A time signal generation system produces a reference time signal based on the signals transmitted by geostationary satellites, such as the satellites in the Wide Area Augmentation System (WAAS). A receiver in the system includes a directional antenna that is focused on the signals transmitted by the...http://www.google.fr/patents/US20010026239?utm_source=gb-gplus-shareBrevet US20010026239 - Method and apparatus for generating a time signal
Numéro de demande: 09/770,421 Numéro de publication: US 2001/0026239 A1 Date de dépôt: 26 janv. 2001 Brevet délivré: US6445340 ( Date de délivrance 3 sept. 2002)
