Direct Sequence Patents (Class 375/140)
  • Patent number: 10770411
    Abstract: A method of protecting a first chip in a multi-chip stack includes determining an electrical characteristic of a conductive loop. The conductive loop extends over a top portion of the first chip. The conductive loop also extends through the first chip and within a top portion of a second chip. The top portion of the second chip is adjacent to a bottom portion of the first chip. The method further includes determining whether the electrical characteristic indicates that an attack is being made to determine contents or operation of the first chip.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 8, 2020
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Clement Champeix, Nicolas Borrel
  • Patent number: 10764264
    Abstract: A technique for authenticating network users is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for authenticating network users. The method may comprise receiving, from a client device, a request for connection to a network. The method may also comprise evaluating a security context associated with the requested connection. The method may further comprise assigning the client device one or more access privileges based at least in part on the evaluation of the security context.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: September 1, 2020
    Assignee: Avaya Inc.
    Inventors: Ravi Chakravarthi Kumar, Tal I. Lavian, Vasant Sahay, Nirmalendu Das, Biju Sajibhavan Kunjukunju, David Burton Levi, Philippe Michelet, Shmuel Nehama
  • Patent number: 10747692
    Abstract: A processing accelerator includes a shared memory, and a stream accelerator, a memory-to-memory accelerator, and a common DMA controller coupled to the shared memory. The stream accelerator is configured to process a real-time data stream, and to store stream accelerator output data generated by processing the real-time data stream in the shared memory. The memory-to-memory accelerator is configured to retrieve input data from the shared memory, to process the input data, and to store, in the shared memory, memory-to-memory accelerator output data generated by processing the input data. The common DMA controller is configured to retrieve stream accelerator output data from the shared memory and transfer the stream accelerator output data to memory external to the processing accelerator; and to retrieve the memory-to-memory accelerator output data from the shared memory and transfer the memory-to-memory accelerator output data to memory external to the processing accelerator.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: August 18, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mihir Mody, Niraj Nandan, Hetul Sanghvi, Brian Chae, Rajasekhar Reddy Allu, Jason A. T. Jones, Anthony Lell, Anish Reghunath
  • Patent number: 10735123
    Abstract: A pseudo-random noise (PRN) code generator is provided. The PRN code generator includes a register controller; a digitally controlled oscillator (DCO); a primary code generator configured to generate a primary code chip; and a secondary code generator configured to generate a secondary code chip. The primary code generator and the secondary code generator each include: a Weil code generator configured to generate a Weil code chip; a memory code generator configured to generate a memory code chip; a Golden code generator configured to generate a Golden code chip; and a first multiplexer configured to select the Weil code chip, the Golden code chip, or the memory code chip as the primary code chip or the secondary code chip. The PRN code generator also includes a first XOR gate configured to XOR the primary code chip and the secondary code chip to generate a PRN code chip.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: August 4, 2020
    Assignee: Honeywell International Inc.
    Inventors: Xiao Cao, Yunlong Huang
  • Patent number: 10616848
    Abstract: A method is disclosed for synchronization, comprising obtaining baseband signal samples of a baseband information signal having an in-phase signal sample and a quadrature signal sample, the baseband information signal having been generated by mixing a received modulated carrier signal with a local oscillator (LO) signal having an LO frequency, the modulated carrier signal being an in-phase signal and quadrature signal having a substantially uncorrelated nature and derived from different input data sets; determining an offset frequency rotation based on an estimated residual correlation between the in-phase signal samples and the quadrature signal samples; and, deriving synchronization information from the offset frequency rotation, wherein the received modulated carrier signal is a quadrature-modulated signal with arbitrary orthogonal in-phase and quadrature signal components.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: April 7, 2020
    Assignee: PhasorLab, Inc.
    Inventor: Joshua C. Park
  • Patent number: 10565114
    Abstract: Provided herein is a computer-implemented method. The computer-implemented method includes updating, by a processor, a value of a delta field of an entry of a data structure indexed for the processor. The computer-implemented method also includes comparing, by the processor, a predefined threshold for a global field corresponding to the delta field and the value of the delta field. The computer-implemented method also includes rolling, by the processor, the value of the delta field into the global field when an absolute value of the value of the delta field meets or exceeds the predefined threshold for the global field. Note that the data structure is stored in a first area of a memory in communication with the processor that is separate from a second area of the memory storing the global field.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: February 18, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Harris M. Morgenstern, Steven M. Partlow, Christopher L. Wood
  • Patent number: 10552326
    Abstract: Provided herein is a computer-implemented method. The computer-implemented method includes updating, by a processor, a value of a delta field of an entry of a data structure indexed for the processor. The computer-implemented method also includes comparing, by the processor, a predefined threshold for a global field corresponding to the delta field and the value of the delta field. The computer-implemented method also includes rolling, by the processor, the value of the delta field into the global field when an absolute value of the value of the delta field meets or exceeds the predefined threshold for the global field. Note that the data structure is stored in a first area of a memory in communication with the processor that is separate from a second area of the memory storing the global field.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: February 4, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Harris M. Morgenstern, Steven M. Partlow, Christopher L. Wood
  • Patent number: 10530757
    Abstract: Mechanisms support machine-to-machine service layer sessions that can span multiple service layer hops where a machine-to-machine service layer hop is a direct machine-to-machine service layer communication session between two machine-to-machine service layer instances or between a machine-to-machine service layer instance and a machine-to-machine application. Mechanisms are also disclosed that illustrate machine-to-machine session establishment procedures for oneM2M Session Management Service supporting multiple resources.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: January 7, 2020
    Assignee: Convida Wireless, LLC
    Inventors: Dale N. Seed, Lijun Dong, Guang Lu, Michael F. Starsinic
  • Patent number: 10505765
    Abstract: This disclosure describes methods, apparatus, and systems related to a channel estimation field (CEF) for various standards, for example, the 802.11ay standard, for single carrier (SC) MIMO channel estimation. In one embodiment, the CEF can use Golay complementary sequences. In another embodiment, the Golay complementary sequences can be defined similar to Golay complementary sequences definitions that can be found in various legacy standards, for example, the legacy 802.11ad standard. Various embodiments of the disclosure can allow channel estimation in the time domain and/or frequency domain, having small or negligible inter-stream interference. Various embodiments of the disclosure can enable an extendable structure for various M×N MIMO configurations, where M and N are positive integers.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: December 10, 2019
    Assignee: Intel IP Corporation
    Inventors: Artyom Lomayev, Alexander Maltsev, Yaroslav P. Gagiev, Assaf Kasher, Michael Genossar, Vladimir Kravtsov, Carlos Cordeiro
  • Patent number: 10498624
    Abstract: Systems and methods for adaptive router failover in Linux-based computing systems are disclosed. Embodiments may include configuring a Linux-based computing system to have access to at least a first router and a second router. Embodiments may further include transmitting one or more data packets from the Linux-based computing system to another computing system via the first router. Embodiments may also include identifying a failure in the first router and, in response to identification of the failure in the first router, automatically switching use of the first router and second router by the Linux-based computing system. Embodiments may further include transmitting one or more data packets from the Linux-based computing system to another computing system via the second router after switching the use of the first router and second router by the Linux-based computing system.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: December 3, 2019
    Assignee: Unisys Corporation
    Inventors: James R Heit, Robert L Bergerson, Jason C Schultz, John A Peters
  • Patent number: 10491434
    Abstract: The present invention describes a method and system for simultaneous transmission of data to coherent and non-coherent receivers. The method at the transmitter includes retrieving a base ternary sequence having a pre-defined length, obtaining one or more ternary sequences corresponding to data to be transmitted and transmitting the obtained one or more ternary sequences by the transmitter. The method steps at the receiver includes receiving one or more ternary sequences corresponding to the data transmitted, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the base ternary sequence by the receiver if the receiver is a coherent receiver, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the absolute of the base ternary sequence by the receiver if the receiver is a non-coherent receiver and detecting the transmitted data based on the cyclic shifts corresponding to maximum correlation values.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sujit Jos, Chandrashekhar Thejaswi PS, Kiran Bynam, Young Jun Hong, Chang Soon Park, Manoj Choudhary
  • Patent number: 10462655
    Abstract: In a method for generating a digital key in a first communication device and in a second communication device, the first communication device transmits a first electromagnetic signal to the second communication device, which extracts the digital key from the received first electromagnetic signal. The second communication device transmits a second electromagnetic signal to the first communication device, which likewise extracts the digital key from the received second electromagnetic signal. A direct signal component, transmitted on a direct signal path between the first communication device and the second communication device, of the first electromagnetic signal and of the second electromagnetic signal is attenuated.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 29, 2019
    Assignee: Airbus Defence and Space GmbH
    Inventors: Jirka Klaue, Christoph Heller, Martin Kubisch, Sebastian Stemmer
  • Patent number: 10432252
    Abstract: Binary forward error correcting (FEC) encoding is applied to a stream of input bits, to generate a stream of coded bits. The coded bits are mapped to multiple binary streams. In some embodiments, at least one coded bit is mapped to more than one of the binary streams and none of the binary streams are identical to each other. Stream-specific modulations are applied to the binary streams. Non-binary FEC encoding could be applied after the stream-specific modulations.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: October 1, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Alireza Bayesteh, Mahmoud Taherzadeh Boroujeni, Mohammadhadi Baligh, Jianglei Ma
  • Patent number: 10432347
    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a wireless transmission according to a Physical Layer scheme. For example, a wireless station may be configured to generate a frame including a header and a data portion, the header including a modulation and coding scheme (MCS) value of an Orthogonal Frequency Divisional Multiplexing (OFDM) Physical layer (PHY) scheme or a Low Power Single Carrier (LPSC) PHY scheme; modulate and encode the header according to a Single Carrier (SC) PHY scheme; modulate and encode the data portion according to the OFDM PHY scheme or the LPSC PHY scheme; and process transmission of the frame.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 1, 2019
    Assignee: INTEL IP CORPORATION
    Inventors: Assaf Kasher, Carlos Cordeiro
  • Patent number: 10348382
    Abstract: Systems and methods of preventing interception of radiofrequency (RF) signals can include a first transmitter device (cover signal generator) and a second transmitter device (protected signal generator). The first transmitter device may have a first set of antennae to transmit a first RF signal in plurality of directions. The first RF signal may have a first signal strength in a target direction less than in directions adjacent to the target direction. The second transmitter device may have a second set of antennae to transmit a second RF signal to a target receiver according to an interception prevention configuration. The interception prevention configuration may include having the target receiver located along the target direction and the second RF signal having a second signal strength greater than a detection threshold relative to the first signal strength along the target direction.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: July 9, 2019
    Assignee: ROCKWELL COLLINS, INC.
    Inventor: Dana J. Jensen
  • Patent number: 10349092
    Abstract: An encoder for encoding secondary media data including metadata and control data for primary media data is shown, wherein the encoder is configured to encode the secondary media data using adding redundancy or bandlimiting and wherein the encoder is configured to output the encoded secondary media data as a stream of digital words. Therefore, the stream of digital words may be formed such that it is capable to resist a typical processing of a digital audio stream. Furthermore, processors for processing a digital audio stream are able to process the stream of digital words, since the stream of digital words may be designed as an audio-like or analog-like digital stream.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: July 9, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Robert Bleidt, Tobias Bliem, Stefan Kraegeloh
  • Patent number: 10291459
    Abstract: Coding gains can be achieved by encoding binary data directly to multi-dimensional codewords, which circumvents QAM symbol mapping employed by conventional CDMA encoding techniques. Further, multiple access can be achieved by assigning different codebooks to different multiplexed layers. Moreover, sparse codewords can be used to reduce baseband processing complexity on the receiver-side of the network, as sparse codewords can be detected within multiplexed codewords in accordance with message passing algorithms (MPAs).
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: May 14, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hosein Nikopour, Mohammadhadi Baligh
  • Patent number: 10237093
    Abstract: A method and an apparatus apply an adaptive weight in a wireless communication system. In the method, channel estimation is performed. A weighting factor that reduces a Mean Square Error (MSE) is determined with respect to a channel in a specific section. A channel estimate value is multiplied by the weighting factor.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: March 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Cheol Kim, Sung-Kwon Jo, Myung-Kwang Byun
  • Patent number: 10142061
    Abstract: An STBC/SFBC-based signal transmission method and apparatus is provided for use in a multi-carrier system. A method for a transmitter to transmit a signal to a receiver in a diversity transmission mode according to the present invention includes transmitting a filter index indicating a filter allocated to the receiver and transmitting Space Time Block Code (STBC) symbols to the receiver at symbol positions selected based on the filter index.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyeongyeon Kim, Ming Hoka, Chanhong Kim, Jiyun Seol, Yeohun Yun, Yongho Cho
  • Patent number: 10121122
    Abstract: An RFID device may include one or more manually activated RFID tags configured to transmit unique RFID signals in response to a manual activation thereof. A transaction may be defined upon receiving a confluence of multiple RFID signals at the same time, or at nearly the same time, at an RFID reader. A transaction may also be defined upon receiving multiple RFID signals or confluences of such signals in a predetermined series or sequence. The RFID devices may include a single manually activated RFID tag, or two or more of such tags, which may be individually activated by one or more manual interactions from a user.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: November 6, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Ryan Scott Russell, Wesley Scott Lauka, Ned Lecky, Joshua Joel Boelter
  • Patent number: 10084515
    Abstract: A method and apparatus are disclosed for communication in a Millimeter Wave Hotspot (mmH) backhaul system which uses mesh nodes. A mmH mesh node may receive a control signal which includes a total number of available control slots. The mesh node may determine the number of iterations of a resource scheduling mechanism that can be made during the time period of all available control slots, based on the number of neighbor nodes for the mesh node. Further, the mesh node may receive control slot information, including information about traffic queues and priorities. The mesh node may then perform resource scheduling using the resource scheduling mechanism based on the currently received control slot information and control slot information received in previous iterations of resource scheduling. The mesh node may also adjust a preamble based on a time between a last packet transmission and a current packet transmission to a neighboring node.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: September 25, 2018
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Steven Ferrante, Arnab Roy, Philip J. Pietraski, Ravikumar V. Pragada
  • Patent number: 10079614
    Abstract: In a noise canceler, interference signals received by sub-antennas 12 are cross-correlated by a first correlation-value calculation unit and the peaks of the interference signals are detected by a first peak detector. Interference signal information is acquired by a first-interference-signal information acquisition unit and the interference signals are synthesized by an interference signal synthesizer. A signal received by a main antenna and the synthesized interference signal are correlated by a second correlation-value calculation unit and the peak of the synthesized interference signal is detected by a second peak detector. The interference signal information is acquired by a second interference-signal-information acquisition unit and an interference signal replica is generated by an interference signal replica generator. The interference signal replica is subtracted by an interference signal removal unit from the signal received by the main antenna.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: September 18, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoichi Kushioka, Mitsuhiro Takashima
  • Patent number: 10075216
    Abstract: Provided in the present invention is a method for avoiding downlink interference between an indoor DAS system and a small base station, the steps comprising: step 1: determining an initial access RU, and establishing a signal strength table; step 2: the DAS system, by means of the chosen RU, attempts to establish a downlink with UE 1, and detects the signal to interference plus noise ratio (SINR) value of the downlink signal of UE 1, and comparing same with a preset threshold value ?1; step 3: UE 1 maintains one or a plurality of RU downlinks assigned thereto by the DAS system, during the communication process continuously detects an SINR value at a set time interval, and on the basis of whether same is greater than ?1, ensures a corresponding service quality.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: September 11, 2018
    Assignee: SUNWAVE COMMUNICATIONS CO., LTD.
    Inventors: Peng Pan, Xin Chen, Junrong Yan, Yingbiao Yao
  • Patent number: 10001987
    Abstract: A method is for updating an original firmware file of an I/O module which communicates with multiple host-end devices and stores the original firmware file. The method includes: receiving a current-received data packet from one host-end device; when it is determined that the current-received data packet is a first data packet constituting an update file, and that the original firmware file is not undergoing an update process, setting a status flag to indicate that the original firmware file is undergoing an update process, storing the current-received data packet; and repeating the previous steps when it is determined that the current-received data packet is not a last one data packet constituting the update file.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: June 19, 2018
    Assignee: Mitac Computing Technology Corporation
    Inventors: Yi-Lan Lin, Jen-Chih Lee, Kwang-Chao Chen, Hung-Tar Lin, Li-Tien Chang, Heng-Chia Hsu
  • Patent number: 9942935
    Abstract: A server rack includes a first component including a host processor to provide a hosted environment and a first management system to provide a managed environment separate from the hosted environment, to establish a first wireless connection to a mobile device, to process a first management request from the mobile device in the managed environment, and to detect that the first wireless connection has unexpectedly terminated, and a second component including a second management system to receive an indication from the first management controller that the first wireless connection was unexpectedly terminated, to establish a second wireless connection to the mobile device in response to the indication, to receive a second management request from the mobile device, and to send the second management request to the first management system. The first management system being further to process the second management request in the managed environment.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 10, 2018
    Assignee: DELL PRODUCTS, LP
    Inventors: Matthew Bryan Gilbert, Hana Schuster Smith
  • Patent number: 9942869
    Abstract: A method comprising generating a baseband information signal by mixing a received modulated carrier signal with a local oscillator (LO) signal having an LO frequency; obtaining baseband signal samples of the baseband information signal having a baseband signal magnitude and a baseband signal phase; determining a cumulative phase measurement associated with baseband signal samples having a baseband signal magnitude greater than a threshold; and, applying a correction signal to compensate for an LO frequency offset of the LO frequency based on the cumulative phase.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: April 10, 2018
    Assignee: PhasorLab, Inc.
    Inventor: Joshua C. Park
  • Patent number: 9923549
    Abstract: There is provided a finite impulse response (FIR) filter for filtering an input voltage signal to generate an output current signal, the FIR filter including a plurality of sample and hold (SH) circuits configured to simultaneously receive the input voltage signal, to sample the input voltage signal at successive sample times according to a sample clock, and to generate a plurality of sampled voltage signals, and a plurality of programmable analog multipliers coupled to the plurality of SH circuits and configured to multiply the plurality of sampled voltage signals by a plurality of binary multiplication factors to generate the output current signal.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: March 20, 2018
    Assignee: RAYTHEON COMPANY
    Inventors: Denpol Kultran, Richard T. Hennegan, Harry B. Marr
  • Patent number: 9871554
    Abstract: Provided are a method and vector computing unit for implementing de-scrambling and de-spreading, and a computer storage medium. The method includes that: an operation of complex multiplication on baseband data and corresponding de-scrambling and de-spreading codes is performed by adopting data transformation and addition, and data obtained by the complex multiplication is stored into a vector register file; a row of data obtained by the complex multiplication is read from the vector register file, every two adjacent pieces of data in the row of data are accumulated to obtain a half row of data, a ¼ row of data, and finally one piece of accumulated data; and the accumulation processing is continued on other rows of data to implement accumulation of each row of data obtained by the complex multiplication in the vector register file.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: January 16, 2018
    Assignee: ZTE MICROELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wenqiong Lin, Li Hua, Yongsheng Zhang
  • Patent number: 9872246
    Abstract: Power conservation is provided in a network of globally unsynchronized wireless communication devices that use asynchronous channel hopping. Each wireless communication device defines its own channel hopping schedule. The channel hopping schedules include channel hop intervals when the device's receiver is active for receiving transmissions, and sleep intervals when the receiver is in a low power sleep state. Parameters associated with the sleep intervals are defined by each wireless communication device independently of external constraint.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: January 16, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kumaran Vijayasankar, Arvind Kandhalu Raghu, Ramanuja Vedantham
  • Patent number: 9844069
    Abstract: Embodiments of the present invention provide a dual band adaptive concurrent processing method and apparatus. In the embodiments of the present invention, by using statistical information of services at first and a second frequency bands in the Nth adjustment period, performance of the services at the frequency bands in an adjustment period may be acquired. Based on the statistical information, and a quality of service (QoS) requirement that the services at the two frequency bands need to meet, a second coefficient of proportionality between timeslots occupied by the services at the two frequency bands in the (N+1)th adjustment period may be determined, so that switching control on first and second channels may be performed in the (N+1)th adjustment period according to the determined second coefficient of proportionality.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: December 12, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lin Gao, Wenjun Li, Yuan Zhou
  • Patent number: 9825782
    Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus comprises an interface configured to receive a plurality of channel estimation sequences, wherein each one of the plurality of channel estimation sequences is received on a respective one of a plurality of channels, each one of the plurality of channels having a respective one of a plurality of frequency bands. The apparatus also comprises a processing system configured to generate a channel estimation for each one of the plurality of channels using the respective one of the plurality of channel estimation sequences, and to generate a collective channel estimation based on the channel estimations.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: November 21, 2017
    Assignee: QUALCOMM, Incorporated
    Inventors: Alecsander Eitan, Amichai Sanderovich, Gal Basson
  • Patent number: 9819387
    Abstract: A system and method for generating a channel statistics dependent frequency hopping pattern that requires low computational complexity and simultaneously maximizes channel capacity and minimizes the symbol error rate or bit error rate under partial band tone interference and Rician or other fading environments. The system includes one or more transmitting units and one or more receiving units communicating over a wireless communication network. A signal generated at one of the transmitting units is modified via the channel statistics dependent frequency hopping pattern as generated via one of the receiving units for improved signal accuracy and avoiding interferer detection and/or interference hits.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: November 14, 2017
    Assignees: WICHITA STATE UNIVERSITY, THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
    Inventors: Hyuck M. Kwon, Matthew R. Hannon, Khanh D. Pham
  • Patent number: 9753877
    Abstract: Methods and apparatus are provided for processing a data value in a read channel of a memory device. The data value provided to a general purpose processor for processing. The data value is not decoded data and may comprise one or more of a raw data value and an intermediate data value. The data value can be provided to the general purpose processor, for example, upon a detection of one or more predefined trigger conditions. A data value can be obtained from a memory device and then be redirected to a general purpose processor. The data value is not decoded data. The redirection can be conditionally performed if one or more predefined bypass conditions exist. The general purpose processor is optionally time-shared with one or more additional applications.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: September 5, 2017
    Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
    Inventors: Nils Graef, Erich F. Haratsch
  • Patent number: 9749005
    Abstract: Stable clock synchronization is ensured even under a multi fading environment such as the non-line-of-sight communication. On a transmission side, multiplying a clock signal by a spreading code, a spread-spectrum clock signal is generated whose spectrum being made to spread; frequency conversion is performed on a signal obtained by superimposing an information signal on the spread-spectrum clock signal and a radio signal is transmitted by wireless. On the other hand, on a receiving side, the radio signal is received, frequency conversion is performed on the radio signal, and a frequency-converted radio signal is divided into two lines. A clock signal extracted by performing spectrum despreading on one of divided radio signals by multiplying a spreading code; and clock synchronization is performed on other one of the divided radio signals using the clock signal having been extracted.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: August 29, 2017
    Assignee: NEC CORPORATION
    Inventor: Takayuki Murai
  • Patent number: 9672666
    Abstract: A method and apparatus for collecting vehicle data is provided. The method for collecting vehicle data in a vehicle data collection server communicating with a vehicle through a wireless network includes receiving vehicle data corresponding to first to Nth data items from a first vehicle. When alternative data collection vehicles are needed, the method searches for the alternative data collection vehicles in a group of vehicles, for each of the first to Nth data items, receives vehicle data corresponding to at least one of the first to Nth data items through the searched alternative data collection vehicles, and stores the vehicle data received from the first vehicle and the vehicle data received from the alternative data collection vehicles.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: June 6, 2017
    Assignee: Hyundai Motor Company
    Inventors: Dong Jin Shin, Sang Jae Han, Dong Youl Lee, Jae Am Seo, Chul Min Kim
  • Patent number: 9629177
    Abstract: A method for transmitting and receiving broadcast signals in a radio broadcasting communication system is provided together with an associated apparatus. The transmitting method includes creating a frame having a preamble slot, a data slot and a control slot, and sending the created frame. The control slot has information for assigning the data slot to one of an uplink and a downlink. The receiving method includes receiving such a frame wherein the control slot has scheduling information for each user, and extracting the data slot from the received frame by using the scheduling information in the control slot. These methods may realize an interactive broadcasting by separately employing broadcast signals for the uplink and downlink.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: April 18, 2017
    Assignees: Samsung Electronics Co., Ltd, Peter Jung & Guido Bruck Institut Fur Kooperationstechnik GBR
    Inventors: Yeon-Ju Lim, Sung-Ryul Yun, Admir Burnic, Alexander Viebmann, Christian Kocks, Christoph Spiegel, Peter Jung
  • Patent number: 9471792
    Abstract: There is provided a detection arrangement for detecting an attack to internal signals in a semiconductor device. The detection arrangement comprises a first input terminal, a second input terminal, and a comparison unit. The first input terminal is adapted to receive a first signal being indicative for a signal at a first stage of a driver of the semiconductor device, the driver being capable to drive signals internally to the semiconductor device. The second input terminal is adapted to receive a second signal being indicative for a signal at a second stage of the driver of the semiconductor device. The comparison unit is adapted to compare the first signal and the second signal and to determine a time period during which the signals are equal, wherein the determined time period is indicative for a potential attack, if the determined time period is above a predefined threshold.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: October 18, 2016
    Assignee: NXP B.V.
    Inventors: Soenke Ostertun, Joachim Christoph Hans Garbe
  • Patent number: 9467208
    Abstract: RFID apparatus includes transmission means for transmitting an RF signal; reception means for receiving a modulated RF signal; and demodulation means for demodulating a received modulated signal. The apparatus comprises generating means for generating a RF signal dependent on an incoming RF signal, the incoming RF signal being generated by different apparatus, and the apparatus is arranged to transmit the generated RF signal such that the generated RF signal interferes with the incoming RF signal. The RFID apparatus has both the means to respond to an RF reader device, in tag emulation mode, and means to function as an RF reader device, in reader mode.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: October 11, 2016
    Assignee: Broadcom Europe Limited
    Inventor: Glen Pitt-Pladdy
  • Patent number: 9408146
    Abstract: A wireless field device that performs a wireless communication with other field devices in a wireless network through a gateway. The device includes: a battery incorporated in the field device to activate the field device; and a wireless communication module configured to exchange radio signals with the gateway to perform the wireless communication with said other field devices. When the field device starts procedure for joining in the wireless network, firstly, the wireless communication module continuously accesses the gateway in a first period to receive an advertisement signal from the gateway, and when the wireless communication module fails to receive the advertisement signal in the first period, the wireless communication module intermittently accesses the gateway until receiving the advertisement signal from the gateway.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: August 2, 2016
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Hiroki Yoshino, Toshimitsu Uemura, Kuniaki Sugitani, Naoyuki Fujimoto
  • Patent number: 9319111
    Abstract: The disclosure relates to methods and apparatuses that allow for channelization code allocation adapted for uplink MIMO transmissions. A method for use in a user equipment of a telecommunication system comprises spreading data symbols of a plurality of streams to be transmitted from the user equipment as MIMO transmissions. The step of spreading the data symbols comprises allocating, for each stream, at least one channelization code (62) to be applied for spreading the data symbols of the stream. The plurality of streams are allocated channelization codes (62) from a predefined code tree (61) of applicable channelization codes such that any channelization code (62) is allocated to more than one stream only if there is no applicable channelization code left in the code tree (61) which currently is not allocated for any stream. The channelization code allocation scheme makes it possible to avoid inter-stream interference in many scenarios of uplink MIMO transmissions.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: April 19, 2016
    Assignee: Optis Wireless Technology, LLC
    Inventors: Jinhua Liu, Johan Hultell, Johan Bergman, Qingyu Miao
  • Patent number: 9313063
    Abstract: An apparatus and method for transmitting data with conditional zero padding is provided. In accordance with an embodiment of the disclosure, a transmitter transmits data to a receiver by transmitting symbols such that each symbol is preceded by a cyclic prefix of a fixed length and the symbol conditionally includes enough zero padding to avoid ISI (Inter-Symbol Interference) between consecutive symbols. In some implementations, if the fixed length for cyclic prefixes is long enough to avoid ISI between consecutive symbols, then the symbols may omit zero padding. Otherwise, the symbols may include enough zero padding to avoid ISI between consecutive symbols. The zero padding may be zero tail or zero head.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: April 12, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ming Jia, Jianglei Ma, Wen Tong
  • Patent number: 9281981
    Abstract: An apparatus and method for transmitting data with conditional zero padding is provided. In accordance with an embodiment of the disclosure, a transmitter transmits data to a receiver by transmitting symbols such that each symbol is preceded by a cyclic prefix of a fixed length and the symbol conditionally includes enough zero padding to avoid ISI (Inter-Symbol Interference) between consecutive symbols. In some implementations, if the fixed length for cyclic prefixes is long enough to avoid ISI between consecutive symbols, then the symbols may omit zero padding. Otherwise, the symbols may include enough zero padding to avoid ISI between consecutive symbols. The zero padding may be zero tail or zero head.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: March 8, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ming Jia, Jianglei Ma, Wen Tong
  • Patent number: 9276704
    Abstract: A wireless device, and corresponding method, having a receiver configured to receive a signal having in-phase and quadrature components; a non-linear filter demodulator configured to translate noncoherently the in-phase and quadrature components into a phase domain signal; a coherence acquisition unit configured to estimate and correct at least one coherence parameter based on the in-phase and quadrature components and the phase domain signal; and a detector configured to detect information in the phase domain signal.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: March 1, 2016
    Assignee: Intel Corporation
    Inventors: David Arditti Ilitzky, Edgar Borrayo Sandoval, Arturo Veloz, Rocio Hernandez Fabian
  • Patent number: 9154183
    Abstract: A method can be used for channel mapping based on frequency hopping. A working channel label of a node is computed according to the number of working channels of the node in frequency hopping mode, an identifier of the node, and a time parameter corresponding to a current superframe. A working channel is determined according to the working channel label. Data is transmitted on the working channel within the current superframe.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: October 6, 2015
    Assignee: Huawei Technologies Co., LTD.
    Inventor: Pei Liu
  • Patent number: 9131465
    Abstract: A method for data transmission. The method including the steps of generating at least one resource tree, mapping a plurality of resource elements into respective leaf nodes in the at least one resource tree according to a certain mapping scheme, with each node in the at least one resource tree representing a resource allocation scheme for data transmission, and transmitting data using a resource allocation scheme selected from among the plurality of resource allocation schemes represented by respective nodes in the at least one resource tree. In response to reception of the data, a receiver decodes the data by recursively applying the plurality of resource allocation schemes represented by respective nodes in the at least one resource tree until the data is decoded.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: September 8, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Zhouyue Pi
  • Patent number: 9118410
    Abstract: A limited feedback method and apparatus for two-way relay channels with physical network coding are disclosed. An embodiment of the invention provides a method of providing parameters as feedback to two terminals according to channel conditions by a relay for two-way communication in a two-way relaying system using PNC (physical network coding). This method includes: (a) quantizing phase difference information of two-way channels of the two terminals in consideration of whether or not a ratio of a minimum distance between constellation points is periodic according to modulation level; and (b) transmitting feedback information, which contains at least one of the phase difference information and the power control information of the two terminals, as a limited number of bits to the two terminals. Here, the number of bits for the phase difference information or the number of bits for the power control information is determined according to the modulation level.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: August 25, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: In kyu Lee, Young-Tae Kim, Kwang-Won Lee
  • Patent number: 9095002
    Abstract: The invention provides, in some aspects, an improved control network (or portion thereof) that includes a plurality of nodes, each associated with respective control devices (e.g., controllers, actuators, sensors, etc.). Each of the nodes also includes one or more radios supporting wireless communications pathways with one or more of the other nodes, which pathways together form at least part of a mesh network. At least a first one of the nodes wirelessly transmits information simultaneously, or substantially simultaneously, over at least two pathways formed in a mesh network to a second one of the nodes. The radio(s) of the first node, according to related aspects of the invention, sends that information wirelessly at different frequencies along each of those pathways.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: July 28, 2015
    Assignee: Invensys Systems, Inc.
    Inventors: Gary Williams, Chris W. Rogers
  • Patent number: 9094915
    Abstract: A method in a communication device and a communication device (100) for adapting a transmission of data are provided. The transmission is transferred from a first chip (110) to a second chip (120) over a chip-to-chip interface (104, 304). The chip-to-chip-interface comprises a wired connection between the first chip and the second chip which is comprised in the communication device. The communication device receives (201) the radio signal (330), comprising the transmission of data from another communication device. The communication device determines (202), from the received radio signal (330), modulation and coding information, which is used for determining (203) a channel quality. Further, the communication device (100) adapts (204) the transmission of data based on the determined channel quality of the received radio signal (330) in such way that at least the determined channel quality is obtained when transferring (205) the transmission of data over the chip-to-chip interface to the second chip.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 28, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Thomas Olsson, Anders Carlsson, Bengt Lindoff, Johan Nilsson
  • Patent number: 9088469
    Abstract: A receiver may comprise a sequence estimation circuit and operate in at least two modes. In a first mode, the sequence estimation circuit may process OFDM symbols received on a first number of data-carrying subcarriers to recover a number of mapped symbols per OFDM symbol that is greater than the first number. In a second mode, the sequence estimation circuit may process OFDM symbols received on a second number of data-carrying subcarriers to recover a number of mapped symbols per OFDM symbol that is equal to the second number. The second number may be equal to or different from the first number. While the receiver operates in the first mode, the sequence estimation circuit may be operable to generate candidate vectors and process the candidate vectors using a controlled ISCI model to generate reconstructed physical subcarrier values.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: July 21, 2015
    Assignee: MagnaCom Ltd.
    Inventors: Amir Eliaz, Ilan Reuven
  • Patent number: 9088939
    Abstract: Systems and methodologies are described that facilitate mapping multiple evolved packet system (EPS) bearers to a single relay eNB radio bearer. In particular, an upstream eNB can select a radio bearer of a downstream eNB for association to an EPS bearer; the selection can be based on a best effort match or substantially any logic. The upstream eNB can store an association between the radio bearer and EPS bearer for subsequent downstream packet routing. The upstream eNB can also provide an indication of the selected radio bearer to the downstream relay eNB to facilitate upstream packet routing therefrom. The upstream eNB can alternatively select the radio bearer of the downstream eNB for association to the EPS bearer based on a quality of service (QoS) class identifier (QCI) of the EPS bearer.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: July 21, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Fatih Ulupinar, Gavin B. Horn, Parag A. Agashe, Nathan E. Tenny, Yongsheng Shi