Patents by Inventor Katsuyuki Ohguchi

Katsuyuki Ohguchi 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).

  • Radar device
    Patent number: 11069987
    Abstract: A radar device includes: reception array antennas each including virtual antennas constructed from plural transmission antennas and plural reception antennas; and a transmission control unit which controls transmission waves transmitted from the transmission antennas, the plural transmission antennas include: a first transmission antenna group having at least two of the transmission antennas that are spaced from each other by a prescribed first interval; and a second transmission antenna group having at least one of the transmission antenna that is spaced, by a prescribed second interval, from a synthesized antenna that is the first transmission antenna group as regarded as a single antenna; and the transmission control unit is capable of switching between: a first mode and a second mode as defined herein.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 20, 2021
    Assignee: DENSO TEN Limited
    Inventor: Katsuyuki Ohguchi
  • RADAR DEVICE
    Publication number: 20190379137
    Abstract: A radar device includes: reception array antennas each including virtual antennas constructed from plural transmission antennas and plural reception antennas; and a transmission control unit which controls transmission waves transmitted from the transmission antennas, the plural transmission antennas include: a first transmission antenna group having at least two of the transmission antennas that are spaced from each other by a prescribed first interval; and a second transmission antenna group having at least one of the transmission antenna that is spaced, by a prescribed second interval, from a synthesized antenna that is the first transmission antenna group as regarded as a single antenna; and the transmission control unit is capable of switching between: a first mode and a second mode as defined herein.
    Type: Application
    Filed: March 15, 2019
    Publication date: December 12, 2019
    Applicant: DENSO TEN Limited
    Inventor: Katsuyuki OHGUCHI
  • Detection and ranging appartus and detection and ranging method
    Patent number: 7859450
    Abstract: In a detection and ranging apparatus that performs direction-of-arrival estimation using a sensor array and that enlarges an effective aperture using a plurality of transmitting sensors, adverse effects associated with time division switching are eliminated, achieving high-accuracy measurement. A transmitter wave is spread in modulators by using mutually orthogonal codes, and the resulting transmitter waves are radiated from two transmitting sensors. Signals received by receiving sensors are each split by a splitter into two parts, which are then respectively despread in a demodulator by using the same codes as those used in the transmitter.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: December 28, 2010
    Assignees: Fujitsu Limited, Fujitsu Ten Limited
    Inventors: Kazuo Shirakawa, Katsuyuki Ohguchi, Yasuyuki Kondo
  • DETECTION AND RANGING APPARTUS AND DETECTION AND RANGING METHOD
    Publication number: 20090079617
    Abstract: In a detection and ranging apparatus that performs direction-of-arrival estimation using a sensor array and that enlarges an effective aperture using a plurality of transmitting sensors, adverse effects associated with time division switching are eliminated, achieving high-accuracy measurement. A transmitter wave is spread in modulators by using mutually orthogonal codes, and the resulting transmitter waves are radiated from two transmitting sensors. Signals received by receiving sensors are each split by a splitter into two parts, which are then respectively despread in a demodulator by using the same codes as those used in the transmitter.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 26, 2009
    Applicants: FUJITSU LIMITED, FUJITSU TEN LIMITED
    Inventors: Kazuo SHIRAKAWA, Katsuyuki OHGUCHI, Yasuyuki KONDO