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PCE
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DIFF Subgroup
G09G 3/06

using controlled light sources

Introduced: January 1980

Full Title

Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes > for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments > using controlled light sources

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1980.

Child Classifications

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  • G09G 3/08 using incandescent filaments since 1980 IPC+CPC Available in IPC and CPC
  • G09G 3/10 using gas tubes since 1980 IPC+CPC Available in IPC and CPC