Patents by Inventor Junichi Kunikata

Junichi Kunikata 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).

  • Patent number: 5953443
    Abstract: To provide a stripe pattern matching system enabling to verify minutia correspondence between a searching stripe pattern and a filed stripe pattern independent of position or direction of the searching stripe pattern, correspondence value between them is evaluated by comparing their distances, directions or relations to their each neighboring minutiae by a pairing examination means (16). The most appropriate rotation angle and the most appropriate shifting coordinates for adjusting the searching stripe pattern to the filed stripe pattern is obtained by selecting a most appropriate axial candidate giving the most concentrated coordinate deviations referring to deviation distributions of correspondence values accumulated on a deviation plane memory (18) by applying each axial candidate as the coordinate adjustment reference. Therefore, the most appropriate coordinate adjustment can be performed even when either or both of absolute direction and position cannot be specified, in the invention.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: September 14, 1999
    Assignee: NEC Corporation
    Inventors: Seiichi Hiratsuka, Yukio Hoshino, Junichi Kunikata, Yoshihide Takahashi