Patents by Inventor Loyd G. Dorsett

Loyd G. Dorsett 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).

  • Single medium audio-visual teaching machine
    Patent number: 4094079
    Abstract: An audio-visual teaching machine including a source record playback unit providing a composite source output signal corresponding to a source record having audio, video control and source control portions; a video control unit for storing the video control portion of the composite source output signal and providing a composite video signal corresponding to the stored video control portion for application to a video display unit; a source control unit responsive to the source control portion of the composite source output signal for controlling the operation of the video control unit and the source record playback unit; and circuitry for applying the audio portion of the composite source output signal to an audio output unit.
    Type: Grant
    Filed: April 5, 1977
    Date of Patent: June 13, 1978
    Assignee: Dorsett Educational Systems, Inc.
    Inventor: Loyd G. Dorsett