Disc apparatus having servo circuits which compensate for fluctu

Details Disc apparatus having servo circuits which compensate for fluctu Disc apparatus having servo circuits which compensate for fluctu

1995-03-28

1998-01-06

Edun, Muhammad N.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 47, G11B 700

Patent

active

057062641

ABSTRACT:
A servo apparatus for which the servo operation remains stable even if the power supply voltages changes, and the control processing load and amount of control data necessary is reduced by setting up gain variation equipment so as to proceed phase compensators, or setting up gain variation equipment so as to proceed selectors, so that the gain set-up at the time of non-loop operations such as focus searches and track jumps etc. can be varied by the gain variation equipment and the extent of variation of the gain variation equipment can be controlled simultaneously for a number of servo systems.

REFERENCES:
patent: 3909608 (1975-09-01), Le Merer et al.
patent: 4023033 (1977-05-01), Bricot et al.
patent: 4561032 (1985-12-01), Matsumoto et al.
patent: 4771414 (1988-09-01), Yoshimatsu
patent: 4817072 (1989-03-01), Toide et al.
patent: 4820940 (1989-04-01), Wachi et al.
patent: 4942565 (1990-07-01), Lagadec
patent: 4951274 (1990-08-01), Iwanaga et al.
patent: 5023854 (1991-06-01), Satoh et al.
patent: 5042020 (1991-08-01), Endo
patent: 5065380 (1991-11-01), Yokota
patent: 5097458 (1992-03-01), Suzuki
patent: 5105409 (1992-04-01), Kaku et al.
patent: 5138592 (1992-08-01), Fujita
patent: 5161139 (1992-11-01), Inoue et al.
patent: 5257253 (1993-10-01), Otsubo et al.
patent: 5268883 (1993-12-01), Yamaguchi et al.
patent: 5268886 (1993-12-01), Nagashima et al.
patent: 5270996 (1993-12-01), Ono
patent: 5272693 (1993-12-01), Fujisawa
patent: 5276665 (1994-01-01), Aoki et al.
patent: 5278401 (1994-01-01), Takishima et al.
patent: 5281802 (1994-01-01), Kitabayashi
patent: 5297114 (1994-03-01), Itoh et al.
patent: 5349175 (1994-09-01), Prikryl
Patent Abstracts of Japan, vol. 011002, Publ. No. JP 61180935, Publ. Date Aug. 13, 1986, Inv. Mari Kimura et al., "Optical Signal Recording and Reproducing Device".
IBM Technical Disclosure Bulletin, vol. 29, No. 10, Mar. 1987, Armonk, NY, USA, "Optical Disk Read Channel".
Article--"Reflection Polarizing Holographic Optical Element for Compact Magnetooptical Disk Heads," Akitomo Ohba et al., Applied Optics, vol. 29, No. 34, Dec. 1, 1990.

Affiliated with

Also associated with

Rating

Disc apparatus having servo circuits which compensate for fluctu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disc apparatus having servo circuits which compensate for fluctu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disc apparatus having servo circuits which compensate for fluctu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2335595