Amplifier circuit for a parametric transducer and a related audio device
US10757506B2 · kind B2 · utility
1Cited by
0References
9Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 27, 2015 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Oct 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2217/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An amplifier circuit for a parametric transducer, comprising: a signal processor for processing an input signal into first and second signals; and at least a pair of output stages arranged to respectively receive the first and second signals for generating amplified first and second signals respectively, which are provided to operate the parametric transducer. The input, first and second signals are arranged with a substantially similar frequency to cause a switching frequency of the amplifier circuit to be matched to a carrier frequency of the parametric transducer. A related audio device is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.