Telephone device capable of preventing unauthorized transmission when sending messages

• US 6,792,088 B2
• Filed: 12/13/2002
• Issued: 09/14/2004
• Est. Priority Date: 12/28/2001
• Status: Expired due to Term

• Current Assignee: Lenovo Innovations Ltd Hong Kong (Lenovo Group Ltd.)
• Original Assignee: NEC Corporation
• Inventors: Takeuchi, Nozomi
• Primary Examiner(s): WOO, STELLA L
• Application Number:
  US10/318,245
• Publication Number:
  US 20030123625A1
• Time in Patent Office: 641 Days
• Field of Search: 379/93.03, 379/93.02, 379/188, 379/199, 379/200, 455/410, 455/411, 455/557, 455/565
• US Class Current: 379/93.03
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 1/7243 with interactive means for internal management of messages
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

A cellular phone decides with a transmission category decision portion whether a message is sent from an external device or from the cellular phone. In the case where the message is sent from the external device, a personal identification number comparison portion compares the personal identification number sent from the external device with a predetermined personal identification number. A control portion permits the message to be sent from the external device only when the two personal identification numbers correspond to each other.

Claims

1. A telephone device that is connected to external device, said telephone device comprising:

storing means for storing a first personal data;

judging means for judging whether said external device demands to send a message;

requesting means for requesting a second personal data from said external device after said demand from said external device;

receiving means for receiving said second personal data from said external device; and

controlling means for controlling the demand to send said message if a predetermined condition is satisfied when said external device demands to send said message.

2. The telephone device as claimed in claim 1, further comprising:

comparing means for comparing said first personal data and said second personal data for said controlling means.

3. The telephone device as claimed in claim 2, wherein said predetermined condition is that said first personal data is equal to said second personal data.

4. The telephone device as claimed in claim 3, wherein said first personal data and said second personal data are personal identification numbers, respectively.

5. The telephone device as claimed in claim 4, wherein said telephone device is connected with said external device via a predetermined wireless protocol.

6. The telephone device as claimed in claim 5, wherein said predetermined wireless protocol is Bluetooth.

7. The telephone device as claimed in claim 5, wherein said telephone device is a cellular phone.

8. A communication unit, comprising:

an external device comprising outputting means for outputting demands to send a message; and

a telephone device comprising storing means for storing a first personal data;

judging means for judging whether said external device demands to send said message;

requesting means for requesting a second personal data from said external device after said demand from said external device;

receiving means for receiving said second personal data from said external device; and

controlling means for controlling the sending of said message if a predetermined condition is satisfied when said external device demands to send said message.

9. The communication unit as claimed in claim 8, wherein said telephone device further comprises:

comparing means for comparing said first personal data and said second personal data for said controlling means.

10. The communication unit as claimed in claim 9, wherein said predetermined condition is that said first personal data is equal to said second personal data.

11. The communication unit as claimed in claim 10, wherein said first personal data and said second personal data are personal identification numbers, respectively.

12. The communication unit as claimed in claim 11, wherein said telephone device is connected with said external device via a predetermined wireless protocol.

13. The communication unit as claimed in claim 12, wherein said predetermined wireless protocol is Bluetooth.

14. The communication unit as claimed in claim 13, wherein said telephone device is a cellular phone, and said external device is a computer.

15. A method for controlling the sending of a message from a telephone device, said method comprises:

connecting between said telephone device and an external device;

receiving a demand for sending said message from said external device;

requesting the external device to send a first personal data to said telephone device;

comparing said first personal data sent from said external device with a predetermined second personal data; and

sending said message when said first personal data and said predetermined second personal data correspond to each other.

16. The method as claimed in claim 15, wherein said method further comprises storing said predetermined second personal data in said telephone device.

17. The method as claimed in claim 16, wherein said method further comprises:

counting time since requiring said external device to send said first personal data to said telephone device; and

canceling transmission of said message when a predetermined time has elapsed.

18. The method as claimed in claim 17, wherein said first personal data and said predetermined second personal data are personal identification numbers, respectively.

19. The method as claimed in claim 18, wherein said telephone device is connected with said external device via a predetermined wireless protocol.

20. The method as claimed in claim 19, wherein said predetermined wireless protocol is Bluetooth.

21. The method as claimed in claim 19, wherein said telephone device is a cellular phone and said external device is a computer.

22. A telephone device which is connected with an external device, said telephone device comprising:

a memory that stores first personal data;

judging circuit that judges whether said external device is demanding to send a message;

requesting circuit for requesting a second personal data from said external device after said demand from said external device;

receiver that receives said second personal data from said external device; and

controller that controls the sending of said message if a predetermined condition is satisfied when said external device demands to send said message.

23. The telephone device as claimed in claim 22, further comprising:

comparator that compares said first personal data and said second personal data for said controller.

24. The telephone device as claimed in claim 23, wherein said predetermined condition is that said first personal data is equal to said second personal data.

25. The telephone device as claimed in claim 24, wherein said first personal data and said second personal data are personal identification numbers respectively.

26. The telephone device as claimed in claim 25, wherein said telephone device is connected with said external device via a predetermined wireless protocol.

27. The telephone device as claimed in claim 26, wherein said predetermined wireless protocol is Bluetooth.

28. The telephone as claimed in claim 26, wherein said telephone device is a cellular phone.

29. A communication unit, comprising:

an external device comprising an output circuit that outputs demands to send a message; and

a telephone device comprising;

a memory that stores a first personal data;

a judging circuit that judges whether said external device is demanding to send said message;

a requesting circuit for requesting a second personal data from said external device after said demand from said external device;

a receiver that receives said second personal data from said external device; and

a controller that controls the sending of said message if a predetermined condition is satisfied when said external device demands to send said message.

30. The communication unit as claimed in claim 29, wherein said telephone device further comprises:

a comparator that compares said first personal data and said second personal data for said controller.

31. The communication unit as claimed in claim 30, wherein said predetermined condition is that said first personal data is equal to said second personal data.

32. The communication unit as claimed in claim 31, wherein said first personal data and said second personal data are personal identification numbers, respectively.

33. The communication unit as claimed in claim 31, wherein said telephone device is connected with said external device via a predetermined wireless protocol.

34. The telephone device as claimed in claim 33, wherein said predetermined wireless protocol is Bluetooth.

35. The communication unit as claimed in claim 33, wherein said telephone device is a cellular phone, and said external device is a computer.