Issued Patents All Time
Showing 101–125 of 136 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643814 | Maximum transition run encoding and decoding systems | Roy D. Cideciyan, Jonathan Darrel Coker, Evangelos S. Eleftheriou, Dave James Stanek | 2003-11-04 |
| 6636562 | Unconstrained equalization method and apparatus with gain and timing bias to control runaway for direct access storage device (DASD) data channels | John Jeffrey Stephenson | 2003-10-21 |
| 6625235 | Apparatus and method for noise-predictive maximum likelihood detection | Jonathan Darrel Coker, Evangelos S. Eleftheriou, Walter Hirt | 2003-09-23 |
| 6583941 | Method and apparatus for thermal asperity recovery for word sync detection in data channels | Jonathan Darrel Coker, Todd Carter Truax, Donald Earl Vosberg | 2003-06-24 |
| 6574756 | Method and apparatus for identifying the start of a data field using a fault tolerant sync word | Gary Walker | 2003-06-03 |
| 6557124 | Method and system for encoding data for high performance error control | Roy D. Cideciyan, Jonathan Darrel Coker, Evangelos S. Eleftheriou, Todd Carter Truax | 2003-04-29 |
| 6460150 | Noise-predictive post-processing for PRML data channel | Roy D. Cideciyan, Jonathan Darrel Coker, Evangelos S. Eleftheriou | 2002-10-01 |
| 6377635 | Method and apparatus for viterbi detection of generalized partial response signals using partial matched filter and matched filter metrics | Roy D. Cideciyan, Jonathan Darrel Coker, Evangelos S. Eleftheriou, David James Stanek | 2002-04-23 |
| 6373906 | Method and apparatus for Viterbi detection of generalized partial response signals including two-way add/compare/select for improved channel speed | Roy D. Cideciyan, Jonathan Darrel Coker, Evangelos S. Eleftheriou, Allen Haar, Frank Ray Keyser, III +1 more | 2002-04-16 |
| 6313962 | Combined read and write VCO for DASD PRML channels | Joe M. Poss, David James Stanek, Peter J. Windler | 2001-11-06 |
| 6222879 | Self contained equalization method and apparatus | Roy D. Cideciyan, Jonathan Darrel Coker, Evangelos S. Eleftheriou, John Jeffrey Stephenson | 2001-04-24 |
| 6158027 | Enhanced noise-predictive maximum likelihood (NPML) data detection method and apparatus for direct access storage device (DASD) | Gregory S. Bush, Roy D. Cideciyan, Jonathan Darrel Coker, Evangelos S. Eleftheriou, David James Stanek | 2000-12-05 |
| 6104766 | Noise predictive maximum likelihood (NPML) detection methods and apparatus based thereon | Jonathan Darrel Coker, Evangelos S. Eleftheriou, Walter Hirt | 2000-08-15 |
| 6104188 | Surface analysis test defect detector for direct access storage device | Jonathan Darrel Coker, Steven M. Currie, Donald Earl Vosberg | 2000-08-15 |
| 6072368 | Phase locked loop unlock detector | Larry A. Navarro, Jr., Todd Carter Truax | 2000-06-06 |
| 6031672 | Method and apparatus for servo data pattern detection | Mark Andrew Bergquist, Jonathan Darrel Coker, Rick Allen Philpott, David James Stanek | 2000-02-29 |
| 5949831 | Method and apparatus for data detection for PRML data channels | Jonathan Darrel Coker, Evangelos S. Eleftheriou, Walter Hirt | 1999-09-07 |
| 5784010 | Method and apparatus for implementing a set rate code for data channels with alternate 9-bit code words and 8-bit code words | Jonathan Darrel Coker, David Timothy Flynn, Todd Carter Truax | 1998-07-21 |
| 5708537 | Intelligent envelope detector and method for gain control for PRML data and servo channels including polarity detection | David James Stanek | 1998-01-13 |
| 5619539 | Data detection methods and apparatus for a direct access storage device | Jonathan Darrel Coker, Francois B. Dolivo, Reto Hermann, Walter Hirt, Kevin Vannorsdel | 1997-04-08 |
| 5438460 | Asynchronous gain adjustment for PRML disk drive systems | Jonathan Darrel Coker | 1995-08-01 |
| 5426541 | Self-equalization method for partial-response maximum-likelihood disk drive systems | Jonathan Darrel Coker, Walter Hirt, David James Stanek, Mark Warne | 1995-06-20 |
| 5416806 | Timing loop method and apparatus for PRML data detection | Jonathan Darrel Coker | 1995-05-16 |
| 5396130 | Method and apparatus for adaptive chip trim adjustment | Christian J. Goetschel, Robert A. Kertis, Rick Allen Philpott, Raymond A. Richetta, Timothy J. Schmerbeck +2 more | 1995-03-07 |
| 5392295 | Error measurement circuit | Jonathan Darrel Coker | 1995-02-21 |