DIFF Subgroup
H04B 7/12 Frequency diversity
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Radio transmission systems, i.e. using radiation field > Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas > Frequency diversity
CPC:
Radio transmission systems, i.e. using radiation field (H04B10/00, H04B15/00 take precedence) > Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas (RAKE receivers H04B1/7115) > Frequency diversity
No child classifications to compare. This is a leaf node in both IPC and CPC.