High signal-to-noise ratio amplifier with multiple output modes
US11309839B2 · kind B2 · utility
1Cited by
5References
17Claims
0Family size
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Key dates
| Filing date | Feb 18, 2020 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jun 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G2201/103
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A multi-stage amplifier with a high signal-to-noise ratio is introduced. Multiple amplification stages are cascaded between an input terminal and an output terminal of the amplifier. A controller switches the output stage among the multiple amplification stages from a normal mode to an attenuation mode in response to the amplifier input being lower than the threshold. In the attenuation mode, the output stage provides an attenuation resistor coupled in series with the load resistor of the amplifier. Noise is successfully attenuated by the attenuation-mode output stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.