Patents by Inventor Katunori Matsuoka

Katunori Matsuoka 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).

  • Method and apparatus for pattern recognition and display with optical correlator
    Patent number: 5257322
    Abstract: A pattern recognition method and apparatus wherein an optical correlator and a feedback light path are provided. In the optical correlator, an input pattern whose image is formed on a first spatial light modulator (valve) is read by the irradiation of coherent light, and an image of a correlation peak image of this reading light is formed by the use of a correlation filter on which a plurality of reference patterns are recorded in the form of modified patterns. In the feedback light path, the correlation peak image is formed on a second spatial light modulator (valve), the correlation peak image is read out by the irradiation of coherent light, and the light having read the correlation image is made to pass a display filter on which display reference patterns are recorded.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: October 26, 1993
    Assignee: Agency of Industrial Science and Technology
    Inventors: Katunori Matsuoka, Kazuo Ohtani, Hironobu Okuyama