Patent ID: 6515711
Filing Date: 2003-02-04
Classification: H04N

Abstract:
Apparatus for correcting an aural carrier signal in a common amplifier system wherein the correcting serves to reduce cross-modulation distortion of said aural carrier signal caused by non-linearities of said common amplifier system and comprising:aural corrector means for receiving a modulated visual carrier signal comprised of a visual carrier signal modulated by a video baseband signal and a phase corrected aural carrier signal and providing therefrom a combined corrected aural carrier signal; means for combining said visual carrier signal with said combined corrected aural carrier signal to provide a corrected output carrier signal; said aural corrector means includes means for receiving said visual carrier signal and providing therefrom an in-phase visual signal and an out-of-phase visual signal; and first combiner means for receiving said in-phase visual signal and said phase corrected aural signal and providing therefrom a first combined signal.