Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10015608 | Methods and apparatus related to protection of a speaker | Philip John Crawley, Majid Shushtarian, Earl Schreyer | 2018-07-03 |
| 9729986 | Protection of a speaker using temperature calibration | Philip John Crawley, Majid Shushtarian | 2017-08-08 |
| 9647546 | Dual-mode voltage doubling buck converter with smooth mode transition | — | 2017-05-09 |
| 9083322 | Subsonic test signal generation technique | — | 2015-07-14 |
| 8866544 | Class D pulse width modulator with dual feedback | — | 2014-10-21 |
| 8831230 | Amplifier crosstalk cancellation technique | Carmine Cozzolino | 2014-09-09 |
| 8638148 | Edge rate control | — | 2014-01-28 |
| 7821338 | Amplifier current drive reversal | — | 2010-10-26 |
| 7515310 | Programmable gain amplifier with hybrid digital/analog architecture | Seema Varma, Ha Chu Vu | 2009-04-07 |
| 7443905 | Apparatus and method for spread spectrum clock generator with accumulator | Ha Chu Vu | 2008-10-28 |
| 7236117 | Apparatus and method for ping-pong mismatch correction | Seema Varma, Ha Chu Vu, Kunhong Qu, Chungwai Benedict Ng, Nghiem Nguyen | 2007-06-26 |
| 7026866 | DC offset self-calibration system for a switching amplifier | — | 2006-04-11 |
| 6785392 | Methods and apparatus for enabling or disabling an amplifier | — | 2004-08-31 |
| 6724248 | DC offset self-calibration system for a digital switching amplifier | — | 2004-04-20 |
| 6566946 | Noise reduction scheme for operational amplifiers | — | 2003-05-20 |
| 6329876 | Noise reduction scheme for operational amplifiers | — | 2001-12-11 |
| 6127893 | Method and apparatus for controlling an audio signal level | Cary L. Delano | 2000-10-03 |
| 5912779 | Method of reading and writing data on a magnetic medium | Robert J. Strain | 1999-06-15 |
| 5644457 | Multiple gap read/write head for data storage devices | Robert J. Strain | 1997-07-01 |
| 5579352 | Simplified window de-skewing in a serial data receiver | — | 1996-11-26 |
| 5572505 | Spring starter for a hard disk drive platter assembly | — | 1996-11-05 |
| 5463655 | Single-ended pulse gating circuit | — | 1995-10-31 |
| 5426539 | Multiple gap read/write head for data storage devices | Robert J. Strain | 1995-06-20 |
| 5394079 | Current mirror with improved input voltage headroom | — | 1995-02-28 |
| 5374860 | Multi-tap digital delay line | — | 1994-12-20 |