Dual card system

• US 7,866,564 B2
• Filed: 05/18/2007
• Issued: 01/11/2011
• Est. Priority Date: 02/04/2005
• Status: Expired due to Fees

• Current Assignee: Chun-Hsin Ho
• Original Assignee: Chun-Hsin Ho
• Inventors: Ho, Chun-Hsin
• Primary Examiner(s): Le; Thien M.
• Assistant Examiner(s): ANDERSON JR, WILLIAM MICHAEL
• Application Number:
  US11/798,963
• Publication Number:
  US 20080029609A1
• Time in Patent Office: 1,334 Days
• Field of Search: 235/380, 235/435, 235/441, 235/487, 235/492, 713/189, 729/229, 439/630
• US Class Current: 235/492
• CPC Class Codes: G06K 19/073 Special arrangements for circuits, e.g. for protecting identification code in memory protection against unauthorised use of computer memory G06F12/14

Abstract

A dual card system for use in a communication terminal is disclosed. The dual card system includes a slave card and a master card. The master card is provided with a network security function and is connected between the communication terminal and the slave card, and has a processor for controlling the slave card.

Claims

1. A dual card system for use in a communication terminal having two card sockets, comprising:

a slave card; and

a master card provided with a network security function, connected between said communication terminal and said slave card, having a processor for controlling said slave card,

wherein said master card is controlled by said communication terminal and said slave card is controlled by said master card, such that said slave card can not be directly controlled by said communication terminal, and wherein said slave card and said master card can be inserted into said two card sockets, respectively.

2. The dual card system according to claim 1, wherein said network security function comprises network access control, mail encryption, or electronic signature.

3. The dual card system according to claim 1, wherein said slave card comprises an extensible memory for increasing storage capacity.

4. The dual card system according to claim 1, wherein said slave card comprises a security function.

5. The dual card system according to claim 4, wherein said security function comprises a network security function, data security function, or data encryption.

6. The dual card system according to claim 1, wherein said communication terminal is a mobile phone or a personal digital assistant (PDA).

7. The dual card system according to claim 1, wherein either of said slave card and said master card comprises a Subscriber Identity Module (SIM) card, universal SIM (USIM) card, User Identity Module (UIM) card, or Removable User Identity Module (RUIM) card.

8. The dual card system according to claim 1, wherein either of said slave card and said master card comprises a WAP identity module (WIM).

9. The dual card system according to claim 1, wherein either of said slave card and master card comprises a credit card, ATM card, easy card, debit card, or stored value card.

10. The dual card system according to claim 1, wherein either of said slave card and master card comprises an identification card, a memory card, a health insurance card, or a membership card.

11. The dual card system according to claim 1, further comprising an antenna detachably coupled to said slave card.

12. The dual card system according to claim 11, wherein said antenna comprises a laminated induction coil antenna or a planar antenna.

13. The dual card system according to claim 1, further comprising an antenna detachably coupled to said master card.

14. The dual card system according to claim 13, wherein said antenna comprises a laminated induction coil antenna or a planar antenna.

15. The dual card system according to claim 1, wherein said system can be applied to an automatic teller machine (ATM) or a point of sales (POS) card reader.

16. A communication terminal having two card sockets and a dual card system which comprises:

a slave card; and

a master card provided with a network security function, connected between said communication terminal and said slave card, having a processor for controlling said slave card,

wherein said master card is controlled by said communication terminal and said slave card is controlled by said master card, such that said slave card can not be directly controlled by said communication terminal, and wherein said slave card and said master card can be inserted into said two card sockets, respectively.

17. The communication terminal according to claim 16, wherein said network security function comprises network access control, mail encryption, or electronic signature.

18. The communication terminal according to claim 16, wherein said slave card comprises an extensible memory for increasing storage capacity.

19. The communication terminal according to claim 16, wherein said slave card comprises a security function.

20. The communication terminal according to claim 19, wherein said security function comprises a network security function, data security function, or data encryption.

21. The communication terminal according to claim 16, wherein said communication terminal is a mobile phone or a personal digital assistant (PDA).

22. The communication terminal according to claim 16, wherein either of said slave card and master card comprises a Subscriber Identity Module (SIM) card, universal SIM (USIM) card, User Identity Module (UIM) card, or Removable User Identity Module (RUIM) card.

23. The communication terminal according to claim 16, wherein either of said slave card and said master card comprises a WAP identity module (WIM).

24. The communication terminal according to claim 16, wherein either of said slave card and master card comprises a credit card, ATM card, easy card, debit card, or stored value card.

25. The communication terminal according to claim 16, wherein either of said slave card and master card comprises an identification card, a memory card, a health insurance card, or a membership card.

26. The communication terminal according to claim 16, further comprising an antenna detachably coupled to said slave card.

27. The communication terminal according to claim 26, wherein said antenna comprises a laminated induction coil antenna or a planar antenna.

28. The communication terminal according to claim 16, further comprising an antenna detachably coupled to said master card.

29. The communication terminal according to claim 28, wherein said antenna comprises a laminated induction coil antenna or a planar antenna.

30. The communication terminal according to claim 16, wherein said system can be applied to an automatic teller machine (ATM) or a point of sales (POS) card reader.