TWI382742B - Dual card system - Google Patents

Description

Dual card system

The present invention relates to a dual card system for use in a communication terminal or a transaction terminal, and more particularly to a dual card system for a communication terminal having two card slots.

In general, smart cards are commonly used in two areas. One is a Subscriber Identity Module (SIM) for wireless communication, and the other is an identification system such as a financial card, credit card or health insurance card. The SIM card is used in a mobile communication device, and a wireless network system, such as a GSM or CDMA system, has a SIM card issued by a related communication service company. The SIM card stores user information, including the user's phone number, phone book, dialing restrictions, personal identification number (PIN), personal unlock code (PUK), and the like. Furthermore, a non-counterfeit SIM card is accepted by the GSM communication system for communication so that the user can be allowed to enter the GSM communication network to transmit information.

In general, a SIM card is also called a plug-in size card, and its size is about 25 mm long and 15 mm wide, and only the copper portion is actually used for connection. When the SIM card is connected to the handset, there are at least five contacts between the two. The SIM card consists of five parts, including CPU, RAM, ROM, EEPROM or Flash, and serial communication unit. The information stored on the SIM card contains (1) control channel information in the GSM system; (2) International Mobile Subscriber Identity (IMSI) and Temporary Mobile Subscriber Identity (TMSI); (3) User Key and Secret Algorithm (4) Personal Identification Number (PIN) and Personal Unlocking Code (PUK); and (5) SIM Card Application Tool Set (STK).

With the widespread use of smart cards in the communications industry, such as: SIM for GSM, USIM for WCDMA, RUIM for CDMA2000, and PIM for PHS networks, currently using smart cards for mobile phones (SIM/USIM/RUIM/PIM, which will be uniformly referred to by the Universal Integrated Circuit Card UICC), various applications have been developed to provide security services. The operator ensures the security of the use of the mobile service by authenticating the key issued by the operator to the user in the smart card. In addition, operators provide additional services such as mobile banking and mobile stock trading services by depositing keys from banks or other service providers stored on SIM cards. These keys are manipulated through an application interface by a SIM card application tool set (STK) also stored in the SIM card. Since the beginning of the Wireless Application Protocol (WAP) phone, SIM card operators have also developed the Wireless Identification Module (WIM), which stores the authentication and PKI algorithms in the SIM (SWIM card) or another separately insertable The WIM card in the other slot of the mobile phone ensures the security of the WAP.

The keypad and screen of the mobile phone allow the inserted smart card to have an easier user interface and make it easier for the remote access to the service provider and further the mobility of the service. In order to achieve service mobility, banks, credit card issuers, mass transit card issuers, certification issuers, and securities providers are actively seeking to work with operators to issue value-added SIM cards for convenience. Provide services in their areas of expertise. However, the provision and management of SIM capabilities and functions are controlled by mobile operators. As a result, a closed system is formed that allows only authorized members to participate. In addition, the relationship between service providers and operators is mutually untrustworthy and both have similar solutions for security and payment control, which is the biggest obstacle to the development of mobile security services. Accordingly, the present invention has been made in an effort to solve the above problems.

On the other hand, the traditional smart card is ISO size, 84 mm long and 54 mm wide. Generally, it is applied to financial transaction systems, such as financial cards, credit cards, cash cards, or identification systems such as health insurance cards. Some smart cards contain antennas that surround the plastic card to provide contactless applications, called contactless cards, typically used in access control or transaction payment systems, such as electronic toll collection systems (ETC) and leisure cards. Communication equipment transmission technologies, such as Automatic Vehicle Identification (AVI), Automatic Vehicle Classification (AVC), Image Enforcement System (VES), etc., are electronic toll collection systems (ETC) for detecting and scanning in-vehicle on-board aircraft (OBU) It is used so that the user can automatically pay by the reverse debit service system without stopping or stopping at the toll booth.

According to one aspect of the present invention, a dual card system for a communication terminal includes a pair of cards; and a main card having a network security function connected between the communication terminal and the secondary card and having a processor To control the secondary card.

According to the concept of the present case, the network security function includes network access control, mail encryption, or electronic signature.

According to the present concept, the secondary card includes an expandable memory for increasing storage capacity.

According to the present concept, the secondary card includes a security function.

According to the concept of the case, the security function includes network security function, data security function, or data encryption.

According to the present concept, the communication terminal includes two card slots.

According to the concept of the present invention, the secondary card and the primary card can be inserted into the two card slots respectively.

According to the present concept, the communication terminal is a mobile phone or a personal digital assistant (PDA).

According to the present concept, any of the secondary cards or the primary card includes a Subscriber Identity Module (SIM) card, a Universal Subscriber Identity Module (USIM) card, a User Identity Module (UIM) card, or a removable user identification module. Group (RUIM) card.

According to the present concept, any of the secondary cards or the primary card includes a WAP Identification Module (WIM).

According to the present concept, any of the secondary cards or the primary card includes a credit card, an ATM card, a leisure card, a cash card, or a stored value card.

According to the present concept, any of the secondary cards or the primary card includes an identification card, a memory card, a health insurance card, or a membership card.

According to the present concept, a detachable antenna coupled to the secondary card is further included.

According to the present invention, the antenna comprises a laminated inductive coil antenna or a planar antenna.

According to the present concept, a detachable antenna coupled to the main card is further included.

According to the present invention, the antenna comprises a laminated inductive coil antenna or a planar antenna.

According to the present concept, the system can be applied to an automated teller machine (ATM) or an end point sales system (POS) card reader.

According to another aspect of the present invention, a communication terminal having a dual card system includes a secondary card; and a primary card having a network security function coupled between the communication terminal and the secondary card, having a The processor is used to control the secondary card.

According to the concept of the present case, the network security function includes network access control, mail encryption, or electronic signature.

According to the present concept, the secondary card includes an expandable memory for increasing storage capacity.

According to the present concept, the secondary card includes a security function.

According to the concept of the case, the security function includes network security function, data security function, or data encryption.

According to the present concept, the communication terminal includes two card slots.

According to the concept of the present invention, the secondary card and the primary card can be inserted into the two card slots respectively.

According to the present concept, the communication terminal is a mobile phone or a personal digital assistant (PDA).

According to the present concept, any of the secondary cards or the primary card includes a Subscriber Identity Module (SIM) card, a Universal Subscriber Identity Module (USIM) card, a User Identity Module (UIM) card, or a removable user identification module. Group (RUIM) card.

According to the present concept, any of the secondary cards or the primary card includes a WAP Identification Module (WIM).

According to the present concept, any of the secondary cards or the primary card includes a credit card, an ATM card, a leisure card, a cash card, or a stored value card.

According to the present concept, any of the secondary cards or the primary card includes an identification card, a memory card, a health insurance card, or a membership card.

According to the present concept, a detachable antenna coupled to the secondary card is further included.

According to the present invention, the antenna comprises a laminated inductive coil antenna or a planar antenna.

According to the present concept, a detachable antenna coupled to the main card is further included.

According to the present invention, the antenna comprises a laminated inductive coil antenna or a planar antenna.

According to the present concept, the system can be applied to an automated teller machine (ATM) or an end point sales system (POS) card reader.

The present invention discloses a dual card system for use in a communication terminal or transaction terminal such as a mobile phone or a personal digital assistant (PDA), such as an automated teller machine (ATM) or a point-of-sale system (POS) card reader. . The above application will be explained in more detail below.

In this embodiment, the communication terminal has two card slots for simultaneously placing two different cards. The main feature of the present invention is that the two cards are not controlled by the communication terminal independently of those that have been widely used in the field. Instead, one card (referred to herein as a "sub-card") is controlled by another card (referred to herein as a "master card"). Thereby, manufacturing integrated circuit cards such as a Subscriber Identity Module (SIM) card, a Universal Subscriber Identity Module (USIM) card, a User Identity Module (UIM) card, a Mobile Subscriber Identity Module (RUIM) card, and the like The communication service provider will be able to lead the additional functions and services it wants to offer, such as additional fees and SIM Tool Kit (STK) applications, meaning mobile banking, mobile stock market trading and more.

See Figure 1. 1 is a block diagram of a dual card system in accordance with the present invention. The communication terminal 10 includes a pair of cards 12 and a main card 11. The main card 11 is electrically connected between the communication terminal 10 and the sub-card 12, and has a processor 13 for controlling the sub-card 12.

The primary card 11 or the secondary card 12 can be a communication card, such as a Subscriber Identity Module (SIM) card, a Universal Subscriber Identity Module (USIM) card, a User Identity Module (UIM) card, and a removable user identification module. Group (RUIM) card and so on. In addition, when the primary card 11 is a communication card, the secondary card 12 can also be a transaction card, such as a credit card, an ATM card, a cash card, a credit card, or a stored value card. On the contrary, when the secondary card 12 is a communication card, the primary card 11 can also be a transaction card. Similarly, the secondary card 12 or primary card 11 may include a wireless application agreement identification module (WIM) to provide security services for the WAP application.

The primary card 11 or the secondary card 12 may also be an identification card, a memory card, a health insurance card, or a membership card. The secondary card 12 has an expandable memory 14 for increasing storage capacity.

In addition, the main card 11 has network security functions such as network access control based on electronic signatures and private keys stored in the memory of the IC card, mail encryption, and electronic signature. The secondary card 12 has a security function, but the security function is not limited to the network security function described above, and may be a data security function, such as data encryption, to protect the data stored in the expandable memory 14 of the secondary card 12.

The primary card 11 or the secondary card 12 can have an antenna coupled thereto for remote wireless transactions between the communication terminal and the transaction terminal such as an automated teller machine (ATM) or a point-of-sale system (POS) card reader. . The antenna can be a laminated inductive coil antenna or a planar antenna. In the present invention, the antenna does not have to be fixedly connected to the main card 11 or the sub card 12. It can be a detachable antenna.

As described above, the secondary card 12 and the primary card 11 are not controlled by the communication terminal independently as those which have been widely used in the field. Instead, the secondary card 12 is controlled by the primary card 11. Therefore, upon receiving the request from the communication terminal 10, the processor 13 of the main card 11 determines whether or not the secondary card 12 is to be activated. In other words, the primary card 11 can control communication between the communication terminal 10 and the secondary card 12, and recombine the response signal of the secondary card 12 to the communication terminal 10 to implement its additional application, such as the second wireless communication telephone number. Registration and switching, SIM card application tool group (for example, mobile banking, mobile stock trading or WAP identification module (WIM) security functions, etc. The SIM card application tool group of the secondary card 12 is generally issued by the mobile operator. It can also be integrated by the service provider of the primary card 11 itself, such as a bank, a securities firm, a PKI certification unit (CA) or a second wireless mobile operator.

See Figure 2. 2 is a schematic diagram showing an integrated circuit card (ICC) 20 in accordance with the present invention. The standard specifications for integrated circuit cards used in communication terminals are still being updated. The standard specification used is the ISO-7816 standard. ISO is an abbreviation of International Standards Organization. ISO 7816-2 defines the size and location of the contacts and contains the standards for the number, function and orientation of electrical contacts, as shown in Table 1. The ICC 20 includes an integrated circuit die 21 having eight electrical contacts. These 8 electrical contacts are abbreviated as C1 to C8. However, not all of the eight contacts are electrically connected to the embedded microprocessor chip, and some are still unused.

See Figure 3. 3 is a block diagram of an integrated circuit die 21 incorporating a circuit card 20 in accordance with the present invention. The integrated circuit chip 21 includes a central processing unit (CPU) 32, a read only memory (ROM) 31, a random access memory (RAM) 33, a flash memory 35, and an electronic erasable stylized read-only memory ( The EEPROM 34 and the serial input/output (I/O) interface 36 are all internally connected via the data bus 37. The integrated circuit chip 21 is connected to a base station (not shown) via eight contacts C1-C8 as interfaces. The contact C1 is connected to the supply voltage (Vcc), the contact C2 receives the reset signal (RST), the contact C3 receives the clock signal (CLK), the contact C5 is grounded (GND), and the contact C6 is connected to the programming voltage (Vpp). ), the contact C7 is connected to the I/O interface of the base station. As shown in FIG. 3, the contacts C4 and C8 of the integrated circuit chip 21 have not been used yet.

The CPU 32, like the heart of the SIM card 20, implements the actual data processing operations and basic control operations of the SIM card 20. The ROM 31 contains the operating system of the SIM card 20, which is burned into the ROM 31 to avoid being arbitrarily changed. The RAM 33 is a working volatile memory of the CPU 31. When the power to the SIM card 20 is cut off, all data stored in the RAM 33 will be lost. The EEPROM 34 is a non-volatile memory. Under the control of the CPU 32, data can be written and read from the EEPROM 34. The data stored in the EEPROM 34 can survive several power cycles, so that when the power to the SIM card 20 is cut off, the data is not lost. Various basic files associated with the SIM card 20, such as speed dial and extension recording, are stored in the EEPROM 34. The flash memory 35 is a non-volatile program memory. Under the control of the CPU 32, the code can be written and read from the flash memory 35. Similar to the EEPROM 34, the code stored in the flash memory 35 can survive several power cycles, and the data is not deleted when the power to the SIM card 20 is cut off. However, there is a difference between the flash memory 35 and the EEPROM 34, that is, the code in the flash memory 35 can be deleted at one time, and the data stored in the EEPROM 34 can only delete one byte at a time. The I/O interface 36 can be a serial input/output interface used by a conventional ISO 7816 between a communication base station (not shown) and the CPU 32.

As described above, the contacts C4 and C8 on the integrated circuit chip 21 are not yet used, and therefore, the connection between the secondary card 12 and the primary card 11 can be electrically connected via the contact C4 or the contact C8.

The present invention has been described in detail by the above-described embodiments, and may be modified by those skilled in the art, without departing from the scope of the appended claims.

10. . . Communication terminal

11. . . Master Card

12. . . Secondary card

13. . . processor

14. . . Expanded memory

20. . . Integrated circuit card

twenty one. . . Integrated circuit chip

31. . . Read only memory (ROM)

32. . . Central processing unit (CPU)

33. . . Random access memory (RAM)

34. . . Electronically erasable stylized read-only memory (EEPROM)

35. . . Flash memory

36. . . Input/output (I/O) interface

37. . . Busbar

Those skilled in the art will be able to obtain a clearer understanding by the following figures and embodiments.

1 is a block diagram of a dual card system in accordance with the present invention; FIG. 2 is a block diagram showing an integrated circuit card in accordance with the present invention; and FIG. 3 is a block diagram showing an integrated circuit chip showing integrated circuit cards in accordance with the present invention.

10. . . Communication terminal

11. . . Master Card

12. . . Secondary card

13. . . processor

14. . . Expanded memory

Claims (30)

A dual card system for a communication terminal, comprising: a pair of cards; and a main card having a network security function connected between the communication terminal and the secondary card, having a processor for controlling the pair Card, wherein the communication terminal comprises two card slots for the sub card and the main card to be inserted separately; and wherein the main card is controlled by the communication terminal, and the sub card is controlled by the main card Therefore, the secondary card cannot be directly controlled by the communication terminal. For example, the dual card system of claim 1 of the patent scope, wherein the network security function includes network access control, mail encryption, or electronic signature. The dual card system of claim 1, wherein the secondary card includes an expandable memory for increasing storage capacity. For example, the dual card system of claim 1 of the patent scope, wherein the secondary card includes a security function. For example, the dual-card system of claim 4, wherein the security function includes a network security function, a data security function, or data encryption. For example, the dual card system of claim 1 is wherein the communication terminal is a mobile phone or a personal digital assistant (PDA). For example, in the dual card system of claim 1, the secondary card or the primary card includes a subscriber identity module (SIM) card, a universal subscriber identity module (USIM) card, and a subscriber identity module (UIM). Card, or removable user identification module (RUIM) card. For example, in the dual card system of claim 1, the secondary card or the primary card includes a WAP identification module (WIM). For example, in the dual card system of claim 1, the secondary card or the primary card includes a credit card, an ATM card, a leisure card, a cash card, or a stored value card. For example, in the dual card system of claim 1, the secondary card or the primary card includes an identification card, a memory card, a health insurance card, or a membership card. A dual card system as claimed in claim 1 further comprising a detachable antenna coupled to the secondary card. A dual card system as claimed in claim 13 wherein the antenna comprises a laminated inductive coil antenna or a planar antenna. A dual card system as claimed in claim 1 further comprising a detachable antenna coupled to the main card. A dual card system as claimed in claim 15 wherein the antenna comprises a laminated inductive coil antenna or a planar antenna. For example, the dual card system of claim 1 is applicable to an automatic teller machine (ATM) or an end point sales system (POS) card reader. A communication terminal having a dual card system, comprising: a pair of cards; and a main card having a network security function connected between the communication terminal and the secondary card, and having a processor for controlling the secondary card The communication terminal includes two card slots for the sub card and the main card to be inserted separately; The primary card is controlled by the communication terminal, and the secondary card is controlled by the primary card, so that the secondary card cannot be directly controlled by the communication terminal. For example, the communication terminal of claim 16 wherein the network security function includes network access control, mail encryption, or electronic signature. The communication terminal of claim 16, wherein the secondary card includes an expandable memory for increasing storage capacity. For example, the communication terminal of claim 16 wherein the secondary card includes a security function. For example, the communication terminal of claim 19, wherein the security function includes a network security function, a data security function, or data encryption. For example, the communication terminal of claim 16 wherein the communication terminal is a mobile phone or a personal digital assistant (PDA). For example, in the communication terminal of claim 16, any one of the secondary cards or the primary card includes a subscriber identity module (SIM) card, a universal subscriber identity module (USIM) card, and a subscriber identity module (UIM). Card, or removable user identification module (RUIM) card. For example, in the communication terminal of claim 16, the secondary card or the primary card includes a WAP identification module (WIM). For example, in the communication terminal of claim 16, any one of the secondary cards or the primary card includes a credit card, an ATM card, a leisure card, a cash card, or a stored value card. For example, the communication terminal of claim 16 of the patent scope, any of which The card or the primary card includes an identification card, a memory card, a health insurance card, or a membership card. The communication terminal of claim 16 further comprising a detachable antenna coupled to the secondary card. The communication terminal of claim 26, wherein the antenna comprises a laminated induction coil antenna or a planar antenna. The communication terminal of claim 16 further comprising a detachable antenna coupled to the main card. The communication terminal of claim 28, wherein the antenna comprises a laminated induction coil antenna or a planar antenna. A communication terminal as claimed in claim 16 wherein the system is applicable to an automated teller machine (ATM) or an end point sales system (POS) card reader.