Luminance signal noise suppressor.

摘要

A luminance signal noise suppressor for suppressing noise of a video luminance signal (a) automatically in a television receiver or the like in response to possible large noise which is detected as a high voltage by detecting high frequency components of an input video luminance signal band (a), and a noise suppression circuit (5) is enabled or the correction quantity of a contour correction circuit (10) is decreased. <IMAGE>