Patent ID: 7967200
Filing Date: 2011-06-28
Classification: G07C,H04W

Abstract:
1. An authorization checking method, comprising: transmitting authorization data from an authorization center via a telecommunication network to a first reproduction device; transmitting reference data from a reproduction control center via the telecommunication network to a second reproduction device; transmitting reproduction control data from the reproduction control center via the telecommunication network to the first reproduction device; altering reproduction attributes during reproduction of the authorization data using a user interface of the first reproduction device, such that reproduction of the authorization data changes dynamically, alteration of the reproduction attributes during reproduction of the authorization data taking place based on the reproduction control data from the reproduction control center; and granting authorization if there is a match between the reproduction of the authorization data using the user interface of the first reproduction device and the reproduction of the reference data using a user interface of the second reproduction device, the match between the reproduction of the authorization data and the reproduction of the reference data consisting at least in the reproduction attributes, and alterations in the reproduction attributes being time-synchronized.