Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7500018 | Efficient in-band signaling for discontinuous transmission and configuration changes in adaptive multi-rate communications systems | Stefan Håkansson, Peter Blocher, Stefan Bruhn | 2009-03-03 |
| 7328038 | Power control in mobile communication systems | Stefan Bruhn, Fredrik Jansson | 2008-02-05 |
| 7062431 | Speech analyzing stage and method for analyzing a speech signal | Hans-Gunter Hirsch, Volker Springer, Rainer Klisch | 2006-06-13 |
| 6856612 | Methods and systems for call routing and codec negotiation in hybrid voice/data/internet/wireless systems | Frode Bjelland, Frank Hundscheidt, George Vergopoulos, Jerker Widmark | 2005-02-15 |
| 6826404 | Tone signalling with TFO communication links | Eckhard Delfs, Rudolf Hoffmann, Emilian Ertel | 2004-11-30 |
| 6658381 | Methods and systems for robust frame type detection in systems employing variable bit rates | Robert Bäuml, Jesus Andonegui | 2003-12-02 |
| 6611804 | Universal TTY/TDD devices for robust text and data transmission via PSTN and cellular phone networks | Matthias Dörbecker | 2003-08-26 |
| 6466789 | Method and device for avoiding interruptions in voice transmissions | Stefan Bruhn | 2002-10-15 |
| 6345251 | Low-rate speech coder for non-speech data transmission | Fredrik Jansson, Erik Ekudden, Tomas Frankkila | 2002-02-05 |
| 6295302 | Alternating speech and data transmission in digital communications systems | Anders Danne | 2001-09-25 |
| 6163577 | Source/channel encoding mode control method and apparatus | Erik Ekudden, Jim Sundqvist, Tor Björn Minde | 2000-12-19 |
| 5982766 | Power control method and system in a TDMA radio communication system | Johan Nystrom, Stefan Bruhn, Erik Ekudden | 1999-11-09 |
| 5912923 | System for transmitting coded speech signals | Dietmar Lorenz, Rainer Dietsch | 1999-06-15 |
| 5799201 | Signal processor | Dietmar Lorenz, Harald Bauer, Rainer Dietsch | 1998-08-25 |
| 5687184 | Method and circuit arrangement for speech signal transmission | Dietmar Lorenz | 1997-11-11 |
| 5657421 | Speech signal transmitter wherein coding is maintained during speech pauses despite substantial shut down of the transmitter | Dietmar Lorenz | 1997-08-12 |
| 5602766 | Method of and device for forming the sum of a chain of products | Harald Bauer, Johannes Schuck, Dietmar Lorenz | 1997-02-11 |
| 5490136 | Method of controlling transmission on a same radio channel of variable-rate information streams in radio communication systems | Daniele Sereno, Ermanno Berruto | 1996-02-06 |
| 4889756 | Sheet-like, multilayer, laser-optical recording material | Helmut Barzynski, Heidi Benthack-Thomas, Christof Taubitz | 1989-12-26 |
| 4607362 | Method of and circuit arrangement for establishing conference connections in a switching system | Peter Vary, Rudolf Hofmann | 1986-08-19 |