Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11657829 | Adaptive noise cancelling for conferencing communication systems | Dieter Schulz, Roger Bastin, Andrew Wu, Logendra Naidoo | 2023-05-23 |
| 9544702 | Dynamic characterization of a communication device | Dieter Schulz, Chi Keung Leung, Edward Peter Gancarcik | 2017-01-10 |
| 8654967 | System for conditioning echo response of loop start trunk line | Dieter Schulz, Yonghua Fang, Renee Johnston | 2014-02-18 |
| 7817797 | Method and apparatus for detecting echo path changes in an acoustic echo canceller | Dieter Schulz, Dean Swan, Andrew Wu | 2010-10-19 |
| 7792280 | Narrow band tone detection in echo canceling system | Renee Johnston, Dieter Schulz, Jan Radecki | 2010-09-07 |
| 7738653 | Method for selecting impedance setting for loop start trunk line | Yonghua Fang, Dieter Schulz | 2010-06-15 |
| 7693276 | Method of measuring distortion and determining residue-echo threshold in loop start trunk circuits | Yonghua Fang, Renee Johnston, Dieter Schulz | 2010-04-06 |
| 7508931 | Method for detecting echo path changes in echo cancellers | Renee Johnston, Dieter Schulz, Jan Radecki | 2009-03-24 |
| 7408891 | Echo canceller employing H-register and storage register | Dieter Schulz, Jan Radecki | 2008-08-05 |
| 7215762 | Method of selecting impedance setting for loop start trunk line | Yonghua Fang, Dieter Schulz | 2007-05-08 |
| 7212628 | Echo cancellation/suppression and double-talk detection in communication paths | Dieter Schultz | 2007-05-01 |
| 7187765 | Method of capturing constant echo path information in a full duplex speakerphone using default coefficients | Xin Xu | 2007-03-06 |
| 6999582 | Echo cancelling/suppression for handsets | Dieter Schulz | 2006-02-14 |
| 6956830 | Line echo cancellation system | Dieter Schulz, Jan Radecki | 2005-10-18 |
| 6947395 | Locating network echos | Dieter Schulz | 2005-09-20 |
| 6768723 | Method of operating a full duplex speakerphone echo canceller | Rob McLeod | 2004-07-27 |