Title:
LENDING MANAGEMENT SYSTEM OF CONTENT
Document Type and Number:
Japanese Patent JP2004127164
Kind Code:
A
Abstract:
To provide a lending management system of contents for which no return procedure of the contents is required and in which browsing of the contents after a lending period is prevented.
The lending management system of contents is provided with a lending store 20 which lends a recording medium 21 in which the encrypted contents and validity of the contents are stored and a player 10 having a control part 2, a radio controlled clock 4, and a storage part 6 which stores an encryption key and the control part 2 decodes the contents by a decoding key, and reproduces them when time of the wave clock is decided to be within the validity read from the recording medium.
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Inventors:
KIYOMOTO SHINSAKU
NAKAO KOJI
TANAKA TOSHIAKI
NAKAO KOJI
TANAKA TOSHIAKI
Application Number:
JP2002293601A
Publication Date:
April 22, 2004
Filing Date:
October 07, 2002
Export Citation:
Assignee:
KDDI CORP
International Classes:
G06F12/14; G06F21/10; G06F21/60; G06F21/62; G06Q30/06; G06Q50/00; G06Q50/10; G09C1/00; H04N5/765; H04N5/93; (IPC1-7): G06F17/60; G06F12/14; G09C1/00; H04N5/93
Attorney, Agent or Firm:
Masakazu Aoyama
Masatake Shiga
Takashi Watanabe
Masatake Shiga
Takashi Watanabe