Method and apparatus for stop-motion playback of a record disc

Details Method and apparatus for stop-motion playback of a record disc Method and apparatus for stop-motion playback of a record disc

1985-10-02

1986-04-15

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358310, 358335, 358341, 360 101, 360 191, G11B 700

Patent

active

045831319

ABSTRACT:
A video record medium, such as a record disc, for recording a composite video and audio signal suitable for stop-motion playback, with accompanying audio. Discrete segments of an analog audio signal are digitized and compressed in time and recorded on alternate tracks on the disc, and corresponding frames of a video signal are recorded on the tracks located therebetween. During playback of the disc, a selected audio track is scanned initially and the digital audio data recovered therefrom is entered into a memory device, after which the track for recording the corresponding video frame is scanned in a repeated fashion, to produce a stop-motion display of the frame, while the stored audio data is extracted from the memory device and converted back to an analog format, for simultaneous playback at its original speed.

REFERENCES:
patent: 3789137 (1974-01-01), Newell
patent: 3878560 (1975-04-01), Ramage
patent: 3909512 (1975-09-01), Omori et al.
patent: 4030129 (1977-06-01), Whitlock
patent: 4065794 (1977-12-01), Shutterly
patent: 4065795 (1977-12-01), Shutterly
patent: 4138694 (1979-02-01), Doi et al.
patent: 4141039 (1979-02-01), Yamamoto
Ludeman, Extended Audio-Video System, IBM Tech. Disc. Bulletin, vol. 19, No. 5, 10/76, pp. 1546-1547.

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