Transmitter Patents (Class 375/146)
  • Patent number: 10763914
    Abstract: Infrastructure electronics equipment incorporates infrastructure Local-Site Transports (LSTs). LSTs convey payload sampled signals over imperfect electromagnetic (EM) pathways whose physical properties are usually unknown when the equipment (e.g., Cameras, Displays, Set-Top Boxes) is manufactured. Prior LSTs hedge against EM pathway degradation in several ways: requiring high-quality cables (e.g., HDMI); restricting transmission distance, (e.g., HDMI); and/or reducing quality, via compression, to extend transmission distance somewhat (e.g., Ethernet). The subject of this disclosure is an infrastructure LST for sampled signals that causes the physical errors inevitably arising from propagation of sensory payloads over imperfect EM pathways to manifest in a perceptually benign manner, leveraging legacy infrastructure and reducing costs to achieve a favorable ratio of fidelity to transmission distance.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: September 1, 2020
    Assignee: hyPHY USA Inc.
    Inventors: Rob Hannebauer, Todd Rockoff, Dean Rubine
  • Patent number: 10742392
    Abstract: The subject matter described herein includes methods, systems, and computer readable medium for scrambled communication of data to, from, or over a medium. According to one aspect, the subject matter described herein includes a method for communicating data in scrambled form to or over a medium. The method includes receiving analog or digital data to be transmitted to or over a medium. The method further includes modulating samples representing at least signal using the analog or digital data to produce data modulated signal samples. The method further includes scrambling the data modulated signal samples using a predetermined scrambling algorithm. The method further includes transmitting the scrambled data modulated signal samples to or over the medium. The method further includes descrambling samples received from the medium using the inverse of the predetermined scrambling algorithm to obtain the unscrambled modulated signal samples, which can then be demodulated to retrieve original data.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: August 11, 2020
    Assignee: Kunal Kandekar
    Inventor: Kunal Kandekar
  • Patent number: 10735230
    Abstract: A transmitter in a first wireless communication device and method therein are disclosed. The transmitter comprises a modulator and a rate selector configured to select a data rate. The rate selector comprises an input configured to receive input bits and an output to provide the bits with the selected data rate. The transmitter further comprises a bit to symbol mapper configured to receive the bits from the rate selector and map the bits to symbols of an arbitrary alphabet. The transmitter further comprises a spreading unit configured to spread the symbols received from the bit to symbol mapper to a chip sequence by means of a spreading code. The transmitter further comprises a re-mapping unit configured to map the chip sequence received from the spreading unit to produce signals for providing to the modulator.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: August 4, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Miguel Lopez, Bo Hagerman, Dennis Sundman
  • Patent number: 10673674
    Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: June 2, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Jing Lei, Jing Sun, Tamer Kadous
  • Patent number: 10651997
    Abstract: The present disclosure provides in some embodiments pilot signal configuration methods and pilot signal configuration devices. The pilot signal configuration method includes steps of: determining configuration information about a pilot signal to be transmitted within a special downlink subframe for a UE; and transmitting the configuration information to the UE. According to some embodiments of the present disclosure, it is able to achieve the configuration of the pilot signal to be transmitted within the special downlink subframe.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: May 12, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Rakesh Tamrakar, Runhua Chen, Qiubin Gao, Wenhong Chen, Hui Li
  • Patent number: 10638274
    Abstract: Systems and methods are disclosed herein for an enhanced Multimedia Broadcast Multicast Service (MBMS) in a wireless communications network. In one embodiment, a number of base stations in a MBMS zone, or broadcast region, accommodate both Spatial Multiplexing (SM) enabled user elements and non-SM enabled user elements. In another embodiment, a number of base stations form a MBMS zone, or broadcast region, where the MBMS zone is sub-divided into an SM zone and a non-SM zone. In another embodiment, the wireless communications network includes multiple MBMS zones. For each MBMS zone, base stations serving the MBMS zone transmit an MBMS zone identifier (ID) for the MBMS zone. The MBMS zone ID may be used by a user element for decoding and/or to determine when to perform a handoff from one MBMS zone to another.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: April 28, 2020
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Aaron Callard, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang
  • Patent number: 10581481
    Abstract: A communication device, a method of operating a communication device, and a spread-spectrum receiver are disclosed. The method includes receiving an incoming RF signal, demodulating the incoming RF signal to generate a baseband signal, filtering the baseband signal with a normalized matched filter having filter characteristics matched to a pulse-shaping filter of the transmitter that generated the incoming RF signal, and extracting a received signal from a normalized output generated by the normalized matched filter. As a result, interferences and noise from harsh environments may be suppressed.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: March 3, 2020
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Hussein Moradi, Jonathan D. Driggs, Arslan J. Majid, Behrouz Farhang, Taylor M. Sibbett
  • Patent number: 10573157
    Abstract: A wireless sensor device includes a computing device, printable circuitry, sensors, and antennas formed on one or more panels. The wireless sensor device may be configured to take environment measurements, such as temperature, gas, humidity, and wirelessly communicate the environment measurements to a remote computing device.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 25, 2020
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Muhammad Fahad Farooqui, Atif Shamim
  • Patent number: 10567022
    Abstract: The disclosure relates to a radio transceiving device, comprising: a multi-antenna array; a main transceiver coupled to the multi-antenna array, wherein the main transceiver is configured to beamform a first plurality of digital signals over a total transceiver bandwidth, wherein a part of the beamforming is processed in digital domain and another part of the beamforming is processed in analog domain; and an auxiliary transceiver coupled to the multi-antenna array, wherein the auxiliary transceiver is configured to beamform a second plurality of digital signals over a fraction of the total transceiver bandwidth, wherein the beamforming is processed in digital domain.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: February 18, 2020
    Assignee: HUAWEI TECHNOLOGIES DUESSELDORF GMBH
    Inventors: Jian Luo, Nikola Vucic, Mario Castaneda, Titos Kokkinos
  • Patent number: 10523480
    Abstract: A method for k-bit Enumerative Sphere Shaping (ESS) of multidimensional constellations includes converting a first set of a plurality of uniformly distributed data bits from a serial data bit stream to a first unsigned amplitude sequence comprising a plurality of amplitudes bounded by a spherical constellation of maximum energy levels of a plurality of energy levels, wherein the first unsigned amplitude sequence has a Gaussian distribution and each of the energy levels is determined by a respective one of the amplitudes in the amplitude sequence. The first unsigned amplitude sequence is converted to a first shaped data bit sequence. The first shaped data bit sequence is combined with a second set of a one or more uniformly distributed data bits from the serial data bit stream to form a combined data stream. The combined data stream is mapped to a combined amplitude stream.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: December 31, 2019
    Assignee: NXP B.V.
    Inventors: Yunus Can Gultekin, Frans M. J. Willems, Wim van Houtum, Semih Serbetli
  • Patent number: 10484058
    Abstract: A transmission method includes encoding processing that generates an encoded block, modulation processing that generates symbols from the encoded block, phase change processing that changes the phase of the symbols, and transmission processing that arranges the symbols in data carriers and transmits the symbols. The transmission processing configures a frame by arranging symbol groups in order in the frequency direction and transmits the frame. The symbol groups each include a symbol generated from a first encoded block and a symbol generated from a second encoded block. The phase change processing includes changing the phase of symbols the same symbol group using the same phase change value.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi, Hiroyuki Motozuka
  • Patent number: 10459022
    Abstract: A long distance wireless phasing voltmeter has a first unit that uses two data bits per second to modulate a radio frequency carrier wave for simplex transmission to a second unit. Two bits define by their separation the phase difference between a voltage signal waveform on a reference conductor and a universal waveform generated from a GPS Pulse. The second unit also generates a universal waveform from a GPS Pulse and compares it to the voltage signal waveform on a local field conductor to obtain a second phase difference. The second unit compares the two phase differences to determine grid frequency, absolute phase angle, phase difference, phase rotation, and phase sequence between the reference conductor and the field conductor. Two pulses can be transmitted more reliably over data links miles apart than a longer signal and even when the data transmission occurs over a cell phone data link.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 29, 2019
    Inventor: Walter S. Bierer
  • Patent number: 10454727
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for modulating and demodulating transpositional modulated (TM) signals. One aspect features a method of modulating a carrier signal that include the actions of generating a TM signal by generating a sinusoidal signal, and modulating the sinusoidal signal based on a data signal to provide the TM signal. Inserting the TM signal into a carrier signal to provide a TM modulated carrier signal. Modulating the TM modulated carrier signal with a non-TM signal to provide a combined signal. Transmitting the combined signal.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: October 22, 2019
    Assignee: TM IP Holdings, LLC
    Inventors: Harvey C. Woodsum, Richard C. Gerdes
  • Patent number: 10432247
    Abstract: Sequence trigger circuitry may be configured to repeat command sequences to switch between communication modes of a RFFE. The circuitry may include a first logic circuitry to, in response to a trigger signal, generate a first output signal or a second output signal to activate a first command sequence or a second command sequence, respectively. The circuitry may also include a second logic circuitry to activate a third command sequence based on a comparison of a clock output signal with a first timer value and upon generating the first output signal. The first command sequence and the third command sequence may switch the RFFE into a receive mode of the plurality of modes. The circuitry may include a third logic circuitry to activate a fourth command sequence based on a comparison of the clock output signal with a second timer value and upon generating the second output signal.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: October 1, 2019
    Assignee: Intel IP Corporation
    Inventors: Peter Pawliuk, Simon A. Hughes
  • Patent number: 10432442
    Abstract: A method for transmitting multiple communications of different types, in particular sporadic (MTC) or cellular (broadband) communication including symbols to be transmitted, corresponding to communication services implementing a modulation having M subcarriers of the FBMC-OQAM or OFDM-OQAM type. The method uses linear frequency filtering of a sequence of length N including symbols having L coefficients that are parametrizable according to the communication, L, N, and M being natural numbers, so as to generate N+L?1 symbols, reducing out-of-band spurious emissions. The method also uses, no matter what the communication is, a single frequency/time transform (IFFT) having a size M, where N<M. For sporadic communications (MTC) in a lower frequency band, the constraints on the out-of-band side-lobes are more stringent on the filter and FBMC modulation is thus better adapted.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: October 1, 2019
    Assignee: Orange
    Inventor: Hao Lin
  • Patent number: 10411753
    Abstract: The present invention provides a method and an electronic apparatus for transmitting a packet with changeable spreading factor. The method comprises: utilizing a spreading circuit to select a spreading factor from a plurality of spreading factors according to a transmitting condition to adjust a spreading for the packet; and transmitting the packet. The electronic apparatus comprises: a spreading circuit and a transmitting circuit. The spreading circuit is utilized for selecting a spreading factor from a plurality of spreading factors according to a transmitting condition to adjust the spreading for the packet. The transmitting circuit is coupled to the spreading circuit, and utilized for transmitting the packet.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: September 10, 2019
    Assignee: MEDIATEK INC.
    Inventors: Jianhan Liu, Chien-Fang Hsu
  • Patent number: 10374739
    Abstract: The present invention relates to a controller, an access node, an aggregation node and methods thereof in a radio communication network. The controller comprises: a processor configured to select a plurality of spreading codes that are non-orthogonal or short orthogonal, and a transmitter coupled with the processor. The transmitter is configured to notify at least one of an access node or an aggregation node of the plurality of spreading codes.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: August 6, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Tao Cai, Yinggang Du, Mario Costa
  • Patent number: 10356759
    Abstract: Various embodiments are generally directed to parameter encoding techniques for wireless communication networks. In various embodiments, a transmitting device may communicate a plurality of wireless communication parameter values using a single index value comprised in a field of a header or frame. In various embodiments, a receiving device may use the index value to identify the plurality of wireless communication parameter values by consulting mapping information specifying mappings of possible index values to respective sets of parameter values. In some embodiments, the mapping information may specify mappings associated with a defined mapping scheme.
    Type: Grant
    Filed: October 1, 2016
    Date of Patent: July 16, 2019
    Assignee: INTEL CORPORATION
    Inventors: Laurent Cariou, Carlos Cordeiro
  • Patent number: 10349229
    Abstract: Systems and methods are disclosed herein for an enhanced Multimedia Broadcast Multicast Service (MBMS) in a wireless communications network. In one embodiment, a number of base stations in a MBMS zone, or broadcast region, accommodate both Spatial Multiplexing (SM) enabled user elements and non-SM enabled user elements. In another embodiment, a number of base stations form a MBMS zone, or broadcast region, where the MBMS zone is sub-divided into an SM zone and a non-SM zone. In another embodiment, the wireless communications network includes multiple MBMS zones. For each MBMS zone, base stations serving the MBMS zone transmit an MBMS zone identifier (ID) for the MBMS zone. The MBMS zone ID may be used by a user element for decoding and/or to determine when to perform a handoff from one MBMS zone to another.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: July 9, 2019
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Aaron Callard, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang
  • Patent number: 10339623
    Abstract: A method of generating a phase modulated signal includes generating a sequence of phase modulated host symbols having continuous, antipodal phase transitions between adjacent ones of the host symbols representing different states, and generating a sequence of overlay symbols each spanning a respective set of the host symbols. The method further includes rotating the continuous, antipodal phase transitions between the adjacent ones of the host symbols in each set of the host symbols in a same rotation direction according to a symbol state of the respective overlay symbol spanning the set of the host symbols, and generating a phase modulated transmit signal that conveys the continuous, antipodal phase transitions rotated according to the symbol states of the overlay symbols. For M-ary PSK, the method further includes encoding both antipodal and non-antipodal host symbol phase shifts to carry the data of the overlay symbols.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: July 2, 2019
    Assignee: Harris Corporation
    Inventor: Philip Smith Kossin
  • Patent number: 10306632
    Abstract: Techniques are described for wireless communication. A first method includes winning a contention for access to an unlicensed radio frequency spectrum band, and transmitting at least a portion of a channel usage beacon signal (CUBS) over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted in a number of frequency interlaces of the unlicensed radio frequency spectrum band. A second method includes winning a contention for access to an unlicensed radio frequency spectrum band; determining whether the contention is won within a threshold time before a next symbol period boundary; and transmitting at least a portion of a CUBS over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted during a preamble including a fractional period of a first symbol period. The at least portion of the CUBS may be based at least in part on the determining.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 28, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Srinivas Yerramalli, Durga Prasad Malladi, Naga Bhushan, Yongbin Wei, Tao Luo, Hao Xu, Wanshi Chen, Shimman Arvind Patel, Aleksandar Damnjanovic, Xiaoxia Zhang
  • Patent number: 10280317
    Abstract: Graphene ink compositions comprising nitrocellulose and related methods of use comprising either thermal or photonic annealing.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 7, 2019
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Mark C. Hersam, Ethan B. Secor, Theodore Z. Gao
  • Patent number: 10277082
    Abstract: When a voltage across an element of a voltage converter or an inverter circuit has reached an upper limit of a withstanding voltage of the element and it is determined that received power of a power-receiving device has not reached a target value, an instruction for changing at least one of inductance and capacitance of an element which is disposed from a receiving-side pad to a filter circuit in the power-receiving device is transmitted from a power-transmitting device to the power-receiving device so as to satisfy a condition that the received power approaches a target value.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: April 30, 2019
    Assignee: IHI Corporation
    Inventor: Takahiko Murayama
  • Patent number: 10263670
    Abstract: A system for transmitting pilot signals has first signal processing circuitry for generating a pilot signal at a transmitting unit. An MLO modulation circuit modulates the pilot signal using quantum level overlay modulation to apply at least one orthogonal function to the pilot signal. A transceiver transmits the modulated pilot signal from the transmitting unit over a pilot channel. The at least one orthogonal function applied to the pilot signal substantially reduces pilot channel contamination on the pilot channel from other pilot channels.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: April 16, 2019
    Assignee: NxGen Parners IP, LLC
    Inventor: Solyman Ashrafi
  • Patent number: 10263721
    Abstract: A method of determining the presence of a secondary carrier signal in a time-domain sum-signal including a primary carrier signal is disclosed, the method comprising: transforming the sum-signal into the frequency domain; extracting at least one peak corresponding to a heterodyne tone from the transformed sum-signal; determining the presence of a secondary carrier signal in the sum-signal based on said at least one peak. A corresponding apparatus is also disclosed.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 16, 2019
    Assignee: Park Air Systems Limited
    Inventors: Desmond Keith Phillips, Paul Andrew Noble
  • Patent number: 10250232
    Abstract: Systems (400) and methods for removing dither introduced into a transmitted RF signal. The method comprising: receiving, by a receiver, the transmitted RF signal; converting, by the receiver, the transmitted RF signal into a discrete-time IF signal comprising a sequence of samples, where at least a first sample of said samples has a first sample duration different than a second sample duration of at least a second sample of said samples; and performing operations by a sub-sample dither removal device of the receiver to modify a sample timing of the discrete-time IF signal by decreasing or increasing the first sample duration of the first sample using a digital signal processing technique in a digital domain.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: April 2, 2019
    Assignee: Harris Global Communications, Inc.
    Inventors: James A. Norris, John W. Nieto, Michael A. Wadsworth, William N. Furman
  • Patent number: 10229693
    Abstract: An encoder for encoding an audio signal includes an analyzer for analyzing the audio signal and for determining analysis prediction coefficients from the audio signal. The encoder includes a converter for deriving converted prediction coefficients from the analysis prediction coefficients, a memory for storing a multitude of correction values and a calculator. The calculator includes a processor for processing the converted prediction coefficients to obtain spectral weighting factors. The calculator includes a combiner for combining the spectral weighting factors and the multitude of correction values to obtain corrected weighting factors. A quantizer of the calculator is configured for quantizing the converted prediction coefficients using the corrected weighting factors to obtain a quantized representation of the converted prediction coefficients.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: March 12, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Konstantin Schmidt, Guillaume Fuchs, Matthias Neusinger, Martin Dietz
  • Patent number: 10225856
    Abstract: Resources are allocated on a shared downlink control channel by an allocation table that is partitioned into a first, fixed length partition and into at least one second, variable length partition. The fixed length and the modulation and coding scheme MCS of the first partition is known a priori. The second variable length and the MCS of the second partition may be given in the first partition. Robustness may be varied between different second partitions of the same allocation table, or even within a single second partition to account for users at different proximity to the network node giving the allocations. Users may be identified in the first partition (e.g., a fixed number of users), and/or in the second partition (either additional allocated users or all users being allocated if the first partition does not identify users). Method, apparatus, computer program, integrated circuit and systems are detailed.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: March 5, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Jussi Kahtava, Mika Rinne, Olav Tirkkonen
  • Patent number: 10193396
    Abstract: The embodiments described herein include a transmitter that transmits a power waves (e.g., radio frequency (RF) signal waves) to create a three-dimensional pocket of energy. At least one receiver can be connected to or integrated into electronic devices and receive power from the pocket of energy. A wireless power network may include a plurality of wireless power transmitters each with an embedded wireless power transmitter manager, including a wireless power manager application. The wireless power network may include a plurality of client devices with wireless power receivers. The wireless power transmitter managers may receive a plurality of power transfer attributes from one or more of the wireless power receivers, client devices, a management control system, and sensors. A master transmitter manager may select at least one of the power transmitter managers to control the transmission of power waves in accordance with the plurality of power transfer attributes.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: January 29, 2019
    Assignee: Energous Corporation
    Inventors: Douglas Bell, Michael A. Leabman
  • Patent number: 10182429
    Abstract: Disclosed is a method and apparatus for transmitting information in a communication system. The present invention relates to a millimeter wave beamforming-based 5G or pre-5G wireless communication system for supporting a higher data rate beyond a 4G network or LTE system.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: January 15, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Taik Kim, Seok-Ki Ahn, Jeong-Ho Park, Chi-Woo Lim, Jae-Weon Cho
  • Patent number: 10178656
    Abstract: A method and apparatus for uplink transmission by a user equipment (UE) includes receiving an uplink grant for data transmission in a subframe on an uplink channel, wherein the uplink grant includes an assignment to a resource block. The UE determines a resource block for sending a channel usage beacon signal (CUBS) over a contention-based spectrum based on the assignment included in the uplink grant. The CUBS reserves the uplink channel for the data transmission by indicating that the UE is sending the data transmission in a later subframe according to the assignment. The UE transmits the CUBS in a preceding subframe on the resource block in response to performing a successful clear channel assessment on the uplink channel, the preceding subframe directly preceding the subframe for the uplink data transmission.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Tao Luo, Yongbin Wei
  • Patent number: 10162101
    Abstract: A backlight module includes a bottom plate, and a fixing element which is fixed at one side of the bottom plate and used for fixing a quantum tube. The fixing element includes a bottom wall, and a first lateral wall, a second lateral wall, and a third lateral wall which extend upwards from a first end, a second end, and a third end of the bottom wall respectively. The first lateral wall and the second lateral wall are arranged facing each other. The quantum tube is fixed in an accommodating space that is formed by the bottom, the first lateral, the second lateral, and the third lateral walls. In the backlight module, since the quantum tube is fixed in a stable manner, a structural reliability of the backlight module can be ensured, and a high color gamut of the backlight module can be realized.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: December 25, 2018
    Assignees: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Gege Zhou
  • Patent number: 10158396
    Abstract: Infrastructure electronics equipment incorporates infrastructure Local-Site Transports (LSTs). LSTs convey payload sampled signals over imperfect electromagnetic (EM) pathways whose physical properties are usually unknown when the equipment (e.g., Cameras, Displays, Set-Top Boxes) is manufactured. Prior LSTs hedge against EM pathway degradation in several ways: requiring high-quality cables (e.g., HDMI); restricting transmission distance, (e.g., HDMI); and/or reducing quality, via compression, to extend transmission distance somewhat (e.g., Ethernet). The subject of this disclosure is an infrastructure LST for sampled signals that causes the physical errors inevitably arising from propagation of sensory payloads over imperfect EM pathways to manifest in a perceptually benign manner, leveraging legacy infrastructure and reducing costs to achieve a favorable ratio of fidelity to transmission distance.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: December 18, 2018
    Assignee: Rockoff Security PTY LTD
    Inventors: Rob Hannebauer, Todd Rockoff, Dean Rubine
  • Patent number: 10158403
    Abstract: The present disclosure relates to a method performed in a radio device for transmitting a multi-carrier waveform comprising multi-carrier symbols. The method comprises precoding S2 the time domain waveform of the multi-carrier symbols to a plurality of transmitter antenna elements of the radio device. The precoding S2 comprises switching S2b from using S2a first set of precoder weights to using S2c a second set of precoder weights, different from the first set of weights. The switching S2b is done by use of at least one intermediate set of precoder weights during an interlude between two of the symbols in time domain. The method also comprises transmitting S3 the precoded signal from the transmitter antenna elements.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: December 18, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Robert Baldemair
  • Patent number: 10153645
    Abstract: An example method is performed at a first transmitter in communication with other power transmitters, the method including: receiving, from a respective transmitter of the other transmitters, information indicating at least (1) a network address, and (2) status information regarding whether the respective transmitter is in master or non-master mode. The method also includes, if none of the other power transmitters is in the master mode, determining whether a first network address of the first transmitter is lower than respective network addresses of the other transmitters. The method further includes: if the first network address is lower than the respective network addresses: operating the first transmitter in the master mode; and sending an indication that the first transmitter is in the master mode. While the first transmitter is in the master mode, the first transmitter assigns each of the other transmitters to transmit power waves to one or more receivers.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: December 11, 2018
    Assignee: Energous Corporation
    Inventors: Douglas Bell, Michael A. Leabman
  • Patent number: 10141961
    Abstract: A received signal is enhanced by removing distortion components of a concurrently transmitted signal. A received signal is acquired in a receive frequency band concurrently with transmission of a transmit signal in a transmit frequency band. The received signal includes an intermodulation distortion component of the transmit signal. A representation of the transmit signal is processed using a non-linear predictor to output a distortion signal representing predicted distortion components in the received signal. The received signal is enhanced using the distortion signal by removing the predicted distortion components from the received signal corresponding to the distortion signal.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: November 27, 2018
    Assignee: NanoSemi, Inc.
    Inventors: Yanyu Huang, Zohaib Mahmood, Yan Li, Alexandre Megretski, Helen H. Kim
  • Patent number: 10142776
    Abstract: The disclosure provides a method, a device and a communication system for processing a common search area. The method includes: acquiring resource indication information about a first common search area of a control channel, or resource indication information about a first common search area and resource indication information about at least one second common search area; and determining, according to the resource indication information about the first common search area, or the resource indication information about the first common search area and the resource indication information about at least one second common search area, a location of the first common search area, or locations of the first common search area and at least one second common search area.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: November 27, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yuanjie Li, Zhenfei Tang
  • Patent number: 10116482
    Abstract: A method and apparatus for transmitting symbols for use in an FBMC wireless communication system are provided. The FBMC symbol transmission method includes determining a truncation point of a first FBMC symbol overlapping a transient transmission duration based on an energy distribution characteristic of a first filter applied to the first FBMC symbol, wherein the first FMBC symbol is to be transmitted in a non-transient transmission duration, truncating the first FBMC symbol at the truncation point in the transient transmission duration, changing an energy characteristic of a second filter, filtering the first FBMC symbol using the second filter, filtering FBMC symbols positioned within the non-transient transmission duration based on a non-transient transmission duration characteristic; and transmitting the filtered FBMC symbols at a corresponding transmission timing.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: October 30, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeohun Yun, Chanhong Kim, Kyeongyeon Kim, Jiyun Seol, Taeyoung Kim, Byunghwan Lee, Ka Ming Ho
  • Patent number: 10063401
    Abstract: A method for transmitting signal based on a filter bank multi-carrier (FBMC) modulation, a method for receiving signal based on the FBMC modulation, and a corresponding transmitting device and receiving device are disclosed. The method includes preprocessing determined symbols in a data block, modulating the preprocessed data block with the FBMC modulation, truncating the modulated data block to remove a part or all of tailing data therefrom, and transmitting the truncated modulated data block, from which the part or all of tailing data has been removed, and the determined symbols are affected by the truncating of the modulated data block. The data block includes at least one symbol. The method relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE).
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: August 28, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pengfei Sun, Bin Yu, Dalin Zhu
  • Patent number: 10033491
    Abstract: Provided is a method for generating a preamble of a transmission signal for human body communication, the method including using a frequency shift code (FSC) of which a length is adjusted according to an operating clock frequency or a transmission rate and a first pseudo random binary sequence (PRBS) code of p chips where p is a natural number to generate a first preamble unit block of n chips where n is a natural number, using the FSC and a second PRBS code of p? chips to generate a second preamble unit block of n? chips, and arraying the first preamble unit block consecutively and repeatedly and disposing the second preamble unit block at a next stage to form the preamble of the transmission signal.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: July 24, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Tae Wook Kang, Sung Weon Kang, Hyung-Il Park, Sung Eun Kim, Jung Bum Kim, Kyung Hwan Park, Kwang Il Oh, In Gi Lim, Byounggun Choi
  • Patent number: 10015823
    Abstract: A terminal device includes a transmitter that transmits a random access preamble, a higher layer processor that configures, based on a higher layer signal, a first identity corresponding to a first component carrier group and a second identity corresponding to a second component carrier group; a counter that, in a case that two or more component carriers are configured for an uplink, counts a number of transmission of the random access preamble; and a medium access control (MAC) layer processor that indicates a random access problem to an upper layer in a case that the number exceeds a maximum number of transmission of the random access preamble on a master component carrier of the first component carrier group or a master component carrier of the second component carrier group.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: July 3, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Wataru Ohuchi, Shohei Yamada, Yasuyuki Kato, Daiichiro Nakashima, Katsunari Uemura
  • Patent number: 10003482
    Abstract: In an embodiment, an apparatus includes: a first receiver to receive and downconvert a first radio frequency (RF) signal to a second frequency signal and to output a first digitized signal, the first receiver comprising a full-band receiver to receive at least a substantial portion of a band of interest; a second receiver to receive and downconvert a second RF signal to a third frequency signal and to output a second digitized signal, the second receiver comprising a narrow-band receiver to receive a first channel of the band of interest; a digital circuit to process at least one of the first and second digitized signals; and a controller to configure the first receiver and the second receiver and control the digital circuit.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: June 19, 2018
    Assignee: Silicon Laboratories Inc.
    Inventor: Michael Stephen Johnson
  • Patent number: 9991895
    Abstract: A wireless radio-frequency transmission apparatus includes a phase frequency detector, a charge pump, a loop filter and a twin voltage-controlled oscillator. The twin voltage-controlled oscillator includes a first oscillator and a second oscillator. When the twin voltage-controlled oscillator is in a reception mode, the first and the second oscillators are coupled to each other to form a quadrature voltage-controlled oscillator, and the quadrature voltage-controlled oscillator, the phase frequency detector, the charge pump and the loop filter constitute a phase-locked loop to generate quadrature carriers. When the twin voltage-controlled oscillator is in a transmission mode, the first oscillator, the phase frequency detector, the charge pump and the loop filter constitute a phase-locked loop, and the second oscillator performs frequency modulation on transmitted data.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: June 5, 2018
    Assignee: INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES
    Inventors: Jingjing Chen, Nanjian Wu, Haiyong Wang, Weiyang Liu, Peng Feng
  • Patent number: 9967758
    Abstract: A method and system for multiple access in a system utilizing two-dimensional signal modulation. The method includes spreading data symbols arranged in a two-dimensional information domain onto sets of grid points respectively associated with different users in a time-frequency domain. The spreading is performed using two-dimensional basis functions uniquely associated with positions on a lattice in the information domain corresponding to the data symbols. A modulated signal is then generated using the sets of transformed symbols. The sets of grid points associated with the different users may be interleaved within the time-frequency domain or may form non-interleaved windows.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: May 8, 2018
    Inventors: Ronny Hadani, Shlomo Selim Rakib
  • Patent number: 9955508
    Abstract: A method and apparatus for performing a random access procedure in a wireless communication system is provided. In one embodiment, a user equipment (UE) determines a required amount of repetitions for uplink transmissions during a random access procedure, and performs repetitions for uplink transmissions based on the determined required amount of repetitions for uplink transmissions. The uplink transmissions may include transmission of preambles which are grouped. In another embodiment, a UE configures a communication windows for lost-cost machine-type communication (MTC) UE, and performs a random access procedure through the configured communication window.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: April 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaewook Lee, Sungjun Park, Youngdae Lee, Sunghoon Jung
  • Patent number: 9894513
    Abstract: Embodiments are directed towards collecting information regarding the implementation of dynamic frequency selection and automatic channel selection by one or more wireless communication devices using the U-NII radio band. And to use the collected information to determine if other communication devices are coupled to communicate with each other via a wireless connection or a wired connection, or to modify the automatic channel selection mechanism used by one or more wireless communication devices.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: February 13, 2018
    Assignee: EchoStar Technologies L.L.C.
    Inventors: Francis Nafe, Christopher William Bruhn
  • Patent number: 9882757
    Abstract: A transmitter adapted for massive multiple-input multiple-output (M-MIMO) operation includes a first set of power amplifiers (PAs) that amplifies a first signal to produce an amplified first signal, and a second set of PAs that amplifies a second signal to produce an amplified second signal, wherein PAs in the first set of PAs are different from PAs in the second set of PAs. The transmitter includes an antenna array operatively coupled to the first set of PAs and the set of second PAs, the antenna array including a plurality of transmit antennas, wherein the antenna array transmits one or more of the amplified signals.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: January 30, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ming Jia, Jianglei Ma
  • Patent number: 9867100
    Abstract: A communication environment with carrier aggregation (CA) is disclosed in which a UE is configured for communication at a first time with a first network node via a primary component carrier (PCC) and a second network node via a secondary CC (SCC). At a second time, the UE is configured for communication with a third network node via the SCC at a second time. The UE maintains communication with the first network node via the PCC without triggering handover at the UE during the establishing communication with the third network node.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: January 9, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Durga Prasad Malladi, Yongbin Wei, Aleksandar Damnjanovic, Naga Bhushan
  • Patent number: 9866418
    Abstract: A computing device operating according to a frequency division multiplexed protocol in which communication occurs over a signal formed from a plurality of sub-channels selected from anywhere in a frequency spectrum. A computing device may select sub-channels cognitively by using information about sub-channels previously deemed suitable or unsuitable by that computing device or other computing devices. A described technique for determining sub-channel suitability includes analyzing radio frequency energy in the sub-channel to detect signals generated by another computing device or high noise levels. Information may also be used to cognitively select sub-channels to be analyzed, such as by first selecting for analysis previously-used sub-channels.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 9, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Amer A. Hassan, Christian Huitema
  • Patent number: 9860882
    Abstract: A method of operating an end node to communicate with a central node, the method comprising: wirelessly receiving, a beacon signal periodically-transmitted from the central node; each beacon signal denoting the start of a single frame; each frame being organized to include a downlink (DL) phase which precedes an uplink (UL) phase; and a payload of the beacon signal including an offset which represents a starting time of the UL phase. The method further comprises: generating a message; selecting, unbeknownst to the central node, at least one UL logical-channel, respectively; and wirelessly transmitting, during the UL phase, at least a portion of the message from the end node over the selected at least one UL logical-channel according to a slotted ALOHA technique.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: January 2, 2018
    Assignee: LINK LABS, INC.
    Inventors: Adrian Sapio, Richard Kevin Sawyer, Jr., Allen Parker Welkie, Ricardo Luna, Jr.