CPC Subgroup
H03D 3/26 by means of sloping amplitude/frequency characteristic of tuned or reactive circuit (H03D3/28 - H03D3/32 takes precedence)
Full Title
Demodulation of angle-, modulated oscillations (H03D5/00, H03D9/00, H03D11/00 take precedence) > by means of sloping amplitude/frequency characteristic of tuned or reactive circuit (H03D3/28 - H03D3/32 takes precedence)