The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 19, 2016

Filed:

May. 02, 2012
Applicants:

Peter Roelse, Hoofddorp, NL;

Jeroen Doumen, Hoofddorp, NL;

Thijs Laarhoven, Hoofddorp, NL;

Inventors:

Peter Roelse, Hoofddorp, NL;

Jeroen Doumen, Hoofddorp, NL;

Thijs Laarhoven, Hoofddorp, NL;

Assignee:

Irdeto B.V., Hoofddorp, NL;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/16 (2013.01); G09C 5/00 (2006.01); H04L 9/00 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
G06F 21/16 (2013.01); G09C 5/00 (2013.01); H04L 9/00 (2013.01); H04L 9/32 (2013.01); G06F 2221/0748 (2013.01); H04L 2209/606 (2013.01);
Abstract

A fingerprinting method. For each round in a series of rounds: providing to each receiver in a set of receivers a version of a source item of content, the source item of content corresponding to the round. For the round there is a corresponding part of a fingerprint-code for the receiver, the part includes one or more symbols. The version provided to the receiver represents those one or more symbols. One or more corresponding symbols are obtained from a suspect item as a corresponding part of a suspect-code. For each receiver in the set of receivers, a corresponding score that indicates a likelihood that the receiver is a colluding-receiver is updated.


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