Issued Patents All Time
Showing 126–150 of 158 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5168493 | Time division multiplexed selective call system | Leonard E. Nelson, Robert J. Schwendeman, David F. Willard, Jerry L. Sandvos, William V. Braun | 1992-12-01 |
| 5150415 | Volume control circuit using pulse modulation | James Jaffee | 1992-09-22 |
| 5146216 | Multiple message signalling protocol for a selective call receiver | Joan S. DeLuca | 1992-09-08 |
| 5144296 | Adaptive battery saving controller with signal quality detecting means | Tuan K. Nguyen | 1992-09-01 |
| 5140310 | Interrupting low battery indicator | Pamela A. Rakolta | 1992-08-18 |
| 5128665 | Selective call signalling system | Gregory O. Snowden, Robert J. Schwendeman, Leon Jasinski | 1992-07-07 |
| 5115182 | Battery charging controller for a battery powered device and method for using the same | Edward L. Ehmke, Tuan K. Nguyen | 1992-05-19 |
| 5095498 | Bit synchronizer | Joan S. DeLuca | 1992-03-10 |
| 5093212 | Electronic device having an air regulating battery compartment responsive to electrical load control | Robert D. Lloyd, Tuan K. Nguyen | 1992-03-03 |
| 5089814 | Automatic time zone adjustment of portable receiver | Joan S. DeLuca | 1992-02-18 |
| 5089813 | Method of super battery saving in a selective call receiver | Leon Jasinski, David F. Willard | 1992-02-18 |
| 5086501 | Computing system with selective operating voltage and bus speed | Mario A. Rivas | 1992-02-04 |
| 5077758 | Signal detector and bit synchronizer | Richard A. Erhart, Joan S. DeLuca | 1991-12-31 |
| 5075684 | Selective call message management | — | 1991-12-24 |
| 5051993 | Mixed modulation level communication system | David F. Willard, Robert J. Schwendeman | 1991-09-24 |
| 5049875 | Method and apparatus for out of range detection in response to nondetection of predetermined baud rates | Joan S. DeLuca, Richard A. Erhart | 1991-09-17 |
| 5032835 | Out of range indication for radio receivers | — | 1991-07-16 |
| 5025252 | Paging receiver with over-the-air characterization of call signal processing | Gregory O. Snowden, Robert D. Fennell | 1991-06-18 |
| 4996526 | Power conservation method and apparatus for a portion of a synchronous information signal | — | 1991-02-26 |
| 4975694 | Paging receiver with variable color indicators | Kevin T. McLaughlin | 1990-12-04 |
| 4952929 | Selective call receiving system | Courtney S. Henry | 1990-08-28 |
| 4952927 | Paging receiver with dynamically allocated display rate | Joan S. DeLuca, John M. McKee | 1990-08-28 |
| 4935735 | Selective call radio receiver silent alert mode entry system | William Siegel, Kazushige Sakou | 1990-06-19 |
| 4879758 | Communication receiver system having a decoder operating at variable frequencies | Jeffrey B. Reed | 1989-11-07 |
| 4860003 | Communication system having a packet structure field | Joan S. DeLuca, George B. Shea | 1989-08-22 |