| 7499710 |
Integrity monitoring for geo-location systems |
Ren DA |
2009-03-03 |
| 7315734 |
Method for performing a predetermined action on wireless calls based on caller's location |
John Friedenfelds |
2008-01-01 |
| 7203306 |
Apparatus and method for providing switching at a telephone cross-connect |
Douglas E. Bain, David Frederick DiBiase, George Andrew Holz |
2007-04-10 |
| 6658258 |
Method and apparatus for estimating the location of a mobile terminal |
Byron Hua Chen, Ibrahim Tekin, Giovanni Vannucci |
2003-12-02 |
| 6650902 |
Method and apparatus for wireless telecommunications system that provides location-based information delivery to a wireless mobile unit |
— |
2003-11-18 |
| 6570529 |
Autonomous calibration of a wireless-global positioning system |
Kenneth C. Budka, Daniel R. Jeske, Doru Calin |
2003-05-27 |
| 6538600 |
Wireless assisted GPS using a reference location |
Giovanni Vannucci |
2003-03-25 |
| 6400956 |
Method and apparatus for a wireless telecommunication system that provides location-based action services |
— |
2002-06-04 |
| 6281837 |
Auxiliary system for assisting a wireless terminal in determining its position from signals transmitted from a navigation satellite |
Giovanni Vannucci |
2001-08-28 |
| 6199010 |
Wireless telecommunications system that provides navigational assistance to travelers |
— |
2001-03-06 |
| 6114991 |
Auxiliary system for assisting a wireless terminal in determining its position from signals transmitted from a navigation satellite |
Giovanni Vannucci |
2000-09-05 |
| 5963866 |
Wireless location messaging |
Maria E. Palamara |
1999-10-05 |
