Patents by Inventor Kazuyoshi Nomiya

Kazuyoshi Nomiya 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).

  • Coordinate inputting apparatus with shared line combinations of power, position and switch signals
    Patent number: 5736980
    Abstract: A coordinate inputting apparatus has a separating circuit, a cable and a position indicating pen. The separating circuit has a low pass filter for removing an alternating current component from a signal transmitted to a signal line and a band pass filter for passing only a position information signal in a predetermined frequency band with respect to the signal transmitted to the signal line. The cable is constructed by a signal line, a switching signal line and a ground line. The signal line is used to supply power to the position indicating pen and transmit a detecting signal from the position indicating pen to each of an X-coordinate detecting circuit and a Y-coordinate detecting circuit. The position indicating pen has a low pass filter for removing an alternating current component from a signal transmitted through the signal line and a band pass filter for passing only a position information signal in a predetermined frequency band.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: April 7, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shigeki Iguchi, Katsumi Hirano, Tomohiko Nishimura, Kunio Hiromoto, Kazuyoshi Nomiya