| 9634639 |
Tunable electronic circuit which converts balanced signals to unbalanced signals |
Daniel Ramirez |
2017-04-25 |
| 9413054 |
Miniature wideband quadrature hybrid |
— |
2016-08-09 |
| 8836430 |
Wideband distributed amplifier with integral bypass |
Daniel A. Robison |
2014-09-16 |
| 7746193 |
Miniature 180 degree hybrid coupler |
Kurt W. Wampach |
2010-06-29 |
| 7741929 |
Miniature quadrature hybrid |
— |
2010-06-22 |
| 7385144 |
Method and apparatus for electrically connecting printed circuit boards or other panels |
Mitchell Percival |
2008-06-10 |
| 7038625 |
Array antenna including a monolithic antenna feed assembly and related methods |
Robert Taylor, William F. Croswell |
2006-05-02 |
| 6853687 |
Proximity-based magnetic field generator for controlling operation of RF burst-transmitting tags of geolocation system |
Timothy C. Harrington, Donald K. Belcher |
2005-02-08 |
| 6812839 |
Use of rotating magnetic field to enhance communication with RF burst-transmitting tags of object location system |
Donald K. Belcher |
2004-11-02 |
| 6721369 |
Composite BPSK/AM-BPSK based spectral suppression of out-of-band energy from saturated RF amplifier |
Donald K. Belcher |
2004-04-13 |
| 6476719 |
Ultra-sensitive magnetic field receiver capable of operating in high noise environments |
Donald K. Belcher, John A. Eisenberg, Douglas Bowman |
2002-11-05 |
| 6393045 |
Spread spectrum baseband modulation of magnetic fields for communications and proximity sensing |
Donald K. Belcher, Robert W. Boyd |
2002-05-21 |
| 6349116 |
Data communication system harnessing frequency shift keyed magnetic field |
Douglas Bowman |
2002-02-19 |
| 6268723 |
Magnetic field emission and differential receiver coil configuration for discriminating response magnetic field from transponder tag |
Donald K. Belcher, Robert W. Boyd |
2001-07-31 |
| 6170748 |
Object identification system employing pulsed magnetic field-stimulated, tag-embedded transponder |
Donald K. Belcher, Robert W. Boyd |
2001-01-09 |
| 6127976 |
Distributed network for multi-lateration with circularly polarized antenna for hemispherical coverage |
Robert W. Boyd, David J. Stryker, Donald K. Belcher, Michael A. Wohl, Timothy C. Harrington |
2000-10-03 |
| 5134400 |
Microwave multiplying D/A converter |
— |
1992-07-28 |
| 4823096 |
Variable ratio power divider/combiner |
— |
1989-04-18 |
