DIFF Subgroup
H04L 27/16 Frequency regulation arrangements
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Modulated-carrier systems > Frequency-modulated carrier systems, i.e. using frequency-shift keying > Frequency regulation arrangements
CPC:
Modulated-carrier systems > Frequency-modulated carrier systems, i.e. using frequency-shift keying (H04L27/32 takes precedence) > Frequency regulation arrangements
No child classifications to compare. This is a leaf node in both IPC and CPC.