Non-contact type semiconductor device, mobile terminal device, and communication system

• US 20070226501A1
• Filed: 12/20/2005
• Published: 09/27/2007
• Est. Priority Date: 01/11/2005
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Saitoh, Kei
• Granted Patent: US 8,112,795 B2
• Time in Patent Office: Days
• US Class Current: 713/170
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Abstract

There are provided a non-contact type semiconductor device, a mobile terminal device, and a communication system capable of suppressing unauthorized read, thereby assuring security. The non-contact type semiconductor device records information for identifying a read device of a communication destination and a request from a read device in a recording area. Moreover, the non-contact type semiconductor device holds authentication information and access authority, requests the read device to send authentication information, correlates the authentication information with the authentication information and access authority held, and executes the request from the read device according to the correlation result. Furthermore, by performing mutual communication by using the read device, the non-contact type semiconductor device, and a mobile terminal device using the non-contact type semiconductor device, it is possible to suppress unauthorized read, thereby assuring security.

Claims

1. A non-contact type semiconductor device comprising:

a transmission/reception unit that communicates with a read device by wireless; and

a storage unit that stores information to identify the read device.

2. The non-contact type semiconductor device as defined in claim 1, wherein the information to identify the read device includes identifying information to be used for authentication.

3. The non-contact type semiconductor device as defined in claim 1, wherein the storage unit stores a request issued from the read device.

4. The non-contact type semiconductor device as defined in claim 1, further comprising:

a control unit that judges whether the transmission/reception unit has received the information to identify the read device and executes the request from the read device according to the result of the judgment.

5. The non-contact type semiconductor device as defined in claim 1, further comprising:

an authenticating information storage unit that stores information to identify a read device as authenticating information;

an authentication unit that authenticates by comparing information to identify the read device received by the transmission/reception unit and authenticating information stored in the authenticating information storage unit; and

a control unit that executes a request from the read device according to the authentication result of the authentication unit.

6. The non-contact type semiconductor device as defined in claim 1, further comprising:

an authenticating information storage unit that stores access authority and information to identify a read device being correlated with each other;

a judging unit that judges whether access authority corresponding to information to identify the read device received by the transmission/reception unit permits a request from the read device by referring to the authenticating information storage unit; and

a control unit that executes a request from the read device according to the judgment result of the judging unit.

7. The non-contact type semiconductor device as defined in claim 6, wherein the control unit, when an editing request is issued from the read device, executes the specified editing request to the authenticating information storage unit only in the case where the judging unit judges that the access authority of the read device permits the editing request.

8. The non-contact type semiconductor device as defined in claim 7, wherein the control unit, when the editing request is an adding request, adds information to identify a specified read device and access authority to the authenticating information storage unit.

9. The non-contact type semiconductor device as defined in claim 7, wherein the control unit, when the editing request is a replacing request, replaces information to identify a specified read device and access authority to the authenticating information storage unit.

10. The non-contact type semiconductor device as defined in claim 7, wherein the control unit, when the editing request is a deleting request, deletes information to identify a specified read device or invalidates access authority corresponding to information to identify a specified read device to the authenticating information storage unit.

11. The non-contact type semiconductor device as defined in claim 7, wherein the control unit, when the editing request is a disposing request, invalidates access authority of all read devices recorded to the authenticating information storage unit.

12. The non-contact type semiconductor device as defined in claim 11, wherein the authenticating information storage unit is caused to have a region to which access authority can not be edited and, even when a disposing request is issued from the read device, the contents of the non-editable region of the authenticating information storage unit is saved.

13. The non-contact type semiconductor device as defined in claim 7, wherein the control unit, when the editing request is to add one or more read devices, adds information to identify a plurality of specified read devices and access authority to the authenticating information storage unit.

30. A communication system comprising the non-contact type semiconductor device of claim 1 and a read device that communicates by wireless, wherein

the non-contact type semiconductor device comprises a transmission/reception unit that communicates with the read device by wireless and a storage unit that stores information to identify the read device that the transmission/reception unit communicates with, and wherein

the read device transmits information to identify the read device when the read device starts communication with the non-contact type semiconductor device.

31. The communication system as defined in claim 30, wherein the non-contact type semiconductor device comprises:

an authenticating information storage unit that stores access authority and information to identify a read device being correlated with each other;

a judging unit that judges whether access authority corresponding to information to identify the read device received by the transmission/reception unit permits a request from the read device by referring to the authenticating information storage unit; and

a control unit that executes a request from the read device according to the judgment result of the judging unit, wherein

the read device stores information to identify one or more read device(es) for each type of item, extracts information to identify one or more read device(es) corresponding to type of item that is attached with a con-contact type semiconductor device which is a communication destination and, wherein

when the read device transmits information to identify the read device, the extracted information to identify the one or more read device(es), and an adding request, the non-contact type semiconductor device adds information to identify the specified one or more read device(es) to the authenticating information storage unit in the case where access authority corresponding to information to identify a read device permits an adding request.

14. A mobile terminal device comprising:

a transmission/reception unit that communicates with a read device by wireless; and

a storage unit that stores information to identify the read device.

15. The mobile terminal device as defined in claim 14, wherein the information to identify the read device includes identifying information to be used for authentication.

16. The mobile terminal device as defined in claim 14, wherein the storage unit stores a request issued from the read device.

17. The mobile terminal device as defined in claim 14, wherein the non-contact type semiconductor device comprises a control unit that judges whether the transmission/reception unit has received the information to identify the read device and executes the request from the read device according to the result of the judgment.

18. The mobile terminal device as defined in claim 17, further comprising:

a reporting unit that reports externally the judgment result that judges whether the control unit of the non-contact type semiconductor device has received the information to identify a read device.

19. The mobile terminal device as defined in claim 14, wherein the non-contact type semiconductor device comprises:

an authenticating information storage unit that stores information to identify a read device as authenticating information;

an authentication unit that authenticates by comparing information to identify the read device received by the transmission/reception unit and authenticating information stored in the authenticating information storage unit; and

a control unit that executes a request from the read device according to the authentication result of the authentication unit.

20. The mobile terminal device as defined in claim 19, further comprising:

a reporting unit that reports externally the authentication result that is authenticated by the authentication unit of the non-contact type semiconductor device.

21. The mobile terminal device as defined in claim 14, wherein the non-contact type semiconductor device comprises:

an authenticating information storage unit that stores access authority and information to identify a read device being correlated with each other;

a judging unit that judges whether access authority corresponding to information to identify the read device received by the transmission/reception unit permits a request from the read device by referring to the authenticating information storage unit; and

a control unit that executes a request from the read device according to the judgment result of the judging unit.

22. The mobile terminal device as defined in claim 21, wherein a reporting unit that reports externally the judgment result judged by the judging unit of the non-contact type semiconductor device is provided.

23. The mobile terminal device as defined in claim 21, wherein the control unit of the non-contact type semiconductor device, when an editing request is issued from the read device, executes the specified editing request to the authenticating information storage unit only in the case where the judging unit judges that the access authority of the read device permits the editing request.

24. The mobile terminal device as defined in claim 23, wherein the control unit of the non-contact type semiconductor device, when the editing request is an adding request, adds information to identify a specified read device and access authority to the authenticating information storage unit.

25. The mobile terminal device as defined in claim 23, wherein the control unit of the non-contact type semiconductor device, when the editing request is a replacing request, replaces information to identify a specified read device and access authority to the authenticating information storage unit.

26. The mobile terminal device as defined in claim 23, wherein the control unit of the non-contact type semiconductor device, when the editing request is a deleting request, deletes information to identify a specified read device or causes access authority to be lost which corresponds to information to identify a specified read device to the authenticating information storage unit.

27. The mobile terminal device as defined in claim 23, wherein the control unit of the non-contact type semiconductor device, when the editing request is a disposing request, invalidates access authority of all read devices recorded to the authenticating information storage unit.

28. The mobile terminal device as defined in claim 27, wherein the non-contact type semiconductor device is caused to have, in the authenticating information storage unit, a region to which access authority can not be edited and, even when a disposing request is issued from the read device, the contents of the non-editable region of the authenticating information storage unit is saved.

29. The mobile terminal device as defined in claim 23, wherein the control unit of the non-contact type semiconductor device, when the editing request is to add one or more read devices, adds information to identify a plurality of specified read devices and access authority to the authenticating information storage unit.