Single medium audio-visual teaching machine

Details Single medium audio-visual teaching machine Single medium audio-visual teaching machine

1977-04-05

1978-06-13

Pinkham, Richard C.

35 9A, G09B 506

Patent

active

040940799

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.

REFERENCES:
patent: 3376657 (1968-04-01), Dorsett
patent: 3405457 (1968-10-01), Bitzer
patent: 3481052 (1969-12-01), Dorsett
patent: 3555520 (1971-01-01), Helbig et al.
patent: 3579197 (1971-03-01), Stapleford
patent: 3623157 (1971-11-01), Stapleford
patent: 3987484 (1976-10-01), Bosche et al.
patent: 3999307 (1976-12-01), Tsuda et al.
patent: 4032897 (1977-06-01), Pooley
patent: 4040088 (1977-08-01), Hannan

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