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:
Oct. 01, 2013
Filed:
Sep. 28, 2007
Lewis Leung, Markham, CA;
Lewis Leung, Markham, CA;
ViXS Systems, Inc., Toronto, CA;
Abstract
A security module includes a signal interface for receiving an encrypted signal and a host interface that is coupleable to a host. A processing module is operable to receive encrypted decryption code from the host via the host interface, decrypt the encrypted decryption code to form decrypted decryption code that is operable to decrypt the encrypted signal, send the decrypted decryption code to the host via the host interface, monitor the security of the decrypted decryption code via security signaling sent between the host and the security module via the host interface to detect potential tampering with the decrypted decryption code, transfer the encrypted signal to the host via the host interface, and discontinue transfer of the encrypted signal when the security signaling indicates the potential tampering with the decrypted decryption code.