Disc drive device operable with different discs that may exhibit

Details Disc drive device operable with different discs that may exhibit Disc drive device operable with different discs that may exhibit

1995-09-27

1997-11-18

Tran, Thang V.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 4428, G11B 1722

Patent

active

056894821

ABSTRACT:
An optical disc drive device performs a seek operation during a recording and/or reproducing mode on different discs, such as CDs or MDs, individually loaded thereon, which may differ from one another in linear velocity or circumferential recording density. The linear velocity of a disc is calculated as a function of the number of rotations of a disc spin motor and position information of the pickup head. The number of tracks from a current position of the pickup to a target position is determined by using the address of the target position and the linear velocity of the disc.

REFERENCES:
patent: 5136560 (1992-08-01), Hangai et al.
patent: 5216647 (1993-06-01), Kitani
patent: 5247498 (1993-09-01), Takekoshi et al.
patent: 5444682 (1995-08-01), Yamada et al.

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