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Class Information
Number: 360/61
Name: Dynamic magnetic information storage or retrieval > General recording or reproducing > Signal switching
Description: Subject matter including specific switching elements or techniques within the information signal circuitry.

Sub-classes under this class:

Class Number Class Name Patents
360/64 Between heads in alternate engagement with medium 359
360/63 Between plural stationary heads 211
360/62 Record-reproduce 212

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8654467 Disk drive increasing bandwidth of cutoff filter while reading servo sector preamble Feb. 18, 2014
8643970 Magnetic recording apparatus and recording method of magnetic recording apparatus Feb. 4, 2014
8582226 Write delay stabilization Nov. 12, 2013
8310777 Systems and methods for reducing crosstalk between adjacent writers Nov. 13, 2012
8279545 High bandwidth data transfer to and from rotating data storage devices Oct. 2, 2012
8085492 Helicoid group switching Dec. 27, 2011
8040627 Methods and apparatus for generating a hard drive write signal Oct. 18, 2011
8040631 Servo processors that alternately control head positioning relative to sequential servo patterns Oct. 18, 2011
8027119 Vibration detection and compensation filter Sep. 27, 2011
7889452 Hard disk drive preamplifier timers and methods to calibrate hard disk drive preamplifier timers Feb. 15, 2011
7880998 Multiple writing process for magnetic bit-patterned media Feb. 1, 2011
7869158 Helicoid group switching Jan. 11, 2011
7796354 Method and apparatus for controlling data rate of a tape drive Sep. 14, 2010
7766236 Method for reading data using multi-format magnetic head Aug. 3, 2010
7755862 Apparatus for writing a magnetic layer Jul. 13, 2010
7746590 Current mirrors having fast turn-on time Jun. 29, 2010
7679854 Head switch operation for a disk drive Mar. 16, 2010
7667915 Disk drive having a head amplifier for perpendicular magnetic recording Feb. 23, 2010
7616395 Information reproduction apparatus Nov. 10, 2009
7595951 Head-specific standby modes for disk drive preamplifiers and the like Sep. 29, 2009
7502427 Asynchronous servo RRO detection employing interpolation Mar. 10, 2009
7492542 Method for storing and accessing data from a multi-controller and multi-actuator storage device Feb. 17, 2009
7466506 Magnetic recording disk drive with head positioning servo control system for disk surfaces with identical servo patterns Dec. 16, 2008
7443626 Patterned disk medium for vertical magnetic recording, and magnetic disk drive with the medium Oct. 28, 2008
7319567 Servo sector in magnetic disk drive Jan. 15, 2008
7315429 Apparatus, method and program product for a multi-controller and multi-actuator storage device Jan. 1, 2008
7308188 Audio reproducing apparatus Dec. 11, 2007
7271970 Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element Sep. 18, 2007
7251095 Method and apparatus for performing best head detection in a disk drive using reference tracks Jul. 31, 2007
7242544 Apparatus and method for applying write signals for driving a write head Jul. 10, 2007
7230784 High bandwidth data transfer to and from rotating data storage devices Jun. 12, 2007
7224135 Imposed current motor drive May. 29, 2007
7196865 Recording apparatus having discoid record mediums Mar. 27, 2007
7154691 Multi-format thinfilm head and associated methods Dec. 26, 2006
7154692 Automatic adjustment of magnetic disk protection apparatus and method according to environment Dec. 26, 2006
7133233 Disk drive with read while write capability Nov. 7, 2006
7130144 Substrate structure of disk array apparatus, disk array apparatus and disk array system Oct. 31, 2006
7126777 Disk drive with selectable power source for heater in a slider Oct. 24, 2006
7102842 Disk data storage apparatus and method using multiple head actuators Sep. 5, 2006
7092462 Asynchronous servo RRO detection employing interpolation Aug. 15, 2006
7069092 Digital audio signal filtering mechanism and method Jun. 27, 2006
7046479 Magnetic recording/reproducing device having position control May. 16, 2006
7031089 Tape head assembly Apr. 18, 2006
7023641 Recording current control method and magnetic disk drive Apr. 4, 2006
6977793 Magnetic recording disk drive with dual-stage actuator and control system with multiple controllers Dec. 20, 2005
6970316 Write head driver circuit and method for writing to a memory disk Nov. 29, 2005
6967797 Write driver circuit for driving a magnetic head Nov. 22, 2005
6940679 Method and apparatus for increasing track density by adapting write fault gate to position error signal as it varies from ID to OD Sep. 6, 2005
6927931 Magnetic disk drive and method of controlling the same Aug. 9, 2005
6903891 Photoconductive optical write driver for magnetic recording Jun. 7, 2005

1 2 3 4 5 6 7 8

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