Method for selling and using media objects and a suitable...

Details Method for selling and using media objects and a suitable... Method for selling and using media objects and a suitable...

1999-06-02

2009-02-10

Fischer, Andrew J. (Department: 3621)

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

Business processing using cryptography

Usage protection of distributed data files

C705S050000, C726S026000

Reexamination Certificate

active

07490067

ABSTRACT:
Method for selling and using digital media objects (6) as well as a mobile communications terminal (1) suitable therefor, in which method a media object (6) is ordered from a center (3) by a user by means of his mobile communications terminal (1), and is transmitted by the center (3) via a radio network (2) to the mobile communications terminal (1), where the transmitted media object (6) is stored in a memory (12) and where a media content (62) contained in the transmitted media object (6) is played back by a media playback module (13) of the said communications terminal (1) via a suitable medium. Preferably, prior to the transmission to a communications terminal (1), the media content (62) of the media object (6) is encrypted with a first key (7), assigned to this media object (6), this first key (7) is transmitted, encrypted by a public second key (9), to the communications terminal (1), and is decrypted there through a private third key (9′), and the encrypted media content (62′) is decrypted by means of the decrypted first key (7″) prior to playback through the media playback module (13).

REFERENCES:
patent: 6226618 (2001-05-01), Downs et al.
patent: 6366893 (2002-04-01), Hannula et al.
patent: 6661777 (2003-12-01), Blanc et al.
patent: 0 804 012 (1997-10-01), None
patent: 97 34410 (1997-09-01), None
Wei Zhao & Satish K. Tripathi, Bandwidth-efficient continuous media streaming through optimal multiplexing, May 1999, ACM Press, pp. 13-22, ISSN:0163-5999.

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