Circuits for amplitude demodulation and related methods
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United States of America Patent
Stats
-
Nov 26, 2019
Grant Date -
Jul 12, 2018
app pub date -
Oct 6, 2017
filing date -
Jan 11, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit for demodulating an input signal is described. The circuit may be configured to demodulate signals modulated with amplitude-based modulation schemes, such as amplitude shift keying (ASK). The demodulator may comprise a clock extractor configured to generate a clock signal in response to receiving an amplitude-modulated input signal, a phase shifter configured to generate a sampling signal by phase-shifting the clock signal by approximately π/2, and a sampler configured to sample the input signal in correspondence to one or more edges (such as one or more falling edges) of the sampling signal. In this way, the amplitude-modulated input signal may be sampled at its peak, or at least near its peak, thus ensuring high signal fidelity.
First Claim
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International Classification(s)
- 2017 Application Filing Year
- H04L Class
- 36365 Applications Filed
- 27259 Patents Issued To-Date
- 74.96 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H04L Class
- 0 % this patent is cited more than
- 6 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
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