DIFF Main Group
G08C 19/00 Electric signal transmission systems (G08C17/00 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Electric signal transmission systems
CPC: Electric signal transmission systems (G08C17/00 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Electric signal transmission systems
CPC:
Electric signal transmission systems (G08C17/00 takes precedence)
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
4 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G08C 19/02 in which the signal transmitted is magnitude of current or voltage (G08C19/36, G08C19/38 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
- G08C 19/12 in which the signal transmitted is frequency or phase of AC IPC+CPC Available in IPC and CPC
- G08C 19/30 in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels (G08C19/38 takes precedence) IPC+CPC Available in IPC and CPC
- G08C 19/38 using dynamo-electric devices (operated by pulses G08C19/20) IPC+CPC Available in IPC and CPC