Disc rotation servo control apparatus in a disc player

Details Disc rotation servo control apparatus in a disc player Disc rotation servo control apparatus in a disc player

1983-11-08

1986-07-29

Faber, Alan

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 43, 369239, 369111, 360 73, 358342, 358338, G11B 1928

Patent

active

046034129

ABSTRACT:
The rotation speed of a disc rotation motor is controlled such that a synchronizing signal derived from an output signal reproduced from a disc coincides with a reference oscillation frequency. The amount of data accumulated in a memory provided for absorbing jitter of the output signal reproduced from the disc is detected. In response to a result of the detection, a control signal in the disc rotation control is corrected such that the amount of data accumulated in the memory becomes substantially constant.

REFERENCES:
patent: 4190860 (1980-02-01), Somers
patent: 4223349 (1980-09-01), Dakin
patent: 4236050 (1980-11-01), Winslow
patent: 4338683 (1982-07-01), Furukawa

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