Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7330721 | Method and system for supporting non-intrusive and effective voice communication among mobile users | Randeep S. Bhatia, Jorge Lobo, Sharad Sharma | 2008-02-12 |
| 6507470 | Method and arrangement for shortening the recovery time of a line driver | Ulf Lundin | 2003-01-14 |
| 4961222 | Apparatus in a telecommunication system for supplying power to a telephone set | Arne Rydin | 1990-10-02 |
| 4853959 | Method and apparatus for feeding power to a telephone line such that for restricted battery voltage there is enabled the transmission of an undistorted speech signal | — | 1989-08-01 |