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Capacitive sensing apparatus, environment event detection method, and method for determining correction timing

A sensing device and event detection technology, applied in the fields of electrical digital data processing, instrumentation, computing, etc., to achieve the effect of improving accuracy and/or recognition rate

Active Publication Date: 2019-08-23
李尚礼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005]In view of the above problems, a detection mechanism is needed to understand the influence of the environment to be measured on the measured value of the capacitive sensing device, and determine which signal parameters to use To get the correct measurement value

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  • Capacitive sensing apparatus, environment event detection method, and method for determining correction timing
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  • Capacitive sensing apparatus, environment event detection method, and method for determining correction timing

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Embodiment Construction

[0036] Firstly, the method for determining the timing of calibration of a capacitive sensing device according to any embodiment of the present invention may be suitable for capacitive sensing devices, such as but not limited to touch panels, electronic drawing boards, handwriting tablets, and the like. In some embodiments, the capacitive sensing device can also be integrated with the display to form a touch screen. Moreover, the touch of the capacitive sensing device may be performed by a touch component such as a hand, a stylus, or a stylus.

[0037] figure 1 is a schematic block diagram of a capacitive sensing device according to an embodiment of the present invention. figure 2 for figure 1 A schematic diagram of an embodiment of a medium signal sensor. Please refer to figure 1 and figure 2 , the capacitive sensing device includes a signal processing circuit 12 and a signal sensor 14 . The signal sensor 14 is connected to the signal processing circuit 12 .

[0038] ...

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Abstract

A capacitive sensing apparatus, an event detection method for a measurement environment of the capacitive sensing apparatus, and a method for determining a correction timing of the capacitive sensingapparatus are applicable to a capacitive sensing apparatus. The capacitive sensing apparatus uses a signal simulation unit to directly simulate signal strength or a sensing signal of a touch, then determines, based on the simulated signal strength or sensing signal and an actually measured sensing signal, whether a measurement condition is suitable, and performs proper adjustment, thereby improving the accuracy and / or the identification rate of the capacitive sensing apparatus.

Description

technical field [0001] The present invention relates to a capacitive sensing technology, in particular to a capacitive sensing device, an event detection method for measuring the environment thereof, and a method for judging a correction timing thereof. Background technique [0002] In order to improve the convenience of use, more and more electronic devices use a touch screen as the operation interface, so that users can directly click on the screen on the touch screen to operate, thereby providing more convenient and humane optimized mode of operation. The touch screen is mainly composed of a display that provides a display function and a sensing device that provides a touch function. [0003] Generally speaking, the sensing device utilizes self-capacitance sensing technology and / or mutual capacitance sensing technology to know whether the panel is touched by the user. During the sensing process, when the sensing device detects a change in the capacitance value of a cert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/0418G06F3/044G06F3/0445G06F3/0446
Inventor 李尚礼
Owner 李尚礼