In one embodiment, a mechanism where a client can transmit a request for a digitally-signed location data uniform resource locator (location data-URL), and receive a response including a digitally-signed location data-URL, wherein the location data-URL includes location information corresponding to a...http://www.google.es/patents/US20080065775?utm_source=gb-gplus-sharePatente US20080065775 - Location data-URL mechanism
