18183984. HIGH-SPEED LOW-DISTORTION ENVELOPE DETECTOR AND METHOD THEREOF simplified abstract (REALTEK SEMICONDUCTOR CORP.)
Contents
HIGH-SPEED LOW-DISTORTION ENVELOPE DETECTOR AND METHOD THEREOF
Organization Name
Inventor(s)
Chia-Liang (Leon) Lin of Fremont CA (US)
Ting-Hsu Chien of San Jose CA (US)
HIGH-SPEED LOW-DISTORTION ENVELOPE DETECTOR AND METHOD THEREOF - A simplified explanation of the abstract
This abstract first appeared for US patent application 18183984 titled 'HIGH-SPEED LOW-DISTORTION ENVELOPE DETECTOR AND METHOD THEREOF
The abstract describes a method of envelope detection using a common-mode source-follower (CMSF) to process RF signals and establish negative feedback control loops.
- RF signal is received with different voltages at two nodes
- Common-mode source-follower (CMSF) processes the voltages and outputs a current
- First negative feedback control loop is established using a current-controlled current source (CCCS)
- Second negative feedback control loop is established using a voltage-controlled current source (VCCS)
Potential Applications: - Radio frequency signal processing - Envelope detection in communication systems - Signal amplification and conditioning
Problems Solved: - Efficient processing of RF signals - Accurate envelope detection - Stable control loops for signal conditioning
Benefits: - Improved signal quality - Enhanced control over signal processing - Increased efficiency in communication systems
Commercial Applications: Title: "Advanced Envelope Detection Technology for Communication Systems" This technology can be utilized in: - Wireless communication devices - Radar systems - Signal processing equipment for telecommunications industry
Questions about Envelope Detection Technology: 1. How does envelope detection improve signal processing in communication systems?
Envelope detection helps extract the varying amplitude information from modulated signals, allowing for more accurate signal processing.
2. What are the key components of a common-mode source-follower (CMSF) in envelope detection?
The CMSF consists of parallel source followers that process input voltages and output a combined current for further signal conditioning.
Original Abstract Submitted
A method of envelope detection operates by receiving a RF (radio frequency) signal having a first voltage at a first node and a second voltage at a second node; using a common-mode source-follower (CMSF) having a first source follower and a second source follower connected in parallel and configured to receive the first voltage and the second voltage, respectively, and jointly output a first current to a third node in accordance with a sum of a second current and a third current received via a fourth node; establishing a first negative feedback control loop by converting the first current into the third current using a current-controlled current source (CCCS); and establishing a second negative feedback control loop by converting a drain voltage at the third node into the second current using a voltage-controlled current source (VCCS).
