Using Synchronization Information Contained In A Frame Patents (Class 370/509)
  • Patent number: 11121794
    Abstract: Aspects of the present disclosure provide for the transmission of various synchronization signals with variable periodicity. For synchronization signals with long periodicity, in some aspects of the disclosure, the synchronization signals may be transmitted as single-frequency-network (SFN) synchronization signals and/or the synchronization signals may be repeated a number (N) of times within a synchronization burst to reduce user equipment (UE) search latency and improve UE measurement accuracy. In some examples, the synchronization signals may be repeated within a synchronization burst using a repetition pattern that may be configurable based on the periodicity of transmission or fixed for one or more periodicities of transmission.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: September 14, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Hung Ly, Heechoon Lee, Tingfang Ji
  • Patent number: 11115141
    Abstract: Embodiments of a method and a device are disclosed. In an embodiment, a method for operating a wired communications device involves including a frame boundary bit sequence and a random data sequence as a preamble of a bit stream, encoding the bit stream into an encoded bit stream, and transmitting the encoded bit stream using the wired communications device.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: September 7, 2021
    Assignee: NXP B.V.
    Inventor: Sujan Pandey
  • Patent number: 11108539
    Abstract: A technique for synchronizing time in a machine-based system. The technique includes receiving time reference information for a first operational element included in the system; analyzing the time reference information against a known correct timing state for the first operational element; determining that the first operational element is not properly synchronized based on the time reference information and the known correct timing state; and in response to determining that the first operational element is not properly synchronized, causing a fault indicator associated with the first operational element to be displayed on a machine that monitors a plurality of operational elements included in the system.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: August 31, 2021
    Assignee: Disney Enterprises, Inc.
    Inventors: Ketan N. Kurani, Rab Mukraj, Michael J. Strein
  • Patent number: 11108566
    Abstract: A method and system are provided for transferring digital assets in a digital asset network. Network users can be centrally enrolled and screened for compliance. Standardized transfer processes and unique identifiers can provide a transparent and direct transfer process. Digital assets can include sufficient information for ensuring that a value will be provided, including one or more digital signatures, such that value can be made immediately available to recipients.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 31, 2021
    Inventors: Mondo Jacobs, Ajith Thekadath, Lidia Daldoss, David Henstock
  • Patent number: 11101226
    Abstract: A method and a high-frequency module that includes a high frequency die that may include multiple die pads; a substrate that may include a first buildup layer, a second buildup layer and a core that is positioned between the first buildup layer and a second buildup layer; a line card that may include multiple line card pads; and multiple conductors that pass through the substrate without reaching a majority of a depth of the core, and couple the multiple die pads to the multiple line card pads.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: August 24, 2021
    Assignees: DustPhotonics Ltd., XSIGHT LABS LTD.
    Inventors: Guy Koren, Ben Rubovitch
  • Patent number: 11050501
    Abstract: A microcontroller includes a packet matching circuit, a hardware timer circuit, and a processor. The packet matching circuit is configured to match contents of received packets to the microcontroller and identify whether a packet has been received. The hardware timer circuit is configured to provide a synchronization timestamp based on a signal from the packet matching circuit that a synchronization packet has been matched, and provide a follow-up timestamp based on a signal from the packet matching circuit that a follow-up packet has been matched after reception of the synchronization packet. The processor is configured to adjust a clock base to determine a synchronized clock base based upon the synchronization timestamp and upon the follow-up timestamp.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: June 29, 2021
    Assignee: Microchip Technology Incorporated
    Inventor: Michael Rentschler
  • Patent number: 11022999
    Abstract: A local watch skew compensation device of the present invention is a client device which is synchronized with the other client device to provide a time-aware service including: a local time providing unit which supplies first local time data and second local time data in accordance with a local clock; a media scheduling unit which receives first media data and second media data from the other client device, schedules first playout time of the first media data using the first local time data, and schedules second playout time of the second media data using the second local time data; and a skew monitoring unit which requests global time data to a global time server when a difference between the first playout time and the second playout time exceeds a skew threshold value, and the first media data and the second media data are different types of media data.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: June 1, 2021
    Assignee: Center of Human-Centered Interaction for Coexistence
    Inventors: Bum Jae You, Joong Jae Lee, Eun Mi Lee, Tae Young Lee
  • Patent number: 11012172
    Abstract: A relay device accumulates received frames that are not determined as a specific frame in a queue and transfers the frames accumulated in the queue one by one according to a predetermined rule. The relay device transfers a received frame that is determined as a specific frame priority to the frames accumulated in the queue without accumulating the specific frame in the queue.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: May 18, 2021
    Inventors: Yoshifumi Kaku, Eiichiro Kusano
  • Patent number: 10938502
    Abstract: The present invention provides a method and system for accurate IPG compensation of USXGMII multi-channel. The method comprises acquiring the length of a correspondingly deleted IPG unit between the inserted two sets of AM corresponding to each logical channel according to the working rate of a physical link, the number of distributed logical channels, the effective transmission rate corresponding to each logical channel, and the length of a set of AM inserted into each logical channel; and acquiring the data deletion interval corresponding to each logical channel, and the length of the IPG data to be deleted between the data deletion intervals according to the length of the correspondingly deleted IPG unit of each logical channel and the number of the inserted AM. The data transmission rate is enabled to be precisely matched with the bearing rate of the logical channel, thereby meeting the performance requirements.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: March 2, 2021
    Inventors: Dong Wang, Wei He, Chunjian Yuan
  • Patent number: 10736061
    Abstract: A wireless device receives configuration parameters of cells grouped into timing advance groups (TAGs). The TAGs comprise a secondary TAG comprising licensed secondary cell(s) and unlicensed secondary cell(s). Activation command(s) to activate the licensed secondary cell(s) and the unlicensed secondary cell(s) are received. A first secondary cell in the secondary TAG is selected as a timing reference cell for the secondary TAG based on: the first secondary cell being an activated secondary cell, and the first secondary cell being a licensed secondary cell. uplink signals with transmission timing derived based on the first secondary cell as the timing reference cell are transmitted via the secondary TAG.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 4, 2020
    Assignee: Ofinno, LLC
    Inventor: Esmael Hejazi Dinan
  • Patent number: 10686637
    Abstract: The present invention improves reception characteristics of a receiving apparatus based on OFDM. The receiving apparatus includes: a window timing selection unit that determines Fourier transform window start and end timings for a received signal(s) based on OFDM, based on a signal-to-interference power ratio and signal power in a Fourier transform window; and a Fourier transform unit that performs Fourier transform on the received signal(s) in accordance with the Fourier transform window start and end timings outputted by the window timing selection unit.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: June 16, 2020
    Inventors: Yasunori Futatsugi, Naoto Ishii
  • Patent number: 10664373
    Abstract: A self-diagnosing microcontroller includes a microprocessor having first and second applications, and a hardware abstraction layer. The microprocessor is operably coupled to an analog-to-digital converter. The hardware abstraction layer sequentially sets a first pre-check indicator to a first fault value for each encoded channel number of a second plurality of encoded channel numbers that does not have an identical and corresponding encoded channel number in a first plurality of encoded channel numbers indicating an incorrect channel was read from the analog-to-digital converter, and sends the first pre-check indicator to the first application.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: May 26, 2020
    Assignee: LG Chem, Ltd.
    Inventor: Kerfegar K. Katrak
  • Patent number: 10591887
    Abstract: According to various aspects, exemplary embodiments are disclosed of devices, systems, and methods related to controlling machines using operator control units and programmable logic controllers (PLCs). In an exemplary embodiment, a machine control system includes a machine, a programmable logic controller coupled to the machine, and an operator control unit. The operator control unit includes a user interface configured to receive one or more commands from an operator for controlling the machine, and a wireless interface configured to transmit a message based on the one or more commands received via the user interface. The programmable logic controller is configured to, in response to receiving the message transmitted by the operator control unit, transmit one or more control signals to the machine to control operation of the machine. The system does not include any machine control unit (MCU) separate from the operator control unit and the programmable logic controller.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: March 17, 2020
    Inventor: David Stagg
  • Patent number: 10503807
    Abstract: The method for measuring a time stamp unit of a remote device includes: obtaining m sets of sampled data, m is a positive integer, and m>1; calculating m estimated time stamp units according to the time stamps when packets are transmitted and the time points when the previously transmitted data packets and the subsequently transmitted data packets arrive at the measuring point; selecting, from the m estimated time stamp units, an estimated time stamp unit; and calculating a time stamp unit of the remote device according to the selected estimated time stamp unit.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: December 10, 2019
    Inventors: Hua Jiang, Shengjin Wu, Debu Huang
  • Patent number: 10481178
    Abstract: A method for marking relevant data within an acquired set of data in accordance with an embodiment includes receiving a location of a first synchronization event within a synchronizing time pulse synchronized with the acquired set of data, searching the synchronizing time pulse within a predetermined window for the first synchronization event based on the location, identifying the first synchronization event based on the search, and obtaining data from the acquired set of data within an offset range determined based on the identified first synchronization event. The steps are then iteratively repeated for a number of periods.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 19, 2019
    Inventors: Jon Martens, David Judge, Jamie Tu
  • Patent number: 10477258
    Abstract: A method for creating an announcement stream for a geographic region is provided. The method receives, at a designated computer system, characterizing metadata for a first audio/video stream; analyzes a second audio/video stream to obtain characterizing metadata for the second video stream; compares, with the computer system, the characterizing metadata for the first video stream to the characterizing metadata for the second video stream to generate offset data; and calculates timing information corresponding to segment boundaries for the second video stream using the offset data.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: November 12, 2019
    Inventors: David A. Kummer, Steven M. Casagrande
  • Patent number: 10462798
    Abstract: To optimize transmission periods corresponding to kinds of feedback information, and minimize a reduction in system throughput caused by disagreement of the transmission period with the optimal period, by setting transmission frequencies individually with flexibility corresponding to the kinds of feedback information for a mobile station apparatus to transmit to a base station apparatus, in a wireless communication system in which a mobile station apparatus B measures reception quality of a signal received from a base station apparatus A, and transmits feedback information generated based on the reception quality to the base station apparatus A, the base station apparatus A allocates resources of transmission timing corresponding to the kinds of feedback information, and the mobile station apparatus B transmits a plurality of kinds of feedback information to the base station apparatus using the allocated resources.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: October 29, 2019
    Inventors: Yosuke Akimoto, Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Patent number: 10431898
    Abstract: In accordance with one or more embodiments, a communication device includes an antenna having a feed point and an aperture. A feedline is coupled to the feed point of the dielectric antenna. A multi-input multi-output (MIMO) transceiver is coupled to feedline, the MIMO transceiver facilitating a transmission of first electromagnetic waves to the feed point of the antenna, wherein the first electromagnetic waves are guided by the feedline, wherein the first electromagnetic waves propagate along the feedline via a plurality of guided wave modes without requiring an electrical return path, wherein the first electromagnetic waves convey first data in accordance with one or more MIMO techniques and wherein the first electromagnetic waves generate first free-space wireless signals at the aperture of the antenna in accordance with the one or more MIMO techniques.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: October 1, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III
  • Patent number: 10372662
    Abstract: A universal serial bus (USB) communication system includes a USB host that divides one data stream into first through (n)th sub-data streams and transmits the first through (n)th sub-data streams via first through (n)th USB host channels, respectively, a USB device that receives the first through (n)th sub-data streams via first through (n)th USB device channels, respectively and restores the data stream by combining the first through (n)th sub-data streams, and first through (n)th cables that are connected to the first through (n)th USB host channels via first through (n)th USB host ports and connected to the first through (n)th USB device channels via first through (n)th USB device ports. Here, the first through (n)th cables connect the first through (n)th USB host channels to the first through (n)th USB device channels, respectively.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: August 6, 2019
    Inventors: Cheon-Su Lee, Rohitaswa Bhattacharya
  • Patent number: 10361747
    Abstract: A method of synchronizing transmission of signals from a network node to a receiver includes generating a synchronization signal transmission pattern in which transmission resources used for transmission of the synchronization signals in regularly spaced time intervals are changed in successive ones of the time intervals, and transmitting synchronization signals from the network node in accordance with the synchronization signal transmission pattern. Related network nodes and user equipment nodes are disclosed.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: July 23, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Johan Axnäs, Kumar Balachandran, Dennis Hui
  • Patent number: 10341672
    Abstract: A method and a system for media synchronization are described. The method for media synchronization may include collecting stream source information, generating network delay information between stream sources by performing a delay test between the stream sources, setting synchronization information of a stream source corresponding to a specific channel based on the collected stream source information and the network delay information, measuring network delay with at least one user terminal to receive the stream source, and updating the synchronization information based on the measured network delay.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: July 2, 2019
    Inventors: JunKyun Choi, Hyo Jin Park
  • Patent number: 10321420
    Abstract: A wireless device receives at least one control message comprising configuration parameters of a plurality of cells grouped into a plurality of timing advance groups (TAGs). The wireless device selects a first cell in a TAG according to a criterion. The TAG comprises one or more licensed cells and one or more unlicensed cells. The criterion comprises the first cell being a licensed cell. The wireless device transmits uplink signals in the TAG. Transmission timing of the uplink signals is derived employing the first cell as a timing reference cell.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: June 11, 2019
    Assignee: Ofinno, LLC
    Inventor: Esmael Hejazi Dinan
  • Patent number: 10296456
    Abstract: Tile based interleaving and de-interleaving of row-column interleaved data is described. In one example, the de-interleaving is divided into two memory transfer stages, the first from an on-chip memory to a DRAM and the second from the DRAM to an on-chip memory. Each stage operates on part of a row-column interleaved block of data and re-orders the data items, such that the output of the second stage comprises de-interleaved data. In the first stage, data items are read from the on-chip memory according to a non-linear sequence of memory read addresses and written to the DRAM. In the second stage, data items are read from the DRAM according to bursts of linear address sequences which make efficient use of the DRAM interface and written back to on-chip memory according to a non-linear sequence of memory write addresses.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: May 21, 2019
    Assignee: Imagination Technologies Limited
    Inventors: Paul Murrin, Adrian J. Anderson, Mohammed El-Hajjar
  • Patent number: 10292103
    Abstract: Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes initiating a contention based process for transmitting a synchronization message during a discovery time interval of a discovery time period. The synchronization message includes a first timestamp of the wireless communication apparatus. The method further includes selectively transmitting the synchronization message based on a master preference value of the wireless communication apparatus.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 14, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh Paul Abraham, George Cherian, Alireza Raissinia, Guido Robert Frederiks
  • Patent number: 10255130
    Abstract: A semiconductor device includes a first timer that includes a first counter, a second timer that includes a second counter and a controller that includes a CPU in provision of a technology for efficiently diagnosing a fault of a timer that is built in the semiconductor device such as a microcontroller and so forth. The first timer performs time synchronization with the time of external equipment arranged outside the semiconductor device. The controller compares a count value of the first counter with a count value of the second counter and detects a malfunction of the second timer on the basis of a result of comparison.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: April 9, 2019
    Assignee: Renesas Electronics Corporation
    Inventor: Shinichi Suzuki
  • Patent number: 10225126
    Abstract: The present invention provides a synchronization signal receiving method, including: receiving, by a receive end, a synchronization sequence sent by a transmit end, where the synchronization sequence includes a carrier frequency synchronization sequence, the carrier frequency synchronization sequence is zc(m)=e±j?m(m+1+2q)/L, m=0, 1, . . . , L?1, q?Z, L indicates a length of the carrier frequency synchronization sequence, q indicates a parameter of the carrier frequency synchronization sequence, Z indicates an integer set, e±j?m(m+1+2q)/L indicates the (±j?m(m+1+2q)/L)th power of e, and e is a natural constant; and performing, by the receive end, frequency offset estimation according to the received synchronization sequence, to obtain a frequency offset estimation value. With the technical solutions of embodiments of the present invention, accuracy of frequency offset estimation can be improved.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: March 5, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yiling Wu, Tong Ji, Zhiqin Yu, Weiliang Zhang
  • Patent number: 10216567
    Abstract: Various aspects of systems for generating parity bits for encoding based on a portion of a generator matrix are disclosed. In one aspect, a generator matrix includes a sub-block including a first set of elements circularly shifted from an identity matrix by a first amount, and a second set of elements circularly shifted from the identity matrix by a second amount. Bit permutation circuitry generates first bits according to input bits and the first amount. Each of the first bits is provided as input to a corresponding XOR device of XOR devices. Each of a set of storage registers stores an output of the corresponding XOR device. The bit permutation circuitry generates second bits according to the input bits and the second amount. The XOR devices perform bit-wise XOR operations on the stored outputs and the generated second bits, to provide a portion of the parity bits.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: February 26, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventor: Andrew Blanksby
  • Patent number: 10128869
    Abstract: A decoder includes one or more Variable-Node Processors (VNPs) that hold respective variables, and logic circuitry. The logic circuitry is configured to decode a code word of an Error Correction Code (ECC), which is representable by a set of check equations, by performing a sequence of iterations such that each iteration involves processing of at least some of the variables, to hold one or more auxiliary equations derived from the check equations, so that a number of the auxiliary equations is smaller than a number of the check equations, to evaluate the auxiliary equations, during the sequence of iterations, using the variables, and, in response to detecting that the variables satisfy the auxiliary equations, to terminate the sequence of iterations and output the variables as the decoded code word.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: November 13, 2018
    Assignee: Apple Inc.
    Inventors: Yonathan Tate, Moti Teitel
  • Patent number: 10104565
    Abstract: Channel state information (CSI) feedback in long term evolution (LTE) and LTE-Advanced (LTE-A) networks including unlicensed spectrum is disclosed in which a base station obtains clear channel assessment (CCA) result information from neighboring base stations, either directly or by determining such results from measurement or reports from user equipment (UE) served by the base station. The base station may then generate control signaling based on the CCA result information for transmission to the one or more UEs served by the base station.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 16, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Srinivas Yerramalli, Wanshi Chen, Tao Luo, Peter Gaal, Durga Prasad Malladi, Yongbin Wei, Hao Xu, Tingfang Ji, Naga Bhushan, Aleksandar Damnjanovic
  • Patent number: 10069807
    Abstract: A method and a system for encrypting a data stream are provided. The method includes receiving a multimedia data stream including multiple data elements; dividing the multimedia data stream into M data sub-streams based on sequence of the multiple data elements in the multimedia data stream, where the M data sub-streams follow a synchronous clock period which is M times of a clock period of the multimedia data stream, where M is a positive integer greater than 1; and generating a key at a predetermined time interval with a new pipeline algorithm, and encrypting the data elements in the M data sub-streams with the key and the complicated control logic, and the predetermined time interval is N times of the clock period of the M data sub-streams, where N is a positive integer.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: September 4, 2018
    Inventors: Chao Sun, Jin Su, Hongfeng Xia
  • Patent number: 10057048
    Abstract: A time-interleaved analog-to-digital converter (ADC) having M ADCs can increase the sampling speed several times compared to the sampling speed of just one ADC. Some time-interleaved ADCs randomize the order of the M ADCs sampling the analog input signal to improve dynamic performance. Randomization causes the output data of the M ADCs to be valid at randomized time instants. When the output data is sampled using a rising edge of a fixed clock, the output data can be valid just before, valid right at, or only valid for a short period of time after, the rising edge. Therefore, the setup or hold time can be very short. To address this issue, information regarding the randomized selection of an ADC is used to control the sampling occurring in the fixed clock domain and avoid the short setup or hold time.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: August 21, 2018
    Assignee: ANALOG DEVICES, INC.
    Inventor: Eric Otte
  • Patent number: 10044435
    Abstract: A method for transparent on-board routing of data packets at high bit rate is implemented by a telecommunication system comprising an origin transmitting station, a first destination receiving station, a second destination receiving station, and a plurality of at least two satellites. The origin transmitting station segments high bit rate data streams into coded or uncoded packets each having the structure of a coded or uncoded DVB-S2 baseband frame BBFRAME; and the origin transmitting station inserts, for each segmented BBFRAME packet, coded or uncoded, an on-board routing label of a single piece respectively associated with the coded or uncoded BBFRAME packet. The on-board routing label contains an identifier of the destination receiving station associated with the coded BBFRAME packet, out of the first destination receiving station and the second destination receiving station.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: August 7, 2018
    Assignee: THALES
    Inventors: Cédric Baudoin, Nicolas Chuberre, Jean-Didier Gayrard
  • Patent number: 10009132
    Abstract: Time stamp replication within wireless networks is described. In an embodiment, a wireless station receives an input time stamp and uses this input time stamp to generate an output time stamp. The wireless station transmits the output time stamp to wireless stations in one of a number of groups which make up the wireless network. The output time stamp is generated to compensate for delays between receiving the input time stamp and transmitting the output time stamp such that output time stamp which is transmitted at a time T corresponds to the value that the input time stamp would have had if it had been received at time T (and not at a time earlier than T). This may, therefore, reduce or eliminate independent time stamp errors and jitter caused by multiple disparate systems and processes.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: June 26, 2018
    Assignee: Imagination Technologies Limited
    Inventor: Ian Knowles
  • Patent number: 10004099
    Abstract: A method of extended DRX paging includes a base station that transmits extended DRX configuration information and a User Equipment (UE) receives the extended DRX configuration from the base station. The UE determines a first number of frames that are included in a hyper-frame based at least in part on the extended DRX configuration information and selects a hyper-frame number. The hyper-frame number is based at least in part on the extended DRX configuration information. The UE maintains a hyper-frame count and the hyper-frame count is incremented after each hyper-frame. The UE then goes into sleep mode and the UE determines a wake up time before a standard DRX cycle that occurs during the selected hyper-frame. The UE may also determine a first wake up time and a second wake up time based on the selected hyper-frame number and synchronization error between a first cell and a second cell.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: June 19, 2018
    Assignee: MEDIATEK INC.
    Inventors: Johan Johansson, Chia-Chun Hsu, Li-Chuan Tseng
  • Patent number: 9973292
    Abstract: This invention relates to methods and systems for estimating offset and skew using linear programming. Embodiments of the invention relate to methods and systems which apply linear programming principles to links with asymmetric transmission rates which are estimated from an exchange of timing messages (for example under IEEE 1588 PTP). Further embodiments provide for the estimation of clock offsets using linear programming techniques when the skew is known or estimated.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 15, 2018
    Assignees: Khalifa University of Science, Technology and Research, British Telecommunications plc, Emirates Telecommunications Corporation
    Inventor: James Aweya
  • Patent number: 9954670
    Abstract: Described herein are architectures, platforms and methods for (NFC) frame bit detection. A frame bit detector includes a sample-based bit detector that receives samples which may be data and non-data (noise), identifies data bits at every sample input time, and the likelihoods that the identified data bits are part of data. The frame detector includes a maximum likelihood frame detector configured to receive bits from the sample-based bit detector and the likelihood of each bit that the bit is data, and calculate frame likelihood.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: April 24, 2018
    Assignee: Intel IP Corporation
    Inventor: Jie Zhu
  • Patent number: 9949157
    Abstract: A receiver receives a first packet signal including first position information indicating a position of a radio device from the radio device. A storage stores a list containing the first position information. An acquirer obtains second position information indicating the position of the terminal device. A determiner determines whether it is possible for the receiver to receive a second packet signal from the radio device based on the second position information and on the first position information contained in the list. An estimator estimates that a reception failure occurs in the receiver if the receiver fails to receive the second packet signal when the determiner determines that it is possible to receive the second packet signal.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: April 17, 2018
    Inventors: Toshio Nakakuki, Yoshinori Hatayama
  • Patent number: 9942867
    Abstract: A synchronization apparatus in a control base station is disclosed. A GNSS synchronization unit receives a GNSS signal through a GNSS antenna to obtain time information. A clock generation unit adjusts a clock of the control base station based on the time information provided by the GNSS synchronization unit. A traffic base station synchronization unit transmits and receives information with a traffic base station through a wired connection. A user data sample generation unit generates data required by a mobile user including network time information, and transmits the data to the mobile user equipment through a control base station antenna.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: April 10, 2018
    Assignee: HITACHI, LTD.
    Inventors: Tao Zhao, Miao Jiang, Lu Geng, Meng Zheng, Sheng Zhou, Zhisheng Niu
  • Patent number: 9906324
    Abstract: Selective deciphering of a received signal, as taught herein, provides a number of advantages, including greater efficiency through the elimination or at least reduction of wasted decoding cycles. The technique, such as practiced in a user equipment or other wireless communication device, capitalizes on the advantageous recognition herein that the demodulation results obtained for at least some types of received data blocks may be inspected or otherwise evaluated for characteristic patterns that are indicative of whether the data block was or was not ciphered for transmission. That evaluation informs the selective deciphering decision.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: February 27, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Ravitej Ballakur, Sajal Kumar Das, Suyog Moogi
  • Patent number: 9894124
    Abstract: A network communication system may include talkers, listeners, and bridges configured to begin communication of a data stream without first establishing a reservation for the communication. Thereafter, a reservation protocol may be used to confirm the communication, and tear down the communication if the communication is not confirmed or when the communication is complete.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: February 13, 2018
    Assignee: Harman International Industries, Incorporated
    Inventor: David Olsen
  • Patent number: 9838456
    Abstract: The description generally relates to a system designed to synchronize the rendering of a media file between a master device and a sister device. The system is designed so that a media file is simultaneously rendered on a master device and a sister device beginning from identical temporal starting points.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 5, 2017
    Inventors: Gene Fein, Edward Merritt
  • Patent number: 9831973
    Abstract: A method for developing TDM data with embedded control data includes obtaining signal data and control data, formatting the signal data and the control data into a plurality of channels of a DIN signal, and transmitting the DIN signal on one line of a 3-bit TDM bus. A multichannel input device includes a control extractor receptive to the three-bit TDM bus and operative to extract CNTL data from the DIN data, a DAI receptive to the 3-bit TDM bus and the channel select input and operative to develop a SIGNAL data output, and a DAC block including a DAC, the DAC block being receptive to the SIGNAL data and the CNTL data.
    Type: Grant
    Filed: May 17, 2014
    Date of Patent: November 28, 2017
    Assignee: Maxim Intergrated Products, Inc.
    Inventors: Matthew D. Felder, Brian D. Trotter
  • Patent number: 9820243
    Abstract: The invention relates to a method in a radio base station for scheduling data transmissions to a user equipment in a first cell. The radio base station is comprised in a telecommunications network comprising at least the first cell and a second cell wherein the radio base station serves at least the first cell. A transmission time of the first cell is divided into a first radio frame comprising a first number of subframes synchronized to a clock. A transmission time of the second cell is divided into a second radio frame comprising an equal number of subframes of equal time length as the first radio frame. The second radio frame is being synchronized to the same clock as the first radio frame.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: November 14, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Roberth Gustavsson, Jacob Österling
  • Patent number: 9819456
    Abstract: Systems and methods are disclosed for detection of a selected signal pattern, such as a servo sector preamble, and for frequency offset determination. A circuit may be configured to divide a signal into detection windows of a selected size, and sample the signal a selected number of times within each detection window. The circuit may then determine an error value for each detection window based on values of the samples for each detection window, and determine the preamble is detected when a threshold number of most-recently sampled detection windows have error values below a threshold value. The circuit may then organize the sample values corresponding to the preamble into groups, and calculate phase estimates representing a phase at which the groups were sampled. The circuit may determine a frequency offset based on the phase estimates, and modulate the sampling frequency according to the frequency offset.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: November 14, 2017
    Assignee: Seagate Technology LLC
    Inventors: Jason Vincent Bellorado, Marcus Marrow
  • Patent number: 9749057
    Abstract: An optical device may include a modulator. The modulator may receive an optical signal. The modulator may modulate the optical signal to include a first channel and a second channel. The modulator may modulate the optical signal based on a training pattern associated with detecting a skew. The modulator may cause the first channel to interfere with the second channel. The modulator may perform a power measurement on the first channel and the second channel. The modulator may determine the skew based on the power measurement and the training pattern. The modulator may time delay the first channel or the second channel to align the skew based on the skew.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: August 29, 2017
    Assignee: Juniper Networks, Inc.
    Inventors: Yang Yue, Bo Zhang, Robert C. Lofland, Jason T. O'Neil, Qiang Wang, Jon J. Anderson
  • Patent number: 9702974
    Abstract: The invention relates to a method for operating at least one ultrasonic sensor (4, 6) of a driver assistance system (2) in a motor vehicle (1), wherein an output sound signal (SA) of the ultrasonic sensor (4, 6) is modulated in accordance with a type of modulation and by means of this modulation, a specific codeword is impressed on the output sound signal (SA). For at least two mutually different functionalities (8 to 12) of the driver assistance system (2), different types of modulation are in each case used for the modulation of the output sound signal (SA) and/or in each case different lengths of the codeword.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: July 11, 2017
    Assignee: VALEO Schalter und Sensoren GmbH
    Inventors: Michael Hallek, Dietmar Gruedl, Anton Lill, Heinrich Gotzig
  • Patent number: 9648628
    Abstract: A link scheduling apparatus and method based on inter-link interference information sharing technique for use in a Device to Device (D2D) communication system is provided. A link scheduling method of a transmission node in a wireless communication system supporting direct communication between the transmission and recipient nodes includes receiving interference information of at least one recipient node from at least one recipient node, the interference occurring from at least one transmission node to at least one reception node, scheduling links based on the interference information; and transmitting data according to the scheduled links.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: May 9, 2017
    Assignees: Samsung Electronics Co., Ltd., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Chiwoo Lim, Sang-Hyo Kim, Jin Whan Kang, Kyungkyu Kim, Daegyun Kim, Seunghoon Park, Chung-ki Cho
  • Patent number: 9634860
    Abstract: In the method according to the invention for communicating between installations, which are organized in an order according to a sortable feature, for example installation numbers, in a wind farm, in which information transmitted by an installation in the form of a message is received by all other installations in the wind farm, a cyclically recurring, temporal transmission interval is set up. A point in time in the transmission interval at which the installation can transmit a message is assigned to each installation on the basis of the position thereof in the order, wherein points in time are organized from the start of the transmission interval, starting from the installation number at the first position in the order, in accordance with the position in the order. The start of the transmission interval is synchronized in all installations using a message from the installation at the first position in the order.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 25, 2017
    Assignee: SENVION SE
    Inventor: Lars Stille
  • Patent number: 9615386
    Abstract: A wireless device includes a preamble detector configured to identify preambles transmitted via a random access channel of a wireless network. The preamble detector includes preamble false alarm logic. The preamble false alarm logic is configured to set a preamble false alarm detection window, and compare, to one another, preambles identified in the false alarm detection window. The preamble false alarm logic is configured to identify, based on the comparison, a largest of the preambles in the false alarm detection window, and reject all but the identified largest of the preambles as false alarm detections.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: April 4, 2017
    Inventors: Jing Jiang, Mingjian Yan, Aleksandar Purkovic, Constantin Bajenaru
  • Patent number: 9600021
    Abstract: An operating clock synchronization adjusting method, for an induction type power supply system, includes receiving a plurality of data pulses, by a supplying-end module, according to a clock of a microprocessor of the supplying-end module, for generating a plurality of data frames. A period between first data pulses corresponding to starting bits of a first detecting data frame and a second detecting frame among the plurality of data frame is calculated, for acquiring a data frame period. A period between the first data pulse of the second data frame and a second data pulse of the second data frame is calculated, for acquiring a bit period. The bit period and a bit time threshold are compared for determining whether to adjust the clock of the microprocessor according to the data frame period and a frame time threshold.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 21, 2017
    Assignee: Fu Da Tong Technology Co., Ltd.
    Inventors: Ming-Chiu Tsai, Chi-Che Chan