研究目的
Reducing common-mode noise and global multivalued offset in touch screen systems to improve signal-to-noise ratio (SNR) and reduce power consumption.
研究成果
The CDS algorithm effectively reduces low-frequency common-mode noise and global multivalued offsets in touchscreen systems, achieving a significant SNR enhancement of 7.6 dB. This reduction in noise and offsets leads to decreased detection errors and lower power consumption.
研究不足
The technique introduces higher frequency noise within a certain bandwidth depending on the sampling frequency, which may require additional filtering.
1：Experimental Design and Method Selection:
The study applies the correlated double sampling (CDS) algorithm to touch signals treated as images for noise and offset reduction.
2：Sample Selection and Data Sources:
Experiments were conducted on an unspecified size touchscreen panel with parameters detailed in the paper.
3：List of Experimental Equipment and Materials:
The test bed includes a touchscreen panel with an operating voltage of 10 V and a refresh rate of 60 Hz.
4：Experimental Procedures and Operational Workflow:
The system scans the panel periodically, applies the CDS algorithm to the retrieved data, and updates the noise reference frame.
5：Data Analysis Methods:
The effect of CDS is analyzed using normalized output PSD plots to evaluate SNR enhancement.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
