Back to results
US 12,395,131 B2Granted
Amplifier circuit and sonar
AssigneeFuruno Electric Co., Ltd.
InventorFutoshi Kondo
Life of this patent
Estimating the term…
Abstract
An amplifier circuit to be used in a sonar is described. The amplifier circuit includes a transducer and a matching circuit. The transducer has an impedance characteristic having a resonance frequency and an anti-resonance frequency higher than the resonance frequency. The matching circuit is connected to the transducer. The impedance characteristic of the transducer connected to the matching circuit has a first resonance frequency and a second resonance frequency higher than the first resonance frequency.
Claims18
An amplifier circuit to be used in a sonar, the amplifier circuit comprising:
- a transmission amplifier;
- a transducer;
- and
- a matching circuit arranged to connect the transmission amplifier to the transducer so as to form a series circuit,
- wherein the transducer has a first impedance characteristic comprising a resonance frequency and an anti-resonance frequency higher than the resonance frequency, and
- wherein the transducer connected to the matching circuit has a second impedance characteristic different from the first impedance characteristic, the second impedance characteristic comprising a first resonance frequency and a second resonance frequency higher than the first resonance frequency.
3 more elements
Dependencies are inferred from the claim text.