US PATENT SUBCLASS 348 / 284
.~.~ Cathode-ray tube

Current as of: June, 1999
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348 /   HD   TELEVISION

207  DF  CAMERA, SYSTEM AND DETAIL {19}
266  DF  .~ With single image scanning device supplying plural color signals {4}
284.~.~ Cathode-ray tube {2}
285  DF  .~.~.~> Phase separable signals {1}
289  DF  .~.~.~> Frequency separable signals {2}

DEFINITION

Classification: 348/284

Cathode-ray tube:

(under subclass 266) Subject matter including a camera tube in which an optical image of an object is converted to a charge on a photosensitive target surface and then scanned by an electron beam to convert the charge image to an electrical signal.

(1) Note. Common cathode-ray tubes include iconoscope, orthicon, and vidicon.