CN102054151A - Method for quickly judging operating mode of dual interface smartcard - Google Patents
Method for quickly judging operating mode of dual interface smartcard Download PDFInfo
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- CN102054151A CN102054151A CN2009102017805A CN200910201780A CN102054151A CN 102054151 A CN102054151 A CN 102054151A CN 2009102017805 A CN2009102017805 A CN 2009102017805A CN 200910201780 A CN200910201780 A CN 200910201780A CN 102054151 A CN102054151 A CN 102054151A
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Abstract
The invention discloses a method for judging the operating mode of a dual interface smartcard. In the method, a contact input power supply, a non-contact current rectifying power supply and an internal power supply of a dual interface smartcard chip respectively generate a power on/off reset signal; when the dual interface smartcard is power on, according to the combination of the three power on/off reset signals, the dual interface smartcard is judged to be in a non-contact operation mode, a contact operation mode or a dual interface operation mode where the non-contact operation mode and the contact operation mode exist simultaneously. By means of the method disclosed in the invention, a COS (Chip Operation System) can immediately determine the operating mode of the dual interface smartcard after the dual interface smartcard is power on, and can perform corresponding system configuration on the dual interface smartcard according to different operating modes.
Description
Technical field
The present invention relates to field of intelligent cards, particularly relate to a kind of method of quick judgement double-interface card mode of operation.
Background technology
At present, Contact Type Ic Card (hereinafter to be referred as the contact card) has obtained general application in daily life.In the universal process of contact card, also found its existing many drawbacks gradually: contact is stuck in the wearing and tearing that frequent plug causes on the read write line can cause loose contact, thereby cause data transmission fault, and the contact card has also shortened the serviceable life that contacts card and read write line greatly with the wearing and tearing between the read write line; In addition, the communication speed of contact card is lower, adds the action of plug-in card and incurs loss through delay, and causes each transaction to need the wait of long period.
In order to address these problems, non-contact IC card (hereinafter to be referred as non-contact card) arises at the historic moment.The advantage of non-contact card is conspicuous: it carries out communication by radiowave and read-write equipment, does not have exposed contact, mechanically contacts reliability and high life with also not having between the read write line; Communication speed is higher than contact card, can be in the certain distance scope from any direction and read-write equipment communication, thereby make operate more convenient, quick.Therefore, non-contact card has been substituted the contact card in a lot of occasions, and is increasing in the share that smart card market is shared.Also there are some defectives in non-contact card: lost efficacy because of the fracture of coil solder joint easily when the card curved transitions; Be subjected to environmental interference easily and fail in the communication of some occasions; Encryption method is simpler, and security is lower than contact card etc.
Now, field of intelligent cards is brought into use double-interface card (Dual Interface SmartCard) in the world, and mainly being provides two kinds of modes with extraneous interface simultaneously on a card: contact and contactless.Double-interface card has been concentrated the contact card in the independent use and the advantage of non-contact card, and more perfect function is a kind of multifunction card.
The profile of double-interface card is with to contact card alike, and there is the hard contact that meets the ISO7816 standard on the surface; Inner structure is then similar to non-contact card, and antenna and chip module are arranged, and meets the ISO14443 standard.The card internal storage is shared in the shared CPU (central processing unit) of double-interface card (CPU) management, has only a Chip Operating System (COS), can visit identical storage area and carry out identical operations by contact interface and noncontact interface.
But also there are many technical matterss in above-mentioned double-interface card in actual practicality, especially need make corresponding configuration to chip at different mode of operations under the situation of having only a COS.For example under contactless mode of operation, relatively responsive to power consumption, need carry out low power configuration to the double-interface card chip; Under the contact mode of operation, travelling speed and security there is higher requirement.The pattern of back acquiescence is a noncontact mode if double-interface card powers on, and after double-interface card powers on the actual contact mode of operation that is in, then the double-interface card chip system can switch under the configuration of contact mode of operation in a period of time of working under the configuration of noncontact mode again, a kind of system works pattern of this acquiescence earlier switches to the mode of real work pattern again, light then influence the performance of total system, heavy then cause double-interface card to work.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of quick judgement double-interface card mode of operation, make COS after double-interface card powers on, just can determine its present mode of operation immediately, and double-interface card is carried out corresponding system configuration according to different working modes.
For solving the problems of the technologies described above, the method for quick judgement double-interface card mode of operation of the present invention is respectively to produce a power-on and power-off reset signal by the contact input power supply of double-interface card chip, contactless rectifier power source, internal electric source; After double-interface card powers on, judge that according to the combination of three power-on and power-off reset signals double-interface card is in contactless mode of operation, contact mode of operation, or contact and contactless simultaneous pair of interface mode of operation.
Adopt method of the present invention can make COS after powering on, can determine its present mode of operation at once, and the double-interface card chip system is disposed accordingly according to the difference of mode of operation at double-interface card.So not only saved by the system configuration time under the double-interface card acquiescence mode of operation, also having saved needs to change the time that mode of operation is switched after powering on.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and embodiment:
Accompanying drawing is method one an embodiment synoptic diagram of the present invention.
Embodiment
As shown in the figure, in method one embodiment of quick judgement double-interface card mode of operation of the present invention, VDD_RFREGIN is the contactless rectifier power source of double-interface card chip, it inputs to the non-contact electric power adjuster, and produces non-contact electric power power-on and power-off reset signal POR_CL by this non-contact electric power adjuster; VCC is the contact input power supply of double-interface card chip, and it inputs to the contact feed regulator isolator and produces contact power supply power-on and power-off reset signal POR_CB by this contact feed regulator isolator; VDDCORE be by contactless rectifier power source or contact input power supply through power isolator produce double-interface card chip internal power supply, it inputs to the internal electric source adjuster, and produces internal electric source power-on and power-off reset signal POR_I by this internal electric source adjuster.
After double-interface card powers on, can judge its present mode of operation according to the combination of three power-on and power-off reset signal POR_CL, POR_CB, POR_I level.
When POR_I was low level, expression double-interface card chip internal also broke away from and resets, and does not need also to know which kind of mode of operation the double-interface card chip is in; When POR_I was high level, expression double-interface card chip internal had broken away from and has resetted operate as normal, at this moment needed further to judge POR_CL and the level of POR_CB this moment; When POR_CL is a high level, when POR_CB was low level, then the double-interface card chip was in contactless mode of operation; When POR_CB is a high level, when POR_CL was low level, then the double-interface card chip was in the contact mode of operation; When POR_CB is a high level, when POR_CL was high level, then the double-interface card chip was in contact and simultaneous pair of interface mode of operation of noncontact.
Shown in accompanying drawing, the mode of operation judge module is responsible for the level combination of power-on and power-off reset signal POR_CL, POR_CB, POR_I is judged, and the result that combination is judged according to three power-on and power-off reset signal POR_CL, POR_CB, POR_I level produces mode of operation indicator signal Por_Mode, is used to indicate different mode of operations.In the present embodiment, when Por_Mode is 2 ' b00, do not have in all senses; When Por_Mode was 2 ' b01, expression double-interface card chip was in contactless mode of operation; When Por_Mode was 2 ' b10, expression double-interface card chip was in the contact mode of operation; When Por_Mode was 2 ' b11, expression double-interface card chip was in two interfaces mode of operation contactless and the contact coexistence.COS can obtain this information by register, so just can carry out corresponding system configuration to the double-interface card chip fast according to concrete mode of operation, helps to improve double-interface card chip system overall performance.
More than by embodiment the present invention is had been described in detail, but these are not to be construed as limiting the invention.Under the situation that does not break away from the principle of the invention; those skilled in the art also can make many distortion and improvement; for example; the pairing different working modes of the combination of three power-on and power-off reset signals can also adopt other array mode beyond the foregoing description; mode of operation indicator signal Por_Mode can also adopt the different mode of operation of other form representative, and these also should be considered as protection scope of the present invention.
Claims (3)
1. a method of judging the double-interface card mode of operation fast is characterized in that: respectively produce a power-on and power-off reset signal by the contact input power supply of double-interface card chip, contactless rectifier power source, internal electric source; After double-interface card powers on, judge that according to the combination of three power-on and power-off reset signals double-interface card is in contactless mode of operation, contact mode of operation, or contact and contactless simultaneous pair of interface mode of operation.
2. the method for claim 1, it is characterized in that: POR_CL represents non-contact electric power power-on and power-off reset signal, and POR_CB represents contact power supply power-on and power-off reset signal, and POR_I represents internal electric source power-on and power-off reset signal;
When POR_I was low level, expression double-interface card chip internal also broke away from and resets, and does not need to know which kind of mode of operation the double-interface card chip is in; When POR_I was high level, expression double-interface card chip internal had broken away from the operate as normal that resets; At this moment, if POR_CL is a high level, POR_CB is a low level, and then the double-interface card chip is in contactless mode of operation; If POR_CB is a high level, POR_CL is a low level, and then the double-interface card chip is in the contact mode of operation; If POR_CB is a high level, POR_CL is a high level, and then the double-interface card chip is in contact and simultaneous pair of interface mode of operation of noncontact.
3. method as claimed in claim 2 is characterized in that: the result who judges according to three power-on and power-off reset signal POR_CL, POR_CB, the combination of POR_I level produces mode of operation indicator signal Por_Mode, is used to indicate different mode of operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910201780.5A CN102054151B (en) | 2009-11-09 | 2009-11-09 | Method for quickly judging operating mode of dual interface smartcard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910201780.5A CN102054151B (en) | 2009-11-09 | 2009-11-09 | Method for quickly judging operating mode of dual interface smartcard |
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| Publication Number | Publication Date |
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| CN102054151A true CN102054151A (en) | 2011-05-11 |
| CN102054151B CN102054151B (en) | 2014-08-20 |
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| CN200910201780.5A Active CN102054151B (en) | 2009-11-09 | 2009-11-09 | Method for quickly judging operating mode of dual interface smartcard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109408127A (en) * | 2018-11-09 | 2019-03-01 | 四川科道芯国智能技术股份有限公司 | Chip system loading method and chip card |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460965A (en) * | 2002-05-23 | 2003-12-10 | 夏普株式会社 | Combined IC card |
| CN1581220A (en) * | 2003-08-12 | 2005-02-16 | 上海华虹集成电路有限责任公司 | Toutch and nou-toutch type working-mode changing-over method in double interface card |
| CN101097606A (en) * | 2006-06-29 | 2008-01-02 | 北京握奇数据系统有限公司 | Smart card operating system and method thereof |
| CN101281610A (en) * | 2008-05-23 | 2008-10-08 | 北京握奇数据系统有限公司 | Double-interface smart card and method for starting non-contact application |
-
2009
- 2009-11-09 CN CN200910201780.5A patent/CN102054151B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460965A (en) * | 2002-05-23 | 2003-12-10 | 夏普株式会社 | Combined IC card |
| CN1581220A (en) * | 2003-08-12 | 2005-02-16 | 上海华虹集成电路有限责任公司 | Toutch and nou-toutch type working-mode changing-over method in double interface card |
| CN101097606A (en) * | 2006-06-29 | 2008-01-02 | 北京握奇数据系统有限公司 | Smart card operating system and method thereof |
| CN101281610A (en) * | 2008-05-23 | 2008-10-08 | 北京握奇数据系统有限公司 | Double-interface smart card and method for starting non-contact application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109408127A (en) * | 2018-11-09 | 2019-03-01 | 四川科道芯国智能技术股份有限公司 | Chip system loading method and chip card |
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| CN102054151B (en) | 2014-08-20 |
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