CN101430771B - Method for using card slot contact as I/O interface circuit and contact card equipment thereof - Google Patents
Method for using card slot contact as I/O interface circuit and contact card equipment thereof Download PDFInfo
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- CN101430771B CN101430771B CN2008102268832A CN200810226883A CN101430771B CN 101430771 B CN101430771 B CN 101430771B CN 2008102268832 A CN2008102268832 A CN 2008102268832A CN 200810226883 A CN200810226883 A CN 200810226883A CN 101430771 B CN101430771 B CN 101430771B
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Abstract
The invention discloses a method for applying a card slot contact as an I/O interface circuit and a contact card device, and belongs to the smart card field. The method comprises the following steps: establishing connection between the contact card device and an access device; judging whether the card slot contact of the contact card device satisfies conditions for being applied as the I/O interface circuit, if yes, applying the card slot contact as the I/O interface circuit; otherwise, applying the card slot contact as an I/C card processing circuit. The contact card device comprises a first communication module, a first judgment module, a first switching module and a second switching module. The card slot contact of the contact card device is applied as the I/O interface circuit so that the contact card device is not required to be opened while performing special operations such as upgrade, simulation or data extraction and the like, thus expanding the interactive interface between an internal circuit of the card contact device and the access device without changing the performance and the technical indexes of the contact card device.
Description
Technical field
The present invention relates to field of intelligent cards, particularly a kind of method and contact card equipment that card slot contact is applied as the I/O interface circuit.
Background technology
In recent years, the high speed development of infotech had been brought people into the epoch that high speed information is propagated.Naturally, contact card equipment produces thereupon, card reader for example, and it is very small and exquisite, portable that it is done, and is a kind of PC peripheral hardware of standard, can finish the operation that card is read by computer-controlled specifically.And for example, SIM card deck etc.
The I/O interface is responsible for realizing that CPU links together IO circuit and peripherals by system bus, complexity according to circuit and equipment, the hardware of I/O interface mainly is divided into two big classes: 1) I/O interface chip, these chips mostly are integrated circuit, by different order and the parameters of CPU input, and relevant IO circuit and the simple peripheral hardware of control made corresponding operation, common interface chip such as Timer, interruptable controller, dma controller, parallel interface etc.; 2) I/O interface control card, the parts that it is made up of by certain logic several integrated circuit, perhaps directly and CPU coexist parts on the mainboard or a plug-in unit that is inserted on the system bus slot.Connecting object according to interface divides, and they can be divided into serial line interface, parallel interface, keyboard interface and disk interface etc. again.
Contact card equipment provides the user at least one contact deck, uses communication interface and access device to carry out exchanges data.But contact card equipment and access device is mutual, sometimes simple is not enough by communication interface, such as need upgrade when contact card equipment, operations such as emulation or data extract, just need some special purpose interfaces correspondingly to operate, for example these special purpose interfaces have BDC (Backup Domain Controller) interface.
Yet, when contact card equipment carries out some as operations such as upgrading, emulation or data extracts, generally the contact card equipment shell need be opened, very inconvenient.Just more difficult when contact card equipment is embedded into miscellaneous equipment, and may cause damage to miscellaneous equipment, use very inconvenient.
Summary of the invention
In order to make simple to operation to contact card equipment, the invention provides and a kind of card slot contact is applied as the method and the contact card equipment of I/O interface circuit, described technical scheme is as follows:
A kind of card slot contact is applied as the method for I/O interface circuit, described method comprises:
Contact card equipment and access device connect;
Whether the card slot contact of judging described contact card equipment satisfies the condition that is applied as the I/O interface circuit, if satisfy, described card slot contact is applied as the I/O interface circuit; Otherwise, described card slot contact is applied as the IC-card treatment circuit.
Wherein, judge whether the card slot contact of described contact card equipment satisfies the condition that is applied as the I/O interface circuit,, described card slot contact is applied as the I/O interface circuit if satisfy; Otherwise, described card slot contact is applied as the IC-card treatment circuit, specifically comprise:
Voltage to default card slot contact in the described card slot contact detects, and judges whether the voltage of described default card slot contact is consistent with predeterminated voltage; If consistent, then described card slot contact is applied as the I/O interface circuit; If inconsistent, then described card slot contact is applied as the IC-card treatment circuit.
Wherein, judge whether the card slot contact of described contact card equipment satisfies the condition that is applied as the I/O interface circuit,, described card slot contact is applied as the I/O interface circuit if satisfy; Otherwise, described card slot contact is applied as the IC-card treatment circuit, specifically comprise:
Judge that can voltage that preset card slot contact in the described card slot contact trigger described access device and insert a default contact that snaps into; If can, then described card slot contact is applied as the IC-card treatment circuit; Otherwise, described card slot contact is applied as the I/O interface circuit.
Wherein, judge whether the card slot contact of described contact card equipment satisfies the condition that is applied as the I/O interface circuit,, described card slot contact is applied as the I/O interface circuit if satisfy; Otherwise, described card slot contact is applied as the IC-card treatment circuit, specifically comprise:
Judge whether in Preset Time, described card slot contact to be applied as the I/O interface circuit, if then described card slot contact is applied as the I/O interface circuit; Otherwise, described card slot contact is applied as the IC-card treatment circuit.
Wherein, judge whether the card slot contact of described contact card equipment satisfies the condition that is applied as the I/O interface circuit,, described card slot contact is applied as the I/O interface circuit if satisfy; Otherwise, described card slot contact is applied as the IC-card interface circuit, specifically comprise:
Judge whether the manual switchover signal that receives is applied as the I/O interface circuit with described card slot contact, if described card slot contact is applied as the I/O interface circuit; Otherwise, described card slot contact is applied as the IC-card treatment circuit.
Wherein, described method also comprises:
When described card slot contact is converted to when being applied as the IC-card treatment circuit by being applied as the I/O interface circuit, re-power for described contact card equipment.
Wherein, when described access device can not provide voltage for described contact card equipment, described contact card equipment connected with described access device before powering on, and powered on for then described contact card equipment.
Wherein, described contact card equipment is IC-card deck, SIM card deck, card reader or IC-card equipment.
A kind of contact card equipment is characterized in that, described contact card equipment comprises: communication module, judge module, first handover module, second handover module;
Described communication module is used for connecting with access device;
Described judge module is used for after described communication module and access device connect, and judges whether the card slot contact of described contact card equipment satisfies the condition that is applied as the I/O interface circuit, if satisfy, then notifies described first handover module; Otherwise, notify described second handover module;
Described first handover module after being used to receive the notice of described judge module, is applied as the I/O interface circuit with described card slot contact;
Described second handover module after being used to receive the notice of described judge module, is applied as the IC-card treatment circuit with described card slot contact.
Wherein, described judge module specifically comprises: voltage detection unit;
Described voltage detection unit is used for the voltage of the default card slot contact of described card slot contact is detected, and judges whether the voltage of described default card slot contact is consistent with predeterminated voltage, if notify described first handover module; Otherwise, notify described second handover module.
Wherein, described judge module specifically comprises: the detection trigger unit;
Described detection trigger unit, can the voltage that be used for judging the default card slot contact of described card slot contact trigger described access device and insert a default contact that snaps into, if can not, notify described first handover module, otherwise, notify described second handover module.
Wherein, it is characterized in that described judge module specifically comprises: the time detecting unit;
Described time detecting unit is used to judge whether in Preset Time card slot contact is applied as the I/O interface circuit, if, notify described first handover module, otherwise, notify described second handover module.
Wherein, described judge module is used to specifically judge whether the manual switchover signal that receives is applied as the I/O interface circuit with described card slot contact, if notify described first handover module; Otherwise, notify described second handover module.
Wherein, described contact card equipment also comprises: signal sends module;
Described signal sends module, is used for sending the manual switchover signal to described judge module.
Wherein, described first handover module and second handover module are relay or analog switch.
Wherein, described analog switch is 4053 chips.
Wherein, described contact card equipment is IC-card deck, SIM card deck, card reader or IC-card equipment.
Compared with prior art, beneficial effect of the present invention is: be applied as the I/O interface circuit by the card slot contact with contact card equipment, make when dedicated operations such as contact card equipment is upgraded, emulation or data extract, do not need contact card equipment is opened, expand the interactive interface of contact card equipment internal circuit and access device like this, do not changed the performance and the technical indicator of contact card equipment again.
Description of drawings
Fig. 1 is a kind of method flow diagram that card slot contact is applied as the I/O interface circuit that the embodiment of the invention 1 provides;
Fig. 2 is a kind of circuit diagram that the embodiment of the invention 1 provides;
Fig. 3 is a kind of contact card equipment structural representation that the embodiment of the invention 2 provides;
Fig. 4 is that the handover module that the embodiment of the invention 2 provides is the physical circuit figure of analog switch.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, the embodiment of the invention provides a kind of card slot contact has been applied as the method for I/O interface circuit, and this method comprises:
Step 101: contact card equipment and access device connect.
Step 102: whether the card slot contact of judging contact card equipment satisfies the condition that is applied as the I/O interface circuit, if satisfy execution in step 103; Otherwise, execution in step 104.
Wherein, judge card slot contact when this contact card equipment and satisfy when being applied as the condition of I/O interface circuit that this access device is a specialized equipment, be used for to contact card equipment upgrade, operations such as emulation or data extract;
Judge card slot contact when this contact card equipment and do not satisfy when switching to the condition of I/O interface that this access device is the standard IC-card.
Step 103: card slot contact is applied as the I/O interface circuit, with this access device be that specialized equipment carries out exchanges data.
Step 104: card slot contact is applied as the IC-card treatment circuit, with this access device be that IC standard sticks into line data exchange.
Wherein, when this access device self can not provide voltage for contact card equipment, corresponding, step 101 connected with access device before powering on for contact card equipment, and powered on for this contact card equipment, and other step is identical.
Wherein, judge whether the card slot contact of contact card equipment satisfies the condition that is applied as the I/O interface circuit, specifically comprise:
Voltage to default card slot contact in the card slot contact of contact card equipment detects, whether the voltage of judging this default card slot contact is consistent with predeterminated voltage, if, card slot contact is applied as the I/O interface circuit, with this access device be that specialized equipment carries out exchanges data; Otherwise, card slot contact is applied as the IC-card treatment circuit, with this access device be that IC standard sticks into line data exchange.
Wherein, can detect by the voltage of state detection circuit default card slot contact in the card slot contact of contact card equipment.
Wherein, this default card slot contact can be all card slot contacts of contact card equipment or the card slot contact of appointment.
In the present embodiment, this default card slot contact is default card slot contact in the contact card equipment card slot contact.
Wherein, the voltage that can preset this card slot contact is+5V.The present invention does not limit the voltage of card slot contact.
Wherein, judge whether the card slot contact of contact card equipment satisfies the condition that is applied as the I/O interface circuit, specifically comprise:
Judge that can voltage that preset card slot contact in the above-mentioned card slot contact trigger access device and insert a default contact that snaps into, if can, card slot contact is applied as the IC-card treatment circuit, carry out exchanges data with this access device; Otherwise, card slot contact is applied as the I/O interface circuit.
Referring to Fig. 2, be the circuit diagram in the practical application, in concrete the application, can judge that can the voltage of default card slot contact in the above-mentioned card slot contact trigger a contact J4 that snaps into who presets among access device insertion Fig. 2.
Wherein, judge whether the card slot contact of contact card equipment satisfies the condition that is applied as the I/O interface circuit, specifically comprise:
Judge whether in Preset Time, card slot contact to be applied as the I/O interface circuit, if card slot contact is applied as the I/O interface circuit; Otherwise, card slot contact is applied as the IC-card treatment circuit, carry out exchanges data with this access device.
Wherein, judge whether the card slot contact of contact card equipment satisfies the condition that is applied as the I/O interface circuit, specifically comprise:
Judge whether the manual switchover signal that receives is applied as the I/O interface circuit with described card slot contact, if card slot contact is applied as the I/O interface circuit; Otherwise, card slot contact is applied as the IC-card treatment circuit.
Wherein, this method also comprises: when card slot contact is converted to when being applied as the IC-card treatment circuit by being applied as the I/O interface circuit, contact card equipment and access device are disconnected, re-power to contact card equipment, and then be connected with access device.
Because the card slot contact of contact card equipment all is applied as the IC-card treatment circuit under normal conditions, so when contact card equipment finishes corresponding operation in the I/O interface circuit after, the card slot contact of contact card equipment can be worked under normal conditions, is about to card slot contact and is applied as the IC-card interface circuit.
Wherein, corresponding when this access device self can not provide voltage for contact card equipment,
Step 101 connected with access device before powering on for contact card equipment, and powered on for this contact card equipment, and other step is identical.
Wherein, contact card equipment can be IC-card deck, SIM card deck, card reader or IC-card equipment.
The beneficial effect of present embodiment is: be applied as the I/O interface circuit by the card slot contact with contact card equipment, make when dedicated operations such as contact card equipment is upgraded, emulation or data extract, do not need contact card equipment is opened, expand the interactive interface of contact card equipment internal circuit and access device like this, do not changed the performance and the technical indicator of contact card equipment again.
Referring to Fig. 3, the embodiment of the invention provides a kind of contact card equipment 200, and this contact card equipment 200 comprises: communication module 201, judge module 202, the first handover modules 203, the second handover modules 204;
Wherein, when card slot contact was applied as the I/O interface circuit, this access device was a specialized equipment, be used for to contact card equipment upgrade, operation such as emulation or data extract.
Wherein, when card slot contact was applied as the IC-card treatment circuit, this access device was the standard IC-card.
Wherein, judge module 202 is specially voltage detection unit.
This voltage detection unit is used for the voltage of the default card slot contact of the card slot contact of contact card apparatus is detected, and judges whether the voltage of this default card slot contact is consistent with predeterminated voltage, if notify first handover module 203; Otherwise, notify second handover module 204;
Concrete, can detect by the voltage of state detection circuit default card slot contact in the card slot contact of this contact card equipment 200.
Wherein, this default card slot contact can be all card slot contacts of contact card equipment or the card slot contact of appointment.
In the present embodiment, this default card slot contact is default card slot contact in the contact card equipment card slot contact.
Perhaps, judge module 202 is specially the detection trigger unit;
This detection trigger unit, can the voltage that be used for judging the default card slot contact of above-mentioned card slot contact trigger access device and insert a default contact that snaps into, if can not, notify first handover module 203, otherwise, notify second handover module 204;
Perhaps, judge module 202 is specially the time detecting unit;
This time detecting unit is used to judge whether in Preset Time card slot contact is applied as the I/O interface circuit, if notify first handover module 203; Otherwise, notify second handover module 204.
Perhaps, judge module 202 is used to specifically judge whether the manual switchover signal that receives is applied as the I/O interface circuit with described card slot contact, if notify first handover module 203; Otherwise, notify second handover module 204.
Accordingly, this contact card equipment comprises that also signal sends module 205;
This signal sends module 205, is used for sending the manual switchover signal to judge module 202.
Wherein, first handover module 203 and second handover module 204 can be relay or analog switch, and wherein, analog switch can be 4053 chips.
Referring to Fig. 2, also can be that first handover module 203 and second handover module 204 are the physical circuit figure of relay;
Referring to Fig. 4, be that first handover module 203 and second handover module 204 are the physical circuit figure of analog switch.
Wherein, when this contact card equipment 200 is in the state of first handover module 203, in the time of need being in the state of second handover module 204, re-power and to finish for this contact card equipment 200.
Because contact card equipment 200 all is the state that is in second handover module 204 under normal conditions,, promptly be in the state of second handover module 204 so after first handover module 203 executes corresponding operation, just contact card equipment 200 need be applied as normality.
Wherein, first handover module 203 and second handover module 204 can be relay or analog switch, and wherein, analog switch can be 4053 chips.
Wherein, contact card equipment 200 can be IC-card deck, SIM card deck, card reader or IC-card equipment.
The beneficial effect of present embodiment is: be applied as the I/O interface circuit by the card slot contact with contact card equipment, make when dedicated operations such as contact card equipment is upgraded, emulation or data extract, do not need contact card equipment is opened, expand the interactive interface of contact card equipment internal circuit and access device like this, do not changed the performance and the technical indicator of contact card equipment again.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. one kind is applied as the method for I/O interface circuit with card slot contact, it is characterized in that described method comprises:
Contact card equipment and access device connect;
Whether the card slot contact of judging described contact card equipment satisfies the condition that is applied as the I/O interface circuit, if satisfy, described card slot contact is applied as the I/O interface circuit; Otherwise, described card slot contact is applied as the IC-card treatment circuit, specifically comprise:
Voltage to default card slot contact in the described card slot contact detects, and judges whether the voltage of described default card slot contact is consistent with predeterminated voltage; If consistent, then described card slot contact is applied as the I/O interface circuit; If inconsistent, then described card slot contact is applied as the IC-card treatment circuit;
Judge that can voltage that preset card slot contact in the described card slot contact trigger described access device and insert a default contact that snaps into; If can, then described card slot contact is applied as the IC-card treatment circuit; Otherwise, described card slot contact is applied as the I/O interface circuit;
Judge whether in Preset Time, described card slot contact to be applied as the I/O interface circuit, if then described card slot contact is applied as the I/O interface circuit; Otherwise, described card slot contact is applied as the IC-card treatment circuit;
Judge whether the manual switchover signal that receives is applied as the I/O interface circuit with described card slot contact, if described card slot contact is applied as the I/O interface circuit; Otherwise, described card slot contact is applied as the IC-card treatment circuit.
2. according to claim 1 card slot contact is applied as the method for I/O interface circuit, it is characterized in that described method also comprises:
When described card slot contact is converted to when being applied as the IC-card treatment circuit by being applied as the I/O interface circuit, described contact card equipment re-powers.
3. according to claim 1 card slot contact is applied as the method for I/O interface circuit, it is characterized in that,
When described access device can not provide voltage for described contact card equipment, described contact card equipment connected with described access device before powering on, and powered on for then described contact card equipment.
4. each describedly is applied as the method for I/O interface circuit with card slot contact according to claim 1 to 3, it is characterized in that described contact card equipment is IC-card deck, SIM card deck, card reader or IC-card equipment.
5. a contact card equipment is characterized in that, described contact card equipment comprises: communication module, judge module, first handover module, second handover module;
Described communication module is used for connecting with access device;
Described judge module is used for after described communication module and access device connect, and judges whether the card slot contact of described contact card equipment satisfies the condition that is applied as the I/O interface circuit, if satisfy, then notifies described first handover module; Otherwise, notify described second handover module; Specifically comprise: voltage detection unit, detection trigger unit, time detecting unit;
Described voltage detection unit is used for the voltage of the default card slot contact of described card slot contact is detected, and judges whether the voltage of described default card slot contact is consistent with predeterminated voltage, if notify described first handover module; Otherwise, notify described second handover module;
Described detection trigger unit, can the voltage that be used for judging the default card slot contact of described card slot contact trigger described access device and insert a default contact that snaps into, if can not, notify described first handover module, otherwise, notify described second handover module;
Described time detecting unit is used to judge whether in Preset Time card slot contact is applied as the I/O interface circuit, if, notify described first handover module, otherwise, notify described second handover module;
Described judge module is used to specifically judge whether the manual switchover signal that receives is that described card slot contact is applied as the I/O interface circuit, if notify described first handover module; Otherwise, notify described second handover module;
Described first handover module after being used to receive the notice of described judge module, is applied as the I/O interface circuit with described card slot contact;
Described second handover module after being used to receive the notice of described judge module, is applied as the IC-card treatment circuit with described card slot contact.
6. contact card equipment according to claim 5 is characterized in that described contact card equipment also comprises: signal sends module;
Described signal sends module, is used for sending the manual switchover signal to described judge module.
7. contact card equipment according to claim 5 is characterized in that, described first handover module and second handover module are relay or analog switch.
8. contact card equipment according to claim 7 is characterized in that, described analog switch is 4053 chips.
9. according to each described contact card equipment of claim 5 to 8, it is characterized in that described contact card equipment is IC-card deck, SIM card deck, card reader or IC-card equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102268832A CN101430771B (en) | 2008-11-19 | 2008-11-19 | Method for using card slot contact as I/O interface circuit and contact card equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102268832A CN101430771B (en) | 2008-11-19 | 2008-11-19 | Method for using card slot contact as I/O interface circuit and contact card equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101430771A CN101430771A (en) | 2009-05-13 |
| CN101430771B true CN101430771B (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102268832A Active CN101430771B (en) | 2008-11-19 | 2008-11-19 | Method for using card slot contact as I/O interface circuit and contact card equipment thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376007A (en) * | 2010-08-25 | 2012-03-14 | 钱袋网（北京）信息技术有限公司 | Subscriber identity module (SIM) card paster and identity card (IC) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5599203A (en) * | 1995-10-31 | 1997-02-04 | The Whitaker Corporation | Smart card and smart card connector |
| US6655590B1 (en) * | 1999-07-02 | 2003-12-02 | 3M Innovative Properties Company | Smart card reader |
-
2008
- 2008-11-19 CN CN2008102268832A patent/CN101430771B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5599203A (en) * | 1995-10-31 | 1997-02-04 | The Whitaker Corporation | Smart card and smart card connector |
| US6655590B1 (en) * | 1999-07-02 | 2003-12-02 | 3M Innovative Properties Company | Smart card reader |
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| CN101430771A (en) | 2009-05-13 |
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Owner name: FEITIAN CHENGXIN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING FEITIAN CHENGXIN SCIENCE + TECHNOLOGY CO. LTD. |
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Address after: 100085 Beijing city Haidian District Xueqing Road No. 9 Ebizal building B block 17 layer Patentee after: Feitian Technologies Co., Ltd. Address before: 100083, Haidian District, Xueyuan Road, No. 40 research, 7 floor, 5 floor, Beijing Patentee before: Beijing Feitian Chengxin Science & Technology Co., Ltd. |