System for creating, reading and writing on rotatable informatio

Details System for creating, reading and writing on rotatable informatio System for creating, reading and writing on rotatable informatio

1998-02-13

2000-06-27

Tran, Thang V.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4438, G11B 700

Patent

active

06081487&

ABSTRACT:
An apparatus for controlling the positioning of a laser light source for reading and writing information on a form of recording blank with reference tracks utilizes the edges of the reference tracks. A laser source has its beam split in two parts. A first of these beams is used for writing, while the second of these beams is directed to a track edge across which it is moved in an oscillatory fashion by a mirror. The light reflected from the track is converted into an electrical signal which is analyzed to provide an indication of the position of the laser light source with respect to the track edge used.

REFERENCES:
patent: 3430966 (1969-03-01), Gregg
patent: 3848095 (1974-11-01), Wohlmut et al.
patent: 3946367 (1976-03-01), Wohlmut et al.
patent: 4021714 (1977-05-01), Jones et al.
patent: 4074312 (1978-02-01), van Rosmalen
patent: 4090031 (1978-05-01), Russell
patent: 4100577 (1978-07-01), Naruse et al.
patent: 4115808 (1978-09-01), Miyaoka
patent: 4164754 (1979-08-01), Dubois
patent: 4190775 (1980-02-01), Sakurai et al.
patent: 4241423 (1980-12-01), Burke et al.
patent: 4271334 (1981-06-01), Yardy
patent: 4301445 (1981-11-01), Robinson
patent: 4337531 (1982-06-01), Willemsen
patent: 4352981 (1982-10-01), Sugiyama et al.
patent: 4358774 (1982-11-01), Wilkinson
patent: 4397010 (1983-08-01), Nabeshima
patent: 4445209 (1984-04-01), Mickleson et al.
patent: 4449138 (1984-05-01), Ando
patent: 4450553 (1984-05-01), Holster et al.
patent: 4460977 (1984-07-01), Shimada et al.
patent: 4475179 (1984-10-01), Geyer
patent: 4481550 (1984-11-01), Miller et al.
patent: 4507763 (1985-03-01), Kato
patent: 4531206 (1985-07-01), Kimura
patent: 4621351 (1986-11-01), Baer et al.
patent: 4700336 (1987-10-01), Yoshida et al.
patent: 4760565 (1988-07-01), Jipson et al.
patent: 4951273 (1990-08-01), Yoshida et al.
patent: 4953151 (1990-08-01), Imanaka
patent: 4972397 (1990-11-01), Zurbrick et al.
patent: 5016233 (1991-05-01), Morimoto et al.
patent: 5022021 (1991-06-01), Ito
patent: 5029023 (1991-07-01), Bearden et al.
patent: 5031165 (1991-07-01), Fujita
patent: 5070496 (1991-12-01), Ogawa et al.
patent: 5077719 (1991-12-01), Yanagi et al.
patent: 5138529 (1992-08-01), Colton et al.
patent: 5138604 (1992-08-01), Umeda et al.
patent: 5161040 (1992-11-01), Yokoyama et al.
patent: 5231280 (1993-07-01), Imakawa
patent: 5251198 (1993-10-01), Strickler
patent: 5386409 (1995-01-01), Yokota et al.
patent: 5408453 (1995-04-01), Holtslag et al.
patent: 5436880 (1995-07-01), Eastman et al.
patent: 5473587 (1995-12-01), Hamaguchi et al.
patent: 5495466 (1996-02-01), Dohmeier et al.
patent: 5506826 (1996-04-01), Kobayashi
patent: 5511059 (1996-04-01), Brazas, Jr.
patent: 5521895 (1996-05-01), Miura et al.
patent: 5617400 (1997-04-01), Fuji
patent: 5623466 (1997-04-01), Itonaga
patent: 5638350 (1997-06-01), Fuji
patent: 5663939 (1997-09-01), Kase
patent: 5671099 (1997-09-01), Ishii et al.
patent: 5677903 (1997-10-01), Holtslag et al.
patent: 5684782 (1997-11-01), Jacobowitz et al.
patent: 5708652 (1998-01-01), Ohki et al.
patent: 5715157 (1998-02-01), Kuhn
patent: 5715218 (1998-02-01), Ikeda
patent: 5740145 (1998-04-01), Jacobowitz et al.
patent: 5754513 (1998-05-01), Yagi et al.
patent: 5757743 (1998-05-01), DeCusatis et al.
patent: 5764603 (1998-06-01), Glaser-Imbari
patent: 5768221 (1998-06-01), Kasami et al.
patent: 5777961 (1998-08-01), Matsui
patent: 5828639 (1998-10-01), Kobayashi et al.
patent: 5844871 (1998-12-01), Maezawa
patent: 5854781 (1998-12-01), Kurihara
patent: 5872723 (1999-02-01), DeCusatis et al.
patent: 5892739 (1999-04-01), DeCusatis et al.
patent: 5903537 (1999-05-01), Gage et al.

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