DIFF Subgroup
H03B 5/30 with frequency-determining element being electromechanical resonator
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Generation of oscillations using amplifier with regenerative feedback from output to input > with frequency-determining element being electromechanical resonator
CPC:
Generation of oscillations using amplifier with regenerative feedback from output to input (H03B9/00, H03B15/00 take precedence) > with frequency-determining element being electromechanical resonator
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H03B 5/32 being a piezoelectric resonator (selection of piezoelectric material H10N30/00) +2 CPC IPC+CPC Available in IPC and CPC
- H03B 5/40 being a magnetostrictive resonator (H03B5/42 takes precedence; selection of magneto-strictive material ; H10N30/00) IPC+CPC Available in IPC and CPC
- H03B 5/42 frequency-determining element connected via bridge circuit to closed ring around which signal is transmitted IPC+CPC Available in IPC and CPC