A high-efficiency noise control device

A noise control and high-efficiency technology, applied in the electronic field, can solve problems such as prone to noise and achieve the effect of improving the hearing effect

Active Publication Date: 2017-12-12
SICHUAN YANGZISEN ENVIRONMENTAL PROTECTION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the current audio receiving equipment is prone to noise, and to provide a high-efficiency noise control device that can completely remove the noise

Method used

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  • A high-efficiency noise control device

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Effect test

Embodiment

[0018] Such as figure 1 As shown, a kind of high-efficiency noise control device of the present invention mainly consists of a buffer circuit 1, a voltage-controlled oscillating circuit 2 connected to the buffer circuit 1, a noise signal removal circuit 3 connected to the voltage-controlled oscillating circuit 2, and a noise signal The noise detection circuit 4 connected to the removal circuit 3 , the frequency stabilization circuit 5 connected to the noise detection circuit 4 , and the audio processing circuit 6 connected to the frequency stabilization circuit 5 are composed.

[0019] Wherein, the buffer circuit 1 includes a polar capacitor C1, a polar capacitor C2, an inductor L1, and an inductor L2. When connecting, the negative pole of the polar capacitor C1 is connected to the voltage-controlled oscillation circuit 2 after passing through the inductor L1 and the inductor L2, and the positive pole is connected to the voltage-controlled oscillator circuit 2, and the negativ...

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Abstract

The invention discloses a high-efficiency noise control device, which is characterized in that: a buffer circuit (1), a voltage-controlled oscillation circuit (2) connected to the buffer circuit (1), and a voltage-controlled oscillation circuit (2) are connected The noise signal removal circuit (3), the noise detection circuit (4) connected to the noise signal removal circuit (3), the frequency stabilization circuit (5) connected to the noise detection circuit (4), and the frequency stabilization circuit ( 5) It is composed of a connected audio processing circuit (6); the noise signal removal circuit (3) is composed of a triode VT1, a triode VT2, a triode VT3, and the like. The present invention is provided with a noise signal removal circuit, which can eliminate unnecessary audio signals and retain useful signals within a certain frequency range. At the same time, the noise detection circuit can further detect the audio after the noise is removed. If there is any residual noise signal, it will be further intercepted to ensure that the noise signal can be completely removed and the hearing effect can be improved.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a high-efficiency noise control device. Background technique [0002] Audio receiving equipment is already an indispensable tool in daily life, study, and work. However, due to interference from the outside world or the equipment itself during use, noise will appear when the signal is output. These noises are not what people need, and their existence has brought great influence to people's hearing effect. How to completely eliminate this part of the noise while ensuring the normal output of the required audio signal is a problem that people need to solve urgently. Contents of the invention [0003] The purpose of the present invention is to overcome the defect that the current audio receiving equipment is prone to noise, and provide an efficient noise control device that can completely remove the noise. [0004] The object of the present invention is achieved with the following tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
Inventor 刘世羊
Owner SICHUAN YANGZISEN ENVIRONMENTAL PROTECTION EQUIP CO LTD
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