Patents by Inventor Fujitaka Taguchi

Fujitaka Taguchi 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).

  • Apparatus for detecting abnormal sound and method for judging wrong in machine
    Patent number: 6170333
    Abstract: A standard pattern vector of a normal sound, an input pattern vector of a monitored sound, a positive vector of a reference pattern, and a negative vector of the reference pattern are produced. Regarding each element, the positive vector is increased by an absolute value of a difference between the input pattern vector and the standard pattern vector if the input pattern vector is greater than the standard pattern vector, and the negative vector is increased by the absolute value if the input pattern vector is less than the standard pattern vector. A difference of a kurtosis between the positive vector and the negative vector is calculated, wherein a center of the reference shape is relatively moved to a position of each element of the positive and negative vectors respectively at every calculation. A geometric distance value between the standard pattern vector and the input pattern vector is obtained by calculating a square root of a sum of a square of each kurtosis difference.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: January 9, 2001
    Assignee: Entropy Software Laboratory, Inc.
    Inventors: Michihiro Jinnai, Hiroshi Yamaguchi, Yoshinao Ishihara, Jun Ohshima, Fujitaka Taguchi, Masahiro Arakawa, Yoshikazu Kidu