Patent ID: 7599604

Claim:
A video system, comprising: detection circuitry operative to detect pseudo-synchronization pulses associated with a copy protection scheme within a composite synchronization signal in dependence upon at least two timing signals, wherein detection of said pseudo-synchronization pulses associated with a copy protection scheme by said detection circuitry is independent of timing signals generated utilizing synchronization information within the composite synchronization signal, and wherein said detection circuitry comprises circuitry to: subsample said composite synchronization signal to create a subsampled signal; perform matched filtering on said subsampled signal; and further process said matched filtered subsampled signal using said at least two timing signals to generate a signal indicating the presence of said pseudo-synchronization pulses associated with a copy protection scheme; and timing circuitry operative to generate the at least two timing signals; wherein the at least two timing signals are generated independently of said synchronization information within the composite synchronization signal.