Patents by Inventor Fumito Shimamura

Fumito Shimamura 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).

  • Video transmission apparatus
    Patent number: 5991313
    Abstract: A video transmission apparatus comprises video codec for compression-encoding video data to be transmitted and decompression-decoding video data as received; a first audio codec for compression-encoding first audio data to be transmitted and decompression-decoding first audio data as received; a second audio codec for compression-encoding second audio data to be transmitted and decompression-decoding second audio data as received; a multiplexer-demultiplexer for including a three-channel buffer memory and processor; and an interface connectable to communications satellite network and ground network. In the multiplexer-demultiplexer, video data-first audio data and second audio data to be transmitted are multiplexed and converted to a packet based on a predetermined communication format, and packet as received is separated into video data-first audio data, and second audio data.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: November 23, 1999
    Assignee: Toko, Inc.
    Inventors: Hiroshi Tanaka, Masaru Kawazoe, Fumito Shimamura, Ryoichi Honma, Kazuma Sato