Patents by Inventor Ryoichi Ogishima

Ryoichi Ogishima 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).

  • Patent number: 7729851
    Abstract: A navigation system comprises: a GPS for detecting a current position; a DVD drive for reading a map from a DVD on which a plurality of partially overlapping maps are recorded; a Memory card for storing information to identify a portion overlapping with another map, in a map being used for navigation; and a CPU for judging, based on coordinates of a current position and the information stored in the Memory card, whether the coordinates of the current position are contained in the overlapping portion or not, and for controlling, in response to a judgment that the coordinates of the current position are contained in the overlapping portion, the DVD drive to read from the DVD the map sharing the overlapping portion. Consequently, map data to be loaded can be smoothly changed according to the current position.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: June 1, 2010
    Assignee: Panasonic Corporation
    Inventors: Atsushi Yamashita, Ryoichi Ogishima
  • Publication number: 20070225905
    Abstract: A navigation system comprises: a GPS for detecting a current position; a DVD drive for reading a map from a DVD on which a plurality of partially overlapping maps are recorded; a Memory card for storing information to identify a portion overlapping with another map, in a map being used for navigation; and a CPU for judging, based on coordinates of a current position and the information stored in the Memory card, whether the coordinates of the current position are contained in the overlapping portion or not, and for controlling, in response to a judgment that the coordinates of the current position are contained in the overlapping portion, the DVD drive to read from the DVD the map sharing the overlapping portion. Consequently, map data to be loaded can be smoothly changed according to the current position.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 27, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Atsushi Yamashita, Ryoichi Ogishima