CN101316422B - Mobile terminal and method for working as audio apparatus speaker - Google Patents
Mobile terminal and method for working as audio apparatus speaker Download PDFInfo
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- CN101316422B CN101316422B CN200810126860A CN200810126860A CN101316422B CN 101316422 B CN101316422 B CN 101316422B CN 200810126860 A CN200810126860 A CN 200810126860A CN 200810126860 A CN200810126860 A CN 200810126860A CN 101316422 B CN101316422 B CN 101316422B
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Abstract
The invention discloses a mobile terminal which comprises an audio signal input unit, an audio signal processing unit and an audio signal output unit. The audio signal input unit is used for receiving audio signals output by audio equipment through an audio connecting line on an audio signal input port by an audio signal input pin, and then transmitting the audio signals onto an audio signal input channel corresponding to the audio signal input pin; the audio signal processing unit is used for receiving the audio signals on the audio signal input channel and analyzing and processing the received audio signals by an internal audio processing chip; the audio signal output unit is used for outputting the audio signals analyzed and processed by the audio signal processing unit to audio output equipment of the mobile terminal to carry out audio playing. The invention further discloses a method for adopting the mobile terminal as an audio equipment loudspeaker and realizes that the audio signals in the audio equipment are played through the loudspeaker of the mobile terminal, thereby being convenient for users to play the audio signals in the audio equipment by the loudspeaker so as to provide more experience for the users.
Description
Technical field
The present invention relates to the voice playing technology, be meant a kind of portable terminal and the method for putting thereof especially outward as audio frequency apparatus.
Background technology
Along with the continuous development of electronic technology, consumer electronic product is employed more and more widely, the people's of becoming increasingly abundant life.Become the indispensable carry-on articles of people such as this type of audio frequency apparatus of MP3, MD, walkman, PDA, PSP.The volume of these audio frequency apparatuses is generally smaller, and this design can be satisfied stylishness, user's request such as easy to carry.But because the restriction of volume, self does not all have loud speaker most audio frequency apparatuses, can not be used for sound is put outward; Even self has loud speaker audio frequency apparatus, the performance of the outer playback matter that its loud speaker provides is not high yet, basically, the user who uses this type audio frequency apparatus still with earphone as main audio output device.
But in some cases, the user often hopes to play sound through the mode of putting outward or music appreciating, and for this demand, at present, the user can only realize through buying extra annexes such as loud speaker or sound equipment.So, for the user, a lot of unnecessary spending have just been increased; And; At present on the market can often all only be directed against some concrete digital electric unit type with audio amplifier by loud speaker in addition, versatility is relatively poor, simultaneously; Because the volume of loud speaker and audio amplifier is all bigger, so in use also there is the problem of carrying inconvenience.
At present, the mobile communication technology development is very fast, and portable terminals such as mobile phone have become a kind of essential life, the work consumer goods.The function that portable terminal self loads is more and more rich and varied, and functions such as video, audio frequency have all reached the relatively degree of specialty.For example, present popular music phone, the performance of himself loud speaker has reached higher level, and better tone quality can be provided, and is used for playing back music and other sound.But from present user's operating position, the loud speaker of mobile phone mainly still for mobile phone self service, is used for playing the audio file that is stored in mobile phone this locality.
On the more existing more novel mobile phone, occur using the USB connecting line that mobile phone is connected on the computer, play mobile phone as peripheral hardware the function of the audio files in the computer through installing drive file on computers.Mention a kind of scheme in the one Chinese patent application that on June 27th, 2007, disclosed publication number was CN1988701A; Through usb bus mobile phone and PC are coupled together; The first-class peripheral hardware as computer of loud speaker, Mike, memory, the shooting of mobile phone is used, can realize using the function of the audio files of mobile phone play PC side.But this scheme is primarily aimed at the expanded application of mobile phone to PC, and range of application is narrower, and needs the cooperation of PC side drive software, uses inconvenience.
Summary of the invention
In view of this, main purpose of the present invention is the method that a kind of portable terminal is provided and puts as audio frequency apparatus outward, realizes the outer inconvenient problem of putting to solve existing audio frequency apparatus.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of portable terminal, the audio signal input end mouth of said portable terminal is connected with the Audio output port of audio frequency apparatus through audio connecting cord, and said portable terminal comprises:
The audio signal input unit; Be used at said audio signal input end mouth; Receive the audio signal of audio frequency apparatus through the audio signal input pin through audio connecting cord output, and with said audio signal transmission to said audio signal input pin corresponding audio signal input channel;
Audio signal processing unit is used to receive the audio signal on the said audio signal input channel, and through the Audio Processing chip of inside the audio signal that receives is carried out analyzing and processing;
The audio signal output unit is used for playing to the audio output apparatus of portable terminal the audio signal output after the audio signal processing unit analyzing and processing;
The auxiliary circuit unit is used to set up the audio signal input channel between said audio signal input unit and the said audio signal processing unit;
Control unit is used to control the analyzing and processing of said audio signal processing unit to audio signal, and said audio signal input channel is managed;
Said audio signal input end mouth is the special audio signal input end mouth of ear port or increase; The special audio signal input end mouth of said increase comprises an audio signal input pin at least.
Said audio connecting cord is made up of two terminals and a tone frequency channel wire, and one of them terminal is the General Audio connection plug, is used for the Audio output port of accessing to audio equipment; Another terminal is the audio frequency connection plug of the audio signal input end mouth type of the said portable terminal of coupling, is used to insert the audio signal input end mouth of said portable terminal.
The present invention also provides a kind of method that portable terminal is put as audio frequency apparatus outward, and this method comprises:
The Audio output port of audio frequency apparatus and the audio signal input end mouth of portable terminal are coupled together through audio connecting cord;
On said audio signal input end mouth, receive the audio signal of audio frequency apparatus through the audio signal input pin through audio connecting cord output, and with said audio signal transmission to said audio signal input pin corresponding audio signal input channel;
Audio Signal Processing chip in the said portable terminal receives the audio signal on the said audio signal input channel, and the audio signal that receives is carried out analyzing and processing;
Carry out voice playing for the audio output apparatus of portable terminal the audio signal output after the said analyzing and processing;
Set up the audio signal input channel between said audio signal input end mouth and the said Audio Signal Processing chip through the auxiliary circuit in the portable terminal;
Through the Control Software in the said portable terminal said Audio Signal Processing chip is controlled the analyzing and processing process of audio signal, and/or said audio signal input channel is managed;
Said audio signal input end mouth is the special audio signal input end mouth of ear port or increase; The special audio signal input end mouth of said increase comprises an audio signal input pin at least.
Said mode through audio signal input pin transmitting audio signal is: multiplexing existing audio signal input pin transmission or increase new audio signal input pin.
The present invention expands the audio frequency input pin function in the audio signal input end mouth of portable terminal; And the cooperation of the auxiliary circuit through portable terminal; Set up the audio signal input channel between audio frequency input pin and the Audio Processing chip; Directly portable terminal is connected with audio frequency apparatus through an audio connecting cord then, make the audio signal of audio frequency apparatus output can be directly thus audio connecting cord to get into portable terminal inner, and through the processing of the inner Audio Processing chip of portable terminal; Finally, particularly come out through loudspeaker plays through the audio output apparatus of portable terminal.In this way; The user needn't buy or carry bigger loud speaker of volume or audio amplifier; Directly audio frequency apparatus is connected with portable terminal, with portable terminal as a portable loudspeaker apparatus, sound or music that just can audio plays equipment; Make things convenient for the user that the audio signal in the audio frequency apparatus is carried out outer operation of putting, increased user's Experience Degree.In addition; The function that the portable terminal that proposes to the present invention is put outward as audio frequency apparatus; Portable terminal among the present invention need not increase special Audio Processing chip; Also need special driving software be installed in the audio frequency apparatus side, the improvement that only need on the basis of existing portable terminal, carry out aspect the software and hardware just can realize.
Description of drawings
Fig. 1 is the structural representation of audio connecting cord of the present invention;
Fig. 2 forms sketch map for the structure of portable terminal of the present invention;
Fig. 3 is put sketch map outward for the audio frequency of being realized by mobile phone in the embodiment of the invention;
Fig. 4 is the pin sketch map one of the ear port of mobile phone in the embodiment of the invention;
Fig. 5 is the pin sketch map two of the ear port of mobile phone in the embodiment of the invention;
Fig. 6 is the pin sketch map that mobile phone increases the special audio signal input port in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further set forth in detail.
In the present invention, through an audio connecting cord, audio frequency apparatus and portable terminal are coupled together, the loud speaker through mobile terminal side comes out the sound playing of audio frequency apparatus.
The audio connecting cord that uses among the present invention is made up of two terminals and a tone frequency channel wire, and one of them terminal is the General Audio connection plug, is used for the Audio output port of accessing to audio equipment; Another terminal is the audio frequency connection plug that is mated with the audio signal input end mouth type of portable terminal; Be used to insert the audio signal input end mouth of portable terminal, the shape of this terminal is determined by the realization of the audio signal input end mouth of concrete portable terminal; The Audio output port of audio frequency apparatus is ear port generally speaking, as, the audio signal output of audio frequency apparatuses such as present MP3, walkman, MD is main with the earphone way of output mostly.So, the audio signal of audio frequency apparatus output just can get into the audio signal input end mouth of portable terminal through this audio connecting cord.
Shown in Figure 1ly be the structural representation of audio connecting cord of the present invention, a, b, c represent the implementation of 3 kinds of audio connecting cords among the figure, and terminal 11 is used to insert the audio signal input end mouth of portable terminal among the audio connecting cord a; Terminal 12 is used for the Audio output port of accessing to audio equipment, and the structure of this terminal 12 is identical with the structure of the ear port that present audio frequency apparatus such as MP3, walkman etc. attach, and is the earphone interface of general 3.5mm; Tone frequency channel wire 13 is made up of two ground wires and two Audio Data Lines, and wherein, two Audio Data Lines are used for transmitting the audio signal of L channel and R channel respectively, and two ground wires are used for preventing the interference of other signals.The terminal 14 of audio connecting cord b and the other two kinds of audio frequency connection plugs that are connected with the audio signal input end mouth of portable terminal of the terminal of audio connecting cord c 15 expressions, terminal 11,14 and 15 all is an earphone interface relatively more commonly used at present.Certainly, the formation of the terminal structure of audio connecting cord and tone frequency channel wire is not limited thereto.
Fig. 2 forms sketch map for the structure of portable terminal of the present invention.
Audio signal input unit 201; Be used for audio signal input end mouth at portable terminal; Receive the audio signal of audio frequency apparatus through the audio signal input pin through audio connecting cord output, and with the audio signal transmission that receives to audio signal input pin corresponding audio signal input channel.
In the present invention, contain the not audio signal input pin of determined number in the audio signal input end mouth of portable terminal.When the audio signal input end mouth receives the audio signal that audio connecting cord transmits; Through some or several audio signals input pin with audio signal transmission on the audio signal input channel; When if the audio signal that receives is one road signal; Like monaural audio signal, can audio signal be input on the audio signal input channel through an audio signal input pin in the audio signal input end mouth so; When if the audio signal that receives has two road signals, as contain the audio signal of left and right acoustic channels, can audio signal be input on the audio signal input channel through two audio signal input pins in the audio signal input end mouth so.
Audio signal processing unit 202 is used for the audio signal on the received audio signal input channel, and the audio signal that receives is carried out analyzing and processing.
After audio signal processing unit 202 receives the audio signal that is transmitted by the audio signal input channel, it is analyzed and handles, in portable terminal, come the analyzing and processing audio signal by audio signal processing unit 202 inner Audio Processing chips.Analyzing and processing for audio signal is identical with prior art, repeats no more here.
The portable terminal that has the voice playing function in the prior art, like mobile phone, from the audio signal input pin to being not possess the needed transmission channel that is used for input audio signal of the function that proposes corresponding to the present invention the Audio Processing chip.Needing increases or sets up the transmission of audio signals path by the auxiliary circuit unit on the Audio Processing chip, i.e. audio signal input channel among the present invention.The foundation of transmission of audio signals passage is accomplished by auxiliary circuit; Particularly; Can the pin on pin in the audio input port and the Audio Processing chip be coupled together through holding wire; Like this, the audio signal input channel from audio input port to the Audio Processing chip has just been set up.
Audio signal output unit 204 is used for carrying out voice playing for the loud speaker 205 of portable terminal the audio signal output after audio signal processing unit 202 analyzing and processing.
The audio signal input channel that 206 pairs of auxiliary circuit unit of control unit 203 are set up is managed; As control the circuit gain of this audio signal input channel; Can also manage through this passage and carry out some additional Audio Processing functions that audio signal transmission is brought; When finally playing, can regulate its audio, volume etc. through loud speaker like said audio signal.
The analyzing and processing of 202 pairs of audio signals of control unit 206 control audio signal processing units; And the concrete implementation method that the audio signal input channel that auxiliary circuit unit 203 is set up is managed has: can increase a function corresponding menu; As; The scheme of corresponding multiplexing ear port sound intermediate frequency input pin, needing increases the switching that a function menu is supported headset mode and speaker mode, and the startup of speaker mode; For the scheme that can control audio; Need support the selection of different balanced mode through increasing the function corresponding menu; The filtering of concrete different balanced mode and need realize through existing specific algorithm some control operations of passage can also comprise the option that the volume of the output of loud speaker or earphone is regulated simultaneously in this menu.The user accomplishes the startup to speaker mode or headset mode function through this function menu like this, closes, and volume is regulated, effect control or the like operation.
To carry out detailed explanation as the portable terminal object with mobile phone below.Among several embodiment below, the ear port of mobile phone as the audio signal input end mouth, as audio output port, is coupled together through audio connecting cord the ear port of audio frequency apparatus with the ear port of mobile phone and the ear port of audio frequency apparatus.It is to be noted; On portable terminal; The type of audio signal input end mouth is not limited to ear port, also can realize that this special audio signal input end mouth can be standard or commonly used ear port through on portable terminal, increasing other ports that are specifically designed to input audio signal; Also can be special audio input interface, comprise an audio frequency input pin at least.
Fig. 3 is put sketch map outward for the audio frequency of being realized by mobile phone in the embodiment of the invention.
In the present embodiment, the ear port of using mobile phone is as the audio signal input end mouth.
The audio signal of the audio frequency apparatus that audio connecting cord transmits enters into mobile phone inside through ear port 301.Audio signal has two kinds in the inner transmission channel of mobile phone, and a kind of is original earphone signal output channel 31 in the mobile phone, and a kind of is the loudspeaker signal passage, comprises loudspeaker signal input channel 32 and loudspeaker signal output channel 33.
Audio signal gets in the mobile phone through the audio frequency input pin in the ear port; The user need select to open the loudspeaker function pattern through function menu on mobile phone; With the output equipment of loud speaker as audio signal; Control unit can be controlled auxiliary circuit and close the original earphone signal output channel 31 of mobile phone at this moment, opens loudspeaker signal input channel 32 then.Audio signal is transferred to Audio Processing chip 302 through loudspeaker signal input channel 32 like this, through analyzing and processing, finally exports to loud speaker 303 by loudspeaker signal output channel 33, carries out voice playing.
Here it is to be noted; Use under the situation of ear port as the audio signal input end mouth of mobile phone; Because what the ear port of the input port of audio signal and mobile phone was used is same port, so during the unlatching of loudspeaker function pattern, the ear-phone function of mobile phone just need be closed thereupon.Otherwise earphone signal output channel 31 can produce conflict with loudspeaker signal input channel 32.Otherwise when the mute speaker functional mode, control unit can be controlled auxiliary circuit mute speaker signal input channel 32, the original earphone signal output channel 31 of starting hand-set, the ear-phone function of recovery mobile phone.
Wherein, earphone signal output channel 31, loudspeaker signal input channel 32 and loudspeaker signal output channel 33 are set up by the auxiliary circuit on the Audio Processing chip 302 304.
Audio Signal Processing chip in mobile phone comprises two parts at least: front end unit is the unit that the simulated audio signal passage is managed, and backend unit is to accomplish analog signal is carried out digitlization and is transferred to the unit of digital baseband process chip through digital audio interface.For the processing of audio chip to audio signal; Following two kinds of schemes can be arranged: a kind of scheme is; The audio signal of input can directly be transferred to the input of certain voice-grade channel of base-band audio process chip, and the output of this passage is connected to loud speaker or earphone.Configure the channel pattern of base-band audio chip, can accomplish the audio signal of input is exported at loud speaker end or earphone end.Another kind of scheme is, after the audio signal process base-band audio process chip of input, directly through loud speaker output; But the backend unit that gets into the Audio Signal Processing chip; Sample, quantize, convert voice data after the coding to; Send the digital baseband process chip to through audio-frequency bus then, store certain storage area of BBP into.Processing operation through the voice data in the storage area being carried out need afterwards; Algorithm such as according to some audio frequency carries out operations such as equilibrium, filtering to the voice data in the storage area; Make the tonequality of output sound can better meet experience requirements of users, then the data of finishing dealing with are exported at loud speaker end or earphone end later on through flow processs such as digital-to-analogue conversion, gain controlling.Dual mode through foregoing description; Perhaps similar mode can realize the audio signal of digital equipment output is passed through the audio input port input handset of mobile phone; Then through switching the base-band audio process chip that good passage gets into mobile phone; Handle accordingly, export from the speaker port of mobile phone at last.
Controlled entity 305 can be managed earphone signal output channel 31, loudspeaker signal input channel 32 and loudspeaker signal output channel 33, as manages the parameter of each signal transmission passage, for example the parameters such as circuit gain of transmission channel; Control Software 305 can also be come the play mode of control audio through the mode of setting up function menu; As select the output equipment of audio signal: earphone or loud speaker etc.; Concrete; When audio connecting cord couples together mobile phone and audio frequency apparatus, when the audio signal of audio frequency apparatus was input to the ear port of mobile phone, the Control Software of mobile phone can show a function menu on mobile phone screen; Supply the user to select to use the output equipment of which kind of audio frequency apparatus as audio signal; As, the user selects the output equipment of loud speaker as audio signal, and then auxiliary circuit 304 is set up speaker mode signal input channel 32 and is supplied transmission of audio signals with speaker mode signal output channels 33; Simultaneously, Control Software 305 can also be come the audio volume of controls playing audio signal, the open and-shut mode of loud speaker etc., result of broadcast etc. through the mode of setting up function menu.
Fig. 4 is the pin sketch map one of the ear port of mobile phone in the embodiment of the invention.
Be used for connecting the audio connecting cord of mobile phone and audio frequency apparatus; Its pin that is used to insert the terminal of mobile phone pin of reserving with the handset earphone port of transmitting audio signal of being used for that distributes distributes and will mate, and can get into the audio signal input channel in the mobile phone through audio connecting cord with this audio signal that guarantees audio frequency apparatus output.Wherein, the pin of reserving in the handset earphone port is used for transmitting the audio signal of sound intermediate frequency equipment output of the present invention, particularly, can multiplexing ear port in existing pin, also can use the special audio signal input pin that in ear port, increases.
401 indications are a kind of earphone standard port of mobile phone among the figure, comprise earphone L channel pin 402, earphone R channel pin 403, earphone MIC pin 404 and earphone ground wire pin 405.This shows in this ear port, do not have unnecessary pin to be used for the audio signal of transmission of audio equipment output, so, can carry out transmission of audio signals by multiplexing existing pin.Concrete, can select earphone L channel pin 402, earphone R channel pin 403, earphone MIC pin 404 any one or two pin wherein.When the audio signal that transmits has only one the tunnel, like, monophonic audio signal, can be multiplexing earphone L channel pin 402, earphone R channel pin 403, earphone MIC pin 404 wherein any pins; When the signal that transmits has two-way, as comprise the audio signal of left and right sound channels, can be multiplexing earphone L channel pin 402, earphone R channel pin 403, earphone MIC pin 404 wherein any two pins.
Correspondingly, set up and multiplexing pin corresponding audio signal input channel through auxiliary circuit.As shown in Figure 4, passage 1 is the audio frequency output channel of existing corresponding earphone L channel pin 402 in the mobile phone, and 2 is the audio frequency output channel of corresponding earphone R channel pin 403, and 3 is the audio input channel of corresponding earphone MIC pin 404.If; The audio signal that audio connecting cord transmits has two-way, so can be multiplexing earphone R channel pin 403 and earphone MIC pin 404, then correspondingly; Auxiliary circuit will be set up the audio signal input channel 4 and 5 corresponding to these two pins, is connected with Audio Processing chip 406.The audio signal that process Audio Processing chip 406 analyzing and processing are crossed finally is transferred to loud speaker 407 through audio signal output passage 6 and 7 and plays back; If the audio signal that audio connecting cord transmits has one the tunnel; Suppose multiplexing earphone R channel pin 403; Audio signal is transferred in the Audio Processing chip 406 by audio signal input channel 4 so; Through analyzing and processing, finally export to loud speaker through audio signal output passage 6 or 7, carry out voice playing.
Fig. 5 is the pin sketch map two of the ear port of mobile phone in the embodiment of the invention.
Pin 506 and 507 is an audio frequency input pin newly-increased in the ear port among the figure; Correspondingly; Set up and this two pin corresponding audio signal input channel d and e by auxiliary circuit; Be used for the audio signal of transmission of audio equipment output, in the Audio Processing chip audio signal carried out analyzing and processing then, export to loud speaker by audio signal output passage f and g and play.
It is pointed out that to have unnecessary audio transmission pin in some ear port, so just need in ear port, not increase new pin, directly use unnecessary pin just can carry out transmission of audio signals.
Fig. 6 is the pin sketch map that mobile phone increases the special audio signal input port in the embodiment of the invention.
Among the present invention,, can also on mobile phone, increase special audio signal input end mouth except using the existing ear port of mobile phone as the audio signal input end mouth.
606 is audio signal input end mouth newly-increased on mobile phone among the figure; 607 and 608 are newly-increased audio signal input pin 1 and 2; Correspondingly, set up and these two pin corresponding audio signal input channels 13 and 14, be used for the audio signal of transmission of audio equipment output by auxiliary circuit.
It is to be noted; In the present embodiment, used the newly-increased audio signal input end mouth 606 that is specifically designed to transmitting audio signal, so; The user can select headset mode or speaker mode as the output mode of audio signal in mobile phone through function menu on mobile phone.
If the user has selected headset mode; Audio signal is through audio signal input channel 13 and/or 14 so; Through the analyzing and processing of Audio Processing chip 610, finally export to earphone standard port 601 through audio signal output path 10 and/or 11, carry out voice playing.
If the user has selected speaker mode; Audio signal is through audio signal input channel 13 and/or 14 so; Through the analyzing and processing of Audio Processing chip 610, finally export to loud speaker 609 through audio signal output passage 15 and/or 16, carry out voice playing.
Among the present invention, following about the method flow that portable terminal is put outward as audio frequency apparatus:
1, the Audio output port of audio frequency apparatus and the audio signal input end mouth of portable terminal are coupled together through audio connecting cord.
2, on the audio signal input end mouth, receive the audio signal of audio frequency apparatus through the audio signal input pin through audio connecting cord output, and with audio signal transmission to said audio signal input pin corresponding audio signal input channel.
3, the audio signal on the Audio Signal Processing chip received audio signal input channel in the portable terminal, and the audio signal that receives carried out analyzing and processing.
4, carry out voice playing for the audio output apparatus of portable terminal the audio signal output after the analyzing and processing.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (4)
1. portable terminal, the audio signal input end mouth of said portable terminal is connected with the Audio output port of audio frequency apparatus through audio connecting cord, it is characterized in that, and said portable terminal comprises:
The audio signal input unit; Be used at said audio signal input end mouth; Receive the audio signal of audio frequency apparatus through the audio signal input pin through audio connecting cord output, and with said audio signal transmission to said audio signal input pin corresponding audio signal input channel;
Audio signal processing unit is used to receive the audio signal on the said audio signal input channel, and through the Audio Processing chip of inside the audio signal that receives is carried out analyzing and processing;
The audio signal output unit is used for playing to the audio output apparatus of portable terminal the audio signal output after the audio signal processing unit analyzing and processing;
The auxiliary circuit unit is used to set up the audio signal input channel between said audio signal input unit and the said audio signal processing unit;
Control unit is used to control the analyzing and processing of said audio signal processing unit to audio signal, and said audio signal input channel is managed;
Said audio signal input end mouth is the special audio signal input end mouth of ear port or increase; The special audio signal input end mouth of said increase comprises an audio signal input pin at least.
2. according to the said portable terminal of claim 1, it is characterized in that said audio connecting cord is made up of two terminals and a tone frequency channel wire, one of them terminal is the General Audio connection plug, is used for the Audio output port of accessing to audio equipment; Another terminal is the audio frequency connection plug of the audio signal input end mouth type of the said portable terminal of coupling, is used to insert the audio signal input end mouth of said portable terminal.
3. the method that portable terminal is put outward as audio frequency apparatus is characterized in that, this method comprises:
The Audio output port of audio frequency apparatus and the audio signal input end mouth of portable terminal are coupled together through audio connecting cord;
On said audio signal input end mouth, receive the audio signal of audio frequency apparatus through the audio signal input pin through audio connecting cord output, and with said audio signal transmission to said audio signal input pin corresponding audio signal input channel;
Audio Signal Processing chip in the said portable terminal receives the audio signal on the said audio signal input channel, and the audio signal that receives is carried out analyzing and processing;
Carry out voice playing for the audio output apparatus of portable terminal the audio signal output after the said analyzing and processing;
Set up the audio signal input channel between said audio signal input end mouth and the said Audio Signal Processing chip through the auxiliary circuit in the portable terminal;
Through the Control Software in the said portable terminal said Audio Signal Processing chip is controlled the analyzing and processing process of audio signal, and/or said audio signal input channel is managed;
Said audio signal input end mouth is the special audio signal input end mouth of ear port or increase; The special audio signal input end mouth of said increase comprises an audio signal input pin at least.
4. according to the said method that portable terminal is put outward as audio frequency apparatus of claim 3; It is characterized in that said mode through audio signal input pin transmitting audio signal is: multiplexing existing audio signal input pin transmission or increase new audio signal input pin.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101505333A (en) * | 2008-12-18 | 2009-08-12 | 上海闻泰电子科技有限公司 | Mobile terminal having direct recording function and direct recording method thereof |
| CN101848408A (en) * | 2010-04-29 | 2010-09-29 | 上海华勤通讯技术有限公司 | Built-in mobile phone speaker and operating method thereof |
| CN102541768B (en) * | 2010-12-21 | 2015-11-25 | 联想(北京)有限公司 | A kind of mobile terminal, state switching method and display packing |
| CN102025836B (en) * | 2010-12-23 | 2015-07-29 | 惠州Tcl移动通信有限公司 | A kind of mobile terminal and recording device thereof |
| CN102821189B (en) * | 2011-06-09 | 2014-11-12 | 联想移动通信科技有限公司 | Wireless listening method, mobile terminal and system |
| CN102355518A (en) * | 2011-09-28 | 2012-02-15 | 惠州Tcl移动通信有限公司 | Mobile phone and audio processing method thereof |
| SE538209C2 (en) * | 2014-10-30 | 2016-04-05 | Zound Ind Int Ab | An audio interface arrangement and a handheld device comprising the audio interface arrangement |
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| CN1818889A (en) * | 2005-02-08 | 2006-08-16 | 台均科技（深圳）有限公司 | Audio/USB signal multiplexing line, broadcasting memory and multiplexing transmitting broadcasting memory system |
| CN101162894A (en) * | 2006-10-13 | 2008-04-16 | 鸿富锦精密工业（深圳）有限公司 | Sound-effect processing equipment and method |
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| CN1818889A (en) * | 2005-02-08 | 2006-08-16 | 台均科技（深圳）有限公司 | Audio/USB signal multiplexing line, broadcasting memory and multiplexing transmitting broadcasting memory system |
| CN101162894A (en) * | 2006-10-13 | 2008-04-16 | 鸿富锦精密工业（深圳）有限公司 | Sound-effect processing equipment and method |
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