Apparatus for reading a disk-shaped record carrier with track ju

Details Apparatus for reading a disk-shaped record carrier with track ju Apparatus for reading a disk-shaped record carrier with track ju

1975-11-04

1977-11-08

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

1791003V, 360 10, H04N 576

Patent

active

040578321

ABSTRACT:
An apparatus for optically reading a record carrier on which information is contained in tangentially extending tracks includes a directing system for making the scanning spot cooperate with the desired track. In order to enable a jump-wise displacement of the scanning spot from a track being followed to an adjacent track, a switching device is provided for supplying a suitable control signal to the directing system. The control signal is automatically adapted to varying track distances, so that a correct jump-wise displacement of the scanning spot is guaranteed.

REFERENCES:
patent: 3854015 (1974-12-01), Janssen
patent: 3876842 (1975-04-01), Bouwhuis
patent: 3911211 (1975-10-01), Rennick

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