Patents by Inventor Masami Muroya

Masami Muroya 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).

  • Handwritten character verification method and apparatus therefor
    Patent number: 6160914
    Abstract: A handwritten character recognition method including the steps of acquiring coordinate information and writing pressure information relating to a handwritten character string as three-dimensional time series information, correcting the handwritten character string data through use of a warping function in order to minimize the overall degree of difference among a plurality of sets of handwritten character string data, and comparing the thus-corrected character string data with registered handwritten character string data by dynamic programming matching so as to obtain the overall degree of difference between the handwritten character string data and the corrected handwritten character string data.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: December 12, 2000
    Assignee: Cadix Inc.
    Inventor: Masami Muroya
  • Pattern generation method for registering handwriting
    Patent number: 5040222
    Abstract: A pattern generation method for registering handwriting and a method for updating same that facilitates the obtaining of a registration pattern that reflects accurately the characteristics of an individual handwritten signature. Dynamic programming matching is used to obtain a cumulative error among a plurality of input patterns in the form of a distortion function, and this distortion function is used for shape averaging and time distortion averaging of input patterns.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: August 13, 1991
    Assignee: Cadix Inc.
    Inventor: Masami Muroya