Patent ID: 7650625

Claim:
A settop box for controlling an audio-video system comprising: a CPU; a digital video processor coupled to said CPU for processing video data, said digital video processor having a first input receiving live video data, a second input receiving recorded video data, a first multiplexer configured to select between said live video data and said recorded video data, a current clip buffer module storing a current video clip from said live video data, an expected clip buffer module storing an expected video clip from the live video data or recorded video data selected by said first multiplexer, and a compare module coupled to the current clip buffer module and the expected clip buffer module, wherein the compare module determines whether said current video clip sufficiently matches said expected video clip based upon a first threshold value; and a digital audio processor coupled to said CPU for processing audio data; wherein, in a first mode, one or more control functions are initiated when the current video clip data sufficiently matches the expected video clip data to record said live video data.