Optical recording and reproducing apparatus making access by mul

Details Optical recording and reproducing apparatus making access by mul Optical recording and reproducing apparatus making access by mul

1993-02-09

1993-12-14

McElheny, Jr., Donald E.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 4428, G11B 700

Patent

active

052709884

ABSTRACT:
In the case of making a multitrack jump from the present track of a recording medium to an objective track, a light beam is moved by a jump signal, the track crossing speed of the light beam and the number of the crossed tracks are detected from a track error signal in such case and, in case the crossed track number becomes at least a value near the objective track, the track crossing speed is controlled to be below a tracking servo retractable speed so that the light beam may smoothly ground on the objective track.

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patent: 5036506 (1991-07-01), Bierhoff
patent: 5038333 (1991-08-01), Chow et al.

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