CN103517181A - Electronic device and headset - Google Patents
Electronic device and headset Download PDFInfo
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- CN103517181A CN103517181A CN201210198016.9A CN201210198016A CN103517181A CN 103517181 A CN103517181 A CN 103517181A CN 201210198016 A CN201210198016 A CN 201210198016A CN 103517181 A CN103517181 A CN 103517181A
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Abstract
An electronic device comprises an electronic device body and a headset. The headset matches the electronic device body. The electronic device body comprises a headset detection circuit which can detects and identifies the headset. A diode and a resistor which are connected in series are connected between anode and cathode of a microphone of the headset. The electronic device body detects and identifies through the diode whether a headset connected to the electronic device body is the headset. By the adoption of the electronic device, it is guaranteed that a headset that a user uses is an original certified headset, and using effect of a user is ensured.
Description
Technical field
The present invention relates to electronic installation, relate in particular to whether a kind of headset that can detect connection is the electronic installation of original-pack headset and the original-pack headset mating with this electronic installation.
Background technology
Current portable electron device is all accompanied with original-pack headset such as mobile phone, music player etc., so that user uses when inconvenient hand-held device when selling.When user loses or damages after headset, can buy original-pack headset, the non-original-pack headset that also can buy on the alternative ，Dan of non-original-pack headset market is diversified in specifications, and quality is uneven, may affect user and use, and what quality was bad even can damage the interface of electronic installation.So manufacturer suggestion user buys original-pack headset, and at present due to the price advantage of non-original-pack headset, and non-original-pack headset can be used in this electronic installation, therefore, cannot effectively prevent the use of non-original-pack headset.
Summary of the invention
In view of this, be necessary to provide a kind of electronic installation and the original-pack headset that can detect original-pack headset.
, comprising:
One electronic device body, comprising:
One processing unit, comprise an audio codec, this audio codec comprises the anodal pin of microphone, microphone negative pole pin, the anodal pin of earphone, earphone negative pole pin, this processing unit also comprises universal input output pin and a bias voltage signal pin, universal input output pin is used for exporting control signal, and bias voltage signal pin is for exporting the bias voltage signal of high level; And
One headset circuit for detecting, comprising:
Control signal input, is connected with the universal input output pin of processing unit, for receiving the control signal of universal input output pin output;
Bias voltage signal input, is connected with the bias voltage signal pin of processing unit, for receiving the bias voltage signal of bias voltage signal pin output;
Positive bias signal output part, is connected with the anodal pin of microphone of audio codec;
Back bias voltage signal output part, is connected with the microphone negative pole pin of audio codec;
Reference voltage input terminal, for providing reference voltage;
One headset, comprise earphone and microphone, this microphone comprises positive pole and negative pole, between the positive pole of this microphone, negative pole, be connected with the first diode and first resistance of a series connection, the positive pole of this first diode connects the negative pole of microphone, and the negative pole of the first diode connects the positive pole of microphone through the first resistance;
Above-mentioned electronic installation can be detected the above-mentioned headset of identification, and above-mentioned headset mates with above-mentioned communication device is unique.
Electronic installation of the present invention and headset, can guarantee that user uses the headset of original-pack certified products, guarantees user's result of use.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of electronic installation of the present invention.
Fig. 2 is a headset circuit for detecting embodiment circuit diagram in electronic installation of the present invention.
Main element symbol description
| Electronic installation | 100 |
| Electronics | 10 |
| Processing unit | 101 |
| Universal input output pin | 1011 |
| Bias voltage signal output pin | 1012 |
| Audio codec | 102 |
| The anodal pin of microphone | 1021 |
| Microphone negative pole pin | 1022 |
| The anodal pin of earphone | 1023 |
| Earphone negative pole pin | 1024 |
| Headset circuit for detecting | 103 |
| Bias |
1031 |
| |
1032 |
| Positive bias |
1033 |
| Back bias voltage |
1034 |
| The first |
1035 |
| The second |
1036 |
| Diode | D1 |
| Light-emitting diode | D2，D3 |
| Phototriode | Q1，Q2 |
| Triode | Q3，Q4 |
| Reference voltage input terminal | VCC |
| Original-pack headset | 20 |
| Microphone | 201 |
| Earphone | 202 |
| Resistance | R1，R2，R3，R4，R5，R6，R7 |
| Electric capacity | C1，C2，C3，C4 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Referring to Fig. 1, is the circuit block diagram of one embodiment of the invention electronic installation.Electronic installation 100 comprises electronics 10 and original-pack headset 20.Electronics 10 comprises processing unit 101 and headset circuit for detecting 103, wherein, this processing unit 101 comprises a universal input output pin 1011 and a bias voltage signal output pin 1012, universal input output pin 1011 is for exporting control signal, bias voltage signal output pin 1012 is for exporting the bias voltage signal of high level, in this processing unit 101, be integrated with audio codec 102, this audio codec 102 comprises the anodal pin 1021 of microphone, microphone negative pole pin 1022, the anodal pin 1023 of earphone, earphone negative pole pin 1024.Headset circuit for detecting 103 comprises bias voltage signal input 1031, control signal input 1032, positive bias signal output part 1033, back bias voltage signal output part 1034 and reference voltage input terminal VCC.Original-pack headset 20 comprises microphone 201 and earphone 202, a diode D1 in parallel between the both positive and negative polarity of this microphone 201, the positive pole of diode D1 connects the negative pole (not indicating in figure) of microphone 201, and the negative pole of triode is through the positive pole (not indicating in figure) of a resistance R 1 connection microphone 201.When electronics 10 connects original-pack headset 20, the anodal pin 1021 of the microphone of audio codec 102 is connected to the positive pole (not indicating in figure) of microphone 201 through capacitor C 1, microphone negative pole pin 1022 is connected to the negative pole (in figure do not indicate) of microphone 201 through capacitor C 2, the positive pole of anodal pin 1023 frames connecting with headphones 202 of earphone (not indicating in figure), the negative pole of earphone negative pole pin 1024 frames connecting with headphones 202 (not indicating in figure).The bias voltage signal input 1031 of headset circuit for detecting 103 connects the bias voltage signal output pin 1012 of processing unit 101, control signal input 1032 connects the universal input output pin 1011 of processing unit 101, positive bias signal output part 1033 connects the anodal pin 1021 of microphone of audio codec 102, and when being connected with original-pack headset 20, electronics 10 connects the positive pole of microphone 201, back bias voltage signal output part 1034 connects the microphone negative pole pin 1022 of audio codec 102, and when being connected with original-pack headset 20, electronics 10 connects the negative pole of microphone 201.
In present embodiment, when original-pack headset 20 is not connected in electronics 10, the universal input output pin 1011 of processing unit 101 continues output low level signal to the control signal input 1032 of headset circuit for detecting 103, make the positive bias signal output part 1033 of headset circuit for detecting 103 continue output low level signal, back bias voltage signal output part 1034 continues output high level signal.When user is connected to original-pack headset 20 after electronics 10, the positive bias signal output part 1033 of headset circuit for detecting 103 is connected with the negative pole of the positive pole of microphone 201 and diode D1, the back bias voltage signal output part 1034 of headset circuit for detecting 103 is connected with the positive pole of the negative pole of microphone 201 and diode D1, due to positive bias signal output part 1033 output low level signals, back bias voltage signal output part 1034 output high level signals, so diode D1 conducting (now microphone 201 not conductings), the anodal pin 1021 of the microphone of audio codec 102 has electric current to flow into, processing unit 101 judgements have original-pack headset 20 accesses.When processing unit 101 judgements have original-pack headset 20 access, control signal input 1032 from universal input output pin 1011 output high level signals to headset circuit for detecting 103, make the positive bias signal output part 1033 output high level signals of headset circuit for detecting 103, back bias voltage signal output part 1034 output low level signals, not conducting of light-emitting diode D3, and microphone 201 conductings, this original-pack headset 20 can be used in this electronics 10, now, microphone negative pole pin 1022 has electric current input.When user pulls out after original-pack headset 20, the anodal pin 1021 of microphone and the microphone negative pole pin 1022 of audio codec 102 all do not have electric current input, processing unit 101 judgement headsets are extracted, control universal input output pin 1011 output low level signal again, for next headset is detected ready.And when user is connected in electronics 10 by a non-original-pack headset, on microphone because of non-original-pack headset, be not parallel with diode D1, the anodal pin 1021 of microphone of audio codec 102 does not have electric current to flow into, electronics 10 still judges does not have headset to connect, and non-original-pack headset can not be used in this electronics 10.
Referring to Fig. 2, is an embodiment circuit diagram of this headset circuit for detecting 103, and this headset circuit for detecting 103 comprises the first optical coupler 1035, the second optical coupler 1036, triode Q3 and Q4, resistance R 2, R3, R4, R5, R6 and R7, capacitor C 3 and C4, reference voltage input terminal VCC, bias voltage signal input 1031, control signal input 1032, positive bias signal output part 1033 and back bias voltage signal output part 1034.Wherein, the first optical coupler 1035 comprises light-emitting diode D2 and phototriode Q1, the positive pole of this light-emitting diode D2 connects reference voltage input terminal VCC via resistance R 2, negative pole is connected with control signal input 1032, thereby from universal input output pin 1011 reception control signals of processing unit 101.The grounded emitter of this phototriode Q1, the collector electrode of collector electrode connecting triode Q4, the collector electrode of phototriode Q1 is also connected with positive bias signal output part 1033 by resistance R 6.
The second optical coupler 1036 comprises light-emitting diode D3 and phototriode Q2, wherein, the positive pole of this light-emitting diode D3 is connected with control signal input 1032 via resistance R 3, thereby from universal input output pin 1011 reception control signals of processing unit 101, the minus earth of this light-emitting diode D3.The grounded emitter of this phototriode Q2, the collector electrode of collector electrode connecting triode Q3, the collector electrode of this phototriode Q2 is also connected with back bias voltage signal output part 1034 by resistance R 7.The emitter of triode Q3 connects bias voltage signal input 1031, base stage connects the collector electrode of phototriode Q1 and triode Q4 via resistance R 4, the emitter of triode Q4 connects bias voltage signal input 1031, and base stage connects the collector electrode of phototriode Q2 and triode Q3 via resistance R 5.Capacitor C 3 one end are connected in phototriode Q1 collector electrode, between the base stage tie point and resistance R 6 of the collector electrode of triode Q4 and triode Q3, other end ground connection, these capacitor C 4 one end are connected in the collector electrode of phototriode Q2, between the collector electrode of triode Q3 and triode Q4 base stage tie point and resistance R 7, other end ground connection.
In the present embodiment, when not having original-pack headset 20 to be connected to electronics 10, control signal input 1032 inputs of headset circuit for detecting 103 continue to receive low level signal, light-emitting diode D2 is luminous, phototriode Q1 conducting, positive bias signal output part 1033 is by the phototriode Q1 ground connection of conducting, output low level signal, the base stage of triode Q3 is through the phototriode Q1 of resistance R 4 and conducting ground connection, thereby make triode Q3 conducting, back bias voltage signal output part 1034 connects bias voltage signal input 1031 and obtains the bias voltage signal of high level of bias voltage signal output pin 1012 outputs of this processing unit through the triode Q3 of conducting, thereby back bias voltage signal output part 1034 output high level signals.Thereby make diode D1 conducting, the anodal pin 1021 of the microphone of audio codec 102 has electric current to flow into, processing unit 101 judgements have original-pack headset 20 accesses.
When non-original-pack headset is connected to electronics 10, on the microphone due to non-original-pack headset, there is no parallel diode, the anodal pin 1021 of microphone of audio codec 102 does not have electric current to flow into, and electronic installation 100 still judges does not have headset to connect.And after electronics 10 judgements have original-pack headset 20 to connect, control signal input 1032 continues output high level signal, light-emitting diode D3 is luminous, phototriode Q2 conducting, back bias voltage signal output part 1034 is through phototriode Q2 ground connection, output low level signal, the base stage of triode Q4 is via resistance R 5 and phototriode Q2 ground connection, make triode Q4 conducting, positive bias signal output part 1033 connects bias voltage signal input 1031 and obtains the bias voltage signal of high level of bias voltage signal output pin 1012 outputs of this processing unit through the triode Q4 of conducting, thereby positive bias signal output part 1033 output high level level signals, thereby make microphone 201 conductings, original-pack headset 20 can be used on electronic installation 100.
Be appreciated that the above execution mode is used for illustrative purposes only, and be not limitation of the present invention.The variation that the those of ordinary skill in relevant technologies field is made in corresponding technical field according to the present invention should belong to protection category of the present invention.
Claims (10)
1. an electronic installation, comprising:
One electronics, comprising:
One processing unit, comprise an audio codec, this audio codec comprises the anodal pin of microphone, microphone negative pole pin, the anodal pin of earphone, earphone negative pole pin, this processing unit also comprises universal input output pin and a bias voltage signal pin, universal input output pin is used for exporting control signal, and bias voltage signal pin is for exporting the bias voltage signal of high level; And
One headset circuit for detecting, comprising:
Control signal input, is connected with the universal input output pin of processing unit, for receiving the control signal of universal input output pin output;
Bias voltage signal input, is connected with the bias voltage signal pin of processing unit, for receiving the bias voltage signal of bias voltage signal pin output;
Positive bias signal output part, is connected with the anodal pin of microphone of audio codec;
Back bias voltage signal output part, is connected with the microphone negative pole pin of audio codec;
Reference voltage input terminal, for providing reference voltage;
One headset, comprise earphone and microphone, this microphone comprises positive pole and negative pole, between the positive pole of this microphone, negative pole, be connected with the first diode and first resistance of a series connection, the positive pole of this first diode connects the negative pole of microphone, and the negative pole of the first diode connects the positive pole of microphone through the first resistance;
Wherein, when headset is not connected on electronic installation, the universal input output pin of processing unit continues output low level signal to the control signal input of headset circuit for detecting, make the positive bias signal output part of headset circuit for detecting continue output low level signal, back bias voltage signal output part continues output high level signal, when user is connected to headset after electronic installation, the positive pole of microphone is connected to the anodal pin of microphone of audio codec via the first electric capacity, the negative pole of microphone is connected to the microphone negative pole pin of audio codec via the second electric capacity, and the positive bias signal output part of headset circuit for detecting is connected with the negative pole anodal and the first diode of microphone, the back bias voltage signal output part of headset circuit for detecting is connected with the positive pole of the negative pole of microphone and the first diode, due to positive bias signal output part output low level signal, back bias voltage signal output part output high level signal, make this first diode current flow, the anodal pin of the microphone of audio codec has electric current to flow into, processing unit judgement has headset access, when processing unit judgement has original-pack headset access, control universal input output pin output high level signal to the control signal input of headset circuit for detecting, make the positive bias signal output part output high level signal of headset circuit for detecting, back bias voltage signal output part output low level signal, thereby make microphone conducting, headset is in up state.
2. electronic installation as claimed in claim 1, is characterized in that, the anodal pin of this microphone connects one first electric capacity, and microphone negative pole pin connects one second electric capacity, and the capacitance of described the first electric capacity and the second electric capacity is 0.1 microfarad.
3. electronic installation as claimed in claim 1, is characterized in that, the resistance of described the first resistance is 1000 ohm.
4. electronic installation as claimed in claim 1, is characterized in that, described reference voltage is 3.3 volts.
5. electronic installation as claimed in claim 1, is characterized in that, this headset circuit for detecting also comprises:
The first optical coupler, comprise the second diode, the first phototriode and the second resistance, the anode of this second diode connects reference voltage input terminal via the second resistance, negative electrode is connected with control signal input, from this processing unit universal input output pin reception control signal, the grounded emitter of this first phototriode, collector connects positive bias signal output part;
The second optical coupler, comprise the 3rd diode the second phototriode and the 3rd resistance, the anode of the 3rd diode is the universal input output pin reception control signal from this processing unit via the 3rd resistance, minus earth, the grounded emitter of this second phototriode, collector connects back bias voltage signal output part;
The 3rd triode, its base stage connects the collector electrode of this first phototriode, and its emitter connects the bias voltage pin of this audio codec, and its collector electrode connects the collector electrode of this second phototriode;
The 4th resistance, is connected in the base stage of the 3rd triode, and the base stage of the 3rd triode is connected to the collector electrode of the first phototriode via the 4th resistance;
The 4th triode, its base stage connects the collector electrode of this second phototriode, and its emitter connects this audio codec bias voltage pin, and its collector electrode connects the collector electrode of this first phototriode;
The 5th resistance, is connected in the base stage of the 4th triode, and the base stage of the 4th triode is connected to the collector electrode of the second photo resistance via the 5th resistance;
The 6th resistance, is connected in the collector electrode of the 4th triode, between the base stage tie point and positive bias signal output part of the collector electrode of the first phototriode and the 3rd triode;
The 7th resistance, is connected in the collector electrode of the 3rd triode, between the base stage tie point and back bias voltage signal output part of the collector electrode of the second phototriode and the 4th triode;
The 3rd electric capacity, one end is connected to the first phototriode collector electrode, between the base stage tie point and the 6th resistance of the collector electrode of the 4th triode and the 3rd triode, other end ground connection;
The 4th electric capacity, one end is connected to the collector electrode of the second phototriode, between the base stage tie point and the 7th resistance of the collector electrode of the 3rd triode and the 4th triode, other end ground connection.
6. electronic installation as claimed in claim 5, is characterized in that, the second resistance, and the 3rd resistance, the resistance of the 6th resistance and the 7th resistance is 1000 ohm, the 4th resistance, the resistance of the 5th resistance is 100000 ohm.
7. an electronics, comprising:
One processing unit, comprise an audio codec, this audio codec comprises the anodal pin of microphone, microphone negative pole pin, the anodal pin of earphone, earphone negative pole pin, the anodal pin of this microphone connects one first electric capacity, and microphone negative pole pin connects one second electric capacity, and this processing unit also comprises universal input output pin and a bias voltage signal pin, universal input output pin is used for exporting control signal, and bias voltage signal pin is for exporting the bias voltage signal of high level; And
One headset circuit for detecting, comprising:
Control signal input, is connected with the universal input output pin of processing unit, for receiving the control signal of universal input output pin output;
Bias voltage signal input, is connected with the bias voltage signal pin of processing unit, for receiving the bias voltage signal of bias voltage signal pin output;
Positive bias signal output part, is connected with the anodal pin of microphone of audio codec;
Back bias voltage signal output part, is connected with the microphone negative pole pin of audio codec;
Reference voltage input terminal, for providing reference voltage.
8. electronic installation as claimed in claim 7, is characterized in that, this headset circuit for detecting also comprises:
The first optical coupler, comprise the second diode, the first phototriode and the second resistance, the anode of this second diode connects reference voltage input terminal via the second resistance, negative electrode is connected with control signal input, from this processing unit universal input output pin reception control signal, the grounded emitter of this first phototriode, collector connects positive bias signal output part;
The second optical coupler, comprise the 3rd diode the second phototriode and the 3rd resistance, the anode of the 3rd diode is the universal input output pin reception control signal from this processing unit via the 3rd resistance, minus earth, the grounded emitter of this second phototriode, collector connects back bias voltage signal output part;
The 3rd triode, its base stage connects the collector electrode of this first phototriode, and its emitter connects the bias voltage pin of this audio codec, and its collector electrode connects the collector electrode of this second phototriode;
The 4th resistance, is connected in the base stage of the 3rd triode, and the base stage of the 3rd triode is connected to the collector electrode of the first phototriode via the 4th resistance;
The 4th triode, its base stage connects the collector electrode of this second phototriode, and its emitter connects this audio codec bias voltage pin, and its collector electrode connects the collector electrode of this first phototriode;
The 5th resistance, is connected in the base stage of the 4th triode, and the base stage of the 4th triode is connected to the collector electrode of the second photo resistance via the 5th resistance;
The 6th resistance, is connected in the collector electrode of the 4th triode, between the base stage tie point and positive bias signal output part of the collector electrode of the first phototriode and the 3rd triode;
The 7th resistance, is connected in the collector electrode of the 3rd triode, between the base stage tie point and back bias voltage signal output part of the collector electrode of the second phototriode and the 4th triode;
The 3rd electric capacity, one end is connected to the first phototriode collector electrode, between the base stage tie point and the 6th resistance of the collector electrode of the 4th triode and the 3rd triode, other end ground connection;
The 4th electric capacity, one end is connected to the collector electrode of the second phototriode, between the base stage tie point and the 7th resistance of the collector electrode of the 3rd triode and the 4th triode, other end ground connection.
9. a headset, comprise earphone and microphone, this microphone comprises positive pole and negative pole, is connected with diode and the resistance of a series connection between the positive pole of this microphone, negative pole, the positive pole of diode connects the negative pole of microphone, and the negative pole of diode connects the positive pole of microphone through resistance.
10. headset as claimed in claim 9, is characterized in that, the resistance of described resistance is 1000 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198016.9A CN103517181B (en) | 2012-06-15 | 2012-06-15 | Electronic installation and headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198016.9A CN103517181B (en) | 2012-06-15 | 2012-06-15 | Electronic installation and headset |
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| Publication Number | Publication Date |
|---|---|
| CN103517181A true CN103517181A (en) | 2014-01-15 |
| CN103517181B CN103517181B (en) | 2016-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210198016.9A Active CN103517181B (en) | 2012-06-15 | 2012-06-15 | Electronic installation and headset |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104902378A (en) * | 2015-06-26 | 2015-09-09 | 上海斐讯数据通信技术有限公司 | Headset, electronic terminal and method for headset type discrimination |
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| US20040100275A1 (en) * | 2002-08-24 | 2004-05-27 | Samsung Electronics Co., Ltd. | Apparatus for detecting connection state between stereo earphone plug and corresponding jack of mobile communication terminal |
| CN2819226Y (en) * | 2005-07-22 | 2006-09-20 | 华为技术有限公司 | Earphone inserted tester |
| CN101630802A (en) * | 2008-07-15 | 2010-01-20 | 深圳富泰宏精密工业有限公司 | Headphone jack structure |
| CN101778320A (en) * | 2009-12-25 | 2010-07-14 | 中兴通讯股份有限公司 | Microphone key-press earphone and state identification method |
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2012
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|---|---|---|---|---|
| US20040100275A1 (en) * | 2002-08-24 | 2004-05-27 | Samsung Electronics Co., Ltd. | Apparatus for detecting connection state between stereo earphone plug and corresponding jack of mobile communication terminal |
| CN2819226Y (en) * | 2005-07-22 | 2006-09-20 | 华为技术有限公司 | Earphone inserted tester |
| CN101630802A (en) * | 2008-07-15 | 2010-01-20 | 深圳富泰宏精密工业有限公司 | Headphone jack structure |
| CN101778320A (en) * | 2009-12-25 | 2010-07-14 | 中兴通讯股份有限公司 | Microphone key-press earphone and state identification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104902378A (en) * | 2015-06-26 | 2015-09-09 | 上海斐讯数据通信技术有限公司 | Headset, electronic terminal and method for headset type discrimination |
| CN104902378B (en) * | 2015-06-26 | 2018-05-01 | 上海斐讯数据通信技术有限公司 | Headset, electric terminal and headset type discriminating conduct |
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| Publication number | Publication date |
|---|---|
| CN103517181B (en) | 2016-11-02 |
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Effective date of registration: 20180226 Address after: Shanghai City, Songjiang District Songjiang Export Processing Zone South Road No. 1925 Patentee after: Ambit Microsystems (Shanghai) Co., Ltd. Address before: 201613 Shanghai City, Songjiang District Songjiang Export Processing Zone South Road No. 1925 Co-patentee before: Hon Hai Precision Industry Co., Ltd. Patentee before: Ambit Microsystems (Shanghai) Co., Ltd. |