Copy control using digital speed bumps

Details Copy control using digital speed bumps Copy control using digital speed bumps

2007-10-23

2007-10-23

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

For copying

C369S053210, C369S084000, C726S027000, C726S030000, C726S031000, C726S033000

Reexamination Certificate

active

10521134

ABSTRACT:
A digital media recorder and a method of controlling such are provided. During attempts to copy media content, sub-sequences are extracted from an input media sequence. A digital fingerprint of the sub-sequence is calculated and compared with at least one first reference fingerprint from a database. The outcome of the comparison determines the action to take in the further processing. Recording of the input media sequence on a media carrier is either allowed or obstructed, e.g. disallowed. In the case recording of the sequence is allowed, the database is updated with information that the digital media sequence has been recorded.

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patent: 1058257 (2000-12-01), None
patent: 1107253 (2001-06-01), None

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