US PATENT SUBCLASS 315 / 385
.~.~.~.~ Ray unblanking

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

1  DF  CATHODE RAY TUBE CIRCUITS {11}
364  DF  .~ Cathode-ray deflections circuits {16}
379  DF  .~.~ With additional control of cathode ray {3}
383  DF  .~.~.~ Intensity control of ray {3}
385.~.~.~.~ Ray unblanking

DEFINITION

Classification: 315/385

(under subclass 383) Subject matter wherein the cathode-ray is turned on during normal operation of the cathode-ray tube and a trace appears on the screen of the cathode-ray tube.

SEE OR SEARCH CLASS

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems,

20+, for data responsive selective intensity control in connection with driving a cathode-ray tube.

348, Television,

635, for the unblanking of the cathode-ray beam of a color picture tube which may also include the deflection circuitry for the cathode-ray beam in a television processing circuit.