US PATENT SUBCLASS 315 / 383
.~.~.~ Intensity control of ray

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.~.~.~ Intensity control of ray {3}
384  DF  .~.~.~.~> Ray blanking
385  DF  .~.~.~.~> Ray unblanking
386  DF  .~.~.~.~> With ray control responsive to deflection circuit

DEFINITION

Classification: 315/383

(under subclass 379) Subject matter wherein the brightness of a trace on the screen of the cathode-ray tube is controlled in such a manner as to turn-off, turn-on, or vary the brightness of a spot produced by a cathode-ray on the screen of the cathode-ray tube.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12, for cathode-ray tube circuits which vary the intensity of a primary cathode-ray beam to influence the rate of secondary emission in a cathode-ray tube.

377, for cathode-ray tube deflection circuits with marker means in which the marker may be produced by intensification of the cathode-ray beam.

SEE OR SEARCH CLASS

342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation),

107+, 133, 139+, and 146 for pulse type distance and direction determination systems of the radar type wherein the display may be produced by intensity modulation of the cathode-ray beam in the system.