CN1856183A - Method and apparatus for identifying earphone forms - Google Patents
Method and apparatus for identifying earphone forms Download PDFInfo
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- CN1856183A CN1856183A CN 200510034287 CN200510034287A CN1856183A CN 1856183 A CN1856183 A CN 1856183A CN 200510034287 CN200510034287 CN 200510034287 CN 200510034287 A CN200510034287 A CN 200510034287A CN 1856183 A CN1856183 A CN 1856183A
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- earphone
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Abstract
A method and the equipment to identify the form of the headphone, that is fit for the audio phone jack of the headphone. The signal in the un-coding signal group creates the change of different high or low potential by the spring of the headphone insert mouthpiece when the headphone insert in the headphone audio phone jack. The signal in the un-coding signal group compares with a signal coding comparison table in order, estimates the form of the inserting headphone and start the function that the headphone should have.
Description
[technical field]
The invention relates to a kind of technology of identification apparatus, and particularly relevant for a kind of technology of identifying earphone forms.
[background technology]
In the flourish modern times of science and technology, people still hold one irresistible strength for sound.Good music can purify the popular feeling, for the modern who is full of pressure expresses decompression force, loosens mood.Even, along with the progress of science and technology, audio-visual devices, the development of communication apparatus, people lead also diversification thereupon of pipeline off for what oneself pressure was sought.When mood is unhappy, listen to the music; When being abused, make a phone call to pour out one's woes to friend by the teacher; In order to shift the fear that takes a flight, watch film on the aircraft or the like, the good mode of the decompression of all can yet be regarded as.But modern society's Development of Cities, whether interpersonal inhabitation activity space dwindles, when you overcome difficulties for the pressure of oneself unbridledly, be that other people bring invisible puzzlement also to need deep thinking repeatedly, and modern model just can yet be regarded as.Therefore, when you want to enjoy stereophonic shock effect at home, consider own arround neighbours' mood, please put on the earphone of stereo acoustic effect and enjoy the Beethovan who is specific to you; When coming off duty, you drive on the way home, how all cannot restrain one's anger just gratuitously abused, in the time of must looking for the people to pour out one's woes, consider and your the coexist safety of the driving on the road by boss, please put on mobile phone earphone, give vent to carefully to your good friend with microphone.Individual freedom is freely to be principle not stand in other's way, and this is only the real due performance of democracy.So airtight aboard space must pay attention to especially other people right can not, no matter therefore you will listen to the music or will see a film, all still to put on earphone and listen to and view and admire.
Earphone also can be described as head-telephone, is a kind of in Audio Transcription equipment, can accept session and be recorded in a kind of device on certain dictation machine.Earphone can roughly be divided into trifocal earphone and four end formula earphones, wherein, the trifocal earphone can be divided into again be used in the stereo system device and be used in microphone apparatus with etc. two types.Its three end of the trifocal earphone of stereo system device is respectively sound channel-sound channel-ground connection; Its three end of the trifocal earphone of microphone apparatus then is divided into microphone-sound channel-ground connection.In addition, four ends of four end formula earphones then are sound channel-sound channel-microphone-ground connection.But traditional earpiece audio socket can't be supported trifocal and four end formula earphones simultaneously, and socket is a kind of Connection Element, is used for one or more lead on the connecting circuit, makes plug and pegs graft and use.When this earpiece audio socket only is applicable to the trifocal earphone, when user's desire is used four end formula earphones, just must buy the earpiece audio socket that is applicable to four end formula earphones separately, not only also not hommization of the utmost point in waste, the use on the money.
[summary of the invention]
In view of this, in order to allow the earpiece audio socket can recognize the difference of the earphone that inserts, the present invention provides a kind of method and device of identifying earphone forms especially, no matter is that trifocal earphone or four end formula earphones all can be inserted on the same earpiece audio socket and use.
The invention provides a kind of method of identifying earphone forms, be applicable to that this method comprises in the earpiece audio socket of tool one earth terminal, a microphone end, one first sound channel end, one second sound channel end and a contact element: insert an earphone so that this earpiece audio socket produces corresponding one sets of signals to be encoded; Signal in this sets of signals to be encoded is imported a signal interpretation table of comparisons in regular turn; And pick out an earphone forms according to the result of this signal interpretation table of comparisons.
According to above-mentioned principal character, this sets of signals to be encoded comprises:
Whether one earphone interrupt request signal is sent by this contact element, have this earphone to insert in order to represent this earpiece audio socket;
One postal service interrupt request signal, whether the signal that is sent by this microphone end obtains after relatively, be a trifocal earphone in order to represent this earphone;
One detecting microphone/received signal, the signal that is sent by this second sound channel end be through relatively back acquisition, in order to representing this earphone forms of this trifocal earphone, and judges whether a microphone bias voltage need be provided; And
Whether one microphone interruption/earphone signal is provided according to this microphone bias voltage, starts the function of this trifocal earphone.
According to above-mentioned principal character, the discrimination method of this signal interpretation table of comparisons comprises:
When this contact element separated with this first sound channel end, then this earphone interrupt request signal was an electronegative potential, judged that this earpiece audio socket earless machine transplanting of rice goes into; And
When the electrical coupling knot of this contact element and this first sound channel end, then this earphone interrupt request signal is a high potential, judges that this earpiece audio socket has earphone to insert.
According to above-mentioned principal character, when this earphone interrupt request signal is high potential, more comprise:
When this postal service interrupt request signal is electronegative potential, judge that then this earphone is this trifocal earphone; And
When this postal service interrupt request signal is high potential, judge that then this earphone is one or four end formula earphones.
According to above-mentioned principal character, when this postal service interrupt request signal is electronegative potential, more comprise:
When this detecting microphone/received signal is electronegative potential, judge that then this earphone forms is the form of sound channel-sound channel-ground connection, does not need to provide this microphone bias voltage; And
When this detecting microphone/received signal is high potential, judge that then this earphone forms is the form of microphone-sound channel-ground connection, need provide this microphone bias voltage.
According to above-mentioned principal character, the method for described identifying earphone forms more comprises:
When detecting this microphone bias voltage of nothing, then setting this microphone interruption/earphone signal is high potential, starts the ear-phone function of sound channel-sound channel-ground connection form; And
When detecting this microphone bias voltage, then setting this microphone interruption/earphone signal is electronegative potential, starts the ear-phone function of microphone-sound channel-ground connection form.
According to above-mentioned principal character, when this postal service interrupt request signal is high potential, start the ear-phone function of sound channel-sound channel-microphone-ground connection form.
The device of a kind of identifying earphone forms of the present invention comprises an earphone socket, is begun by the insertion mouth of this earphone socket, comprises an earth terminal, a microphone end, one first sound channel end and one second sound channel end in regular turn; One first comparator, one input of this first comparator is electrically coupled to this microphone end, in order to relatively this microphone end and one first preset potential, and output comparative result: one second comparator, one input of this second comparator is electrically coupled to this second sound channel end, in order to relatively this second sound channel end and one second preset potential, and the output comparative result; One contact element: when not having earphone to insert this earphone socket and this first sound channel end electric property coupling, and when having earphone to insert this earphone socket, separate with this first sound channel end; One audio coding decoder, be electrically coupled to output, this contact element and this first and second sound channel end of this first and second comparator, and judge whether that according to the output of this first and second comparator and the current potential of this contact element earphone exists and the form of earphone.
According to above-mentioned principal character, the device of described identifying earphone forms more comprises:
One first bias circuit, this first bias circuit is electrically coupled between this first comparator and this earth terminal, and this first preset potential is provided; And
One second bias circuit, this second bias circuit are electrically coupled between this second comparator and this second sound channel end, and this second preset potential is provided.
According to above-mentioned principal character, the one the second bias circuits comprise the circuit that uses resistance to be connected in series with electric capacity.
Compared with prior art, the present invention produces one group of sets of signals to be encoded in the earphone insertion.Then, the signal in this sets of signals to be encoded is imported in the signal interpretation table of comparisons in regular turn contrasted the form that can pick out the earphone that inserts.
[description of drawings]
Fig. 1 is the block flow diagram according to a preferred embodiment of the present invention.
Fig. 2 is the contrast process block diagram according to the sets of signals to be encoded of a preferred embodiment of the present invention.
Fig. 3 is the block schematic diagram according to the circuit arrangement of a preferred embodiment of the present invention.
[embodiment]
Please refer to Fig. 1, it illustrates the process block diagram according to a preferred embodiment of the present invention.At first, what preset insertion earpiece audio socket is a certain earphone, produces one group of sets of signals to be encoded (as step S103) because earphone inserts.Then, the signal in this sets of signals to be encoded is imported the work (as step S106) that contrasts in the signal interpretation table of comparisons in regular turn, can pick out the form of the earphone that inserts behind the contrast end-of-job, and start the function (as step S109) of this earphone.
Then, please refer to Fig. 2, it illustrates the contrast process block diagram according to the sets of signals to be encoded of a preferred embodiment of the present invention.At first, contrast earphone interrupt request signal (as step S203), interrupt request is to be proposed to central processing system by peripheral hardware unit, and the numbering of interrupt request is to be used for the interrupt request circuit numbering that specified device uses.The numbering of interrupt request can cause system or device generation problem when setting mistake.When this signal is in low-potential state, represent to there is no this moment in the earphone insertion earpiece audio socket (as step S206); When this signal was in high potential state, then representing had earphone to insert in the earpiece audio socket (as step S209) this moment.Then, contrast postal service interrupt request signal (as step S212), wherein, postal service is meant services such as postal service, telegram and phone, and this postal service interrupt request signal is obtained after relatively by the signal that the microphone end of earpiece audio socket sends.When this signal was in low-potential state, then representing the earphone that is inserted was trifocal earphone (as step S215); When this signal was in high potential state, then representing the earphone that is inserted was four end formula earphones (as step S218), and started the ear-phone function (as step S221) of L channel-R channel-microphone-ground connection form.
If the non-four-part form earphone of earphone that is inserted, then need continue microphone/acknowledge(ment) signal is contrasted (as step S224), when this signal is in low-potential state, then can judge the form (as step S227) that this trifocal earphone is L channel-R channel-ground connection, microphone bias voltage (as step S241) is not provided this moment, microphone interruption/earphone signal presents high potential state (as step S244), and the ear-phone function (as step S247) of meeting deactivation L channel-R channel-ground connection.If this signal is in high potential state, then can judge the form (as step S230) that this trifocal earphone is microphone-R channel-ground connection, can provide a microphone bias voltage (as step S233) this moment, microphone interruption/earphone signal presents low-potential state (as step S236), and starts the ear-phone function (as step S239) of microphone-R channel-ground connection.R channel and the L channel in above-mentioned preferred embodiment, mentioned, in practical application not with present embodiment lifted putting in order of showing limit.
At last, please refer to the block schematic diagram of Fig. 3 illustrate according to the circuit arrangement of a preferred embodiment of the present invention.This circuit arrangement comprises an earphone socket 318, one first comparator 327, one second comparator 330, contact element 315, an audio coding decoder 333 at least.
Earphone socket 318 in this device is earth terminal 303, microphone end 306, the first sound channel end 309 and the second sound channel end 312 in regular turn by inserting mouth.Input of first comparator 327 and the microphone end of earphone socket 318 306 electrically connect, and are used for exporting a comparative result: on the other hand after comparison microphone end 306 and one first preset potential.330 of second comparators are to have an input to be electrically connected to the second sound channel end 312, are used for exporting a comparative result after the comparison second sound channel end 312 and one second preset potential.In addition, when not having earphone to insert earphone socket 318, contact element 315 meetings and the first sound channel end 309 are electrically connected, but when earphone inserted earphone socket 318,315 of contact elements were to separate with the first sound channel end 309.
Audio coding decoder 333 in this device, be electrically connected to first and second comparator 327,330 output, contact element 315 and first and second sound channel end 312, judge the form whether the earphone insertion and the earphone that inserts are arranged in the earphone socket 318 according to the output result of first and second comparator 327,330 and the current potential of contact element 315.Previously mentioned first and second preset potential is respectively to be provided by 321,324 of first and second bias circuits.First bias circuit 321 is electrically connected between the earth terminal 303 of first comparator 327 and earphone socket 318; Second bias circuit 324 is electrically connected between the second sound channel end 312 of second comparator 330 and earphone socket 318.In a preferred embodiment of the present invention, first and second bias circuit 321,324 is to use the circuit of resistance and capacitance series.
Claims (10)
1. the method for an identifying earphone forms is applicable to that it is characterized in that: this method comprises in the earpiece audio socket of tool one earth terminal, a microphone end, one first sound channel end, one second sound channel end and a contact element:
Insert an earphone so that this earpiece audio socket produces corresponding one sets of signals to be encoded;
Signal in this sets of signals to be encoded is imported a signal interpretation table of comparisons in regular turn; And
Result according to this signal interpretation table of comparisons picks out an earphone forms.
2. the method for identifying earphone forms as claimed in claim 1, it is characterized in that: this sets of signals to be encoded comprises:
Whether one earphone interrupt request signal is sent by this contact element, have this earphone to insert in order to represent this earpiece audio socket;
One postal service interrupt request signal, whether the signal that is sent by this microphone end obtains after relatively, be a trifocal earphone in order to represent this earphone;
One detecting microphone/received signal, the signal that is sent by this second sound channel end be through relatively back acquisition, in order to representing this earphone forms of this trifocal earphone, and judges whether a microphone bias voltage need be provided; And
Whether one microphone interruption/earphone signal is provided according to this microphone bias voltage, starts the function of this trifocal earphone.
3. the method for identifying earphone forms as claimed in claim 1, it is characterized in that: the discrimination method of this signal interpretation table of comparisons comprises:
When this contact element separated with this first sound channel end, then this earphone interrupt request signal was an electronegative potential, judged that this earpiece audio socket earless machine transplanting of rice goes into; And
When the electrical coupling knot of this contact element and this first sound channel end, then this earphone interrupt request signal is a high potential, judges that this earpiece audio socket has earphone to insert.
4. the method for identifying earphone forms as claimed in claim 3 is characterized in that: when this earphone interrupt request signal is high potential, more comprise:
When this postal service interrupt request signal is electronegative potential, judge that then this earphone is this trifocal earphone; And
When this postal service interrupt request signal is high potential, judge that then this earphone is one or four end formula earphones.
5. the method for identifying earphone forms as claimed in claim 4 is characterized in that: when this postal service interrupt request signal is electronegative potential, more comprise:
When this detecting microphone/received signal is electronegative potential, judge that then this earphone forms is the form of sound channel-sound channel-ground connection, does not need to provide this microphone bias voltage; And
When this detecting microphone/received signal is high potential, judge that then this earphone forms is the form of microphone-sound channel-ground connection, need provide this microphone bias voltage.
6. the method for identifying earphone forms as claimed in claim 5, it is characterized in that: the method for described identifying earphone forms more comprises:
When detecting this microphone bias voltage of nothing, then setting this microphone interruption/earphone signal is high potential, starts the ear-phone function of sound channel-sound channel-ground connection form; And
When detecting this microphone bias voltage, then setting this microphone interruption/earphone signal is electronegative potential, starts the ear-phone function of microphone-sound channel-ground connection form.
7. the method for identifying earphone forms as claimed in claim 4 is characterized in that: when this postal service interrupt request signal is high potential, start the ear-phone function of sound channel-sound channel-microphone-ground connection form.
8. the device of an identifying earphone forms comprises an earphone socket, is begun by the insertion mouth of this earphone socket, comprises an earth terminal, a microphone end, one first sound channel end and one second sound channel end in regular turn; It is characterized in that: the device of described identifying earphone forms also comprises:
One first comparator, an input of this first comparator is electrically coupled to this microphone end, in order to relatively this microphone end and one first preset potential, and the output comparative result:
One second comparator, an input of this second comparator are electrically coupled to this second sound channel end, in order to relatively this second sound channel end and one second preset potential, and the output comparative result;
One contact element: when not having earphone to insert this earphone socket and this first sound channel end electric property coupling, and when having earphone to insert this earphone socket, separate with this first sound channel end; And
One audio coding decoder, be electrically coupled to output, this contact element and this first and second sound channel end of this first and second comparator, and judge whether that according to the output of this first and second comparator and the current potential of this contact element earphone exists and the form of earphone.
9. the device of identifying earphone forms as claimed in claim 8, it is characterized in that: the device of described identifying earphone forms more comprises:
One first bias circuit, this first bias circuit is electrically coupled between this first comparator and this earth terminal, and this first preset potential is provided; And
One second bias circuit, this second bias circuit are electrically coupled between this second comparator and this second sound channel end, and this second preset potential is provided.
10. the device of identifying earphone forms as claimed in claim 9 is characterized in that: the one the second bias circuits comprise the circuit that uses resistance to be connected in series with electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034287 CN1856183A (en) | 2005-04-26 | 2005-04-26 | Method and apparatus for identifying earphone forms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034287 CN1856183A (en) | 2005-04-26 | 2005-04-26 | Method and apparatus for identifying earphone forms |
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| CN1856183A true CN1856183A (en) | 2006-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510034287 Pending CN1856183A (en) | 2005-04-26 | 2005-04-26 | Method and apparatus for identifying earphone forms |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056051A (en) * | 2009-10-29 | 2011-05-11 | 宏达国际电子股份有限公司 | Electronic device, electronic system, and method for processing signals from an audio accessory thereof |
| CN103051989A (en) * | 2011-10-12 | 2013-04-17 | 宏达国际电子股份有限公司 | Audio electronic device and audio plug recognition and operation method |
| CN104640049A (en) * | 2013-11-08 | 2015-05-20 | 杭州海康威视数字技术股份有限公司 | Method and system for judging whether earphones have voice inputting function or not |
-
2005
- 2005-04-26 CN CN 200510034287 patent/CN1856183A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056051A (en) * | 2009-10-29 | 2011-05-11 | 宏达国际电子股份有限公司 | Electronic device, electronic system, and method for processing signals from an audio accessory thereof |
| US8620004B2 (en) | 2009-10-29 | 2013-12-31 | Htc Corporation | Electronic device, electronic system, and method for processing signals from an audio accessory thereof |
| CN103051989A (en) * | 2011-10-12 | 2013-04-17 | 宏达国际电子股份有限公司 | Audio electronic device and audio plug recognition and operation method |
| CN103051989B (en) * | 2011-10-12 | 2016-05-18 | 宏达国际电子股份有限公司 | Audio electronics device and audio jack identification and method of operating |
| CN104640049A (en) * | 2013-11-08 | 2015-05-20 | 杭州海康威视数字技术股份有限公司 | Method and system for judging whether earphones have voice inputting function or not |
| CN104640049B (en) * | 2013-11-08 | 2017-12-22 | 杭州海康威视数字技术股份有限公司 | A kind of method and system for distinguishing the earphone for whether supporting speech voice input function |
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