| 6160490 |
Apparatus for improving the battery life of a selective call receiver |
Edgar H. Callaway, Jr., George W. Smoot |
2000-12-12 |
| 5744984 |
Driver circuit providing controllable battery overload protection |
George Drapac, Keith Jackoski, Paul J. Godfrey |
1998-04-28 |
| 5740524 |
Feed-forward RSSI assisted radio frequency amplifier power control |
Walter J. Grandfield, Wei Tan |
1998-04-14 |
| 5678223 |
Method and apparatus for an automatic frequency control receiver |
Edgar H. Callaway, Jr., Frederick Loring Kampe, James David Hughes |
1997-10-14 |
| 5649020 |
Electronic driver for an electromagnetic resonant transducer |
George McClurg, Charles W. Mooney, John M. McKee |
1997-07-15 |
| 5606731 |
Zerox-IF receiver with tracking second local oscillator and demodulator phase locked loop oscillator |
Vance H. Peterson, Edgar H. Callaway, Jr. |
1997-02-25 |
| 5604926 |
Phase locked loop circuit current mode feedback |
Vance H. Peterson, Edgar H. Callaway, Jr. |
1997-02-18 |
| 5585749 |
High current driver providing battery overload protection |
David H. Overton |
1996-12-17 |
| 5555452 |
Peak and valley signal measuring circuit using single digital-to-analog converter |
Edgar H. Callaway, Jr., James David Hughes |
1996-09-10 |
| 5471665 |
Differential DC offset compensation circuit |
James David Hughes |
1995-11-28 |
| 5463306 |
Apparatus for detecting completion of energy transfer in an inductive DC to DC converter |
James E. Berry, Barry W. Herold, Kevin L. McLaughlin, Margaret Graham-Meighan |
1995-10-31 |
| 5436594 |
Fully differential transconductance amplifier with common-mode output voltage stabilization |
James David Hughes |
1995-07-25 |
| 5252964 |
Non-contact pager programming system and a pager for use therewith |
William Tan, Pha Nguyen, Pamela A. Rakolta, Silvia M. Viteri |
1993-10-12 |
| 5125112 |
Temperature compensated current source |
Brian Patrick Lenhart, Jr. |
1992-06-23 |
| 5028861 |
Strobed DC-DC converter with current regulation |
David H. Overton |
1991-07-02 |
| 4982141 |
Driver circuit for piezoelectric transducer and electroluminescent lamp |
Silvia M. Viteri, David H. Overton |
1991-01-01 |
| 4961006 |
Inductively loaded switching transistor circuit |
David H. Overton |
1990-10-02 |
| 4929851 |
Data limiter for a radio pager |
— |
1990-05-29 |
| 4929910 |
Low current amplifier with controlled hysteresis |
David H. Overton |
1990-05-29 |
| 4908523 |
Electronic circuit with power drain control |
Gregory O. Snowden, Joan S. DeLuca |
1990-03-13 |
| 4866261 |
Data limiter having current controlled response time |
— |
1989-09-12 |
| 4845485 |
Combined radio pager/timepiece apparatus with receiver desensitization protection |
— |
1989-07-04 |
| 4843343 |
Enhanced Q current mode active filter |
— |
1989-06-27 |
| 4590394 |
Signal processing circuit with voltage clamped input |
— |
1986-05-20 |
| 4340868 |
Current mode biquadratic active filter |
— |
1982-07-20 |
