CN103489431B - A kind of display terminal - Google Patents
A kind of display terminal Download PDFInfo
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- CN103489431B CN103489431B CN201210396617.0A CN201210396617A CN103489431B CN 103489431 B CN103489431 B CN 103489431B CN 201210396617 A CN201210396617 A CN 201210396617A CN 103489431 B CN103489431 B CN 103489431B
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Abstract
The invention discloses a kind of display terminal, comprise earphone interface circuit, for receiving the voice signal that display terminal mainboard exports, then sending to shared interface end; Service interface circuit, exchanges mutually for carrying out data between shared interface end, display terminal mainboard; Shared interface end, is connected with external data transmission equipment with earphone interface circuit, service interface circuit, outer audio equipment respectively; Display terminal mainboard, is connected with earphone interface circuit, service interface circuit respectively; Circuit between described shared interface end and earphone interface circuit, service interface circuit is also provided with switching switch circuit.A kind of display terminal disclosed by the invention, it can only need an interface can realize the function of original earphone interface and service interface, drastically reduce the area the area of the printing board PCB taken, reduce the size of PCB, be conducive to the space of saving user's preciousness, facilitate user to use in routine work and life.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of display terminal.
Background technology
Along with the development of human sciences's technology, the domestic electric appliances such as computing machine, televisor, video camera, camera are more and more universal in people's daily life, become people and to have lived indispensable ingredient.
For display terminals such as current displays, not only there is earphone interface above it, for voice output, also there is service interface simultaneously, this service interface is used for write in the program in equipment development stage, debug uses, and is used for after sale upgrading with relief customer service in sale and keeps in repair use.At current most display terminal, all there are this two Functional Designs.
But, for present display terminal, earphone interface on it and service interface are the circuit structure of design separately, therefore, the function of earphone interface and service interface separately design can cause the Area comparison of the printed circuit board (PCB) (PCB) taken large, and considerably increase the size of PCB, that display terminal can not be done is less, thinner, therefore can not save the space of user's preciousness, be inconvenient to allow user use in routine work and life.Meanwhile, earphone interface and service interface design separately, and these two interfaces add the use of respective peripheral circuit component respectively, also by improving the production cost of display terminal, are unfavorable for that display terminal is commercially applied.
Therefore, at present in the urgent need to developing a kind of display terminal, it can only need an interface can realize the function of original earphone interface and service interface, earphone interface and service interface share an interface, therefore, drastically reduce the area the area of the printing board PCB taken, reduce the size of PCB, save the production cost of display terminal simultaneously, be conducive to the space of saving user's preciousness, be more conducive to user and use in routine work and life.
Summary of the invention
In view of this, the object of this invention is to provide a kind of display terminal, it can only need an interface can realize the function of original earphone interface and service interface, earphone interface and service interface share an interface, therefore, drastically reduce the area the area of the printing board PCB taken, reduce the size of PCB, be conducive to the space of saving user's preciousness, user is facilitated to use in routine work and life, save the production cost of display terminal simultaneously, be conducive to display terminal commercially to apply, thus the product use sense of enhancing user to display terminal is subject to, be of great practical significance.
For this reason, the invention provides a kind of display terminal, comprise earphone interface circuit, service interface circuit, shared interface end, display terminal mainboard, wherein:
Earphone interface circuit, for receiving the voice signal that display terminal mainboard exports, then sends to shared interface end;
Service interface circuit, exchanges mutually for carrying out data between shared interface end, display terminal mainboard;
Shared interface end, be connected with external data transmission equipment with earphone interface circuit, service interface circuit, outer audio equipment respectively, for receiving the sound signal that earphone interface circuit sends, then externally audio frequency apparatus exports, and receive the data of external data transmission equipment input, then send to service interface circuit;
Display terminal mainboard, is connected with earphone interface circuit, service interface circuit respectively, for earphone interface circuit output sound signal, and and service interface circuit between carry out data and mutually exchange;
Circuit between described shared interface end and earphone interface circuit, service interface circuit is also provided with switching switch circuit, for controlling described shared interface end and being communicated with or disconnection between earphone interface circuit, service interface circuit respectively.
Wherein, described shared interface end is earphone interface or the service interface with seven stitch.
Wherein, described switching switch circuit comprises multiple switch, described multiple switch is arranged on the circuit between described shared interface end and earphone interface circuit, service interface circuit respectively, and described switching switch circuit is switched by the on off operating mode controlling described multiple switch respectively and earphone interface circuit, connection status between service interface circuit.
Wherein, described display terminal mainboard have R channel output terminal R, L channel output terminal L and identification signal input end IDENT, described earphone interface circuit is connected with identification signal input end IDENT with described R channel output terminal R, L channel output terminal L, and described earphone interface circuit is also connected with stitch 7 by the stitch 3 of switching switch circuit and described shared interface end, stitch 2.
Wherein, described earphone interface circuit includes resistance R1, resistance R2 and resistance R3, and comprises electric capacity C1 and electric capacity C2;
Described R channel output terminal R connects the stitch 3 of electric capacity C1, resistance R1, switch J7 and shared interface end successively, described L channel output terminal L connects the stitch 2 of electric capacity C2, resistance R2, switch J8 and shared interface end successively, the stitch 7 of described identification signal input end IDENT connecting resistance R3, switch J9 and shared interface end successively.
Wherein, described display terminal mainboard has and sends signal end TX and Received signal strength end RX, described service interface circuit is connected with Received signal strength end RX with described transmission signal end TX, and described service interface circuit is also connected with the stitch 2 ~ 7 of described shared interface end by described switching switch circuit.
Wherein, described service interface circuit includes resistance R4, resistance R5, ground protection device V1 and ground protection device V2;
Described transmission signal end TX connects with resistance R5, and described resistance R5 meets the stitch 4 of described shared interface end, switch J1, switch J3 and ground protection device V1 respectively, described ground protection device V1 ground connection;
Described switch J1 connects stitch 1 and the ground connection of described shared interface end respectively; Described switch J3 meets stitch 5 and the switch J4 of described shared interface end respectively, and described switch J4 connects with the stitch 3 of described shared interface end;
Described Received signal strength end RX connects with resistance R4, and described resistance R4 meets the stitch 6 of described shared interface end, switch J2, switch J6 and ground protection device V2 respectively, described ground protection device V2 ground connection;
Described switch J2 connects stitch 1 and the ground connection of described shared interface end respectively; Described switch J6 meets stitch 7 and the switch J5 of described shared interface end respectively, and described switch J5 connects with the stitch 2 of described shared interface end.
Wherein, described ground protection device V1 and V2 is commutator tube.
Wherein, described switch J1 ~ J9 is jumper switch.
From above technical scheme provided by the invention, compared with prior art, the invention provides a kind of display terminal, it can only need an interface can realize the function of original earphone interface and service interface, namely allow a shared interface end have the function of earphone interface and service interface simultaneously, realize interface to share, therefore, drastically reduce the area the area of the printing board PCB taken, reduce the size of PCB, be conducive to the space of saving user's preciousness, user is facilitated to use in routine work and life, save the production cost of display terminal simultaneously, be conducive to display terminal commercially to apply, thus the product use sense of enhancing user to display terminal is subject to, be of great practical significance.
Accompanying drawing explanation
Fig. 1 is service interface circuit in a kind of display terminal provided by the invention, earphone interface circuit, connection block diagram between shared interface end and mainboard chip;
Fig. 2 is service interface circuit in a kind of display terminal provided by the invention, concrete connecting circuit schematic diagram when installing switch between earphone interface circuit and shared interface end;
Fig. 3 be earphone interface circuit in a kind of display terminal provided by the invention and do not install switch between shared interface end time connecting circuit schematic diagram;
Fig. 4 be service interface circuit in a kind of display terminal provided by the invention and do not install switch between shared interface end time connecting circuit schematic diagram.
Embodiment
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
See Fig. 1, Fig. 2, the invention provides a kind of display terminal, comprise earphone interface circuit 100, service interface circuit 200, shared interface end 300, display terminal mainboard 400, wherein:
Earphone interface circuit 100, for receiving the voice signal that display terminal mainboard exports, then sends to shared interface end;
Service interface circuit 200, mutually exchange for carrying out data between shared interface end, display terminal mainboard, the data exported by display terminal mainboard send to shared interface end, and the external data inputted from shared interface end is sent to display terminal mainboard, therefore can realize the function of exchange of the service datas such as the ROMPaq that display terminal mainboard and external data transmission equipment input, realize the operations such as upgrading and software maintenance;
Shared interface end 300, be connected with external data transmission equipment with earphone interface circuit 100, service interface circuit 200, outer audio equipment respectively, for receiving the sound signal that earphone interface circuit sends, then externally audio frequency apparatus exports, and the data that reception external data transmission equipment (as computing machine) inputs, then send to service interface circuit;
Display terminal mainboard 400, is connected with earphone interface circuit, service interface circuit respectively, for earphone interface circuit output sound signal, and and service interface circuit between carry out data and mutually exchange;
In the present invention, circuit between described shared interface end 300 and earphone interface circuit 100, service interface circuit 200 is also provided with switching switch circuit 500, for controlling described shared interface end 300 and being communicated with or disconnection between earphone interface circuit 100, service interface circuit 200 respectively.
It should be noted that, because earphone interface circuit is all connected with described shared interface end with service interface circuit, if earphone interface circuit, service interface circuit are connected with described shared interface end simultaneously, so earphone interface circuit, signal between service interface circuit and described shared interface end easily clash alternately, cause earphone interface circuit, the signal transfer functions of service interface circuit cannot normally use.
In the present invention, described display terminal can comprise the device that any one such as display, panel computer and all-in-one have menu display function.
In the present invention, described external data transmission equipment can export the equipment of data, such as notebook computer, desk-top computer, panel computer etc. for any one.
In the present invention, described outer audio equipment can have the equipment of voice signal playing function, such as microphone, audio amplifier for any one.
In the present invention, in specific implementation, described shared interface end 300 can, for having earphone interface or the service interface of seven stitch, such as, can be the earphone interface CN301 shown in Fig. 2, Fig. 3.
It should be noted that, for the present invention, when described shared interface end 300 uses as earphone interface time, the definition of 7 stitch that this shared interface end 300 has is respectively: stitch 1, stitch 4, stitch 5 and stitch 6 are earth terminals, for ground connection; And stitch 3 is as the left input end of headphones sound, stitch 2 is as the right input end of headphones sound, and stitch 7 is as the voice recognition end of earphone.
In addition, when described shared interface end 300 uses as service interface time, the definition of 7 stitch that this shared interface end 300 has is respectively: stitch 1 is earth terminal, for ground connection; Stitch 3, stitch 4 are connected with stitch 5, and the TX for service interface transmits transmission, and stitch 2, stitch 7 are connected for the transmission of Connection Service interface RX Received signal strength with stitch 6.
Participate in Fig. 2, described switching switch circuit 500 comprises switch J1 ~ J9, described switch J1 ~ J9 preferably adopts jumper switch, described multiple switch J1 ~ J9 is arranged on the circuit between described shared interface end and earphone interface circuit, service interface circuit respectively, and described switching switch circuit 500 is switched by the on off operating mode controlling described switch J1 ~ J9 respectively and earphone interface circuit, connection status between service interface circuit.
See Fig. 2, Fig. 3, described display terminal mainboard have R channel output terminal R, L channel output terminal L and identification signal input end IDENT, described earphone interface circuit 100 is connected with identification signal input end IDENT with described R channel output terminal R, L channel output terminal L, and described earphone interface circuit 100 is also connected with stitch 7 by the stitch 3 of switching switch circuit 500 and described shared interface end 300, stitch 2.
In the present invention, in specific implementation, see Fig. 2, Fig. 3, described earphone interface circuit 100 includes resistance R1, resistance R2 and resistance R3, and comprises electric capacity C1 and electric capacity C2;
Described R channel output terminal R connects the stitch 3 of electric capacity C1, resistance R1, switch J7 and shared interface end 300 successively, described L channel output terminal L connects the stitch 2 of electric capacity C2, resistance R2, switch J8 and shared interface end 300 successively, the stitch 7 of described identification signal input end IDENT connecting resistance R3, switch J9 and shared interface end 300 successively.
It should be noted that, when there being an external headphones to be inserted into shared interface end 300, shared interface end 300 can send an identification signal by described earphone interface circuit to the identification signal input end IDENT of described display terminal mainboard 400, the equipment inserted is an earphone to allow described display terminal mainboard 400 judge, then, the R channel output terminal R on described display terminal mainboard 400, L channel output terminal L export right channel sound and L channel sound respectively by described earphone interface circuit 100 to the external headphones inserted.
See Fig. 2, Fig. 4, described display terminal mainboard has and sends signal end TX and Received signal strength end RX, described service interface circuit 200 is connected with Received signal strength end RX with described transmission signal end TX, and described service interface circuit 200 is also connected with the stitch 2 ~ 7 of described shared interface end 300 by described switching switch circuit 500.
In the present invention, in specific implementation, see Fig. 2, Fig. 4, described service interface circuit 200 includes resistance R4, resistance R5, ground protection device V1 and ground protection device V2;
Described transmission signal end TX connects with resistance R5, and described resistance R5 meets the stitch 4 of described shared interface end 300, switch J1, switch J3 and ground protection device V1 respectively, described ground protection device V1 ground connection;
Described switch J1 connects stitch 1 and the ground connection of described shared interface end 300 respectively; Described switch J3 meets stitch 5 and the switch J4 of described shared interface end 300 respectively, and described switch J4 connects with the stitch 3 of described shared interface end 300.
Described Received signal strength end RX connects with resistance R4, and described resistance R4 meets the stitch 6 of described shared interface end 300, switch J2, switch J6 and ground protection device V2 respectively, described ground protection device V2 ground connection;
Described switch J2 connects stitch 1 and the ground connection of described shared interface end 300 respectively; Described switch J6 meets stitch 7 and the switch J5 of described shared interface end 300 respectively, and described switch J5 connects with the stitch 2 of described shared interface end 300.
In the present invention, in specific implementation, described ground protection device V1 and V2 can be commutator tube, and other can realize earth leakage protective device, to avoid the generation of electric leakage accident.
It should be noted that, see Fig. 2, Fig. 4, when external data transmission equipment needs to carry out exchanges data between display terminal mainboard 400, the various service datas comprising software upgrade data of external data transmission equipment input can be received by the Received signal strength end RX of described display terminal mainboard 400, realize service interface function, and can export by sending signal end TX the display terminal various performance parameters information (such as software version information, hardware information) that described display terminal mainboard 400 prestores.
See Fig. 2, Fig. 2 be service interface circuit in a kind of display terminal provided by the invention, install jumper switch between earphone interface circuit and shared interface end time concrete connecting circuit schematic diagram.In specific implementation, by described switching switch circuit 500, switch the connected state (be communicated with or disconnect) controlling earphone interface circuit, service interface circuit and described shared interface end respectively.
It should be noted that, for display terminal provided by the invention, when shared interface end will use as earphone interface by user, earphone interface circuit 100 is needed to be connected with shared interface end 300, disconnect the connection between service interface circuit 200 and shared interface end 300 simultaneously, therefore, first user can close switch J7 described in conducting, J8, J9, allow earphone interface circuit 100 be connected with shared interface end 300 and (be specially the stitch 3 with described shared interface end 300, stitch 2 is connected with stitch 7), user also needs switch J1 described in closed conducting simultaneously, J2, object is to allow the stitch 4 of described shared interface end 300, stitch 1 and stitch 6 ground connection, service interface circuit 200 now cannot be worked, in addition, user disconnects these four switches of described switch J3 ~ J6, to avoid service interface circuit 200 and earphone interface circuit 100 short circuit, thus the data avoiding service interface circuit 200 to export form interference to the voice signal that earphone interface circuit 100 transmits above, ensure that the voice signal exported from display terminal mainboard 400 can arrive the stitch 3 of shared interface end 300 smoothly by earphone interface circuit 100, stitch 2 and stitch 7, realize externally audio frequency apparatus and export sound.
When shared interface end will use as service interface by user, service interface circuit 200 is needed to be connected with shared interface end 300, disconnect the connection between earphone interface circuit 100 and shared interface end 300 simultaneously, therefore, user closes switch J3 described in conducting, J4, J5, J6, service interface circuit 20 is allowed to be connected (be specially and be connected with the stitch 2 ~ 7 of described shared interface end 300) with shared interface end 300, simultaneously, user disconnects described switch J1, J2 and switch J7, J8, J9, to avoid earphone interface circuit 100 and service interface circuit 200 short circuit, thus the voice signal avoiding earphone interface circuit 100 to transmit forms interference to the data of transmission on service interface circuit 200, ensure that the data exported from display terminal mainboard 400 can arrive the stitch 2 ~ 7 of shared interface end 300 smoothly by service interface circuit 200, finally realize the function of exchange of the service datas such as the ROMPaq between display terminal mainboard and external data transmission equipment.
In the present invention, in specific implementation, the acquiescence duty of described display terminal for shared interface end is used as earphone interface, to facilitate user's routine use shared interface end, by inserting outer audio equipment at shared interface end, realize the function playing music.Just when the users such as service worker need to safeguard display terminal, the maintenance mans talent closes switch J3, J4, J5, J6 described in conducting, disconnect described switch J1, J2 and switch J7, J8, J9 simultaneously, the function realizing shared interface end switches, shared interface end-grain cutting is changed and uses as service interface, thus realizing the function of exchange of the service datas such as the ROMPaq between display terminal mainboard and external data transmission equipment, the users such as convenient for maintaining workman carry out daily servicing and upgrading to display terminal.
Therefore, in sum, compared with prior art, for a kind of display terminal provided by the invention, it can only need an interface can realize the function of original earphone interface and service interface, namely allow a shared interface end have the function of earphone interface and service interface simultaneously, realize interface to share, therefore, drastically reduce the area the area of the printing board PCB taken, reduce the size of PCB, be conducive to the space of saving user's preciousness, user is facilitated to use in routine work and life, save the production cost of display terminal simultaneously, be conducive to display terminal commercially to apply, thus the product use sense of enhancing user to display terminal is subject to, be of great practical significance.
The display terminal that the application of the invention provides, the convenience that can people be lived is greatly improved, and drastically increases the living standard of people.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a display terminal, is characterized in that, comprises earphone interface circuit, service interface circuit, shared interface end, display terminal mainboard, wherein:
Earphone interface circuit, for receiving the voice signal that display terminal mainboard exports, then sends to shared interface end;
Service interface circuit, exchanges mutually for carrying out data between shared interface end, display terminal mainboard;
Shared interface end, be connected with external data transmission equipment with earphone interface circuit, service interface circuit, outer audio equipment respectively, for receiving the sound signal that earphone interface circuit sends, then externally audio frequency apparatus exports, and receive the data of external data transmission equipment input, then send to service interface circuit;
Display terminal mainboard, is connected with earphone interface circuit, service interface circuit respectively, for earphone interface circuit output sound signal, and and service interface circuit between carry out data and mutually exchange;
Circuit between described shared interface end and earphone interface circuit, service interface circuit is also provided with switching switch circuit, for controlling described shared interface end and being communicated with or disconnection between earphone interface circuit, service interface circuit respectively;
Described display terminal mainboard has R channel output terminal R, L channel output terminal L and identification signal input end IDENT, described earphone interface circuit is connected with identification signal input end IDENT with described R channel output terminal R, L channel output terminal L; Described display terminal mainboard has and sends signal end TX and Received signal strength end RX, described service interface circuit is connected with Received signal strength end RX with described transmission signal end TX.
2. display terminal as claimed in claim 1, it is characterized in that, described shared interface end is earphone interface or the service interface with seven stitch.
3. display terminal as claimed in claim 2, it is characterized in that, described switching switch circuit comprises multiple switch, described multiple switch is arranged on the circuit between described shared interface end and earphone interface circuit, service interface circuit respectively, and described switching switch circuit is switched by the on off operating mode controlling described multiple switch respectively and earphone interface circuit, connection status between service interface circuit.
4. display terminal as claimed in claim 3, is characterized in that, described earphone interface circuit is also connected with stitch 7 by the stitch 3 of switching switch circuit and described shared interface end, stitch 2.
5. display terminal as claimed in claim 4, it is characterized in that, described earphone interface circuit includes resistance R1, resistance R2 and resistance R3, and comprises electric capacity C1 and electric capacity C2;
Described R channel output terminal R connects the stitch 3 of switch J7 in electric capacity C1, resistance R1, described multiple switch and shared interface end successively, described L channel output terminal L connects the stitch 2 of switch J8 in electric capacity C2, resistance R2, described multiple switch and shared interface end successively, the switch J9 of described identification signal input end IDENT successively in connecting resistance R3, described multiple switch and the stitch 7 of shared interface end.
6. display terminal as claimed in claim 5, it is characterized in that, described service interface circuit is also connected by the stitch 2 ~ 7 of described switching switch circuit with described shared interface end.
7. display terminal as claimed in claim 6, it is characterized in that, described service interface circuit includes resistance R4, resistance R5, ground protection device V1 and ground protection device V2;
Described transmission signal end TX connects with resistance R5, and described resistance R5 meets the switch J1 in the stitch 4 of described shared interface end, described multiple switch, the switch J3 in described multiple switch and ground protection device V1 respectively, described ground protection device V1 ground connection;
Described switch J1 connects stitch 1 and the ground connection of described shared interface end respectively; Described switch J3 meets the switch J4 in the stitch 5 of described shared interface end and described multiple switch respectively, and described switch J4 connects with the stitch 3 of described shared interface end;
Described Received signal strength end RX connects with resistance R4, and described resistance R4 meets the switch J2 in the stitch 6 of described shared interface end, described multiple switch, the switch J6 in described multiple switch and ground protection device V2 respectively, described ground protection device V2 ground connection;
Described switch J2 connects stitch 1 and the ground connection of described shared interface end respectively; Described switch J6 meets the switch J5 in the stitch 7 of described shared interface end and described multiple switch respectively, and described switch J5 connects with the stitch 2 of described shared interface end.
8. display terminal as claimed in claim 7, it is characterized in that, described ground protection device V1 and V2 is commutator tube.
9. display terminal as claimed in claim 7 or 8, it is characterized in that, described switch J1 ~ J9 is jumper switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396617.0A CN103489431B (en) | 2012-10-18 | 2012-10-18 | A kind of display terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396617.0A CN103489431B (en) | 2012-10-18 | 2012-10-18 | A kind of display terminal |
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| Publication Number | Publication Date |
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| CN103489431A CN103489431A (en) | 2014-01-01 |
| CN103489431B true CN103489431B (en) | 2015-09-09 |
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| CN201210396617.0A Expired - Fee Related CN103489431B (en) | 2012-10-18 | 2012-10-18 | A kind of display terminal |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363404B (en) * | 2014-10-28 | 2017-06-23 | 广州创维平面显示科技有限公司 | Terminal multiplexing circuit and multimedia terminal equipment |
| CN106454677A (en) * | 2016-10-09 | 2017-02-22 | 青岛海信电器股份有限公司 | Signal circuit control method and display device |
| CN115905063A (en) * | 2021-09-30 | 2023-04-04 | 华为技术有限公司 | Port sharing method and related equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2391424A (en) * | 2002-07-26 | 2004-02-04 | Lake Electronic Tech | Detecting presence of headset connected to telephone |
| CN101841586A (en) * | 2010-04-27 | 2010-09-22 | 深圳桑菲消费通信有限公司 | Method for expanding earphone interface of mobile phone into serial communication interface |
| CN101931674A (en) * | 2010-09-01 | 2010-12-29 | 惠州Tcl移动通信有限公司 | Method and device for sharing Micro-USB interface |
| CN201805529U (en) * | 2010-09-09 | 2011-04-20 | 惠州Tcl移动通信有限公司 | Earphone interface shared by serial port download line and earphone, and mobile terminal shared thereby |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000044371A (en) * | 1998-12-30 | 2000-07-15 | 윤종용 | Method for interfacing headset in telephone set |
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2012
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2391424A (en) * | 2002-07-26 | 2004-02-04 | Lake Electronic Tech | Detecting presence of headset connected to telephone |
| CN101841586A (en) * | 2010-04-27 | 2010-09-22 | 深圳桑菲消费通信有限公司 | Method for expanding earphone interface of mobile phone into serial communication interface |
| CN101931674A (en) * | 2010-09-01 | 2010-12-29 | 惠州Tcl移动通信有限公司 | Method and device for sharing Micro-USB interface |
| CN201805529U (en) * | 2010-09-09 | 2011-04-20 | 惠州Tcl移动通信有限公司 | Earphone interface shared by serial port download line and earphone, and mobile terminal shared thereby |
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