Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1998-03-18
1999-02-23
Hindi, Nabil
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 32, G11B 700
Patent
active
058751580
ABSTRACT:
A servo control system for an optical information storage device includes an optical detector for detecting information stored on an information storage media and for detecting a servo error signal. The optical detector provides a sum information signal output and at least one servo error signal output. A motor is provided for positioning the optical detector relative to the information storage media. An analog to digital converter receives the sum information signal output and the servo error signal output to thereby output a digital servo error signal at a predetermined sampling rate. The digital servo error signal is normalized to the sum information signal by the analog to digital converter. A digital signal processor for processing the digital servo error signal and outputting a servo control signal is provided. The digital signal processor includes a digital servo compensation transfer function for producing the servo control signal. The digital servo compensation transfer function provides a magnitude null with a minimal phase disturbance occurring at a predetermined frequency being approximately one half of the sampling rate. One embodiment includes a driver that receives the servo control signal to control the motor.
REFERENCES:
patent: 32051 (1861-12-01), Ceshkovsky et al.
patent: 32431 (1861-06-01), Dakin et al.
patent: 32574 (1861-01-01), Ceshkovsky et al.
patent: 32709 (1861-07-01), Ceshkovsky et al.
patent: 2432432 (1947-12-01), MacNeille
patent: 3310792 (1967-03-01), Groom et al.
patent: 3518442 (1970-06-01), Johnson
patent: 3530258 (1970-09-01), Gregg et al.
patent: 3536375 (1970-10-01), Mansell
patent: 3637984 (1972-01-01), Irvine
patent: 3652167 (1972-03-01), Smith
patent: 3677621 (1972-07-01), Smith
patent: 3806668 (1974-04-01), Hilliker
patent: 3931641 (1976-01-01), Watrous
patent: 3997715 (1976-12-01), Elliott
patent: 4059841 (1977-11-01), Bricot et al.
patent: 4118735 (1978-10-01), Wilkinson
patent: 4160156 (1979-07-01), Sherer
patent: 4161753 (1979-07-01), Bailey et al.
patent: 4190860 (1980-02-01), Somers et al.
patent: 4191570 (1980-03-01), Herting et al.
patent: 4204199 (1980-05-01), Isailovic
patent: 4210931 (1980-07-01), Bailey et al.
patent: 4222072 (1980-09-01), Bailey et al.
patent: 4225873 (1980-09-01), Winslow
patent: 4228326 (1980-10-01), Dakin et al.
patent: 4232201 (1980-11-01), Canino
patent: 4232337 (1980-11-01), Winslow et al.
patent: 4232388 (1980-11-01), Isailovic
patent: 4234837 (1980-11-01), Winslow
patent: 4236050 (1980-11-01), Winslow et al.
patent: 4236105 (1980-11-01), Wilkinson
patent: 4271334 (1981-06-01), Yardy
patent: 4282598 (1981-08-01), Elliott
patent: 4307381 (1981-12-01), Isailovic
patent: 4313191 (1982-01-01), Winslow et al.
patent: 4358796 (1982-11-01), Ceshkovsky et al.
patent: 4370679 (1983-01-01), Ceshkovsky et al.
patent: 4371899 (1983-02-01), Ceshkovsky et al.
patent: 4375091 (1983-02-01), Dakin et al.
patent: 4406000 (1983-09-01), Shoji et al.
patent: 4414655 (1983-11-01), Shoji et al.
patent: 4425043 (1984-01-01), van Rosmalen
patent: 4439848 (1984-03-01), Ceshkovsky et al.
patent: 4447722 (1984-05-01), Saimi
patent: 4449213 (1984-05-01), Noborimoto et al.
patent: 4451913 (1984-05-01), Elliott
patent: 4455634 (1984-06-01), Efron et al.
patent: 4456914 (1984-06-01), Winslow
patent: 4465977 (1984-08-01), Lopez De Romana
patent: 4467467 (1984-08-01), Wilkinson et al.
patent: 4488279 (1984-12-01), Wilkinson et al.
patent: 4497534 (1985-02-01), Sincerbox
patent: 4499569 (1985-02-01), Lopez De Romana
patent: 4502783 (1985-03-01), Lau et al.
patent: 4504935 (1985-03-01), Jensen
patent: 4514837 (1985-04-01), Van Rosmalen
patent: 4524444 (1985-06-01), Efron et al.
patent: 4536863 (1985-08-01), Giddings
patent: 4542429 (1985-09-01), Nishida et al.
patent: 4561081 (1985-12-01), Janssen et al.
patent: 4562577 (1985-12-01), Glover et al.
patent: 4568142 (1986-02-01), Iguma
patent: 4571026 (1986-02-01), Maruta
patent: 4571716 (1986-02-01), Szerlip
patent: 4583210 (1986-04-01), Winslow
patent: 4592037 (1986-05-01), Ohnuki
patent: 4596444 (1986-06-01), Ushida
patent: 4596448 (1986-06-01), Kikuchi
patent: 4598324 (1986-07-01), Efron et al.
patent: 4603363 (1986-07-01), Rickert et al.
patent: 4603412 (1986-07-01), Yamazaki
patent: 4611318 (1986-09-01), Winslow
patent: 4623837 (1986-11-01), Efron et al.
patent: 4627038 (1986-12-01), Abed et al.
patent: 4633471 (1986-12-01), Perera et al.
patent: 4638377 (1987-01-01), Dakin
patent: 4643522 (1987-02-01), Takashima
patent: 4644516 (1987-02-01), Musha
patent: 4646283 (1987-02-01), Ito et al.
patent: 4669073 (1987-05-01), Wakabayashi et al.
patent: 4679904 (1987-07-01), Kurihara
patent: 4682246 (1987-07-01), Efron et al.
patent: 4688204 (1987-08-01), Noyes, Jr. et al.
patent: 4694447 (1987-09-01), Cohen et al.
patent: 4696566 (1987-09-01), Sekimoto et al.
patent: 4697167 (1987-09-01), O'Keeffe et al.
patent: 4701898 (1987-10-01), Giddings
patent: 4702555 (1987-10-01), Iguma et al.
patent: 4703368 (1987-10-01), Dakin
patent: 4703467 (1987-10-01), Elliott
patent: 4706133 (1987-11-01), Giddings
patent: 4720088 (1988-01-01), Tamura
patent: 4727433 (1988-02-01), Dakin
patent: 4727532 (1988-02-01), Giddings
patent: 4740941 (1988-04-01), Shah et al.
patent: 4740946 (1988-04-01), Yumura et al.
patent: 4746991 (1988-05-01), Efron et al.
patent: 4750065 (1988-06-01), Masaki et al.
patent: 4751692 (1988-06-01), Giddings
patent: 4752954 (1988-06-01), Masuko
patent: 4755884 (1988-07-01), Efron et al.
patent: 4757393 (1988-07-01), Dakin et al.
patent: 4763314 (1988-08-01), McCaslin et al.
patent: 4764915 (1988-08-01), Efron et al.
patent: 4769803 (1988-09-01), Yamamiya
patent: 4774699 (1988-09-01), Giddings
patent: 4786999 (1988-11-01), Tanaka et al.
patent: 4791622 (1988-12-01), Clay et al.
patent: 4792875 (1988-12-01), Ohdaira
patent: 4794586 (1988-12-01), Korth
patent: 4797763 (1989-01-01), Levy et al.
patent: 4805162 (1989-02-01), Stahl et al.
patent: 4809247 (1989-02-01), Elliott
patent: 4811320 (1989-03-01), Kawasaki et al.
patent: 4823336 (1989-04-01), Inada et al.
patent: 4829395 (1989-05-01), Coon et al.
patent: 4842392 (1989-06-01), Nakamura et al.
patent: 4845697 (1989-07-01), Giddings
patent: 4845699 (1989-07-01), Kawasaki et al.
patent: 4849952 (1989-07-01), Shiho
patent: 4853811 (1989-08-01), Brooks, Jr. et al.
patent: 4866687 (1989-09-01), Kasai et al.
patent: 4868694 (1989-09-01), Hagen
patent: 4870703 (1989-09-01), Augeri et al.
patent: 4878211 (1989-10-01), Suzuki
patent: 4882644 (1989-11-01), Kimura et al.
patent: 4912583 (1990-03-01), Hinlein
patent: 4942563 (1990-07-01), Yamamuro
patent: 4942564 (1990-07-01), Hofer et al.
patent: 4953959 (1990-09-01), Ishiwata et al.
patent: 4979158 (1990-12-01), Yoda
patent: 4988165 (1991-01-01), Ishii et al.
patent: 4998011 (1991-03-01), Shuman
patent: 5001568 (1991-03-01), Efron et al.
patent: 5003524 (1991-03-01), Ikeda
patent: 5003526 (1991-03-01), Bailey
patent: 5025335 (1991-06-01), Stefansky
patent: 5044729 (1991-09-01), Tomita et al.
patent: 5079757 (1992-01-01), Wachi et al.
patent: 5084852 (1992-01-01), Bailey
patent: 5103438 (1992-04-01), Masunage et al.
patent: 5124967 (1992-06-01), Isaka et al.
patent: 5126990 (1992-06-01), Efron et al.
patent: 5128911 (1992-07-01), Ito et al.
patent: 5136558 (1992-08-01), Getreuer et al.
patent: 5136560 (1992-08-01), Hangai et al.
patent: 5138605 (1992-08-01), Shtipelman et al.
patent: 5146443 (1992-09-01), Iwase et al.
patent: 5150343 (1992-09-01), Goto et al.
patent: 5155633 (1992-10-01), Grove et al.
patent: 5175716 (1992-12-01), Min
patent: 5175719 (1992-12-01), Iimura
patent: 5177640 (1993-01-01), Grassens
patent: 5177717 (1993-01-01), Sato et al.
patent: 5187627 (1993-02-01), Hickox
patent: 5187702 (1993-02-01), Takahashi
patent: 5189653 (1993-02-01), Yanagi
patent: 5191570 (1993-03-01), Shirai
patent: 5200935 (1993-04-01), Watanabe et al.
patent: 5216647 (1993-06-01), Kitani
patent: 5220543 (1993-06-01), Kuroda et al.
patent: 5241524 (1993-08-01), Lee
patent: 5245174 (1993-09-01), Prikryl et al.
patent: 5253244 (1993-10-01), Bailey
patent: 5262913 (1993-11-01), Stram et al.
patent: 5265079
Bollella Donald
Braun Robert T.
Discovision Associates
Hindi Nabil
Thyfault Paul
LandOfFree
Servo control system for information storage device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Servo control system for information storage device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Servo control system for information storage device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-312986