Patents by Inventor Jinnan Liu

Jinnan Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250201471
    Abstract: A magnetic device provided includes a magnetic core, a middle column, windings, metal terminals, a magnetic cover, and adhesive layers. Side boards are connected at two ends of the middle column, a functional groove is defined in the side board. Both ends of each winding provides with winding terminals. The metal terminals are disposed on one side of each side boards. Each two of the metal terminals at different side boards are opposite to each other, the winding terminal is electrically connected to a welding part of each metal terminal through the functional groove. The magnetic cover is connected to the magnetic core and together with the magnetic core to form a closed magnetic circuit. Each adhesive layer is arranged between each two of the side boards, the metal terminals and the magnetic cover; and the magnetic cover and the metal terminals are bonded and fixed on the magnetic core.
    Type: Application
    Filed: May 24, 2024
    Publication date: June 19, 2025
    Applicant: Shenzhen Sunlord Automotive Electronics Co., Ltd.
    Inventors: Jingxin Huang, Jiang Li, Jinnan Liu, Yaoguang Li, Jianfeng Liu, Zhiying He, Yinchuan Li, Jijie Zhao, Yingxin Wang, Guiqiang Zhu, Andong Liu, Shaohui Zheng
  • Patent number: 12320918
    Abstract: A radar system includes a transmitter configured to transmit a radar signal; and a receiver configured to receive an echo signal obtained after the radar signal is reflected by a target, where a transmit antenna array of the transmitter and a receive antenna array of the receiver are used to form a virtual linear array and a virtual planar array, the virtual linear array includes a uniform linear array in a first direction, the virtual planar array includes a uniform planar array, and a first spacing between two adjacent array elements in the uniform linear array is less than a second spacing between two adjacent array elements in the first direction in the uniform planar array.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: June 3, 2025
    Assignee: SHENZHEN YINWANG INTELLIGENT TECHNOLOGIES CO., LTD.
    Inventors: Dapeng Lao, Jinnan Liu, Ben Wang, Mu Zhou
  • Patent number: 12313768
    Abstract: This disclosure provides a signal processing method and apparatus. The method includes: obtaining Nr1×M1 signals, where the Nr1×M1 signals are echo signals of M1 signals that are sent by a radar to a target in a SIMO mode; obtaining Nt×Nr2×M2 signals, where the Nt×Nr2×M2 signals are echo signals of M2 signals that are sent by the radar to the target in a MIMO mode; performing first signal processing on the Nr1×M1 signals to obtain first processing data, where the first signal processing includes sequentially performing range FFT analysis, linear prediction, and Doppler FFT analysis; performing second signal processing on the Nt×Nr2×M2 signals to obtain second processing data, where the second signal processing includes range FFT analysis and Doppler FFT analysis; and performing velocity matching ambiguity resolution processing based on the first processing data and the second processing data.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: May 27, 2025
    Assignee: Shenzhen Yinwang Intelligent Technologies Co., Ltd.
    Inventors: Jintai Zhu, Dapeng Lao, Dejian Li, Jinnan Liu, Ben Wang
  • Patent number: 12253624
    Abstract: A signal transmission method applied to a multiple-input multiple-output (MIMO) radar, the MIMO radar includes a transmitter, and the transmitter includes a plurality of transmit antennas. The signal transmission method includes sending, by the transmitter, a first burst in a first measurement frame, where the first measurement frame is used to measure a velocity of a target, and when the first burst is sent, each of the plurality of transmit antennas sends a chirp signal in a time division manner, and sending, by the transmitter, a second burst in the first measurement frame after the transmitter sends the first burst in the first measurement frame, where when the second burst is sent, a quantity of transmit antennas configured to send a chirp signal is one.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: March 18, 2025
    Assignee: SHENZHEN YINWANG INTELLIGENT TECHNOLOGIES CO., LTD.
    Inventors: Jinnan Liu, Mu Zhou, Dapeng Lao
  • Patent number: 12111387
    Abstract: Embodiments of this application disclose a signal processing method, a radar system, and a vehicle. The method is applied to a radar system including an array antenna. The method includes: sequentially transmitting signals according to a first transmission sequence through M transmit antennas, where the first transmission sequence is different from a sequence that is formed by arranging the M transmit antennas based on spatial locations; receiving, through N receive antennas, echo signals that are formed after a target reflects the transmitted signals, where M and N are positive integers, and M is greater than 2; and measuring a parameter of the target based on the echo signals. According to the embodiments of this application, correlation between space and a Doppler phase shift is reduced by changing a switching order of transmit antennas.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: October 8, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mu Zhou, Jinnan Liu, Chen Yang
  • Patent number: 11855723
    Abstract: A beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information instructs the second device to not perform an initiator sector sweep (ISS), sending, by the first device, a sector sweep frame of a responder sector sweep (RSS) to the second device, and receiving, by the first device, feedback information obtained by the second device during the RSS.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: December 26, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dejian Li, Jinnan Liu
  • Publication number: 20230184886
    Abstract: This disclosure provides a signal processing method and apparatus. The method includes: obtaining Nr1×M1 signals, where the Nr1×M1 signals are echo signals of M1 signals that are sent by a radar to a target in a SIMO mode; obtaining Nt×Nr2×M2 signals, where the Nt×Nr2×M2 signals are echo signals of M2 signals that are sent by the radar to the target in a MIMO mode; performing first signal processing on the Nr1×M1 signals to obtain first processing data, where the first signal processing includes sequentially performing range FFT analysis, linear prediction, and Doppler FFT analysis; performing second signal processing on the Nt×Nr2×M2 signals to obtain second processing data, where the second signal processing includes range FFT analysis and Doppler FFT analysis; and performing velocity matching ambiguity resolution processing based on the first processing data and the second processing data.
    Type: Application
    Filed: February 3, 2023
    Publication date: June 15, 2023
    Inventors: Jintai Zhu, Dapeng Lao, Dejian Li, Jinnan Liu, Ben Wang
  • Publication number: 20230092131
    Abstract: A radar signal transmitting method, a radar signal receiving method, and an apparatus are applied to a radar apparatus. The radar signal transmitting method includes: sending a first signal and a second signal in S slots, where a phase of the first signal remains unchanged in the S slots, and the first signal may be equivalent to a SIMO signal; and sending the second signal in at least one of a time division manner or a code division manner, where phase modulation is performed, by using a step of 2?ky/P, on a signal that is in the second signal and that is sent through each of m transmit antennas, and the second signal is equivalent to a MIMO signal. When P=2, the MIMO signal is sent in a time division manner. When P>2, the MIMO signal is sent in a time division manner and a code division manner.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Inventors: Dapeng Lao, Jinnan Liu, Rongjiang Liu, Chen Yang, Jintai Zhu, Dejian Li
  • Patent number: 11388029
    Abstract: A training packet sending method and apparatus, where the method includes generating, by a first device, a training packet, where the training packet includes a preamble, a header, and a training field, and the header includes at least a legacy header, and repeatedly sending, by the first device, the preamble using N channels, sending the legacy header in the header using the N channels, and sending the training field to at least one second device using H channels of the N channels, where N is greater than 1, and H is greater than 1 and less than or equal to N.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: July 12, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jinnan Liu, Dejian Li, Jiamin Chen, Yongping Zhang
  • Publication number: 20220171021
    Abstract: A signal transmission method and apparatus, a signal processing method and apparatus, and a radar system are provided. The signal transmission method is applied to a multiple input multiple output MIMO radar, the MIMO radar includes a transmitter, and the transmitter includes a plurality of transmit antennas. The signal transmission method includes: sending, by the transmitter, a first burst in a first measurement frame, where the first measurement frame is used to measure a velocity of a target, and when the first burst is sent, each of the plurality of transmit antennas sends a chirp signal in a time division manner; and sending, by the transmitter, a second burst in the first measurement frame after the transmitter sends the first burst in the first measurement frame, where when the second burst is sent, a quantity of transmit antennas configured to send a chirp signal is one.
    Type: Application
    Filed: February 18, 2022
    Publication date: June 2, 2022
    Inventors: Jinnan Liu, Mu Zhou, Dapeng Lao
  • Publication number: 20220171050
    Abstract: A signal transmission method and apparatus, a signal processing method and apparatus, and a radar system are provided, so that a MIMO radar can accurately resume a velocity measurement of a target to a velocity measurement range of a SIMO radar. The signal transmission method is applied to a multiple input multiple output (MIMO) radar. A transmitter in the MIMO radar sends a measurement frame used to measure a velocity of a target. The measurement frame includes a first burst. In the first burst, each low-density transmit antenna sends one chirp signal in each timeslot, and at least one high-density transmit antenna sends more chirp signals in additional timeslots.
    Type: Application
    Filed: February 18, 2022
    Publication date: June 2, 2022
    Inventors: Jinnan LIU, Mu ZHOU, Dapeng LAO, Chen YANG
  • Publication number: 20220146623
    Abstract: A radar system (400) and a vehicle are provided, so that when high angular resolution is obtained, a quantity of transmit antennas and a quantity of receive antennas are reduced, to reduce design and processing difficulty. The radar system (400) includes: a transmitter (401), configured to transmit a radar signal; and a receiver (402), configured to receive an echo signal obtained after the radar signal is reflected by a target, where a transmit antenna array of the transmitter (401) and a receive antenna array of the receiver (402) are used to form a virtual linear array and a virtual planar array, the virtual linear array includes a uniform linear array in a first direction, the virtual planar array includes a uniform planar array, and a first spacing between two adjacent array elements in the uniform linear array is less than a second spacing between two adjacent array elements in the first direction in the uniform planar array.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Dapeng Lao, Jinnan Liu, Ben Wang, Mu Zhou
  • Publication number: 20220107390
    Abstract: A radar system includes a first radar sensor comprising a data combination system and a plurality of radar monolithic chips, wherein each radar monolithic chip includes a first radio frequency front end and a first microprocessor. The first microprocessor is configured to preprocess echo data obtained by the first radio frequency front end. The data combination system is configured to combine and transmit the preprocessed echo data, wherein a processor performs post-processing on the preprocessed echo data to generate point cloud data of the radar system.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Inventors: Chen Yang, Jinnan Liu, Jiamin Chen, Pei Liu
  • Patent number: 11259308
    Abstract: This application provides a signal processing method and apparatus. A network device obtains capability information of a terminal device, where the capability information includes a processing time period for uplink data of the terminal device and a processing time period for uplink control information of the terminal device; determines a first time-frequency resource based on the capability information, where the first time-frequency resource is used to carry first uplink data and/or first uplink control information; and sends first signaling to the terminal device, where the first signaling indicates the first time-frequency resource. This application can improve efficiency of configuring a time-frequency resource by the network device for the first uplink data and/or the first uplink control information of the terminal device, thereby reducing a signal transmission delay.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 22, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shulan Feng, Xiuyong Shen, Jinnan Liu, Xingwei Zhang, Junren Chang
  • Publication number: 20220035019
    Abstract: Embodiments of this application disclose a signal processing method, a radar system, and a vehicle. The method is applied to a radar system including an array antenna. The method includes: sequentially transmitting signals according to a first transmission sequence through M transmit antennas, where the first transmission sequence is different from a sequence that is formed by arranging the M transmit antennas based on spatial locations; receiving, through N receive antennas, echo signals that are formed after a target reflects the transmitted signals, where M and N are positive integers, and M is greater than 2; and measuring a parameter of the target based on the echo signals. According to the embodiments of this application, correlation between space and a Doppler phase shift is reduced by changing a switching order of transmit antennas.
    Type: Application
    Filed: June 11, 2021
    Publication date: February 3, 2022
    Inventors: Mu ZHOU, Jinnan LIU, Chen YANG
  • Patent number: 11239892
    Abstract: A sector level sweep method and apparatus are provided. A local end generates a first sector sweep packet at the local end sector sweep stage, and the local end sends the first sector sweep packet to a peer end by using a first beam. A quantity of bytes of the first sector sweep packet is not greater than 27, the first sector sweep packet includes beam indication information of the first beam, the beam indication information includes antenna identification information of the beam, and a maximum quantity of antennas indicated by the antenna identification information is at least 8.
    Type: Grant
    Filed: November 15, 2020
    Date of Patent: February 1, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jinnan Liu, Dejian Li
  • Publication number: 20210409084
    Abstract: A beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information instructs the second device to not perform an initiator sector sweep (ISS), sending, by the first device, a sector sweep frame of a responder sector sweep (RSS) to the second device, and receiving, by the first device, feedback information obtained by the second device during the RSS.
    Type: Application
    Filed: July 14, 2021
    Publication date: December 30, 2021
    Inventors: Dejian Li, Jinnan Liu
  • Patent number: 11088743
    Abstract: A beamforming training method and apparatus relating to the field of beamforming training technologies, where the beamforming training method includes sending, by a first device, first indication information to a second device, where the first indication information indicates the second device not to perform an initiator sector sweep (ISS), sending, by the first device, a sector sweep frame of a responder sector sweep (RSS) to the second device, and receiving, by the first device, feedback information obtained by the second device during the RSS. Hence, beamforming training flexibility can be improved.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: August 10, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dejian Li, Jinnan Liu
  • Patent number: 11075677
    Abstract: Example methods and devices for sending a beam refinement protocol packet are provided in this application, which support a transmission format of multi-channel transmission and multi-antenna transmission. One example method for sending a beam refinement protocol packet includes determining a transmission format of a beam training (TRN) subfield by a first device based on first information. The first information includes information indicating a quantity of transmit chains used for transmitting the TRN subfield on each channel and information indicating a channel aggregation mode. The first device sends a beam refinement protocol packet to a second device on a transmit chain based on the transmission format, where the beam refinement protocol packet includes a data field and a TRN field, and the TRN field includes a plurality of TRN subfields.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: July 27, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jinnan Liu, Dejian Li
  • Patent number: 11070263
    Abstract: This application provides example beamforming (BF) training methods, receiving devices, and sending devices. One example method includes performing BF training on at least one channel with a first device based on BF training request information, where the BF training request information includes antenna configuration information of the BF training and channel configuration information of the at least one channel. First feedback information sent by the first device is received, where the first feedback information includes a measurement result of the BF training, information about an antenna corresponding to the measurement result, beam information of the antenna, and channel information corresponding to the antenna. At least one of an optimal antenna configuration or digital domain BF precoding information on the at least one channel is determined based on the first feedback information.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: July 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dejian Li, Jinnan Liu