Automatic environment noise elimination device installed on telephone

A technology for environmental noise and noise, applied in the fields of electronics, signal detection, and communication, can solve problems such as abnormal calls and inaudible voice, and achieve the effect of easy installation and small size

Inactive Publication Date: 2015-03-25
TIANJIN SIBOKE TECH DEV
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AI Technical Summary

Problems solved by technology

[0002] The mobile phones used in the past can make normal calls in a low-noise environment and can hear the other party's voice clearly; but in a noisy environment, due to the severe interference of the noise, the other party's voice cannot be heard clearly. If the call is not normal, it may cause a series of serious consequences

Method used

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  • Automatic environment noise elimination device installed on telephone
  • Automatic environment noise elimination device installed on telephone

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Embodiment Construction

[0009] Such as figure 1 As shown, the present invention is a device for automatically eliminating environmental noise installed on a telephone. The noise collection module collects the noise in the call environment, which mainly converts the noise sound wave into an electrical signal through an audio microphone; The converted noise electrical signal is sent to the noise analysis module. The noise analysis module analyzes the electrical signal and obtains the sound intensity and phase data of the noise. At the same time, it inverts the phase data to obtain new phase data, and then the phase The data and sound intensity data are sent to the noise generation module; the noise generation module uses the obtained phase data and sound intensity data to synthesize the sound used to cancel the noise, that is, the new noise is fitted and superimposed on the noise in the call environment. Cancellation, which reduces the impact of surrounding noise and improves call quality.

[0010] T...

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Abstract

The invention provides an automatic environment noise elimination device installed on a telephone, and belongs to the electronics field, the signal detection field, the communication field and other fields. The automatic environment noise elimination device comprises a noise collection module, a noise analysis module and a noise generation module. The data output end of the noise collection module is connected with the data input end of the noise analysis module. The output end of the noise analysis module is connected with the data input end of the noise generation module. Noise sent by the output end of the noise generation module is offset by noise in the environment. The automatic environment noise elimination device can automatically detect the sound intensity and phase of the noise in the conversation environment when installed on the telephone, and sound waves with reverse phase positions and the same sound intensity are then sent out. Thus, the noise in the environment is offset, and the conversation quality is improved.

Description

technical field [0001] Belonging to the fields of electronics, signal detection, communication, etc., it involves audio signal acquisition microphones, signal analysis circuits, speaker systems, etc., and is used in noisy mobile phone call environments. Background technique [0002] The mobile phones used in the past can make normal calls in a low-noise environment and can hear the other party's voice clearly; but in a noisy environment, due to the severe interference of the noise, it is impossible to hear the other party's voice clearly. If the call is not normal, it may cause a series of serious consequences. [0003] This problem can be well solved by using an automatic ambient noise cancellation device installed on the phone. Through the noise collection module in this device, the noise in the call environment can be collected, the sound wave signal is converted into an electrical signal, and the electrical signal is transmitted to the noise analysis module. The noise a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/19
Inventor 尚佐旭
Owner TIANJIN SIBOKE TECH DEV
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