Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8588403 | Echo canceling arrangement | Stefan Barkarö | 2013-11-19 |
| 7839993 | Echo canceling arrangement | Stefan Barkarö | 2010-11-23 |
| 7801296 | xDSL-line-interface-circuit | Karl Barkaro, Bo Bokinge, Jorg Hauptmann, Karl-Mikael Johanson, Lars Karlsson | 2010-09-21 |
| 7282992 | Class D-amplifier | Karl Barkaro, Bo Bokinge, Carl-Mikael Johansson, Lars Karlsson, Andreas Wiesbauer | 2007-10-16 |
| 7221702 | Transmitter/receiver for bidirectional communications | Allan Olson | 2007-05-22 |
| 6757834 | Method and arrangement for minimizing power dissipation in a line driver | Albin Johansson, Anders Soderbarg, Tore Andre, Allan Olson | 2004-06-29 |
| 6687370 | Method and an arrangement for securing an ADSL connection | Stefan Barkarö | 2004-02-03 |
| 6636605 | Echo and distortion cancellation arrangement | Stefan Barkarö | 2003-10-21 |
| 6625175 | Method and an arrangement for securing an ADSL connection | Stefan Barkarö | 2003-09-23 |
| 6167135 | Method and apparatus for generating a ringing signal | Stefan Barkarö, Berndt Wallin, Sven Tor-Bjorn Wiklund | 2000-12-26 |
| 5734712 | Method for off-hook detection during ringing and the use of a subscriber line interface circuit for off-hook detection during ringing | — | 1998-03-31 |
| 5553132 | Method and an arrangement for generating a ringing signal | — | 1996-09-03 |