CN102819501B - Electronic equipment and data interface type detection method - Google Patents
Electronic equipment and data interface type detection method Download PDFInfo
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- CN102819501B CN102819501B CN201210299625.3A CN201210299625A CN102819501B CN 102819501 B CN102819501 B CN 102819501B CN 201210299625 A CN201210299625 A CN 201210299625A CN 102819501 B CN102819501 B CN 102819501B
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Abstract
The invention provides electronic equipment which comprises an interface slot, at least two interface modules, an integrated circuit (IC) card interface module, an audio interface module and an interface type detection module; the interface modules are respectively connected with the D+ and the D- pins of the interface slot and are in different interface types; the IC card interface module carries out data communication with external equipment with one of the D+ and the D- pins as an input/output (I/O) pin and the other one of the D+ and the D- pins as an RST pin; the audio interface module respectively takes the D+ and the D- pins as a reference signal pin and an audio signal pin; and the interface type detection module is connected with the D- pin, and is used for detecting a level waveform output by the D- pin after power-on, judging the interface type which is used by the external equipment which is connected with the electronic equipment through the interface slot according to the detected level waveform, and outputting an interface type judging result. Due to the adoption of a data interface type detection method, a more-in-one interface slot can be arranged in the electronic equipment, the interface slot is matched with a corresponding data cable, and can communicate with any one piece of external equipment in external universal serial bus (USB) interface equipment, IC card interface equipment and audio interface equipment.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to the detection method of a kind of electronic equipment, data interface type.
Background technology
Along with non-cash transaction, Web bank, online payment prevailing gradually, IC-card, for the generation that signs electronically and checking, encryption, deciphering electric signing tools (as, USBKEY), also popularize for generating the safety information products such as the dynamic password generating device (e.g., OTP token) of dynamic password thereupon.
The different safety information products such as IC-card, USBKEY, OTP token possess different functions, are applicable to different application scenarios, carry for the ease of user, occurred the safety information product of integrated several functions in the market.In order to make safety information product can with the transaction terminal such as PC, mobile communication terminal with the use of, safety information product needs usually arrange various different interface slot/socket, such as, for with PC with the use of USB interface slot, for mobile communication terminal with the use of audio sockets etc.
Electronic product (such as, the safety information product) cost being provided with multiple interfaces slot/socket in prior art is higher, and volume is comparatively large, is not easy to user and uses and carry.
Summary of the invention
Technical matters to be solved by this invention overcomes the deficiencies in the prior art, provides a kind of and realize the electronic product of polytype interface communication and the detection method of data interface type by an interface slot.
The object of the invention is to be achieved through the following technical solutions:
One aspect of the present invention provides a kind of electronic equipment, comprise: interface slot, the interface module of at least two different interface types be connected with D+ with the D-pin of described interface slot respectively, two in following interface module are at least comprised: the usb interface module described D+ and D-pin being carried out data communication as usb data pin and external unit in described electronic equipment, using in described D+ and D-pin as I/O pin, another carries out the IC-card interface module of data communication as RST pin and external unit, respectively using described D+ and D-pin as the Audio interface block with reference to signal pins and sound signal pin, also comprise in described electronic equipment: interface type detection module, described interface type detection module is connected with described D-pin, for detecting the level waveforms that described D-pin exports after the power-up, the interface type that the external unit be connected with described electronic equipment by described interface slot is used is judged according to the level waveforms detected, and output interface type identification result, to make described electronic equipment by differentiating that the interface module that result is corresponding and external unit carry out data communication with described interface type.
In addition, described Audio interface block is comprised in described interface module; When described interface type detection module detects that after powering on and stablize level that described D-pin exports is the level of change, judge that interface type that the external unit be connected with described electronic equipment uses is as audio interface.
In addition, described usb interface module is comprised in described interface module; When detecting that the level that described D-pin exports is lasting low level in the T millisecond of described interface type detection module after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface.
In addition, described IC-card interface module is comprised in described interface module; When detecting that the level that described D-pin exports is lasting high level in the T millisecond of described interface type detection module after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as IC-card interface.
In addition, comprise in described Audio interface block: audio frequency receiver module and signal transmitting module; Described audio frequency receiver module is connected with D-pin with described D+ pin, using described D-pin as sound signal pin, using D+ pin as reference signal pins; Described signal transmitting module is connected with described reference signal pin, sends signal by described reference signal pin external device.
In addition, the span of described T is: 40≤T≤120.
The present invention provides on the other hand a kind of detection method of data interface type, for detecting the interface type that the external unit that is connected with D-pin with the D+ pin of the interface slot of electronic equipment uses; The method comprises: the interface type judgement unit in described electronic equipment is thereon after electricity, the level waveforms that the D-pin of described electronic equipment interfaces slot exports is detected, judges according to the level waveforms detected the interface type that the external unit be connected with described electronic equipment by described interface slot is used.
In addition, described interface type at least comprises: USB interface, IC-card interface, audio interface.
In addition, when described interface type judgement unit detects that after powering on and stablize level that described D-pin exports is the level of change, judge that interface type that the external unit be connected with described electronic equipment uses is as audio interface; Otherwise judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface or IC-card interface; Wherein, when the interface type that external unit uses is for audio interface, using described D+ and D-pin as reference signal pin and sound signal pin.
In addition, when detecting that the level that described D-pin exports is lasting low level in the T millisecond that described interface type judgement unit presets after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface; Otherwise judge that interface type that the external unit be connected with described electronic equipment uses is as audio interface or IC-card interface; Wherein, when the interface type that external unit uses is for audio interface, using described D+ and D-pin as reference signal pin and sound signal pin.
In addition, when detecting that the level that described D-pin exports is lasting high level in the T millisecond that described interface type judgement unit presets after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as IC-card interface; Otherwise judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface or audio interface; Wherein, when the interface type that external unit uses is for audio interface, using described D+ and D-pin as reference signal pin and sound signal pin.
In addition, the span of described T is: 40≤T≤120.
Adopt the detection method of data interface type of the present invention, the interface slot of an All-in-One can be set in the electronic device, this interface slot and corresponding data line with the use of, can communicate with any one external unit in audio interface device with the USB interface equipment of outside, IC-card interfacing equipment, and electronic equipment of the present invention can identify the interface type that the current external unit communicated with uses automatically.
Adopt technical scheme of the present invention, the quantity of interface slot can be reduced, reduce the production cost of electronic equipment, and reduce the volume of electronic equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of electronic equipment embodiment of the present invention;
Fig. 2 is the structural representation of the Audio interface block in electronic equipment embodiment of the present invention;
Fig. 3 is in the present invention, the waveform schematic diagram of D-pin output level when adopting different interface types.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or quantity or position.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Core of the present invention is, detect as the RST pin of IC-card interface or IO pin and the waveform of level that exports as the D-pin that sound signal pin (pin corresponding to L channel, R channel, monophony or mixed layer sound channel sound signal) uses, the result according to detecting judges that current external equipment carries out with electronic equipment of the present invention the adopted interface type that communicates.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of electronic equipment embodiment of the present invention; As shown in Figure 1, comprise in this electronic equipment: interface slot, interface type detection module, interface module (such as, IC-card interface module, usb interface module, Audio interface block), one or more safety function module (such as, IC-card security module, electronic module for signing mane, dynamic password generation module).
Comprise in interface slot: VBUS, D-, D+, GND, the pins such as shell wiring (S1 ~ S4).
IC-card interface module, be connected with D+ with D-pin, and with interface type detection module and one or more functional module (such as, IC-card security module) be connected, for the interface type result of determination that receiving interface type detection module or functional module export, when the interface type result of determination received is current external unit use IC-card interface and electronic equipment carries out data communication, IC-card interface module enters duty, between functional module and external unit, carry out the data communication meeting IC-card interface specification by D+ and D-pin.
In the present embodiment, IC-card interface module and external unit can using the I/O pin of D+ pin as IC-card interface specification, and D-pin is carried out data communication as the RST pin of IC-card interface specification.
Usb interface module, be connected with D+ with D-pin, and with interface type detection module and one or more functional module (such as, electronic module for signing mane) be connected, for receiving interface type detection module, or the interface type result of determination that functional module exports, when the interface type result of determination received is current external unit use USB interface and electronic equipment carries out data communication, usb interface module enters duty, carry out by D+ and D-pin the data communication (using by the usb data pin of D+ and D-pin as standard) meeting USB interface specification between functional module and external unit.
Audio interface block, be connected with D+ with D-pin, and with interface type detection module and one or more functional module (such as, dynamic password generation module) be connected, for the interface type result of determination that receiving interface type detection module or functional module export, when the interface type result of determination received is current external unit use audio interface and electronic equipment carries out data communication, Audio interface block enters duty, between functional module and external unit, carry out the data communication meeting audio interface specification by D+ and D-pin.
In the present embodiment, Audio interface block and external unit can using D-pin as sound signal pin (pins corresponding to L channel, R channel, monophony or mixed layer sound channel sound signal), using D+ pin as grounding pin (or being called reference signal pin).
In addition, as shown in Figure 2, in the present embodiment, Audio interface block can also be further divided into: audio frequency receiver module and signal transmitting module.
Wherein, audio frequency receiver module is connected with D+ with D-pin, and be connected with one or more functional module, using D-pin as sound signal pin, D+ pin is received the sound signal of external unit transmission as grounding pin (or being called reference signal pin), and sound signal is sent to coupled functional module.
Signal transmitting module is connected with D+ pin, and is connected with one or more functional module, for the command signal that receiving module sends, and it is sent to external unit by D+ pin.
Safety function module, be connected with the one or more interface modules in IC-card interface module, usb interface module, Audio interface block, for carrying out data communication by interface module and external unit, and complete corresponding security function (such as, encryption and decryption functions, signature function, generation dynamic password function).
Safety function module can be: one or more in IC-card security module, electronic module for signing mane, dynamic password generation module.
Interface type detection module, be connected with D-pin, and be connected with interface modules such as IC-card interface module, usb interface module and Audio interface block, the data interface type judging that the external unit be connected with electronic equipment of the present invention uses is detected by the level (electric signal) to D-pin, and output interface type decision result.
Fig. 3 is the waveform schematic diagram of D-pin output level when adopting different interface types; As shown in Figure 3:
When using USB interface to carry out data communication with external unit, in the T millisecond of electronic equipment/interface type detection module after powering on and stablize, detect that D-pin exports the low level continued;
When using IC-card interface to carry out data communication with external unit, in the T millisecond of electronic equipment/interface type detection module after powering on and stablize, detect that D-pin exports the high level continued;
The value of above-mentioned T also can according to the demand self-defining of manufacturer.Usually can make: 40 milliseconds≤T≤120 millisecond.Usual T≤100 millisecond.
According to the difference of concrete adopted chip/circuit, the stable required time that powers on is different, those skilled in the art, after each components/circuits of selected equipment, can adopt arbitrary detection mode of the prior art to determine to power on the stable required concrete time (be generally 10 milliseconds ~ 100 milliseconds not etc.).
When using audio interface to carry out data communication with external unit, interface type detection module is powering on and after stablizing, is detecting that the level that D-pin exports is in variable condition (such as, comprise AC compounent, DC component is in variable condition etc.).
In the present embodiment, according to the different wave of D-pin output level, interface type detection module is adopted and is judged interface type with the following method:
When in the T millisecond of electronic equipment/interface type detection module after powering on and stablize, when detecting that the level that D-pin exports is lasting low level, determining interface type is USB interface;
When electronic equipment/interface type detection module detects that the level that D-pin exports is lasting high level in T millisecond after powering on and stablize, determining interface type is IC-card interface;
When interface type detection module is powering on and after stablizing (such as, power on and in T millisecond after stablizing), when detecting that the level that D-pin exports is in variable condition, determining interface type is audio interface.
Interface type detection module can one of in the following way output interface type decision result:
Mode one: simultaneously export result of determination to interface modules such as IC-card interface module, usb interface module, Audio interface block, by IC-card interface module, usb interface module, Audio interface block according to the particular content of the result of determination received (such as, " 0 " represents IC-card interface, " 1 " represents USB interface, " 2 " represent audio interface) judge the interface type of current use, and and then judge whether to enter duty.
Mode two: only export result of determination to the interface module corresponding to result of determination, the interface module receiving this result of determination enters duty.Such as, using the enabling signal preset as the result of determination exported, the interface module receiving this enabling signal enters duty.
Mode three: export result of determination to functional modules such as IC-card security module, electronic module for signing mane, dynamic password generation modules, by functional module according to the particular content of the result of determination received (such as, " 1 " represents IC-card interface, " 2 " represent USB interface, " 3 " represent audio interface) judge the interface type of current use, and and then send result of determination (such as, sending an enabling signal), to start the transmission of the corresponding interface data to corresponding interface module.
According to ultimate principle of the present invention, above-described embodiment can also have multiple variation pattern, such as:
(1) IC-card interface module and external unit can using the I/O pin of D-pin as IC-card interface specification, and D+ pin is carried out data communication as the RST pin of IC-card interface specification.
(2) two in following interface module can only be comprised in electronic equipment of the present invention: IC-card interface module, usb interface module, Audio interface block.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalency thereof.
Claims (13)
1. an electronic equipment, comprises: interface slot, and the interface module of at least two different interface types be connected with D+ with the D-pin of described interface slot respectively, is characterized in that:
Two in following interface module are at least comprised: the usb interface module described D+ and D-pin being carried out data communication as usb data pin and external unit in described electronic equipment, using in described D+ and D-pin as I/O pin, another to carry out the IC-card interface module of data communication as RST pin and external unit, respectively using described D+ and D-pin as the Audio interface block with reference to signal pins and sound signal pin;
Also comprise in described electronic equipment: interface type detection module;
Described interface type detection module is connected with described D-pin, for detecting the level waveforms that described D-pin exports after the power-up, the interface type that the external unit be connected with described electronic equipment by described interface slot is used is judged according to the level waveforms detected, and output interface type identification result, to make described electronic equipment by differentiating that the interface module that result is corresponding and external unit carry out data communication with described interface type; Further, described interface type detection module adopts following either type to carry out the output of described interface type differentiation result and the startup of data transmission:
Described interface type detection module exports described interface type differentiate result to described IC-card interface module, described usb interface module, described Audio interface block simultaneously, differentiated the particular content of result according to the described interface type received by described IC-card interface module, described usb interface module, described Audio interface block, judge the interface type of current use, and and then judge whether to enter duty; Or,
Described interface type detection module exports described interface type differentiate result to IC-card security module, electronic module for signing mane, dynamic password generation module, differentiate that the particular content of result judges the interface type of current use by described IC-card security module, described electronic module for signing mane, described dynamic password generation module according to the described interface type received, and and then to corresponding interface module send described interface type differentiate result, to start the transmission of the corresponding interface data;
Also comprise in described electronic equipment: multiple safety function module, described multiple safety function module is: multiple in IC-card security module, electronic module for signing mane, dynamic password generation module.
2. electronic equipment as claimed in claim 1, is characterized in that,
Described Audio interface block is comprised in described interface module;
When described interface type detection module detects that after powering on and stablize level that described D-pin exports is the level of change, judge that interface type that the external unit be connected with described electronic equipment uses is as audio interface.
3. electronic equipment as claimed in claim 1, is characterized in that,
Described usb interface module is comprised in described interface module;
When detecting that the level that described D-pin exports is lasting low level in the T millisecond of described interface type detection module after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface.
4. electronic equipment as claimed in claim 1, is characterized in that,
Described IC-card interface module is comprised in described interface module;
When detecting that the level that described D-pin exports is lasting high level in the T millisecond of described interface type detection module after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as IC-card interface.
5. electronic equipment as claimed in claim 1 or 2, is characterized in that,
Comprise in described Audio interface block: audio frequency receiver module and signal transmitting module;
Described audio frequency receiver module is connected with D-pin with described D+ pin, using described D-pin as sound signal pin, using D+ pin as reference signal pins;
Described signal transmitting module is connected with described reference signal pin, sends signal by described reference signal pin external device.
6. the electronic equipment as described in claim arbitrary in claim 3 to 4, is characterized in that,
The span of described T is: 40≤T≤120.
7. a detection method for data interface type, for detecting the interface type that the external unit that is connected with D-pin with the D+ pin of the interface slot of electronic equipment uses; It is characterized in that, the method comprises:
Interface type judgement unit in described electronic equipment is thereon after electricity, the level waveforms that the D-pin of described electronic equipment interfaces slot exports is detected, judges according to the level waveforms detected the interface type that the external unit be connected with described electronic equipment by described interface slot is used; Described interface type is exported and start data transmission, wherein, described interface type exports and start data transmit step adopt following either type:
Described interface type judgement unit is simultaneously to IC-card interface module, usb interface module, Audio interface block output interface type identification result, differentiated the particular content of result according to the interface type received by described IC-card interface module, described usb interface module, described Audio interface block, judge the interface type of current use, and and then judge whether to enter duty; Or,
Described interface type judgement unit is to IC-card security module, electronic module for signing mane, dynamic password generation module output interface type identification result, differentiate that the particular content of result judges the interface type of current use by described IC-card security module, described electronic module for signing mane, described dynamic password generation module according to the described interface type received, and and then to corresponding interface module send described interface type differentiate result, to start the transmission of the corresponding interface data;
Also comprise in described electronic equipment: multiple safety function module, described multiple safety function module is: multiple in IC-card security module, electronic module for signing mane, dynamic password generation module.
8. detection method as claimed in claim 7, it is characterized in that, described interface type at least comprises: USB interface, IC-card interface, audio interface.
9. detection method as claimed in claim 7 or 8, is characterized in that,
When described interface type judgement unit detects that after powering on and stablize level that described D-pin exports is the level of change, judge that interface type that the external unit be connected with described electronic equipment uses is as audio interface; Otherwise judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface or IC-card interface;
Wherein, when the interface type that external unit uses is for audio interface, using described D+ and D-pin as reference signal pin and sound signal pin.
10. detection method as claimed in claim 7 or 8, is characterized in that,
When detecting that the level that described D-pin exports is lasting low level in the T millisecond that described interface type judgement unit presets after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface; Otherwise judge that interface type that the external unit be connected with described electronic equipment uses is as audio interface or IC-card interface;
Wherein, when the interface type that external unit uses is for audio interface, using described D+ and D-pin as reference signal pin and sound signal pin.
11. detection methods as claimed in claim 7 or 8, is characterized in that,
When detecting that the level that described D-pin exports is lasting high level in the T millisecond that described interface type judgement unit presets after powering on and stablize, judge that interface type that the external unit be connected with described electronic equipment uses is as IC-card interface; Otherwise judge that interface type that the external unit be connected with described electronic equipment uses is as USB interface or audio interface;
Wherein, when the interface type that external unit uses is for audio interface, using described D+ and D-pin as reference signal pin and sound signal pin.
12. detection methods as claimed in claim 10, is characterized in that,
The span of described T is: 40≤T≤120.
13. detection methods as claimed in claim 11, is characterized in that,
The span of described T is: 40≤T≤120.
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| CN103927281A (en) * | 2013-01-15 | 2014-07-16 | 华硕电脑股份有限公司 | Transmission interface detection system and transmission interface detection method |
| CN105700983B (en) * | 2014-11-26 | 2019-06-18 | 北京握奇智能科技有限公司 | A kind of judgment method of USBKey and USBKey operating mode |
| WO2017177448A1 (en) * | 2016-04-15 | 2017-10-19 | 深圳前海达闼云端智能科技有限公司 | Communication method and apparatus, and electronic device |
| CN106022180B (en) * | 2016-05-27 | 2019-01-18 | 武汉源启科技股份有限公司 | Single card slot identification multiple types chucking method and device |
| CN110708489A (en) * | 2019-09-17 | 2020-01-17 | 浙江大华技术股份有限公司 | Communication method, communication device, electronic device and storage medium |
| CN111177035B (en) * | 2019-12-23 | 2024-01-16 | 闻泰通讯股份有限公司 | Peripheral processing device, method and electronic equipment |
| CN111060775A (en) * | 2020-01-10 | 2020-04-24 | 珠海格力电器股份有限公司 | Identification method and device for pin of needle base and air conditioner |
| CN111491113B (en) * | 2020-03-27 | 2022-10-21 | 浙江大华技术股份有限公司 | Hard disk video recorder, video signal access method and computer equipment |
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