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Class Information
Number: 360/78.07
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head > Track changing > For rotary carrier (e.g., disc) > Specified velocity pattern during access > Controlled by memory device
Description: Subject matter having a signal storage device which is used to generate a transducer head velocity control signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7420764 |
Servo controller method and apparatus for high tracks per inch hard disk drives using a delay accomodating state estimator |
Sep. 2, 2008 |
| 7388726 |
Dynamically adjustable head disk spacing slider using thermal expansion |
Jun. 17, 2008 |
| 7342741 |
Disk drive with variable track density |
Mar. 11, 2008 |
| 7289290 |
Method of controlling track seek servo in disk drive and apparatus therefor |
Oct. 30, 2007 |
| 7259933 |
Velocity control system for an actuator assembly |
Aug. 21, 2007 |
| 7215503 |
Time linear arrival for velocity mode seeks |
May. 8, 2007 |
| 7158334 |
Method and apparatus for head positioning control with disturbance compensation in a disk drive |
Jan. 2, 2007 |
| 7136256 |
Head positioning control method for a storage device and head positioning control device |
Nov. 14, 2006 |
| 7136258 |
Rotational recording apparatus and control method |
Nov. 14, 2006 |
| 7116515 |
Method and apparatus for compensating for torque change in seek servo |
Oct. 3, 2006 |
| 7082010 |
Method and apparatus for reducing seek acoustics in a disk drive using feedback during large current transitions |
Jul. 25, 2006 |
| 7061714 |
Disk drive modifying estimated seek times for a rotational position optimization algorithm based on change in estimated seek time parameter |
Jun. 13, 2006 |
| 7031095 |
Servo controller method and apparatus for high tracks per inch hard disk drives using a delay accomodating state estimator |
Apr. 18, 2006 |
| 6995946 |
Temperature compensation of seek profiles in data storage devices |
Feb. 7, 2006 |
| 6940684 |
Disk device and seek control method |
Sep. 6, 2005 |
| 6927935 |
Method and apparatus for head positioning using servo control in a disk drive |
Aug. 9, 2005 |
| 6909576 |
Method, system, and program for generating control signals to perform a seek operation |
Jun. 21, 2005 |
| 6907499 |
Interrupting disc write operations to service read commands |
Jun. 14, 2005 |
| 6903897 |
Performance of a rotary actuator in a disk drive |
Jun. 7, 2005 |
| 6898039 |
Positioning control device for two-stage actuator |
May. 24, 2005 |
| 6879460 |
Magnetic recording disk drive |
Apr. 12, 2005 |
| 6873490 |
Control object positioning using jerk, current and time optimized control profiles |
Mar. 29, 2005 |
| 6850386 |
Control object positioning using an optimum jerk profile to reduce excitation of mechanical resonances |
Feb. 1, 2005 |
| 6850385 |
Repeated servo runout error compensation in a disc drive |
Feb. 1, 2005 |
| 6831809 |
Rotary recording apparatus and method of controlling the apparatus |
Dec. 14, 2004 |
| 6809491 |
Positioning control method |
Oct. 26, 2004 |
| 6809896 |
Power-efficient seek operations in hard disk drive |
Oct. 26, 2004 |
| 6801384 |
Voltage-constrained sinusoidal seek servo in hard disk drives |
Oct. 5, 2004 |
| 6791785 |
Disk drive with efficient coil temperature estimation |
Sep. 14, 2004 |
| 6768610 |
Microactuator servo system in a disc drive |
Jul. 27, 2004 |
| 6762571 |
Sinusoidal feed-forward seek with adaptive acoustic level constraint |
Jul. 13, 2004 |
| 6754036 |
Automated tuning of disc drive seek profile |
Jun. 22, 2004 |
| 6744590 |
Seek trajectory adaptation in sinusoidal seek servo hard disk drives |
Jun. 1, 2004 |
| 6738220 |
Servo settling by utilization of a bias torque offset value which depends on the memory of previous seek operations |
May. 18, 2004 |
| 6728061 |
Head position control method, control device for disk device and disk device |
Apr. 27, 2004 |
| 6724564 |
Seek distance dependent variable max VCM seek current to control thermal rise in VCM's |
Apr. 20, 2004 |
| 6704159 |
Automatic acoustic management system for a disc drive |
Mar. 9, 2004 |
| 6690529 |
Disk storage device and parameter transfer method |
Feb. 10, 2004 |
| 6687081 |
Disk drive using seek profile to enhance fly height control |
Feb. 3, 2004 |
| 6674606 |
Method and apparatus to normalize the acceleration constant |
Jan. 6, 2004 |
| 6636377 |
Method of tuning feed-forward control in a disk drive |
Oct. 21, 2003 |
| 6628579 |
Storage apparatus |
Sep. 30, 2003 |
| 6624964 |
Method and apparatus for reducing seek acoustics in disk drives for AV systems |
Sep. 23, 2003 |
| 6600699 |
Apparatus for searching of recorded information |
Jul. 29, 2003 |
| 6590735 |
Continuously adaptive seek deceleration profiling |
Jul. 8, 2003 |
| 6580581 |
Recovery of lateral position of a servo system with respect to longitudinal servo bands of a magnetic tape |
Jun. 17, 2003 |
| 6578106 |
Data storage system adapted to select an operational state with corresponding performance levels and acoustic noise levels based on a system profile |
Jun. 10, 2003 |
| 6560658 |
Data storage device with quick and quiet modes |
May. 6, 2003 |
| 6549364 |
Optimization method and apparatus for a generalized fourier seek trajectory for a hard disk drive servomechanism |
Apr. 15, 2003 |
| 6545838 |
Self tuning model reference controller in a disc drive |
Apr. 8, 2003 |
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