Patents Examined by Lihong Yu
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Patent number: 12355525Abstract: The present invention relates to an image display device. An image display device according to an embodiment of the present invention comprises: a display; and a wireless transmission device which is spaced apart from the display and transmits image data to the display by a wireless communication method, wherein the wireless transmission device includes at least one antenna device for wirelessly transmitting image data to the display, and the wireless transmission device generates, for beamforming tracking of a beam output from the antenna device, a beamforming candidate list including some of a plurality of antenna-based indexes corresponding to a peripheral region around the antenna device, and when a difference in a signal-to-noise ratio or a metric difference between a first index and a second index adjacent to the first index among some of the plurality of antenna-based indexes is less than a beam gain, the wireless transmission device excludes the second index from the beamforming candidate list.Type: GrantFiled: June 10, 2021Date of Patent: July 8, 2025Assignee: LG ELECTRONICS INC.Inventors: Kyuin Lee, Jaewook Song, Sukhyon Yoon
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Patent number: 12328161Abstract: Provided are a method and device for feeding back a reference signal parameter, a user terminal and a base station. The method for feeding back a reference signal parameter includes: determining, by a terminal, at least one of a transmission parameter or a reception parameter of a reference signal; and feeding back, by the terminal, the at least one of the transmission parameter or the reception parameter of the reference signal to a base station.Type: GrantFiled: November 11, 2022Date of Patent: June 10, 2025Assignee: ZTE CorporationInventors: Yijian Chen, Zhaohua Lu, Yu Ngok Li, Chuangxin Jiang, Bo Gao
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Patent number: 12316360Abstract: A method of digital memoryless pre-distortion includes receiving an input digital signal from a signal source, calculating a look-up table (LUT) address from the input signal and a power scale, updating an LUT value associated with the LUT address based on the input signal and an output signal that is output from a power amplifier to a wireless communications channel, linearizing the output signal with the updated LUT value, and outputting the output signal to the wireless communications channel. The steps of updating an LUT value associated with the LUT address and linearizing the output signal with the updated LUT value are repeated until a level of linearization is achieved that meets a pre-defined standard.Type: GrantFiled: July 10, 2023Date of Patent: May 27, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Fei Tong, Paul Nicholas Fletcher
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Patent number: 12278684Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station via a reconfigurable surface, a set of reference signals reflected by the reconfigurable surface using a set of precoder configurations. In some aspects, the set of reference signals are transmitted within a set of reference signal occasions of a sweep procedure associated with configuring the reconfigurable surface with different precoder configurations of the set of precoder configurations for reflecting signals. The UE may additionally transmit, to the base station via the reconfigurable surface, a feedback message including an indication of at least one precoder configuration of the set of precoder configurations based on receiving the set of reference signals. The UE may then receive, from the base station via the reconfigurable surface, a downlink transmission based on transmitting the feedback message.Type: GrantFiled: February 25, 2021Date of Patent: April 15, 2025Assignee: QUALCOMM IncorporatedInventors: Hwan Joon Kwon, Saeid Sahraei, Hung Dinh Ly, Yu Zhang, Krishna Kiran Mukkavilli
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Patent number: 12278700Abstract: A method of transmitting data from a transmitting terminal to a receiving terminal over a channel is provided in which a series of locations for each of the receiving terminals is determined. The method further includes the steps of determining a link geometry of the channel between the transmitting terminal and the receiving terminal for each location in the series of locations, wherein determining the link geometry comprises determining a distance between the transmitting and receiving terminals for each location in the series of locations; determining channel impairments for the link geometries; predicting signal-to-noise ratios (SNRs) of the channel for the link geometries and the channel impairments; storing channel parameters based on the predicted SNRs in a lookup table; retrieving the channel parameters from the lookup table using the distance between the transmitting and receiving terminals; and transmitting data from the transmitting terminal using the channel parameters.Type: GrantFiled: April 27, 2023Date of Patent: April 15, 2025Assignee: Northrop Grumman Systems CorporationInventors: James M. Hetrick, Erin Yvonne Elissa Stewart Meadows
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Patent number: 12273140Abstract: An electronic device according to an embodiment of the disclosure may receive an advertising frame transmitted by an external electronic device through the communication circuit through ultra-wideband (UWB) communication, may receive at least one frame among the advertising frames in a first decision period, may determine whether the number of times an angle based on the at least one frame received in the first decision period is within a specified angle range satisfies a specified condition, and may determine whether the electronic device points to the external electronic device according to whether the specified condition is satisfied.Type: GrantFiled: January 23, 2023Date of Patent: April 8, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyunchul Kim, Moonseok Kang, Yi Yang, Jonghoon Jang
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Patent number: 12273151Abstract: A method of over-the-air beamforming calibration is disclosed for a multi-antenna transceiver having a first plurality of antenna elements connected to respective transceiver chains. Beamforming calibration comprises determining respective beamforming calibration factors for the transceiver chains of the antenna elements of the first plurality. The method comprises determining a second plurality of measurement resources for calibration sounding, wherein the second plurality is smaller than the first plurality. The method also comprises (for each measurement resource of the second plurality) selecting one or more antenna elements of the first plurality for sounding signal transmission, wherein each antenna element of the first plurality is selected for one or more of the measurement resources of the second plurality. The method also comprises (using each measurement resource of the second plurality) overlappingly transmitting respective sounding signals by the selected one or more antenna elements.Type: GrantFiled: April 23, 2020Date of Patent: April 8, 2025Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Joao Vieira, Johan Nilsson, Magnus Åström
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Patent number: 12273170Abstract: Various embodiments of the present disclosure provide a method for beamforming. The method which may be at a network node and includes: obtaining channel information of a terminal device; determining a self-correlation factor of the terminal device according to the channel information; determining main lobe width according to a relationship between self-correlation factor and main lobe width; determining a weight vector on at least one transmitting antenna according to the determined main lobe width; and transmitting a message using the weight vector on the at least one transmitting antenna, to the terminal device.Type: GrantFiled: December 18, 2020Date of Patent: April 8, 2025Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Yue Huang, Jiying Xu, Hao Zhang, Huaisong Zhu
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Patent number: 12267140Abstract: Beamforming methods and systems include determining a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station. A set of scanning beams is selected based on the tradeoff curve. Devices around the base station are scanned for using the set of scanning beams. A set of transmission beams is selected for communications with the devices based on information received during the scanning. The set of transmission beams are used for transmission with a beamforming transmitter.Type: GrantFiled: May 3, 2023Date of Patent: April 1, 2025Assignee: NEC CorporationInventors: Mohammad Khojastepour, Nariman Torkzaban
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Patent number: 12261658Abstract: One example method includes receiving inputs (1) specifying a total power amount for the communication system, (2) specifying communication system operational parameters, and (3) specifying a number of elements implemented in the IRS. Based on the inputs, a portion of the total power amount needed to switch an element of the IRS from a passive element to an active element, an amplification amount of the element, and the SNR of the wireless signal received at the receiver when the first element is an active element are calculated for all combinations of elements of the IRS. Based on the calculations, a number of elements implemented in the IRS are selected to switch from passive elements to active elements that will result in a maximum SNR of the wireless signal received at the receiver.Type: GrantFiled: May 1, 2023Date of Patent: March 25, 2025Assignee: Dell Products L.P.Inventors: Tejinder Singh, Davi V. Q. Rodrigues
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Patent number: 12261654Abstract: Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line.Type: GrantFiled: September 20, 2023Date of Patent: March 25, 2025Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Il Han Kim, Tarkesh Pande, Anuj Batra
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Patent number: 12250014Abstract: Many embodiments provide a frequency comb receiver that includes a PIN diode, a THz pulse generator block that generates THz tones (LO) for coherent frequency comb detection, an on-chip antenna for broadband detection and a driver stage switched by a series of buffers, where a repetition rate of the LO tones are tunable over a range and determines a spacing between two adjacent tones in the corresponding frequency comb.Type: GrantFiled: June 26, 2020Date of Patent: March 11, 2025Assignee: The Regents of the University of CaliforniaInventors: Aydin Babakhani, Seyedmohammadreza Razavian
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Patent number: 12250042Abstract: Apparatuses, methods, and systems are disclosed for preparing CSI. One apparatus includes a processor and a memory with instructions executable by the processor to cause the apparatus to determine a total number of non-zero coefficients associated with a CSI codebook over a set of transmission layers and encode an indication of the total number of non-zero coefficients by selecting a codeword from a plurality of candidate codewords in which the selected codeword identifies the total number of non-zero coefficients. The instructions are executable by the processor to prepare CSI based on the CSI codebook and to transmit the CSI to a base station unit, where the CSI codebook includes a plurality of precoding matrices, and where the CSI includes the selected codeword.Type: GrantFiled: March 17, 2023Date of Patent: March 11, 2025Assignee: Motorola Mobility LLCInventors: Udar Mittal, Tyler Brown, Khalid Zeineddine, Jiho Song
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Patent number: 12237963Abstract: Certain aspects of the present disclosure provide techniques for wireless communication for a network entity, comprising transmitting signaling indicating a synchronization signal block (SSB) pattern that identifies SSB slots for sweeping a set of SSB beams over one or more SSB bursts with configurable gaps between at least some of the SSB slots, and transmitting SSBs in accordance with the pattern.Type: GrantFiled: September 29, 2022Date of Patent: February 25, 2025Assignee: QUALCOMM IncorporatedInventors: Iyab Issam Sakhnini, Tao Luo, Jing Sun, Xiaoxia Zhang
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Patent number: 12191976Abstract: This disclosure provides a beam information indication method and an apparatus. The terminal device obtains reference domain information of a plurality of beams and a first offset corresponding to each moment, to update beam domain information, where the first offset indicates an offset of domain information of the plurality of beams relative to the reference domain information of the plurality of beams. In technical solutions provided in this disclosure, domain information of the plurality of beams can be updated with low signaling overheads. The technical solutions may be applied to a satellite communication system, to implement interference management of satellite beams.Type: GrantFiled: January 23, 2023Date of Patent: January 7, 2025Assignee: Huawei Technologies Co., Ltd.Inventors: Yu Wang, Yunfei Qiao, Xueliang Shi, Hejia Luo, Rong Li, Jun Wang
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Patent number: 12184384Abstract: Method comprising: ?selecting a subset of one or more beam pairs among a set of beam pairs via which a terminal and a base station are associated, wherein for each of the beam pairs of the subset, a suitability of the respective beam pair is better than a suitability threshold; for each of the beam pairs of the subset: ??determining a respective set of at least two tones; ??performing a respective relative phase measurement based on the respective virtual wavelength to obtain a respective virtual phase difference; and at least one of ??reporting the respective set of at least two tones and the respective virtual phase difference to the base station; and ??estimating a respective distance between the terminal and a transmission reception point of the base station emitting the respective beam pair based on the respective virtual phase difference and the preliminary uncertainty region.Type: GrantFiled: January 21, 2021Date of Patent: December 31, 2024Assignee: NOKIA TECHNOLOGIES OYInventors: Onel Alcaraz López, Carlos Morais De Lima, Antti Tölli, Juha Pekka Karjalainen, Sami-Jukka Hakola, Timo Koskela, Jari Yrjänä Hulkkonen
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Patent number: 12184455Abstract: A method for adapting a continuous time equalizer (CTE) includes determining a gain of a discrete time equalizer (DTE) and determining whether the gain has increased or decreased by more than the threshold amount. Responsive to determining that the gain has increased or decreased by more than the threshold amount, the method includes sequentially configuring the CTE for multiple CTE settings such that gain of the CTE is caused to increase or decrease in a same direction with the change in gain of the DTE. The method also includes determining a separate figure of merit (FOM) for each of the multiple CTE settings and selecting a new CTE setting from the multiple CTE settings based on the FOM for each of the multiple CTE settings.Type: GrantFiled: October 26, 2022Date of Patent: December 31, 2024Assignee: Texas Instruments IncorporatedInventors: Aravind Ganesan, Ajai Paulose, Ankush G. P.
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Patent number: 12176930Abstract: Techniques to dynamically adjust the corner frequency of a high-pass filter in response to a time-domain amplitude value of an output signal, thereby preserving accuracy while promptly recovering the signal's baseline value. A system can be configured to filter frequency-domain values of an input signal based on a filtering characteristic. The filtering characteristic can be set dynamically in response to a time-domain value of an amplitude of an output signal. The filtering characteristic can comprise a corner frequency, and the system can include a high-pass filter configured to filter out frequency components at frequencies lower than the corner frequency. The system is configured to dynamically change the corner frequency from a first value to a second value, in response to the time-domain value of the amplitude crossing a threshold value. The system may dynamically change the corner frequency within a time interval after the crossing.Type: GrantFiled: July 26, 2022Date of Patent: December 24, 2024Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: James H. Steenson, Jr., Joseph P. Cullen
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Patent number: 12170587Abstract: A transmitting apparatus according to one aspect of the present disclosure transmits a plurality of first transmission data and a plurality of second transmission data by using an OFDM (Orthogonal Frequency-Division Multiplexing) method. The transmitting apparatus includes frame configuring circuitry, which in operation, generates a frame including a first period in which a preamble is transmitted, a second period in which the plurality of first transmission data is multiplexed by a time division multiplexing method and is transmitted, and a third period in which the plurality of second transmission data is multiplexed by a frequency division multiplexing method and is transmitted; and transmitting circuitry that transmits the frame.Type: GrantFiled: April 3, 2023Date of Patent: December 17, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
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Patent number: 12155390Abstract: A clock recovery circuit comprises an input node receiving a data signal having a data rate, and a digital oscillator producing a local clock signal with a frequency higher than the data rate. A counter clocked by the local clock signal has its count value sampled and reset at the rising and falling edges of the data signal, and a storage block coupled to the counter stores a count value that is updated in response to the current sampled count value of the counter lying in an update range between lower and upper bounds. A threshold value set is produced as a function of the updated count value stored in the storage block. Sampling circuitry receives and samples the data signal, and provides a sampled version of the data signal in response to the count value of the counter reaching any of the threshold values.Type: GrantFiled: October 17, 2022Date of Patent: November 26, 2024Assignee: STMicroelectronics S.r.l.Inventor: David Vincenzoni