Title:
AM RECEIVER AND DEMODULATOR
Document Type and Number:
WIPO Patent Application WO2004095726
Kind Code:
B1
Abstract:
An amplitude modulation receiver including an antenna (10) for receiving a signal (1) and an input filter (12) connected to the antenna. A variable gain amplifier (16) is connected to the input filter and is responsive to a gain control signal. An A/D converter is connected to the variable gain amplifier and is responsive to a sampling signal and provides a sampled digital signal. A D/A converter (22) receives a demodulated signal and provides an analog output signal. A controller (20) receives and demodulates the sampled digital signal from the A/D converter, generates the gain control signal for the variable gain amplifier, generates the sampling signal for the A/D converter, and provides the demodulated signal to the D/A converter. The demodulation and generation of the gain control signal and the sampling signal are performed in software.
Inventors:
IANCU DANIEL
Application Number:
PCT/US2004/006866
Publication Date:
January 20, 2005
Filing Date:
March 08, 2004
Export Citation:
Assignee:
SANDBRIDGE TECHNOLOGIES INC (US)
International Classes:
H03G3/30; H04B1/28; (IPC1-7): H04B1/28
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