Color television CRT beam current correction circuit

Details Color television CRT beam current correction circuit Color television CRT beam current correction circuit

1978-07-28

1980-04-29

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 65, 358 74, H04N 920

Patent

active

042008824

ABSTRACT:
Multi-gun color television display apparatus having for each gun an identical beam current reference level control system wherein the relative position of a reference level in the video signal and a setting voltage of the electron guns are periodically shifted for obtaining, for the control system outside the measuring periods, a coincidence of the reference level in the video signal and the cut-off point of each of the electron guns for a proper color rendition at a low brightness.

REFERENCES:
patent: 4064417 (1977-12-01), Smith

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