Issued Patents All Time
Showing 26–50 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314056 | High-speed vibratory alignment and singulation conveyor | James E. Anderson | 1994-05-24 |
| 5287541 | Global satellite communication system with geographic protocol conversion | Philip P. Macnak | 1994-02-15 |
| 5251325 | Battery saving method and apparatus for providing selective receiver power switching | James G. Mittel | 1993-10-05 |
| 5239668 | Satellite signalling system | — | 1993-08-24 |
| H1173 | Paging device with alternating alert outputs | George Drapac, Stephen H. Woltz | 1993-04-06 |
| 5193216 | Detecting out of range in response to a loss of signal and a history of approaching out of range prior to the loss of signal | — | 1993-03-09 |
| 5153582 | Method of and apparatus for acknowledging and answering a paging signal | — | 1992-10-06 |
| 5129095 | Global communication system receiver and method for operating the same | Philip P. Macnak | 1992-07-07 |
| 5122778 | Serial word comparator | Richard A. Erhart, Barry W. Herold | 1992-06-16 |
| 5121503 | Satellite signaling system having a signal beam with a variable beam area | — | 1992-06-09 |
| 5117500 | Multi system decoding receiver | Kuppuswamy Raghunathan | 1992-05-26 |
| 5111486 | Bit synchronizer | Mark L. Oliboni, Stephen H. Woltz, George Drapac | 1992-05-05 |
| 5109544 | Paging receiver with automatic frequency control | James G. Mittel, Sergio Fernandez, Lorenzo A. Ponce De Leon, Kazimierz Siwiak | 1992-04-28 |
| 5058204 | Synthesized selective call receiver having variable characteristics | Omid Tahernia, Barry W. Herold | 1991-10-15 |
| 5025251 | Self-tuning direct coupled data limiter of a battery saver type paging receiver | James G. Mittel | 1991-06-18 |
| 5008952 | Global satellite communication system with geographic protocol conversion | Philip P. Macnak | 1991-04-16 |
| 4995099 | Power conservation method and apparatus for a portion of a predetermined signal | — | 1991-02-19 |
| 4975693 | Programmable multi-address pager receiver and method of characterizing same | George Drapac, Stephen H. Woltz | 1990-12-04 |
| 4949085 | Prioritization of stored messages in a digital voice paging receiver | Kenneth D. Fisch | 1990-08-14 |
| 4942598 | Telephone answering machine in paging systems with automatic number identification based message operations | — | 1990-07-17 |
| 4928314 | Heterodyne stage having precise closed-loop control of the amplitude of the injection signal thereof | Walter J. Grandfield, James G. Mittel | 1990-05-22 |
| 4910510 | System for off-the-air reprogramming of communication receivers | Nasrin Sirang | 1990-03-20 |
| 4901036 | Frequency synthesizer with an interface controller and buffer memory | Barry W. Herold, Omid Tahernia, Mario A. Rivas | 1990-02-13 |
| 4894649 | Pager having time controlled functions | — | 1990-01-16 |
| 4893271 | Synthesized clock microcomputer with power saving | Barry W. Herold, Wendell L. Little | 1990-01-09 |