Title:
CONTENT RECEIVER, LICENSE RECEIVER, CONTENT UTILIZATION SYSTEM, METHOD OF CONTROLLING VIEWING/LISTENING PERIOD OF CONTENT, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2011/125141
Kind Code:
A1
Abstract:
There was an issue in conventional technology in that, when a portion of a plurality of contents that should be having the same viewing/listening period is written onto a commutative medium before the viewing/listening period thereof is established, the viewing/listening period of the plurality of contents could not be synchronized. A content receiver (903) is provided with a viewing/listening license invalidation unit (922) for invalidating a viewing/listening license of content the viewing/listening period of which is not established yet, and first control units (907, 910). When a content is to be played, the first control unit establishes a viewing/listening period when the viewing/listening license is valid, and when the viewing/listening license is invalid, the first control unit transmits a viewing/listening license request that includes a request for establishing a viewing/listening period, to a license server (902), and receives an established viewing/listening period from the license server. When content is to be written onto a commutative medium (911) before playing the content, the viewing/listening license thereof is invalidated if the viewing/listening license thereof has been validated, and then, an un-established viewing/listening period is written onto the commutative medium.
Inventors:
NISHIMURA TAKUYA
Application Number:
PCT/JP2010/006815
Publication Date:
October 13, 2011
Filing Date:
November 22, 2010
Export Citation:
Assignee:
PANASONIC CORP (JP)
NISHIMURA TAKUYA
NISHIMURA TAKUYA
International Classes:
G06F21/10; G06Q50/00
Domestic Patent References:
| WO2010021147A1 | 2010-02-25 |
Foreign References:
| JP2005165963A | 2005-06-23 | |||
| JPH10207779A | 1998-08-07 | |||
| JP2004021479A | 2004-01-22 |
Attorney, Agent or Firm:
TOKKYOGYOMUHOUJIN MATSUDAKOKUSAITOKKYOJIMUSYO (JP)
Patent business corporation Matsuda international patent firm (JP)
Patent business corporation Matsuda international patent firm (JP)
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