GB2039078B
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1978-12-27 |
1982-11-24 |
Ibm |
Sampled data servo positioning system
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JPS55109184A
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1979-02-13 |
1980-08-22 |
Victor Co Of Japan Ltd |
Rotational speed control system
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US4384309A
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1979-02-21 |
1983-05-17 |
Pertec Computer Corporation |
Closed loop servo demodulator for positioning a servo head
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US4329721A
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1980-02-11 |
1982-05-11 |
Sperry Corporation |
Tachometer for deriving average velocity output by sampling position signal
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US4920434A
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1980-09-24 |
1990-04-24 |
Quantum Corporation |
Fixed disk drive
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1980-09-24 |
1992-06-02 |
Quantum Corporation |
Data transducer position control system for rotating disk data storage equipment
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1980-09-24 |
1987-04-21 |
Quantum Corporation |
Data transducer position control system for rotating disk data storage equipment
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1980-09-24 |
1983-05-31 |
Rca Corporation |
Video disc player with multiple signal recovery transducers
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USRE32075E
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1980-09-24 |
1986-01-28 |
Quantum Corporation |
Data transducer position control system for rotating disk data storage equipment
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1980-09-24 |
1991-01-01 |
Quantum Corporation |
Head and disk assembly for fixed disk drive
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US4381526A
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1980-11-10 |
1983-04-26 |
Memorex Corporation |
Velocity control system for a data storage apparatus
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US4620253A
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1980-12-31 |
1986-10-28 |
International Business Machines Corporation |
Low mass actuator system for magnetic recording disk
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US4532562A
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1981-04-24 |
1985-07-30 |
Iomega Corporation |
Servo control of seek operation in magnetic disk drive
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1981-04-24 |
1984-03-27 |
Iomega Corporation |
Servo control of seek operation in magnetic disk drive
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1981-07-02 |
1984-07-24 |
Irwin International, Inc. |
Method for controlling a disc head
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DE3280376D1
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1982-05-17 |
1992-01-02 |
Ibm |
Spurlagenregelung mittels servosektoren.
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1982-05-17 |
1985-10-01 |
International Business Machines Corporation |
Sector servo seek control
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1982-11-22 |
1984-12-04 |
International Business Machines Corporation |
Sliding mask variable resolution velocity trajectory for track following servo
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1982-12-20 |
1986-03-11 |
International Business Machines Corporation |
Magnetic recording disk file servo control system including an actuator model for generating a simulated head position error signal
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JPS59223939A
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1983-06-02 |
1984-12-15 |
Victor Co Of Japan Ltd |
円盤状磁気記録媒体の配向処理装置
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1983-09-21 |
1986-04-08 |
Memorex Corporation |
Disk accessing circuitry
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1983-11-28 |
1986-05-27 |
Computer Memories, Incorporated |
Disk drive head positioner with optimized seek operation
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US4685007A
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1983-12-21 |
1987-08-04 |
Computer Memories, Incorporated |
Disk drive with track zero location system
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JPS60138786A
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1983-12-27 |
1985-07-23 |
Fujitsu Ltd |
シ−ク制御回路
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1985-06-04 |
1987-12-08 |
Plus Development Corporation |
Thin and compact micro-Winchester head and disk assembly
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1985-06-05 |
1989-11-21 |
Plus Development Corporation |
Microprocessor controlled rigid disk file subsystem
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1985-06-05 |
1989-04-04 |
Plus Development Corporation |
Microprocessor controlled rigid disk file subsystem
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1986-10-14 |
1988-10-04 |
Hewlett-Packard Company |
Sampled servo seek and track follow system for a magnetic disc drive
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WO1988002913A1
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1986-10-14 |
1988-04-21 |
Maxtor Corporation |
Method and apparatus for controlling the position of a moveable head assembly
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AU8091887A
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1986-11-10 |
1988-05-12 |
Seagate Technology, Inc. |
Dual track servo system
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1987-11-23 |
1989-06-13 |
International Business Machines Corporation |
Track seeking using a track following loop
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1989-03-07 |
1992-02-18 |
International Business Machines Corporation |
Positioning systems employing velocity and position control loops with position control loop having an extended range
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JPH0378170A
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*
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1989-08-19 |
1991-04-03 |
Sony Corp |
シーク制御装置
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JP2760077B2
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1989-08-29 |
1998-05-28 |
ソニー株式会社 |
光ディスクのシーク回路
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JPH03225679A
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1990-01-31 |
1991-10-04 |
Sony Corp |
デイスクドライブ装置
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1990-03-12 |
1993-07-27 |
Fujitsu Limited |
Track access control system preventing unintentional delay in movement of head in non-adjusted disc device
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1990-05-25 |
1993-10-26 |
International Business Machines Corporation |
Single loop servo-positioning systems having means for changing the dynamic range of a position-error signal with speed of the relatively movable members
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1991-05-09 |
1995-06-20 |
Sidman; Michael D. |
Active disturbance compensation system for disk drives
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1991-07-31 |
1994-04-19 |
Seagate Technology, Inc. |
Compensating for variations in torque capability of voice coil motors
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JP2795365B2
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1992-05-28 |
1998-09-10 |
インターナショナル・ビジネス・マシーンズ・コーポレイション |
ディジタル閉ループ系制御方法およびシステム、およびそのシステムを用いたディスク型記憶装置
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JP3875294B2
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1995-11-17 |
2007-01-31 |
富士通株式会社 |
ディスク装置
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KR100194021B1
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1996-04-24 |
1999-06-15 |
윤종용 |
하드 디스크 드라이브의 반복 추종 에러 제어방법
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1998-06-05 |
2001-04-24 |
Seagate Technology Llc |
Rotational vibration detection using spindle motor velocity sense coils
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1998-06-05 |
2000-07-11 |
Seagate Technology, Inc. |
Rotational vibration detection using a velocity sense coil
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US6285522B1
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1998-06-05 |
2001-09-04 |
Seagate Technology Llc |
Rotational vibration compensation using a dedicated surface with a constant frequency pattern
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US6304406B1
(en)
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1998-06-05 |
2001-10-16 |
Seagate Technology Llc |
Rotational vibration compensation using a fixed head and a constant frequency pattern
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DE19983933T1
(de)
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1999-02-22 |
2002-01-24 |
Seagate Technology |
Kompensation für wiederholbare Auslauffehler
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DE19983952T1
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1999-05-07 |
2002-06-20 |
Seagate Technology Llc |
Kompensation wiederholbaren Auslaufens mit iterativer Lernsteuerung bei einem Plattenspeichersystem
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US6437936B1
(en)
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1999-07-23 |
2002-08-20 |
Seagate Technology Llc |
Repeatable runout compensation using a learning algorithm with scheduled parameters
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1999-11-12 |
2003-04-08 |
Acorn Technologies, Inc. |
Servo control apparatus and method using absolute value input signals
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US6952320B1
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1999-12-16 |
2005-10-04 |
Seagate Technology Llc |
Virtual tracks for repeatable runout compensation
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US6707632B1
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2000-02-08 |
2004-03-16 |
Seagate Technology Llc |
Disc drive with self-contained servo data writing capability
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2000-06-14 |
2004-02-10 |
Seagate Technology Llc |
Method and apparatus for handling multiple resonance frequencies in disc drives using active damping
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US6831804B2
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2000-06-20 |
2004-12-14 |
Seagate Technology Llc |
Method and apparatus for handling resonance effects in disc drives using active damping
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2005-01-13 |
2008-09-16 |
Wd Media, Inc. |
Method and apparatus for selectively providing data from a test head to a processor
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