Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1988-06-28
1991-09-24
Richardson, Robert L.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369 4428, 369 4432, G11B 7085
Patent
active
050519727
ABSTRACT:
A tracking accessing control apparatus for a light beam for an optical disk having an information recording track in which an apparatus for directing the light beam directs the light beam onto the optical disk. A light beam reflected from the optical disk is detected and a tracking signal, which has a track detection alternating signal and a low frequency component, is generated. A high-pass filter filters out the low frequency component to leave only the track detection alternating signal. The number of alternations of the track detection alternating signal is counted, and the light beam directing means if moved across the tracks according to the number of alternations counted.
REFERENCES:
patent: 4663750 (1987-05-01), Hamanaka et al.
patent: 4677602 (1987-06-01), Okano et al.
patent: 4695989 (1987-09-01), Kimoto
patent: 4817073 (1989-03-01), Suzuki
patent: 4837637 (1989-06-01), Akiyama et al.
patent: 4868819 (1989-09-01), Kimura
patent: 4879707 (1989-11-01), Getrener et al.
patent: 4887253 (1989-12-01), Tateishi
Kabushiki Kaisha Toshiba
Richardson Robert L.
Young W. R.
LandOfFree
Track accessing control apparatus having a high-pass filter for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Track accessing control apparatus having a high-pass filter for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Track accessing control apparatus having a high-pass filter for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1702767