Position control device for an optical reproduction system in an

Details Position control device for an optical reproduction system in an Position control device for an optical reproduction system in an

1984-10-11

1987-09-15

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 59, G11B 2110

Patent

active

046944419

ABSTRACT:
In picking up recorded data from a revolving optical disc by an optical reproduction system in an optical type disc reproduction device and detecting time data of Q subcode from the picked up data for performing operations such as searching a target position, the position control device according to this invention facilitates handling of data in cases such as computing time difference by converting detected present time data from a BCD code into a binary code by a BCD/binary conversion circuit and using the binary coded data. For searching a target position, time difference is detected by a time difference detection circuit on the basis of a difference between the binary coded present time data and target time data and a relative position of the optical reproduction system with respect to the optical disc is changed by a relative position change driver such that the time difference is reduced to zero.

REFERENCES:
patent: 3032266 (1962-05-01), Couleur
patent: 3132245 (1964-05-01), Harper
patent: 4489398 (1984-12-01), Sugiyama et al.
patent: 4516164 (1985-05-01), Moxon
patent: 4546461 (1985-10-01), Isobe
"A Long Play Digital Audio Disk System", Doi et al.; J. of Audio Engr. Society 1979, Dec. vol. 27, No. 12, pp. 975-987.

Affiliated with

Also associated with

Rating

Position control device for an optical reproduction system in an does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Position control device for an optical reproduction system in an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position control device for an optical reproduction system in an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1390061