Optical disc record reproducing apparatus

Details Optical disc record reproducing apparatus Optical disc record reproducing apparatus

1986-09-02

1988-11-29

Faber, Alan

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369106, 369116, 369124, G11B 700, G11B 2736

Patent

active

047886749

ABSTRACT:
An optical disc apparatus provided with a recording correcting system for controlling variations in the recorded bit length. The recording correcting system may be controlled not only while the apparatus is put to work, but also during unoccupied times when the recording, reproducing, and erasing operations are not required from a higher level apparatus. Also, the controlling operation may be performed so that the value of the record correction may be renewed at proper time intervals. The repetition of the correction trial at the proper interval allows a time lapse after the apparatus power-supply is put to work to occur with no undesirable effects and the characteristic variation between respective discs during the disc exchange can be coped with.

REFERENCES:
patent: 4425637 (1984-01-01), Tanaka
patent: 4488277 (1984-12-01), McFarlane
patent: 4516235 (1985-05-01), Tarzaiski
patent: 4646103 (1987-02-01), Sugiyama

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