Method and system for providing security within multiple...

H - Electricity – 04 – N

Patent

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Details

H04N 21/436 (2011.01)

Patent

CA 2467907

Two or more set-top boxes are installed in a household. A communications link, preferably a physical link, is provided between or among the set-top boxes. One of the boxes is designated as a "master" box while the other box or boxes are "slaves". The slave box will use the communications link to communicate in a secured and encrypted manner with the master box. If that communication is severed, e.g., if an attempt is made to move the slave box to another household to provide unauthorized service in that household, the slave box will stop working when it can no longer communicate with the master box.

Deux décodeurs ou plus sont montés chez un particulier. Une liaison de communication, de préférence physique, relient les décodeurs. L'un des décodeurs est dit décodeur "principal", le ou les autres décodeurs sont dits décodeurs "asservis". Le décodeur asservi utilise la liaison de communication pour communiquer de manière sécurisée et chiffrée avec le décodeur principal, En cas de coupure de communication, par exemple à la suite d'une tentative pour emporter le décodeur et l'utiliser indûment dans un autre foyer, le décodeur asservi cesse devient inopérant dès qu'il ne peut plus communiquer avec le décodeur principal.

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