Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6424441 | Method and apparatus for sensing an audio signal that is sensitive to the audio signal and insensitive to background noise | Kenneth S. Walley, James W. Johnston, P. Michael Henderson, Kelly H. Hale, Warner B. Andrews, Jr. +1 more | 2002-07-23 |
| 6400968 | System and method for extending the range of a base unit | Warner B. Andrews, Jr., P. Michael Henderson, James W. Johnston, Kenneth S. Walley | 2002-06-04 |
| 6396881 | Minimum-delay frequency-shift-compensating complex demodulator with arbitrary phase adjustment | — | 2002-05-28 |
| 6353413 | Multi-function universal controller and locator systems | Kenneth S. Walley, James W. Johnston, P. Michael Henderson, Kelly H. Hale, Warner B. Andrews, Jr. +1 more | 2002-03-05 |