DIFF Subgroup
H04J 3/04 Distributors combined with modulators or demodulators
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Time-division multiplex systems > Details > Distributors combined with modulators or demodulators
CPC:
Time-division multiplex systems (H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q) > Details (electronic switching or gating H03K17/00) > Distributors combined with modulators or demodulators
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open