Disk drive using an optical sensor to detect a position of...

Details Disk drive using an optical sensor to detect a position of... Disk drive using an optical sensor to detect a position of...

2007-05-08

2007-05-08

Sniezek, Andrew L. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077030

Reexamination Certificate

active

11253400

ABSTRACT:
A disk drive is disclosed comprising a disk, an actuator arm, a head coupled to the actuator arm, a base, and an optical sensor operable to detect a position of the actuator arm. The optical sensor comprises a light source that is stationary relative to the base, a plurality of light sensitive sensors positioned to receive light from the light source, and a substantially opaque element positioned between the light source and the light sensitive sensors configured to control an amount of light at least one of the plurality of light sensitive sensors detects relative to the position of the actuator arm.

REFERENCES:
patent: 3806254 (1974-04-01), Ha et al.
patent: 4516177 (1985-05-01), Moon et al.
patent: 4967291 (1990-10-01), Touchton et al.
patent: 4974109 (1990-11-01), Hoshimi et al.
patent: 5227930 (1993-07-01), Thanos et al.
patent: 5426545 (1995-06-01), Sidman et al.
patent: 5442172 (1995-08-01), Chiang et al.
patent: 5459383 (1995-10-01), Sidman et al.
patent: 5471304 (1995-11-01), Wang
patent: 5471734 (1995-12-01), Hatch et al.
patent: 5563868 (1996-10-01), Farnsworth et al.
patent: 5619387 (1997-04-01), Ottesen et al.
patent: 5666236 (1997-09-01), Bracken et al.
patent: 5831786 (1998-11-01), Boutaghou et al.
patent: 5856895 (1999-01-01), Schaenzer et al.
patent: 6052250 (2000-04-01), Golowka et al.
patent: 6054833 (2000-04-01), Takeuchi
patent: 6064540 (2000-05-01), Huang et al.
patent: 6072655 (2000-06-01), Uwabo et al.
patent: 6100623 (2000-08-01), Huang et al.
patent: 6128155 (2000-10-01), Sugawara et al.
patent: 6157522 (2000-12-01), Murphy et al.
patent: 6169382 (2001-01-01), McKenzie et al.
patent: 6310746 (2001-10-01), Hawwa et al.
patent: 6396652 (2002-05-01), Kawachi et al.
patent: 6407876 (2002-06-01), Yamaguchi et al.
patent: 6515834 (2003-02-01), Murphy
patent: 6542326 (2003-04-01), Ell et al.
patent: 6563660 (2003-05-01), Hirano et al.
patent: 6583964 (2003-06-01), Huang et al.
patent: 6603629 (2003-08-01), Tsai
patent: 6604431 (2003-08-01), Soga et al.
patent: 6614613 (2003-09-01), Huang et al.
patent: 6618217 (2003-09-01), Heaton et al.
patent: 6618218 (2003-09-01), Kadowaki et al.
patent: 6621653 (2003-09-01), Schirle
patent: 6624983 (2003-09-01), Berding
patent: 6631047 (2003-10-01), Ishizuka et al.
patent: 6674600 (2004-01-01), Codilian et al.
patent: 6690551 (2004-02-01), Shiraishi et al.
patent: 6697211 (2004-02-01), Koganezawa
patent: 6707632 (2004-03-01), Raphael et al.
patent: 6747834 (2004-06-01), Matsuyama
patent: 6791784 (2004-09-01), Edwards
patent: 6798609 (2004-09-01), Bonin et al.
patent: 6816334 (2004-11-01), Watanabe et al.
patent: 6888694 (2005-05-01), Guo et al.
patent: 6914745 (2005-07-01), Takeuchi et al.
patent: 6924958 (2005-08-01), Vigna et al.
patent: 6934117 (2005-08-01), Huang et al.
patent: 7002771 (2006-02-01), Christie et al.
patent: 2002/0054451 (2002-05-01), Moon et al.
patent: 2002/0109931 (2002-08-01), Vigna et al.
patent: 2003/0053244 (2003-03-01), Lewis
patent: 2003/0133219 (2003-07-01), Ishizuka et al.
patent: 2003/0147181 (2003-08-01), Shiraishi et al.
patent: 2004/0001280 (2004-01-01), Ikedo et al.
patent: 2004/0051993 (2004-03-01), Shin
patent: 2004/0246833 (2004-12-01), Ehrlich
patent: 2006/0119977 (2006-06-01), Zhu et al.
UDT Sensors Inc., “Non-contact optical position sensing using silicon photodetectors”, App Note No. 13, Apr. 1982, http://www.udt.com.
M. Kobayashi et al., “Multi-Sensing Servo with Carriage-Acceleration Feedback for Magnetic Disk Drives”, Proceeedings of the American Control Conference, Jun. 1998, pp. 3038-3042.
F. Y. Huang et al., “Active Damping in HDD Actuator”, IEEE Transactions on Magnetics, vol. 37, No. 2, Mar. 2001, pp. 847-849.

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