Videodisc playback apparatus

Details Videodisc playback apparatus Videodisc playback apparatus

1981-10-08

1984-01-10

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358312, 358342, 358907, 360 101, 360 102, 360 78, H04N 576, G11B 2108

Patent

active

044255870

ABSTRACT:
A videodisc playback system is disclosed which enables repeated reproduction of signals recorded on a videodisc. The system comprises the usual means to mount and rotate the videodisc to be played back and a shifting device that shifts the scanning position of a read-out device in a radial direction of the videodisc. A tracking control device controls the shifting device so that the scanning position of the read-out device is on the track. Further, the system includes fast playback circuitry which causes fast playback of the videodisc by shifting playback tracks N multiple number of times, one track at a time to the next adjacent track, during one revolution of the videodisc. Repeated reproduction of signals is accomplished by circuitry connected to the fast playback circuitry that causes a predetermined number of tracks to be repeatedly played back, the predetermined number being an integral number of N.

REFERENCES:
patent: 4163993 (1979-08-01), Ravizza

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