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Distance sensing circuit and mobile terminal

A distance sensing, mobile terminal technology, applied in the field of communications, can solve problems such as incomplete noise cancellation and sound leakage, and achieve the effect of improving user experience

Active Publication Date: 2020-06-05
HUIZHOU TCL MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a distance sensing circuit and a mobile terminal, aiming to solve the technical problem that part of the sound leaks due to incomplete silence when the microphone is directly blocked by hand for silence

Method used

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  • Distance sensing circuit and mobile terminal
  • Distance sensing circuit and mobile terminal
  • Distance sensing circuit and mobile terminal

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Embodiment Construction

[0023] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figures, structurally similar elements are denoted by the same reference numerals.

[0024] It should be noted that the thickness and shape in the drawings of the present application do not reflect the real scale, and the purpose is only to schematically illustrate the content of the embodiments of the present application.

[0025] Because the current communication products on the market are all button-type noise reduction in the design of the user's call...

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Abstract

The application provides a distance sensing circuit. The distance sensing circuit comprises a microphone, a filtering module and a distance sensing chip which are connected in sequence., The microphone comprises a first grounding terminal, an input terminal and an output terminal; the output terminal is connected with the filtering module, the first grounding terminal is grounded, and the input terminal is connected with a power supply. The filtering module comprises a first inductor and a first capacitor which are connected in series, a second grounding terminal is arranged between the firstinductor and the first capacitor and used for grounding, and the filtering module is used for filtering interference signals of the microphone to the distance sensing chip. According to the application, the distance sensing chip is connected with the microphone through the filtering module; and when a certain distance is reached between a finger and the microphone, the distance sensing chip responds and thus the mobile terminal completely enters a silencing state, thereby ensuring that the information of the user is not leaked and the use is more suitable for the actual use habit of the user,and improving the user experience.

Description

technical field [0001] The present application relates to the technical field of communication, in particular to a distance sensing circuit and a mobile terminal. Background technique [0002] In daily life, when we use a mobile phone to talk, other people may suddenly come to talk to you, but if the other party in the call is also talking, it is inconvenient to hang up the phone directly. At this time, if you do not want the other party to Knowing what you and others are saying requires muting. [0003] At present, you can use the mute button on the mobile phone to silence the sound, but it takes 2 seconds to respond to the operation of the button, so in the actual use of the user, our habitual operation is to directly block the microphone with the hand to silence, but Blocking the microphone with your hands does not completely eliminate the noise, and there is still a risk of some users' voices leaking, and the noise reduction effect is not reliable. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02H04M1/03
CPCH04M1/026H04M1/03
Inventor 徐健华刘明亮
Owner HUIZHOU TCL MOBILE COMM CO LTD