Restriction canceling apparatus

Details Restriction canceling apparatus Restriction canceling apparatus

2006-02-28

2006-02-28

Cheung, Mary D. (Department: 3621)

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

Business processing using cryptography

Usage protection of distributed data files

Reexamination Certificate

active

07006996

ABSTRACT:
A restriction canceling apparatus comprising: a memory that stores content consisting of a plurality of relating parts whose functions are restricted and a plurality of restriction canceling data, each corresponding to one of said parts; a first receiver that receives a first request of a client for transmission of the content; a first transmitter that transmits said content to said client upon said first request; a second receiver that receives a second request of said client for transmission of at least one of the restriction canceling data; and a second transmitter that transmits the restriction canceling data to said client upon said second request.

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