Patents by Inventor Yasuyuki Komura

Yasuyuki Komura 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).

  • Graphic information compression method and system
    Patent number: 4058674
    Abstract: Graphic information is encoded in the form of an electrical pulse train, which is divided into a number of blocks of equal length. Only those blocks containing pulses are retained, and are combined for transmission with a decoding signal for subsequent synthesis of the original pulse train. The compression efficiency may be further increased by converting the pulse train into delta graphic form, or a modified delta graphic form in which extremely short pulses are suppressed prior to compression.
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: November 15, 1977
    Assignee: Kabushiki Kaisha Ricoh
    Inventor: Yasuyuki Komura