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Class Information
Number: 360/75
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head
Description: Subject matter including controlling head position.

Sub-classes under this class:

Class Number Class Name Patents
360/76 Azimuth or skew 205
360/77.01 Track centering 179
360/78.01 Track changing 58

Patents under this class:

Patent Number Title Of Patent Date Issued
8711511 Vibration disturbance estimation and control Apr. 29, 2014
8711510 Harmonic sensor Apr. 29, 2014
8711508 Contact detection between a disk and magnetic head Apr. 29, 2014
8711506 Disk drive increasing capacity by adjusting a servo gate during write operations Apr. 29, 2014
8705199 Methods, systems and apparatus for reducing the effects of tape dimensional stability Apr. 22, 2014
8705197 Information processing apparatus, protection method and medium storing protection program Apr. 22, 2014
8693133 Systems and methods for improving sequential data rate performance using sorted data zones for butterfly format Apr. 8, 2014
8693132 Actuator arm unlatching Apr. 8, 2014
8693131 Writing and reading user data using servo spirals Apr. 8, 2014
8693130 Magnetic disk device and control method thereof, and information processor Apr. 8, 2014
8693128 Apparatus and method for writing data to tape medium Apr. 8, 2014
8693126 Ultra fast disk access using arrays of fixed read/write transducers Apr. 8, 2014
8687943 Readout apparatus, readout method, and recording method Apr. 1, 2014
8687313 Disk drive mapping out data tracks to avoid thermal asperities Apr. 1, 2014
8687312 Edge detection for disk drives Apr. 1, 2014
8687308 Zone servo write with multi-frequency self-spiral write Apr. 1, 2014
8687302 Reference voltage circuit for adaptive power supply Apr. 1, 2014
8681450 Writing spirals based on servo tracks of a different sample rate Mar. 25, 2014
8681449 Calibrating servos Mar. 25, 2014
8681442 Disk drive comprising extended range head proximity sensor Mar. 25, 2014
8675299 Head radial positioning over contact-start-stop zone during spin-up/spin-down of disk Mar. 18, 2014
8674644 Motor drive circuit Mar. 18, 2014
8670206 Disk drive estimating repeatable runout of reference pattern based on repeatable runout of phase error Mar. 11, 2014
8670205 Hybrid drive changing power mode of disk channel when frequency of write data exceeds a threshold Mar. 11, 2014
8665549 Method for creating burst magnitude servo patterns with unipolar bits on a magnetic media of a magnetic data recording system Mar. 4, 2014
8665548 Magnetic recording device and magnetic recording method Mar. 4, 2014
8665547 Disk drive multiplexing read signal and fly height signal to a transmission line Mar. 4, 2014
8654482 Dual stage actuator suspension having a single microactuator and employing pseudo symmetry to achieve suspension balance Feb. 18, 2014
8654467 Disk drive increasing bandwidth of cutoff filter while reading servo sector preamble Feb. 18, 2014
8654466 Calculation of head media separation (HMS) from servo preamble in a hard disk drive Feb. 18, 2014
8653824 Delta temperature test method and system Feb. 18, 2014
8649667 Recording/reproducing device Feb. 11, 2014
8649119 Measuring variations in head-disk clearance in a hard disk drive Feb. 11, 2014
8643974 Dynamic reduction of tape stain accumulation on tape head assembly across multiple environments Feb. 4, 2014
8638649 Topographic feedforward system Jan. 28, 2014
8638521 Shingled recording apparatus and method capable of detecting drifted-off writing Jan. 28, 2014
8638520 Magnetic recording apparatus and data reading method Jan. 28, 2014
8638516 System and method for improved free fall detection Jan. 28, 2014
8638349 Head-medium contact detection using introduced heat oscillation Jan. 28, 2014
8634283 Disk drive performing in-drive spiral track writing Jan. 21, 2014
8634158 Disk drive generating feed-forward actuator compensation based on a speaker driver signal Jan. 21, 2014
8634157 Close loop method for measuring head SNR and media SNR Jan. 21, 2014
8630058 Drive apparatus, library apparatus, and control method thereof Jan. 14, 2014
8630057 In-situ contact potential measurement in hard-disk drives Jan. 14, 2014
8630056 Hybrid drive adjusting spin-up profile based on cache status of non-volatile semiconductor memory Jan. 14, 2014
8630055 Systems and methods for medium contact detection Jan. 14, 2014
8630052 Disk drive calibrating radial density then adjusting linear density to balance off-track read capability Jan. 14, 2014
8625231 Adjusting VGA analog gain for misaligned servo sectors in a disk drive Jan. 7, 2014
8625229 Servo control in a patterned-media magnetic recording disk drive using a reference table Jan. 7, 2014
8625228 Method and system for compensating for track squeeze Jan. 7, 2014

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