Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597754 | Compensation of frequency pulling in a time-division duplexing transceiver | Stephen T. Janesch | 2003-07-22 |
| 6424274 | Keypad scanning with few pins | Kenneth Tallo | 2002-07-23 |
| 6307480 | Integrated circuit reset incorporating battery monitor and watchdog timer | Peter Sheldon, Alan F. Hendrickson | 2001-10-23 |
| 6272465 | Monolithic PC audio circuit | Larry D. Hewitt, Jeffrey M. Blumenthal, Geoffrey E. Brehmer, Glen W. Brown, Carlin D. Cabler +10 more | 2001-08-07 |
| 6259709 | Training preamble added to CT2 muxes in a CT2 wireless telecommunications system | Javier V. Magana, James J. Covell | 2001-07-10 |
| 6125139 | Narrowband digital cordless telephone | Alan F. Hendrickson, Jacqueline Mullins, Peter Sheldon | 2000-09-26 |
| 6118384 | Battery monitor with software trim | Peter Sheldon, Alan F. Hendrickson | 2000-09-12 |
| 6097768 | Phase detector for carrier recovery in a DQPSK receiver | Stephen T. Janesch, Alan F. Hendrickson | 2000-08-01 |
| 6075831 | FIFO and system synchronization system and method | Alan F. Hendrickson | 2000-06-13 |
| 6072842 | Carrier-recovery loop with stored initialization in a radio receiver | Stephen T. Janesch, Ed Bell | 2000-06-06 |
| 6055281 | Passband DQPSK detector for a digital communications receiver | Alan F. Hendrickson | 2000-04-25 |
| 6047036 | System and method for implementing a mute voice signal upon reception of a ADPCM zero nibble in wireless communications | — | 2000-04-04 |
| 6018556 | Programmable loop filter for carrier recovery in a radio receiver | Stephen T. Janesch | 2000-01-25 |
| 5987010 | System and method for providing FDD and TDD modes of operation for a wireless communications device | — | 1999-11-16 |
| 5978688 | Apparatus and method for protocol interface | Jacqueline Mullins, Alan F. Hendrickson | 1999-11-02 |
| 5974584 | Parity checking in a real-time digital communications system | Alan F. Hendrickson | 1999-10-26 |
| 5943373 | External protocol hooks system and method | Alan F. Hendrickson | 1999-08-24 |
| 5923704 | Transmit clock generation system and method | — | 1999-07-13 |
| 5898685 | Burst synchronization of time division multiplexed transceiver pairs | — | 1999-04-27 |
| 5663664 | Programmable drive strength output buffer with slew rate control | — | 1997-09-02 |
| 5659466 | Monolithic PC audio circuit with enhanced digital wavetable audio synthesizer | David Norris, Jeffrey M. Blumenthal, Geoffrey E. Brehmer, Glen W. Brown, Carlin D. Cabler +10 more | 1997-08-19 |
| 5541551 | Analog voltage reference generator system | Geoffrey E. Brehner | 1996-07-30 |
| 5537077 | Power supply dependent method of controlling a charge pump | — | 1996-07-16 |
| 5502409 | Clock switcher circuit | David Norris | 1996-03-26 |
| 5477172 | Configurable input buffer dependent on supply voltage | — | 1995-12-19 |