The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2001
Filed:
Aug. 21, 1997
Jose Luiz Albuquerque Moraes, Middlesex, GB;
Sze-Ching Lu, Surrey, GB;
ICO Services Ltd., London, GB;
Abstract
In a satellite communication system where user terminals,communicate via satellites,A-E with earth stations,A-E to join with a terrestrial telephone network,, a controller,at a master earth station,A monitors all earth stations,A-E for a request for service received from a user terminal,, then calculates which earth station,A-E is best placed to service the request and instructs the best placed earth station,B to service the request. In servicing the request, the best placed earth station,B uses that earth station,C whereat the user terminal,is registered as a visitor as the gateway into the terrestrial system,by routing all voice grade messages thereto and therefrom via a voice link,. If the user terminal,is not registered at any earth station,A-E, the best placed earth station becomes the earth station of registration and acts as a gateway. The user terminal can store the identity of the last earth station,A-E whereat it was registered and can inform the controller,for direct use of that information.