Patent ID: 9742736
Date: 2017-08-22
CPC Classifications: H04L,H04N

Claim:
1. A network device for descrambling an access controlled audio/video content stream, said network device being configured to be connected to a network router said network device comprising: a memory to store a unique address specific to the network device; a network input/output interface; a descrambler to descramble the audio/video content stream; and wherein the network device is configured to process a plurality of content streams in parallel by obtaining two or more content streams intended to the watermark engine and descrambling the obtained two or more content streams using respective content descrambling keys stored on the device before receipt of the streams: and wherein the audio/video content stream is descrambled by using a descrambling key securely received by said network device from a conditional access system server where the network device is recorded with a user identification and the unique address.