Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2003-10-22
2009-12-22
Fischer, Andrew J. (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S026640, C705S059000, C705S064000, C705S067000, C705S071000, C713S161000, C713S176000, C713S182000, C380S200000, C380S201000, C380S202000, C380S203000, C707S793000, C707S793000
Reexamination Certificate
active
07636691
ABSTRACT:
A digital content distribution control method, a digital content reproducing method, and a digital content reproducing apparatus. The digital content distributing side manipulates digital content by encrypting and compressing the same, transmits the manipulated digital content, an encrypted content key, and encrypted billing information to the other party of communication, and distributes to digital content proprietors the digital content usage fees collected based on digital content usage information received from the other party. On the other hand, the digital content reproducing side decrypts, in a single portable terminal, the manipulated digital content by the digital key and decompresses the decrypted digital content for reproduction. At the same time, the reproducing side decrements the billing information according to the use of the content and generates content usage information to be transmitted to the content distributing side. The digital content reproducing apparatus associated with the present invention is made portable to solve the above-mentioned problems.
REFERENCES:
patent: 4302750 (1981-11-01), Wadhwani et al.
patent: 4796297 (1989-01-01), Okamoto
patent: 5384847 (1995-01-01), Hendrickson et al.
patent: 5509071 (1996-04-01), Petrie et al.
patent: 5629980 (1997-05-01), Stefik et al.
patent: 5845281 (1998-12-01), Benson et al.
patent: 5892900 (1999-04-01), Ginter et al.
patent: 0 478 969 (1992-04-01), None
patent: 07-288519 (1995-10-01), None
patent: 08-008851 (1996-01-01), None
patent: 08-160855 (1996-06-01), None
patent: 08-314451 (1996-11-01), None
patent: 09-006608 (1997-01-01), None
patent: 09-073337 (1997-03-01), None
patent: 09-073487 (1997-03-01), None
patent: WO 96/41315 (1996-12-01), None
“Applied Cryptography” Bruce Schneier, p. 33, 1996.
Microsoft Press Computer Dicitionary 3rd Edition, 1997, p. 199.
DigiBox: A Self-Protecting Container for Information Commerce, by Olin Sibert, David Bernstein, and David Van Wie and published in the Proceedings of the First USENIX Workshop on Electronic Commerce New York, New York, Jul. 1995.
Denning, “To Tap or Not to Tap”, Communications of the ACM v36n3, pp. 24-33, Mar. 1993, ISSN:0001-0782.
Fischer Andrew J.
Lerner David Littenberg Krumholz & Mentlik LLP
Obeid Mamon
Sony Corporation
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