroaki Takano, Nishiki Mizusawa
  • Patent number: 9998386
    Abstract: A more robust and efficient flow of voice or other content packets can be achieved by leveraging an adaptive dejitter buffer. The dejitter buffer can be dynamically adjusted according to network conditions including handover. The dejitter buffer memory/depth can be adjusted in accordance with a delay interruption length associated with various handover types. Thereafter, the dejitter buffer memory can be filled with packet data to decrease a packet delay variation associated with handover.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: June 12, 2018
    Assignee: AT&T Mobility II LLC
    Inventors: Arthur Richard Brisebois, Sanjay Gupta
  • Patent number: 9997167
    Abstract: A jitter buffer control for controlling a provision of a decoded audio content on the basis of an input audio content is configured to select a frame-based time scaling or a sample-based time scaling in a signal-adaptive manner. An audio decoder uses such a jitter buffer control.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 12, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Reuschl, Stefan Doehla, Jeremie Lecomte, Manuel Jander
  • Patent number: 9992118
    Abstract: A system and method for efficient transfer of data over a network. A data source and a destination are coupled to one another via a network. The data source is configured to transmit data to the destination and determine a network latency associated with the transmission. In response to determining a first transmission parameter may not be optimized, the source is configured to modify the first transmission parameter and evaluate its effect on data throughput. The source may repeat such modifications as long as throughput is increased. Once the first transmission parameter is deemed optimized, the source may perform a similar procedure for a second transmission parameter. In various embodiments, the first transmission parameter may correspond to a packet size and the second transmission parameter may correspond to a number of streams being processed by the source.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: June 5, 2018
    Assignee: Veritas Technologies LLC
    Inventors: Yingsong Jia, Hongxing Guan, Xinbao Jin
  • Patent number: 9992740
    Abstract: There is provided a communication device including (1) a communication controller that causes a control frame for synchronization to be transmitted during a control frame transmission period to a transmission destination of a data frame such that the data frame is transmitted after transmission of the control frame has completed, (2) a transmission section that continuously transmits the control frame for the control frame transmission period, (3) a reception section that receives a frame transmitted by a communication device of the transmission destination, (4) a control frame transmission information saving section that saves information for respective destination addresses, (5) a control frame transmission controller that references the information saved in the control frame transmission information saving section, and determines the control frame transmission period for when to transmit the next control frame, based on the control frame transmission period from the past and the data frame transition resul
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: June 5, 2018
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Toshihiko Matsunaga
  • Patent number: 9989989
    Abstract: A system and method for measuring time delays in a non-periodic system can include receiving a first host signal including transitions deviating from a true periodic signal, removing deviations from the true periodic signal to form a second host signal, detecting a phase of the first host signal and the second host signal relative to a common stable clock signal, and comparing the detected phase of the first host signal and the second host signal to produce a signal indicative of the deviation of the first host signal from the true periodic signal.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 5, 2018
    Assignee: Raytheon Company
    Inventor: Andrew Kowalevicz
  • Patent number: 9935832
    Abstract: Mechanisms for designating particular nodes in a network as measurement endpoint (MEP) nodes are disclosed. Network topology information that identifies a plurality of nodes and communication links in a network is accessed. An initial chromosome generation is established. Each chromosome in the chromosome generation comprises a structure that identifies each node in the plurality of nodes that has an MEP capability and that includes an MEP state indicator for each node. A succession of a plurality of chromosome generations are generated by evolving each chromosome generation into a successive chromosome generation based on a genetic selection function and a fitness function until a threshold condition is met. An optimal chromosome from a successive chromosome generation is determined. A configuration command is sent to each node in a subset of the nodes that configures each node to operate as a MEP node.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: April 3, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Andreas Johnsson, Catalin Meirosu
  • Patent number: 9930627
    Abstract: A method for executing a network command using synchronized timers. The method includes obtaining, by a first device, a first current time value from a first timer of the first device, determining, by the first device, a time-to-execute value based on the first current time value, sending, from the first device to a second device, a first network command message including the network command and the time-to-execute value, repetitively obtaining, by the second device, a second current time value from a second timer of the second device, comparing, by the second device and in response to receiving the first network command message, the second current time value to the time-to-execute value extracted from the first network command message, and executing, by the second device and in response to the second current time value matching the time-to-execute value, the network command, wherein the first timer and the second timer are synchronized.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: March 27, 2018
    Assignee: Ciena Corporation
    Inventors: Gerard Leo Swinkels, Steve Clarke, Sharon Margaret Chisholm
  • Patent number: 9847800
    Abstract: A transmitter includes estimation circuitry and correction circuitry. The estimation circuitry is configured to estimate, based at least on a phase error between a local oscillator and a reference frequency, values for parameters that describe a frequency deviation experienced by a phase locked loop (PLL) during transmission of the data sample, wherein the PLL includes a local oscillator. The correction circuitry is configured to generate a correction term based at least on the estimated parameters; adjust the data sample with the correction term to generate a compensated data sample; and provide the compensated data sample for modulation of a carrier wave generated by the local oscillator.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: December 19, 2017
    Assignee: Intel IP Corporation
    Inventors: Giuseppe Li Puma, Victor Da Fonte Dias
  • Patent number: 9825745
    Abstract: Methods, systems, and devices are described for supporting common reference signaling in wireless communications systems. Some configurations introduce a phase discontinuity between common reference signal (CRS) transmissions on different subframes. This may address issues that may arise when a reduced CRS periodicity is utilized. Indicators may also be transmitted from base stations to user equipment (UEs) to indicate whether phase continuity may be assumed or not. Some configurations may support CRS sequence initialization. These tools and techniques may utilize an extended CRS sequence periodicity, which may increase the number of CRS sequences transmitted by a cell.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: November 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Wanshi Chen, Peter Gaal, Durga Prasad Malladi, Tao Luo, Yongbin Wei, Hao Xu
  • Patent number: 9824717
    Abstract: The respective occupancies of a set of audio buffers are controlled via a common target occupancy value common to all the buffers in the set. This common target may take non-integral values. For each buffer, the difference is taken between the occupancy value of the buffer and the common target occupancy value. A sample is dropped or repeated as the difference exceeds half a sample. A recursive sum is formed of the fractional parts of the difference measures from the set of buffers and the recursive sum is used to adjust the common target occupancy value, within a selected range of values.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: November 21, 2017
    Assignee: Snell Advanced Media Limited
    Inventor: Jeff Butters
  • Patent number: 9806976
    Abstract: A method is provided for performing a time measurement on a packet flow to be transmitted from a first node to a second node of a communication network. The method includes calculating a medium transmission time parameter indicative of an average of transmission time parameters relating to packets transmitted during a given block period; calculating a medium reception time parameter indicative of an average of reception time parameters relating to the same packets; and calculating a medium time measurement indicative of an average performance of the packet flow during the block period using the medium transmission time parameter and the medium reception time parameter.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: October 31, 2017
    Assignee: Telecom Italia S.p.A.
    Inventor: Mauro Cociglio
  • Patent number: 9807738
    Abstract: There is provided a communication control device including a radio communication unit which communicates with one or more terminal devices in a cell over a channel in which a link direction is allowed to be dynamically set for each sub-frame which is a unit of time in radio communication, and a control unit which controls allocation of communication resources to the terminal device based on the setting of the link direction of the channel and a location of the terminal device in the cell.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: October 31, 2017
    Assignee: Sony Corporation
    Inventors: Hiroaki Takano, Nishiki Mizusawa
  • Patent number: 9767106
    Abstract: In an embodiment, a method can include loading a first snapshot of data stored on a storage device, the first snapshot being verified. The method can further include capturing a second snapshot of data stored on the store device after waiting an interval of time from creation of the first snapshot. The method can further include generating a list of closed files between the two snapshots by differentiating the first snapshot and the second snapshot. The method can additionally include verifying the second snapshot by comparing the closed files in the list of closed files by in the second snapshot to the closed files in the storage device, which is an active snapshot. The method can also include deleting the first snapshot.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 19, 2017
    Assignee: EMC IP Holding Company LLC
    Inventors: Abhinav Duggal, Dheer Moghe
  • Patent number: 9769843
    Abstract: A method and system for providing control information for supporting high speed downlink and high speed uplink packet access are disclosed. A Node-B assigns at least one downlink control channel and at least one uplink control channel to a wireless transmit/receive unit (WTRU). The downlink control channel and the uplink control channel are provided to carry control information for both the downlink and the uplink. Conventional control channels, for downlink and uplink are combined into a reduced set of control channels for uplink and downlink. The Node-B and the WTRU communicate control information via the downlink control channel and the uplink control channel. The WTRU receives downlink data and transmits uplink data, and the Node-B receives uplink data and transmits downlink data based on the control information transmitted via the downlink control channel and the uplink control channel.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: September 19, 2017
    Assignee: InterDigital Technology Corporation
    Inventors: Arty Chandra, Stephen E. Terry
  • Patent number: 9749212
    Abstract: A multi-mainframe system problem determination method includes receiving, in a first computing system, a data collection trigger, coordinating, in the first computing system, synchronized diagnostic data collection with a second computing system, and delivering the diagnostic data to a storage medium.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 29, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David D. Chambliss, Joshua W. Knight, Ronald K. Kreuzenstein, John J. Lee, James A. Ruddy, John G. Thompson, Harry M. Yudenfriend
  • Patent number: 9713125
    Abstract: A method and apparatus for fast control channel feedback for multiple downlink carrier operations are disclosed. A wireless transmit/receive unit (WTRU) receives signals over a plurality of downlink carriers, generates feedback for each of the plurality of downlink carriers based on the received signals, and transmits via a plurality of antennas, the feedback for at least one of the plurality of downlink carriers over a first physical channel and feedback for another of the plurality of downlink carriers over a second physical channel.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: July 18, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Diana Pani, Benoit Pelletier, Lujing Cai, Paul Marnier, Christopher R. Cave, Rocco DiGirolamo
  • Patent number: 9705663
    Abstract: Disclosed are a communication system and a synchronization method for enabling synchronization of units included in the communication system in case of a communication line failure. In the communication system according to the present invention, all units are synchronized with the period of an ADSYNC outputted from a master unit when the ADSYNC, in which a data transmission preparation period and a data transmission period make a single cycle, is outputted from the master unit; slave units output a free-run ADSYNC when an ADSYNC is not outputted from the master unit; and, when a plurality of the slave units output free-run ADSYNCs, the slave units are synchronized with any one free-run ADSYNC from among the outputted free-run ADSYNCs.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: July 11, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Ju-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
  • Patent number: 9703316
    Abstract: An information processing apparatus that is capable of correcting a time-of-day management function in the information processing apparatus even in an environment where the time of day cannot be properly measured in the information processing apparatus in a power-saving mode. A first time of day is obtained from an external apparatus on a network. A second time of day is identified based on the number of input CPU clocks per prescribed time period. The number of input CPU clocks per prescribed time period is corrected based on the first time of day and the second time of day.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: July 11, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tomohiro Kimura
  • Patent number: 9699083
    Abstract: A frame search processing apparatus includes a frame information extraction unit (1) that extracts frame information from an input frame, a search processing unit (2) that compares the frame information with entry information, and a frame information output control unit (3) that controls output of the frame information to the search processing unit (2). The search processing unit (2) includes a plurality of comparison units that read out N pieces of entry information from a search table, and perform comparison between the entry information and the frame information at once.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: July 4, 2017
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuki Arikawa, Kenji Kawai, Yukikuni Nishida, Masami Urano, Keiichi Koike
  • Patent number: 9680507
    Abstract: A method includes determining, at a decoder of a first device, an offset value corresponding to an offset between a first particular packet and a second particular packet. The first device includes a de-jitter buffer. The method also includes transmitting the offset value to an encoder of a second device to enable the second device to send packets to the first device based on the offset value.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 13, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Subasingha Shaminda Subasingha, Venkatesh Krishnan, Vivek Rajendran, Venkatraman S. Atti, Chandra Mouli Polisetty
  • Patent number: 9613665
    Abstract: A method for performing memory interface control of an electronic device and an associated apparatus are provided, where the method includes the steps of: when it is detected that a phase difference between a data signal and a clock signal reaches a predetermined value, controlling the clock signal to switch from a first frequency to a second frequency, wherein both of the clock signal and the data signal are signals of a memory interface circuit of the electronic device, and the memory interface circuit is arranged for controlling a random access memory (RAM) of the electronic device; applying at least one phase shift to the data signal until a condition is satisfied; and controlling the clock signal to switch from the second frequency to the first frequency; wherein the memory interface circuit is calibrated with aid of the at least one phase shift.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: April 4, 2017
    Assignee: MEDIATEK INC.
    Inventors: Shang-Pin Chen, Bo-Wei Hsieh
  • Patent number: 9602366
    Abstract: A system and method for correcting clock discrepancy in simultaneous network traffic data captures in a multi-tiered, multi-session environment. The invention uses intrinsic constraints imposed by the nature of the traffic onto the possible temporal sequence of the packets, The invention uses the intrinsic restraints of the network architecture and the protocols used at each segment along with the time stamps in the various segments to determine both an offset and scale correction to the clock readings (timestamps) in the traces in order to obtain a correct temporal sequence of packets when using multiple capture agents/engines/network monitors.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 21, 2017
    Assignee: NetScout Systems, Inc.
    Inventor: Dmitrii Yurievich Manin
  • Patent number: 9584305
    Abstract: A source-synchronization interface circuit includes: a sender synchronous-to-asynchronous protocol converter that receives sender data and a sender clock and that has regenerative gain to resolve metastability during phase synchronization of the sender clock and a receiver clock; an asynchronous FIFO buffer with multiple stages that conveys phase information and data from the sender synchronous-to-asynchronous protocol converter to a receiver synchronous-to-asynchronous protocol converter; and a receiver synchronous-to-asynchronous protocol converter that receives the receiver clock and that has regenerative gain to resolve metastability during the phase synchronization.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: February 28, 2017
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Suwen Yang, Mark R. Greenstreet, Tarik Ono
  • Patent number: 9544215
    Abstract: A method and an apparatus for evaluating performance of a wireless network capillary channel are described, and relate to the field of mobile communications. The method may include: it is determined whether a network packet includes a payload or not, after obtaining the network packet on the wireless network capillary channel; when determining that the network packet includes the payload, retransmission rate and packet loss rate statistic processing, disorder rate statistic processing, and packet capture process packet loss rate statistic processing are performed; and when determining that the network packet does not include the payload, the packet capture process packet loss rate statistic processing is directly performed. The disclosure can evaluate channel performance better in a finer layer.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: January 10, 2017
    Assignee: ZTE Corporation
    Inventor: Jianhua Yin
  • Patent number: 9528412
    Abstract: An exhaust gas purification catalyst is recovered from the sulfur poisoning more appropriately.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: December 27, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Sakurai, Yuji Miyoshi, Toru Kidokoro
  • Patent number: 9526037
    Abstract: A method for providing indication of an SRVCC handover is disclosed. The method can include a first wireless communication device participating in a voice call with a second wireless communication device via a connection between the first wireless communication device and a first network. The method can further include the first wireless communication device determining a condition indicative of an impending SRVCC handover of the first wireless communication device from the first network to a legacy network. In response to the condition, the method can additionally include the first wireless communication device formatting a message including an indication that the first wireless communication device is going to perform the SRVCC handover and sending the message to the second wireless communication device prior to performance of the SRVCC handover.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 20, 2016
    Assignee: Apple Inc.
    Inventors: Samy Khay-Ibbat, Sarma V. Vangala, Sreevalsan Vallath, Navid Damji, Luciano Miguel Verger, Srinivasan Vasudevan, Shivesh Makharia, Sree Ram Kodali, Madhusudan Chaudhary, Jianxiong Shi
  • Patent number: 9509491
    Abstract: A data reception apparatus calculates an integrated number of bits by integrating the number of bits in a received bit string; calculates an integrated number of samples by integrating the number of samples obtained by oversampling each bit; obtains a fitting line indicating correspondence between the integrated number of bits and the integrated number of samples based on a plurality of points of which each point corresponds to either only a rise edge or only a fall edge of each bit in the received bit string; and determines a bit length in the received bit string based on the fitting line.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: November 29, 2016
    Assignee: DENSO CORPORATION
    Inventors: Keita Hayakawa, Hironobu Akita, Hirofumi Yamamoto
  • Patent number: 9497493
    Abstract: A video communication system having: an encoder coding input video data and outputting a video stream; and a packet processing part grouping into packets the output video stream from said encoder and outputting the same to a communication path; wherein said packet processing part generates an original data cluster consolidating a packet for each group of a prescribed number of MB processes and redundant data for correcting data errors of said original data cluster; and controls the insertion quantity of redundant data so that the combined number of bits of said original data cluster and said redundant data works out to be equal to or less than the target number of bits.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: November 15, 2016
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Mitsuhiro Okada, Hironori Komi, Taku Nakamura, Tomoyuki Myojin, Hiroki Mizosoe, Yusuke Yatabe
  • Patent number: 9490977
    Abstract: A method and apparatus for generating physical layer security keys is provided. Channel impulse response (CIR) measurements are recorded. Each CIR measurement is associated with a time-stamp. Where possible, the time-stamps are paired with time-stamps that are associated with another plurality of CIR measurements. The CIR data associated with the paired time-stamps is aggregated. Each of the aggregated CIR measurements is aligned, and at least one CIR measurement is selected for use in secret key generation.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: November 8, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Chunxuan Ye, Alexander Reznik, Yogendra C. Shah, Julien Closs, Frederic H. Truco
  • Patent number: 9480053
    Abstract: There is provided a communication control device including a radio communication unit which communicates with one or more terminal devices in a cell over a channel in which a link direction is allowed to be dynamically set for each sub-frame which is a unit of time in radio communication, and a control unit which controls allocation of communication resources to the terminal device based on the setting of the link direction of the channel and a location of the terminal device in the cell.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 25, 2016
    Assignee: Sony Corporation
    Inventors: Hiroaki Takano, Nishiki Mizusawa
  • Patent number: 9479573
    Abstract: The present disclosure is related to transmitting and receiving media channels, such as audio and video channels. These channels may be transmitted as packets from one or more transmitting devices to one or more receiving devices for playout. Certain embodiments of the present disclosure include systems, methods, and computer-readable media for determining latency of a data network for synchronized playout of received signals. Additionally, certain embodiments of the present disclosure include a systems, methods, and computer-readable media for synchronizing playout among devices connected to a data network.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: October 25, 2016
    Assignee: Audinate Pty Limited
    Inventors: Andrew White, Aidan Williams
  • Patent number: 9462270
    Abstract: Systems, apparatus and methods can operate to generate frame aligned digital video streams encoded at different bitrates from a common digital video stream. To provide uninterrupted playback of video content when a device switches from one stream encoded at one bit rate to the same digital video stream encoded at another bitrate, the video frames of the digital video streams can be aligned. To provide for proper frame alignment between fragments representing the same frame of a digital video stream encoded at different bitrates, video encoding device(s) can mark decoded digital pictures for subsequent encoding at different bit rates when the division of a program reference clock value by the fragment period approaches an integer value.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 4, 2016
    Assignee: ARRIS Enterprises, Inc.
    Inventors: John Lan, Santhana Chari
  • Patent number: 9432312
    Abstract: In one embodiment, a message is received at a node in a network indicating that the node is classified as a critical node, and requesting the node to proactively time-stamp data packets. Data packets are received from one or more child nodes of the node, and the node selects a data packet of the received data packets to time-stamp. Then, the node proactively inserts a time-stamp in the selected data packet. The time-stamped data packet is sent toward a central management node.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: August 30, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Sukrit Dasgupta, Jean-Philippe Vasseur, Grégory Mermoud
  • Patent number: 9420475
    Abstract: A radio communication device may be provided. The radio communication device may include: a receiver configured to receive data; a buffer configured to buffer a variable amount of the data; a reception condition determiner configured to determine a reception condition indicating a condition under which the receiver receives the data; and a buffer amount setter configured to set the amount of the data based on the determined reception condition.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: August 16, 2016
    Assignee: INTEL DEUTSCHLAND GMBH
    Inventors: Jerome Parron, Peter Kroon