Television camera having a beam current control circuit

Details Television camera having a beam current control circuit Television camera having a beam current control circuit

1980-09-26

1982-12-21

Martin, John C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 50, H04N 519

Patent

active

043652719

ABSTRACT:
A television camera comprising a control stage and a setting stage for the beam current control of an electron beam in a pick-up tube. Via a video frequency picture signal amplifier suitable for processing the picture signal generated by the pick-up tube, the picture signal generated by the pick-up tube is superimposed via a coupling capacitor as a control voltage on the setting voltage for the control electrode of the pick-up tube. A stable beam current control without oscillations is the result.

REFERENCES:
patent: 3315034 (1967-04-01), White
patent: 3999011 (1967-12-01), Sato et al.
patent: 4151552 (1979-04-01), Sato et al.
patent: 4190865 (1980-02-01), Bendell

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