Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771769 | Method and apparatus for active reduction of speakerphone singing | Robert Raymond Miller, II | 2004-08-03 |
| 6707886 | Method and system for testing subscriber loops using touchtone telephone signals | Maura Elizabeth Marcus, Robert Raymond Miller, II, Christopher W. Rice | 2004-03-16 |