Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7953233 | Synchronous detection and calibration system and method for differential acoustic sensors | Yunhong Li, Wei Ma, Peter Kamp | 2011-05-31 |
| 7443226 | Emitter area trim scheme for a PTAT current source | Jun Wan | 2008-10-28 |
| 7385426 | Low current offset integrator with signal independent low input capacitance buffer circuit | Jun Wan | 2008-06-10 |
| 7372392 | Charge balancing method in a current input ADC | Jun Wan | 2008-05-13 |
| 7236048 | Self-regulating process-error trimmable PTAT current source | Jun Wan | 2007-06-26 |
| 7119612 | Dual-channel instrumentation amplifier | Jun Wan | 2006-10-10 |
| 7075360 | Super-PTAT current source | Jun Wan | 2006-07-11 |
| 7075353 | Clock generator circuit stabilized over temperature, process and power supply variations | Jun Wan | 2006-07-11 |
| 7015744 | Self-regulating low current watchdog current source | Jun Wan | 2006-03-21 |
| 7015732 | Power-on reset circuit with low standby current and self-adaptive reset pulse width | Jun Wan | 2006-03-21 |
| 6962436 | Digitizing temperature measurement system and method of operation | Eric D. Blom, Jun Wan, Stuart H. Urie | 2005-11-08 |
| 6957910 | Synchronized delta-VBE measurement system | Jun Wan, Gary E. Sheehan | 2005-10-25 |
| 6956411 | Constant RON switch circuit with low distortion and reduction of pedestal errors | — | 2005-10-18 |
| 6930495 | Digitizing ohmmeter system | Eric D. Blom, Jun Wan, Stuart H. Urie | 2005-08-16 |
| 6903558 | Digitizing ohmmeter system | Eric D. Blom, Jun Wan, Stuart H. Urie | 2005-06-07 |
| 6869216 | Digitizing temperature measurement system | Eric D. Blom, Jun Wan, Stuart H. Urie | 2005-03-22 |
| 6831504 | Constant temperature coefficient self-regulating CMOS current source | Eric D. Blom, Jun Wan | 2004-12-14 |
| 6831925 | Single wire interface with collision detection | Ravi Subrahmanyan, Mark L. Seiders | 2004-12-14 |
| 6750796 | Low noise correlated double sampling modulation system | Eric D. Blom, Jun Wan | 2004-06-15 |
| 6373330 | Bandgap circuit | — | 2002-04-16 |
| 6183131 | Linearized temperature sensor | Ravi Subrahmayan, Gary S. Sheehan | 2001-02-06 |
| 6147550 | Methods and apparatus for reliably determining subthreshold current densities in transconducting cells | — | 2000-11-14 |
| 5936433 | Comparator including a transconducting inverter biased to operate in subthreshold | — | 1999-08-10 |
| 5504416 | Battery charger circuit including battery temperature control | Robert A. Mammano | 1996-04-02 |
| 5321404 | Ripsaw analog-to-digital converter and method | A. Martin Mallinson, Geoffrey P. O'Donoghue, Charles H. Ayres | 1994-06-14 |