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PCE
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DIFF Subgroup
H04L 27/04

Modulator circuits; Transmitter circuits

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Modulated-carrier systems > Amplitude-modulated carrier systems, e.g. using on/off keying; Single sideband or vestigial sideband modulation > Modulator circuits; Transmitter circuits

CPC:

Modulated-carrier systems > Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation (H04L27/32 takes precedence) > Modulator circuits; Transmitter circuits

No child classifications to compare. This is a leaf node in both IPC and CPC.