Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1995-04-11
1998-09-15
Hindi, Nabil
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
G11B 700
Patent
active
058089802
ABSTRACT:
An apparatus for optically reading or recording information on an optical disc which is rotatable about an axis of rotation. The apparatus includes a frame, a carriage movable relative to the frame along a path orthogonal to the axis of rotation, and a carriage drive for driving the carriage along the orthogonal path. Specific portions of the carriage drive are mounted on the carriage so that the carriage and the mounted portions define a center of carriage mass. An objective lens having an optical axis along a Z-axis and a center of lens mass is provided in an objective lens holder. The holder is movable relative to the carriage and receives a beam of light traveling along an X-axis. Flexures are provided for movably supporting the objective lens holder relative to the carriage. The flexures each have a hinge point within an XZ plane so that movement of the lens holder is provided by hinge action at the hinge points. A focus drive is provided for driving the lens holder which moves the objective lens along its optical axis. The focus drive and the objective lens holder define a center of fine motor mass. The center of fine motor mass, the center of carriage mass, and the center of lens mass are substantially coincident on the optical axis so that when the objective lens holder is moved in a tracking direction, moments about the Z-axis are minimized.
REFERENCES:
patent: Re32051 (1985-12-01), Ceshkovsky et al.
patent: Re32431 (1987-06-01), Dakin et al.
patent: Re32574 (1988-01-01), Ceshkovsky et al.
patent: Re32709 (1988-07-01), 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 et al.
patent: 3652167 (1972-03-01), Smith
patent: 3677621 (1972-07-01), Smith
patent: 3931641 (1976-01-01), Watrous
patent: 3997715 (1976-12-01), Elliott
patent: 4118735 (1978-10-01), Wilkinson
patent: 4161753 (1979-07-01), Bailey et al.
patent: 4190860 (1980-02-01), Somers et al.
patent: 4191570 (1980-03-01), Shirai
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: 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), 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), De Romana
patent: 4502783 (1985-03-01), Lau et al.
patent: 4504935 (1985-03-01), Jansen
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: 4562577 (1985-12-01), Glover et al.
patent: 4568142 (1986-02-01), Iguma
patent: 4571026 (1986-02-01), Maurta
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: 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: 4751692 (1988-06-01), Giddings
patent: 4755884 (1988-07-01), Efron et al.
patent: 4757393 (1988-07-01), Dakin
patent: 4763314 (1988-08-01), McCaslin et al.
patent: 4764915 (1988-08-01), Efron et al.
patent: 4769803 (1988-09-01), Yammaiya
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: 4853811 (1989-08-01), Brooks, Jr. et al.
patent: 4868694 (1989-09-01), Hagen
patent: 4882644 (1989-11-01), Kimura et al.
patent: 4912583 (1990-03-01), Hinlein
patent: 4942563 (1990-07-01), Yamamuro
patent: 4953959 (1990-09-01), Ishiwata et al.
patent: 4988165 (1991-01-01), Ishii et al.
patent: 4998011 (1991-03-01), Shuman
patent: 5001568 (1991-03-01), Efron et al.
patent: 5003526 (1991-03-01), Bailey
patent: 5044729 (1991-09-01), Tomita et al.
patent: 5084852 (1992-01-01), Bailey
patent: 5103438 (1992-04-01), Masunaga et al.
patent: 5126990 (1992-06-01), Efron et al.
patent: 5136558 (1992-08-01), Getreuer et al.
patent: 5138605 (1992-08-01), Shtipelman et al.
patent: 5150343 (1992-09-01), Goto et al.
patent: 5155633 (1992-10-01), Grove et al.
patent: 5177640 (1993-01-01), Grassens
patent: 5187702 (1993-02-01), Takahashi
patent: 5191570 (1993-03-01), Shirai
patent: 5245174 (1993-09-01), Prikryl et al.
patent: 5253244 (1993-10-01), Bailey
patent: 5268800 (1993-12-01), Nielsen
patent: 5291110 (1994-03-01), Andrews, Jr. et al.
patent: 5313332 (1994-05-01), Schell et al.
patent: 5317143 (1994-05-01), Yoshimoto et al.
patent: 5319624 (1994-06-01), Yamasaki et al.
patent: 5321680 (1994-06-01), Bailey
patent: 5331622 (1994-07-01), Ernst et al.
patent: 5347500 (1994-09-01), Eguchi
patent: 5349175 (1994-09-01), Prikryl
patent: 5373490 (1994-12-01), Bailey
patent: 5375116 (1994-12-01), Bailey
patent: 5398222 (1995-03-01), Kim
patent: 5448545 (1995-09-01), Bailey
patent: 5459624 (1995-10-01), Erickson et al.
patent: 5479390 (1995-12-01), Bailey
H. Ide, et al., Write Control Method for High Density Magneto-Opticla Disk System, Joint International Symposium 1993 IEEE Catalog #93TH0548-8, pp. 61,62.
Takashi Maeda et al., Read Channel and Format for High-Density Magneto-Optical Disk System, Jpn. J. Appl. Phys. Nov. 1993, vol. 32, pp. 5335-5341.
T. Maeda et al., Write Control Method for High Density Magneto-optical Disk System, IEEE Transactions on Magnetics, vol. 29 No. 6 Nov. 1993, pp. 3787-3789.
Hartmann, M., "Erasable Magneto-Optical Recording Media", iIEEE Transactions on Magnetics, vol. Mag-20, No. 5, Sep. 198
Getreuer Kurt W.
Grassens Leonardus J.
Bollella Donald
Braun Robert T.
Clark Ronald J.
Discovision Associates
Hindi Nabil
LandOfFree
Seek actuator for optical recording does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Seek actuator for optical recording, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seek actuator for optical recording will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-95821