VIDEO/AUDIO NOISE REDUCTION CONTROL METHOD

摘要

PURPOSE:To realize a satisfactory video/audio noise reduction control method so that video /audio noise reduction can be automatically set at a CATV terminal equipment according to a command from a center. CONSTITUTION:A signal from the center is inputted to a video/audio demodulation circuit 3 tuned by a tuning circuit 2. Video/audio signals demodulated by the video/audio demodulation circuit 3 are inputted to a video/ audio noise reduction control circuit 4. Data simultaneously transmitted from the center are demodulated at a data demodulation circuit 5 and afterwards inputted to a microcomputer circuit 6 and video/audio noise reduction control is executed.