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:
Sep. 16, 2014
Filed:
Jul. 25, 2011
André Kudelski, Lutry, CH;
Christophe Nicolas, St-Prex, CH;
André Kudelski, Lutry, CH;
Christophe Nicolas, St-Prex, CH;
Nagravision S.A., Cheseaux-Sur-Lausanne, CH;
Abstract
A system includes a remote control device and a security device, wherein both devices share a unique and constant common key, algorithms or protocol specific to a pair formed by the remote control device and the security device. The unique and constant common key, algorithms or protocol are set up during a device initialization phase. The remote control device is configured to communicate wirelessly with a receiver of the security device. The remote control device, which is paired with the security device sending data towards the receiver, includes an encryption module and a memory to store the unique and constant common key. The data is encrypted by the encryption module with the unique and constant common key, and the security device includes a decryption module and a key corresponding to the unique and constant common key to decrypt the data received from the remote control device.