Contents managing method and contents managing apparatus

Details Contents managing method and contents managing apparatus Contents managing method and contents managing apparatus

2005-01-25

2005-01-25

Trammell, James P. (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S001100, C705S051000

Reexamination Certificate

active

06847950

ABSTRACT:
A contents managing method of regulating a number of copied contents storable on a storage medium includes giving a predetermined number of copyable contents for each content, recording the copied contents on the storage medium upon reception of an instruction for copy recording on the storage medium when there is a remainder in the number of copyable contents, decrementing the number of copyable contents by “1” every time one copied content is recorded on the storage medium at a time of recording, and incrementing the number of copyable contents by “1” every time one copied content is erased from the storage medium upon reception of an instruction to erase the copied contents from the storage medium.

REFERENCES:
patent: 5761301 (1998-06-01), Oshima et al.
patent: 5956688 (1999-09-01), Kokubo et al.
patent: 6034832 (2000-03-01), Ichimura et al.
patent: 6070171 (2000-05-01), Snyder et al.
patent: 407057481 (1995-03-01), None
SDMI Portable Device Specification Version 1.0 8, Jul. 1999.

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