Reception Circuit Feedback Control for Spatial Noise Limiting
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Solution Overview
Problem
Existing wireless communication systems face challenges in maintaining high signal quality due to spatial noise exceeding the input dynamic range of reception circuits, leading to signal degradation and increased data errors.
Innovation Solution
A reception apparatus with a control circuit that uses feedback control based on current consumption to adjust reception signals, ensuring they fit within the input dynamic range by generating a feedback voltage proportional to the total current consumption of the reception circuit, thereby eliminating spatial noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If electromagnetic field coupling is used for wireless communication, then data transmission speed is improved, but spatial noise exceeds the input dynamic range of the reception circuit causing signal degradation
Solution Approach 1:
The patent implements feedback control by monitoring the current consumption of the reception circuit and adjusting the gain of the reception circuit accordingly. When spatial noise causes the input voltage to exceed the dynamic range, the feedback mechanism reduces the gain to bring the signal back within the acceptable range, thus maintaining signal quality while preserving high-speed communication capability
Solution Approach 2:
The patent dynamically changes the gain parameter of the reception circuit based on the detected current consumption level. By adjusting this parameter in real-time according to the noise conditions, the system maintains optimal signal quality without sacrificing transmission speed
2Power
If the input voltage exceeds the input dynamic range of the differential amplifier, then spatial noise amplification occurs, but the reception signal quality deteriorates
Solution Approach 1:
The feedback control circuit monitors the current consumption of the differential amplifier and adjusts the reception circuit gain to prevent the input voltage from exceeding the dynamic range. This ensures that spatial noise is not excessively amplified while maintaining acceptable signal quality
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively restricts spatial noise, preventing reception signals from exceeding the input dynamic range, thereby improving signal quality and reducing data errors.
Implementation Method 1
Japanese Patent Application Laid-Open No. 2005-159480 implements wireless communication through electromagnetic field coupling by using two different reception electrodes
Implementation Method 2
A reception apparatus with a control circuit that uses feedback control based on current consumption to adjust reception signals
Data Source
AI summary
A reception apparatus includes a reception circuit configured to receive reception signals, and a control circuit configured to control the reception signals to be input to the reception circuit by executing a feedback control according to a current consumption of the reception circuit.