Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7317234 | Means of integrating a microphone in a standard integrated circuit process | Douglas G. Marsh | 2008-01-08 |
| 6864741 | Low noise resistorless band gap reference | Douglas G. Marsh | 2005-03-08 |
| 6219107 | Automatic AGC bias voltage calibration in a video decoder | Karl Renner | 2001-04-17 |
| RE35951 | CMOS voltage reference with stacked base-to-emitter voltages | Robert J. Libert | 1998-11-10 |
| 5550486 | Circuit and method for providing a known logic state at insufficient supply voltage | Frank J. Sweeney | 1996-08-27 |
| 5517149 | Gain linearity correction circuit for MOS circuits | Paul F. Ferguson, Jr., David H. Robertson | 1996-05-14 |
| 5404172 | Video signal data and composite synchronization extraction circuit for on-screen display | Eric B. Berman, William B. H. Jorden, Philip R. McLaughlin, William Posner | 1995-04-04 |
| 5331221 | Gain linearity correction for MOS circuits | Paul F. Ferguson, Jr., David H. Robertson | 1994-07-19 |
| 5311181 | Sigma delta modulator | Paul F. Ferguson, Jr., Robert Adams | 1994-05-10 |
| 5126653 | CMOS voltage reference with stacked base-to-emitter voltages | Robert J. Libert | 1992-06-30 |
| 5055843 | Sigma delta modulator with distributed prefiltering and feedback | Paul F. Ferguson, Jr., Robert Adams | 1991-10-08 |
| 5010337 | High resolution D/A converter operable with single supply voltage | Shinichi Hisano, Thomas S. Guy | 1991-04-23 |
| 4677322 | Frequency comparator circuits | Klye L. Burson, Scott O. Campbell, Ronald A. Morrison | 1987-06-30 |
| 4651133 | Method and apparatus for capacitive keyboard scanning | Wayne Allen Weise | 1987-03-17 |
| 4581545 | Schmitt trigger circuit | Richard Gale Beale | 1986-04-08 |
| 4573099 | CMOS Circuit overvoltage protection | Ronald A. Morrison | 1986-02-25 |
| 4554515 | CMOS Operational amplifier | Kyle L. Burson, Scott Early | 1985-11-19 |
| 4544878 | Switched current mirror | Richard Gale Beale | 1985-10-01 |
| 4531106 | Switched capacitor circuits | — | 1985-07-23 |
| 4492935 | Switched capacitor oscillator formed by a damped resonator with saturable feedback | Paul Fleischer, Kenneth R. Laker | 1985-01-08 |