Correlative Or Matched Filter Patents (Class 375/343)
  • Patent number: 10523414
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 31, 2019
    Assignee: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • Patent number: 10523412
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 31, 2019
    Assignee: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • Patent number: 10523413
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 31, 2019
    Assignee: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • Patent number: 10511432
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 17, 2019
    Assignee: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • Patent number: 10511431
    Abstract: A method of synchronising a communication signal entering into a receiver. Each frame of the signal includes a learning symbol formed of N repetitions of a learning sequence. The method includes the determination of a total correlation signal by correlating the input signal with a correlation symbol formed of N repetitions of a correlation sequence corresponding to all or part of the learning sequence and duration tsc, and the determination of a partial correlation signal by correlating the input signal with the correlation sequence. A peak of the total correlation signal is identified at an instant tpct. At least one threshold is defined from the power of the peak of the total correlation signal, and the power of the partial correlation signal is compared here to the instants tpct?k*tsc, with k a whole number between 0 and N?1.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: December 17, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Marc Laugeois
  • Patent number: 10511468
    Abstract: An apparatus to estimate a frequency offset in wireless networks is provided. The apparatus comprises: radio frequency (RF) circuitry to down-convert a signal from a base station to generate in-phase and quadrature (IQ) components, wherein the signal includes one or more repeated bursts; and a frequency offset estimator operatively coupled to the RF circuitry, the frequency offset estimator to estimate a frequency offset based on the IQ components and an iterative calculation of phase differences between different sets of bursts of the one or more repeated bursts.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: December 17, 2019
    Assignee: INTEL IP CORPORATION
    Inventors: Yunshuai Tang, Yanzeng Fu, Hong Zhang, Jie Lei, Zhen Wang
  • Patent number: 10506291
    Abstract: A media system, receives a received sequence of media content, for presentation at the media system and generates a comparison fingerprint of the received sequence of media content. The comparison fingerprint is for comparison with a plurality of reference fingerprints so as to identify the received sequence of media content. The media system sends a request for identification of additional content to a server system. The request is based at least in part on the comparison fingerprint. The media system receives a response to the request, including information enabling additional content to be selected for display at the media system based at least in part on the identification of the received sequence of media content, and presents a displayed sequence of media content that includes at least a portion of the received sequence of media content and at least a portion of the additional content.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: December 10, 2019
    Assignee: Gracenote, Inc.
    Inventor: Donald F. Gordon
  • Patent number: 10491368
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: November 26, 2019
    Assignee: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • Patent number: 10491356
    Abstract: A communication system comprises evolved base nodes (eNBs) communicating via an over-the-air (OTA) link with low mobility user equipment (UE). A network can utilize the eNBs for cooperative beam shaping for interference nulling based upon a number of factors UE (e.g., coordinated multi-point (CoMP) optimization for feedback, quality of service (QoS), fairness, etc.). The UE advantageously transmits multiple description coding (MDC) that supports a determination by the eNBs that coherent channel conditions (e.g., frequency and/or time invariance) exists for combining feedback reports to realize reduced quantization error. In addition, the MDC feedback reports still support incoherent channel states in which each report can be used individually for interference nulling/beamforming. MDC can be performed with one codebook or a plurality of codebooks.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: November 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventor: Alexei Yurievitch Gorokhov
  • Patent number: 10489659
    Abstract: A system and method for searching a video stream collected by a camera in a video surveillance system for an object's placement or displacement is disclosed. The searching includes an interactive question/answer approach that allows for a video snippet including the object's placement or displacement to be found quickly without the need for complicated video analytics. During the search, frames from algorithmically selected points in the video stream are presented to a user for review. The user reviews each frame and indicates if he/she sees the object. Based on the user's response the searching algorithmically reduces the portion video stream that is searched until a snippet of a video is found that includes the object's placement or displacement.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: November 26, 2019
    Assignee: VERINT AMERICAS INC.
    Inventor: Shahar Daliyot
  • Patent number: 10477414
    Abstract: The present disclosure relates to a communication technique for converging IoT technology with 5G communication systems for supporting higher data transmission rates than 4G systems and to a system therefor. The present disclosure can be applied to intelligent services (e.g. smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security- and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: November 12, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seunghoon Choi, Donghan Kim, Jinyoung Oh
  • Patent number: 10476725
    Abstract: A receiver includes a radio frequency demodulation circuit to detect and recover a received signal, the received signal including in one or more frames a preamble including a plurality of bootstrap OFDM symbols. A first of the bootstrap OFDM symbols has a first time domain structure so that a receiver can synchronize to a useful part of the bootstrap OFDM symbols and one or more of the other bootstrap OFDM symbols have at least a second time domain structure and carry layer signalling data indicating parameters for detecting and recovering payload data carried by the one or more frames. The receiver includes a detector circuit to detect from one or more of the bootstrap OFDM symbols a synchronization timing and an inverse Fourier transformer to convert the temporal length of the bootstrap OFDM symbols or the payload OFDM symbols from the time domain into the frequency domain.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 12, 2019
    Assignee: Sony Corporation
    Inventor: Samuel Asangbeng Atungsiri
  • Patent number: 10461921
    Abstract: An apparatus comprises a plurality of sampling circuits configured to receive a non-Non Return to Zero (non-NRZ) data signal; and a control circuit coupled to the plurality of sampling circuits, wherein the control circuit is configured to provide one or more control signals indicating whether to decrease or increase a frequency of a clock signal associated with the non-NRZ data signal based on the non-NRZ data signal.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: October 29, 2019
    Assignee: PHOTONIC TECHNOLOGIES (SHANGHAI) CO., LTD.
    Inventors: Rui Bai, Xuefeng Chen, Wenzong Pan, Xin Wang, Tao Xia, Shang Hu, Zhichun Wang, Yuanxi Zhang, Wenjun He, Juncheng Wang, Patrick Yin Chiang
  • Patent number: 10448920
    Abstract: Examples of the present invention utilize principal component analysis (PCA) to detect cough sounds in an audio stream. Comparison of all or portions of the audio stream with a cough model may be conducted. The cough model may include a number of basis vectors may be based on initial portions of known coughs. The initial portions may be non-user specific, and accordingly the cough model may be used to detect coughs across individuals. Moreover, examples of the present invention may reconstruct the cough sounds from stored features such that the cough sounds are reconstructed but the reconstruction techniques used may be insufficient to reconstruct speech sounds that may also have been recorded, which may increase user privacy.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 22, 2019
    Assignee: University of Washington
    Inventors: Shwetak N. Patel, Eric Cooper Larson, Tien-Jui Lee, Shih-Yen Liu
  • Patent number: 10433344
    Abstract: Disclosed are a method for performing a random access and a terminal, the method comprising: acquiring information on a sequence set and information on a phase pattern vector set to be used during a random access step; selecting, from among a plurality of phase pattern vectors included in the phase pattern vector set, any one phase pattern vector corresponding to the repeating transmission frequency of an RACH signal; transmitting, to a base station, the generated RACH signal for a time period up to the repeating transmission frequency by using the selected phase pattern vector and any one sequence selected from among a plurality of sequences included in the sequence set; and receiving, from the base station, an RACH response signal indicating an estimated sequence and an estimated phase pattern vector.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 1, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kilbom Lee, Jiwon Kang, Kitae Kim, Kungmin Park, Heejin Kim
  • Patent number: 10431227
    Abstract: A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multi-channel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals. A multi-channel audio encoder provides a decorrelation method parameter to control an audio decoder.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 1, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10404506
    Abstract: An interference variance estimation method includes receiving a composite sample comprising a sample of a first OFDM transmission scheme interfered by out-of-band interference of a second OFDM transmission scheme; determining for each of the resource elements of the first transmission scheme a power estimate of the out-of-band interference; and filtering the power estimates over subcarriers corresponding to a same symbol, wherein weights of the filtering are based on a correlation property of the power estimates with respect to the subcarriers. An interference cancellation method includes: receiving the composite sample; determining a first estimate of the out-of-band interference with respect to non-data bearing subcarriers; determining a second estimate of the out-of-band interference with respect to data bearing subcarriers based on the first estimate; and cancelling the out-of-band interference based on the composite signal and the second estimate.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: September 3, 2019
    Assignee: Intel IP Corporation
    Inventors: Ahmed S. Ibrahim, Mohamed F. Marzban, Belal S. Amin
  • Patent number: 10348539
    Abstract: A frequency demodulated signal includes a frequency modulation in time that is shifted by a DC level corresponding to a carrier frequency offset. A number of different frequency offsets are applied to the frequency demodulated signal to generate a corresponding number of offset frequency demodulated signals. Each offset frequency demodulated signal is correlated against a reference signal and a determination is made as to which correlation produces a highest correlation value. One offset frequency demodulated signal of the number of offset frequency demodulated signals is then selected for output as an offset corrected frequency demodulated signal. The selected signal is the one having the highest correlation value.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 9, 2019
    Assignee: STMicroelectronics International N.V.
    Inventor: Gagan Midha
  • Patent number: 10305717
    Abstract: According to an exemplary embodiment, a method of making a Hermetic transform to mitigate noise comprises: receiving over a channel signal frames comprising predetermined data and gaps comprising noise; framing the predetermined data; constructing a set of linear equations which relate a transfer function matrix of the channel to the predetermined data; determining the transfer function matrix by inverting the linear equations using a first pseudo inverse matrix; incorporating transfer function matrix into linear equations for a hermetic transform; and determining the hermetic transform using a second pseudo inverse matrix based on the predetermined data and the noise.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: May 28, 2019
    Assignee: VertoCOMM, Inc.
    Inventor: Harvey C. Woodsum
  • Patent number: 10278138
    Abstract: Embodiments of the disclosure relate to selective multichannel amplification in a distributed communication system. In this regard, a remote antenna unit (RAU) in the distributed communication system receives downlink digital signals associated with downlink channels having respective downlink channel bandwidths. The RAU digitally scales the downlink digital signals based on respective digital scaling factors to generate scaled downlink digital signals having a substantially equal channel power density in the downlink channels. By digitally scaling the downlink digital signals to provide the substantially equal channel power density in the downlink channels, it is possible to provide substantially uniform radio frequency (RF) coverage range across the downlink channels, thus helping to improve overall RF coverage and user experience in a coverage area of the distributed communication system.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 30, 2019
    Assignee: Corning Optical Communications
    Inventor: Liav Moshe Daniel
  • Patent number: 10257326
    Abstract: A WLAN device includes a processor implementing a MAC layer and a PHY layer which is coupled to a transceiver including a receive (Rx) chain and a transmit (Tx) chain that is coupled to an antenna. A preamble decode-based receive suspend algorithm has software stored in a memory that is implemented by the processor or by hardware including digital logic. The algorithm responsive to receiving a packet including a Physical Layer Convergence Protocol (PLCP) header, a MAC header, and data, is for analyzing a length field in the PLCP header to determine whether the packet is an undesignated packet and whether there is sufficient time remaining for implementing a turning off and then back on of an analog portion of the Rx chain to avoid missing a next packet. If the undesignated packet and sufficient time are present, the analog portion of the Rx chain is turned off.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: April 9, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Oren Aharon Shani, Matan Yacobi
  • Patent number: 10250361
    Abstract: Disclosed are a method and an apparatus for transmitting a data unit comprising guard intervals having different lengths. A method for transmitting a data unit in a wireless LAN comprises the steps of: a transmission STA generating a PPDU; and the transmission PPDU transmitting the PPDU to one or more reception STAs, wherein the PPDU sequentially comprises a first signal field, a second signal field, and a training field, wherein the first signal field is generated on the basis of a first IFFT size and is transmitted in a first OFDM symbol, the second signal field is generated on the basis of the first IFFT size and is transmitted in a second OFDM symbol, and the training field is generated on the basis of a second IFFT size and is transmitted in a third OFDM symbol.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: April 2, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinsoo Choi, Wookbong Lee, Dongguk Lim, Hangyu Cho
  • Patent number: 10243599
    Abstract: A determination device serves for determining an active channel of a plurality of channels in a wireless signal, wherein adjacent channels overlap each other by a predetermined frequency threshold. The determination device comprises a receiver for receiving the wireless signal and providing a respective digitized signal, a first filter for applying a mean filter to the digitized signal, and a detector for detecting the active channel in the first filtered signal.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: March 26, 2019
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Christian Mensing, Stefan Schmidt
  • Patent number: 10200169
    Abstract: Methods, systems, and devices for wireless communication are described. A base station may broadcast a synchronization signal using a narrowband portion of a bandwidth of a cell. The synchronization signal may include a sequence repeated over several symbol periods using a cover code to support power-efficient cell acquisition. A user equipment (UE) receiving the synchronization signal may determine frequency and timing information for a cell by performing a weighted combination and accumulation of low complexity autocorrelation and cross-correlation procedures on the synchronization signal. The reduced complexity correlation procedures may be enabled based on the use of the cover code and a base sequence. In some cases, the cross-correlation may be performed at multiple sampling rates.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: February 5, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Lei, Hao Xu, Wanshi Chen, Xiao Feng Wang, Renqiu Wang, Yongbin Wei, Juan Montojo, Alberto Rico Alvarino, Peter Gaal
  • Patent number: 10200957
    Abstract: This disclosure relates to techniques for estimating baseband power consumption and using the baseband power consumption estimation to select baseband operation features. According to some embodiments, one or more baseband power consumption modifiers occurring during an estimation window may be identified. Baseband power consumption of the wireless device during the estimation window may be estimated based on the identified baseband power consumption modifiers occurring during the estimation window. Baseband data throughput of the wireless device during the estimation window may also be estimated. One or more baseband operation characteristics may be selected based at least in part on the estimated baseband power consumption during the estimation window, possibly in conjunction with the estimated baseband data throughput during the estimation window, current wireless medium conditions, and/or other considerations.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: February 5, 2019
    Assignee: Apple Inc.
    Inventors: Sunny Arora, Rati Agrawal, Sami M. Almalfouh, Xiantao Sun, Johnson O. Sebeni, Wael S. Barakat, Navid Damji, Srinivas Pasupuleti, Raghuveer Mallikarjunan
  • Patent number: 10193715
    Abstract: A transmission apparatus includes a symbol generation unit to generate N symbols, with N being an integer equal to or larger than 2, a time-frequency conversion unit to convert the N symbols to a frequency domain signal having N points, a band limiting filter to perform band limitation on the frequency domain signal having the N points to generate a frequency domain signal having ND points which is less than N, an interpolation-processing and frequency-time conversion unit to convert the frequency domain signal having ND points to a time domain signal, and a transmission unit to transmit the time domain signal at a set transmission interval.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: January 29, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Fumihiro Hasegawa
  • Patent number: 10181889
    Abstract: Disclosed is a communication method using outdated channel state information in a network environment having a G-cell and 2-user terminal, by allowing a terminal and base stations to transmit and receive data symbols for G time slots, and to transmit and receive a reconfiguration signal for an additional one time slot.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: January 15, 2019
    Assignees: LG ELECTRONICS INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kilbom Lee, Changho Suh, Seiyun Shin, Jaewoong Cho, Jiwon Kang
  • Patent number: 10164714
    Abstract: Embodiments may provide a way of communicating via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode (LED) lighting and receivers or detectors that can determine data from light received from the amplitude modulated electromagnetic radiator. Some embodiments may provide a waveform in the form of chips at a chipping clock frequency that switch a light source between on and off states to communicate via light sources that can be amplitude modulated such as LED lighting. Some embodiments may provide a method of transmitting the waveform via modulated LED lighting. Some embodiments are intended for indoor navigation via photogrammetry (i.e., image processing) using self-identifying LED light anchors. In many embodiments, the data signal may be communicated via the light source at amplitude modulating frequencies such that the resulting flicker is not perceivable to the human eye.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 25, 2018
    Assignee: Intel Corporation
    Inventors: Richard D. Roberts, Praveen Gopalakrishnan, Mathys C. Walma
  • Patent number: 10148415
    Abstract: Time-division duplex (TDD) transmission in a digital subscriber line (DSL) communication system including a group of DSL transceivers at a remote side (FTU-Rs) and a distribution point unit (DPU) by performing, with a second FTU-R among the group of FTU-Rs, an initial upstream symbol alignment for a first FTU-R, where a first gap time the first FTU-R needs to wait before transmitting first upstream symbols to a first DSL transceiver at an operator side (FTU-O) at the DPU in a TDD frame period is acquired to make the first upstream symbols align at the first FTU-O's interface, transmitting second upstream symbols to the first FTU-O to correct the first gap time after performing the initial upstream symbol alignment, receiving, from the first FTU-O, tuning offset information representing a correction for the first gap time, and tuning the first FTU-R's upstream symbols transmit time according to the tuning offset information received.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: December 4, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Cao Shi, Amir H. Fazlollahi, Jianhua Liu
  • Patent number: 10148686
    Abstract: Systems, methods, and apparatus, including computer programs encoded on computer storage media, for analyzing telemetry data from physical process sensors to detect anomalies within the physical process. A telemetry analytics system is disclosed as a process level anomaly detection system based on operational telemetrics and domain-specific knowledge that protects cyber physical system (CPS) devices against zero-day exploits not detectable through traditional system log or network packet inspection. The telemetry analytics system operates as a security component comparable to intrusion detection or anti-virus/anti-malware that generates alerts upon detecting anomalies in the sensor and/or activity data ingested from system or network data sources.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: December 4, 2018
    Assignee: Accenture Global Solutions Limited
    Inventors: Amin Hassanzadeh, Shaan Mulchandani, Malek Ben Salem, Chien An Chen
  • Patent number: 10143039
    Abstract: A method for receiving a data packet containing at least position data in a transmission signal via a vehicular ad hoc network, including: filtering the received data packet on the basis of a first filter condition and outputting the filtered data packet to a processing device for processing the filtered data packet; and filtering the received data packet on the basis of a second filter condition and outputting the filtered data packet to a forwarding device for forwarding the filtered data packet to another subscriber of the vehicular ad hoc network.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: November 27, 2018
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Richard Scherping, Ulrich Stählin, Marc Menzel
  • Patent number: 10135488
    Abstract: Disclosed is a method for deinterleaving radar signals, the method including: —the reception of electromagnetic signals by a receiver (12) and the extraction of the pulses from the received signals, and —the formation of pulse trains grouping together at least three pulses spaced apart by a same pulse repetition interval, each pulse train being defined by the pulse repetition interval. The method further includes: —the grouping together of the pulse trains having a same pulse repetition interval according to a predefined grouping law in order to form pulse plateaus, and —the association of the pulse plateaus according to at least one predefined association law in order to obtain deinterleaved radar signals formed from the concatenation of the pulse trains of the associated pulse plateaus.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 20, 2018
    Assignee: THALES
    Inventors: Daniel Stofer, Jean-Francois Grandin, Jean-Marie Lemoine
  • Patent number: 10128964
    Abstract: Methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. In particular, a preamble for transmission in a sequence of symbols over a multi-wire communications interface, such as a MIPI C-PHY interface, is constructed to include one or more symbols each having a single state transition symbols for signaling a particular calibration preamble from a transmitter to a receiver over the multi-wire communications interface. The preamble, having only single state transition symbols, improves reliability of decoding the symbols at a receiver, including reception and decoding without the use of a calibration clock.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: November 13, 2018
    Assignee: QUALCOMM Incorporated
    Inventor: George Alan Wiley
  • Patent number: 10122482
    Abstract: A radio receiver is disclosed. The radio receiver includes an analog tuner and a baseband processor to provide radio functions. The baseband processor is coupled to the analog tuner. The radio receiver further includes a memory and a controller coupled to the analog tuner, the baseband processor and the memory. The controller is configured to perform an operation and the operation includes causing the analog tuner to scan a spectral band to identify radio stations and based on a signal matrix obtained from scanning a station in the spectral band tentatively determining if the station represents a digital radio mondiale (DRM) station and if so, storing the station in a list of possible DRM stations in the memory.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 6, 2018
    Assignee: NXP B.V.
    Inventors: Naveen Jacob, Rajesh Kurian
  • Patent number: 10116469
    Abstract: An electronic receiver may generate a differential detection sequence based on a received symbol sequence and based on a m-symbol delayed version of the received symbol sequence, where m is an integer greater than 1. The particular differential detection sequence may be a result of an element-by-element multiplication of the particular received symbol sequence and the conjugate of an m-symbol delayed version of the particular received symbol sequence. The receiver may calculate differential decision metrics based on the differential detection sequence and based on a set of differential symbol sequences generated from the set of possible transmitted symbol sequences. The receiver may generate a decision as to which of a set of possible transmitted symbol sequences resulted in the received symbol sequence, where the decision is based on the differential decision metrics and the set of possible transmitted symbols sequences.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 30, 2018
    Assignee: Maxlinear, Inc.
    Inventors: Ioannis Spyropoulos, Anand Anandakumar
  • Patent number: 10069621
    Abstract: A baseband filter unit inputs a received signal including a sine wave at least in a portion of the received signal. A differentiator differentiates the received signal. A first correlator correlates the received signal differentiated and a cosine waveform. An acquisition unit acquires a value of the received signal as an offset value, at a time estimated based on a result of correlation in the first correlator and at a time when the received signal includes a sine waveform. A correction unit corrects the received signal in accordance with the offset value acquired in the acquisition unit.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 4, 2018
    Assignee: JVC KENWOOD Corporation
    Inventor: Akiyoshi Fujita
  • Patent number: 10049582
    Abstract: In an apparatus installed on a boat (A) in plural boats including (A, B) for avoiding collision with the boat (B), there are equipped with first and second radio-wave transceiver units installed at spaced positions that transmit to and receive radio waves of a predetermined frequency from the boat (B), and first and distance calculating units that calculate clearance distances from the boat (B) based on attenuation degree of the radio waves transmitted from the boat (B). An intersection point of circles whose origins in an x-y coordinate plane are set to positions corresponding to the first and second positions and whose radii are set to values corresponding to the calculated clearance distances. Direction and position of the boat (B) are estimated from the intersection point, and an instruction necessary for avoiding collision with the boat (B) is issued based on the estimated direction and position.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 14, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Hashizume, Ryuichi Kimata
  • Patent number: 10050649
    Abstract: Devices and methods are provided where a first signal is provided via an interface, and a second signal is provided related to the suitability of the first signal for transmission via the interface.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: August 14, 2018
    Assignee: Infineon Technologies AG
    Inventors: Christof Bodner, Mario Motz, Wolfgang Scherr
  • Patent number: 10034258
    Abstract: A signal detector device and method includes a quadrature demodulator configured to receive an input signal, a first reference signal, and a second reference signal in quadrature with the first reference signal, the quadrature demodulator further configured to produce a plurality of output signals from the input signal and the first and the second reference signal, the plurality of output signals indicating the amplitude and phase of the input signal, and one or more inverting circuits, the inverting circuits having a first and a second programmable output polarity, the plurality of output signals being output by the quadrature demodulator when the inverting circuits are set to the first programmable output polarity, the plurality of output signals being inverted and output by the quadrature demodulator when the inverting circuits are set to the second programmable output polarity.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 24, 2018
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Daniele Dal Maistro, Marc Tiebout
  • Patent number: 10009063
    Abstract: Aspects of the subject disclosure may include, for example, receiving, by a network element of a distributed antenna system, a reference signal, a control channel and a first modulated signal at a first carrier frequency, the first modulated signal including first communications data provided by a base station and directed to a mobile communication device. The instructions in the control channel direct the network element of the distributed antenna system to convert the first modulated signal at the first carrier frequency to the first modulated signal in a first spectral segment. The reference signal is received at an in-band frequency relative to the control channel. Other embodiments are disclosed.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: June 26, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Irwin Gerszberg, Paul Shala Henry, Robert Bennett, Farhad Barzegar, Donald J Barnickel, Thomas M. Willis, III
  • Patent number: 10003440
    Abstract: A receiver circuit comprising: an input terminal configured to receive an input-signal; an interfering-signal-strength-calculator configured to determine an interfering-signal-strength-indicator based on the input signal; a compensation-block configured to apply a co-channel-interference compensation operation to the input-signal in order to generate a compensated-input-signal; a compensation-weighting-component configured to apply a compensation-weighting-factor to the compensated-input-signal in order to generate a weighted-compensated-input-signal, wherein the compensation-weighting-factor is based on the interfering-signal-strength-indicator; a delay-block configured to apply a delay to the input-signal in order to generate a delayed-input-signal; a delayed-weighting-component configured to apply a delayed-weighting-factor to the delayed-input-signal in order to generate a weighted-delayed-input-signal, wherein the delayed-weighting-factor is based on the interfering-signal-strength-indicator; and a signa
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: June 19, 2018
    Assignee: NXP B.V.
    Inventor: Wim van Houtum
  • Patent number: 9985744
    Abstract: Described herein is a wireless receiver configured to receive wireless signals containing data packets transmitted according to an undetermined communications protocol selected from at least a first communications protocol and a second communications protocol. Without necessarily decoding the data packets, for example according to either the first or the second communication protocol, the described wireless receiver is able to concurrently detect presence of signal transmission in the first communications protocol or the second communications protocol. In some arrangements, the described wireless receiver may be configured to differentiate between the first communications protocol and the second communications protocol. The ability of the wireless receiver to detect presence of signal transmission by other wireless devices may provide intelligence to an associated wireless transmitter of any concurrent signal transmission so as to minimize interference.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 29, 2018
    Assignee: Cohda Wireless Pty Ltd.
    Inventor: Paul Dean Alexander
  • Patent number: 9967125
    Abstract: A receiver detects a received signal, transmitted by a transmitter to carry payload data as Orthogonal Frequency Division Multiplexed (OFDM) symbols in divided frames, each frame including a preamble including plural bootstrap OFDM symbols. A detector circuit detects, from the bootstrap OFDM symbols, a synchronization timing for converting a useful part of the bootstrap OFDM symbols into the frequency domain. A bootstrap processor detects an estimate of the channel transfer function from a first OFDM symbol, and a demodulator circuit recovers the signaling data from the bootstrap OFDM symbols using the estimate. The bootstrap processor includes an up-sampler configured to receive the bootstrap OFDM symbols, to form an up-sampled frequency domain version of the bootstrap OFDM symbol, and an output processor configured to identify a peak correlation result, to determine frequency offset of the received signal from a relative position of the peak correlation result in the frequency domain.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: May 8, 2018
    Assignee: Sony Corporation
    Inventor: Samuel Asangbeng Atungsiri
  • Patent number: 9961681
    Abstract: Embodiments of the present disclosure provide an information transmission method, user equipment (UE), and a base station. The method includes: determining, by the UE, at least one candidate sequence of a synchronization signal of an access cell and multiple candidate access resources of the access cell; detecting, by the UE, the synchronization signal according to the at least one candidate sequence; and determining, by the UE, a resource location of an actual access resource corresponding to a detected actual sequence in the access cell according to a location relationship between each candidate access resource in the multiple candidate access resources and the resource on which the access cell is located and a correspondence between the any candidate sequence in the at least one candidate sequence and the multiple candidate access resources.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 1, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lixia Xue, Lei Guan, Yongxing Zhou, Jingyuan Sun
  • Patent number: 9952648
    Abstract: A digital filtering device is provided that makes it possible to reduce the size and power consumption of circuitry for filtering using FFT and IFFT. The digital filtering device includes a first filtering unit for receiving first data in a first sequence, performing a first filtering process including a fast Fourier transformation process and an inverse fast Fourier transformation process on the first data, and outputting second data in the first sequence.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 24, 2018
    Assignee: NEC CORPORATION
    Inventor: Atsufumi Shibayama
  • Patent number: 9942671
    Abstract: A method transmits a multiplicity of digital data packets from a transmitter to a receiver arranged in a mobile device. A plurality of data packets in each case is combined to form a block. The multiplicity of data packets are sent out by the transmitter in such a manner that the time intervals between the individual data packets of the respective block vary over the blocks for a plurality of successive blocks, and/or the time duration of the blocks varies for a plurality of successive blocks, and/or the time intervals between the individual data packets in the block vary for a number of blocks. The blocks of data packets are received and decoded by the receiver.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: April 10, 2018
    Assignee: Sivantos Pte. Ltd.
    Inventors: Jie Zhang, Mattias Lampe
  • Patent number: 9923743
    Abstract: A broadcast signal transmitter is presented. The broadcast signal transmitter includes a Forward Error Correction (FEC) encoder configured to perform error correction processing on Physical Layer Pipe (PLP) data, a bit interleaver configured to bit-interleave the PLP data, a mapper configured to perform constellation mapping on the PLP data, a framer configured to generate a signal frame comprising the PLP data, and a waveform generator configured to generate a transmission signal comprising the signal frame. The signal frame of the transmission signal comprises a bootstrap, a preamble, and a data part. The bootstrap comprises preamble structure information about the preamble. The preamble comprises at least one preamble symbol. The at least preamble symbol carries Layer 1 (L1) signaling data for the signal frame. The first preamble symbol comprises preamble_symbol_number information, and the preamble_symbol_number information indicates a number of preamble symbols other than the first preamble symbol.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: March 20, 2018
    Assignee: LG Electronics Inc.
    Inventors: Jaehyung Kim, Woosuk Ko, Sungryong Hong
  • Patent number: 9912608
    Abstract: Disclosed herein is a method and system for minimizing the required bandwidth for a cloud based unicast communication with a vehicle operating within a road network, where the cloud comprises a cloud logic and the vehicle comprises a vehicle internal logic. The method comprising the steps of: determining a current position with direction of the vehicle within the road network; setting an interval at which the vehicle is to report an update on its position based on a most probable path of the vehicle and the complexity thereof, where the most probable path is a set of possible paths a predetermined distance ahead of the vehicle that it is most probable to travel along given its current position with direction within the road network; communicating the set interval to the vehicle internal logic; and reporting an updated current position of the vehicle to the cloud with the set reporting interval.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: March 6, 2018
    Assignee: Volvo Car Corporation
    Inventors: Erik Israelsson, Karl-Johan Jonsson
  • Patent number: 9912512
    Abstract: Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: March 6, 2018
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Shaohua Zhao, Wuxue Ni, Biqiang Luo, Li Li
  • Patent number: 9891324
    Abstract: A demodulation unit for a GNSS signal processing device includes an operator that uses a first error detecting method when one of a first selection criterion in which an early late differential value is higher than a first threshold (positive value) and an early differential value is lower than a third threshold (negative value), and a second selection criterion in which the early late differential value is lower than a second threshold (negative value) and a late differential value is lower than a fourth threshold (negative value) is satisfied, and the operator uses a second error detecting method when neither criterion is satisfied. A code phase range where an error detection value is not 0 is wide with the first error detecting method, and the code phase range where the error detection value is not 0 is narrow with the second error detecting method.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: February 13, 2018
    Assignee: Furuno Electric Co., Ltd.
    Inventor: Takeshi Nagano