Patents by Inventor Robert D. Polson

Robert D. Polson 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).

  • Digital high speed guitar synthesizer
    Patent number: 4336734
    Abstract: A musical instrument is structured as a guitar and incorporates electronic circuitry to synthesize musical tones. The instrument is played in the fashion of a guitar with tones generated in response to switches activated through strumming action. The pitch of the tones is controlled by touch-sensitive switch devices mounted at addresses corresponding to fret and string locations. The instrument may be polyphonic with separate tones generated by activation of a plurality of devices corresponding to strings.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: June 29, 1982
    Inventor: Robert D. Polson