Patents by Inventor Ryoichi Endoh

Ryoichi Endoh 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: 5142657
    Abstract: An apparatus for drilling pronunciation has a voice analyzer for analyzing voice signals produced by a speaker during pronunciation, a memory for storing at least the result of the voice analysis, and a display for displaying at least the result of the voice analysis. The apparatus further includes a plurality of keys, each of the keys being operable by a user, and circuitry for controlling two screen constitutions independently of each other on the display in response to manipulation of the keys whereby the screen constitutions display the result of the voice analysis in a comparative manner.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: August 25, 1992
    Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
    Inventors: Sadaaki Ezawa, Ryoichi Endoh, Katsuhiro Hashimoto, Michiko Nihei
  • Patent number: 4969194
    Abstract: An apparatus for drilling the pronunciation of language has a transducer for forming drill voice signals representing a practice utterance of a trainee and a reproducer for generating reference voice signals representing model pronunciation of the utterance. The drill and reference voice signals are compared by a processor and a sensible signal is produced to indicate whether the practice utterance corresponds to the model pronunciation.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: November 6, 1990
    Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
    Inventors: Sadaaki Ezawa, Hiroaki Takano, Ryoichi Endoh