Pointing stick sensing method

A sensing method and touch point technology, applied in the field of signal sensing, can solve the problems of decreased accuracy and sensitivity of touch panels, breakpoints of touch operations, and affecting the accuracy and convenience of touch operations, etc. Achieve the effect of enhancing sensing accuracy, maintaining sensitivity and accuracy

Inactive Publication Date: 2012-06-13
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the user is under the condition of noise interference, the same operation process may cause the accumulated value in the current accumulation threshold counter to zero due to the noise interference problem, resulting in a touch breakpoint in the touch operation.
The touch panel described above corresponds to the user's touch operation to display the lines L2 and L3, and the touch results also affect the accuracy and convenience of the touch operation
Therefore, the touch point sensing method described so far may lead to a significant decrease in the accuracy and sensitivity of the touch panel.

Method used

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Examples

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Embodiment Construction

[0037] Please refer to figure 2 , figure 2 It is a flowchart of steps of a touch point sensing method according to an embodiment of the present invention. First, in step S201, a storage area is provided. The storage area has the ability to temporarily and / or permanently store data. The storage area can be, for example, a volatile memory (eg, DRAM, EDRAM, SRAM, etc.) and / or a non-volatile memory (ROM, PROM, EAROM, EPROM, EEPROM, and flash memory, etc.).

[0038] The storage area can be set in a smart phone, a tablet computer or other types of information processing devices, or can be set outside the information processing device, and the data can be transmitted through wired or wireless transmission technology. Furthermore, the storage area may be composed of at least one storage unit, for example. The storage unit may be, for example, a register and / or a counter. In other words, each register or counter corresponds to record a touch point.

[0039] Next, in step S203, ...

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Abstract

The invention discloses a pointing stick sensing method, comprising the steps of providing a storage area; detecting a first value corresponding to one pointing stick at a first time; when the first value exceeds a first critical value, adding 1 to a judgment parameter corresponding to the pointing stick in the storage area; when the first value does not exceed the first critical value, making zero the judgment parameter corresponding to the pointing stick in the storage area; and when the judgment parameter reaches a second critical value, judging the corresponding pointing stick in a touched state. By the pointing stick sensing method of the invention, the noise interference problem during the pointing stick sensing process can be improved.

Description

technical field [0001] The invention relates to a signal sensing method, in particular to a touch point sensing method. Background technique [0002] At present, the touch panel technology generally has the following types: embedded type, projected resistive type, capacitive type, optical type, electromagnetic type, and ultrasonic type. Taking the projected capacitive touch panel as an example, it is currently widely used in other types of information processing devices such as smart phones and tablet computers. [0003] Since the projected capacitive touch panel will be affected by different environmental background noise sources as the environment changes, further affecting the sensitivity of the touch operation. Therefore, some current touch point sensing methods use a single cumulative critical counter to determine whether a real touch point occurs. However, when the user performs touch operations in an environment where the background noise is strong or is susceptible...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 李秉寰何程翔许育民
Owner AU OPTRONICS CORP
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