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Method and system for realizing earphone button function of electronic device

An electronic device and button technology, which is applied to the structure of telephone sets, handset/earphone accessories, etc., can solve the problems of increasing the cost of mobile phones, and achieve the effect of no increase in cost and convenient cost

Inactive Publication Date: 2012-09-19
佛山市斯海维夫电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But doing so requires adding an acceleration sensor chip, which will inevitably increase the cost of the entire mobile phone.

Method used

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  • Method and system for realizing earphone button function of electronic device
  • Method and system for realizing earphone button function of electronic device
  • Method and system for realizing earphone button function of electronic device

Examples

Experimental program
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Embodiment Construction

[0025] Such as figure 2 Shown is a schematic diagram of the structure of the preferred embodiment of the electronic device of the present invention. The electronic device 10 includes a microphone 11 installed on the main board of the electronic device 10 , a system 12 for realizing the button function of an earphone, a storage device 13 and a processor 14 . The microphone 11 receives sound signals, and the microphone 11 is an energy conversion device that converts sound signals into electrical signals. In this preferred embodiment, when there is noise around the electronic device 10 or the electronic device 10 shakes to generate airflow, the microphone 11 will touch the airflow, causing voltage fluctuation on the microphone 11, and the voltage fluctuation will cause current fluctuation. Described storage device 13 is used for storing various data, and this storage device 13 can be the internal memory of described electronic device 10, can also be the memory card that can be ...

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Abstract

The invention discloses a method and a system for realizing the earphone button function of an electronic device. The method comprises the following steps of: setting a current threshold value which triggers the earphone button function, and setting the current fluctuation duration time of a microphone of the electronic device; resetting a timer of the electronic device; when the electronic device has a coming call or is in a conversation process, monitoring a processor of the electronic device in real time to acquire the current fluctuation value of the microphone; when the monitored current fluctuation value is more than the set current threshold value, starting timing by using the timer; and when timing time is less than the set current fluctuation duration time, notifying the processor to process the coming call or a conversation. By the method and the system, the earphone button function can be realized by accelerated induction of the microphone.

Description

technical field [0001] The invention relates to a method and a system for realizing the button function of an earphone of an electronic device. Background technique [0002] Mobile phones are generally equipped with a pair of earphones. Users can use the earphones to carry out conversations. The earphones generally have a button, such as figure 1 As shown, it is the function of the headset button on the Qualcomm (Qualcomm) mobile phone, and the button marked as 22 is the button on the headset. The button has two functions: one is to answer when the phone has a call; the other is to hang up the call when pressed during a call. When the button 22 is not pressed, since the microphone generally has a certain DC impedance (about 1K ohms), the current output of the power supply HSET_BIAS (1.8V) of the microphone is a fixed value. figure 1 In R1=R2=R3=2K ohm, the fixed output current value=1.8÷(value of 3K resistor and 5K resistor connected in parallel)=960μA. And when the butto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10H04M1/02
Inventor 李陶亮
Owner 佛山市斯海维夫电子有限公司
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