Patent ID: 8689337

Claim:
A method of fingerprinting a video object comprising: extracting data from the video object, the extracted data including encoded video, Content Scrambling System bits, Region Protection Code bits and Analog Protection System bits; generating a plurality of digital fingerprints from the extracted data, wherein generating the plurality of digital fingerprints includes: calculating a first digital fingerprint from the extracted data, wherein the first digital fingerprint is operative to distinguish between the video object and copies of the video object; masking one or more bits of the extracted data; calculating, subsequent to masking, a second digital fingerprint from the extracted data, wherein the one or more masked bits include at least one bit that has a first value in an original version of the video object and a second value in a copy of the video object, wherein the second digital fingerprint uniquely identifies a portion of the encoded video and is operative to identify the video object and copies of the video object; and maintaining, in a database, a copy of the plurality of digital fingerprints in association with information identifying the video object.