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A mobile terminal and a calling method thereof

A mobile terminal, call mode technology, applied in the field of communication, can solve problems such as voice signal leakage, achieve the effect of eliminating volume and protecting privacy

Active Publication Date: 2019-05-17
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a mobile terminal and a calling method thereof, which are used to solve the problem of voice signal leakage in existing mobile terminals during a call

Method used

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  • A mobile terminal and a calling method thereof
  • A mobile terminal and a calling method thereof
  • A mobile terminal and a calling method thereof

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Embodiment Construction

[0024] Before describing the mobile terminal and the calling method thereof according to the embodiment of the present invention, the principle adopted in the embodiment of the present invention will be briefly introduced first.

[0025] The earpiece used by the mobile terminal is usually a dynamic earpiece. The voice signal radiated by this type of earpiece relies on the diaphragm vibration to push the air to transmit sound, that is, the earpiece will radiate voice signals to the front and back at the same time during the working process. The front voice signal, That is, the useful signal that enters the human ear during the call, and the back voice signal, that is, the leaked voice signal, needs to be eliminated. Usually, the phases of the front speech signal and the rear speech signal are opposite, and the amplitude of the rear speech signal is smaller than that of the front speech signal.

[0026] According to the above analysis, in the embodiment of the present invention,...

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Abstract

The invention provides a mobile terminal and a call method thereof. The mobile terminal comprises a telephone receiver and a loudspeaker. The call method comprises the steps of obtaining a received call voice signal; obtaining amplitude of a leakage voice signal generated when the telephone receiver plays the call voice signal; generating a loudspeaker voice signal which has same amplitude to that of the leakage voice signal and different phase to that of the leakage voice signal; and driving the loudspeaker to play the loudspeaker voice signal when the telephone receiver plays the call voice signal. The loudspeaker voice signal played by the loudspeaker and the leakage voice signal leaked by the telephone receiver can offset each other, the volume of the leakage voice signal can be reduced or even cancelled, and therefore, the privacy of a user is protected.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a mobile terminal and a calling method thereof. Background technique [0002] The current mobile terminal integrates more and more functions, including taking pictures, video chatting, fingerprint identification and so on. Although the functions of the mobile terminal are constantly being updated, the performance is constantly improving, and the appearance is becoming more and more refined, but the call is always its most basic and most important function. [0003] Call privacy has always been a concern of users. With the accelerated pace of life, we often encounter scenarios where we answer calls in a quiet environment, such as in an elevator or in an office. When the external environment is relatively quiet, the voice signal from one end of the phone is easily heard by the people next to it, which in turn causes a privacy leak. [0004] The root cause of privacy leakag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/19H04K1/00G10K11/178
CPCG10K11/178H04K1/006H04M1/19
Inventor 李伟
Owner VIVO MOBILE COMM CO LTD