Patents by Inventor Toru Kitayama

Toru Kitayama 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).

  • Musical tone synthesizing apparatus having smoothly varying tone control parameters
    Patent number: 5359146
    Abstract: A musical tone synthesizing apparatus provides a time-varying signal processing circuit the transfer function of which gradually varies over time in order to gradually vary over time the tone color of a synthesized musical tone. A number of time-varying signal processing circuits are presented. An interpolation-type-time-varying signal processing circuit is provided with interpolators for interpolating control parameters generated based on a desired musical tone, a signal processing circuit carrying out a signal operation based on the interpolated control parameters on an input signal incomming thereto.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: October 25, 1994
    Assignee: Yamaha Corporation
    Inventors: Tomoyuki Funaki, Iwao Higashi, Toru Kitayama, Hideyuki Masuda, Toshifumi Kunimoto