Capacitive touch frequency hopping system and frequency hopping processing method

A technology of capacitive touch and processing methods, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., and can solve problems such as error triggering systems

Pending Publication Date: 2021-06-08
优方科技(东莞)有限公司
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thus causing false tr

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  • Capacitive touch frequency hopping system and frequency hopping processing method
  • Capacitive touch frequency hopping system and frequency hopping processing method
  • Capacitive touch frequency hopping system and frequency hopping processing method

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention,

[0031] Please refer to Figure 1-4 ,

[0032] A frequency hopping system suitable for capacitive touch, including a microprocessor 1, a register 2 and a frequency hopping module 3 electrically connected to each other, the frequency hopping module 3 has a plurality of different oscillation main frequencies, two of which are different According to different use environments, the microprocessor 1 sends a judgment signal to the register 2, and the register 2 triggers the corresponding two different main frequencies in the frequency hopping module 3 to switch each other to achieve the purpose of anti-interference.

[0033] In a further technical solution, the frequency hopping module 3 includes an oscillation module one 31, an oscillation module two 32, an oscillati...

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Abstract

The invention discloses a capacitive touch frequency hopping system and a frequency hopping processing method. The capacitive touch frequency hopping system comprises a microprocessor, a register and a frequency hopping module which are electrically connected with one another, the frequency hopping module has a plurality of different oscillation main frequencies, two different main frequencies are used in a combined mode, and according to different use environments, a microprocessor (1) sends out a judgment signal to a register, the register triggers two corresponding different main frequencies in a frequency hopping module to be switched to achieve the anti-interference purpose, a plurality of oscillation modules are arranged, the microprocessor (1) sends out the judgment signal to the register according to the application environment, the register triggers two corresponding oscillation modules, the main frequencies of the two oscillation modules are mutually switched, the anti-interference purpose is achieved, in addition, the multiple oscillation modules can form multiple combinations, and the application range is wider.

Description

technical field [0001] The invention belongs to the field of capacitive touch technology, in particular to a capacitive touch frequency hopping system and a frequency hopping processing method. Background technique [0002] In the field of touch technology, when the equivalent capacitance outside the oscillator changes, the output frequency of the oscillator will change. When the user has a touch behavior, the oscillator will sense the external capacitance and reduce the output oscillation frequency. , the touch system can judge whether the user has a touch behavior by detecting the change of the oscillation frequency. When there is interference from the outside world (such as AC power, space radiation), the touch system will make a misjudgment situation, because the touch system oscillates The reduction of the frequency is used to determine the user's touch behavior. Therefore, for example, the frequency interference generated by the AC power switch will make the touch syst...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0418G06F3/044
Inventor 刘香平尤茂忠
Owner 优方科技(东莞)有限公司
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