Patents by Inventor Tomohiko Tsumura

Tomohiko Tsumura 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).

  • Elevator display system using composite images to display car position
    Patent number: 5485897
    Abstract: An elevator sysem having an elevator operation control unit 2 for controlling the upward or downward movement of an elevator car 6 and an image display unit 5 provided inside the car. The system comprises an image reproduction unit 1 for feeding a main image signal for forming a background image to the image display unit 5, a superimposition image production circuit 3 for producing a subimage signal for forming a floor indicating image based on a floor signal from the control unit 3, and an image composition unit 4 for combining the main image signal and the subimage signal into a composite image signal to superimpose the floor indicating image on the background image and feeding the composite image signal to the display unit 5.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: January 23, 1996
    Assignees: Sanyo Electric Co., Ltd., Fujitec Co., Ltd.
    Inventors: Kimio Matsumoto, Ichihiro Sawaike, Atsuo Nishigakik, Akitoshi Yamashita, Tomohiko Tsumura