Constant velocity track jump servo system for disc players

Details Constant velocity track jump servo system for disc players Constant velocity track jump servo system for disc players

1988-08-03

1990-09-04

Stephan, Steven L.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 41, 369 43, 369 4411, 360 7702, 360 7804, 360 7806, G11B 2108, G11B 7085, G11B 2110

Patent

active

049550101

ABSTRACT:
A record disc reproducing apparatus, which can be used for searching for a desired track location rapidly, including a pick-up device for reading data from the disc and which is movable is a radial direction with respect to the disc and a driver for driving the pick-up device radially with respect to the disc. The moving velocity of the pick-up device is detected and used to produce a velocity signal corresponding to the moving velocity. A kick signal is generated to energize the driver and is controlled so that the velocity signal approaches a predetermined reference velocity value. During track seeking the apparatus eliminates or removes the effects of phase compensation used during reproduction.

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Patent Abstracts of Japan, vol. 7, No. 192, (P-218)[1337], Aug. 23rd, 1983, 58-91559, Hosokawa.

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