DIFF Subgroup
H04J 1/18 in which all the carriers are amplitude-modulated (H04J1/02 takes precedence )
Introduced: September 1968
Title
Titles differ between systems:
IPC: in which all the carriers are amplitude-modulated
CPC: in which all the carriers are amplitude-modulated (H04J1/02 takes precedence )
Full Title
Full titles differ between systems:
IPC:
Frequency-division multiplex systems > in which all the carriers are amplitude-modulated
CPC:
Frequency-division multiplex systems (H04J14/00 takes precedence) > in which all the carriers are amplitude-modulated (H04J1/02 takes precedence )
No child classifications to compare. This is a leaf node in both IPC and CPC.