Signal processing apparatus for color systems utilizing separate luminance signal pickup

Claim 1

IN APPARATUS FOR PROCESSING SIGNALS IN A COLOR TELEVISION SYSTEM IN WHICH THERE ARE PRODUCED BY A PICKUP DEVICE A LUMINANCE SIGNAL AND RED, GREEN AND BLUE COLOR SIGNALS, THE COMBINATION COMPRISING: AN AMPLIFIER HAVING INDIVIDUAL CHANNELS RESPECTIVELY FOR SAID ALUMINANCE SIGNAL AND RED, GREEN AND BLUE COLOR SIGNALS; A FIRST MATRIX COUPLED TO RECEIVE SAID COLOR SIGNALS PRODUCED BY SAID PICKUP DEVICE AND OPERATIVE TO CONVERT THEM INTO TWO COLOR DIFFERENCE SIGNALS FOR FURTHER PROCESSING PERPARATORY TO TRANSMISSION, EACH COLOR DIFFERENCE SIGNAL INCLUDING DIFFERENT PROPORTIONS OF SAID RED, GREEN AND BLUE COLOR SIGNALS MUNUS ANY LUMINANCE SIGNAL INFORMATION; A SECOND MATRIX COUPLED TO RECEIVE SAID LUMINANCE AND COLOR DIFFERENCE SIGNALS AND OPERATIVE TO CONVERT THEM INTO RED, GREEN AND BLUE COLOR SIGNALS INCLUDING SAID LUMINANCE SIGNAL INFORMATION; MEANS FOR SELECTING THE ONE OF SAID CONVERTED RED, GREEN AND BLUE COLOR SIGNALS HAVNG THE LARGEST INSTANANEOUS AMPLITUDE TO PRODUCE A FIRST CONTROL SIGNAL; MEANS FOR SELECTING THE ONE OF SAID CONVERTED RED, GREEN AND BLUE COLOR SIGNALS HAVING THE SMALLEST INSTANTANEOUT AMPLITUDE TO PRODUCE A SECOND CONTROL SIGNAL; AND MEANS FOR APPLYING SAID CONTROL SIGNALS TO UTILIZATION APPARATUS INCLUDING SAID AMPLIFIER FOR CONTROLLING ITS OPERATION.