Patents by Inventor Tadayaki Adachi

Tadayaki Adachi 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).

  • Sound control system in an electronic musical instrument
    Patent number: 4095502
    Abstract: In an electronic musical instrument of the type having keys, a system for controlling the volume of the sound produced by the instrument when the keys are depressed or struck. For each key, the system comprises a tone generator, a gate coupled between the tone generator and the speaker of the instrument; and control means for producing a control signal having an amplitude which is a function of the speed at which its associated key is moved while being depressed. The control signal is applied to the gate to pass the output of the tone generator to the speaker and to control the volume of the sound produced by the speaker.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: June 20, 1978
    Assignee: Rhythm Band, Inc.
    Inventors: William T. Moore, Tadayaki Adachi