Issued Patents All Time
Showing 26–50 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7177610 | Calibrated low-noise current and voltage references and associated methods | Jeffrey W. Scott, G. Diwakar Vishakhadatta, Donald A. Kerth, G. Tyson Tuttle, Vishnu Srinivasan | 2007-02-13 |
| 7138858 | Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry | Augusto Marques, Donald A. Kerth, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle +1 more | 2006-11-21 |
| 7092675 | Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signals | Lysander Lim, Caiyi Wang, David R. Welland, Donald A. Kerth, Jeffrey W. Scott +3 more | 2006-08-15 |
| 7035611 | Apparatus and method for front-end circuitry in radio-frequency apparatus | Eric R. Garlepp, Donald A. Kerth, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle +1 more | 2006-04-25 |
| 7031683 | Apparatus and methods for calibrating signal-processing circuitry | G. Diwakar Vishakhadatta, Donald A. Kerth, Russell Croman, Jeffrey W. Scott, G. Tyson Tuttle +1 more | 2006-04-18 |
| 7024221 | Notch filter for DC offset reduction in radio-frequency apparatus and associated methods | Tod Paulus, Vishnu Srinivasan, Mark S. Spurbeck, Donald A. Kerth, Jeffrey W. Scott +2 more | 2006-04-04 |
| 6993314 | Apparatus for generating multiple radio frequencies in communication circuitry and associated methods | Lysander Lim, Caiyi Wang, David R. Welland, Donald A. Kerth, Jeffrey W. Scott +3 more | 2006-01-31 |
| 6970717 | Digital architecture for radio-frequency apparatus and associated methods | Tod Paulus, Mark S. Spurbeck, Vishnu Srinivasan, Donald A. Kerth, Jeffrey W. Scott +2 more | 2005-11-29 |
| 6819514 | Adaptive equalization and interpolated timing recovery in a sampled amplitude read channel for magnetic recording | Li Du, William G. Bliss, David E. Reed, Mark S. Spurbeck | 2004-11-16 |
| 6804497 | Partitioned radio-frequency apparatus and associated methods | Donald A. Kerth, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Srinivasan | 2004-10-12 |
| 6646822 | Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors | Tyson Tuttle, Diwakar Vishakhadatta, Jerrel P. Hein, David R. Welland, David E. Reed +4 more | 2003-11-11 |
| 6345074 | Maximum likelihood servo detector for detecting an error correcting servo code recorded on a disc storage medium | Stephen A. Turk, David E. Reed | 2002-02-05 |
| 6313961 | Method and apparatus for calibrating a synchronous read channel integrated circuit | Alan J. Armstrong, Renee E. Wallerius, Charles J. Duey | 2001-11-06 |
| 6307694 | Error signal biasing for an adaptive filter in a disk drive read channel | Li Du, Mark S. Spurbeck | 2001-10-23 |
| 6208481 | Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording | Mark S. Spurbeck, Li Du, Trent Dudley, William G. Bliss, German Feyh | 2001-03-27 |
| 6108151 | Sampled amplitude read channel for reading user data and embedded servo data from a magnetic medium | Tyson Tuttle, Diwakar Vishakhadatta, Jerrel P. Hein, David R. Welland, David E. Reed +4 more | 2000-08-22 |
| 6021011 | Synchronous read channel employing a digital center frequency setting for a variable frequency oscillator in discrete time timing recovery | Kent D. Anderson, Alan J. Armstrong, Trent Dudley, Bill R. Foland, Neal Glover +1 more | 2000-02-01 |
| 6009549 | Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization | William G. Bliss, Christopher P. Zook | 1999-12-28 |
| 6005731 | Channel quality circuit employing a test pattern generator in a sampled amplitude read channel for calibration | William R. Foland, Jr., Alan J. Armstrong, Neal Glover | 1999-12-21 |
| 6005727 | Servo decoder for decoding an error correcting servo code recorded on a disc storage medium | Christopher P. Zook, David E. Reed, Stephen A. Turk | 1999-12-21 |
| 5999355 | Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording | William G. Bliss, Li Du, Mark S. Spurbeck, German Feyh, Trent Dudley | 1999-12-07 |
| 5991107 | Sychronous read channel | Trent Dudley, Neal Glover, David R. Welland | 1999-11-23 |
| 5987634 | Channel quality circuit in a sampled amplitude read channel | William G. Bliss, William R. Foland, Jr. | 1999-11-16 |
| 5978162 | Synchronous read channel integrated circuit employing a channel quality circuit for calibration | Kent D. Anderson, Alan J. Armstrong, Trent Dudley, Bill R. Foland, Neal Glover +1 more | 1999-11-02 |
| 5966257 | Synchronous read channel integrated circuit employing discrete time timing recovery | Alan J. Armstrong, Trent Dudley, Neal Glover, Larry D. King | 1999-10-12 |