CPC Subgroup
H03B 21/01 by beating unmodulated signals of different frequencies
Full Title
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
2 direct subcodes
Child Classifications
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- H03B 21/02 by plural beating, i.e. for frequency synthesis
- H03B 21/04 using several similar stages