Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8867312 | Method for compressing the dynamic range of measured signals | Michael J. O'Bara, Stephen A. Caldwell | 2014-10-21 |
| 8768647 | High accuracy heading sensor for an underwater towed array | Ahmed S Zaki, Michael J. Obara, Peter A Child | 2014-07-01 |
| 8750077 | Acoustic ranging system for multi-line towed acoustic arrays | Michael J. Obara | 2014-06-10 |
| 8674824 | Sonar sensor array and method of operating same | Michael J. Obara, Stephen A. Caldwell | 2014-03-18 |
| 6718816 | Monolithic I.C. implemented calibration circuit | Thomas A. Freehill | 2004-04-13 |
| 6571598 | Calibration circuit for use with a differential input preamplifier in a sensor system | Thomas A. Freehill | 2003-06-03 |
| 6046632 | Differential calibration signal generator | — | 2000-04-04 |
| 5877612 | Amplification of signals from high impedance sources | — | 1999-03-02 |
| 5729171 | Preamplifier with adjustable input resistance | Patricia M. Eno | 1998-03-17 |
| 5724315 | Omnidirectional ultrasonic microprobe hydrophone | Mark B. Moffett, James M. Powers, Dmitry Chizhik | 1998-03-03 |
| 5339285 | Monolithic low noise preamplifier for piezoelectric sensors | — | 1994-08-16 |
| 4518915 | Test device for expendable bathythermograph set (XBT) | Philip G. Danforth, Thomas G. Bucko, Kenneth R. Galliher, Joseph T. Lucia, Richard L. Miller | 1985-05-21 |