| Patent | Date |
|---|
Servo track address channel code for d=1 magnetic recording
Grant 7,126,775 - Zook October 24, 2 | 2006-10-24 |
Error correction method and apparatus
Grant 6,662,336 - Zook December 9, 2 | 2003-12-09 |
Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors
Grant 6,646,822 - Tuttle , et al. November 11, 2 | 2003-11-11 |
Cost-effective high-throughput enumerative ENDEC employing a plurality of segmented compare tables
Grant 6,574,773 - Turk , et al. June 3, 2 | 2003-06-03 |
Sampled amplitude read channel employing a post processor with a boundary error compensator which compensates for boundary error events in a split-field data sector
Grant 6,530,060 - Vis , et al. March 4, 2 | 2003-03-04 |
Error detection convolution code and post processor for correcting dominant error events of a trellis sequence detector in a sampled amplitude read channel for disk storage systems
Grant 6,516,443 - Zook February 4, 2 | 2003-02-04 |
Error correction code processor employing adjustable correction power for miscorrection minimization
Grant 6,272,659 - Zook August 7, 2 | 2001-08-07 |
Sampled amplitude read channel employing noise whitening in a remod/demod sequence detector
Grant 6,185,175 - Zook February 6, 2 | 2001-02-06 |
Error correction method and apparatus
Grant 6,125,469 - Zook , et al. September 26, 2 | 2000-09-26 |
Sampled amplitude read channel for reading user data and embedded servo data from a magnetic medium
Grant 6,108,151 - Tuttle , et al. August 22, 2 | 2000-08-22 |
Error correction and concurrent verification of a product code
Grant 6,048,090 - Zook April 11, 2 | 2000-04-11 |
Error correction processor for correcting a multi-dimensional code by generating an erasure polynomial over one dimension for correcting multiple codewords in another dimension
Grant 6,047,395 - Zook April 4, 2 | 2000-04-04 |
Error correction method and apparatus for disk drive emulator
Grant 6,018,626 - Zook January 25, 2 | 2000-01-25 |
Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization
Grant 6,009,549 - Bliss , et al. December 28, 1 | 1999-12-28 |
Servo decoder for decoding an error correcting servo code recorded on a disc storage medium
Grant 6,005,727 - Behrens , et al. December 21, 1 | 1999-12-21 |
ECC system employing a data buffer for storing codeword data and a syndrome buffer for storing error syndromes
Grant 5,996,105 - Zook November 30, 1 | 1999-11-30 |
Concurrent generation of ECC error syndromes and CRC validation syndromes in a DVD storage device
Grant 5,991,911 - Zook November 23, 1 | 1999-11-23 |
Concurrent row/column syndrome generator for a product code
Grant 5,974,580 - Zook , et al. October 26, 1 | 1999-10-26 |
Method and apparatus for efficiently processing a multi-dimensional code
Grant 5,920,578 - Zook July 6, 1 | 1999-07-06 |
Write verify method for correcting unrecoverable sectors in a disc storage system using track level redundancy
Grant 5,872,800 - Glover , et al. February 16, 1 | 1999-02-16 |
Thermal asperity compensation using multiple sync marks for retroactive and split segment data synchronization in a magnetic disk storage system
Grant 5,844,920 - Zook , et al. December 1, 1 | 1998-12-01 |
Sector and track level error correction system for disc storage systems
Grant 5,844,919 - Glover , et al. December 1, 1 | 1998-12-01 |
Coding to improve timing recovery in a sampled amplitude read channel
Grant 5,838,738 - Zook November 17, 1 | 1998-11-17 |
Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer
Grant 5,796,535 - Tuttle , et al. August 18, 1 | 1998-08-18 |
Fault tolerant sync mark detector for comparing a sign and magnitude of a detected sequence to a target sync mark in sampled amplitude magnetic recording
Grant 5,793,548 - Zook August 11, 1 | 1998-08-11 |
Minimum latency asynchronous data path controller in a digital recording system
Grant 5,761,220 - Zook June 2, 1 | 1998-06-02 |
Servo track address channel code for PR4 magnetic recording
Grant 5,737,142 - Zook April 7, 1 | 1998-04-07 |
Fault tolerant sync mark detector enabled relative to a frequency of an acquisition preamble for sampled amplitude recording
Grant 5,729,396 - Dudley , et al. March 17, 1 | 1998-03-17 |
Method and apparatus for flash burst error correction
Grant 5,727,003 - Zook March 10, 1 | 1998-03-10 |
Cyclical redundancy check method and apparatus
Grant 5,724,368 - Zook March 3, 1 | 1998-03-03 |
Method for correcting unrecoverable sectors using track level redundancy in a disc drive storage system
Grant 5,701,304 - Glover , et al. December 23, 1 | 1997-12-23 |
On-the-fly error correction using thermal asperity erasure pointers from a sampled amplitude read channel in a magnetic disk drive
Grant 5,701,314 - Armstrong , et al. December 23, 1 | 1997-12-23 |
Cyclical redundancy check method and apparatus
Grant 5,671,237 - Zook September 23, 1 | 1997-09-23 |
Error correction method and apparatus for disk drive emulator
Grant 5,668,976 - Zook September 16, 1 | 1997-09-16 |
Error correction verification method and apparatus using CRC check remainders
Grant 5,629,949 - Zook May 13, 1 | 1997-05-13 |
Filtering a read signal to attenuate secondary pulses caused by pole tips of a thin film magnetic read head
Grant 5,623,377 - Behrens , et al. April 22, 1 | 1997-04-22 |
Error correction method and apparatus
Grant 5,602,857 - Zook , et al. February 11, 1 | 1997-02-11 |
Error correction method and apparatus for headers
Grant 5,600,662 - Zook February 4, 1 | 1997-02-04 |
Multipurpose error correction calculation circuit
Grant 5,555,516 - Zook September 10, 1 | 1996-09-10 |
Method and apparatus for encoding data in a PRML class-IV digital communication channel
Grant 5,544,178 - Zook August 6, 1 | 1996-08-06 |
Burst error corrector
Grant 5,491,701 - Zook February 13, 1 | 1996-02-13 |
Finite field inversion
Grant 5,467,297 - Zook November 14, 1 | 1995-11-14 |
Predictive tape drive error correction apparatus
Grant 5,255,272 - Gill , et al. October 19, 1 | 1993-10-19 |
Dual channel helical recorder
Grant 5,142,422 - Zook , et al. August 25, 1 | 1992-08-25 |
Error correction method and apparatus
Grant 5,111,463 - Zook May 5, 1 | 1992-05-05 |
Method and apparatus for determining the coefficients of a locator polynomial
Grant 4,845,713 - Zook July 4, 1 | 1989-07-04 |
Multiple pass error correction process and apparatus for product codes
Grant 4,845,714 - Zook July 4, 1 | 1989-07-04 |
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