Patent ID: 9275423
Filing Date: 2016-03-01
CPC Classification: G06Q,H04N

Claim Text:
1. A method of a service receiver device renewing a service which is right-protected, the method comprising: in the service receiver device: obtaining an issued short term right object associated with a long term right object for the service, the issued 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 service; checking whether an expiration time of the issued short term right object is less than a threshold value; requesting, if the expiration time of the issued short term right object is less than the threshold value, a server to issue a new short term right object; 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 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 service; and renewing the license duration using the new short term right object.