Earphone and feedback noise reduction method and device

An earphone and noise reduction technology, applied in earphones to reduce environmental noise, hearing devices with active noise cancellation, earpiece/earphone accessories, etc.

Pending Publication Date: 2021-11-02
VIVO MOBILE COMM CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present application is to provide an earphone that can solve the existing problem that the signal tone contained in the audio signal is also eliminated when the audio signal is denoised

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
  • Earphone and feedback noise reduction method and device
  • Earphone and feedback noise reduction method and device
  • Earphone and feedback noise reduction method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Embodiments of the present invention will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote 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 only for explaining the present invention and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0030] The features of the terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of these features. In addition, "and / or" in the specification and claims represents at least one of the connected objects.

[0031] In the description of the present invention, it shoul...

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 an earphone and a feedback noise reduction method and device, and belongs to the technical field of sound processing. The earphone comprises a microphone module, a loudspeaker module, a signal processing module and a noise reduction module; the signal processing module is connected with the microphone module and the noise reduction module, and the noise reduction module is connected with the loudspeaker module; the microphone module transmits an obtained audio signal in an ear canal to the signal processing module, the signal processing module obtains an original electric signal corresponding to the signal sound signal and obtains a noise signal according to the original electric signal corresponding to the signal sound signal and the received audio signal, and the signal processing module transmits the noise signal to the noise reduction module; and the noise reduction module obtains a reverse noise signal according to the noise signal and inputs the reverse noise signal to the loudspeaker module.

Description

technical field [0001] The present application belongs to the technical field of sound processing, and in particular relates to an earphone, a feedback noise reduction method and a device. Background technique [0002] Noise-cancelling earphones can reduce the impact of external environmental sounds on users. In the prior art, earphones include active noise-cancelling earphones, passive noise-cancelling earphones, and active-noise-cancelling hybrid passive noise-cancelling earphones. Active noise reduction headphones include feedforward noise reduction methods and feedback noise reduction methods. [0003] When a user wears headphones to listen to music or make a phone call, the sound in the ear canal is divided into two parts: one is external noise, and the other is the signal tone of music or calls. The purpose of active noise-cancelling headphones is to reduce noise as much as possible and retain signal tones. [0004] At present, the feedback noise reduction method of t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10H04R3/00G10K11/178
CPCH04R1/1083H04R3/00G10K11/1781G10K11/1787H04R2460/01G10K2210/1081
Inventor 胡腾飞
Owner VIVO MOBILE COMM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap