Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1988-06-22
1989-12-12
Richardson, Robert L.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
358342, 358907, 360 7804, 369 44, 369 56, 369 57, G11B 700
Patent
active
048872539
ABSTRACT:
A disk player and a method for operating a disk player in which the picture scanning speed for both a constant angular velocity disk and a constant linear velocity disk are made constant and independent of the characteristics of the slider which carries the pickup or of the radial position of the pickup relative the inner radius of the disk. During a jump operation, the number of tracks detected by a track counter is compared with a designated value, and the jump operation is repeated if a scanning command is still present at the end of the previous operation. In the case of a constant angular velocity disk, the designated value is a fixed value, whereas the designated value is calculated in accordance with the present position of the pickup for a constant linear velocity disk.
REFERENCES:
patent: 4677602 (1987-06-01), Okano et al.
patent: 4817069 (1989-03-01), Shigemori
patent: 4817073 (1989-03-01), Suzuki
patent: 4837637 (1989-06-01), Akiyama et al.
Pioneer Electronic Corporation
Richardson Robert L.
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