Blanking Pulse

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blanking pulse [′blaŋk·iŋ ‚pəls]

(electronics)

A positive or negative square-wave pulse used to switch off a part of a television or radar set electronically for a predetermined length of time.

Blanking Pulse

a voltage pulse, usually of rectangular form, fed to the control electrode of a cathode tube to quench the beam on the retrace of a sweep (as it returns to the start). In a television picture signal the peak of the blanking pulse is at the black level and also serves as a base for the synchronizing pulses of the line and frame scans.

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