Fully differential demodulator with variable gain, and method for demodulating a signal
US7663432B2 · kind B2 · utility
19Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2008 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Apr 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1218
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A demodulator includes input terminals, for receiving an input signal, and an amplifier stage having a gain. The input signal is amplitude-modulated and is defined by a carrier signal at a carrier frequency and by a modulating signal. The demodulator includes, moreover, a gain-control stage, coupled to the amplifier stage for varying the gain of the amplifier stage according to a sinusoid of a frequency equal to the carrier frequency, on the basis of the carrier signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.