Drop-out correction inhibitor for preventing corruption of spatially non- correlated data

摘要

A drop-out correction circuit for use in a VCR includes a generator for developing a gating signal identifying selected horizontal lines of a video signal containing spatially non-correlated encoded data. A control signal developed in response to a drop-out detection signal and the gating signal is applied to a drop-out corrector for providing a drop- out corrected signal at an output terminal except during the occurrence of said selected lines. A noise cancellation circuit operative except during the selected horizontal lines may be coupled to the output of the drop- out corrector.