Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667668 | System and method for controlling the frequency output from an oscillator using an in-phase voltage | — | 2003-12-23 |
| 6323734 | Trans-impedance amplifier | Phillip J. Kruczkowski, Subhajit Sen | 2001-11-27 |
| 6307437 | MOS load, pole compensation | Phillip J. Kruczkowski | 2001-10-23 |
| 6198360 | Quadrature current frequency modulation oscillator | — | 2001-03-06 |
| 5652384 | Sensor structure with L-shaped spring legs | Raymond K. Erickson, Hubert R. Plumlee, Matthew W. Ip | 1997-07-29 |
| 5594612 | Analog-to-digital converter with digital linearity correction | — | 1997-01-14 |
| 5583501 | Digital-to-analog converter with digital linearity correction | Donald A. Kerth | 1996-12-10 |
| 5134881 | Micro-machined accelerometer with composite material springs | Matthew W. Ip | 1992-08-04 |
| 4932261 | Micro-machined accelerometer with tilt compensation | — | 1990-06-12 |
| 4922756 | Micro-machined accelerometer | — | 1990-05-08 |
| 4268814 | Solid state keyboard | Raymond K. Erickson | 1981-05-19 |