Contents using device, and contents using method

Abstract

A contents using device (or a terminal device) (300) comprises a license processing unit (305) for deciding a contents using propriety on the basis of a license using condition, a contents reproduction unit (304) for using the contents decided to be usable by the terminal device (300), limit means (or the contents reproduction unit (304)) for limiting the license corresponding to the contents so that the license cannot be used by another, because it is in use, for the time period after the contents reproduction unit (304) started the use of the contents and before the use is normally ended, an event detection unit (307) for detecting a predetermined event to forcibly quit the use of the contents having occurred for the time period from the start to the normal end of the use of the contents, limit relaxation propriety deciding means (or a recovery/penalty decision unit) (309) for deciding whether or not the predetermined event is contrary to the will of a user, and limit relaxing means (or a license recovery unit) (306) for relaxing the limit to the contents use in case the recovery/penalty decision unit (309) decided the contrary to the will of the user.

Description

technical field [0001] The present invention relates to a content usage device and a content usage method for using contents protected by copyright. Background technique [0002] In recent years, systems for distributing digital works such as music, video, and games through the Internet or digital broadcasting have been developed, and some of them have entered the stage of practical use. Also, when distributing these contents, control methods for using contents, which means limiting the number of reproductions or moving, copying, etc. of distributed contents, have been examined together from the viewpoint of copyright protection and the like. [0003] In the conventional mode, a server distributes information (hereinafter referred to as "license") including usage conditions and content keys necessary for using the content, and terminal devices at home use the license distributed by the server to Use content, perform reproduction, etc. [0004] For example, the number of ti...

AI Technical Summary

Problems solved by technology

[0011] Therefore, in the event that the power supply is interrupted by accident at the beginning of content playback, the user's rights cannot be protected by reducing the specified amount of usage conditions with almost no use of the content.

For example, if you subtract 10 minutes from the usable time at the beginning of use, and add (10 minutes - use time) to the usable time at the end of use, if the power is turned off after 2 minutes of use, it will not be added. The 8 minutes that should have been added, so that the user can lose 8 minutes of time

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