| 9628104 |
High resolution sigma delta modulator for capacitance sensor terminal displacement measurement |
John P. Schulte |
2017-04-18 |
| 7495451 |
Terminal leakage monitoring for field devices |
Terrance F. Krouth, Kris Allen Wendorf |
2009-02-24 |
| 7324029 |
Capacitance-to-digital interface circuit for differential pressure sensor |
— |
2008-01-29 |
| 7319421 |
Foldback free capacitance-to-digital modulator |
— |
2008-01-15 |
| 7236113 |
Capacitance-to-digital modulator with sensor failure-mode detection |
— |
2007-06-26 |
| 6834258 |
Field transmitter with diagnostic self-test mode |
John P. Schulte |
2004-12-21 |
| 6768319 |
Adaptive compensation of measurement error for industrial process control transmitters |
— |
2004-07-27 |
| 6720777 |
Bridged capacitor sensor measurement circuit |
— |
2004-04-13 |
| 6684711 |
Three-phase excitation circuit for compensated capacitor industrial process control transmitters |
— |
2004-02-03 |
| 6516672 |
Sigma-delta analog to digital converter for capacitive pressure sensor and process transmitter |
— |
2003-02-11 |
| 6509746 |
Excitation circuit for compensated capacitor industrial process control transmitters |
— |
2003-01-21 |
| 5621802 |
Apparatus for eliminating acoustic oscillation in a hearing aid by using phase equalization |
Ramesh Harjani |
1997-04-15 |