US PATENT SUBCLASS 315 / 369
.~.~ Target controls deflection circuit


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}
369.~.~ Target controls deflection circuit


DEFINITION

Classification: 315/369

(under subclass 364) Subject matter wherein the cathode-ray tube includes a target, a cathode- ray beam source, and an electrical circuit. The electrical circuit includes circuitry connected to the target to correct or regulate the deflection of the cathode-ray beam through the deflection means as a function of the beam hitting the target.

(1) Note. This subclass provides for retrace control due to impingement of the cathode-ray on a target.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12.1, and 13.1, for cathode-ray tubes with secondary emission stages and plural cathode-rays, respectively, which may include means on the target thereof for control of the deflection circuit.

SEE OR SEARCH CLASS

358, Facsimile,

67+, for a cathode-ray tube type color television display having circuitry to sense the ray beam to control or indicate the position of the beam.