Communication device with loudspeaker noise reduction function and noise reduction method of communication device
A communication device and loudspeaker technology, which is applied in the field of communication, can solve problems such as the inability of the receiver to hear clearly and interference with the accuracy of information transmission, and achieve the effects of increasing load, high-quality calls, and improving depth and width
Inactive Publication Date: 2016-11-23
SHENZHEN JIU XIAO HUAN PEI TECH CO LTD
View PDF3 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In a noisy environment, the receiver who uses the communication device to talk can hear the voice of the sender and the ambient noise at the same time, which may cause the receiver to be unable to hear the other party's words clearly
Noise has caused great interference to the accuracy of information transmission, so it is necessary to provide a communication device with a speaker noise reduction function
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The present invention will be further described below in conjunction with the accompanying drawings.
[0024] like figure 1 As shown, the communication device with the noise reduction function of the speaker provided by the present invention includes: a speaker 1 , a main board 2 , a noise reduction control board 3 and a noise collector 4 . The above components are all located in the housing of the communication device.
[0025] figure 2 A circuit block diagram of the communication device is shown, and the noise reduction control board 3 includes an analog filter 31 , a digital filter 32 and a sound mixing circuit 33 . After the analog filter 31 and the digital filter 32 reversely process the noise signal collected by the noise collector 4, the reverse noise signal is obtained and output to the sound mixing circuit 33. After mixing the noise signal, it is output to speaker 1 for playback.
[0026] The noise collector 4 preferably adopts a silicon microphone to impr...
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
Login to View More Abstract
The invention relates to a communication device with a loudspeaker noise reduction function and a noise reduction method of the communication device to improve the call quality of the communication devices, such as mobile phones, interphones, walky-talkies and telephone sets, in the noisy environments. The communication device comprises a loudspeaker and a mainboard, and further comprises a noise collector and a noise reduction control panel, wherein the noise reduction control panel is connected to the noise collector, the loudspeaker and the mainboard for carrying out backward processing on a noise signal collected by the noise collector and outputting the noise signal after backward processing and an audio signal from the mainboard to the loudspeaker after sound mixing.
Description
technical field [0001] The present invention relates to the field of communication, and more particularly, to a communication device with a noise reduction function of a speaker and a noise reduction method thereof. Background technique [0002] With the improvement of people's requirements for call quality, more and more noise reduction devices are applied to communication devices, but the general purpose is to improve the noise reduction of the microphone, and the noise reduction improvement of the speaker of the communication device is lacking. Mobile phones basically have the function of dual-mic noise reduction, but they do not have the function of earpiece noise reduction. In fact, it is often unavoidable to make calls in noisy environments, such as construction sites, vehicles and boats, or other public places with loud noise sources. In a noisy environment, the receiver who uses the communication device to talk can hear the sender's voice and ambient noise at the sa...
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
Login to View More IPC IPC(8): H04M1/725G10L21/0208
CPCG10L21/0208H04M1/72454
Inventor 鲍青山何少勇
Owner SHENZHEN JIU XIAO HUAN PEI TECH CO LTD