DIFF Subgroup
H03D 3/04 by counting or integrating cycles of oscillations
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Demodulation of angle-modulated oscillations > by detecting phase difference between two signals obtained from input signal > by counting or integrating cycles of oscillations
CPC:
Demodulation of angle-, modulated oscillations (H03D5/00, H03D9/00, H03D11/00 take precedence) > by detecting phase difference between two signals obtained from input signal (H03D3/28 - H03D3/32 take precedence; ; limiting arrangements H03G11/00) > by counting or integrating cycles of oscillations
No child classifications to compare. This is a leaf node in both IPC and CPC.