Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5016271 | Echo canceler-suppressor speakerphone | — | 1991-05-14 |
| 5007046 | Computer controlled adaptive speakerphone | Richard Henry Erving, Robert Raymond Miller, II | 1991-04-09 |
| 4979163 | Echo suppression arrangement for an adaptive speakerphone | Richard Henry Erving, Robert Raymond Miller, II | 1990-12-18 |