Audio signal amplifying circuit
US8600081B2 · kind B2 · utility
0Cited by
1References
8Claims
0Family size
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Inventors
Key dates
| Filing date | May 12, 2011 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Apr 11, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides an audio signal amplifying circuit for an electronic device including a processing chip and a speaker. The audio signal amplifying circuit includes an amplifying circuit and an inverting circuit connected to the processing chip to get a first control signal and invert the first control signal to generate a second control signal. The first control signal and/or the second control signal are used to control the operation mode of the amplifying circuit to be in an amplifying mode or in a non-amplifying mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.