Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263073 | Method of improving the CAS tone signal detection of a telephone and the apparatus therefor | Zhen-Xing Lai, Bang-Hua Mao, Jiang Gao | 2001-07-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263073 | Method of improving the CAS tone signal detection of a telephone and the apparatus therefor | Zhen-Xing Lai, Bang-Hua Mao, Jiang Gao | 2001-07-17 |