Feedback display driver stage

Details Feedback display driver stage Feedback display driver stage

1985-07-25

1986-12-23

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 568, H04N 916

Patent

active

046315950

ABSTRACT:
In a television receiver including a kinescope, a kinescope driver stage includes a video amplifier with an associated feedback path. A first emitter follower transistor couples amplified video signals from the amplifier output to the kinescope. A second emitter follower transistor, included in the feedback path for maintaining the continuity thereof, couples amplified video signals to the kinescope when a normally nonconductive diode coupled between the outputs of the emitter follower transistors is rendered conductive in the presence of large video signal amplitude transitions sufficient to render the first follower transistor nonconductive.

REFERENCES:
patent: 4387405 (1983-06-01), Hinn
patent: 4547799 (1985-10-01), Rodgers, III
patent: 4577234 (1986-03-01), Harlan
Technical Publication for DIGIT 2000 Digital TV System, ITT Corp., Figure 3-5, p. 61.

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