DIFF Subgroup
H03M 1/1066 Full Title
Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00) > Calibration or testing
H03M 1/1066 Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M3/00) > Calibration or testing