Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10684375 | Method of multiple satellite measurement failure detection and isolation for GNSS | Jong-Ki Lee | 2020-06-16 |
| 9411051 | System, method, and apparatus for a satellite navigational system receiver to select a subset of tracking satellites | Phanikrishna Sagiraju | 2016-08-09 |
| 9348031 | Delayed GeoTagging | James F. Brown, William Kerry Keal | 2016-05-24 |
| 8378887 | Systems and methods for synthesizing GPS measurements to improve GPS location availability | Gang Xie, Mangesh Chansarkar, Anil K. Kandangath | 2013-02-19 |
| 8364164 | Cell ID based positioning from cell intersections | Marlene Wan, Lionel Jacques Garin, Vijayaraghavan Venkatasubramanian, Sanjai Kohli | 2013-01-29 |
| 8248301 | Method and apparatus for using GPS satellite state computations in GLONASS measurement processing | Mangesh Chansarkar, Keith Brodie, William Kerry Keal | 2012-08-21 |
| 8159393 | Systems and methods for synthesizing GPS measurements to improve GPS location availability | Gang Xie, Mangesh Chansarkar, Anil K. Kandangath | 2012-04-17 |
| 8134501 | Method and apparatus for weak data frame sync in a positioning system | Gary Lennen, William Kerry Keal | 2012-03-13 |
| 7924220 | Method and apparatus for weak data frame sync in a positioning system | Gary Lennen, William Kerry Keal | 2011-04-12 |
| 7839324 | Efficient ephemeris coding | Gengsheng Zhang, Marlene Wan | 2010-11-23 |
| 7839330 | Determining position without current broadcast ephemeris | Lionel Jacques Garin, Lars Boeryd | 2010-11-23 |
| 7839331 | Satellite clock prediction | Geugsheng Zhang, Lionel Jacques Garin, Marlene Wan | 2010-11-23 |
| 7403154 | Determining position without use of broadcast ephemeris information | Lionel Jacques Garin | 2008-07-22 |
| 7142157 | Determining position without use of broadcast ephemeris information | Lionel Jacques Garin | 2006-11-28 |