Television – Image signal processing circuitry specific to television – Amplifiers
Patent
1992-07-17
1994-03-29
Groody, James J.
Television
Image signal processing circuitry specific to television
Amplifiers
348806, H04N 323
Patent
active
052990095
ABSTRACT:
A reverse feedback amplifier which generates a correction current having two oscillations per line period is used to eliminate geometric distortions on the screen on a television kinescope. The reverse feedback amplifier includes an output transistor, a resonance transformer and a feedback network. An improvement of the amplifier includes a switch and a resistor for decreasing the output voltage of the reverse feedback amplifier during the scanning of the center portion of the screen.
REFERENCES:
patent: 4625154 (1986-11-01), Willis
patent: 4682085 (1987-07-01), Haferl et al.
patent: 4968920 (1990-11-01), Hartmann et al.
Laufe Martin
Ohnemus Fritz
Deutsche Thomson-Brandt GmbH
Groody James J.
Harvey David E.
Sragow Daniel E.
Tripoli Joseph S.
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