Tracking jump compensator for optical disc reproducing apparatus

Details Tracking jump compensator for optical disc reproducing apparatus Tracking jump compensator for optical disc reproducing apparatus

1990-04-23

1992-09-15

Envall, Jr., Roy N.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 4428, 369 4432, 360 7811, G11B 1722

Patent

active

051484170

ABSTRACT:
The present invention is concerned with an optical disk reproducing apparatus for reproducing digital data from an optical disk, such as an audio compact disk and, above all, with such apparatus in which a continuous playback output may be produced even when track jump should occur due to vibrations or the like. With the optical disk reproducing apparatus according to the present invention, digital data detected from an optical disk are sequentially written in a RAM for subsequent reading so that data stored in the RAM continue to be read even on the occurrence of the track jump to provide a continuous playback output. On the other hand, the optical disk is reproduced at an increased speed for a predetermined time period after the light spot irradiating the optical disk resets to its original position from track jump to replenish digital data to the RAM.

REFERENCES:
patent: 4796247 (1989-01-01), Vogelsang
patent: 4860272 (1989-08-01), Nishikawa et al.
patent: 4882642 (1989-11-01), Tayler et al.
patent: 4932018 (1990-06-01), Nagasawa et al.
patent: 4977550 (1990-12-01), Furuya et al.

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