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Touch sensing device and its realizing method

A technology of sensing device and realization method, which is applied in the directions of instruments, electrical digital data processing, input/output process of data processing, etc., can solve the problems of large power consumption, complex structure and circuit, misoperation, etc., achieve simple circuit, improve Sensitivity and effects of manufacturing cost reduction

Inactive Publication Date: 2007-08-29
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Although the above-mentioned patented technology has been improved in performance, such as fast response speed, high resolution, and simple operation, its structure and circuit are relatively complicated, the production cost is also high, and its power consumption is large, and the accuracy of finger sensing Not prone to misuse

Method used

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  • Touch sensing device and its realizing method
  • Touch sensing device and its realizing method
  • Touch sensing device and its realizing method

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Embodiment Construction

[0015] Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a circuit diagram of the touch sensing device, and FIG. 2 is a pulse change diagram of a signal input terminal of the microcontroller before and when an object is touched. The touch sensing device includes a differential signal source 11 , two conductors 12 , a sensor 13 , an integrating circuit 14 , a microcontroller 15 and a signal processing circuit 16 . The integrating circuit 14 is composed of a resistor 141 and a first capacitor 142 . The microcontroller 15 includes an initial signal output terminal O1 , a detection signal output terminal O2 and a signal input terminal In. The positive and negative output ends of the differential signal source 11 are respectively connected to one of the two conductors 12, and the other ends of the two conductors 12 are respectively connected to a second capacitor 121, and the other end of the second capacitor 121 Grounding; the two conductors 12 surround the inductor 13, one end of the...

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Abstract

The invention provides a touch inductor and the implementing method thereof. And the implementing method comprises the steps of: outputting an initial signal by the initial signal output end of a microcontroller; receiving an integral circuit-delayed signal by the signal input end of the microcontroller; the microcontroller detects the delay time of the input signal of the input end; judging whether the delay time is in a preset range; if the delay time is in the preset range, outputting a signal through a detection signal output end to a signal processing circuit. And it can improve noise induction sensitivity, and its circuit is simple and able to reduce cost.

Description

【Technical field】 [0001] The present invention relates to a touch sensing device and its implementation method, in particular to a sensing device for sensing noise through touch and its implementation method. 【Background technique】 [0002] Various types of sensing devices exist and are used in computer systems and other applications, the most familiar of which is the computer "mouse". Although the mouse is extremely common as a position-pointing device, it has mechanical parts and requires a flat surface on which the position ball can roll, and, in order to have a reasonable resolution, the mouse usually needs to roll a long distance. Finally, the mouse needs The user raises his hand to cause the cursor to move, thereby interfering with the main purpose of people typing from a computer. [0003] Various attempts have been made to provide a means for detecting the position of a thumb or other finger used as a pointing device instead of a mouse, the desirable characteristics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/046
Inventor 钟新鸿王汉哲林世权谢冠宏赵鑫
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD