Amplifier for a video signal from an image pick-up device

Details Amplifier for a video signal from an image pick-up device Amplifier for a video signal from an image pick-up device

1977-09-26

1979-06-26

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 521

Patent

active

041594851

ABSTRACT:
A clamping circuit in a video chain of a camera features a series L-C network in a feedback circuit. Interference in the video signal, resulting from the occurrence of microphony in the pick-up tube, can thus be suppressed. When the L-C network is suitably detuned, the resonant frequency signal (microphony frequency) of the grid of the pick-up tube can be fully compensated for in the video signal as regards amplitude and phase using adequate feedback.

REFERENCES:
patent: 3560648 (1971-02-01), Kitsopoulos
patent: 3829606 (1974-08-01), Kawamata et al.
patent: 3845326 (1974-10-01), Godden
The International Dictionary of Physics and Electronics.COPYRGT. 1956, pp. 337, 777.

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