G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.1
G11B 7/00 (2006.01) G11B 7/085 (2006.01)
Patent
CA 1308483
ABSTRACT OF THE DISCLOSURE An optical disc reproducing apparatus reproduces a pre-recorded signal from an intended track of an optical disc by detecting reflected light beams of main and sub light beams reflected from the optical disc, where the main light beam is irradiated as a main beam spot on the track while the sub light beams are irradiated as sub beam spots at intermediate portions between two successive tracks one of which is the intended track. The main beam spot jumps from the intended track to an adjacent track at a predetermined rate while maintaining a relative positional relationship of the main and sub beam spots in a speed-change mode. The optical disc reproducing apparatus comprises terminals for receiving first and second reproduced signals detected from the reflected light beams of the main light beam and at least one of the sub light beams reflected from the optical disc, a delay part for matching timings of the first and second reproduced signals by delaying at least one of the two signals, and a selecting part supplied with the first and second reproduced signals from the delay part for selectively outputting the first reproduced signal during a time when no jump is made and for selectively outputting the second reproduced signal for a predetermined time after a jump starts.
570092
Marks & Clerk
Teac Corporation
LandOfFree
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