Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6847241 | Delay lock loop using shift register with token bit to select adjacent clock signals | Shi-dong Zhou | 2005-01-25 |
| 6842043 | High-speed, low current level shifter circuits for integrated circuits having multiple power supplies | Shi-dong Zhou, Ronald L. Cline | 2005-01-11 |
| 6831481 | Power-up and enable control circuits for interconnection arrays in programmable logic devices | Shankar Lakkapragada | 2004-12-14 |
| 6809555 | Glitch-free digital phase detector circuits and methods with optional offset and lock window extension | — | 2004-10-26 |
| 6788120 | Counter-based duty cycle correction systems and methods | — | 2004-09-07 |
| 6744289 | Clock divider circuit with duty cycle correction and minimal additional delay | Jack Lo | 2004-06-01 |
| 6714057 | Multi-purpose digital frequency synthesizer circuit for a programmable logic device | — | 2004-03-30 |
| 6707331 | High speed one-shot circuit with optional correction for process shift | — | 2004-03-16 |
| 6683481 | Power on reset generator circuit providing hysteresis in a noisy power environment | Shi-dong Zhou | 2004-01-27 |
| 6653873 | Large loading driver circuit with high speed and low crowbar current | — | 2003-11-25 |
| 6628151 | Self-regulating high voltage ramp up circuit | Shi-dong Zhou, Gubo Huang | 2003-09-30 |
| 6600355 | Clock generator circuit providing an output clock signal from phased input clock signals | — | 2003-07-29 |
| 6566918 | Divide-by-N clock divider circuit with minimal additional delay | — | 2003-05-20 |
| 6566907 | Unclocked digital sequencer circuit with flexibly ordered output signal edges | — | 2003-05-20 |
| 6515486 | Method and structure to determine low threshold voltage and high threshold voltage | — | 2003-02-04 |
| 6501315 | High-speed flip-flop operable at very low voltage levels with set and reset capability | — | 2002-12-31 |
| 6501312 | Fast-locking DLL circuit and method with phased output clock | — | 2002-12-31 |
| 6496045 | Programmable even-number clock divider circuit with duty cycle correction and optional phase shift | — | 2002-12-17 |
| 6496044 | High-speed output circuit with low voltage capability | Hy V. Nguyen, Gubo Huang | 2002-12-17 |
| 6445228 | Programmable even-number clock divider circuit with duty cycle correction and optional phase shift | — | 2002-09-03 |
| 6373308 | Direct-measured DLL circuit and method | — | 2002-04-16 |
| 6285226 | Duty cycle correction circuit and method | — | 2001-09-04 |
| 6259283 | Clock doubler circuit and method | — | 2001-07-10 |
| 6255880 | One-shot DLL circuit and method | — | 2001-07-03 |
| 6177819 | Integrated circuit driver with adjustable trip point | — | 2001-01-23 |