DIFF Subgroup
H03B 21/01 by beating unmodulated signals of different frequencies
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Generation of oscillations by combining unmodulated signals of different frequencies > by beating unmodulated signals of different frequencies
CPC:
Generation of oscillations by combining unmodulated signals of different frequencies (H03B19/00 takes precedence; frequency changing circuits in general H03D) > by beating unmodulated signals of different frequencies
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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