Video output signal clamping circuit

Details Video output signal clamping circuit Video output signal clamping circuit

H - Electricity

04

N

350/83

H04N 5/57 (2006.01) H04N 5/18 (2006.01)

Patent

CA 1245346

ABSTRACT In a wideband video signal processing system, a video signal is capacitively coupled to a kinescope via a signal path. A video signal clamping diode is coupled from the video signal path to a low impedance point in a feedback path of a keyed switching transistor. Parasitic capacitances associated with the clamping diode and with the output of the switching transistor are decoupled from the video signal path by means of a first decoupling resistor, and a second decoupling resistor included in the feedback path, respectively.

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