CN1512435A - Conversion method for double interface IC card contact type/non-contact type working mode - Google Patents
Conversion method for double interface IC card contact type/non-contact type working mode Download PDFInfo
- Publication number
- CN1512435A CN1512435A CNA021597987A CN02159798A CN1512435A CN 1512435 A CN1512435 A CN 1512435A CN A021597987 A CNA021597987 A CN A021597987A CN 02159798 A CN02159798 A CN 02159798A CN 1512435 A CN1512435 A CN 1512435A
- Authority
- CN
- China
- Prior art keywords
- contact
- card
- contactless
- mode
- contact type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Credit Cards Or The Like (AREA)
Abstract
The contact mode/non-contact mode conversion method for double-interface IC card includes: setting the default non-contact mode in power-on reset; judging whether to have contact reset signal; converting the system into contact mode if yes, and maintaining the system in contact trade state even if non-contact field strength appears; withdrawing the IC card while maintaining the RF field strength to maintain the contact mode while stopping contact trade; switching to non-contact mode for non-contact trade via jumping RF field strength; maintaining the non-contact mode of the system if no contact reset signal; and inserting into contact card reader to make the system convert into contact mode under the action of the contact clock and reset signal and making the software operation system into reset state and contact trade. The present invention realizes the seamless transition between the contact system and the non-contact system.
Description
Technical field
The present invention relates to a kind of conversion method of contact type working method of double-interface IC card.
Background technology
In recent years, along with technology and rapid development of economy, economy, information interchange between the people are more and more frequent, and quantity of information is increasing, and original Contact Type Ic Card can not satisfy the allegro demand of modern society.The contact mode is that cartoon is crossed contact card-reading machine acquisition power supply energy, clock, and carry out exchanges data by IO (input and output) port, though it has brought into play irreplaceable effect in our life, but in the universal process of Contact Type Ic Card, expose its inevitable weakness, for example: because abominable environment for use causes the wearing and tearing of contact to cause mispronouncing the rate raising, make mistakes owing to loose contact causes transmitting data, cause length or the like of exchange hour because plug-in card speed is hanged down.Cross antenna acquisition energy, clock but not the way of contact is a cartoon, and carry out exchanges data, need power by wireless mode, produce the required DC voltage of chip operation through the mu balanced circuit in the card by read-write equipment by antenna.Non-contact IC card is encapsulated in card inside fully with chip and antenna, this kind card the surface do not have the contact, communicate by way of electromagnetic induction and read write line.Compare with Contact Type Ic Card, contactless card has advantages such as reliability height, convenient to operation and encryption performance are good, but the anti-interference of non-contact IC card is relatively poor, and disturbing in radiofrequency signal can't operate as normal under the strong environment.Therefore Contact Type Ic Card system and contactless IC card system are merged fully, shared central processing unit CPU management, shared card internal storage just forms the double-interface IC card system has become a kind of demand.And the design of double-interface IC card and making comprise some gordian techniquies, and wherein, the conversion of contact type working method is one of bottleneck of its technical development, are difficult to guarantee and easily two kinds of working methods are correctly changed.
Summary of the invention
The object of the present invention is to provide a kind of conversion method of contact type working method of double-interface IC card, and guarantee the correct conversion of two kinds of working methods.
The conversion method of the contact type working method of a kind of double-interface IC card provided by the present invention, when comprising the following steps: system power-on reset, acquiescence is operated in contactless interface; Judged whether contact reset signal: if having, then system will transfer the contact working method to, and, when carrying out the contact transaction, no matter whether produce the noncontact field intensity, system still is operated in the contact state, if IC-card is extracted, when radio field intensity still keeps, then still be in the contact mode state but stop contact and conclude the business, also can not carry out contactless transaction; When radio field intensity has saltus step, then switch to contactless working method and carry out contactless transaction; If do not have, then system keeps contactless working method, then inserts the contact card reader, and system is transformed into the contact state under the effect of contact clock and reset signal, under the effect of reset signal, make operation system of software enter reset mode, thereby enter the contact transaction.
Owing to adopted above-mentioned technical solution, Contact Type Ic Card system and contactless IC card system to be merged fully, the card internal storage is shared in shared CPU management, and contact and contactless working method are discerned in employing identification tupe automatically.Therefore the present invention has successfully solved the transfer problem of double-interface IC card contact and contactless working method, no matter use contactless or the Contact Type Ic Card read-write equipment, can carry out identical operations to IC-card easily, can realize the seamless transitions of contact system and contactless system.
Description of drawings
Fig. 1 is the mode switching method process flow diagram of double-interface IC card of the present invention.
Embodiment
As shown in Figure 1, the conversion method of the contact type working method of double-interface IC card of the present invention comprises the following steps:
During system power-on reset, acquiescence is operated in contactless interface;
Judged whether contact reset signal:
If have, then system will transfer the contact working method to, and, when carrying out the contact transaction, no matter whether produce the noncontact field intensity, system still is operated in the contact state, if IC-card is extracted, when radio field intensity still keeps, then still be in the contact mode state but stop contact and conclude the business, also can not carry out contactless transaction; When radio field intensity has saltus step, then switch to contactless working method and carry out contactless transaction;
If do not have, then system keeps contactless working method, then inserts the contact card reader, and system is transformed into the contact state under the effect of contact clock and reset signal, under the effect of reset signal, make operation system of software enter reset mode, thereby enter the contact transaction.
The present invention is merged Contact Type Ic Card system and contactless IC card system fully, and the card internal storage is shared in shared CPU management.Double-interface IC card adopts automatic identification tupe to discern contact and contactless working method.The contact mode is that cartoon is crossed contact card-reading machine acquisition power supply energy, clock, and carry out exchanges data by the IO port, the noncontact mode is that cartoon is crossed antenna acquisition energy, clock, and carry out exchanges data by antenna, need power by wireless mode by read-write equipment, produce the required DC voltage of chip operation through the mu balanced circuit in the card.
Claims (1)
1. the conversion method of the contact type working method of a double-interface IC card comprises the following steps:
When system power-on reset, acquiescence is operated in contactless interface;
Judged whether contact reset signal:
If have, then system will transfer the contact working method to, and, when carrying out the contact transaction, no matter whether produce the noncontact field intensity, system still is operated in the contact state, if IC-card is extracted, when radio field intensity still keeps, then still be in the contact mode state but stop contact and conclude the business, also can not carry out contactless transaction; When radio field intensity has saltus step, then switch to contactless working method and carry out contactless transaction;
If do not have, then system keeps contactless working method, then inserts the contact card reader, and system is transformed into the contact state under the effect of contact clock and reset signal, under the effect of reset signal, make operation system of software enter reset mode, thereby enter the contact transaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02159798 CN1218268C (en) | 2002-12-26 | 2002-12-26 | Conversion method for double interface IC card contact type/non-contact type working mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02159798 CN1218268C (en) | 2002-12-26 | 2002-12-26 | Conversion method for double interface IC card contact type/non-contact type working mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1512435A true CN1512435A (en) | 2004-07-14 |
| CN1218268C CN1218268C (en) | 2005-09-07 |
Family
ID=34237653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02159798 Expired - Fee Related CN1218268C (en) | 2002-12-26 | 2002-12-26 | Conversion method for double interface IC card contact type/non-contact type working mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1218268C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7011252B2 (en) | 2003-04-14 | 2006-03-14 | Matsushita Electric Industrial Co., Ltd. | IC card and OS activation method for the same |
| CN102096835A (en) * | 2009-12-10 | 2011-06-15 | 上海华虹集成电路有限责任公司 | Method for switching working modes of dual interface smart card |
| CN104463314A (en) * | 2014-12-05 | 2015-03-25 | 大唐微电子技术有限公司 | Smart card issuing method and system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102567776B (en) * | 2011-12-27 | 2015-07-22 | 广州中大微电子有限公司 | Double-interface intelligent card capable of quickly implementing mode selection and implementing method |
-
2002
- 2002-12-26 CN CN 02159798 patent/CN1218268C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7011252B2 (en) | 2003-04-14 | 2006-03-14 | Matsushita Electric Industrial Co., Ltd. | IC card and OS activation method for the same |
| CN1294526C (en) * | 2003-04-14 | 2007-01-10 | 松下电器产业株式会社 | IC card and its OS starting method |
| CN102096835A (en) * | 2009-12-10 | 2011-06-15 | 上海华虹集成电路有限责任公司 | Method for switching working modes of dual interface smart card |
| CN104463314A (en) * | 2014-12-05 | 2015-03-25 | 大唐微电子技术有限公司 | Smart card issuing method and system |
| CN104463314B (en) * | 2014-12-05 | 2018-03-02 | 大唐微电子技术有限公司 | A kind of smart card issuance method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1218268C (en) | 2005-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100418103C (en) | Method for integrating multiple data transmission interfaces on smart card and novel smart card | |
| EP2128789A1 (en) | Method for reducing RF interference inside dual-interface card reader and corresponding dual-interface card reader | |
| US6199764B1 (en) | UART with an IC card reading interface and IC card reading system using the same | |
| CN201583984U (en) | Separable non-contact card device | |
| CN1218268C (en) | Conversion method for double interface IC card contact type/non-contact type working mode | |
| CN202102425U (en) | Port conversion device | |
| CN201004233Y (en) | A RF card reading device with RS485 interface | |
| CN201340604Y (en) | Composite contact card reader | |
| CN101350058B (en) | Method for self-adapting double-interface IC card protocol mode | |
| JP4676600B2 (en) | IC card, reader / writer, IC card system and IC card operating condition setting method | |
| CN103473861A (en) | Pos machine device based on cellphone card swiping | |
| US10037487B2 (en) | Single-chip financial audio IC card | |
| CN201041643Y (en) | An intelligent card reading connection device | |
| CN202373005U (en) | Compound multifunctional integrated circuit (IC) card reader-writer | |
| CN201322934Y (en) | Reader-writer capable of operating contact cards and electronic tags simultaneously | |
| CN201583987U (en) | Self-adaptive micro SD memory card compatible to MS standard | |
| CN102110237A (en) | Processing method for lowering power consumption of multi-interface IC (Integrated Circuit) card pin | |
| CN201449614U (en) | Multimode card reader | |
| CN204706047U (en) | A kind of RFID card reader for high fail-safe computer | |
| CN208969790U (en) | A kind of automatic car washing machine IC card reader | |
| CN2779494Y (en) | A multi-standard RF card reader-writer | |
| CN209417773U (en) | The system for obtaining terminal read-write card data | |
| CN204423398U (en) | Close range wireless communication module, control device and electronic equipment | |
| CN204835131U (en) | USB connects converter based on contact IC -USB card | |
| CN202120270U (en) | Card reader for health archive storage IC |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050907 Termination date: 20181226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |