信号折叠电路和电子设备

By dynamically adjusting the reference voltage through a signal folding circuit, the problem of the signal dynamic range exceeding that of the digital-to-analog converter is solved, achieving lossless signal processing and reduced power consumption.

CN120301426BActive Publication Date: 2026-07-17UNIV OF ELECTRONICS SCI & TECH OF CHINA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Filing Date
2025-03-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, when the dynamic range of a signal exceeds the range of a digital-to-analog converter, signal distortion occurs. This is especially true when large and small signals are received simultaneously, as the superimposed dynamic ranges exceed the receiver's dynamic range, affecting signal quality.

Method used

By employing a signal folding circuit, and through a dynamic threshold selection circuit and an arithmetic circuit, the first and second reference voltages are dynamically adjusted to ensure that the output signal is within the dynamic range, thereby reducing the dynamic range of the signal folding circuit and thus reducing power consumption.

Benefits of technology

Without sacrificing signal accuracy, the dynamic range of the signal folding circuit is reduced, and the power consumption of the circuit is lowered, thus achieving lossless signal processing and recovery.

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Abstract

本申请提供一种信号折叠电路和电子设备,涉及电路技术领域该信号折叠电路用于接收输入信号并输出输出信号,输入信号和输出信号为模拟信号。信号折叠电路包括动态门限选择电路和运算电路,动态门限选择电路,用于根据第一控制信号输出第一参考电压和第二参考电压,第一参考电压大于第二参考电压;运算电路,运算电路用于根据输入信号、第一参考电压和第二参考电压输出输出信号,输出信号等于输入信号减去或加上第一参考电压与第二参考电压之差的整数倍,且输出信号的电压值小于或等于第一参考电压,输出信号的电压值大于或等于第二参考电压;其中,第一控制信号由运算电路根据输出信号输出。该信号折叠电路用以解决输入信号动态范围大的问题。
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