CN202841469U - Headset shield - Google Patents
Headset shield Download PDFInfo
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- CN202841469U CN202841469U CN 201220510108 CN201220510108U CN202841469U CN 202841469 U CN202841469 U CN 202841469U CN 201220510108 CN201220510108 CN 201220510108 CN 201220510108 U CN201220510108 U CN 201220510108U CN 202841469 U CN202841469 U CN 202841469U
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Abstract
The utility model discloses a headset shield. The headset shield is connected with a mobile terminal through a wired headset interface of the mobile terminal. The headset shield comprises a connection head (101), a left channel down-lead (102), a right channel down-lead (103), a ground wire (104), a microphone line (105), a signal conversion module (106), a central processing unit (107), a drive module (108), a safety function module (109), a first resistance (R1), a second resistance (R2) and a third resistance (R3), wherein the first resistance (R1) is connected between the left channel down-lead (102) and the ground wire (104), the second resistance (R2) is connected between the right channel down-lead (103) and the ground wire (104), and the third resistance (R3) is connected between the microphone line (105) and the ground wire (104). After being inserted into a headset hole of the mobile terminal, the headset shield can be identified as a traditional headset, and thereby the headset shield can be communicated with the mobile terminal through an audio interface.
Description
Technical field
The utility model relates to information security field, particularly relates to a kind of earphone shield.
Background technology
At present, Web bank has become important component part indispensable in people's daily life.Yet many danger is more also being hidden making life by Web bank.For example, when the attack that is subject to virus or fishing website, and account password is lost or when being cracked, and can cause user's information and fund security, system stability to seriously influence.
For improving the fail safe of Web bank, the user uses USB Key(U shield usually) realize paying by mails.When the user uses Web bank on computers, can connect U shield and computer by USB interface.
The inventor finds that there is following defective at least in prior art in carrying out process of the present utility model:
When the user when portable terminal uses Web bank because portable terminal does not provide USB interface usually, therefore can't ensure with USB Key the safety of Web bank.
The utility model content
The utility model provides a kind of earphone shield, communicates by audio interface and portable terminal, improves the fail safe of mobile platform.
The utility model embodiment provides a kind of earphone shield, described earphone shield is connected with described portable terminal by the wired earphone interface on the portable terminal, described earphone shield comprises joint (101), L channel lead-in wire (102), R channel lead-in wire (103), ground wire (104), microphone lines (105), signal conversion module (106), central processing unit (107), driver module (108), safety function module (109), the first resistance (R1), the second resistance (R2) and the 3rd resistance (R3), wherein, described the first resistance (R1) is connected between described L channel lead-in wire (102) and the described ground wire (104), described the second resistance (R2) is connected between described R channel lead-in wire (103) and the described ground wire (104), and described the 3rd resistance (R3) is connected between described microphone lines (105) and the described ground wire (104);
Described interface (101) is connected with described microphone lines (105) with described L channel lead-in wire (102), described R channel lead-in wire (103), described ground wire (104), for being connected with wired earphone interface on the described portable terminal;
Described signal conversion module (106), be connected with described central processing unit (107), be used for receiving the analog signal from described portable terminal, described analog signal conversion become digital signal, and described digital signal is sent to described central processing unit (107);
Described central processing unit (107), be connected with described safety function module (109), being used for through consultation, agreement will convert data to from the digital signal of described signal conversion module (106), and described data are sent to described safety function module (109), agreement will convert digital signal to from the signed data of described safety function module (109) through consultation, and the digital signal that is converted to is exported to described driver module (108);
Described safety function module (109) be used for to receive the data from described central processing unit (107), to the processing of signing of described data, and the signed data that processing obtains is sent to described central processing unit (107);
Described driver module (108), be connected with described microphone lines (105) with described central processing unit (107), be used for and will convert analog signal to from the digital signal of described central processing unit (107), and by described microphone lines (105) with the analog signal output that is converted to described portable terminal.
The utility model embodiment also provides a kind of earphone shield, described earphone shield is connected with described portable terminal by the wired earphone interface on the portable terminal, described earphone shield comprises joint (101), L channel lead-in wire (102), R channel lead-in wire (103), ground wire (104), microphone lines (105), signal conversion module (106), central processing unit (107), driver module (108), safety function module (109), biasing module (110), the first resistance (R1), the second resistance (R2), the 3rd resistance (R3) and the 4th resistance (R4), wherein, described the first resistance (R1) is connected between described L channel lead-in wire (102) and the described ground wire (104), described the second resistance (R2) is connected between described R channel lead-in wire (103) and the described ground wire (104), described the 3rd resistance (R3) is connected between described microphone lines (105) and the described biasing module (110), and described the 4th resistance (R4) is connected between described microphone lines (105) and the described biasing module (110);
Described interface (101) is connected with described microphone lines (105) with described L channel lead-in wire (102), described R channel lead-in wire (103), described ground wire (104), for being connected with wired earphone interface on the described portable terminal;
Described signal conversion module (106), be connected with described central processing unit (107), be used for receiving the analog signal from described portable terminal, described analog signal conversion become digital signal, and described digital signal is sent to described central processing unit (107);
Described central processing unit (107), be connected with described safety function module (109), being used for through consultation, agreement will convert data to from the digital signal of described signal conversion module (106), and described data are sent to described safety function module (109), agreement will convert digital signal to from the signed data of described safety function module (109) through consultation, and the digital signal that is converted to is exported to described driver module (108);
Described safety function module (109) be used for to receive the data from described central processing unit (107), to the processing of signing of described data, and the signed data that processing obtains is sent to described central processing unit (107);
Described driver module (108), be connected with described microphone lines (105) with described central processing unit (107), be used for and will convert analog signal to from the digital signal of described central processing unit (107), and by described microphone lines (105) with the analog signal output that is converted to described portable terminal;
Described biasing module (110) is connected with described central processing unit (107), is used for receiving the instruction from described central processing unit (107), connects described the 3rd resistance (R3) or connects described the 4th resistance (R4) according to described instruction.
Among the utility model embodiment, be connected the resistance of a resistance in preset range with the ground wire among by the left and right acoustic channels lead-in wire at earphone shield, and between microphone lines and ground wire, be connected the resistance of a resistance in preset range, so that earphone shield in being inserted into the earpiece holes of portable terminal after, can be moved terminal recognition is traditional earphone, thereby earphone shield can be communicated by audio interface and portable terminal, can be when the user uses Web bank by portable terminal, ensure the safety of Web bank with this earphone shield, expanded the range of application of KEY.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of earphone shield among the utility model embodiment;
Fig. 2 is the cut-away view of the safety function module 109 among the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of earphone shield, as shown in Figure 1, comprising: joint 101, L channel lead-in wire 102, R channel lead-in wire 103, ground wire 104, microphone lines 105, signal conversion module 106, central processing unit 107, driver module 108, safety function module 109, biasing module 110, filtration module 111, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4.The span of the first resistance R 1 and the second resistance R 2 is 25 Ω ~ 200 Ω, and the 3rd resistance R 3 is less than 5K Ω, and the 4th resistance R 4 is greater than 5K Ω.
Wherein, joint 101 and L channel lead-in wire 102, R channel lead-in wire 103, ground wire 104 is connected with microphone lines 105, filtration module 111 and L channel lead-in wire 102, R channel lead-in wire 103, ground wire 104 and signal conversion module 106 are connected, signal conversion module 106 is connected with central processing unit 107 by the I/O mouth, central processing unit 107 is connected with safety function module 109 with driver module 108 by the I/O mouth, be connected with biasing module 110 with below-center offset I/O mouth by upper offset I/O mouth, the first resistance R 1 is connected between L channel lead-in wire 102 and the ground wire 104, the second resistance R 2 is connected between R channel lead-in wire 103 and the ground wire 104, the 3rd resistance R 3 is connected between microphone lines 105 and the biasing module 110, the 4th resistance R 4 is connected between microphone lines 105 and the biasing module 110, biasing module 110 also is connected with central processing unit 107, reception connects the 3rd resistance R 3 or the 4th resistance R 4 from the instruction of central processing unit 107 according to the instruction that receives.When the instruction that receives by upper offset I/O mouth from central processing unit 107, biasing module 110 connects power supply VCC, and being connected of disconnection and ground wire 104; When the instruction that receives by below-center offset I/O mouth from central processing unit 107, biasing module 110 connects ground wires 104, and being connected of disconnection and power supply VCC.
When biasing module 110 connected the 3rd resistance R 3 and ground wire 104, the 3rd resistance R 3 connected ground wire 104 and microphone lines 105, and this earphone shield is applicable to the mobile phone with apple series and the ME of Motorola series; When biasing module 110 connected the 4th resistance R 4 and ground wire 104, the 4th resistance R 4 connected ground wire 104 and microphone lines 105, and this earphone shield is applicable to other mobile phones except apple series and the ME of Motorola series; As biasing module 110 connection power supply VCC, this earphone shield is applicable to panel computer.
When joint 101 inserted the earpiece holes of portable terminal, portable terminal had recognized earphone by its inner voicefrequency circuit and driver thereof and has inserted the output interface driven by program voicefrequency circuit of the application call audio frequency in the portable terminal, outputting analog signal; Analog signal is transferred to filtration module 111 by joint 101,111 pairs of these analog signals of filtration module are carried out filtering and are processed, and the analog signal after filtering processed sends to signal conversion module 106, analog signal conversion after signal conversion module 106 is processed filtering becomes digital signal, and this digital signal is sent to central processing unit 107; Central processing unit 107 through consultation agreement converts the digital signal that receives to data, and these data are sent to safety function module 109.Communicate by serial ports between central processing unit 107 and the safety function module 109, safety function module 109 receives the data from central processing unit 107, to the processing of signing of these data, and the signed data that processing obtains is sent to central processing unit 107.
As shown in Figure 2, the cut-away view for the safety function module 109 among the utility model embodiment comprises: micro-control unit 201, display sub-module 202, USB interface 203 and button submodule 204.
Wherein, micro-control unit 201 is connected with display sub-module 202, USB interface 203 and button submodule 204, is used for control display submodule 202, USB interface 203 and button submodule 204.
Display sub-module 202 is used for showing information to the user.
USB interface 203 is used for being connected with the external world, and carries out transfer of data with the external world.
Button submodule 204 is used for obtaining the key information of user's input.
Among the utility model embodiment, be connected the resistance of a resistance in preset range with the ground wire among by the left and right acoustic channels lead-in wire at earphone shield, and between microphone lines and ground wire, be connected the resistance of a resistance in preset range, so that earphone shield in being inserted into the earpiece holes of portable terminal after, can be moved terminal recognition is traditional earphone, thereby earphone shield can be communicated by audio interface and portable terminal, can be when the user uses Web bank by portable terminal, ensure the safety of Web bank with this earphone shield, expanded the range of application of KEY.
Need to prove, in other execution modes of the present utility model, biasing module 110 also can not connect power supply VCC, keep connection status with ground wire 104, central processing unit 107 is connected with biasing module 110 by a biasing I/O mouth, the instruction that biasing module 110 receives from central processing unit 107 connects the 3rd resistance R 3 and ground wire 104 according to the instruction that receives, and perhaps connects the 4th resistance R 4 and ground wire 104.
In other execution modes of the present utility model, earphone shield also can not comprise biasing module 110, but directly is connected the 3rd resistance R 3 between microphone lines 105 and ground wire 104, can realize goal of the invention of the present utility model equally.
In other execution modes of the present utility model, earphone shield also can not comprise filtration module 111, and signal conversion module 106 directly goes between with L channel lead-in wire 102, R channel and 103 is connected with ground wire 104, can realize goal of the invention of the present utility model equally.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (11)
1. earphone shield, it is characterized in that, described earphone shield is connected with described portable terminal by the wired earphone interface on the portable terminal, described earphone shield comprises joint (101), L channel lead-in wire (102), R channel lead-in wire (103), ground wire (104), microphone lines (105), signal conversion module (106), central processing unit (107), driver module (108), safety function module (109), the first resistance (R1), the second resistance (R2) and the 3rd resistance (R3), wherein, described the first resistance (R1) is connected between described L channel lead-in wire (102) and the described ground wire (104), described the second resistance (R2) is connected between described R channel lead-in wire (103) and the described ground wire (104), and described the 3rd resistance (R3) is connected between described microphone lines (105) and the described ground wire (104);
Described interface (101) is connected with described microphone lines (105) with described L channel lead-in wire (102), described R channel lead-in wire (103), described ground wire (104), for being connected with wired earphone interface on the described portable terminal;
Described signal conversion module (106), be connected with described central processing unit (107), be used for receiving the analog signal from described portable terminal, described analog signal conversion become digital signal, and described digital signal is sent to described central processing unit (107);
Described central processing unit (107), be connected with described safety function module (109), being used for through consultation, agreement will convert data to from the digital signal of described signal conversion module (106), and described data are sent to described safety function module (109), agreement will convert digital signal to from the signed data of described safety function module (109) through consultation, and the digital signal that is converted to is exported to described driver module (108);
Described safety function module (109) be used for to receive the data from described central processing unit (107), to the processing of signing of described data, and the signed data that processing obtains is sent to described central processing unit (107);
Described driver module (108), be connected with described microphone lines (105) with described central processing unit (107), be used for and will convert analog signal to from the digital signal of described central processing unit (107), and by described microphone lines (105) with the analog signal output that is converted to described portable terminal.
2. earphone shield as claimed in claim 1 is characterized in that, the span of described the first resistance (R1) and described the second resistance (R2) is 25 Ω ~ 200 Ω.
3. earphone shield as claimed in claim 1 is characterized in that, also comprises:
Filtration module (111), be connected with described L channel lead-in wire (102), described R channel lead-in wire (103), described ground wire (104) and described signal conversion module (106), be used for that the analog signal that receives is carried out filtering and process, and the analog signal after the filtering processing is sent to described signal conversion module (106).
4. earphone shield as claimed in claim 1 is characterized in that, described safety function module (109) comprising: micro-control unit (201), display sub-module (202), USB interface (203) and button submodule (204), wherein,
Described micro-control unit (201), be connected with described display sub-module (202), described USB interface (203) and described button submodule (204), be used for controlling described display sub-module (202), described USB interface (203) and described button submodule (204);
Described display sub-module (202) is used for showing information to the user;
Described USB interface (203) is used for being connected with the external world, and carries out transfer of data with the external world;
Described button submodule (204) is used for obtaining the key information of user's input.
5. earphone shield, it is characterized in that, described earphone shield is connected with described portable terminal by the wired earphone interface on the portable terminal, described earphone shield comprises joint (101), L channel lead-in wire (102), R channel lead-in wire (103), ground wire (104), microphone lines (105), signal conversion module (106), central processing unit (107), driver module (108), safety function module (109), biasing module (110), the first resistance (R1), the second resistance (R2), the 3rd resistance (R3) and the 4th resistance (R4), wherein, described the first resistance (R1) is connected between described L channel lead-in wire (102) and the described ground wire (104), described the second resistance (R2) is connected between described R channel lead-in wire (103) and the described ground wire (104), described the 3rd resistance (R3) is connected between described microphone lines (105) and the described biasing module (110), and described the 4th resistance (R4) is connected between described microphone lines (105) and the described biasing module (110);
Described interface (101) is connected with described microphone lines (105) with described L channel lead-in wire (102), described R channel lead-in wire (103), described ground wire (104), for being connected with wired earphone interface on the described portable terminal;
Described signal conversion module (106), be connected with described central processing unit (107), be used for receiving the analog signal from described portable terminal, described analog signal conversion become digital signal, and described digital signal is sent to described central processing unit (107);
Described central processing unit (107), be connected with described safety function module (109), being used for through consultation, agreement will convert data to from the digital signal of described signal conversion module (106), and described data are sent to described safety function module (109), agreement will convert digital signal to from the signed data of described safety function module (109) through consultation, and the digital signal that is converted to is exported to described driver module (108);
Described safety function module (109) be used for to receive the data from described central processing unit (107), to the processing of signing of described data, and the signed data that processing obtains is sent to described central processing unit (107);
Described driver module (108), be connected with described microphone lines (105) with described central processing unit (107), be used for and will convert analog signal to from the digital signal of described central processing unit (107), and by described microphone lines (105) with the analog signal output that is converted to described portable terminal;
Described biasing module (110) is connected with described central processing unit (107), is used for receiving the instruction from described central processing unit (107), connects described the 3rd resistance (R3) or connects described the 4th resistance (R4) according to described instruction.
6. earphone shield as claimed in claim 5 is characterized in that, the span of described the first resistance (R1) and described the second resistance (R2) is 25 Ω ~ 200 Ω.
7. earphone shield as claimed in claim 5 is characterized in that, described the 3rd resistance (R3) is less than 5K Ω, and described the 4th resistance (R4) is greater than 5K Ω.
8. earphone shield as claimed in claim 5 is characterized in that, also comprises:
Filtration module (111), be connected with described L channel lead-in wire (102), described R channel lead-in wire (103), described ground wire (104) and described signal conversion module (106), be used for that the analog signal that receives is carried out filtering and process, and the analog signal after the filtering processing is sent to described signal conversion module (106).
9. earphone shield as claimed in claim 5 is characterized in that, when described central processing unit (107) by a biasing I/O mouth and described biasing module (110) when being connected, described biasing module (110) also is connected with described ground wire (104).
10. earphone shield as claimed in claim 5, it is characterized in that, when described central processing unit (107) by upper offset I/O mouth and below-center offset I/O mouth and described biasing module (110) when being connected, if described biasing module (110) receives instruction from described central processing unit (107) by described upper offset I/O mouth, then described biasing module (110) connection power supply VCC, and disconnection is connected with described ground wire (104); If described biasing module (110) receives instruction from described central processing unit (107) by described below-center offset I/O mouth, then described biasing module (110) connects described ground wire (104), and being connected of disconnection and described power supply VCC.
11. earphone shield as claimed in claim 5 is characterized in that, described safety function module (109) comprising: micro-control unit (201), display sub-module (202), USB interface (203) and button submodule (204), wherein,
Described micro-control unit (201), be connected with described display sub-module (202), described USB interface (203) and described button submodule (204), be used for controlling described display sub-module (202), described USB interface (203) and described button submodule (204);
Described display sub-module (202) is used for showing information to the user;
Described USB interface (203) is used for being connected with the external world, and carries out transfer of data with the external world;
Described button submodule (204) is used for obtaining the key information of user's input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510108 CN202841469U (en) | 2012-09-27 | 2012-09-27 | Headset shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510108 CN202841469U (en) | 2012-09-27 | 2012-09-27 | Headset shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841469U true CN202841469U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220510108 Expired - Lifetime CN202841469U (en) | 2012-09-27 | 2012-09-27 | Headset shield |
Country Status (1)
| Country | Link |
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| CN (1) | CN202841469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103581798A (en) * | 2013-08-30 | 2014-02-12 | 天地融科技股份有限公司 | Method and device for outputting information |
| US10524039B2 (en) | 2018-05-15 | 2019-12-31 | Google Llc | Enhanced digital headsets |
-
2012
- 2012-09-27 CN CN 201220510108 patent/CN202841469U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103581798A (en) * | 2013-08-30 | 2014-02-12 | 天地融科技股份有限公司 | Method and device for outputting information |
| US10524039B2 (en) | 2018-05-15 | 2019-12-31 | Google Llc | Enhanced digital headsets |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |