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Approaching detection device and mobile terminal

A mobile terminal and proximity detection technology, applied in the field of communication, can solve problems such as unfavorable miniaturization and thinning of mobile terminals, waste of internal space resources of mobile terminals, etc., and achieve the effects of saving internal space, reducing design difficulty, and reducing costs.

Active Publication Date: 2012-07-18
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding such a large capacitive detection FPC near the antenna greatly wastes the originally tight internal space resources of the mobile terminal, which is not conducive to the miniaturization and thinning of the mobile terminal

Method used

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  • Approaching detection device and mobile terminal
  • Approaching detection device and mobile terminal
  • Approaching detection device and mobile terminal

Examples

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. First, words and terms in each of the following examples are explained:

[0020] The so-called "mobile terminal" refers to various terminal communication devices whose size is suitable for movement, including but not limited to: mobile phones, tablet computers, portable personal computers, etc.

[0021] When the following embodiments mention that A and B are "coupled", it means that the electrical signal passing through A and the electrical signal passing through B a...

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Abstract

The embodiment of the invention provides an approaching detection device comprising an antenna body of a mobile terminal, a side metal strip of the mobile terminal and a capacitance detection sensor circuit, wherein the antenna body of the mobile terminal and the side metal strip of the mobile terminal are used for detecting the capacitance of a space between the antenna body of the mobile terminal and the side metal strip of the mobile terminal; the capacitance detection sensor circuit is electrically coupled with the antenna body of the mobile terminal and the side metal strip of the mobile terminal, judges whether a person approaches the device according to the capacitance detected by the antenna body of the mobile terminal and the side metal strip of the mobile terminal, and outputs an instruction signal to indicate that the person approaches the device when judging that the person approaches the device. In the embodiment of the invention, the antenna body of the mobile terminal and the side metal strip of the mobile terminal are used for detecting the capacitance of the space, the capacitance detection sensor circuit judges whether the person approaches the device according to the capacitance to achieve the approaching detection scheme, therefore, the internal space of the mobile terminal is saved, the difficulty in designing the mobile terminal is reduced, the cost is lowered, and the mobile terminal favorably tends to be small and thin.

Description

technical field [0001] Embodiments of the present invention relate to the communication field, and in particular, relate to an approach detection device and a mobile terminal. Background technique [0002] With the development of electronic technology, wireless products such as mobile terminals (such as smart phones, tablet computers, and portable personal computers) are gradually becoming indispensable for people's daily life and office supplies. In order to prevent excessive radiation from wireless products from harming people, the United States Both the Federal Communications Commission and the European Union have strict certification regulations on the SAR (Specific Absorption Rate, Specific Absorption Rate) value of wireless products. [0003] In order to reduce the SAR value of the product, some wireless products are now equipped with a proximity sensor that detects the approach and departure of people. When a person is detected, the transmission power is reduced to re...

Claims

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Application Information

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IPC IPC(8): G01V3/00
CPCH03K17/955H04B1/3838G06F3/00G06F1/3231G06F3/011G06F3/044Y02D10/00
Inventor 王爱猛范保民邹炎炎唐巍
Owner HUAWEI DEVICE CO LTD
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