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Power control method and electronic equipment

A technology for electronic equipment and power control, applied in power management, branch equipment, equipment with sensors, etc., can solve the problems of reduced wireless performance, inability to judge other objects close to electronic equipment, and reducing the transmission power of electronic equipment.

Active Publication Date: 2017-09-15
LENOVO (BEIJING) LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current cap sensor cannot judge whether the object approaching the electronic device is a human body or other objects, such as a desktop. If the object approaching the electronic device is not a human body, it is unnecessary to reduce the transmission power of the electronic device and cause an unreasonable decrease in wireless performance.

Method used

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  • Power control method and electronic equipment
  • Power control method and electronic equipment
  • Power control method and electronic equipment

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Embodiment Construction

[0038] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0039] figure 1 It is a schematic flow chart of the power control method of the embodiment of the present invention Figure 1 ,Such as figure 1 As shown, the power control method includes the following steps:

[0040] Step 101: Use a first sensor in an electronic device to detect a capacitance value of a target object.

[0041] In the embodiment of the present invention, the electronic device may be a mobile phone, a tablet computer, a notebook, and the like. The electronic device has a first sensor. Here, the first sensor refers to a capacitive sensor. The capacitive ...

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Abstract

The invention discloses a power control method and electronic equipment. The method comprises the following steps: using a first sensor in the electronic equipment to detect a capacitance value of a target object; using a second sensor in the electronic equipment to detect a distance between the target object and the electronic equipment; according to the capacitance value of the target object, and the distance between the target object and the electronic equipment, determining attribute information of the target object; and when the attribute information of the target object meets preset conditions, judging whether to control an emitting power of the electronic equipment or not based on the capacitance value of the target object.

Description

technical field [0001] The present invention relates to specific absorption rate (SAR, Specific Absorption Ratio) detection technology, in particular to a power control method and electronic equipment based on SAR detection. Background technique [0002] Specific Absorption Ratio Sensor (SAR Sensor, Specific Absorption Ratio Sensor) is a device used in many electronic devices, such as mobile phones, tablet computers, etc. are equipped with SAR Sensors. The SAR Sensor senses whether the surrounding capacitance changes through the antenna, and then determines whether the human body is close to the electronic device. When the human body is close to the electronic device, the electronic device can be controlled to reduce the transmission power, so that the SAR value is reduced to reduce the radiation to the human body. [0003] Usually, a capacitive sensor (cap sensor) is added as a SAR sensor in the antenna area of ​​the electronic device. When an object approaches the antenna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725H04W52/18
CPCH04W52/18H04M2250/12H04M1/72448H04M1/72454
Inventor 张敏
Owner LENOVO (BEIJING) LTD