Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10520606 | Method and system for determining time in a satellite positioning system | Charles Abraham, Frank van Diggelen | 2019-12-31 |
| 8832718 | Method and apparatus for providing an interface between application software and a satellite positioning system sub-system in a location enabled device | Charles Abraham | 2014-09-09 |
| 8738290 | Method and apparatus for managing network elements in a satellite navigation data distribution system | Charles Abraham, Steven Malkos | 2014-05-27 |
| 8687549 | Method and apparatus for processing location service messages in a satellite position location system | Charles Abraham | 2014-04-01 |
| 8660792 | Method and apparatus for distribution of satellite navigation data | Charles Abraham | 2014-02-25 |
| 8643541 | Method and apparatus for enhanced autonomous GPS | Frank van Diggelen, Charles Abraham | 2014-02-04 |
| 8600661 | Multi-function appliance for a satellite navigation data distribution system | Charles Abraham, Steven Malkos | 2013-12-03 |
| 8395543 | Method and apparatus for mitigating multipath effects at a satellite signal receiver using a sequential estimation filter | Frank van Diggelen, Charles Abraham | 2013-03-12 |
| 8170086 | Method and apparatus for performing signal correlation | Charles Abraham, Serge de la Porte | 2012-05-01 |
| 8134500 | Method and apparatus for enhanced autonomous GPS | Frank van Diggelen, Charles Abraham | 2012-03-13 |
| 8090536 | Method and apparatus for compression of long term orbit data | Frank van Diggelen, Matt Riben, Charles Abraham, Javier De Salas | 2012-01-03 |
| 7945387 | Method and apparatus for distribution of satellite navigation data | Charles Abraham | 2011-05-17 |
| 7929492 | Method and apparatus for processing location service messages in a satellite position location system | Charles Abraham | 2011-04-19 |
| 7719576 | Method and apparatus for tagging digital photographs with geographic location data | Charles Abraham | 2010-05-18 |
| 7640103 | Multi-function appliance for a satellite navigation data distribution system | Charles Abraham, Steven Malkos | 2009-12-29 |
| 7595752 | Method and apparatus for enhanced autonomous GPS | Frank van Diggelen, Charles Abraham | 2009-09-29 |
| 7554934 | Method and apparatus for processing location service messages in a satellite position location system | Charles Abraham | 2009-06-30 |
| 7548816 | Method and apparatus for generating and securely distributing long-term satellite tracking information | Matthew Riben, Frank van Diggelen, Charles Abraham | 2009-06-16 |
| 7196660 | Method and system for determining time in a satellite positioning system | Charles Abraham, Frank van Diggelen | 2007-03-27 |
| 7190712 | Method and apparatus for performing signal correlation | Charles Abraham, Serge de la Porte | 2007-03-13 |
| 7095370 | Method and apparatus for mitigating multipath effects at a satellite signal receiver using a sequential estimation filter | Frank van Diggelen, Charles Abraham | 2006-08-22 |