Patents by Inventor Yoshikazu Osuga

Yoshikazu Osuga 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).

  • Fingerprint image transmission system utilizing reversible and non-reversible data compression coding techniques
    Patent number: 5644645
    Abstract: A fingerprint image transmission system includes a remote computer system and a central computer system. In the remote computer system, a gray image of a fingerprint image sampled by an image scanner portion (10) is compressed by a non-reversible (lossy) coding by a non-reversible coding mechanism (202) and a skeleton pattern generated by a skeleton generating mechanism (201) by inputting the gray image, is compressed by a reversible (lossless) coding by a reversible coding mechanism (203). The compressed gray image and the compressed skeleton pattern are transmitted to the central computer system through a transmission mechanism (31). In the central computer system, a receiver mechanism (41) receives the gray image and the skeleton pattern transmitted from the remote computer system.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: July 1, 1997
    Assignee: NEC Corporation
    Inventor: Yoshikazu Osuga