Noise cancellation apparatus, method, and electronic communication device using noise cancellation apparatus

A technology for noise elimination and communication devices, which is applied to electrical components, telephone structures, transmission systems, etc., and can solve problems affecting the appearance of communication devices

Inactive Publication Date: 2005-11-02
BENQ CORP
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using this method, one more hole must be opened on the shell of the electronic communication device for the use of the auxiliary microphone, which affects the appearance of the communication device.

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
  • Noise cancellation apparatus, method, and electronic communication device using noise cancellation apparatus
  • Noise cancellation apparatus, method, and electronic communication device using noise cancellation apparatus
  • Noise cancellation apparatus, method, and electronic communication device using noise cancellation apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 It is a block diagram of the combination of the first embodiment 100 of the noise canceling device of the present invention and the microphone 102 . The noise canceling device 100 is used for canceling a first background noise 104 collected by a microphone 102 . The microphone 102 also collects a first sound signal 106 and mixes it with the first background noise 104 to form a mixed signal 108 . The embodiment 100 includes a vibration sensor 110 , a converter 114 and a computing unit 118 . In the embodiment 100 , the vibration sensor 110 is disposed at a first position, such as closer to the microphone 102 , so as to detect the vibration signal 112 caused by the first sound signal 106 . The converter 114 is electrically coupled to the vibration sensor 110 for converting the vibration signal 112 into a restored signal 116 . The computing unit 118 is coupled to the microphone 102 and the converter 114 for computing the mixed signal 108 and the restored signal ...

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 present invention provides noise elimination device, method and electronic communication device for noise elimination device. The device is used to eliminate the first background noise collected by microphone. The microphone also collects the first sound signal, wherein the first background noise and the first sound signal mix to mixed signal. The device comprises a vibration sensor, a transducer and an arithmetic unit. The vibration sensor is used to check vibration signal caused by first sound signal or the first background noise. Transducer makes the vibration signal to revert signal. Arithmetic unit computes mixed signal and revert signal and obtains the first revert sound signal.

Description

technical field [0001] The present invention relates to a noise canceling device, a method and an electronic communication device using the noise canceling device. Background technique [0002] If electronic communication devices such as mobile phones and walkie-talkies are used in a noisy environment, the quality of the call is often affected by the background noise. Removing background noise is one way to improve call quality. [0003] A method for eliminating noise in general electronic communication devices is as follows. Add an auxiliary microphone to collect background noise, and then subtract the background noise received by the auxiliary microphone from the sound signal received by the original microphone and the background noise. However, if this method is used, an additional hole must be opened on the housing of the electronic communication device for the use of the auxiliary microphone, which affects the appearance of the communication device. Therefore, 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
Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/19
Inventor 乐致诚
Owner BENQ CORP
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