Insert-pull detection system and handheld device insert-pull detection system

Abstract

The invention relates to an insert-pull detection system and a handheld device insert-pull detection system. The insert-pull detection system comprises a first detection circuit and a second detection circuit. The first detection circuit comprises a first switch and a first end, wherein the first switch is coupled with a first voltage source and one end point of the first switch is used as a first detection point, and the first end is coupled with the first switch. The second detection circuit comprises a second switch and a second end, wherein the second switch is coupled with a second voltage source, one end point of the second switch is used as a second detection point, and the second end is coupled with the second switch. The voltage value detected by the first detection point depends on whether the first end is connected with the second end, thus judging the connection status of the first detection circuit and the second detection circuit. In virtue of the invention, only a signal wire is used for subsequently detecting the connection status of system and the detection is still available when the side of the system has no power supply.

Description

technical field [0001] The present invention relates to a plug-in detection system, in particular to a plug-in detection system that can still detect the plug-in state of the system when one side of the system has no power. Background technique [0002] With the vigorous development of mobile communication technology, mobile phones have gradually become an indispensable tool in modern life, and even become a must-have item for everyone. The functions of mobile phones are more and more diversified, but the most important function is still to make calls. When the user needs to talk with the mobile phone, and both hands must do other things at the same time (such as when the user is driving or cycling), the safest and most convenient solution is of course to use a Bluetooth (Bluetooth) headset. [0003] Since a Bluetooth headset is truly independent of the phone, it must have its own power source. Most of the Bluetooth headsets on the market now use rechargeable lithium batte...

AI Technical Summary

Problems solved by technology

However, when one of the first detection circuit 10 and the second detection circuit 12 has no power, the signal cannot be transmitted, and the plugging and unplugging state of the system cannot be detected.

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