Patent ID: 6441847
Filing Date: 2002-08-27
Classification: H04B,H04N

Abstract:
A circuit configuration for evaluating a picture quality of a television picture, comprising:a sync pulse separator having an input for receiving a CVBS signal, a line synchronization output, and a picture synchronization output; a phase-locked loop having an input connected to said line synchronization output and having an output; a comparator for detecting interference pulses having a first input for receiving the CVBS signal, a second input for receiving a reference value, and an output; a counter for counting the interference pulses having a clock input connected to said output of said comparator and having a reset input selectively connected to said output of said phase-locked loop and said picture synchronization output; and a storage device having a clock input selectively connected to said output of said phase-locked loop and said picture synchronization output.