Disc accessing using coarse and fine actuators with the fine act

Details Disc accessing using coarse and fine actuators with the fine act Disc accessing using coarse and fine actuators with the fine act

1986-02-11

1988-04-05

Cardillo, Raymond F.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 33, 369 41, 369 44, 360 78, 318593, G11B 2108, G11B 2110, G11B 700

Patent

active

047363533

ABSTRACT:
A method of accessing a rotary recording medium for positioning a head at a desired track on the rotary recording medium by using a coarse actuator and a fine actuator, comprising the steps of comparing an output signal produced from a detector for detecting movement of the fine actuator occurring immediately before initiation of an access operation of the coarse actuator with an output signal subsequently produced from the detector during the access operation of the coarse actuator to produce a comparison output signal, and locking the fine actuator at a state occurring immediately before the initiation of the access operation by driving the fine actuator on the basis of the comparison output signal to thereby suppress vibrations of the fine actuator due to translocations of the coarse actuator. An information memory apparatus utilizing the access method is also disclosed.

REFERENCES:
patent: 4106058 (1978-08-01), Romeas et al.
patent: 4562562 (1985-12-01), Moriya et al.
patent: 4607358 (1986-08-01), Maeda et al.
patent: 4613963 (1986-09-01), Hirano
patent: 4615023 (1986-09-01), Inada et al.

Affiliated with

Also associated with

Rating

Disc accessing using coarse and fine actuators with the fine act does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disc accessing using coarse and fine actuators with the fine act, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disc accessing using coarse and fine actuators with the fine act will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2238388