Abstract: A method and apparatus for monitoring selected parameters of a video signal wherein the video parameters to be monitored are movingly or randomly contained in the video signal outside the vertical blanking signals and wherein the video signal includes a least one of a luminance signal having positive peaks and negative peaks, a chrominance signal having a peak voltage value comprising: determining at least one video parameter selected from among: (1) an instantaneous peak voltage level of the positive peaks in the luminance signal; (2) an instantaneous peak voltage level of the negative peaks in the luminance signal; (3) the peak voltage value of the chrominance signal; and (4) combinations thereof. Each determined video parameter is compared with a reference DC voltage value selected to correspond with the determined video parameter and an output indication of each such comparison is provided.

Abstract: A video processor is disclosed wherein each vertical sync pulse of a composite video signal is shifted to an intermediate amplitude a predetermined time period after the leading edge thereof, to defeat the synchronizing circuits of video tape recorders operating in the recording mode.

Abstract: A video processor for processing a video input signal provided by a skip-field video tape playback assembly, the video processor stripping the vertical sync pulses from the video input signal, generating interlaced video sync pulses, and adding the interlaced vertical sync pulses to the stripped video input signal to provide a video output signal having interlaced vertical sync pulses. Additional apparatus is disclosed to replace the horizontal sync pulses, the horizontal and vertical blanking pulses and the color bursts of the video input signal.