CN202696710U - System using impedance to identify peripheral equipment - Google Patents
System using impedance to identify peripheral equipment Download PDFInfo
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- CN202696710U CN202696710U CN201220212773.2U CN201220212773U CN202696710U CN 202696710 U CN202696710 U CN 202696710U CN 201220212773 U CN201220212773 U CN 201220212773U CN 202696710 U CN202696710 U CN 202696710U
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Abstract
The utility model relates to system using impedance to identify peripheral equipment. The system comprises a terminal device and peripheral equipment connected with the terminal device through a data cable, wherein the terminal device comprises a first interface; the peripheral equipment comprises a second interface, and the data cable comprises a pair of grounding resistors; and the terminal device further comprises an analog switch, which is connected with the first interface, used for detecting the resistance values of the grounding resistors of the data cable, and used for switching a switch channel to a corresponding application module according to the detecting result. The system provided by the utility model has the benefit that as the analog switch is used for switching the switch channel to the corresponding application module according to the detecting result, the control by a main control processor can be omitted, so that the circuit damage risk caused by mistaken control of the main control processor can be eliminated.
Description
Technical field
The utility model relates to the peripheral hardware automatic identification technology, more particularly, relates to the system that utilizes impedance that peripheral hardware is identified.
Background technology
Along with the function of terminal equipment such as mobile phone etc. is more and more abundanter, the peripheral hardware that needs is also more and more, be exactly charger, USB(USB such as the most frequently used peripheral hardware of mobile phone) and earphone etc., because the usable interface resource of the terminal equipments such as mobile phone is few, the increase of peripheral hardware may cause interface resource not enough, and interface of each peripheral hardware also can cause the waste of circuit and the increase of cost.
Thereby in order to make circuit can be fully utilized and reduce cost, generally adopt the scheme of the public interface of a plurality of peripheral hardwares, thus reduce the interface resource that the unit peripheral hardware need to take, reduce the circuit waste.Existing technical scheme be terminal the USB connector interface signal by an analog switch realize peripheral hardware and main control processor and and each functional module between transfer of data, when certain peripheral hardware of needs is communicated by letter with inner function module, select the corresponding interface handoff functionality by the control desk (UI interface, combination button etc.) at main control processor, main control processor carries out the switching of data channel by the control signal switching analoging switch.Use this scheme to have following defective: the switching of analog switch needs main control processor control, complicated operation, and exist handoff error to cause damaging the risk of circuit.
The utility model content
The technical problems to be solved in the utility model is, switching for the analog switch of prior art needs main control processor control, complicated operation, and exist handoff error to cause damaging the defective of the risk of circuit, a kind of a kind of system that utilizes impedance that peripheral hardware is identified that solves above defective is provided.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of system that utilizes impedance that peripheral hardware is identified, the peripheral hardware that described recognition system comprises terminal equipment, is connected with described terminal equipment by data wire, described terminal equipment comprises first interface, described peripheral hardware comprises the second interface, described data wire comprises a resistance to earth, and described terminal equipment also comprises and connects for detection of the resistance of the resistance to earth of described data wire with described first interface and the switch passage is switched to the analog switch of corresponding application module according to testing result.
In the system that utilizes impedance that peripheral hardware is identified described in the utility model, described application module comprises audio processing modules, video processing module or charging process module.
In the system that utilizes impedance that peripheral hardware is identified described in the utility model, described terminal equipment also comprises the main control processor that is connected with described analog switch, is used for resistance to earth resistance corresponding to configuration different peripheral.
In the system that utilizes impedance that peripheral hardware is identified described in the utility model, described terminal equipment is mobile phone.
In the system that utilizes impedance that peripheral hardware is identified described in the utility model, described peripheral hardware is charger., earplug or video player.
The utility model has also been constructed the another kind of system that utilizes impedance that peripheral hardware is identified, the peripheral hardware that described recognition system comprises terminal equipment, is connected with described terminal equipment by data wire, described terminal equipment comprises first interface, described peripheral hardware comprises the second interface, the ID detection terminal of described the second interface is by resistance to earth ground connection, and described terminal equipment also comprises by the second interface connection of described first interface and data wire and described peripheral hardware and detects the resistance of described resistance to earth and the switch passage is switched to the analog switch of corresponding application module according to testing result.
Utilize in the system that impedance identifies peripheral hardware described in the utility model, application module comprises audio processing modules, video processing module or charging process module.
Utilize in the system that impedance identifies peripheral hardware described in the utility model, described terminal equipment also comprises the main control processor that is connected with described analog switch, is used for identification resistance corresponding to configuration different peripheral.
Utilize in the system that impedance identifies peripheral hardware described in the utility model, described terminal equipment is mobile phone.
Utilize in the system that impedance identifies peripheral hardware described in the utility model, described peripheral hardware is charger, earplug or video player.
Implement the system that utilizes impedance that peripheral hardware is identified of the present utility model, have following beneficial effect: analog switch switches to corresponding application module according to the resistance of the resistance to earth that detects with the switch passage, do not need main control processor control, can eliminate the circuit damage risk that causes because main control processor control is wrong.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the first embodiment that utilizes the system that impedance identifies peripheral hardware of the present utility model;
Fig. 2 is the second embodiment that utilizes the system that impedance identifies peripheral hardware of the present utility model.
Embodiment
In order to make the purpose of this utility model clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, in the first embodiment that utilizes the system that impedance identifies peripheral hardware of the present utility model, comprise terminal equipment 100, pass through the peripheral hardware 300 that data wire 200 is connected with terminal equipment 100, terminal equipment 100 comprises analog switch 13, reach the first interface 11, the application module 12 that are connected respectively with analog switch 13, peripheral hardware 300 comprises the second interface 31, and data wire 200 comprises a resistance to earth R1.The analog switch 13 of terminal equipment 100 is connected with data wire 200 by first interface 11, for detection of the resistance of the resistance to earth R1 of data wire 200 and the switch passage is switched to the application module 12 of correspondence according to testing result.The end of resistance to earth R1 is connected other end ground connection with the ID detection terminal of first interface 11.When concrete the use, arrange different peripheral hardwares and select different resistance to earth resistances.When the resistance that detects the resistance to earth R1 of data wire 200 when analog switch 13 is the agreement scope, the switch passage is switched to corresponding application module 12, realize the automatic identification to peripheral hardware.In specific implementation process, application module 12 comprises audio processing modules 121, video processing module 122, charging process module 123 and other application module, terminal equipment 100 switches to analog switch 13 corresponding application module automatically according to the peripheral hardware of identification, realizes data communication.In specific implementation process, first interface 11 can be USB interface, RS232 interface, or its connecting interface.
Utilize in the system that impedance identifies peripheral hardware at this, terminal equipment 100 also comprises the main control processor 14 that is connected with analog switch 13, is used for the corresponding different resistance to earth resistance of data wire of configuration and different peripheral 300 connections.The control signal of analog switch 13 is optional, and when not adopting control signal, the resistance to earth of each passage respective data lines that analog switch 13 is supported is fixed; When adopting control signal, the resistance to earth that each passage that analog switch 13 is supported is corresponding can be according to user's request by main control processor 14 configurations.
In the present embodiment, terminal equipment 100 is mobile phones, also can be the terminal electronic products such as computer, video camera.
In the present embodiment, peripheral hardware 300 is charger, earplug, video player etc.
As shown in Figure 2, in the second embodiment that utilizes the system that impedance identifies peripheral hardware of the present utility model, comprise terminal equipment 100, pass through the peripheral hardware 300 that data wire 200 is connected with terminal equipment 100, terminal equipment 100 comprises analog switch 13, reach the first interface 11, the application module 12 that are connected respectively with analog switch 13, peripheral hardware 300 comprises that the ID detection terminal of the second interface 31, the second interfaces 31 is by resistance to earth R1 ground connection.The analog switch 13 of terminal equipment 100 is by first interface 11 and data wire 200 connects with the second interface 31 of peripheral hardware 300 and the resistance of detection resistance to earth R1 switches to corresponding application module 12 according to testing result with the switch passage again.When concrete the use, arrange different peripheral hardwares and select different resistance to earth resistances.When the resistance that detects the resistance to earth R1 of peripheral hardware 300 when analog switch 13 is the agreement scope, the switch passage is switched to corresponding application module 12, realize the automatic identification to peripheral hardware.In specific implementation process, application module 12 comprises audio processing modules 121, video processing module 122, charging process module 123 and other application module, terminal equipment 100 switches to analog switch 13 corresponding application module automatically according to the peripheral hardware of identification, realizes data communication.In specific implementation process, first interface 11 can be USB interface, RS232 interface, or its connecting interface.
Utilize in the system that impedance identifies peripheral hardware at this, terminal equipment 100 also comprises the main control processor 14 that is connected with analog switch 13, is used for identification resistance corresponding to configuration different peripheral 300.The control signal of analog switch 13 is optional, and when not adopting control signal, the resistance to earth of the corresponding peripheral hardware 300 of each passage that analog switch 13 is supported is fixed; When adopting control signal, the resistance to earth of the corresponding peripheral hardware 300 of each passage that analog switch 13 is supported can be according to user's request by main control processor 14 configurations.
In the present embodiment, terminal equipment 100 is mobile phones, also can be the terminal electronic products such as computer, video camera.
In the present embodiment, peripheral hardware 300 is charger, earplug, video player etc.
Use the system that utilizes impedance that peripheral hardware is identified of the present utility model, analog switch 13 switches to corresponding application module 12(such as audio processing modules 121, video processing module 122 or charging process module 123 according to the resistance of the resistance to earth (resistance to earth in the data wire or the resistance to earth in the peripheral hardware) that detects with the switch passage), do not need main control processor control; Also can eliminate the circuit damage risk that causes because main control processor control is wrong.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. system that utilizes impedance that peripheral hardware is identified, described recognition system comprises terminal equipment (100), the peripheral hardware (300) that is connected with described terminal equipment (100) by data wire (200), described terminal equipment (100) comprises first interface (11), described peripheral hardware (300) comprises the second interface (31), it is characterized in that, described data wire (200) comprises a resistance to earth (R1), and described terminal equipment (100) also comprises and connects for detection of the resistance of the resistance to earth (R1) of described data wire (200) with described first interface (11) and the switch passage is switched to the analog switch (13) of corresponding application module (12) according to testing result.
2. the system that utilizes impedance that peripheral hardware is identified according to claim 1 is characterized in that, described application module (12) comprises audio processing modules (121), video processing module (122) or charging process module (123).
3. the system that utilizes impedance that peripheral hardware is identified according to claim 2, it is characterized in that, described terminal equipment (100) also comprises the main control processor (14) that is connected with described analog switch (13), is used for resistance to earth resistance corresponding to configuration different peripheral (300).
4. the system that utilizes impedance that peripheral hardware is identified according to claim 3 is characterized in that, described terminal equipment (100) is mobile phone.
5. the system that utilizes impedance that peripheral hardware is identified according to claim 4 is characterized in that, described peripheral hardware (300) is charger, earplug or video player.
6. system that utilizes impedance that peripheral hardware is identified, described recognition system comprises terminal equipment (100), the peripheral hardware (300) that is connected with described terminal equipment (100) by data wire (200), described terminal equipment (100) comprises first interface (11), described peripheral hardware (300) comprises the second interface (31), it is characterized in that, the ID detection terminal of described the second interface (31) is by resistance to earth (R1) ground connection, and described terminal equipment (100) also comprises by described first interface (11) and data wire (200) and connects with second interface (31) of described peripheral hardware (300) and detect the resistance of described resistance to earth (R1) and the switch passage is switched to the analog switch (13) of corresponding application module (12) according to testing result.
7. the system that utilizes impedance that peripheral hardware is identified according to claim 6 is characterized in that, described application module (12) comprises audio processing modules (121), video processing module (122) or charging process module (123).
8. the system that utilizes impedance that peripheral hardware is identified according to claim 7, it is characterized in that, described terminal equipment (100) also comprises the main control processor (14) that is connected with described analog switch (11), is used for identification resistance corresponding to configuration different peripheral (300).
9. the system that utilizes impedance that peripheral hardware is identified according to claim 8 is characterized in that, described terminal equipment (100) is mobile phone.
10. the system that utilizes impedance that peripheral hardware is identified according to claim 9 is characterized in that, described peripheral hardware (300) is charger, earplug or video player.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220212773.2U CN202696710U (en) | 2012-05-11 | 2012-05-11 | System using impedance to identify peripheral equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220212773.2U CN202696710U (en) | 2012-05-11 | 2012-05-11 | System using impedance to identify peripheral equipment |
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| CN202696710U true CN202696710U (en) | 2013-01-23 |
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| CN201220212773.2U Expired - Lifetime CN202696710U (en) | 2012-05-11 | 2012-05-11 | System using impedance to identify peripheral equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324293A (en) * | 2013-07-16 | 2013-09-25 | 锤子科技（北京）有限公司 | Display control method and device of display interface of mobile terminal |
| CN104113805A (en) * | 2014-07-28 | 2014-10-22 | 瑞声光电科技(常州)有限公司 | Loudspeaker system and driving method thereof |
| CN105280202A (en) * | 2015-10-23 | 2016-01-27 | 广东欧珀移动通信有限公司 | Method and system for adjusting wired loudspeaker box playing parameters as well as mobile terminal |
| CN106664479A (en) * | 2014-08-29 | 2017-05-10 | 华为技术有限公司 | Method for improving performance of speaker, and terminal device |
| CN108009116A (en) * | 2017-12-22 | 2018-05-08 | 努比亚技术有限公司 | MicroUSB interface circuits and its mobile terminal |
| CN111159084A (en) * | 2019-12-27 | 2020-05-15 | 惠州Tcl移动通信有限公司 | Intelligent device |
-
2012
- 2012-05-11 CN CN201220212773.2U patent/CN202696710U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324293A (en) * | 2013-07-16 | 2013-09-25 | 锤子科技（北京）有限公司 | Display control method and device of display interface of mobile terminal |
| WO2015007112A1 (en) * | 2013-07-16 | 2015-01-22 | 锤子科技（北京）有限公司 | Display control method and apparatus for display interface of mobile terminal |
| CN103324293B (en) * | 2013-07-16 | 2016-05-04 | 锤子科技（北京）有限公司 | The display control method of mobile terminal display interface and device |
| US10908798B2 (en) | 2013-07-16 | 2021-02-02 | Beijing Bytedance Network Technology Co Ltd | Display control method and apparatus for display interface of mobile terminal |
| CN104113805A (en) * | 2014-07-28 | 2014-10-22 | 瑞声光电科技(常州)有限公司 | Loudspeaker system and driving method thereof |
| CN106664479A (en) * | 2014-08-29 | 2017-05-10 | 华为技术有限公司 | Method for improving performance of speaker, and terminal device |
| CN105280202A (en) * | 2015-10-23 | 2016-01-27 | 广东欧珀移动通信有限公司 | Method and system for adjusting wired loudspeaker box playing parameters as well as mobile terminal |
| CN108009116A (en) * | 2017-12-22 | 2018-05-08 | 努比亚技术有限公司 | MicroUSB interface circuits and its mobile terminal |
| CN108009116B (en) * | 2017-12-22 | 2021-01-05 | 努比亚技术有限公司 | MicroUSB interface circuit and mobile terminal thereof |
| CN111159084A (en) * | 2019-12-27 | 2020-05-15 | 惠州Tcl移动通信有限公司 | Intelligent device |
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| 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: 20130123 |