Digital radio frequency receiver
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United States of America Patent
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-
Jan 9, 1990
Issued Date -
N/A
app pub date -
Jul 24, 1986
filing date -
Apr 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digital radio receiver is described. The digital receiver of the present invention contemplates a digital radio receiver which operates on a received analog signal which has been converted to a digital form after preselection at the output of the antenna. The digital receiver of the present invention comprises a preselector, a high-speed analog-to-digital (A/D) converter, a digitally implemented intermediate-frequency (IF) selectivity section having an output signal at substantially baseband frequencies, and digital signal processor (DSP) circuit performing demodulation and audio filtering. The radio architecture of the present invention is programmably adaptable to virtually every known modulation scheme and is particularly suitable for implementation on integrated circuits.
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