Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9843859 | Method for preprocessing speech for digital audio quality improvement | Cheah Heng Tan, Linus Francis | 2017-12-12 |
| 9640185 | Method and apparatus for enhancing the modulation index of speech sounds passed through a digital vocoder | William M. Kushner | 2017-05-02 |
| 9232376 | Concurrent voice and data service on a same digital radio channel | Thomas J. Senese, Nathanael P. Kuehner, Todd A. Leigh, Harish Natarahjan, Mark Shahaf | 2016-01-05 |
| 8743953 | Method and apparatus for adjusting video compression parameters for encoding source video based on a viewer's environment | Tyrone D. Bekiares, Allan G. Brown, Scott J. Pappas, Steven D. Tine | 2014-06-03 |
| 7564830 | System and method for terminating a voice call in any burst within a multi-burst superframe | Sanjay G. Desai, John M. Gilbert, Daniel J. McDonald, Harish Natarahjan, Alan L. Wilson | 2009-07-21 |
| 6947773 | Method and apparatus for reducing echo feedback in a communication system | Eric F. Ziolko, Gary W. Grube | 2005-09-20 |
| 6741874 | Method and apparatus for reducing echo feedback in a communication system | Eric F. Ziolko, Gary W. Grube | 2004-05-25 |
| 5970416 | Provision of distributed call handling over a plurality of network nodes | Sewim F. Ablay, Randy L. Ekl | 1999-10-19 |
| 5404404 | Method for updating encryption key information in communication units | — | 1995-04-04 |