CN204350072U - Data line interface, headset plug, mobile terminal and system - Google Patents

Data line interface, headset plug, mobile terminal and system Download PDF

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Publication number
CN204350072U
CN204350072U CN201420867518.0U CN201420867518U CN204350072U CN 204350072 U CN204350072 U CN 204350072U CN 201420867518 U CN201420867518 U CN 201420867518U CN 204350072 U CN204350072 U CN 204350072U
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China
Prior art keywords
pin
mobile terminal
circuit
data line
line interface
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CN201420867518.0U
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Chinese (zh)
Inventor
廖科勇
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SHANGHAI LOVDREAM COMMUNICATION TECHNOLOGY Co Ltd
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SHANGHAI LOVDREAM COMMUNICATION TECHNOLOGY Co Ltd
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Abstract

The utility model provides a kind of data line interface, headset plug, mobile terminal and system, described mobile terminal comprises a USB transmission circuit and a head circuit, described data line interface comprises the first pin, second pin, 3rd pin, 5th pin, one change-over circuit and a testing circuit, first pin is power pins and is connected with testing circuit, second pin and the 3rd pin are gone between with two sound channels of head circuit respectively by change-over circuit and are connected to form path, testing circuit is used for sending a USB plug access signal to described change-over circuit, change-over circuit is for the connection that disconnects the second pin and the 3rd pin and two sound channels and go between and the second pin and the 3rd pin are connected to form path with two differential signal pins of USB transmission circuit respectively, 5th pin is connected with the ground wire of mobile terminal.The application can make USB data line and the public data-interface of headset plug, saves the space of mainboard and reduces circuit production cost.

Description

Data line interface, headset plug, mobile terminal and system
Technical field
The utility model relates to a kind of data line interface, headset plug, mobile terminal and system.
Background technology
In current cell phone mainboard, two interfaces are respectively equipped with for the access of USB (USB) data wire and earphone cord.USB interface often adopts 5PIN (pin) MICRO_USB (micro universal serial bus) interface of unified standard, and earphone interface great majority adopt 3.5 cun of earphone bases.One piece of mainboard is arranged the space that two interfaces take mainboard more, produce and maintenance cost higher, adopt the mobile terminal of this mainboard not easily profile is done little, do thin.
Utility model content
The technical problems to be solved in the utility model is that the space that two interfaces on the mainboard in order to overcome mobile terminal in prior art take mainboard is larger, the production of mobile terminal and the higher defect of maintenance cost, provide a kind of mainboard utilance high and data line interface, headset plug, mobile terminal and system that production cost is lower.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of data line interface of mobile terminal, described mobile terminal comprises a USB transmission circuit and a head circuit, its feature is, described data line interface comprises the first pin, second pin, 3rd pin, 5th pin, one change-over circuit and a testing circuit, described first pin is power pins and is connected with described testing circuit, described second pin is gone between with the L channel of head circuit by described change-over circuit and is connected to form path, described 3rd pin is gone between with the R channel of head circuit by described change-over circuit and is connected to form path, described testing circuit is used for sending a USB plug access signal to described change-over circuit, described change-over circuit is for disconnecting the second pin and the 3rd pin and L channel goes between and R channel goes between connection and described second pin and the 3rd pin being connected to form path with two differential signal pins of USB transmission circuit respectively, described 5th pin is connected with the ground wire of mobile terminal.
Data line interface of the present utility model can access USB plug and the headset plug of shape and described data line interface mating shapes, wherein the second pin and the 3rd pin and two sound channels go between to be in and often connect state, and namely headset plug just can directly use after inserting described data line interface.And when after USB plug access, first pin is that USB plug is powered, utilize existing detection method, mobile terminal can detect the access of USB plug, and then control change-over circuit and change, described change-over circuit is equivalent to a switch and the connection that the second pin and the 3rd pin and sound channel go between is switched to and is connected with differential signal pin.
The interface pedestal of described data line interface can be mini_USB (Small Universal universal serial bus) interface or MICRO_USB interface.The annexation of the application second pin and the 3rd pin only for convenience of description, be not limit with the first Pin locations close be exactly the second pin, be connected as long as utilize two pins to go between with sound channel respectively and fall in the protection range of the application.
Two interfaces are incorporated in an interface by the application, can increase substantially the utilance of Mobile terminal main board, the profile for mobile terminal do little, do and thinly provide necessary basis.And the application omits an interface, the cost produced and safeguard can be reduced.
Preferably, described 5th pin is connected with described ground wire by a magnetic bead, and be connected a holding wire between described magnetic bead with described 5th pin, described holding wire is connected with the fm broadcast signal receiving terminal of described mobile terminal.
The application can utilize the ground wire of earphone as the antenna receiving fm broadcast signal.Described magnetic bead is used for preventing fm broadcast signal ground connection.
Preferably, described data line interface also comprises one the 4th pin, and described 4th pin is the microphone electrode input end of mobile terminal.
Preferably, described mobile terminal comprises circuits for triggering, and described circuits for triggering and a sound channel of head circuit go between and be connected and access signal for sending a headset plug to the control chip of described mobile terminal.
Described sound channel lead-in wire can be L channel lead-in wire also can be R channel lead-in wire.
The application also provides a kind of headset plug, its feature is, the shape of described headset plug and the form fit of data line interface as above, when headset plug accesses described data line interface, the ground pin of earphone is connected with described 5th pin, and the left and right acoustic channels pin of earphone is connected with the second pin and the 3rd pin respectively.
The application provides again a kind of mobile terminal, and its feature is, described mobile terminal comprises data line interface as above.
The application provides again a kind of mobile terminal system, and its feature is, described mobile terminal system comprises the earphone that mobile terminal as above and comprises headset plug as above.
Positive progressive effect of the present utility model is: two interfaces are incorporated in an interface by the application, can increase substantially the utilance of Mobile terminal main board, the profile for mobile terminal do little, do and thinly provide necessary basis.And the application omits an interface, the cost produced and safeguard can be reduced.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mobile phone of the utility model embodiment.
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
Embodiment
See Fig. 1, the present embodiment provides a kind of cell phone system, and described cell phone system comprises a mobile phone, an earphone and for transmitting the MICRO_USB data wire of data.
Described mobile phone comprises a data line interface, and described earphone comprises a headset plug, the shape of described headset plug and the form fit of described data line interface.The plug shape of described MICRO_USB data wire and the form fit of described data line interface.
Described mobile phone comprises USB transmission circuit 11, head circuit 12 and circuits for triggering 13, and described data line interface 14 comprises the first pin 141, second pin 142, the 3rd pin 143, the 4th pin 144, the 5th pin 145, change-over circuit 146 and a testing circuit 147.
Described first pin is power pins and is connected with described testing circuit 147, described second pin is gone between with the L channel of head circuit by described change-over circuit and is connected to form path, and described 3rd pin is gone between with the R channel of head circuit by described change-over circuit and is connected to form path.Described testing circuit 147 is for sending a USB plug access signal to described change-over circuit, described change-over circuit is for disconnecting the second pin and the 3rd pin and L channel goes between and R channel goes between connection and described second pin and the 3rd pin being connected to form path with two differential signal pins of USB transmission circuit respectively, and described 5th pin is connected with the ground wire of mobile terminal.
Described circuits for triggering and the L channel of head circuit go between and are connected and access signal for sending a headset plug to the control chip of described mobile phone.
Described 5th pin is connected with described ground wire by a magnetic bead 148, and be connected a holding wire between described magnetic bead 148 with described 5th pin, described holding wire is connected with the fm broadcast signal receiving terminal 16 of described mobile terminal.
Described 4th pin is the microphone electrode input end 15 of mobile phone.
Using method of the present utility model is: when the data line interface of mobile phone does not access headset plug and MICRO_USB data cable plug, described second pin is gone between with the L channel of head circuit by described change-over circuit and is connected to form path, and described 3rd pin is gone between with the R channel of head circuit by described change-over circuit and is connected to form path.Change-over circuit described here is equivalent to switch, and the second pin and the 3rd pin to go between with sound channel respectively by switch and be connected.
When the data line interface access MICRO_USB data cable plug of mobile phone, utilize existing detection method, the access of data wire can be detected by the first pin and described testing circuit mobile phone, and send a USB plug access signal to described change-over circuit, described change-over circuit, after receiving described USB plug access signal, disconnects connection that the second pin and the 3rd pin and described two sound channels go between and described second pin and the 3rd pin is connected to form path with two differential signal pins of USB transmission circuit respectively.
When MICRO_USB data cable plug is extracted from described data line interface, utilize existing detection method, can detect extracting of data wire by the first pin and described testing circuit mobile phone, described change-over circuit disconnects the second pin and the 3rd pin and is connected with two differential signal pins of USB transmission circuit and described second pin and the 3rd pin is gone between with described two sound channels respectively and be connected.At this moment, after described headset plug access, the ground pin of earphone is connected with described 5th pin, and the left and right acoustic channels pin of earphone is connected with the second pin and the 3rd pin respectively.The microphone pin of described earphone is connected with described 4th pin.
Two interfaces are incorporated in an interface by the cell phone system of the present embodiment, can increase substantially the utilance of cell phone mainboard, the profile for mobile phone do little, do and thinly provide necessary basis.And the application omits an interface, the cost produced and safeguard can be reduced.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection range of the present utility model.

Claims (7)

1. the data line interface of a mobile terminal, described mobile terminal comprises a USB transmission circuit and a head circuit, it is characterized in that, described data line interface comprises the first pin, second pin, 3rd pin, 5th pin, one change-over circuit and a testing circuit, described first pin is power pins and is connected with described testing circuit, described second pin is gone between with the L channel of head circuit by described change-over circuit and is connected to form path, described 3rd pin is gone between with the R channel of head circuit by described change-over circuit and is connected to form path, described testing circuit is used for sending a USB plug access signal to described change-over circuit, described change-over circuit is for disconnecting the second pin and the 3rd pin and L channel goes between and R channel goes between connection and described second pin and the 3rd pin being connected to form path with two differential signal pins of USB transmission circuit respectively, described 5th pin is connected with the ground wire of mobile terminal.
2. data line interface as claimed in claim 1, it is characterized in that, described 5th pin is connected with described ground wire by a magnetic bead, and be connected a holding wire between described magnetic bead with described 5th pin, described holding wire is connected with the fm broadcast signal receiving terminal of described mobile terminal.
3. data line interface as claimed in claim 1, it is characterized in that, described data line interface also comprises one the 4th pin, and described 4th pin is the microphone electrode input end of mobile terminal.
4. data line interface as claimed in claim 1, it is characterized in that, described mobile terminal comprises circuits for triggering, and described circuits for triggering and a sound channel of head circuit go between and be connected and access signal for sending a headset plug to the control chip of described mobile terminal.
5. a headset plug, it is characterized in that, shape and the form fit as the data line interface in claim 1-4 as described in any one of described headset plug, when headset plug accesses described data line interface, the ground pin of earphone is connected with described 5th pin, and the left and right acoustic channels pin of earphone is connected with the second pin and the 3rd pin respectively.
6. a mobile terminal, is characterized in that, described mobile terminal comprises as the data line interface in claim 1-4 as described in any one.
7. a mobile terminal system, is characterized in that, described mobile terminal system comprises the earphone that mobile terminal as claimed in claim 6 and comprises headset plug as claimed in claim 5.
CN201420867518.0U 2014-12-31 2014-12-31 Data line interface, headset plug, mobile terminal and system Active CN204350072U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420867518.0U CN204350072U (en) 2014-12-31 2014-12-31 Data line interface, headset plug, mobile terminal and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420867518.0U CN204350072U (en) 2014-12-31 2014-12-31 Data line interface, headset plug, mobile terminal and system

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CN204350072U true CN204350072U (en) 2015-05-20

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105703185A (en) * 2016-02-18 2016-06-22 北京小米移动软件有限公司 Signal transmission method, signal transmission device and adapter connecting head
CN105867874A (en) * 2016-03-25 2016-08-17 乐视控股(北京)有限公司 A user device
CN106099502A (en) * 2016-08-22 2016-11-09 宇龙计算机通信科技(深圳)有限公司 A kind of earphone base and terminal
CN106937202A (en) * 2017-05-10 2017-07-07 上海青橙实业有限公司 Headphone interface device and mobile terminal
CN106936046A (en) * 2017-04-27 2017-07-07 上海与德科技有限公司 A kind of cable
US10571508B2 (en) 2016-05-12 2020-02-25 Google Llc Systems and methods of detecting cable connectivity in a smart home environment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105703185A (en) * 2016-02-18 2016-06-22 北京小米移动软件有限公司 Signal transmission method, signal transmission device and adapter connecting head
CN105867874A (en) * 2016-03-25 2016-08-17 乐视控股(北京)有限公司 A user device
US10571508B2 (en) 2016-05-12 2020-02-25 Google Llc Systems and methods of detecting cable connectivity in a smart home environment
CN106099502A (en) * 2016-08-22 2016-11-09 宇龙计算机通信科技(深圳)有限公司 A kind of earphone base and terminal
CN106936046A (en) * 2017-04-27 2017-07-07 上海与德科技有限公司 A kind of cable
CN106937202A (en) * 2017-05-10 2017-07-07 上海青橙实业有限公司 Headphone interface device and mobile terminal

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