Patents by Inventor Masayuki Hosoi

Masayuki Hosoi 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).

  • Vehicle bearing detection and data processing methods applicable to vehicle navigation system
    Patent number: 4890233
    Abstract: The invention provides various methods for detecting the bearing of a moving vehicle and of processing data in a vehicular navigation system. Provided there is carried out a process of recognizing the present position of the vehicle while the vehicle is moving at a predetermined speed, bearing data obtained from a prestored map is utilized to determine the present position of the vehicle. At that time, the data output from a terrestrial magnetism sensor, which would otherwise be used, is discarded.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: December 26, 1989
    Assignee: Pioneer Electronic Corporation
    Inventors: Hitoshi Ando, Takashi Kashiwazaki, Masayuki Hosoi, Atsuhiko Fukushima
  • Method and apparatus for processing data in a GPS receiving device in a road vehicle
    Patent number: 4837700
    Abstract: A method for processing data received by a receiving device which outputs present location data for a movable vehicle based on the Global Positioning System and is positioned in the vehicle, including the steps of calculating an average of a predetermined number of data output from the receiving device while the vehicle stops, determining the average to be an effective data if the standard deviation of the data is within a predetermined range, and processing the averaged data as the present location data for the vehicle.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: June 6, 1989
    Assignee: Pioneer Electronic Corporation
    Inventors: Hitoshi Ando, Takashi Kashiwazaki, Masayuki Hosoi, Atsuhiko Fukushima
  • Method of processing output data from geomagnetic sensor
    Patent number: 4831563
    Abstract: A geomagnetic sensor used for vehicle-mount navigational apparatus outputs data indicative of the vehicle's direction. If the output data from the geomagnetic sensor is out of a predetermined range, the data is replaced by predetermined data or corrected on the basis of the predetermined data.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: May 16, 1989
    Assignee: Pioneer Electronic Corporation
    Inventors: Hitoshi Ando, Takashi Kashiwazaki, Masayuki Hosoi
  • Method of displaying a map
    Patent number: 4807157
    Abstract: A method for displaying a map, including steps of evaluating a start dot and an end dot of each segment defining a boundary of a predetermined area on the map, storing sequentially each of the evaluated data so that each of the segments has a lateral deflection with respect to the predetermined area, determining the lateral deflection of the predetermined area according to the evaluated data for the start and end dots of the segment when the predetermined area is painted on a display unit, calculating a start point for painting positioned inward of the segment and each of the evaluated data, and painting the predetermined area with a predetermined color from the start point.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: February 21, 1989
    Assignee: Pioneer Electronic Corporation
    Inventors: Atsuhiko Fukushima, Takashi Kashiwazaki, Masayuki Hosoi, Hitoshi Ando