A way to eliminate pops from plugged-in audio equipment

A technology for audio equipment and plug-in equipment, applied in the direction of microphones, transducer circuits, sensors, etc., can solve the problems of power shock, pop sound, etc., and achieve the effect of smooth audio output

Active Publication Date: 2017-08-25
SHENZHEN FUZHI SOFTWARE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The power supply system and data transmission system of the traditional Type C interface, Lighting interface headphone equipment and some other audio systems are provided by the TYPE C interface or the Lighting interface. When these devices are connected to Type C and Lighting, the device is on There is a sudden power shock during the power-on process, resulting in a POP sound

Method used

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  • A way to eliminate pops from plugged-in audio equipment
  • A way to eliminate pops from plugged-in audio equipment

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Embodiment Construction

[0017] The following describes the present invention in detail through specific implementations with reference to the accompanying drawings. Although the specific implementations of the present invention are described using the Lighting interface as an example, those skilled in the art should understand that this specific implementation is only exemplary. The invention is not limited to this particular embodiment.

[0018] The present invention can be applicable to all types of plug-and-pull audio equipment including Lighting interface and Type C interface, and all equipment powered by the interface is applicable to the present invention (such as: USB AUDIO, Light interface audio equipment, TYPEC interface audio equipment, etc.).

[0019] exist figure 1 , shows a circuit block diagram of a traditional Lighting interface headphone device in the prior art. The figure includes Lighting interface 1, Cable2, LAM3, power supply system 4, CODEC5, MCU6, earphone 7, etc., such as f...

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PUM

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Abstract

The invention relates to a method for eliminating insertion electrified POP sound. The method is simple in structure, simple and convenient to operate and low in cost. The method comprises the following steps of: opening an audio switching circuit in a delayed manner by utilizing a delay control circuit of insertion equipment; and, after initialization of the equipment is completed, opening or closing the audio switching circuit by utilizing an MCU, so that on-off of audios output by CODEC in the audio equipment can be carried out. The audio switching circuit is also connected to a gain circuit or multiple thermistors, so that impact of POP sound to an earphone is further eliminated.

Description

technical field [0001] The invention relates to the application field of electronic technology, in particular to a method for eliminating the POP sound of an inserted audio device in a plug-and-pull audio device. Background technique [0002] Modern life tends to be more and more intelligent, high-speed, integrated, and miniaturized. Various functions are integrated into one interface, so as to achieve system or device interface simplification and smaller size, such as Type C interface, Apple Lighting interface. These interfaces can not only realize USB data transmission, charging and other functions, but also transmit audio data, that is, audio playback functions can be realized through some conversion circuits, such as headphone equipment with Type C interface, earphone equipment with Lighting interface, various audio systems, etc. . [0003] The power supply system and data transmission system of the traditional Type C interface, Lighting interface headphone equipment a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2410/03
Inventor 杨乐松
Owner SHENZHEN FUZHI SOFTWARE TECH CO LTD
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