Rotation control system for disk player

Details Rotation control system for disk player Rotation control system for disk player

1989-07-21

1991-08-20

Shoop, Jr., William M.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Access of multiple storage elements

369188, 369266, 369239, G11B 2504

Patent

active

050420259

ABSTRACT:
A rotation control system for disk player in which the player detects the size of a disk housed in the player, varies the starting torque to be given to the disk motor in response to the detected size, and controls the disk motor so as to require substantially the same length of time before a prescribed rotational frequency is attained, irrespective of the size of the disk.

REFERENCES:
patent: 4098510 (1978-04-01), Suzuki et al.
patent: 4302833 (1981-11-01), Tanaka et al.
patent: 4416006 (1983-11-01), Kitnamura et al.
patent: 4653090 (1987-03-01), Senso
patent: 4695995 (1987-09-01), Koizumi
patent: 4742508 (1988-05-01), Lee et al.
patent: 4773057 (1988-09-01), Otsuka et al.
patent: 4797869 (1989-01-01), Hirano

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