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PCE
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DIFF Subgroup
G09G 1/14

the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators > using single beam tubes > the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible

CPC:

Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; (cathode-ray oscilloscopes G01R13/20; ) > using single beam tubes (G09G1/26, G09G1/28 take precedence), > the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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  • G09G 1/143 CPC only CPC only
  • G09G 1/146 CPC only CPC only
  • G09G 1/18 a small local pattern covering only a single character, and stepping to a position for the following character, e.g. in rectangular or polar co-ordinates, or in the form of a framed star since 1980 IPC+CPC Available in IPC and CPC