Automatic kinescope bias control system

Details Automatic kinescope bias control system Automatic kinescope bias control system

1985-04-23

1986-12-30

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 74, H04N 568, H04N 916

Patent

active

046333215

ABSTRACT:
A television receiver with a planar faceplate kinescope includes an automatic kinescope bias (AKB) control system wherein the kinescope electron gun is energized to induce a cathode output current, representative of the kinescope black image current level, in response to an auxiliary drive signal applied to the electron gun during AKB operating intervals. The auxiliary signal exhibits an amplitude for inducing the cathode current only during horizontal trace intervals encompassed by the interval when the auxiliary signal occurrs.

REFERENCES:
patent: 4263622 (1981-04-01), Hinn
patent: 4484228 (1984-11-01), Parker
patent: 4502079 (1985-02-01), Filliman

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