Tracking system for optical disc memory using tracking error sig

Details Tracking system for optical disc memory using tracking error sig Tracking system for optical disc memory using tracking error sig

1994-08-12

1995-05-02

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4437, 369 4441, G11B 7095

Patent

active

054126304

ABSTRACT:
A tracking system for positioning a light spot onto a magneto optic or optical disc having a beam guide track preformatted thereon comprises a main light beam and two auxiliary light beams, and a circuit for subtracting a low frequency component of a difference between the tracking error signals, detected by the respective auxiliary light beams and the main light beam, from a tracking error signal detected by the main light beam.

REFERENCES:
patent: 4344165 (1982-08-01), Akiyama
patent: 4358796 (1982-11-01), Ceshhovsky et al.
patent: 4512002 (1985-04-01), Kosaka et al.
patent: 4539665 (1985-09-01), Iso et al.
patent: 4544838 (1985-10-01), Musha et al.
patent: 4564929 (1986-01-01), Yonezawa et al.
patent: 4581728 (1986-04-01), Nakamura et al.
patent: 4627040 (1986-12-01), Arai et al.
patent: 4661942 (1987-04-01), Yoshimoto et al.
patent: 4663751 (1987-05-01), Kaku et al.
patent: 4695992 (1987-09-01), Aoi
patent: 4707816 (1987-11-01), Yonezawa et al.
patent: 4748609 (1988-05-01), Yonezawa et al.
patent: 4751695 (1988-06-01), Kaku et al.
Patent Abstracts of Japan, vol. 8, No. 237, (p-310), Oct. 30, 1984, & JP59-112442.
Patent Abstracts of Japan, vol. 8, No. 144, (p-284), Jul. 05, 1984, & JP59-42673.
Patent Abstracts of Japan, vol. 9, No. 243, (p-392), Sep. 30, 1985, & JP60-95736.
Patent Abstracts of Japan, vol. 9, No. 327, (p-415), Dec. 21, 1985, & JP60-151846.

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