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Class Information
Number: 360/25
Name: Dynamic magnetic information storage or retrieval > Checking record characteristics or modifying recording signal for characteristic compensation
Description: Subject matter wherein the characteristics of a particular record carrier are determined or a signal to be recorded is modified to compensate for the determined characteristics of a particular record carrier.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8711498 Magnetic reading and writing device Apr. 29, 2014
8705190 Method for determining whether defect on disk is recess or protrusion and magnetic disk drive Apr. 22, 2014
8707147 Viterbi decoder method and apparatus with RI detector in servo channel Apr. 22, 2014
8693117 Method and system for precompensation of data output Apr. 8, 2014
8681438 Storage media asperity detection Mar. 25, 2014
8675297 Media defect classification Mar. 18, 2014
8665543 Inter-track interference cancelation for shingled magnetic recording Mar. 4, 2014
8654464 Implementing magnetic defect classification using phase modulation Feb. 18, 2014
8649118 Pattern-dependent LLR manipulation Feb. 11, 2014
8638649 Topographic feedforward system Jan. 28, 2014
8630053 Systems and methods for parameter modification during data processing retry Jan. 14, 2014
8625213 Automated cluster size measurement Jan. 7, 2014
8625225 Disk drive compensating for asymmetry of magnetoresistive read element Jan. 7, 2014
8611031 Methods and devices for adaptive margining Dec. 17, 2013
8593747 Hybrid defect detection for recording channels Nov. 26, 2013
8570679 Read channel averaging Oct. 29, 2013
8542453 Inspection method and inspection apparatus of magnetic disk Sep. 24, 2013
8542454 Magnetic reading and writing device Sep. 24, 2013
8477447 Asymmetry correction in read signal Jul. 2, 2013
8456775 Systems and methods for detecting a reference pattern Jun. 4, 2013
8456774 Compensating asymmetries of signals using piece-wise linear approximation Jun. 4, 2013
8446683 Systems and methods for data pre-coding calibration May. 21, 2013
8441751 Dibit pulse extraction methods and systems May. 14, 2013
8441752 Dibit pulse extraction methods and systems May. 14, 2013
8427770 Discriminating between protrusion defects and recess defects on a disk recording medium Apr. 23, 2013
8423692 Apparatus and method to read information from an information storage medium Apr. 16, 2013
8416650 Method for detecting protrusion height of magnetic head slider having thermally assisted head Apr. 9, 2013
8411383 Systems and methods for high order asymmetry correction Apr. 2, 2013
8358479 Method and apparatus to limit DC-level in coded data Jan. 22, 2013
8358478 Method and apparatus for write precompensation in a magnetic recording system Jan. 22, 2013
8339720 Hybrid defect detection for recording channels Dec. 25, 2012
8338742 Dynamic test glide head calibration using laser adjustment Dec. 25, 2012
8331054 Asymmetry correction in read signal Dec. 11, 2012
8283741 Optimized free layer for spin torque magnetic random access memory Oct. 9, 2012
8279550 Fly height sensor control circuit Oct. 2, 2012
8259414 Magnetic recording disk having aligning pattern and method for aligning thereof Sep. 4, 2012
8239059 Access records on tape medium auxiliary memory device Aug. 7, 2012
8228627 Magnetic disk drive Jul. 24, 2012
8213103 Write synchronization in patterned magnetic media Jul. 3, 2012
8182705 Method for producing thin film magnetic head having magnetoresistive effect element May. 22, 2012
8179624 Method and apparatus for evaluating a magnetic recording medium May. 15, 2012
8169725 Hard disk drive and method for managing scratches on a disk of the hard disk drive May. 1, 2012
8164845 Method and apparatus for asymmetry correction in magnetic recording channels Apr. 24, 2012
8164846 Hybrid defect detection for recording channels Apr. 24, 2012
8159766 Data processing system having data reproduction independent of data processing Apr. 17, 2012
8149527 Systems and methods for reducing attenuation of information derived from a defective medium Apr. 3, 2012
8144412 Magnetic disk device having mechanism for detecting projections on recording medium Mar. 27, 2012
8144415 Apparatus, signal-processing circuit and device for magnetic recording system Mar. 27, 2012
8139310 Fly height sensor control circuit Mar. 20, 2012
8130462 Decoupling magneto-resistive asymmetry and offset loops Mar. 6, 2012

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