Detection circuit and system

A technology for detecting circuits and circuits, which is applied in the field of circuits, can solve problems such as inability to accurately hear the sound signal of the speaker, unqualified noise-cancelling microphones, and reduced accuracy of noise-cancelling microphones

Inactive Publication Date: 2015-06-03
QINGDAO HISENSE MOBILE COMM TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] In the above implementation process, the user can only rely on the sound signal sent by the speaker to judge whether the noise-canceling microphone is good or bad, resulting in high requirements for the external test space. When there is a large noise in the test space, the user may not be able to accurately Hearing the sound signal sent by the speaker, at this time, if the speaker sends a sound signal, but because the user cannot hear it, it will be considered that the noise-cancelling microphone is unqualified, thereby reducing the accuracy of the detection of the noise-cancelling microphone

Method used

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  • Detection circuit and system
  • Detection circuit and system

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Embodiment Construction

[0020] 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.

[0021] An embodiment of the present invention provides a detection circuit, such as figure 1 As shown, it includes: a microphone 101 , a light emitting device 102 and a main control chip 103 .

[0022] The main control chip 103 is connected with the microphone 101 ; the main control chip 103 is also connected with the light emitting device 102 .

[0023] The microphone 101 is used to receive a test sound signal, convert the test sound signal into a current signal ...

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Abstract

An embodiment of the invention provides a detection circuit and a detection system, relates to the circuit field, and is used for improving the accuracy of microphone detection. The detection circuit comprises a microphone, a main control chip and a light-emitting diode, wherein the main control chip is connected with the microphone; the main control chip is further connected with the light-emitting device; the microphone is used for receiving a to-be-tested sound signal, and converting the sound signal into a current signal; the main control chip is used for amplifying the current signal, and outputting the amplified current signal to the light-emitting device.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a detection circuit and system. Background technique [0002] In a smart device (such as a mobile phone, a tablet, etc.), two microphones are usually set, one microphone is a microphone used for normal voice communication, and the other microphone is a noise-canceling microphone for Central location on the device's motherboard. When producing smart devices, it is usually necessary to perform functional tests on the functions of the smart device motherboard, so the test of the noise-canceling microphone is no exception. [0003] In the prior art, usually the opposite side of the side on the main board of the smart device that is provided with the noise-reduction microphone is attached to the special tooling board, and then a sound signal is sent to the noise-reduction microphone on the main board of the smart device through the voice player to Make the noise reduction microphone receive ...

Claims

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Application Information

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IPC IPC(8): H04R29/00
Inventor 王鹏唐才家王学成
Owner QINGDAO HISENSE MOBILE COMM TECH CO LTD
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