| 7385932 |
Wideband frequency domain reflectometry to determine the nature and location of subscriber line faults |
Bernardo Celaya, Terence Monteith |
2008-06-10 |
| 6886181 |
Extended distribution of ADSL signals |
Oliver Cruder, Mark Labbe |
2005-04-26 |
| 6259836 |
Optical frequency shifter and transmission system |
— |
2001-07-10 |
| 5999300 |
Hybrid single sideband optical modulator |
Robert Davies, Jan Conradi |
1999-12-07 |
| 5880870 |
Optical modulation system |
Michael Sieben, Jan Conradi |
1999-03-09 |
| 5841841 |
Networking computers via shared use of voice telephone lines |
Gregory Jacob Erker |
1998-11-24 |
| 5612653 |
LAN star connection using negative impedance for matching |
Gregory Jacob Erker |
1997-03-18 |
| 4677646 |
Dataset powered by control and data signals from data terminal |
Ludo Arden Bertsch |
1987-06-30 |
| 4578541 |
Telephone line interface circuit |
— |
1986-03-25 |
| 4534038 |
Coupling an electrical signal to transmission lines |
Ludo Arden Bertsch |
1985-08-06 |
| 4534039 |
Dataset powered by control and data signals from data terminal |
Ludo Arden Bertsch |
1985-08-06 |
| 4525845 |
Balanced circuit for connecting receiver and transmitter to transmission line |
Ludo Arden Bertsch |
1985-06-25 |