Patent ID: 6388700
Filing Date: 2002-05-14
Classification: H04N

Abstract:
A method of operating a video signal processing system for producing an output signal suitable for coupling to a display device for producing a displayed image, and having the option of producing the output signal to represent a main picture and one or more auxiliary pictures (AP), ratings control (RC) capability which includes means for an authorized person to limit the display of programs having ratings beyond a selected level, and auxiliary information (AI) processing capability which includes means for a viewer to choose to display auxiliary information comprising closed captioning along with a picture, and a single stripper for extracting auxiliary data from a portion of one or more video signals comprising:using said single stripper to process RC information for both the main picture and the auxiliary picture when the RC option has been invoked by cycling between main and auxiliary; and disabling the AP capability when the auxiliary information display option has been enabled.