Patent ID: 8234217
Filing Date: 2012-07-31
Classification: G06F,G11B,H04L,H04N

Abstract:
1. A method of operating a digital program playback device, comprising: receiving, via a first communications network, a plurality of data streams representative of a program including an encrypted data portion and an unencrypted data portion; identifying, from the received data stream, an identifier uniquely associated with the program; transmitting the program identifier and a device identifier that identifies the digital program playback device to an authorization device via a second communications network for authorization based on the program identifier and the device identifier, wherein the second communications network is distinct from the first communications network; receiving, via the second communications network, a decryption key in response to the transmission, once authorization is confirmed; and decrypting the data stream using the decryption key and generating an output signal for playback of the program, wherein the unencrypted data portion is processed for output before the encrypted data portion.