Track accessing system using an integrated velocity signal

Details Track accessing system using an integrated velocity signal Track accessing system using an integrated velocity signal

1986-07-09

1988-05-31

Cardillo, Raymond F.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 44, 360 77, 360 78, 318561, 318616, G11B 2108, G11B 2110, G11B 7095

Patent

active

047486074

ABSTRACT:
A record disc reproducing apparatus, which can be used for searching a desired track location rapidly, includes a pick-up device for reading data from the disc and movable in a radial direction with respect to the disc. A velocity detector detects a moving velocity of the pick-up device and produces a velocity signal corresponding to the moving velocity. An integrator integrates the velocity signal. A distance that the pick-up device should be moved is calculated according to addresses of a track presently scanned by the pick-up device and a track to be searched. A generator supplies a distance data corresponding to the distance calculated. A comparator compares the integrated velocity signal with the distance data. The pick-up device is stopped when the comparator produces an output signal.

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patent: 4381526 (1983-04-01), McLaughlin et al.
patent: 4575776 (1986-03-01), Stephens et al.
patent: 4607358 (1986-08-01), Maeda et al.
patent: 4623943 (1986-11-01), Osada et al.

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