Title:
CONTENT DELIVERY SYSTEM, CONTENT DELIVERY METHOD, AND CLIENT TERMINAL
Document Type and Number:
WIPO Patent Application WO/2003/029988
Kind Code:
A1
Abstract:
When a cellular terminal transmits a content information request including a user ID, a delivery server delivers streaming data of a content usable by the user. When a cellular terminal permits another cellular terminal trial of a content, the cellular terminal transmits trial permission information including its user ID, the content ID of the content, and a digital signature. After authentication, the delivery server streaming−delivers the trial content by using the content ID and the user IS as a search key. Thus, a content usable on a user terminal can be tried on another user terminal without performing a complicated process.
Inventors:
NOMURA RYOSUKE (JP)
Application Number:
PCT/JP2002/008313
Publication Date:
April 10, 2003
Filing Date:
August 16, 2002
Export Citation:
Assignee:
SONY CORP (JP)
NOMURA RYOSUKE (JP)
NOMURA RYOSUKE (JP)
International Classes:
G06F12/14; G06F13/00; G06F21/10; G06F21/62; G06Q10/00; G06Q30/04; G06Q30/06; G06Q50/00; G06Q50/10; H04L29/06; H04N7/173; H04N21/239; H04N21/418; H04N21/4627; (IPC1-7): G06F13/00; G06F17/60
Domestic Patent References:
| WO2001016671A1 | 2001-03-08 |
Foreign References:
| JP2001223766A | 2001-08-17 | |||
| JP2000270309A | 2000-09-29 | |||
| JPH10124586A | 1998-05-15 | |||
| JP2001078266A | 2001-03-23 |
Attorney, Agent or Firm:
Yamada, Eiji (Miyata & Yamada Patent Office Ginza TK
Bldg. 1-, Shintomi 1-chome Chuo-ku Tokyo, JP)
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