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.
Patent No.:
Date of Patent:
Mar. 31, 2015
Filed:
Aug. 16, 2013
Verimatrix, Inc., San Diego, CA (US);
Niels J. Thorwirth, San Diego, CA (US);
Verimatrix, Inc., San Diego, CA (US);
Abstract
Systems and methods are described for imperceptibly embedding information by identifying locations that can be imperceptibly modified, where the imperceptible modification by replacing original content using replacement content derived from elsewhere in the compressed bitstream to remove at least a portion of the original content, generating at least one piece of replacement data for each identified location, where overwriting a portion of the compressed bitstream with replacement data prevents a decoder from decoding original content due to decoding replacement content derived from elsewhere in the compressed bitstream, selecting pieces of replacement data using an embedding device, where overwriting portions of the compressed bitstream using pieces of replacement data encodes payload information in accordance with a predetermined coding scheme, and embedding the payload information in the compressed bitstream by using the embedding device to overwrite at least a portion of the compressed bitstream with the selected replacement data.