Film fingerprinting

Details Film fingerprinting Film fingerprinting

2011-07-12

2011-07-12

Lemma, Samson (Department: 2432)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

Reexamination Certificate

active

07979710

ABSTRACT:
A technique for film marking includes coding a print identifier into a binary-coded bit-complement serial number; identifying particular frames that will be used to convey the bits of the binary-coded bit-complement serial number and marking these bit frames in accordance with the particular bit values of the binary-coded bit-complement serial number. The presence of a predefined mark on a bit frame is representative of a binary digit having a value of one, while the absence of the predefined mark on a bit frame is representative of a binary digit having a value of zero.

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patent: 2002/0027612 (2002-03-01), Brill et al.
patent: WO2004/030339 (2004-04-01), None
Yeh C. H. et al: “Digital watermarking through quasi m-arays° Signal Processing Systems, 1999, SIPS 99, IEEE Workshop on Taipei, Taiwan Oct. 20-22, 1999, Piscataway, NJ USA, IEEE, US, Oct. 20, 1999, p. 456-461 XP010370838 ISBN: 0-7803-5650-0 Abstract Section 'I. Introduction”.
Sarah Mc Bride: The Hunt for Movie Pirates, Hollywood Test New Tricks, Including Spying on Audience to find camcorders in crowd.
Search Report Dated Oct. 19, 2004.

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