DIFF Main Group
H04B 14/00 Transmission systems not characterised by the medium used for transmission (details thereof H04B1/00)
Introduced: January 1985
Title
Titles differ between systems:
IPC: Transmission systems not characterised by the medium used for transmission
CPC: Transmission systems not characterised by the medium used for transmission (details thereof H04B1/00)
Full Title
Full titles differ between systems:
IPC:
Transmission systems not characterised by the medium used for transmission
CPC:
Transmission systems not characterised by the medium used for transmission (details thereof H04B1/00)
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
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- H04B 14/02 characterised by the use of pulse modulation (in radio transmission relays H04B7/17) since 1985 +2 CPC IPC+CPC Available in IPC and CPC