Issued Patents All Time
Showing 26–50 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7750694 | Power on reset circuitry for manufacturability and security using a fuse | — | 2010-07-06 |
| 7642831 | Phase shift circuit with lower intrinsic delay | — | 2010-01-05 |
| 7583102 | Testing of input/output devices of an integrated circuit | Tuyet Ngoc Simmons, Andrew W. Lai, Randy J. Simmons, Shankar Lakkapragada | 2009-09-01 |
| 7479805 | Programmable differential signaling system | Shi-dong Zhou, Gubo Huang, Ronald L. Cline | 2009-01-20 |
| 7372679 | Method and apparatus for RC triggered electrostatic discharge power clamp with hysteresis | Fu-Hing Ho, Patrick J. Crotty | 2008-05-13 |
| 7317333 | Large loading split I/O driver with negligible crowbar | Shi-dong Zhou | 2008-01-08 |
| 7279982 | Apparatus and method for low current differential swing I/O interface | Shi-dong Zhou, Gubo Huang | 2007-10-09 |
| 7265586 | Programmable differential signaling system | Shi-dong Zhou, Gubo Huang, Ronald L. Cline | 2007-09-04 |
| 7236557 | Counter-based clock multiplier circuits and methods | — | 2007-06-26 |
| 7233184 | Method and apparatus for a configurable latch | — | 2007-06-19 |
| 7157953 | Circuit for and method of employing a clock signal | — | 2007-01-02 |
| 7139361 | Counter-based digital frequency synthesizer circuits and methods | — | 2006-11-21 |
| 7071738 | Glitchless clock selection circuit using phase detection switching | Shi-dong Zhou | 2006-07-04 |
| 7053687 | Binary hysteresis comparator circuits and methods | — | 2006-05-30 |
| 7005900 | Counter-based clock doubler circuits and methods with optional duty cycle correction and offset | — | 2006-02-28 |
| 6995584 | Power-up and enable control circuits for interconnection arrays in programmable logic devices | Shankar Lakkapragada | 2006-02-07 |
| 6980035 | Auto-detect level shifter for multiple output voltage standards | Shi-dong Zhou, Gubo Huang, Shankar Lakkapragada, Fariba Farahanchi | 2005-12-27 |
| 6960937 | Power-up and enable control circuits for interconnection arrays in programmable logic devices | — | 2005-11-01 |
| 6958679 | Binary hysteresis equal comparator circuits and methods | — | 2005-10-25 |
| 6924684 | Counter-based phase shifter circuits and methods with optional duty cycle correction | — | 2005-08-02 |
| 6914460 | Counter-based clock doubler circuits and methods | — | 2005-07-05 |
| 6906571 | Counter-based phased clock generator circuits and methods | — | 2005-06-14 |
| 6906562 | Counter-based clock multiplier circuits and methods | — | 2005-06-14 |
| 6879202 | Multi-purpose digital frequency synthesizer circuit for a programmable logic device | — | 2005-04-12 |
| 6853698 | Ripple counter circuits and methods providing improved self-testing functionality | — | 2005-02-08 |