Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for reducing background noise

A technology of background noise and audio, applied in the field of digital audio wireless transmitter and receiver, can solve the problems of equipment noise and affecting user experience, etc.

Inactive Publication Date: 2020-09-01
INFOSVC INFORMATION TECHNICAL SERVICE LTD CO
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a device and method for reducing background noise, which aims to solve the technical problem that the sound played by digital audio wireless transceiver equipment has obvious equipment noise and affects user experience in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for reducing background noise
  • Device and method for reducing background noise
  • Device and method for reducing background noise

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device and a method for reducing background noise, and the method comprises the steps: enabling three groups of signal lines led out from an audio card connector to be correspondingly connected with each first capacitor in parallel, and carrying out the capacitive coupling, so as to reduce the background noise brought by preceding-stage equipment; wrapping the three groups of signal lines inthe length direction of the signal lines by utilizing the shielding assembly with the length of at least 10cm; using the shielding assembly for shielding high frequency in air andreducing background noise of equipment, and then correspondingly connecting one ends, far away from the shielding assembly, of the three groups of signal lines with each inductor in series to performinductive coupling so as to shield and block residual background noise of a preceding-stage circuit; and correspondingly connecting the three second capacitors on the sides, away from the shielding assembly, of the three inductors with the three sets of signal lines in parallel respectively for conducting secondary capacitive coupling before signal processing is conducted, and performing secondarynoise reduction on residual background noise of a preceding-stage circuit. Therefore, the equipment bottom noise can be well suppressed, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of a digital audio wireless transmitting and receiving device, in particular to a device and method for reducing background noise. Background technique [0002] At present, digital audio wireless transceiver equipment is widely used in professional stage audio wireless transmission scenarios. Due to the professional stage scene, the requirements for sound quality and audio bandwidth are relatively high. [0003] The common means of digital audio wireless transceiver equipment on the market is that in a standard application system, the sound is presented to the audience through a microphone, transmitter, air interface, receiver, mixer, power amplifier and speaker. The standard Canon interface is used between the devices, and the line is a standard audio shielded line. [0004] However, when the digital audio wireless transceiver equipment is compared with the original wired transmission transceiver equipme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01R13/6461H01R13/6581H01R13/66H01R13/719
CPCH01R13/6461H01R13/6581H01R13/665H01R13/719
Inventor 陈科刘朝亮张咏丁祖庚杨龙
Owner INFOSVC INFORMATION TECHNICAL SERVICE LTD CO