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Method for eliminating codec initialization noise in mobile phone and mobile phone thereof

A mobile communication terminal and codec technology, which is applied in the field of initializing noise cancellation of mobile communication terminals and their codecs, can solve problems such as noise, and achieve the effect of eliminating noise.

Inactive Publication Date: 2007-11-14
INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that when the vocoder and the codec are initialized, the sound signal is appropriately switched, but when the vocoder and the codec are initialized, noise is generated due to the charging and discharging of the capacitor

Method used

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  • Method for eliminating codec initialization noise in mobile phone and mobile phone thereof
  • Method for eliminating codec initialization noise in mobile phone and mobile phone thereof
  • Method for eliminating codec initialization noise in mobile phone and mobile phone thereof

Examples

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Embodiment Construction

[0033] FIG. 1 is a configuration diagram of a mobile communication terminal according to an embodiment of the present invention.

[0034] As shown in FIG. 1 , the mobile communication terminal 100 according to the present invention includes: an input unit 110 , a display unit 120 , an RF unit 130 , a sound output unit 140 , a storage unit 150 and an MSM (mobile station modem) 160 .

[0035] The input unit 110 is provided with character keys, number keys and various function keys, and generates a key interrupt signal corresponding to the key input by the user, and sends it to the MSM 160 .

[0036] The display unit 120 is a display device such as a liquid crystal display (LCD), and displays various video or character data based on a display function control signal of the MSM 160 .

[0037] The RF unit 130 is controlled by the MSM 160 , receives a wireless signal transmitted from an antenna (not shown), converts the wireless signal into a necessary signal, and outputs it to the ...

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Abstract

A method for eliminating a codec initializing noise in a mobile communication terminal and the mobile communication terminal therefor are provided to offer a comfortable service to a user by eliminating a noise generated when an ear mike is used and to eliminate a noise generated by a DC bias voltage charged / discharged at a capacitor when a vocoder or a codec is initialized. A method for eliminating a codec initializing noise in a mobile communication terminal comprises the following several steps. A controller receives an ear mike connection signal from an ear mike connector and outputs a speaker amplifier off control signal to a speaker amplifier. The controller checks whether a key interrupt signal is inputted from an inputting unit. If so, the controller outputs a speaker selection control signal to a switch and checks whether a vocoder preparation end signal is inputted from a vocoder. If so, the controller turns on a standby time timer and checks whether a preset standby time has passed. If so, the controller outputs an ear mike selection control signal to the switch and terminates noise elimination steps).

Description

technical field [0001] The invention relates to a mobile communication terminal and a codec initialization noise elimination method thereof, particularly, when a vocoder (vocoder) and a codec (codec) are initialized, the sound signal is controlled to be switched to a speaker in an off state, so that the sound signal When an encoder and a codec are initialized, noise is generated by a DC bias voltage charged and discharged to a capacitor. The present invention provides a codec initialization noise elimination method for a mobile communication terminal and the mobile communication terminal to eliminate the noise. Background technique [0002] With the development of technologies related to mobile communication terminals, the types and performances of mobile communication equipment such as ear-mics are increasingly diversified. [0003] Existing mobile communication terminals decompress the compressed signal through a vocoder in order to output sound signals such as voice, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/19H04Q7/32H04B1/38H04B1/10
CPCH04B1/10H04B15/00H04M1/40
Inventor 洪道根朴永沐
Owner INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD