公开(公告)号：CA1321423C

公开(公告)日：1993-08-17

申请号：CA590302

申请日：1989-02-07

Applicant: SYQUEST TECHNOLOGY

Inventor： COUSE ROBERT F ,  MERCER PATRICK G

IPC: G11B19/04 ,  G11B21/12 ,  G11B21/22 ,  G11B5/54 ,  G11B21/02

Abstract: HEAD LOADING VELOCITY CONTROL Inventors: Robert F. Couse Patrick G. Mercer A disc drive 22 having a head 28 actuated by an actuator 27 includes a head loading velocity control for successfully and accurately loading the head 28 onto a disc 26 so as not to cause damage to the head 28 or the disc 26. S2:16 SYQU6406/SRM

公开(公告)号：AT116469T

公开(公告)日：1995-01-15

申请号：AT89902847

申请日：1989-01-25

Applicant: SYQUEST TECHNOLOGY

Inventor： COUSE ROBERT F ,  MERCER PATRICK G

IPC: G11B21/08 ,  G11B21/10

Abstract: A disc drive 22 having a head 26 actuated by an actuator 32 for seeking out a destination track 30 includes servo velocity control circuitry 51 and servo position control circuitry 41. The servo velocity control circuitry 51 seeks out the destination track and places the head within the boundaries of that track while the servo position control circuitry 41 using servo information places the head on the centerline of the destination track. The fine servo control circuitry 20 is provided for communicating the information generated by the servo position control circuitry 41 to the servo velocity circuitry 51 when the head 26 is several tracks from the destination track in order to allow the actuator 32 to smoothly and quickly cause the head to seek within the boundaries of the destination track without overshooting that track.

公开(公告)号：AT110488T

公开(公告)日：1994-09-15

申请号：AT89902450

申请日：1989-01-25

Applicant: SYQUEST TECHNOLOGY

Inventor： COUSE ROBERT F ,  MERCER PATRICK G

IPC: G11B19/04 ,  G11B21/12 ,  G11B21/22

Abstract: A disc drive 22 having a head 28 actuated by an actuator 27 includes a head loading velocity control for successfully and accurately loading the head 28 onto a disc 26 so as not to cause damage to the head 28 or the disc 26.

公开(公告)号：AU3191589A

公开(公告)日：1989-10-05

申请号：AU3191589

申请日：1989-01-25

Applicant: SYQUEST TECHNOLOGY

Inventor： COUSE ROBERT F ,  MERCER PATRICK G

IPC: G11B21/08 ,  G11B21/10

Abstract: A disc drive 22 having a head 26 actuated by an actuator 32 for seeking out a destination track 30 includes servo velocity control circuitry 51 and servo position control circuitry 41. The servo velocity control circuitry 51 seeks out the destination track and places the head within the boundaries of that track while the servo position control circuitry 41 using servo information places the head on the centerline of the destination track. The fine servo control circuitry 20 is provided for communicating the information generated by the servo position control circuitry 41 to the servo velocity circuitry 51 when the head 26 is several tracks from the destination track in order to allow the actuator 32 to smoothly and quickly cause the head to seek within the boundaries of the destination track without overshooting that track.

公开(公告)号：CA1319980C

公开(公告)日：1993-07-06

申请号：CA590284

申请日：1989-02-07

Applicant: SYQUEST TECHNOLOGY

Inventor： COUSE ROBERT F ,  MERCER PATRICK G

IPC: G11B21/08 ,  G11B21/10

Abstract: DISC DRIVE FINE SERVO VELOCITY CONTROL AND METHOD FOR HEAD POSITIONING RELATIVE TO A DISC Inventors: Robert F. Couse Patrick G. Mercer A disc drive 24 having a head 26 actuated by an actuator 32 for seeking out a destination track 30 includes servo velocity control circuitry 51 and servo position control circuitry 41. The servo velocity control circuitry 51 seeks out the destination track and places the head within the boundaries of that track while the servo position control circuitry 41 using servo information places the head on the centerline of the destination track. The fine servo control circuitry 20 is provided for communicating the information generated by the servo position control circuitry 41 to the servo velocity circuitry 51 when the head 26 is several tracks from the destination track in order to allow the actuator 32 to smoothly and quickly cause the head to seek within the boundaries of the destination track without overshooting that track. S2:12 SYQU6399/SRM

公开(公告)号：AU3055489A

公开(公告)日：1989-10-05

申请号：AU3055489

申请日：1989-01-25

Applicant: SYQUEST TECHNOLOGY

Inventor： COUSE ROBERT F ,  MERCER PATRICK G

IPC: G11B19/04 ,  G11B21/12 ,  G11B21/22 ,  G11B21/02 ,  G11B5/54

Abstract: A disc drive 22 having a head 28 actuated by an actuator 27 includes a head loading velocity control for successfully and accurately loading the head 28 onto a disc 26 so as not to cause damage to the head 28 or the disc 26.