⚡ 本页包含 AI 生成的分析内容，仅供参考
提出了一种基于多频率驱动的电容触摸系统，支持主动笔的压力和倾斜角度表达，实现了3.9kHz的高帧率，解决了主动笔低SNR和有限绘画表达的问题。
Young-Hwan Kim2, Han-Hee Hong2, Jae-Hun Ye4, Sung-Jin Jung1, Seung-Hwan Lee1, Ji-Yong Jeong1, Kwang-Hyun Baek3, Seong-Kwan Hong1, Oh-Kyong Kwon1 Hanyang University, Seoul, Korea Leading UI, Anyang, Korea 3 Chung-Ang University, Seoul, Korea 4 MiraeTNS, Cheongju, Korea 1 2 As the demand for interactive displays continues to increase, capacitive touch systems (CTSs) with stylus-based drawing have become indispensable [1-4]. Passive styli are widely used because of their low-cost implementation, but have low SNR and limited drawing expressions [1]. Active styli have gained interest to solve these problems [4]. The pressure of an active stylus can be expressed using a pressure-to-capacitance transducer [3,4], but the tilt angle has not been reported yet. In addition, analog front-end (AFE) ICs with high frame rates are in demand in response to the fast movements of finger and active styli. Conventional AFE
Jae-Sung An1, Sang-Hyun Han2, Ju Eon Kim3, Dong-Hyun Yoon3,