TREA

Continuous tuning

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Industry

  • CPC
  • H03J3/00
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Parent Industries

HELECTRICITY H03Electronic circuits H03JTUNING RESONANT CIRCUITS SELECTING RESONANT CIRCUITS

Current Industry

H03J3/00Continuous tuning

Sub Industries

H03J3/02Details H03J3/04Arrangements for compensating for variations of physical values H03J3/06Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges H03J3/08by varying a second parameter simultaneously with the tuning H03J3/10Circuit arrangements for fine tuning H03J3/12Electrically-operated arrangements for indicating correct tuning H03J3/14Visual indication H03J3/16Tuning without displacement of reactive element H03J3/18by discharge tube or semiconductor device simulating variable reactance H03J3/185with varactors H03J3/20of single resonant circuit by varying inductance only or capacitance only H03J3/22of single resonant circuit by varying inductance and capacitance simultaneously H03J3/24of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency H03J3/26the circuits being coupled so as to form a bandpass filter H03J3/28of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range H03J3/30Arrangements for ensuring tracking with variable inductors H03J3/32Arrangements for ensuring tracking with variable capacitors
Industries

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Patents Applicationslast 30 patents