CN202721651U - Audio interface matching recognition device of mobile terminal and electronic signature tool - Google Patents
Audio interface matching recognition device of mobile terminal and electronic signature tool Download PDFInfo
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- CN202721651U CN202721651U CN 201220280150 CN201220280150U CN202721651U CN 202721651 U CN202721651 U CN 202721651U CN 201220280150 CN201220280150 CN 201220280150 CN 201220280150 U CN201220280150 U CN 201220280150U CN 202721651 U CN202721651 U CN 202721651U
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Abstract
The utility model provides an audio interface matching recognition device of a mobile terminal and an electronic signature tool. The device comprises an audio interface which is provided with a first pin, a second pin and a third pin. The first pin and the second pin are respectively one and the other of a microphone pin and a ground pin, and the third pin is an audio output pin. The third pin is connected with the first pin through a first unidirectional conduction module. The third pin is connected with the second pin through a second unidirectional conduction module. A current direction of the first unidirectional conduction module is a direction of flowing to the first pin. A current direction of the second unidirectional conduction module is a direction of flowing to the second pin. When the first unidirectional conduction module is conducted, the third pin and the first pin form a loop, and an impedance value of the loop is matched with identification resistance of a mobile terminal. When the second unidirectional conduction module is conducted, the third pin and the second pin form a loop, and an impedance value of the loop is matched with the identification resistance. The impedance of loops of the audio output pin and the ground pin of the audio interface can be matched with the identification resistance of the mobile terminal.
Description
Technical field
The utility model relates to electronic technology field, particularly a kind of audio interface of portable terminal coupling recognition device and electric signing tools.
Background technology
Existing audio signal transmitting apparatus (for example, portable terminal) audio interface (for example earphone jack) and the audio signal receiving equipment (for example, earphone) audio interface generally adopts monophony or multichannel to carry out the transmission of audio signal, generally make three-prong as monaural audio frequency output pin, make generally that three-prong and the 4th pin are the audio frequency output pin of multichannel, i.e. L channel pin and R channel pin.But the first pin of different audio interface is different with the effect of the second pin, and having the first pin is Mike's pin MIC, the second pin ground pin GND, and the first pin ground pin GND, the audio interface that the second pin Mike pin MIC is two types.
Owing to there is above-mentioned dissimilar audio interface, when the audio signal transmitting apparatus (for example, portable terminal) audio interface and audio signal receiving equipment are (for example, earphone, headset, electric signing tools etc.) audio interface when not mating, not only can't communicate by Mike's pin of audio interface between audio signal transmitting apparatus and the audio signal receiving equipment, also can't normally use the audio frequency output pin (L channel pin and R channel pin) of audio interface to carry out the transmission of audio signal.
Along with the continuous progress of mobile interconnection technique, the function of portable terminal from strength to strength, and is therefore more and more urgent for the demand of mobile payment.Yet because the small volume of portable terminal, external interface is considerably less, therefore how to realize connecting into for problem demanding prompt solution of electric signing tools and portable terminal.Particularly since portable terminal have dissimilar audio interface, this also for portable terminal with smooth connection of electric signing tools caused obstacle.Particularly, because the audio interface type disunity of portable terminal if insert after the audio interface of portable terminal, may be identified, communicate by letter thereby cause to set up between electric signing tools and the audio interface.
The utility model content
The utility model is intended to one of solve the problems of the technologies described above at least.
For this reason, a purpose of the present utility model is to provide a kind of audio interface of portable terminal to mate the device of identification.
Another purpose of the present utility model is to provide a kind of electric signing tools.
To achieve these goals, the embodiment of the utility model first aspect provides a kind of device of audio interface coupling identification of portable terminal, this device comprises: audio interface, described audio interface comprises the first pin, the second pin and three-prong, described three-prong is monaural audio frequency output pin or is one in the audio frequency output pin of multichannel, described the first pin is in Mike's pin and the ground pin, and described the second pin is another in Mike's pin and the ground pin; Described three-prong connects described the first pin by the first circuit, and described the first circuit comprises the first one-way conduction module; Described three-prong also connects described the second pin by second circuit, and described second circuit comprises the second one-way conduction module; The sense of current of described the first one-way conduction module is for flowing to described the first pin, and the sense of current of described the second one-way conduction module is for flowing to described the second pin; When described the first one-way conduction module conducting, described three-prong and described the first pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary; When described the second one-way conduction module conducting, described three-prong and described the second pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary.
In addition, described three-prong also connects respectively described the first circuit and second circuit by the first match circuit; When described the first one-way conduction module conducting, described three-prong and described the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary; When described the second one-way conduction module conducting, described three-prong and described the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
In addition, described audio interface also comprises the 4th pin, another in the audio frequency output pin that described the 4th pin is multichannel; Described the 4th pin connects described the first pin by tertiary circuit, and described tertiary circuit comprises the 3rd one-way conduction module; Described the 4th pin also connects described the second pin by the 4th circuit, and described the 4th circuit comprises the 4th one-way conduction module; The sense of current of described the 3rd one-way conduction module is for flowing to described the first pin, and the sense of current of described the 4th one-way conduction module is for flowing to described the second pin; When described the 3rd one-way conduction module conducting, described the 4th pin and described the first pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary; When described the 4th one-way conduction module conducting, described the 4th pin and described the second pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary.
In addition, described audio interface also comprises the 4th pin, another in the audio frequency output pin that described the 4th pin is multichannel; Described the 4th pin connects respectively described the first circuit and second circuit by the second match circuit; When described the first one-way conduction module conducting, described the 4th pin and described three-prong form the loop with described the first pin simultaneously, and the identification resistance of the resistance value in every described loop and portable terminal is complementary; When described the second one-way conduction module conducting, described the 4th pin and described three-prong form the loop with described the second pin simultaneously, and the identification resistance of the resistance value in every described loop and portable terminal is complementary.
In addition, described the first match circuit and described the second match circuit comprise: the resistance of resistance, loud speaker, transformer, parallel connection and comparator or resistance and operational amplifier in parallel.
In addition, described the first one-way conduction module, the second one-way conduction module, the 3rd one-way conduction module and described the 4th one-way conduction module comprise: diode, triode or metal-oxide-semiconductor.
In addition, described the first circuit also comprises the first matching module that connects the first one-way conduction module; Described second circuit also comprises the second matching module that connects described the second one-way conduction module; Described tertiary circuit also comprises the 3rd matching module that connects described the 3rd one-way conduction module; Described the 4th circuit also comprises the 4th matching module that connects described the 4th one-way conduction module.
In addition, described the first matching module, described the second matching module, described the 3rd matching module comprise with described the 4th matching module: resistance, loud speaker, transformer, resistance and comparator or resistance and operational amplifier in parallel in parallel.
In addition, link to each other by the two-way admittance element between the first pin of described audio interface and the second pin.
The embodiment of the utility model second aspect provides a kind of electric signing tools, comprises the device of the audio interface coupling identification of above-mentioned portable terminal.
Audio interface coupling recognition device and electric signing tools by portable terminal of the present utility model, can make the audio frequency output pin (the L channel pin of monophony, multichannel and/or R channel pin) of audio interface be complementary with the impedance in the loop of ground pin and the identification resistance of portable terminal, thereby guarantee that portable terminal can be with audio signal transmission to the audio signal receiving equipment.
Simultaneously, by the technical solution of the utility model, guarantee electric signing tools correct be moved terminal recognition, thereby guaranteed that portable terminal can be connected smoothly with electric signing tools.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the first schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 2 is the second schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 3 is the 3rd schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 4 is the 4th schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 5 is the 5th schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 6 is the 6th schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 7 is the 7th schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 8 is the 8th schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Fig. 9 is the 9th schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 1 of identification;
Figure 10 is the schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 2 of identification;
Figure 11 is the schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 3 of identification; And
Figure 12 is the schematic diagram that the audio interface of the utility model portable terminal is mated the device embodiment 4 of identification.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the utility model and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " etc. only are used for describing purpose, and can not be interpreted as indication or hint relative importance or quantity or position, further, " the first pin ", " the second pin " only are that pin is distinguished, and are not used in the position that limits pin.
In description of the present utility model, need to prove that unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Below in conjunction with accompanying drawing device according to the audio interface coupling identification of the portable terminal of the utility model embodiment is described at first.
The audio interface of portable terminal comprises the first pin to the four pins in the device of the audio interface coupling identification of the portable terminal of the utility model embodiment.In concrete example of the present utility model, the third and fourth pin to audio interface is defined as follows: the three-prong of audio interface is in the audio frequency output pin, be in L channel output pin and the R channel output pin, the 4th pin is another in the audio frequency output pin, be in L channel output pin and the R channel output pin another, the first pin is among Mike's pin MIC and the ground pin GND, and the second pin is another among Mike's pin MIC and the ground pin GND.
Embodiment 1
Fig. 1 has shown the structural representation of device embodiment 1 of the audio interface coupling identification of the utility model portable terminal, and referring to Fig. 1, the device of the audio interface of portable terminal coupling identification comprises, audio interface, wherein:
The three-prong of audio interface connects the first pin by the first circuit; Three-prong also connects the second pin by circuit, and wherein, three-prong is monaural audio frequency output pin or is one in the audio frequency output pin of multichannel.
Wherein, the first circuit comprises the first one-way conduction module, and the second one-way circuit comprises the second one-way conduction module, and the sense of current of the first one-way conduction module is for flowing to the first pin, and the sense of current of the second one-way conduction module is for flowing to the second pin; When the first one-way conduction module conducting, three-prong and the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary; When the second one-way conduction module conducting, three-prong and the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
In embodiment of the present utility model, the identification resistance of portable terminal is generally 8/16/32 ohm.
Because the audio frequency output pin (the L channel pin in monophony or the multichannel and/or R channel pin) of audio interface is complementary with the impedance loop of ground pin and the identification resistance of portable terminal, thereby guarantees that portable terminal can be with audio signal transmission to the audio signal receiving equipment.
This shows, audio signal receiving equipment (such as earphone, headset, electric signing tools etc.) can be connected with the portable terminal of the audio interface that is provided with any type, the detection that success is undertaken by portable terminal, and the normal received audio signal of audio frequency output pin (the L channel pin in monophony or the multichannel and/or R channel pin) by audio interface.
Wherein, the first one-way conduction module and the second one-way conduction module include but not limited to: diode, triode or metal-oxide-semiconductor.For example, when the first one-way conduction module was diode, the forward end of diode linked to each other with three-prong and negative end and the first pin.
Certainly, the first circuit can also comprise the first matching module that connects the first one-way conduction module, and second circuit can also comprise the second matching module that connects the second one-way conduction module.
The first matching module and the second matching module can be realized in the following way: the resistance of resistance, loud speaker, transformer, parallel connection and comparator or resistance and operational amplifier in parallel.
Referring to Fig. 2, the first circuit comprises the first matching module and the one-way conduction module that connects successively, and the first matching module adopts resistance, and the one-way conduction module adopts diode;
Referring to Fig. 3, matching module adopts loud speaker, and the one-way conduction module adopts diode;
Referring to Fig. 4, matching module adopts transformer, and the one-way conduction module adopts diode;
Referring to Fig. 5, matching module adopts resistance and comparator in parallel, and the one-way conduction module adopts diode, and wherein, comparator can also replace with operational amplifier;
Referring to Fig. 6, matching module adopts any in the circuit of Fig. 2-shown in Figure 5, and the one-way conduction module adopts the positive-negative-positive triode;
Referring to Fig. 7, matching module adopts any in the circuit of Fig. 2-shown in Figure 5, and the one-way conduction module adopts NPN type triode;
Referring to Fig. 8, matching module adopts any in the circuit of Fig. 2-shown in Figure 5, and the one-way conduction module adopts N channel junction metal-oxide-semiconductor;
Referring to Fig. 9, match circuit adopts any in the circuit of Fig. 2-shown in Figure 5, and the one-way conduction module adopts P channel junction metal-oxide-semiconductor.
Certainly, the matching module and the one-way conduction module that connect successively in the first circuit can transpositions.
Certainly, second circuit can adopt identical circuit simultaneously with the first circuit, also can adopt different circuit, and for example, the first circuit adopts resistance and diode to realize the one-way conduction function, and second circuit adopts loud speaker and triode to realize the one-way conduction function.
Embodiment 2
Figure 10 has shown the schematic diagram of device embodiment 2 of the audio interface coupling identification of the utility model portable terminal, referring to Figure 10, the 4th pin of the device sound intermediate frequency interface of the audio interface of present embodiment portable terminal coupling identification connects described the first pin by tertiary circuit; The 4th pin also connects the second pin by the 4th circuit block, and wherein, the 4th pin is another in the audio frequency output pin of multichannel.
Wherein, tertiary circuit comprises the 3rd one-way conduction module, and the 4th one-way circuit comprises the 4th one-way conduction module, and the sense of current of the 3rd one-way conduction module is for flowing to the first pin, and the sense of current of the 4th one-way conduction module is for flowing to the second pin; When the 3rd one-way conduction module conducting, the 4th pin and the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary; When the 4th one-way conduction module conducting, the 4th pin and the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
Because portable terminal can only transmit by a circuit to the audio signal that the audio signal receiving equipment sends, therefore, use three-prong or the 4th pin that can select transmit.
Wherein, the 3rd one-way conduction module and the 4th one-way conduction module include but not limited to: diode, triode or metal-oxide-semiconductor.For example: when the 3rd one-way conduction module was diode, the forward end of diode linked to each other with the 4th pin and negative end and the second pin.
Certainly, tertiary circuit can also comprise the 3rd matching module that connects the 3rd one-way conduction module, and the 4th circuit can also comprise the 4th matching module that connects the 4th one-way conduction module.
Certainly, the tertiary circuit of present embodiment can be identical with the structure that the first circuit of embodiment 1 adopts with the 4th circuit, and tertiary circuit also can adopt identical structure or different structures to realize the one-way conduction function with the 4th circuit.
Embodiment 3
Figure 11 has shown the schematic diagram of device embodiment 3 of the audio interface coupling identification of the utility model portable terminal, referring to Figure 11, the difference of present embodiment and embodiment 1 is that the device of the audio interface coupling identification of the portable terminal of present embodiment also comprises the first match circuit.
The three-prong of audio interface connects respectively the first circuit and second circuit by the first match circuit, and wherein, three-prong is monaural audio frequency output pin or is one in the audio frequency output pin of multichannel;
When the first one-way conduction module conducting, three-prong and the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary; When the second one-way conduction module conducting, three-prong and the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
At this moment, can can't reach in the situation of identification resistance of portable terminal at the first circuit or second circuit by match circuit, further guarantee match circuit be combined with the first circuit or second circuit can with the identification resistors match of portable terminal.
Wherein, the first match circuit also can be realized in the following way: the resistance of resistance, loud speaker, transformer, parallel connection and comparator or resistance and operational amplifier in parallel.
Embodiment 4
Figure 12 has shown the schematic diagram of device embodiment 4 of the audio interface coupling identification of the utility model portable terminal, referring to Figure 12, present embodiment is on the basis of embodiment 3, make the 4th pin of audio interface connect respectively the first circuit and second circuit by second circuit block, wherein, the 4th pin is another in the audio frequency output pin of multichannel.
At this moment, can can't reach in the situation of identification resistance at the first circuit or second circuit by match circuit, further guarantee match circuit be combined with the first circuit or second circuit can with the identification resistors match of portable terminal.
In the present embodiment, the second match circuit also can be realized in the following way: the resistance of resistance, loud speaker, transformer, parallel connection and comparator or resistance and operational amplifier in parallel.
Certainly, the first match circuit can adopt different circuit to realize with the second match circuit, and preferred, resistance value equates.When having guaranteed to adopt three-prong and the common transmission of audio signal of the 4th pin, can guarantee that all the audio signal receiving equipments such as the portable terminal pair earphone that links to each other with its audio interface, headset, electric signing tools identify.
Further alternatively, can pass through the two-way admittance element between the first pin of the present utility model and the second pin, for example resistance R links to each other, and the Standard resistance range of above-mentioned two-way admittance element can be 7.7K Ω ~ 15K Ω, generally adopts 10K Ω, 12K Ω or 15K Ω.
If link to each other by two-way admittance element (for example, resistance) between the first pin and the second pin, audio signal receiving equipment of the present utility model can be successfully by the detection and Identification of portable terminal for Mike's pin.
Certainly, in above-described embodiment, audio interface can be arbitrary money four-part form headset plug or jack, and for example diameter is headset plug or the earphone jack of 3.5mm or 2.5mm.
In above-described embodiment, the diode that the one-way conduction module adopts can be germanium tube.
In above-described embodiment, the one-way conduction module can be integrated in the one chip, for example BAT54 series.
In above-described embodiment, if audio interface is headset plug, then can directly audio signal receiving equipment of the present utility model be inserted in the earphone jack of audio signal transmitting apparatus (for example, smart mobile phone); If audio interface of the present utility model is earphone jack, then can adopt two ends all is the earphone jack of the patchcord connection smart mobile phone of headset plug.
In above-described embodiment, the audio signal receiving equipment of the device of the audio interface coupling identification of employing portable terminal can be earphone, headset, loud speaker, electric signing tools etc.
Described portable terminal can be mobile phone.
Based on above-described embodiment as seen, when the audio signal receiving equipment of the device of the audio interface coupling identification of use the utility model portable terminal links to each other with portable terminal, no matter the first pin and second pin of the audio interface of portable terminal are any types, the audio signal receiving equipment can be successfully by the portable terminal transmitting apparatus for the three-prong of monaural audio frequency output pin and multichannel and/or the detection and Identification that the 4th pin carries out, and normally use the audio frequency output pin to carry out reception and the processing of audio signal.
Embodiment 5
The utility model also provides a kind of method of audio interface coupling identification of portable terminal, and the method may further comprise the steps:
Three-prong connects the first pin by the first circuit, and the first circuit comprises the first one-way conduction module;
Three-prong also connects the second pin by second circuit, and second circuit comprises the second one-way conduction module;
Wherein, three-prong is monaural audio frequency output pin or is one in the audio frequency output pin of multichannel.
The sense of current of the first one-way conduction module is for flowing to the first pin, and the sense of current of the second one-way conduction module is for flowing to the second pin;
When the first one-way conduction module conducting, three-prong and the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary;
When the second one-way conduction module conducting, three-prong and the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
Further, on the said method basis, also comprise:
The 4th pin connects the first pin by tertiary circuit, and tertiary circuit comprises the 3rd one-way conduction module;
The 4th pin also connects the second pin by the 4th circuit, and the 4th circuit comprises the 4th one-way conduction module;
Wherein, the 4th pin is another in the audio frequency output pin of multichannel.
The sense of current of the 3rd one-way conduction module is for flowing to the first pin, and the sense of current of the 4th one-way conduction module is for flowing to the second pin;
When the 3rd one-way conduction module conducting, the 4th pin and the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary;
When the 4th one-way conduction module conducting, the 4th pin and the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
Certainly, in the present embodiment, three-prong also connects respectively the first circuit and second circuit by the first match circuit; When the first one-way conduction module conducting, three-prong and the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary; When the second one-way conduction module conducting, three-prong and the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
Certainly, in the present embodiment, the 4th pin also connects respectively the first circuit and second circuit by the second match circuit; When the first one-way conduction module conducting, the 4th pin and three-prong form the loop with the first pin simultaneously, and the identification resistance of the resistance value in every loop and portable terminal is complementary; When the second one-way conduction module conducting, the 4th pin and three-prong form the loop with the second pin simultaneously, and the identification resistance of the resistance value in every loop and portable terminal is complementary.
In addition, the first match circuit and the second match circuit comprise: the resistance of resistance, loud speaker, transformer, parallel connection and comparator or resistance and operational amplifier in parallel.
In addition, the first one-way conduction module, the second one-way conduction module, the 3rd one-way conduction module and the 4th one-way conduction module comprise: diode, triode or metal-oxide-semiconductor.
In addition, the first circuit also comprises the first matching module that connects the first one-way conduction module; Second circuit also comprises the second matching module that connects the second one-way conduction module; Tertiary circuit also comprises the 3rd matching module that connects the 3rd one-way conduction module; The 4th circuit also comprises the 4th matching module that connects the 4th one-way conduction module.
In addition, the first matching module, the second matching module, the 3rd matching module comprise with the 4th matching module: resistance, loud speaker, transformer, resistance and comparator or resistance and operational amplifier in parallel in parallel.
In addition, link to each other by the two-way admittance element between the first pin of audio interface and the second pin.
Wherein, the first circuit can adopt identical structure or different structures with second circuit, and tertiary circuit can adopt identical structure or different structures with the 4th circuit.
The first match circuit can adopt identical structure or different structures with the second match circuit.
Embodiment 6
Further enforcement of the present utility model has proposed a kind of electric signing tools, comprises the device of the audio interface coupling identification of the portable terminal in above-described embodiment.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment in the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is by claim and be equal to and limit.
Claims (11)
1. the audio interface of a portable terminal is mated the device of identification, it is characterized in that, comprise: audio interface, described audio interface comprises the first pin, the second pin and three-prong, described the first pin is in Mike's pin and the ground pin, described the second pin is another in Mike's pin and the ground pin, and described three-prong is monaural audio frequency output pin or is one in the audio frequency output pin of multichannel;
Described three-prong connects described the first pin by the first circuit, and described the first circuit comprises the first one-way conduction module;
Described three-prong also connects described the second pin by second circuit, and described second circuit comprises the second one-way conduction module;
The sense of current of described the first one-way conduction module is for flowing to described the first pin, and the sense of current of described the second one-way conduction module is for flowing to described the second pin;
When described the first one-way conduction module conducting, described three-prong and described the first pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary;
When described the second one-way conduction module conducting, described three-prong and described the second pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary.
2. device according to claim 1 is characterized in that, described three-prong also connects respectively described the first circuit and second circuit by the first match circuit; When described the first one-way conduction module conducting, described three-prong and described the first pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary; When described the second one-way conduction module conducting, described three-prong and described the second pin form the loop, and the identification resistance of the resistance value in loop and portable terminal is complementary.
3. device according to claim 1 is characterized in that, described audio interface also comprises the 4th pin, another in the audio frequency output pin that described the 4th pin is multichannel;
Described the 4th pin connects described the first pin by tertiary circuit, and described tertiary circuit comprises the 3rd one-way conduction module;
Described the 4th pin also connects described the second pin by the 4th circuit, and described the 4th circuit comprises the 4th one-way conduction module;
The sense of current of described the 3rd one-way conduction module is for flowing to described the first pin, and the sense of current of described the 4th one-way conduction module is for flowing to described the second pin;
When described the 3rd one-way conduction module conducting, described the 4th pin and described the first pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary;
When described the 4th one-way conduction module conducting, described the 4th pin and described the second pin form the loop, and the identification resistance of the resistance value in described loop and portable terminal is complementary.
4. device according to claim 2 is characterized in that, described audio interface also comprises the 4th pin, another in the audio frequency output pin that described the 4th pin is multichannel;
Described the 4th pin connects respectively described the first circuit and second circuit by the second match circuit;
When described the first one-way conduction module conducting, described the 4th pin and described three-prong form the loop with described the first pin simultaneously, and the identification resistance of the resistance value in every described loop and portable terminal is complementary;
When described the second one-way conduction module conducting, described the 4th pin and described three-prong form the loop with described the second pin simultaneously, and the identification resistance of the resistance value in every described loop and portable terminal is complementary.
5. such as claim 2 or 4 described devices, it is characterized in that described the first match circuit and described the second match circuit comprise: the resistance of resistance, loud speaker, transformer, parallel connection and comparator or resistance and operational amplifier in parallel.
6. according to claim 1 or 3 described devices, it is characterized in that described the first one-way conduction module, the second one-way conduction module, the 3rd one-way conduction module and described the 4th one-way conduction module comprise: diode, triode or metal-oxide-semiconductor.
7. described device is characterized in that according to claim 1-4, and described the first circuit also comprises the first matching module that connects the first one-way conduction module; Described second circuit also comprises the second matching module that connects described the second one-way conduction module; Described tertiary circuit also comprises the 3rd matching module that connects described the 3rd one-way conduction module; Described the 4th circuit also comprises the 4th matching module that connects described the 4th one-way conduction module.
8. device according to claim 7, it is characterized in that described the first matching module, described the second matching module, described the 3rd matching module comprise with described the 4th matching module: resistance, loud speaker, transformer, resistance and comparator or resistance and operational amplifier in parallel in parallel.
9. each described device is characterized in that according to claim 1-8, links to each other by the two-way admittance element between the first pin of described audio interface and the second pin.
10. each described device is characterized in that according to claim 1-9, and described portable terminal is mobile phone.
11. an electric signing tools is characterized in that, comprises the device such as the audio interface coupling identification of each described portable terminal of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280150 CN202721651U (en) | 2012-06-13 | 2012-06-13 | Audio interface matching recognition device of mobile terminal and electronic signature tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280150 CN202721651U (en) | 2012-06-13 | 2012-06-13 | Audio interface matching recognition device of mobile terminal and electronic signature tool |
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| Publication Number | Publication Date |
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| CN202721651U true CN202721651U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220280150 Withdrawn - After Issue CN202721651U (en) | 2012-06-13 | 2012-06-13 | Audio interface matching recognition device of mobile terminal and electronic signature tool |
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| CN (1) | CN202721651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739183A (en) * | 2012-06-13 | 2012-10-17 | 天地融科技股份有限公司 | Audio interface matching identification method and device for mobile terminal, and electronic signature tool |
| WO2013107271A1 (en) * | 2012-01-18 | 2013-07-25 | 天地融科技股份有限公司 | Audio interface adapter device and audio signal receiving apparatus |
-
2012
- 2012-06-13 CN CN 201220280150 patent/CN202721651U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013107271A1 (en) * | 2012-01-18 | 2013-07-25 | 天地融科技股份有限公司 | Audio interface adapter device and audio signal receiving apparatus |
| US9179216B2 (en) | 2012-01-18 | 2015-11-03 | Tendyron Corporation | Audio interface adapter device and audio signal receiving apparatus |
| CN102739183A (en) * | 2012-06-13 | 2012-10-17 | 天地融科技股份有限公司 | Audio interface matching identification method and device for mobile terminal, and electronic signature tool |
| WO2013185600A1 (en) * | 2012-06-13 | 2013-12-19 | 天地融科技股份有限公司 | Method, device, and electronic signature tool for use in matching with audio interface of mobile terminal |
| US9532137B2 (en) | 2012-06-13 | 2016-12-27 | Tendyron Corporation | Method and device for matching with audio interface of mobile terminal, and electronic signature token |
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Address after: 100083, room 1810, block B, 38 clear road, Haidian District, Beijing Patentee after: Tendyron Technology Co., Ltd. Address before: 100083, room 1810, block B, golden building, No. 17, Qinghua East Road, Beijing, Haidian District Patentee before: Tendyron Technology Co., Ltd. |
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