Patent ID: 8341706
Filing Date: 2012-12-25
Classification: H04N

Abstract:
1. A method of processing authorization messages by a mobile device having a receiver, the authorization messages being transmitted in a cyclic way by authorization message packets, the authorization message packets including a subset of authorization messages, at least one of the authorization message packets being intended for said mobile device and at least another one of the authorization message packets being not intended for the mobile device, said method comprising the steps of: receiving all of the authorization message packets by said mobile device during the duration of at least one initialization cycle, wherein one cycle contains contents corresponding to a plurality of services and at least one authorization messages packet, the contents and the authorization messages packet sent during, one cycle being different from the contents and the authorization messages packet sent during another cycle; determining at least one group of mobile devices having receivers to which said mobile device belongs; among the authorization message packets received during the at least one initialization cycle, determining by said mobile device all of the authorization message packets intended for the said group of mobile devices to which said mobile device belongs; determining by said mobile device at least one time interval during the at least one initialization cycle, all of the authorization message packets intended for the group of mobile devices to which said mobile device belongs being received by said mobile device during said at least one time interval; during at least one cycle subsequent to the at least one initialization cycle, automatically switching said receiver on during a first part corresponding to the at least one time interval determined for the at least one initialization cycle, in order to receive at least one authorization message packet intended for the group of mobile devices to which said mobile device belongs and automatically setting said receiver in standby mode during a second part in which at least one authorization message packet intended for a group of mobile devices to which said mobile device does not belong are being transmitted, and processing by the mobile device, said authorization messages received in the authorization message packets.