Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608896 | Efficient digital ITU-compliant zero-buffering DTMF detection using the non-uniform discrete Fourier transform | Matthew D. Felder, Brian Evans | 2003-08-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608896 | Efficient digital ITU-compliant zero-buffering DTMF detection using the non-uniform discrete Fourier transform | Matthew D. Felder, Brian Evans | 2003-08-19 |