Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2005-03-29
2005-03-29
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
Reexamination Certificate
active
06873489
ABSTRACT:
Provided are a method, system, and program for estimating coil resistance of a voice coil motor for an actuator assembly in a disk drive system. An estimation is made of a calibration coil resistance during a calibration operation. A determination is made of a distance moved during a seek operation. The determined distance and the calibration coil resistance are used to estimate a current coil resistance following the seek operation.
REFERENCES:
patent: 5457402 (1995-10-01), Sato
patent: 5594603 (1997-01-01), Mori et al.
patent: 5781363 (1998-07-01), Rowan et al.
patent: 5844743 (1998-12-01), Funches
patent: 5963393 (1999-10-01), Rowan et al.
patent: 5982130 (1999-11-01), Male
patent: 6188191 (2001-02-01), Frees et al.
patent: 6216050 (2001-04-01), Ono et al.
patent: 6219196 (2001-04-01), Semba et al.
patent: 6229663 (2001-05-01), Yoneda et al.
patent: 6342985 (2002-01-01), Clare et al.
patent: 6366865 (2002-04-01), Chalupa et al.
patent: 6496319 (2002-12-01), Kusumoto et al.
patent: 6515820 (2003-02-01), Burton et al.
patent: 6594106 (2003-07-01), Serrano et al.
patent: 6600633 (2003-07-01), Macpherson et al.
“Advanced Servo-Mechanical Design Facilitates Improved Performance and Reliability”, published by IBM and available on the internet at: http://www.ibm.com/harddrive, 1999, pp. 1-4.
S. J. Hwang, “Noise and Vibration Control Technology in Hard Disk Drives”, DataTech, date unknown, pp. 99-106, downloaded from the Internet on Jan. 29, 2002.
Y. Li, et al., “Track-Following Controller Design of MEMS Based Dual-Stage Servos in Magnetic Hard Disk Drives”, Computer Mechanics Lab. Dept. of Mechanical Engineering, University of Berkeley, California, date unknown.
Lintech, “Chapter 10. Hard Disk Drives”, online, date unknown, pp. 1-20. (Retrieved on Mar. 25, 2001). Retrieved from the Internet at URL: <http://www.lintech.org/comp-per/index.html>.
Ho Peter Kui
Yu Mantle Man-Hon
Hitachi Global Storage Technologies - Netherlands B.V.
Hudspeth David
Konrad Raynes & Victor LLP
Tzeng Fred F.
Victor David W.
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