Patents by Inventor Masaharu Hanasaki

Masaharu Hanasaki 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).

  • Navigation system for vehicles including present position calculating means
    Patent number: 5890092
    Abstract: In order to calculate the traveling distance and heading of a vehicle in highly accurate fashion, a navigation system is provided with a distance sensor for outputting pulses in proportion to rotation of a wheel, a GPS receiving unit for calculating vehicle speed by GPS reception, acquisition unit for acquiring the number of pulses at the same time as GPS reception, distance correction coefficient calculating unit for calculating GPS traveling distance from the GPS-reception vehicle speed and a time difference between any two points, and calculating a distance correction coefficient from the GPS traveling distance and a pulse difference between two points, and present position calculating unit for calculating present position based upon a corrected distance correction coefficient.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: March 30, 1999
    Assignee: Aisin AW Co., Ltd.
    Inventors: Shinichi Kato, Mitsuhiro Nimura, Masaharu Hanasaki, Akimasa Nanba
  • Navigation system for vehicles including present position calculating means
    Patent number: 5796613
    Abstract: In order to calculate the traveling distance and heading of a vehicle in highly accurate fashion, a navigation system is provided with a distance sensor for outputting pulses in proportion to rotation of a wheel, a GPS receiving unit for calculating vehicle speed by GPS reception, acquisition unit for acquiring the number of pulses at the same time as GPS reception, distance correction coefficient calculating unit for calculating GPS traveling distance from the GPS-reception vehicle speed and a time difference between any two points, and calculating a distance correction coefficient from the GPS traveling distance and a pulse difference between two points, and present position calculating unit for calculating present position based upon a corrected distance correction coefficient.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: August 18, 1998
    Assignee: Aisin AW Co., Ltd.
    Inventors: Shinichi Kato, Mitsuhiro Nimura, Masaharu Hanasaki, Akimasa Nanba