DIFF Main Group
H03J 3/00 Continuous tuning (H03J7/00, H03J9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J5/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Continuous tuning
CPC: Continuous tuning (H03J7/00, H03J9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J5/00)
Full Title
Full titles differ between systems:
IPC:
Continuous tuning
CPC:
Continuous tuning (H03J7/00, H03J9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J5/00)
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
Child Classifications
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- H03J 3/20 of single resonant circuit by varying inductance only or capacitance only IPC+CPC Available in IPC and CPC
- H03J 3/22 of single resonant circuit by varying inductance and capacitance simultaneously IPC+CPC Available in IPC and CPC
- H03J 3/24 of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning IPC+CPC Available in IPC and CPC
- H03J 3/28 of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range IPC+CPC Available in IPC and CPC