DIFF Subgroup
H04L 27/227 using coherent demodulation
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Modulated-carrier systems > Phase-modulated carrier systems, i.e. using phase-shift keying > Demodulator circuits; Receiver circuits > using coherent demodulation
CPC:
Modulated-carrier systems > Phase-modulated carrier systems, i.e. using phase-shift keying (H04L27/32 takes precedence) > Demodulator circuits; Receiver circuits > using coherent demodulation
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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