Invention Application
- Patent Title: ACTIVE DATA HIDING FOR SECURE ELECTRONIC MEDIA DISTRIBUTION
- Patent Title (中): 主动数据保护用于安全电子媒体分发
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Application No.: PCT/US2000/029108Application Date: 2000-10-19
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Publication No.: WO01031838A1Publication Date: 2001-05-03
- Main IPC: G06F21/22
- IPC: G06F21/22 ; G11B20/00 ; H04L29/06 ; H04L29/08 ; H04N7/08 ; H04N7/081 ; H04N7/26 ; H04N21/235 ; H04N21/2389 ; H04N21/435 ; H04N21/6334 ; H04N21/81 ; H04N21/8352 ; H04L9/00
Abstract:
A method is provided for distributing multimedia content in an electronic media distribution system. The method comprises the steps of: (a) providing active hidden data (24), where the active hidden data comprises a plurality of executable machine instructions; (b) embedding active hidden data into the host data stream (26, 30), thereby forming an embedded data stream; (c) transmitting the embedded data stream from a content provider device (12) via distribution channel (14) to a player device (16); (d) extracting the active hidden data from the embedded data stream (44) on the player device; and (e) executing the active hidden data (48) on the player device.
Information query