Patents by Inventor Yoshiteru Shoji

Yoshiteru Shoji 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).

  • System for detecting positional information
    Patent number: 6134448
    Abstract: A mobile terminal has a simple construction in a mobile communication system of a small-zone system. The mobile terminal 1 transmits base station identification information transmitted from base stations 2a through 2d and information of the intensity of electric field of received radio wave from the base station to a position managing station, while the position managing station specifies the current position of the mobile terminal, based on the above-mentioned information by means of a relational expression of the intensity of electric field and a distance between a point of transmission and reception and a database of the base station. With the simple construction of the mobile terminal 1, the current position of the mobile terminal 1 can be specified with higher accuracy.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: October 17, 2000
    Assignees: Matushita Electric Industrial Co., Ltd, Locus Corp.
    Inventors: Yoshiteru Shoji, Hiroaki Koshima, Yoshitaka Ohta