Optical record carrier reader calculating track pitch and write

Details Optical record carrier reader calculating track pitch and write Optical record carrier reader calculating track pitch and write

1988-08-15

1991-09-10

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 50, 369 58, 369111, G11B 7085

Patent

active

050479997

ABSTRACT:
In order to displace the light beam to a position on the disc determined by a given address code on an optically readable record carrier having information provided with address codes and recorded in substantially concentrical tracks for the purpose of accurate reading, the track pitch and the write velocity with which the information has been recorded on the relevant disc is determined prior to reading. The light beam is displaced from a position with a known address code successively across a given first and second number of tracks and the address code is read after each displacement. The track pitch and the write velocity are calculated from the data obtained so that the relation between the track number and the address code is accurately established.

REFERENCES:
patent: 3662353 (1972-05-01), Chertok
patent: 4340949 (1982-07-01), Kelleher
patent: 4578786 (1986-03-01), McIntosh et al.
patent: 4759007 (1988-07-01), Eberly
patent: 4829497 (1989-05-01), Sako et al.
Patent Abstracts of Japan, vol. 9, No. 177, p. 375, 7/23/85, & JP 60-50676.
Patent Abstracts of Japan, vol. 11, No. 49, p. 547, 2/14/87, & JP 61-216181.

Affiliated with

Also associated with

Rating

Optical record carrier reader calculating track pitch and write does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical record carrier reader calculating track pitch and write , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical record carrier reader calculating track pitch and write will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-546018