US PATENT SUBCLASS 348 / 807
.~.~.~ Color convergence correction

Current as of: June, 1999
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348 /   HD   TELEVISION

739  DF  VIDEO DISPLAY {13}
805  DF  .~ Cathode-ray tube {5}
806  DF  .~.~ With distortion, alignment or focus {1}
807.~.~.~ Color convergence correction

DEFINITION

Classification: 348/807

Color convergence correction:

(under subclass 806) Subject matter including at least two electron beam deflection elements connected in a circuit which generates a time varying signal to permit the focusing and scanning of plural electron beams in the envelope of a cathode-ray tube in one of two directions at each and every point of a screen of the cathode-ray tube.