Electronic key system, apparatus and method

• US 6,975,202 B1
• Filed: 11/21/2000
• Issued: 12/13/2005
• Est. Priority Date: 11/21/2000
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Spinac, Clifford Jay, Rodriguez, Herman, Smith, Newton James Jr.
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): BROWN, VERNAL U
• Application Number:
  US09/717,521
• Time in Patent Office: 1,848 Days
• Field of Search: 340/5.25, 340/5.53, 340/5.61, 340/5.64, 340/5.67, 340/542, 340/552, 340/10.1, 340/10.24, 340/5.23, 340/5.2
• US Class Current: 340/5.25
• CPC Class Codes: G07C 2009/00769 with data transmission performed by wireless means
• CPC Class Codes: G07C 2009/0088 centrally
• CPC Class Codes: G07C 2209/08 With time considerations, e.g. temporary activation, valid time window or time limitations
• CPC Class Codes: G07C 9/00571 operated by interacting with a central unit
• CPC Class Codes: G07C 9/00857 where the code of the data carrier can be programmed
• CPC Class Codes: G07C 9/00904 for hotels, motels, office buildings or the like
• CPC Class Codes: G07C 9/27 with central registration

Abstract

A system, apparatus and method for using an electronic key to open electronic locking devices is provided. With the system, apparatus and method, a key code is sent to a user'"'"'s wireless communication device and is later used to open a corresponding locking device. The key code is generated by a key supplier based on a master key obtained from a master key supplier, e.g. an electronic lock manufacturer. The key code may include a master key portion, a secondary key portion, an activation/expiration portion, a wireless device identifier portion, a time of issue portion, and a time of last use portion.

Claims

1. A method of operating an electronic locking device using a wireless communication device, comprising:

receiving a master key code from a master key supplier;

generating a secondary key code from the master key code;

transmitting the secondary key code to the wireless communication device; and

transmitting the secondary key code to the electronic locking device, wherein the secondary key code is used by the wireless communication device to operate the electronic locking device in lieu of by a tangible device.

2. The method of claim 1, wherein the secondary key code includes a secondary key code portion, an activation/expiration portion, a wireless communication device identification portion that identifies the wireless communication device, a time of issue portion, and a time of last use portion.

3. The method of claim 1, wherein the master key code is received via at least one network.

4. The method of claim 1, further comprising:

sending a master key code request to the master key supplier, the master key code request identifying one or more of a key supplier identifier, a product code of the electronic locking device, an electronic certificate, and a password.

5. The method of claim 1, wherein transmitting the secondary key code to the electronic locking device includes transmitting the secondary key code based on a network address of the electronic locking device.

6. The method of claim 1, wherein transmitting the secondary key code to the electronic locking device includes broadcasting the secondary key code along with an identifier of the electronic locking device.

7. The method of claim 1, wherein the wireless communication device is one of a personal digital assistant, a two-way pager, a mobile telephone device, a wireless transmitter, a handheld computer, a laptop computer, and a Bluetooth™

enabled device.

8. The method of claim 1, wherein transmitting the secondary key code to the wireless communication device includes transmitting the secondary key code using at least one of a wireless communication link and a wired communication link.

9. The method of claim 1, wherein transmitting the secondary key code to the wireless communication device includes transmitting the secondary key code as an attachment to an electronic mail message.

10. The method of claim 9, wherein the electronic mail message is sent to the wireless communication device at a remote time from use of the secondary key code to operate the electronic locking device.

11. The method of claim 1, further comprising receiving a confirmation message from the electronic locking device confirming reprogramming of the electronic locking device to accept the secondary key code.

12. The method of claim 1, wherein the electronic locking device is preprogrammed to accept the secondary key code.

13. The method of claim 1, wherein transmitting the secondary key code to the electronic locking device is performed at a remote time from transmitting the secondary key code to the wireless communication device.

14. The method of claim 1, wherein the wireless communication device is a wireless communication device owned by a user.

15. The method of claim 2, wherein the secondary key code portion the activation/expiration portion, the wireless communication device identification portion, the time of issue portion, and the time of last use portion are encoded.

16. The method of claim 1, further comprising maintaining a record of secondary key codes used to access the electronic locking device.

17. The method of claim 1, wherein generating a secondary key code from the master key code includes at least one of using a random number generator, using a key code algorithm, and using one of a plurality of key code generator algorithms chosen in a random or pseudo-random manner.

18. The method of claim 3, wherein the at least one network is the Internet.

19. The method of claim 1, further comprising:

polling the electronic locking device; and

receiving status information from the electronic locking device in response to polling the electronic locking device.

20. The method of claim 19, wherein the status information includes at least one of a current status of the electronic locking device, a time at which operation of the electronic locking device was last attempted, a key code last used to attempt to operate the electronic locking device, and a wireless communication device identifier of a wireless communication device last used to attempt to operate the electronic locking device.

21. The method of claim 19, further comprising operating the electronic locking device based on the received status information.

22. A method of operating an electronic locking device using a wireless communication device, comprising:

receiving a master key code from a master key supplier;

generating a secondary key code from the master key code;

transmitting the secondary key code to the wireless communication device, wherein the secondary key code is used by the wireless communication device to operate the electronic locking device in lieu of by a tangible device;

receiving a key code from the wireless communication device;

authenticating the key code based on the secondary key code; and

transmitting a command to operate the electronic locking device if the key code is authentic.

23. The method of claim 22, further comprising:

determining if a number of attempts to operate the electronic locking device within a predetermined period of time exceeds a threshold; and

placing the electronic locking device in a safety mode if the number of attempts exceeds the threshold.

24. The method of claim 23, wherein the safety mode is one of a slow down mode and a freeze mode.

25. The method of claim 22, wherein authenticating the key code includes performing a comparison of the key code to information stored in a key code table.

26. The method of claim 25, wherein the key code table includes an entry for the electronic locking device, and wherein the entry includes one or more of a valid secondary key code, activation/expiration information, and wireless communication device identification information.

27. The method of claim 22, wherein authenticating the key code based on the secondary key code includes determining an activation/expiration time of the secondary key code and determining if a current time is within the activation/expiration time.

28. An apparatus for operating an electronic locking device using a wireless communication device, comprising:

means for receiving a master key code from a master key supplier;

means for generating a secondary key code from the master key code;

first means for transmitting the secondary key code to the wireless communication device, wherein the secondary key code is used by the wireless communication device to operate the electronic locking device in lieu of by a tangible device; and

second means for transmitting the secondary key code to the electronic locking device using at least one of a wired communication link and wireless communication link.

29. The apparatus of claim 28, wherein the master key code is received from the master key supplier via at least one network.

30. The apparatus of claim 28, further comprising:

means for sending a master key code request to the master key supplier, the master key code request identifying one or more of a key supplier identifier, a product code of the electronic locking device, an electronic certificate, and a password.

31. The apparatus of claim 28, wherein the second means for transmitting the secondary key code to the electronic locking device includes means for transmitting the secondary key code based on a network address of the electronic locking device.

32. The apparatus of claim 28, wherein the second means for transmitting the secondary key code to the electronic locking device includes means for broadcasting the secondary key code along with an identifier of the electronic locking device.

33. The apparatus of claim 28, wherein the wireless communication device is one of a personal digital assistant, a two-way pager, a mobile telephone device, a wireless transmitter, a handheld computer, a laptop computer, and a Bluetooth™

enabled device.

34. The apparatus of claim 28, wherein the first means for transmitting the secondary key code to the wireless communication device includes means for transmitting the secondary key code using at least one of a wireless communication link and a wired communication link.

35. The apparatus of claim 28, wherein the first means for transmitting the secondary key code to the wireless communication device includes means for transmitting the secondary key code as an attachment to an electronic mail message.

36. The apparatus of claim 35, wherein the electronic mail message is sent to the wireless communication device at a remote time from use of the secondary key code to operate the electronic locking device.

37. The apparatus of claim 28, further comprising means for receiving a confirmation message from the electronic locking device confirming reprogramming of the electronic locking device to accept the secondary key code.

38. The apparatus of claim 28, wherein the electronic locking device is preprogrammed to accept the secondary key code.

39. The apparatus of claim 28, wherein the second means for transmitting the secondary key code to the electronic locking device performs the transmission at a remote time from transmitting the secondary key code to the wireless communication device.

40. The apparatus of claim 28, wherein the wireless communication device is a wireless communication device owned by a user.

41. The apparatus of claim 28, further comprising means for maintaining a record of secondary key codes used to access the electronic locking device.

42. The apparatus of claim 28, wherein the means for generating a secondary key code from the master key code includes at least one of using a random number generator, using a key code algorithm, and using one of a plurality of key code generator algorithms chosen in a random or pseudo-random manner.

43. The apparatus of claim 29, wherein the at least one network is the Internet.

44. The apparatus of claim 28, further comprising:

means for polling the electronic locking device; and

means for receiving status information from the electronic locking device in response to polling the electronic locking device.

45. The apparatus of claim 44, wherein the status information includes at least one of a current status of the electronic locking device, a time at which operation of the electronic locking device was last attempted, a key code last used to attempt to operate the electronic locking device, and a wireless communication device identifier of a wireless communication device last used to attempt to operate the electronic locking device.

46. An apparatus for operating an electronic locking device using a wireless communication device, comprising:

means for receiving a master key code from a master key supplier;

means for generating a secondary key code from the master key code; and

first means for transmitting the secondary key code to the wireless communication device, wherein the secondary key code is used by the wireless communication device to operate the electronic locking device in lieu of by a tangible device, wherein the secondary key code includes a secondary key code portion an activation/expiration portion, a wireless communication device identification portion that identifies the wireless communication device, a time of issue portion, and a time of last use portion.

47. The apparatus of claim 46, wherein the secondary key code portion and the one or more of a master key code portion, an activation/expiration portion, a wireless communication device identification portion, a time of issue portion, and a time of use portion are encoded.

48. An apparatus for operating an electronic locking device using a wireless communication device, comprising:

means for receiving a master key code from a master key supplier;

means for generating a secondary key code from the master key code;

first means for transmitting the secondary key code to the wireless communication device, wherein the secondary key code is used by the wireless communication device to operate the electronic locking device in lieu of by a tangible device;

means for receiving a key code from the wireless communication device;

means for authenticating the key code based on the secondary key code; and

means for transmitting a command to operate the electronic locking device if the key code is authentic.

49. The apparatus of claim 48, further comprising:

means for determining if a number of attempts to operate the electronic locking device within a predetermined period of time exceeds a threshold; and

means for placing the electronic locking device in a safety mode if the number of attempts exceeds the threshold.

50. The apparatus of claim 49, wherein the safety mode is one of a slow down mode and a freeze mode.

51. The apparatus of claim 48, wherein the means for authenticating the key code includes means for performing a comparison of the key code to information stored in a key code table.

52. The apparatus of claim 51, wherein the key code table includes an entry for the electronic locking device, and wherein the entry includes one or more of a valid secondary key code, activation/expiration information, and wireless communication device identification information.

53. The apparatus of claim 48, wherein the means for authenticating the key code based on the secondary key code includes determining an activation/expiration time of the secondary key code and determining if a current time is within the activation/expiration time.

54. A computer program product in a computer readable medium for operating an electronic locking device using a wireless communication device, comprising:

first instructions for receiving a master key code from a master key supplier;

second instructions for generating a secondary key code from the master key code; and

third instructions for transmitting the secondary key code to the wireless communication device, wherein the secondary key code is transmitted from the wireless communication device to the electronic locking device to operate the electronic locking device.