| US 7,383,228 B2 | ||
| Method and system for preventing unauthorized rerecording of multimedia content | ||
| Michael G. Lisanke, Boynton Beach, Fla. (US); Kenneth L. Milsted, Boynton Beach, Fla. (US); Stefan Nusser, Mountain View, Calif. (US); Bruce A. Tantlinger, Boynton Beach, Fla. (US); and George W. Wilhelm, Jr., Endwell, N.Y. (US) | ||
| Assigned to International Business Machines Corporation, Armonk, N.Y. (US) | ||
| Filed on Aug. 11, 2005, as Appl. No. 11/201,809. | ||
| Application 11/201809 is a division of application No. 09/938401, filed on Aug. 23, 2001, granted, now 7,346,580. | ||
| Application 09/938401 is a continuation in part of application No. 09/376102, filed on Aug. 17, 1999, granted, now 6,611,812. | ||
| Application 09/376102 is a continuation in part of application No. 09/177096, filed on Oct. 22, 1998, granted, now 6,389,538. | ||
| Application 09/177096 is a continuation in part of application No. 09/133519, filed on Aug. 13, 1998, granted, now 6,226,618. | ||
| Prior Publication US 2006/0085343 A1, Apr. 20, 2006 | ||
| Int. Cl. G06Q 99/00 (2006.01) | ||
| U.S. Cl. 705—51 [380/269; 386/107] | 10 Claims |
| 1. An end-user system comprising:
an interface to a storage media for storing encrypted multimedia content to be rendered using the end-user system using multimedia
output devices and/or output ports of the end-user device after decryption of the encrypted multimedia content;
a plurality of multimedia input devices and/or input ports, wherein at least one of the multimedia input devices and/or input
ports is capable of recording at least part of the encrypted multimedia content which has been decrypted; and
a multimedia player for rendering the encrypted digital content, whereby prior to decryption of the encrypted multimedia content,
blocking access to all multimedia input devices and/or input ports of the end-user system, the blocking being accomplished
by opening all multimedia input devices and/or input ports of the end-user system that can receive any part of the encrypted
multimedia content which has been decryrted, to prevent use of such multimedia input devices and/or input ports, thereby preventing
re-recording of any part of the encrypted multimedia content which has been decrypted by the end-user device; decrypting at
least part of the encrypted multimedia content; and subsequent to decryption, and while access to all such multimedia input
devices and/or input ports is blocked, rendering the at least part of the multimedia content which has been decrypted.
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