Patents by Inventor Tsutomu Hirohama

Tsutomu Hirohama 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).

  • Voice guide system including portable terminal units and control center having write processor
    Patent number: 5797125
    Abstract: Identification code transmitting units are respectively installed in different guide areas and respectively transmit different identification codes. Each of plural portable terminal units includes a memory for storing plural pieces of guide information respectively associated with the different guide areas in any one of different languages, a receiver for receiving the identification code transmitted by any one of the transmitting units, a selector for selecting one of the plural pieces of guide information according to the received identification code, and a voice generator for generating a voice corresponding to the selected piece of guide information.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: August 18, 1998
    Assignee: Videotron Corp.
    Inventor: Tsutomu Hirohama