Method for permitting reproduction of content file and recorded medium on which reproduction software for reproducing content file is recorded
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 17, 2003
app pub date -
Dec 12, 2002
filing date -
Jul 28, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Problem: When a contents file is acquired and played back by play back software so that the contents of the contents file are enjoyed, it is not preferable that the contents file be copied among terminal users without any restriction from the view point of a copy right. Solving means: When playback software for playing back a contents file is set up, a client ID inherent to each play back software is given and incorporated in the play back software as well as when the contents file is down loaded to a terminal computer, the client ID is incorporated also in the contents file, and the play back of the contents file is permitted only when the client IDs of both of the play back software and the contents file agree with each other.
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