Patent ID: 8774401

Claim:
A method renewing a right-protected broadcast service, said method comprising: at a broadcast receiver: obtaining an issued short term right object associated with a purchased long term right object for the broadcast receiver, the short term right object having a license duration that is shorter than that of the long term right object and is a part of an entire license duration defined by the long term right object for the broadcast service; determining whether a time to expiration of the issued short term right object is less than a predetermined threshold value; requesting, when the time to expiration of the issued short term right object is less than the threshold value, a server to issue a new short term right object; and receiving the new short term right object issued and transmitted by the server over a communications network, the new short term right object having a license duration that is other part of the entire license duration, and renewing the license duration using the new short term right object.