US PATENT SUBCLASS 315 / 365
.~.~ Symbol generator


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}
365.~.~ Symbol generator


DEFINITION

Classification: 315/365

(under subclass 364) Subject matter wherein the cathode-ray

tube includes a cathode-ray beam impenetrable member having at least an area in the shape of a symbol or a code pulse configuration which permits passage of the cathode-ray beam through only the area of the member at that point in the shape of the symbol or the pulse code configuration and the deflection means causes the cathode-ray beam to be deflected so the cathode-ray beam can pass through the area under the control of the electrical circuit and other character generators not provided for elsewhere.

(1) Note. Class 345, subclasses 17 and 26, includes character generators which form the symbol on a fluorescent screen of a cathode-ray tube. However, selective electrical control must be claimed. Included in Class 345, subclasses 10+ are symbol generators which form a cathode-ray pattern of the symbol by (1) a claimed raster scan of a cathode-ray beam synchronized with the control of the cathode-ray beam and by (2) a claimed line vector generation apparatus synchronized with the control of the cathode-ray beam. Also included are animation generators of the cathode-ray tube type.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8.51, for code translating systems generally, subclass 9 for symbol generators of the type found in subclass 365 where plural cathode-ray tubes are used.

13, for symbol generators of the type found in subclass 365 where plural distinct cathode-rays are utilized within a cathode-ray tube to form a character.

367, for one or more deflector circuits used in a single beam cathode-ray tube wherein a digital to analog device is used to create the deflection current or voltage required to deflect the cathode-ray beam of the tube. 391, for plural cathode-ray deflection circuits with or without a cathode-ray beam controlled by the deflection circuit.

399+, for coil type deflection circuits generally.

SEE OR SEARCH CLASS

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

10+, for cathode-ray tube display systems with selective electrical control which may include character generators and/or animation generators.

395, Information Processing System Organization, appropriate subclasses, and see the search class note in the class definition of this class (315).