DIFF Subgroup
G01R 29/26 Measuring noise figure; Measuring signal-to-noise ratio
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Arrangements for measuring or indicating electric quantities not covered by groups > Measuring noise figure; Measuring signal-to-noise ratio
CPC:
Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00 > Measuring noise figure; Measuring signal-to-noise ratio
No child classifications to compare. This is a leaf node in both IPC and CPC.