Using Synchronization Information Contained In A Frame Patents (Class 370/509)
  • Patent number: 8306071
    Abstract: A method includes: receiving a burst including payload and a synchronization field, wherein the synchronization field contains a synchronization pattern; selecting, from a plurality of expected synchronization patterns, a target synchronization pattern dependent on an operating mode; comparing the received synchronization pattern against the target synchronization pattern; and if the received synchronization pattern is of the target synchronization pattern, processing the payload; otherwise, discarding the burst.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: November 6, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Bradley M. Hiben, Robert A. Biggs, David L. Muri, Donald G. Newberg, Darrell J. Stogner, Alan L. Wilson, David G. Wiatrowski
  • Patent number: 8306882
    Abstract: A method and system for differential billing based on the access network through which data traffic flows between a subscriber and a service provider. The service provider may measure the amount of data traffic that flows to and from the subscriber and may determine which access network the traffic flows through on its way between the subscriber and the service provider. Based at least in part on the identity of the access network used, the service provider may determine a fee to charge the subscriber for handling the measured data flow.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: November 6, 2012
    Assignee: Sprint Spectrum L.P.
    Inventor: Manish Mangal
  • Patent number: 8300668
    Abstract: A system and method of synchronizing transmissions in a simulcast system by continuously adjusting the signal transmission delay. Timing information that includes a GPS timestamp is continuously generated at a source site, encoded into a timing packet which along with a content signal can be transported over a network link such as T1/E1 or a packet switched network to multiple transmitter sites. Once received at a transmitter site, the timing packet along with the content signal is delayed by an adjustable delay. The GPS timestamp in the received timing packet is compared to a GPS timestamp that is generated at the transmitter site upon arrival of the timing packet. Based on a variance between that comparison and the value of a user-specified target delay, the delay of the received signal is adjusted to synchronize signal transmissions in the simulcast system.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: October 30, 2012
    Assignee: Harris Corporation
    Inventors: Junius A. Kim, Keyur R. Parikh
  • Publication number: 20120269205
    Abstract: A method for synchronizing frames when a frame synchronization pattern is lost is provided. The method includes forcing a frame state machine to an operate mode following an initial synchronization, searching for the frame synchronization pattern on a bit level while running the frame state machine in the operate mode, and correcting for synchronization on the bit level while running the frame state machine in the operate mode when synchronization is lost. The initial synchronization includes a search mode.
    Type: Application
    Filed: April 19, 2011
    Publication date: October 25, 2012
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: Jamal Haque, Darryl I. Parmet, Halil N. Altan, Kurt Holmquist
  • Patent number: 8295267
    Abstract: When the synchronization information, transmitted from a synchronization information output unit of a clock master side device, is detected by a synchronization information detection unit, the clock slave side device associates the synchronization information with the timestamp information at the time of detection of the synchronization information. Based on the timestamp information associated with the currently received synchronization information, the timestamp information associated with at least one synchronization information up to the synchronization information received last time and transmission period information of the synchronization information, a calculation/decision unit decides whether or not a predetermined condition is met. When the condition is met, the calculation/decision unit supplies the currently received synchronization information to a clock synchronization technique function unit.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: October 23, 2012
    Assignee: NEC Corporation
    Inventors: Yuuki Akae, Atsuya Yamashita
  • Patent number: 8296386
    Abstract: A method for writing information to a first memory location controlled by a first computing system from a second memory location controlled by a second computing system that interfaces with the first computing system via a network connection is provided.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: October 23, 2012
    Assignee: QLOGIC, Corporation
    Inventor: Charles Micalizzi, Jr.
  • Patent number: 8295301
    Abstract: Communication systems that use different physical layer (PHY) protocols can coexist on a communication medium (e.g., a powerline medium) by using an Inter-PHY Protocol (IPP). The different protocols may use different signal modulation schemes but still may have some features in common. The IPP includes a resource sharing mechanism that regulates access to the communication medium by devices functioning as communication devices (for example, devices communicating over a power line). A subset of devices that communicate among each other form a logical network that shares the medium with other logical networks that use either the same PHY protocol or a different PHY protocol.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: October 23, 2012
    Assignee: Qualcomm Atheros, Inc.
    Inventors: Lawrence W. Yonge, III, Srinivas Katar, William E. Earnshaw, Stefano Galli, Akio Kurobe, Hisao Koga, Nobutaka Kodama, Jose Abad Molina, Oleg Logvinov, Paul Dixon, Olivier Isson
  • Patent number: 8295311
    Abstract: The present invention relates to a method for detecting a pilot pattern, comprising a pilot signal sp(t), in a received signal r(t) implemented in an Orthogonal Frequency Division Multiplexing (OFDM) system. The method comprises the steps: computing a value of a log-likelihood function (?0,?0) for a hypotheses space specified by the pilot signal sp(t) and an initial time frequency offset (?0,?0), and relating the computed value to a reference value to detect the pilot pattern.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: October 23, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Jiann-Ching Guey
  • Patent number: 8290094
    Abstract: Some embodiments disclosed herein relate to a method. In the method, a duration of a first synchronization pulse is measured. A fixed, predetermined number of ticks are equally spaced at a first time interval over the first sync pulse, regardless of the duration of the first synchronization pulse. A duration of a first data pulse is then measured by periodically incrementing a tick count value at the first time interval during the entire duration of the first data pulse. The tick count value at an end of the first data pulse is then correlated to a first digital value encoded on the first data pulse.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: October 16, 2012
    Assignee: Infineon Technologies AG
    Inventors: Andreas Kolof, Dietmar König
  • Patent number: 8290105
    Abstract: A signal reception device is disclosed that is capable of detecting symbol synchronization timing with high precision in accordance with a condition of a propagation path even in an environment involving multi-path interference. The signal reception device adopts an OFCDM transmission scheme or a multi-carrier transmission scheme. The signal reception device includes a received signal information calculation unit to calculate received signal information representing a signal reception condition of a received signal; an output combination unit to combine correlation values in a predetermined section obtained by correlation detection based on the received signal information; and a symbol timing detection unit to detect a symbol synchronization timing based on the combined value.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: October 16, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Satoshi Nagata, Noriyuki Maeda, Hiroyuki Atarashi, Mamoru Sawahashi
  • Patent number: 8290002
    Abstract: A coarse timing synchronization acquisition method in a mobile communication system is applied to the timing synchronization acquisition of a mobile communication system that transmits the same signal blocks repeatedly, which comprises: starting from the beginning time instant of timing synchronization acquisition, iteratively calculating the delay correlation accumulation (DCA) values at K samples, when K is the number of DCA values at each time slot; M time slots are searched in each frame, the position corresponding to the maximum DCA value is taken as the estimate of timing synchronization position; M timing synchronization position estimates are obtained, and among these, one timing synchronization position estimate is selected as the candidate for the current frame timing synchronization position, and it is decided whether the candidate is reliable; after L frames are searched, a predicted timing synchronization position of the next frame is obtained by using the L timing synchronization positions.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: October 16, 2012
    Assignee: ZTE Corporation
    Inventor: Qiang Li
  • Patent number: 8284872
    Abstract: A burst mode receiver including a CDR circuit that does not perform bit synchronization determination at a wrong position even when a burst signal waveform containing a distortion is input is provided. The burst mode receiver includes a CDR circuit for reproducing clock and data from a received signal, a bit synchronization determination circuit for determining whether the CDR circuit is in an optimum phase, a waveform distortion determination circuit for determining from the received signal whether there is waveform distortion, and a CDR output enable determination circuit for determining whether an output of the CDR circuit is valid or invalid. The CDR output enable determination circuit performs CDR output enable determination based on a bit synchronization determination result and a waveform distortion determination result.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: October 9, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Jun Sugawa, Hiroki Ikeda, Masayoshi Yagyu
  • Patent number: 8284888
    Abstract: A clock and data recovery device receives a serial data stream and produces recovered clock and data signals. The clock and data recovery device operates over a range of frequencies and without use an external reference clock. A first loop supplies a first clock signal to a second loop. The second loop modifies the first clock signal to produce the recovered clock signal and uses the recover clock signal to produce the recovered data signal. The first loop changes the frequency of the first clock signal based on frequency comparison and data transition density metrics.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: October 9, 2012
    Inventor: Ian Kyles
  • Patent number: 8279986
    Abstract: Provided are: plural circuit components including a circuit component which constitutes a receiving unit receiving a signal sequence which is arranged so that a desired signal and a signal different from the desired signal are lined up in time series, the desired signal indicating desired data which includes at least one of text data, sound data, image data, and a computer program product; and an operating parameter changing unit which changes an operating parameter of at least one of the plural circuit components, during a period in which the receiving unit receives the signal different from the desired signal.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: October 2, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Nobuyoshi Kaiki
  • Patent number: 8279945
    Abstract: Methods for compensating timing errors in an A/V stream are provided. An embodiment of the methods includes: receiving a plurality of encoded video frames of a current Group of pictures (GOP) from the video encoder and a plurality of encoded audio frames; when an error occurs in the video encoder, utilizing a most recent encoded video frame of a previous GOP received from the video encoder as a reference to generate a plurality of dummy video frames; and utilizing the dummy video frames to pad the current GOP.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: October 2, 2012
    Assignee: Mediatek Inc.
    Inventors: Chi-Chun Lin, Shih-Rong Kao
  • Patent number: 8275001
    Abstract: An interworking function (IWF) at an edge of a packet network comprises a primary receiver and a backup receiver. The primary receiver receives data packets and timing information from a packet network. The primary receiver interworks data from the data packets into a data signal that is based on a local clock signal. The primary receiver uses the timing information from the packet network to adjust the frequency of the local clock signal such that it is synchronous to a network clock signal, such as a clock signal at an IWF, referred to as the “transmitting IWF,” that transmitted the data packets. In addition, the primary receiver from time-to-time provides timing information, such as a frequency control word, to the backup receiver, which uses such timing information to synchronize a clock signal of the backup receiver to the network clock signal upon an occurrence of a switchover from the primary receiver to the backup receiver.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: September 25, 2012
    Assignee: Adtran, Inc.
    Inventor: Jason R. Ferguson
  • Patent number: 8275025
    Abstract: Methods and apparatus are provided for pseudo asynchronous testing of receive paths in serializer/deserializer (SerDes) devices. A SerDes device is tested by applying a source of serial data to a receive path of the SerDes device during a test mode. The receive path substantially aligns to incoming data using a bit clock. A phase is adjusted during the test mode of the bit clock relative to the source of serial data to evaluate the SerDes device. The source of serial data may be, for example, a reference clock used by a phase locked loop to generate the bit clock. The phase of the bit clock can be directly controlled during the test mode, for example, by a test phase control signal, such as a plurality of interpolation codes that are applied to an interpolator that alters a phase of the bit clock.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 25, 2012
    Assignee: LSI Corporation
    Inventors: Christopher J. Abel, Parag Parikh, Vladimir Sindalovsky
  • Patent number: 8270545
    Abstract: Certain embodiments of the present disclosure relate to a method for tracking of a carrier frequency offset. A soft combined frequency tracking discriminator is proposed as a part of the closed loop structure that can provide fast tracking of the frequency offset in an initial pull-in mode, and can also track small residual frequency variance in a fine-tracking mode.
    Type: Grant
    Filed: March 1, 2009
    Date of Patent: September 18, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Junqiang Li, Madihally J. Narasimha, Je Woo Kim
  • Patent number: 8270390
    Abstract: In a wireless communication system, a central control unit 31 comprises a synchronizing means for synchronizing a frame for an base station-mobile station communication with that for an inter-mobile station direct communication based on control information used for the base station-mobile station communication, when a second frequency is used for the inter-mobile station direct communication which is different from a first frequency used for the base station-mobile station communication. The central control unit 31 also comprises an allocation means for allocating a band and a frequency for the inter-mobile station direct communication in accordance with an allocation request from a base station 30 or a mobile station 40. Frames for the base station-mobile station communication and the inter-mobile station direct communication are synchronized by utilizing control information 55 for the base station-mobile station communication instead of the conventional control information provided by the mobile station.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: September 18, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Minoru Kosaka
  • Patent number: 8270342
    Abstract: In a multi-radio platform that operates in two networks, both the announced beacon intervals and the actual beacon intervals in one network may be periodically increased and decreased in defined amounts so that the beacons will not overlap scheduled communications with the other network. The determination of how much and how often to adjust these beacon intervals may be based, at least partially, on the minimum increments in which the beacons intervals are permitted to be adjusted, and on the scheduled communications intervals of the other network.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: September 18, 2012
    Assignee: Intel Corporation
    Inventors: Xue Yang, Hsin-Yuo Liu, Mathijs C. Walma, Shlomo Avital
  • Patent number: 8265006
    Abstract: Various embodiments are directed to a synchronization channel or preamble structure that may be used in mobile WiMAX systems designed to operate in accordance with the IEEE 802.16e-2005 standard and/or the evolving IEEE 802.16m standard. In one embodiment, the synchronization channel (preamble) structure may comprise a base station group identifier field to store a k-bit base station group identifier, a base station identifier field to store an m-bit base station identifier, and a sector identifier field to store an n-bit sector identifier. The base station group identifier may be associated with a paging group identifier in a wireless communications system such as mobile WiMAX network. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: September 11, 2012
    Assignee: Intel Corporation
    Inventors: Sassan Ahmadi, Muthaiah Venkatachalam
  • Patent number: 8259887
    Abstract: A method for detecting a specific timing from a synchronization channel is described. A signal with a known sequence is received. Two or more correlation values between the received signal and the known sequence are calculated at two or more positions. The two or more correlation values are compared. A determination is made whether the position of the known sequence has been shifted based on the comparison. A specific timing of a synchronization channel is detected based on the determination.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 4, 2012
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Kimihiko Imamura, Prem L. Sood
  • Patent number: 8259621
    Abstract: A method and a system for simultaneously supporting network sharing and data synchronization are provided for a first operating system (OS) and a second OS, wherein the first OS is connected to a network. The present method establishes a virtual network between the first OS and the second OS. Then, the second OS is connected to the first OS through the virtual network, so as to connect to the network through the first OS. The virtual network can also be used for synchronizing data of the first and second OS. As a result, the convenience of using different OS at the same time can be improved.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: September 4, 2012
    Assignee: HTC Corporation
    Inventors: Yuan-Tai Lin, Ching-Keng Fang
  • Patent number: 8259759
    Abstract: A system and method for calculating and applying a metric that is calculated over a binary interval that corresponds in length to a preamble. The value of the metric reflects the likelihood that the interval is the preamble. A lower value for the metric suggests that the interval is more likely to be the preamble. In an embodiment, the metric is calculated beginning at an initial location in the bitstream, and then recalculated beginning at each of several successive locations in the bitstream. This results in a set of calculated metrics. The start of the preamble is considered likely to be the initial location of the interval that corresponds to the metric having the lowest value.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: September 4, 2012
    Assignee: The Johns Hopkins University
    Inventors: A. Roger Hammons, Jr., Frederic M. Davidson
  • Patent number: 8249632
    Abstract: The present invention relates to a method of generating a downlink frame. The method of generating the downlink frame includes generating a first sequence and a second sequence for identifying cell groups; generating a first scrambling sequence and a second scrambling sequence that are one-to-two mapped to the sequence number of the primary synchronization signal; scrambling the first sequence with the first scrambling sequence and scrambling the second sequence with the second scrambling sequence; and generating a secondary synchronization signal including the scrambled first sequence and second sequence and mapping the secondary synchronization signal to a frequency domain.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: August 21, 2012
    Assignees: Samsung Electronics Co., Ltd, Electronics and Telecommunications Research Institute
    Inventors: Il Gyu Kim, Young Jo Ko, Hyeong Geun Park, Kap Seok Chang, Hyo Seok Yi, Young-Hoon Kim, Seung Chan Bang, Kyoung Joon Lee
  • Patent number: 8249049
    Abstract: In an example embodiment, a method for synchronizing clocks between a plurality of clocked devices where one of the plurality of clocked devices is not directly synchronized with another of the plurality of clocked devices. Clock offset and a clock drift between a first clock associated with a first device and a second clock associated with a second is directly determined based on signals exchanged between the first and second devices. Clock offset and clock drift between the second clock and a third clock associated with a third device is directly determined based on signals exchanged between the second and third devices. A clock offset and clock drift between the first clock and third clock is determined based on a difference between the clock offset and drift between the first and second clocks and the clock offset and drift between the second and third clocks.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: August 21, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew Aaron Silverman, Paul Jeffrey Stager, Brian Donald Hart
  • Patent number: 8249113
    Abstract: Methods, apparatuses, and systems are presented for switching between channels of encoded media data involving receiving encoded media data including reference frames and dependent frames for a plurality of channels, wherein each dependent frame refers to at least one reference frame. Frames associated with a first channel from the plurality of channels are decoded to generate a decoded signal for the first channel. While decoding frames associated with the first channel, data corresponding to at least one reference frame associated with a second channel from the plurality of channels are stored. In response to a control signal for switching from the first to the second channel, at least one dependent frame associated with the second channel is decoded by utilizing the stored data corresponding to the at least one reference frame associated with the second channel, to generate a decoded signal for the second channel.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: August 21, 2012
    Assignee: Broadlogic Network Technologies, Inc.
    Inventors: Weimin Zhang, Bin-Fan Liu
  • Publication number: 20120207183
    Abstract: A method of synchronizing a local estimation of global network time of a receiving node on a network to a global network time reference is provided. The free running nodes receive precise time protocol synchronization messages and determine a ratio and an offset based on time data extracted from the messages.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 16, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Pavlo Bobrek, Jeffrey VanDorp, Harry Molling
  • Patent number: 8244266
    Abstract: A method, apparatus and computer product for scheduling in a cellular system using a wired RS is disclosed. In one aspect, a BS collects CQIs of all MSs within a cell, calculates a transmittable data amount for each of the MSs according to the CQI, selects an MS having a highest PF metric, and allocates resources to the selected MS.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: August 14, 2012
    Assignees: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation, Sogang University
    Inventors: Ki-Uk Song, Seong-Taek Hwang, Won-Jin Sung, Jin-Woo Choe, Gwy-Un Jin, Seong-Min Kim
  • Patent number: 8243714
    Abstract: An apparatus includes a global synchronization interface and multiple modules. The global synchronization interface includes a global synchronization driver for driving a global synchronization signal. The modules include corresponding local synchronization interfaces, each local synchronization interface having a local synchronization driver for driving a local synchronization signal. In a local mode, the modules ignore the global synchronization signal and synchronize corresponding operations according to the local synchronization signal and a global reference signal. In a global mode, the modules ignore the local synchronization signal and synchronize the corresponding operations according to the global synchronization signal and the global reference signal.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: August 14, 2012
    Assignee: Agilent Technologies, Inc.
    Inventors: Howard Hilton, Darrin Dennis Rath, Gerald J. Ringel
  • Patent number: 8238332
    Abstract: A signal transmitting device includes: a synchronous-data detecting unit that detects, from parallel data specified by a predetermined format and including video data and audio data, synchronous data for controlling synchronization of the parallel data; an audio extracting unit that stores the audio data in an audio memory; a clock extracting unit that extracts a reference clock from the parallel data; a multiplexing unit that multiplexes the audio data and the synchronous data in a horizontal auxiliary data space of the video data; a control unit that controls, on the basis of the synchronous data and the reference clock, timing of the multiplexing unit for multiplexing the audio data with the video data; and a parallel serial converting unit that converts the video data multiplexed with the audio data by the multiplexing unit into a transmission stream specified by a Level A of a 3G-SDI format.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: August 7, 2012
    Assignee: Sony Corporation
    Inventor: Shigeyuki Yamashita
  • Patent number: 8238377
    Abstract: Network timing is derived from the PSTN and distributed through the network to gateways capable of deriving timing from the incoming UDP stream. The derived timing has the correct frequency for voice telephony without using external timing sources or extraneous hardware components. For example, a digital signal processor (DSP) can derive the timing from a timed TDM bus and distribute messages, such as IP messages, to other gateways or port networks. The other gateways and port networks use the incoming stream to extract the timing which is then used to time their TDM bus. The port networks and gateways can also distribute other streams to other gateways in a fan-out type of arrangement. This internally generated timing can be used, for example, for Circuit Emulated Services (CES).
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: August 7, 2012
    Assignee: Avaya Inc.
    Inventors: Ted Morrow, Ed Mooney
  • Patent number: 8238446
    Abstract: Provided are a method and apparatus for reproducing digital broadcasting. The method includes parsing an input video stream to extract a presentation time stamp (PTS) and a compressed frame and decoding the extracted compressed frame to generate frames sequentially. If a PTS corresponding to a current frame does not exist, a virtual PTS is generated based on the extracted PTS The extracted PTS or the virtual PTS is compared with a system time clock (STC) in synchronization with a vertical synchronization signal and an output time of a display frame is determined.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chin-youl Kim
  • Patent number: 8238490
    Abstract: A method for determining a Doppler shift of a first signal is provided. First, a plurality of Doppler frequency hypotheses is combined to obtain a joint Doppler signal. The first signal is the correlated according to the joint Doppler signal and a plurality of code signals with phases corresponding to a series of code phase hypotheses to obtain a series of correlation results which are then examined to determine whether the Doppler shift does lie in the Doppler hypotheses. A fine Doppler search is then performed to determine the Doppler shift when the Doppler shift lies in the Doppler hypotheses.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: August 7, 2012
    Assignee: Mediatek Inc.
    Inventors: Hsin-Chung Yeh, Kuan-I Li
  • Patent number: 8233470
    Abstract: Embodiments of a multi-radio wireless communication device and methods for synchronizing wireless network and Bluetooth (BT) communications are generally described herein. Other embodiments may be described and claimed. In some embodiments, a BT radio module adjusts a master clock signal by a predetermined step size before each subsequent BT transmission in response to a frame sync pulse from a wireless network radio module to reduce a time difference between subsequent frame sync pulses and synchronization reference points of BT slots.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 31, 2012
    Assignee: Intel Corporation
    Inventors: Xue Yang, Eran Sudak, Xingang Guo
  • Patent number: 8233507
    Abstract: A transmitter including a plurality of input lanes, a substitutor module, and an interleaver module. The plurality of input lanes is configured to receive input symbols including data symbols and idle symbols, wherein the input symbols are arranged into columns of concurrently received input symbols, and wherein each of the columns includes one input symbol from each of the plurality of input lanes. The substitutor module is configured to, at intervals, replace one of the columns with a column of alignment symbols. The substitutor module is further configured to replace an immediately subsequent one of the columns with a column of disposable symbols; and replace one or more immediately subsequent ones of the columns with columns of boundary symbols uninterrupted by disposable symbols. The interleaver module is configured to interleave symbols from the substitutor module between a first transmit lane and a second transmit lane.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: July 31, 2012
    Assignee: Marvell International Ltd.
    Inventor: William Lo
  • Patent number: 8229026
    Abstract: A transmission signal processing method is provided, for generating a first OFDM modulation signal and a second OFDM modulation signal which are transmitted in an identical frequency band, by utilizing a first antenna for transmitting the first OFDM modulation signal and by utilizing a second antenna for transmitting the second OFDM modulation signal. The method includes a step of generating the first OFDM modulation signal and the second OFDM modulation signal utilizing a plurality of OFDM modulation signal generators, and a step of outputting the first OFDM modulation signal to the first antenna and the second OFDM modulation signal to the second antenna.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: July 24, 2012
    Assignee: Panasonic Corporation
    Inventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
  • Patent number: 8228892
    Abstract: An aggregation device performs a synchronous processing so that a synchronous delivery may be made from a plurality of base stations through a broadcasting channel. A BSN (104) gives, when it sends broadcasting data for the synchronous delivery to an AN (102) and an AN (103), a period number and a sequence number are added to the broadcasting data so that the data to be sent from the AN (102) and the AN (103 can be synchronously delivered.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: July 24, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Yosuke Takahashi, Shiro Mazawa, Akihiko Yoshida, Daigo Takayanagi
  • Patent number: 8228923
    Abstract: A network device having a system performance measurement unit employing one or more global time stamps for measuring the device performance is disclosed. The device includes an ingress circuit, a global time counter, an egress circuit, and a processor. The ingress circuit is configured to receive a packet from an input port while the global time counter generates an arrival time stamp in accordance with the arrival time of the packet. The egress circuit is capable of forwarding the packet to other network devices via an output port. The processor, in one embodiment, is configured to calculate packet latency in response to the arrival time stamp.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: July 24, 2012
    Assignee: Tellabs Operations, Inc.
    Inventors: Naveen K. Jain, Venkata Rangavajjhala
  • Patent number: 8229052
    Abstract: An apparatus and method for transmitting/receiving an S-SCH in an Institute of Electrical and Electronics Engineers (IEEE) 802.16m wireless communication system are provided. A method for transmitting, by a transmitter, a Secondary Synchronization CHannel (S-SCH) in a communication system includes generating a sequence depending on a cell IDentification (ID), determining a subcarrier set comprising subcarriers to map the generated sequence, based on a Fast Fourier Transform (FFT) size and a segment ID, and mapping the generated sequence to the subcarriers of the determined subcarrier set.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Eun Park, Jae-Weon Cho, Seung-Hoon Choi, Chi-Woo Lim, Song-Nam Hong
  • Patent number: 8223682
    Abstract: A receiving system and a data processing method are disclosed. The receiving system includes a receiving unit, a demodulator, a first handler, a second handler, and a third handler. The receiving unit receives a broadcast signal comprising fast information channel (FIC) data, transmission parameter channel (TPC) data, and mobile service data packetized into an RS frame. The demodulator demodulates the broadcast signal. The first handler configures an ensemble from the RS frame, so as to acquire first signaling information including access information of the mobile service. The second handler receives second signaling information of the mobile service, so as to acquire content identification information of a second data type from the received second signaling information. And, the third handler extracts a mobile service identifier and a content identifier of a first data type from the first signaling information and constructs content identification information of a second data type.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: July 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jae Hyung Song, Jong Yeul Suh, Chul Soo Lee, Gomer Thomas, Jin Pil Kim, Ho Taek Hong, Joon Hui Lee
  • Patent number: 8223807
    Abstract: Techniques for providing an uninterrupted data stream to a mobile node are disclosed. In a first technique, a time stamp is inserted at some point in the wireless network and the time stamp is used along with a tolerance value to determine when to transmit a packet in a data stream. By transmitting the packets at the same adjusted time, transmission to mobile nodes is synchronized. A second technique uses duplication of data stream content to avoid an interruption in the data stream at a mobile node. A third technique uses an error correcting code to avoid interruption of the data stream at a mobile node. A fourth technique uses a sequence number inserted into packets in the data stream at the content server to synchronize transmission to mobile nodes.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: July 17, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Janakiraman Senthilnathan, Matthew H. Harper
  • Patent number: 8218578
    Abstract: Disclosed is a broadcast receiving apparatus including an analog time information extracting member to extract time information included in an analog broadcast signal; a digital time information extracting member to extract time information included in a digital broadcast signal; a time setting member to automatically set time of the clock in accordance with time information; a display control member to output and display a setting screen to set a channel for time setting, the setting screen being used to set which broadcast channel is selected, the channel including time information which is used by the time setting member to set time of the clock; and an operation input unit to input operation command from external.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: July 10, 2012
    Assignee: Funai Electric Co., Ltd.
    Inventor: Takehiro Onomatsu
  • Patent number: 8208460
    Abstract: Methods and systems are provided for in-band signaling of at least two simultaneous digital media streams in a network, the two simultaneous streams being a part of a media session. Each of the at least two simultaneous streams is generated from a corresponding source. The generated simultaneous streams are synchronized by using a unique marker packet. Each synchronized stream is transmitted to a destination corresponding to each source.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: June 26, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: James Tighe, Frank Roland Zerangue, Jr., Rowan McFarland
  • Patent number: 8208498
    Abstract: Systems and methods for addressing the de-synchronization of the cryptosync between the network and the mobile stations (eNB) that can occur at mobility are addressed. De-synchronization is resolved by forwarding HFN and PDCP Sequence Number(s) from the source eNB to the target eNB. In order to avoid re-use of a cryptosync for a given key, a backward offset from the initial COUNT value is used by the target eNB. These approaches do not require an over-the-air signaling and the COUNT value handling in the network is transparent to the mobile station.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Masato Kitazoe, Sai Yiu Duncan Ho
  • Publication number: 20120147905
    Abstract: The present invention discloses a method of detecting and correcting skew across a plurality of transmitting lanes. Through the use of an N framer system, including a frame start signal and a frame synchronization signal, skew can be detected and corrected by writing data from a plurality of framers into offsetting bit locations of a plurality of buffers. The present invention also provides a method of transmitting data in a multiple lane distribution (MLD) transmission system.
    Type: Application
    Filed: February 17, 2012
    Publication date: June 14, 2012
    Applicant: ALTERA CANADA CO.
    Inventor: Wally Haas
  • Patent number: 8200166
    Abstract: The transmitter receives information on a computing architecture of a receiver. A controller in the transmitter forms and transmits receiver-specific instructions based on data to be delivered and the information on the computing architecture. The controller in the receiver controls processing of the data on the basis of the instructions.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 12, 2012
    Assignee: Elektrobit Wireless Communications Oy
    Inventors: Tuomo Tuomikoski, Kari Autio, Iikka Mäkelä, Jukka-Pekka Nuutinen, Jouko Ryhänen, Juha Valtanen
  • Patent number: 8199776
    Abstract: A system for supporting a burst transmission procedure includes a burst manager that divides a selected content item into individual content segments. A transmitter then transmits the content segments in a substantially concurrent manner over different corresponding transmission channels. One or more electronic devices receives and stores the transmitted content segments. A content manager of the electronic device performs a reassembly procedure to convert the content segments into the originally-transmitted content item for utilization by a device user.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: June 12, 2012
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Fredrik Carpio, Nikolaos Georgis
  • Patent number: 8199867
    Abstract: Described is an apparatus for suppressing spurious spectral lines in a frame based bit-serial data stream, in which frames include payload data and frame markers. The apparatus includes means (16) for randomizing first frame marker elements (START) in a first position within each frame and means (18) for correlating second frame marker elements (STOP) in a second position within each frame with the randomized first frame marker element.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: June 12, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Bengt Erik Jonsson, Per Lars Paul Ingelhag
  • Patent number: 8194636
    Abstract: Timing synchronization for mesh networks is disclosed. A temperature calibration data is received. A plurality of previously stored calibration values each corresponding to different temperatures is adjusted based at least in part on the received temperature calibration data. A temperature measurement is received. A first clock offset is determined based at least in part on the adjusted plurality of previously stored calibration values and the temperature measurement.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: June 5, 2012
    Assignee: Dust Networks, Inc.
    Inventors: Lance R. Doherty, Robert M. Shear, Jonathan Simon, Zhenqiang Ye