Touch sensitive system, apparatus and method for measuring signals of touch sensitive screen

A signal measurement and touch screen technology, applied in the field of touch screen, to achieve the effect of detection and noise reduction

Inactive Publication Date: 2017-03-15
EGALAX EMPIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to propose a signal measuring device and method for a touch control system and a touch

Method used

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[0076] The present invention will be described in detail as follows. However, in addition to the disclosed embodiments, the present invention can also be widely applied to other embodiments. The scope of the present invention is not limited by the embodiments, but is subject to the protection scope claimed by the patent. In order to provide a clearer description and enable those familiar with the art to understand the content of the present invention, the various parts in the illustration are not drawn according to their relative dimensions. The ratio of certain dimensions to other relevant dimensions will be highlighted. It seems exaggerated, and the irrelevant details are not completely drawn in order to keep the diagram concise.

[0077] Capacitive touch screens are susceptible to noise interference, especially from the human body touching the touch screen. The present invention adopts an adaptive driving and / or detection method to achieve the purpose of reducing noise interf

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Abstract

The present invention provides an apparatus for measuring signals of touch sensitive screen, which comprises multiple conductive strips including multiple parallel driving strips and multiple parallel sensing strips. Multiple intersecting areas are located at the intersections of these multiple driving and sensing strips. The apparatus comprises a driving circuit and a sensing circuit. The driving circuit sequentially provides a first driving signal and a second driving signal to a first set of the driving strips and a second set of the driving strips, respectively. The sensing circuit sequentially senses a first signal and a second signal of at least one sensing strips corresponding to the first driving signal and the second driving signal, respectively. The time duration of the first driving signal is different from the time duration of the second driving signal.

Description

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Claims

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Application Information

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Owner EGALAX EMPIA TECH INC
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