The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2012
Filed:
Jan. 13, 2006
Yun-sang OH, Seoul, KR;
Suk-bong Lee, Suwon-si, KR;
Kyung-im Jung, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Maetan-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;
Abstract
A digital rights management method and device are provided. To implement the DRM method and device, there is provided a master device including a storage module which stores a plurality of rights objects (ROs) having an inheritance structure, a detection module which detects the storage module for an RO needed for playing back a predetermined content object, a message generation module which, if the detection module fails to discover the RO needed for playing back the predetermined content object from the storage module, generates an RO request message, a device interface module which transmits the RO request message to a slave device and receives the RO needed for playing back the predetermined content object from the slave device, and a playback module which plays back the predetermined content object using at least one of the RO detected from the storage module and the RO received from the slave device.