Patents by Inventor Chengchun FANG

Chengchun FANG 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).

  • In-vehicle device, recording medium, and keyless entry system
    Patent number: 10894527
    Abstract: An in-vehicle device includes a plurality of transmitting antennas, an in-vehicle device transmitter configured to transmit measurement signals via the plurality of respective transmitting antennas, an in-vehicle device receiver configured to receive, from a portable device, a measurement result signal that includes measurement data of received signal strengths of the respective measurement signals that have been transmitted from the plurality of respective transmitting antennas; and an in-vehicle device controller configured to calculate first distances from the portable device to a plurality of preset areas, based on differences between the received signal strengths of the respective measurement signals included in the measurement result signal, and to identify an area to which the portable device belongs from the plurality of preset areas based on the first distances.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: January 19, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yasuhiro Suzuki, Satoshi Hayasaka, Satoshi Nakajima, Chengchun Fang
  • IN-VEHICLE DEVICE, RECORDING MEDIUM, AND KEYLESS ENTRY SYSTEM
    Publication number: 20200017073
    Abstract: An in-vehicle device includes a plurality of transmitting antennas, an in-vehicle device transmitter configured to transmit measurement signals via the plurality of respective transmitting antennas, an in-vehicle device receiver configured to receive, from a portable device, a measurement result signal that includes measurement data of received signal strengths of the respective measurement signals that have been transmitted from the plurality of respective transmitting antennas; and an in-vehicle device controller configured to calculate first distances from the portable device to a plurality of preset areas, based on differences between the received signal strengths of the respective measurement signals included in the measurement result signal, and to identify an area to which the portable device belongs from the plurality of preset areas based on the first distances.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 16, 2020
    Inventors: Yasuhiro SUZUKI, Satoshi HAYASAKA, Satoshi NAKAJIMA, Chengchun FANG