Invention Grant
US07663432B2 Fully differential demodulator with variable gain, and method for demodulating a signal
有权
具有可变增益的全差分解调器和解调信号的方法
- Patent Title: Fully differential demodulator with variable gain, and method for demodulating a signal
- Patent Title (中): 具有可变增益的全差分解调器和解调信号的方法
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Application No.: US12032481Application Date: 2008-02-15
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Publication No.: US07663432B2Publication Date: 2010-02-16
- Inventor: Luciano Prandi , Carlo Caminada , Paolo Invernizzi
- Applicant: Luciano Prandi , Carlo Caminada , Paolo Invernizzi
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Agent Lisa K. Jorgenson; E. Russell Tarleton
- Priority: EP07425081 20070215
- Main IPC: G01C19/00
- IPC: G01C19/00 ; H03D1/00
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.
Public/Granted literature
- US20080197919A1 FULLY DIFFERENTIAL DEMODULATOR WITH VARIABLE GAIN, AND METHOD FOR DEMODULATING A SIGNAL Public/Granted day:2008-08-21
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