Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699045 | Electronic article surveillance system with cancellation of interference signals | Thomas J. Frederick, Steven Goodrich | 1997-12-16 |
| 5673024 | Electronic article surveillance system with comb filtering by polyphase decomposition and nonlinear filtering of subsequences | Thomas J. Frederick | 1997-09-30 |