Issued Patents All Time
Showing 51–75 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6005887 | Despreading of direct sequence spread spectrum communications signals | Gregory E. Bottomley, Rajaram Ramesh, Paul W. Dent | 1999-12-21 |
| 5995533 | Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics | Amer A. Hassan, John Erik Hershey | 1999-11-30 |
| 5991331 | System for improving the quality of a received radio signal | Gregory E. Bottomley, Paul W. Dent | 1999-11-23 |
| 5968199 | High performance error control decoder | Ali S. Khayrallah, Raymond L. Toy | 1999-10-19 |
| 5933763 | Circuitry and method for improved signal reception acknowledgment in a radio communication system | Eric Wang, Kumar Balachandran, Amer A. Hassan | 1999-08-03 |
| 5930718 | Apparatus and method for transmitting and receiving a signaling message in a communication system | Nils Rydbeck | 1999-07-27 |
| 5918174 | Circuitry and method for initiating communication between communication stations of a radio communication system | Yi-Pin Eric Wang, Kumar Balachandran | 1999-06-29 |
| 5909465 | Method and apparatus for bidirectional demodulation of digitally modulated signals | Gregory E. Bottomley, Paul W. Dent, Ravinder D. Koilpillai | 1999-06-01 |
| 5905742 | Method and apparauts for symbol decoding | Ravinder D. Koilpillai, John B. Anderson | 1999-05-18 |
| 5838267 | Method and apparatus for encoding and decoding digital information | Yi-Pin Eric Wang, Paul W. Dent, Kumar Balachandran | 1998-11-17 |
| 5835480 | Circuitry and method for simultaneously transmitting voice and data information | — | 1998-11-10 |
| 5822310 | High power short message service using broadcast control channel | Nils Rydbeck, Amer A. Hassan, Paul W. Dent | 1998-10-13 |
| 5809141 | Method and apparatus for enabling mobile-to-mobile calls in a communication system | Paul W. Dent, Rajaram Ramesh, Stanley Reinhold | 1998-09-15 |
| 5752204 | Antenna assembly for radiotelephonic device | Darrell G. Epperson, Peter D. Karabinis | 1998-05-12 |
| 5745578 | Apparatus and method for secure communication based on channel characteristics | Amer A. Hassan, John Erik Hershey | 1998-04-28 |
| 5691980 | Local communication network for power reduction and enhanced reliability in a multiple node tracking system | Kenneth Brakeley Welles, II, Jerome J. Tiemann, Harold Woodruff Tomlinson, Jr. | 1997-11-25 |
| 5661724 | Satellite diversity scheme | Amer A. Hassan, Barbara Molnar, Karl Molnar, Rajaram Ramesh | 1997-08-26 |
| 5604806 | Apparatus and method for secure radio communication | Amer A. Hassan, John Erik Hershey | 1997-02-18 |
| 5577068 | Generalized direct update viterbi equalizer | Gregory E. Bottomley, Paul W. Dent, R. David Koilpillai | 1996-11-19 |
| 5488635 | Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation | Ravinder D. Koilpillai, Raymond L. Toy | 1996-01-30 |
| 5467374 | Low complexity adaptive equalizer for U.S. digital cellular radio receivers | Paul W. Dent, Ravinder D. Koilpillai, Raymond L. Toy | 1995-11-14 |
| 5465271 | Post detection weighted vector combining diversity receivers using phase metrics for mobile and indoor radio channels | Stephen Michael Hladik | 1995-11-07 |
| 5406593 | Adaptive phase-locked loop employing channel state information estimation from received signal phase angles | Ravinder D. Koilpillai, Raymond L. Toy | 1995-04-11 |
| 5400362 | Double sided slot traversing decoding for time division multiple access (TDMA) radio systems | Raymond L. Toy, Ravinder D. Koilpillai | 1995-03-21 |
| 5371471 | Low complexity adaptive equalizer radio receiver employing direct reference state updates | Ravinder D. Koilpillai, Raymond L. Toy | 1994-12-06 |