TWI309535B - Method for eliminating noise on earphone insertion - Google Patents

Description

130953^twf.doc/e IX. Description of the invention: [Technical field of the invention] The present invention relates to a method for eliminating earphone noise, combining a soft and hard body to eliminate earphone insertion, and so on, especially in the prior art. method. Generally used to amplify audio, difficult audio semiconductor components, and its audio circuit in the work = 曰 audio system fblas out audio signals. However, when the user pushes the ear down, and the wheel component is 'since because of the electrical connection of the earphone connector and the sound system: the semi-conducting bias voltage is generated in order to solve this noise problem, there is a fixed delay circuit. Unit, _ solid;:: frequency chip will be additionally integrated - a delay time, the bias voltage is raised: release:: the voltage of the segment after the power supply of the helmet method to make 1 close the door t this method will Because of the extra house, the voltage ripple will continue to increase the discomfort and inconvenience of listening. In the case of the exploit, both will cause the user to work in the industry === method is based on mute (M_ for the noise; small (standby, STB) operation caused by the pick-up and STR access software according to The order of the MUTE and (10) pins on the wafer is controlled in a sequence to maintain the stability of the biased power minus 130953>54twf.doc/e

Less than a dull problem. However, because the MUTE pin and the STB pin in the various audio chips are different in the wiring configuration, even the mute signal and the stb tfc generated by the two pins are not necessarily stable in the impurity state. SUMMARY OF THE INVENTION The purpose of the present invention is to store and remove the earphone insertion noise to achieve the elimination of the second === frequency output line. For other purposes, the present invention proposes to include an audio chip and an audio output line. Noise: The party: === tone ^ The input and output of the chip 埠 100 first use this θ frequency to provide power to the audio output line Ζ 2 Q_t, _) from the input and output 埠 the headset has been inserted, then turn off the invention Another type is proposed; except for::: the voltage of the road. To solve the problem of inserting headphones into a charter to insert noise, suitable for sound playback, t4q chip and audio output line. Step: First, detect the problem of ear ^ θ wood sound. The method includes the following headphones that have not been inserted into the sound and placed into the sound playback device. If the output is 2, the voltage is supplied to the audio, and the transmission on the audio chip is inserted into the motion path of the sound playback device, and when the ear sound playback device is detected, the input material 2 is turned off and the earphone is inserted into the month. The voltage provided by the bee is provided; if the ear 13 Ο 9 5 S^twf.doc/e is inserted into the sound playback device, the input/output 埠 does not provide voltage to the audio output line. The invention provides a voltage to the audio output line through the output input of the audio chip, and preliminarily increases the bias voltage of the audio output line (bias volta(10) to the working voltage of the audio chip, thereby effectively avoiding the insertion of the earphone into the sound playing device. The set voltage produces a _jump problem, which in turn eliminates the noise caused by the voltage jump. The above and other objects, features and advantages can be more obvious. Closed, for details [Embodiment] This is =:=:: 'The following special example as noise ==== Real: Machine plug-in frequency output line sound playback device, open = two 曰 = piece And the sound output is provided to provide an input wheel for the audio output β to be turned on when the sound is played back ^i). For example, an electrical house can be provided for the audio output line. 1 J 2, input and output itch If there is no such person to insert this sound playback device (step 120). What is the power to turn the audio out of the line (step one is to measure the earphone insertion, then I30953^twf.d〇c/e is turned off by the input and output itch to the earphone insertion, ie / less ^ 130). Among them, when the detection can reduce the consumption of the electricity provided by the ( 璋 四 四 四 四 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不=::== audio and video rims ^ nI , , output channels in the device 9 (1) (step 15 (1) more t ^ ^ ^ continue to provide voltage to the audio line voltage for the audio day W feed to the audio The output is the output voltage of the input material - half. W is, for example, worthwhile - mentioning that 'the insertion or removal of the noise insertion in the headphone is performed by software, for example, and the input is turned off and off. It can also be controlled by software to reduce the consumption. In addition, in this implementation, the sound playback device can be a fixed-digit assistant, a Walkman, or a third-generation sound file compression grid 0 ^ 3, ΜΗ ) player 2 is a circuit diagram of a sound playback 2 frequency output line according to a preferred embodiment of the present invention, as shown in FIG. 2 'When the earphone is not "machine socket 24 '" in the DC blocking capacitor C1 (its capacitance value is, for example, 1 〇〇 micro pull) and direct current Before the capacitance C2 (its capacitance value is, for example, 100 microfarads), a voltage dividing circuit composed of a lightning resistor R1 and a resistor R3 in series, and a voltage dividing circuit composed of a resistor squash resistor R4 connected in series may be connected in parallel. Will enter the voltage provided by ^ 13 Ο 953 & twf.doc / e output 210 (for example, the negative output terminal 220 of the 28 volt road and the audio output line frequency wheel outlet line to advance the t-direction of the audio wheel on the line Output 230 volts. Aichi South (for example, increase to 14 in the future, the voltage of the earphone plugged into the headphone jack 24 has been increased to and the audio 曰 due to the 曰 frequency wheel out of the line to avoid the insertion of the earphone, so that the sound can be avoided. Among them, the resistance R pad resistance R2, resistance ^ = and the generation of noise resistance value, for example, need to maintain the current '= electric current is too large, but well known to those skilled in the art, ^ the range of the resistance value of 2, the user can see the actual needs: the most size. w Week baskets some resistors - once (four) software detects that the headphones have been plugged into the headphones to insert the output 珲 21 〇 power supply: 'This will not only reduce the generation of current, but also can avoid ^ ^ ^. Audio output line The voltage, while making _ ^= ~ and being mixed into the sound of the problem. Straight f,,, the text of the sound of the Yangkou 240 pulled out 'only then _ the motor to provide the electric station audio output track. = is a flow chart of a method for eliminating the green in accordance with another preferred embodiment of the present invention. First, whether the earphone has been inserted into the second playback device (step M0), wherein the sound broadcast device can be used for a mobile phone, Personal digital assistant, walkman, or third-generation sound file compression doc/e 130953^

It: edit 1〇¥3, MP3) player, etc. (4), and if the detection result is found that the earphone has not been inserted into the sound before the green defeat 1 use the input output of the daily frequency chip to provide audio input; #Γ·Γ33()). The noise problem caused by this advancement of the voltage on the audio output line. In this embodiment, the voltage supplied to the audio output line is set to 2, and = __ is read and read _ 4: not = the action of the earphone insertion, then _step == detection. Therefore, once the earphone insertion is detected, the f pressure provided by the enthalpy is entered (step 35G), and the _ _ 2 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠 埠In the example, the insertion of the earphone increases the voltage of the audio wheel out to the line in advance, thereby avoiding the noise generated when the earphone is inserted into the earphone in the future. Although the invention has been disclosed in the preferred embodiment, the skilled person is familiar with the art, and does not deviate from: the scope of the issue = the scope of the patent, the patent scope _ definer ^ Lin Mingzhi protection [pattern BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a method for transmitting noise in accordance with the present invention. The earphone is inserted into the sound of the preferred embodiment, and the sound playing device is inserted into the second embodiment - the canceling earphone shown in the preferred embodiment. [Main component symbol description] Beep = two steps: the preferred embodiment of the present invention The elimination of the earphone insertion 21〇: input and output 槔 220 • the negative wheel end 230: the forward wheel end 240: the headphone jack. This step of the implementation of the method of eliminating the earphone plug Yagichi

Claims (1)

13095 twf.doc/e X. Patent application scope: 1. A method for eliminating the noise insertion of the earphone. When the machine is inserted into the sound playback device, the i-wound-ear device includes an audio crystal, and the voice is recognized separately. The sound playing step: a cymbal and an audio output line, the method includes: using an input of the audio chip to output an output line, and the voltage is used to indicate whether the earphone is inserted into the sound. After detecting that the headset is plugged in, = acknowledge the voltage. The input method is as follows: 2. The method described in the request item, :: when a _ start "=; ΐ: 3. The method described in claim 1, further includes: detecting whether the headset is unplugged And the power|detecting when the earphone is pulled out, the input and output materials are started to be provided. 4. The method as described in claim 1, the mobile phone, the personal digital assistant, the portable == playing the skirt, including Kiss 3, ^ generation of the sound file compression format of the method of the method 1, wherein the voltage is the method of the audio chip, wherein the voltage is the input and output 12 7. As claimed in claim 1 The method described, the software detection. The insertion and removal of the earphone is through 8. The method described in claim 1, wherein the closing and closing are controlled by software. 6 The opening of the drama 9. A method for eliminating the noise of the earphone insertion , the insertion of the machine - the sound produced by the sound playback device, in the elimination of the ear-ear device includes - the audio chip and the - audio wheel line, in the sound playback step: the (10) way' the method includes whether the following headphones have been inserted Sound playback, right, the headset is not inserted Play, an input wheel 姐 姐 纠 、 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Providing the electric farmer, the input wheel is out