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Light detection method, light detection device and electronic equipment

An electronic device and light detection technology, applied in the field of communication, can solve problems such as the inability to identify interfering light and reduce the accuracy of object detection

Pending Publication Date: 2020-10-16
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a light detection method, a light detection device and electronic equipment, which can solve the problem in the prior art that when using infrared rays to detect whether an object is approaching, it is impossible to identify interfering light and reduce the accuracy of object detection

Method used

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  • Light detection method, light detection device and electronic equipment
  • Light detection method, light detection device and electronic equipment
  • Light detection method, light detection device and electronic equipment

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0024] The terms "first" and "second" in the specification and claims of this application are used to distinguish similar objects, but not to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in a sequence other than those illustrated or described herein. In addition, "and / or" in the specificatio...

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Abstract

The invention discloses a light detection method, a light detection device and electronic equipment, which belong to the technical field of communication. The method is applied to the electronic equipment. An infrared light emitter and an infrared light receiver are arranged in the electronic equipment; the infrared light emitter emits linear swept-frequency infrared light to the outside of the electronic equipment under the control of the electronic equipment; and when the infrared light receiver receives the reflected light of the linear swept-frequency infrared light, the light intensity ofthe received reflected light and the frequency difference between the light emitting frequency of the infrared light emitter and the light frequency of the received reflected light are determined, and whether the received reflected light is the reflected light of the external object or the interference light is judged according to the frequency difference and the light intensity. Therefore, the embodiment can recognize whether the received reflected light is the reflected light of the external object or the interference light, eliminates the interference of the interference light, and solvesa problem that the detection precision of the object is reduced because the interference light cannot be recognized when the approaching object is detected in the prior art.

Description

Technical field [0001] This application belongs to the field of communication technology, and specifically relates to a light detection method, light detection device and electronic equipment Background technique [0002] Full-screen mobile phones are the development trend of today's mobile phones, and full-screen mobile phones detect whether there is an object close to the main screen infrared detection technology. In the under-screen infrared detection technology, an infrared lamp and an infrared receiver are arranged under the screen of the mobile phone. The infrared lamp emits infrared rays to the top of the screen under the control of the CPU (central processing unit). After most of the infrared rays pass through the screen of the mobile phone, When it encounters an object, it is reflected. The reflected infrared light will pass through the mobile phone screen again and be received by the infrared receiver. The infrared receiver performs photoelectric conversion processing o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481G01S17/04G01V8/12
CPCG01S7/4811G01S17/04G01V8/12
Inventor 杨茜
Owner VIVO MOBILE COMM CO LTD
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