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:
Aug. 30, 2016
Filed:
Jul. 07, 2011
Applicants:
André Kudelski, Lutry, CH;
Christophe Nicolas, St. Prex, CH;
Inventors:
André Kudelski, Lutry, CH;
Christophe Nicolas, St. Prex, CH;
Assignee:
Nagravision S.A., Cheseaux-sur-Lausanne, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 7/173 (2011.01); H04N 21/254 (2011.01); H04N 21/4363 (2011.01); H04N 21/4367 (2011.01); H04N 21/835 (2011.01); H04N 7/167 (2011.01);
U.S. Cl.
CPC ...
H04N 21/2541 (2013.01); H04N 21/4367 (2013.01); H04N 21/43635 (2013.01); H04N 21/43637 (2013.01); H04N 21/835 (2013.01);
Abstract
Example embodiments relate to a system to prevent manipulation of transmitted video data including an Integrated Receiver Decoder (IRD) receiving audio/video data and a display device. The IRD may include a device to transmit an HDMI compliant audio/video stream toward the display device. The system may further include a device to add an over-encryption layer to the HDMI/HDCP stream before reaching the display device and a device to remove the added encryption layer so as to recover the HDMI/HDCP stream, before processing the HDMI/HDCP stream by the display device.