An 87&amp;#x00D7;49 mutual capacitance touch sensing IC enabling 0.5 mm-diameter stylus signal detection at 240 Hz-reporting-rate with palm rejection

Yoshida, Shigeaki; Hamaguchi, Mutsumi; Morishita, Takahiro; Shinjo, Shinji; Nagao, Akira; Miyamoto, Masayuki

doi:10.1109/asscc.2014.7008899

Cited by 3 publications

(2 citation statements)

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“…In Section 2, we briefly introduce the preliminary of touchscreen system. In Section 3, 4, 5, and 6, the palm rejections algorithm based on resistance sensing sensors [3], multi-frequencies driving [4], driving-sensing swapping method, and touch capacitance profiles filter are discussed [5], respectively. Finally, conclusion and open discussion are given in Section 7.…”

Section: Introductionmentioning

confidence: 99%

Palm rejection algorithms on touch screen communication system

Pham¹,

Nguyen²,

Nguyen³

et al. 2021

World J. Adv. Eng. Tech. Sci.

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This paper will discuss one of the most important problems in touch screen systems named palm rejection. Various solutions for palm rejection are discussed through the paper, which are based on hardware modules, software modules, and hybrid software-hardware modules. We hope that our proposed technical research with various solutions will be a great reference for engineers and scientists working on touch screen system design.

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Section: Introductionmentioning

confidence: 99%

Palm rejection algorithms on touch screen communication system

Pham¹,

Nguyen²,

Nguyen³

et al. 2021

World J. Adv. Eng. Tech. Sci.

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“…In a high speed display, the synchronous touch driving is deficient to avoid display noise and degrades the touch sensing performance. Therefore, it is essential to drive Tx input signal irrelevant to Hsync signal, called the asynchronous driving 3,4 .…”

Section: Introductionmentioning

confidence: 99%

P‐73: Innovative Controller for Touch‐Sensor Panel in Heavy‐Load Parasitic Capacitance

Lee

Kim

Lee

et al. 2021

Symp Digest of Tech Papers

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The innovative design of fully differential analog front end is swhich is the parasitic capacitance of a touch sensor is approximately 60% higher than a conventional smartphone. The newly developed touch sensor controller shows approximately 40 % higher SNR than a commercialized flagship smartphone, which is defined with the noise of peak to peak value in the touch signal on the zebra pattern display.

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