loadpatents
Patent applications and USPTO patent grants for Duttweiler; Donald Lars.The latest application filed is for "echo cancellation in the network for data applications".
Patent | Date |
---|---|
Quadrature filter augmentation of echo canceler basis functions Grant 6,813,352 - Duttweiler November 2, 2 | 2004-11-02 |
Echo cancellation in the network for data applications Grant 6,628,780 - Duttweiler , et al. September 30, 2 | 2003-09-30 |
Echo Cancellation In The Network For Data Applications App 20020057790 - DUTTWEILER, DONALD LARS ;   et al. | 2002-05-16 |
Video conferencing system and method for providing enhanced interactive communication Grant 5,818,514 - Duttweiler , et al. October 6, 1 | 1998-10-06 |
Intelligent near-end speech detection Grant 5,752,229 - Duttweiler , et al. May 12, 1 | 1998-05-12 |
Echo canceler E-side speech detector Grant 5,668,865 - Duttweiler , et al. September 16, 1 | 1997-09-16 |
Quasi-pulse stuffing synchronization Grant 4,095,053 - Duttweiler , et al. June 13, 1 | 1978-06-13 |
Digital signal processing arrangement using a cascaded integrator function generator Grant 3,990,073 - Duttweiler November 2, 1 | 1976-11-02 |
Block digital processor for use with nonuniformly encoded digital words Grant 3,945,002 - Duttweiler , et al. March 16, 1 | 1976-03-16 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.