Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6557022 | Digital signal processor with coupled multiply-accumulate units | Xufeng Chen, De Dzwo Hsu | 2003-04-29 |
| 6529850 | Apparatus and method of velocity estimation | Thomas B. Wilborn, Shimman Arvind Patel, Farrokh Abrishamkar | 2003-03-04 |
| 6496920 | Digital signal processor having multiple access registers | Qiuzhen Zou, Jian Lin | 2002-12-17 |
| 6480529 | Programmable matched filter searcher for multiple pilot searching | Ian J. Fevrier, Inyup Kang, Christopher Patrick | 2002-11-12 |
| 6425070 | Variable length instruction decoder | Qiuzhen Zou, Inyup Kang, Quaeed Motiwala, Deepu John, Li Zhang +2 more | 2002-07-23 |
| 6381569 | Noise-compensated speech recognition templates | Ning Bi | 2002-04-30 |
| 6324227 | Receiver for performing position location with efficient rotator | Inyup Kang, Qiuzhen Zou | 2001-11-27 |
| 6323805 | Data boundary aware base station assisted position location | Qiuzhen Zou, Inyup Kang | 2001-11-27 |
| 6278775 | Method and apparatus for detecting facsimile transmission | Johnny K. John | 2001-08-21 |
| 6243561 | Offline page monitoring | Brian K. Butler, Haitao Zhang, Edward G. Tiedemann, Jr., Qiuzhen Zou, Avneesh Agrawal | 2001-06-05 |
| 6233549 | Low frequency spectral enhancement system and method | Anthony Mauro | 2001-05-15 |
| 6211820 | Call maintainance during position location | Qiuzhen Zou, Brian S. Edmonston | 2001-04-03 |
| 6208292 | Position location with low tolerance oscillator | Qiuzhen Zou | 2001-03-27 |
| 6195041 | Reliable position location in memory limited environment | William R. Gardner, Avneesh Agrawal, Qiuzhen Zou, Inyup Kang | 2001-02-27 |
| 6181911 | Simplified receiver with rotator for performing position location | Qiuzhen Zou, Inyup Kang, Ian J. Fevrier | 2001-01-30 |
| 6154101 | Fast slewing pseudorandom noise sequence generator | Qiuzhen Zou, Avneesh Agrawal | 2000-11-28 |
| 5999828 | Multi-user wireless telephone having dual echo cancellers | Samir Kumar Gupta | 1999-12-07 |
| 5920834 | Echo canceller with talk state determination to control speech processor functional elements in a digital telephone system | Anthony Mauro | 1999-07-06 |
| 5903862 | Method and apparatus for detection of tandem vocoding to modify vocoder filtering | Lindsay A. Weaver, Jr., S. Katherine Lam, William R. Gardner, Paul E. Jacobs, Andrew P. DeJaco | 1999-05-11 |
| 5892816 | Method and apparatus for detecting facsimile transmission | Johnny K. John | 1999-04-06 |
| 5790632 | Method and apparatus for echo canceling accounting for companding induced quantization error | Franklin P. Antonio, Andrew P. DeJaco | 1998-08-04 |
| 5732134 | Doubletalk detection by means of spectral content | — | 1998-03-24 |
| 5687229 | Method for controlling echo canceling in an echo canceller | — | 1997-11-11 |
| 5675644 | Method and apparatus for canceling echo accounting for delay variations | — | 1997-10-07 |
| 5646991 | Noise replacement system and method in an echo canceller | — | 1997-07-08 |