Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Head-mounted noise reduction earphone device capable of correcting noise reduction effect, and correction method

A technology for noise reduction earphones and ear shells, which is applied to earphones/headphone accessories, earphones to reduce environmental noise, and loudspeakers, etc. Reduced production cost, optimized noise reduction performance, easy-to-use effects

Pending Publication Date: 2019-04-12
江西星浩实业有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the advancement of technology and the improvement of quality of life, noise-cancelling headphones have become popular. The noise range processed by noise-cancelling headphones is generally between 20Hz-1KHz. At present, the noise-cancelling circuit mainly includes signal amplifiers composed of amplifiers and discrete components for noise reduction. Circuit and integrated noise reduction circuit processed by DSP signal; signal amplifier noise reduction circuit is widely used in low-end noise reduction headphones because of its lower cost than integrated noise reduction circuit, but the deviation range of performance parameters is relatively large due to too many components. Therefore, in actual production, there is a large proportion of noise reduction that does not meet the standard, which virtually increases the production cost

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
  • Head-mounted noise reduction earphone device capable of correcting noise reduction effect, and correction method
  • Head-mounted noise reduction earphone device capable of correcting noise reduction effect, and correction method
  • Head-mounted noise reduction earphone device capable of correcting noise reduction effect, and correction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The present invention provides such Figure 1-5 The shown noise-cancelling headphone device, which can modify the noise reduction effect, includes a head-mounted assembly 1 and a sounding unit 2 connected to both ends of the head-mounted assembly 1. The sounding unit 2 includes a speaker 21 and a noise-reducing microphone 22. , horn plate 23, earmuffs 24, horn back cover 25, ear shell 26 and outer cover 27, described horn back cover 25 also includes rotating shaft 3, counterweight 4 and spring 5 inside, and the middle part of described rotating shaft 3 is provided with rotating shaft Protruding head 6, one end of the rotating shaft 3 is provided with an adjusting notch 7, one end of the rotating shaft 3 runs through the ear shell 26 to the outer wall of the ear shell 26, and the outer wall of the ear shell 26 corresponding to the adjusting notch 7 is provided with an adjusting hole 8, so The horn rear cover 25 is provided with an air guiding lumen 9, and the volume of t...

Embodiment 2

[0041] according to Figure 3-4 As shown, a noise reduction headphone device capable of correcting the noise reduction effect, the speaker disk 23 is provided with a speaker diaphragm 13 inside, and the noise reduction microphone 22 is arranged directly opposite to the speaker 21 diaphragm. The noise reduction microphone 22 is arranged on the top of the speaker plate 23, the speaker 21 is arranged on the bottom of the speaker plate 23, and the speaker 21 and the noise reduction microphone 22 are glued and fixed on the speaker plate 23;

[0042]The bottom surface of the horn plate 23 is provided with a fixing groove 10, the fixing groove 10 is set in a ring shape, the horn rear cover 25 is bonded and fixed in the fixing groove 10 of the horn plate 23, and the horn 21 is accommodated in the horn plate 23 and the horn back cover 25, it is convenient for the quick installation of the horn back cover 25, the horn plate 23 and the horn 21;

[0043] The earmuffs 24, the earshells 26...

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 head-mounted noise reduction earphone device capable of correcting a noise reduction effect, and a correction method, and particularly relates to the field of noise reductionearphones. The head-mounted noise reduction earphone device comprises a head-mounted component and a sound production unit connected to two ends of the head-mounted component, the sound production unit comprises a loudspeaker, a noise reduction microphone, a loudspeaker disk, ear covers, a loudspeaker back cover, ear shells and an outer cover, the loudspeaker back cover internally comprises a rotating shaft, a sinking block and a spring, a rotating shaft convex head is arranged at the middle of the rotating shaft, and an adjustment notch is formed in one end of the rotating shaft. According to the head-mounted noise reduction earphone device disclosed by the invention, the volume of an air guide tube cavity is adjusted by rotating the rotating shaft to adjust the audio vibration airflow in the loudspeaker back cover so as to fine tune the sound production characteristics of a vibrating diaphragm of the loudspeaker to optimize the noise reduction performance, the noise reduction errorscaused by the parameter discrete type of the loudspeaker, the noise reduction microphone and a signal processing circuit can be greatly corrected, the problem of a relatively large noise reduction unqualified proportion of the noise reduction earphones in batch production is effectively reduced, and thus the production cost of the noise reduction earphones can be reduced.

Description

technical field [0001] The invention relates to the technical field of noise-canceling earphones, and more specifically, the invention relates to a head-mounted noise-canceling earphone device and a correction method capable of correcting the noise-canceling effect. Background technique [0002] With the advancement of technology and the improvement of quality of life, noise-cancelling headphones have become popular. The noise range processed by noise-cancelling headphones is generally between 20Hz-1KHz. At present, the noise-cancelling circuit mainly includes signal amplifiers composed of amplifiers and discrete components for noise reduction. Circuit and integrated noise reduction circuit processed by DSP signal; signal amplifier noise reduction circuit is widely used in low-end noise reduction headphones because of its lower cost than integrated noise reduction circuit, but the deviation range of performance parameters is relatively large due to too many components. There...

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): H04R1/10
CPCH04R1/1083H04R2201/10
Inventor 王星李雄
Owner 江西星浩实业有限公司
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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com