Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1997-05-05
2000-03-07
Dinh, Tan
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 13, 360114, G11B 1100
Patent
active
060349387
ABSTRACT:
An optical data storage and retrieval system uses a flying head. The flying head is supported on a moving media having information stored in a plurality of stored data locations thereon. Information is stored in each of the plurality of media locations as physical structures capable of modulating the polarization state of incident light into one of two output polarization states. The flying head includes an optical processing assembly which directs an incident light beam having a source polarization state onto the moving media, accessing successive data locations. A reflected light beam having the source polarization state of the incident light beam modulated by a respective polarization modifying data location into one of the output polarization states is received by the flying head. The optical processing assembly optically transforms the modulated output polarization state of the reflected light beam into two return light beams having differentially modulated intensity related to the output polarization state of the reflected light beam. The two intensity modulated return light beams are optically coupled to a distal differential detector which outputs digital data representing the stored data information for the subject data location. A preferred embodiment includes optical fibers for coupling the incident and return light beams between the detector and the flying head. The optical assembly of a preferred embodiment includes an optical plate having pre-shaped and dimensioned recesses for automatically locating and aligning multiple optical components comprising the assembly. The flying head may also include a servo-controlled micro machined mirror for directing the incident and reflected light beams to and from the media.
REFERENCES:
patent: 3737236 (1973-06-01), Borrelli
patent: 4003059 (1977-01-01), Sugiura et al.
patent: 4051528 (1977-09-01), Takeda et al.
patent: 4135083 (1979-01-01), Van Alem et al.
patent: 4298245 (1981-11-01), Aulich
patent: 4337531 (1982-06-01), Willemson
patent: 4510544 (1985-04-01), Lazzari
patent: 4539519 (1985-09-01), Ulrich et al.
patent: 4581529 (1986-04-01), Gordon
patent: 4609871 (1986-09-01), Bobb
patent: 4626679 (1986-12-01), Kuwayama et al.
patent: 4633450 (1986-12-01), Gueugnon
patent: 4683421 (1987-07-01), Miller et al.
patent: 4740951 (1988-04-01), Lizet et al.
patent: 4796226 (1989-01-01), Valette
patent: 4799210 (1989-01-01), Wilson et al.
patent: 4806885 (1989-02-01), Morimoto
patent: 4847823 (1989-07-01), Lindow
patent: 4866372 (1989-09-01), Aoshima et al.
patent: 4866694 (1989-09-01), Korth
patent: 4893207 (1990-01-01), Maury et al.
patent: 4945400 (1990-07-01), Blonder et al.
patent: 4955006 (1990-09-01), Fukushima et al.
patent: 5004326 (1991-04-01), Sasaki
patent: 5033043 (1991-07-01), Hayakawa
patent: 5034679 (1991-07-01), Henderson et al.
patent: 5039220 (1991-08-01), Arditty et al.
patent: 5099470 (1992-03-01), Matsubayashi
patent: 5105408 (1992-04-01), Lee et al.
patent: 5111326 (1992-05-01), Ball
patent: 5119361 (1992-06-01), Tanabe
patent: 5124961 (1992-06-01), Yamaguchi et al.
patent: 5135295 (1992-08-01), Jen et al.
patent: 5137359 (1992-08-01), Steele
patent: 5152597 (1992-10-01), Barnard
patent: 5191387 (1993-03-01), Ichikawa
patent: 5199090 (1993-03-01), Bell
patent: 5212583 (1993-05-01), Vali et al.
patent: 5218582 (1993-06-01), Marchant
patent: 5229834 (1993-07-01), Lequime
patent: 5233578 (1993-08-01), Yamamoto et al.
patent: 5245491 (1993-09-01), Horie et al.
patent: 5296988 (1994-03-01), Fujino
patent: 5311360 (1994-05-01), Bloom et al.
patent: 5325116 (1994-06-01), Sampsell
patent: 5351229 (1994-09-01), Brezoczky et al.
patent: 5383048 (1995-01-01), Seaver
patent: 5432763 (1995-07-01), Campbell et al.
patent: 5446574 (1995-08-01), Djupsjobacka
patent: 5477323 (1995-12-01), Andrews et al.
patent: 5483607 (1996-01-01), O'Keefe
patent: 5493220 (1996-02-01), Oliver et al.
patent: 5521999 (1996-05-01), Chung et al.
patent: 5536926 (1996-07-01), Ikeda et al.
patent: 5625483 (1997-04-01), Swartz
patent: 5689480 (1997-11-01), Kino
patent: 5719677 (1998-02-01), Guerra
patent: 5719832 (1998-02-01), Kataoka et al.
patent: 5737302 (1998-04-01), Kasahara
patent: 5742419 (1998-04-01), Dickensheets et al.
patent: 5825743 (1998-10-01), Alon
patent: 5850375 (1998-12-01), Wilde et al.
patent: 5903525 (1999-05-01), McDaniel et al.
Patent Abstracts of Japan Publication No. 62177738.
Patent Abstracs of Japan Publication No. 62099938.
Patent Abstracts of Japan Publication No. 59056239.
Patent Abstracts of Japan Publication No. 61063946.
Daneman, et al. "Laser-to-Fiber Coupling Module Using a Micromachined Alignment Mirror", IEEE Photonics Technology Letters, vol. 8, No. 3, Mar. 1996, pp. 396-398.
Boysel, et al., "Integration of Deformable Mirror Devices with Optical Fibers and Waveguides", SPIE vol. 1793, Integrated Optics and Microstructures (1992), pp. 34-39.
Barnes, et al. "Use of optical fiber heads for optical disks," Applied Optics vol. 25, No. 22 Nov. 1986 pp. 4010-4012.
Garvey, et al. "Single-Mode Nonlinear-Optical Polymer Fibers" J. Optical Society Am. B. vol. 13 No. 9 Sep. 1996 pp. 2017-2023
3M Corp. Introduction to Polarization Maintaining Fibers 3M Specialty Fiber Sales Publication 78-6900-3455-4 rev. A 1995.
K.S. Lau, Engineering Laboratory Notes insert to Aug. 1996 Issue of Optics and Photonics News (OPN) "An economical piezoelctric phase modulator for fiber optic sensors".
Opsasnick, et al. "Optical Fibers for Magneto-Optical recording," SPIE vol. 1499 1991 pp. 276-280.
Renard et al., "Magneto Optical Reading and Writing Integrated Heads . . . " SPIE vol. 1499 pp. 238-247.
Heanue John F
Hurst, Jr. Jerry E.
Jerman John H.
Wilde Jeffrey P.
Chu Kim-Kwok
Dinh Tan
Seagate Technology Inc.
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