Optical multiplex systems

Introduced: January 1990

Of 8 combined children, 4 exist in both systems.

4 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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H04J 14/002 CPC only CPC only
H04J 14/005 +1 CPC CPC only CPC only
H04J 14/02 Wavelength-division multiplex systems since 1990 +10 CPC IPC+CPC Available in IPC and CPC
H04J 14/04 Mode multiplex systems since 1990 IPC+CPC Available in IPC and CPC
H04J 14/05 +1 CPC CPC only CPC only
H04J 14/06 Polarisation multiplex systems since 1990 IPC+CPC Available in IPC and CPC
H04J 14/07 CPC only CPC only
H04J 14/08 Time-division multiplex systems since 1990 +2 CPC IPC+CPC Available in IPC and CPC