Patents by Inventor Shouichi Serizawa

Shouichi Serizawa 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).

  • Fast calculation circuit for cyclic redundancy check code
    Patent number: 5093831
    Abstract: A fast calculation circuit for a cyclic redundancy check code of compressed data having a compressed area and an uncompressed area, the compressed area containing at least a data byte representative of the content of consecutive same data bytes and a data byte representative of the number of consecutive same data bytes.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: March 3, 1992
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventors: Shouichi Serizawa, Tokuhiro Tsukiyama, Tadashi Haga