Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11990870 | Switched resistor for switched driver stage feedback loop | — | 2024-05-21 |
| 11349441 | Method and apparatus of adaptive gate bias for switched driver | — | 2022-05-31 |
| 10484005 | Method and apparatus of an acoustic energy detection circuit for a pulse density modulation microphone | — | 2019-11-19 |
| 10250996 | Method and apparatus of a switched microphone interface circuit for voice energy detection | — | 2019-04-02 |
| 10044346 | Low-power slew rate detector for edge rate control of an output power stage | — | 2018-08-07 |
| 9973178 | Method and apparatus for clock frequency multiplier | — | 2018-05-15 |
| 9735679 | Method and apparatus for a delay locked power supply regulator | — | 2017-08-15 |
| 9549248 | Method and apparatus for reducing crosstalk in an integrated headset | — | 2017-01-17 |
| 9362897 | Method and apparatus for an integrated PN-junction oscillator | — | 2016-06-07 |
| 9338570 | Method and apparatus for an integrated headset switch with reduced crosstalk noise | — | 2016-05-10 |
| 9331710 | Method and apparatus for encoding digital data into an oversampling digital to analog converter | Yao-Ching Liu | 2016-05-03 |
| 9287823 | Method and apparatus of a self-biased RC oscillator and ramp generator | — | 2016-03-15 |
| 8917143 | Method and apparatus for filter-less analog input class D audio amplifier clipping | Zhiqiang Pan, Yao-Ching Liu | 2014-12-23 |
| 8710922 | Method and apparatus for filter-less class D audio amplifier EMI reduction | — | 2014-04-29 |
| 8335328 | Programmable integrated microphone interface circuit | — | 2012-12-18 |
| 8254598 | Programmable integrated microphone interface circuit | — | 2012-08-28 |
| 8150026 | Method and system for subscriber line interface circuit | — | 2012-04-03 |
| 7957522 | Programmable plain old telephone line impedance matching circuits | — | 2011-06-07 |
| 7260212 | Method and apparatus for subscriber line control circuit | — | 2007-08-21 |
| 7197299 | Multiple message multilevel analog signal recording and playback system containing configurable analog processing functions | Geoffrey B. Jackson, Saleel V. Awsare, Lawrence D. Engh, Oliver C. Kao, Carl R. Palmer +1 more | 2007-03-27 |
| 6959279 | Text-to-speech conversion system on an integrated circuit | Geoffrey B. Jackson, Aditya Raina, Bo-Hung Wu, Chuan-Shin Rick Lin, Ming-Bing Chang +4 more | 2005-10-25 |
| 6865186 | Multiple message multilevel analog signal recording and playback system having memory array configurable for analog and digital storage and serial communication | Geoffrey B. Jackson, Saleel V. Awsare, Ming-Bing Chang, Oliver C. Kao, Hung-Chuan Pai +2 more | 2005-03-08 |
| 6348842 | Method and apparatus for achieving accurate temperature-invariant sampling frequencies in a multiple message non-volatile multilevel analog signal recording and playback system | Aditya Raina, Geoffrey B. Jackson, Saleel V. Awsare | 2002-02-19 |
| 6301161 | Programming flash memory analog storage using coarse-and-fine sequence | James Brennan, Jr., Albert Kordesch | 2001-10-09 |