DIFF Subgroup
H04J 1/05 using digital techniques
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Frequency-division multiplex systems > Details > Frequency-transposition arrangements > using digital techniques
CPC:
Frequency-division multiplex systems (H04J14/00 takes precedence) > Details > Frequency-transposition arrangements > using digital techniques
No child classifications to compare. This is a leaf node in both IPC and CPC.