Programmable electronic locking device

• US 6,331,812 B1
• Filed: 07/21/1997
• Issued: 12/18/2001
• Est. Priority Date: 01/25/1995
• Status: Expired due to Term

• Current Assignee: Electronic Key Systems SARL
• Original Assignee: Electronic Key Systems SARL
• Inventors: Dawalibi, Nofal
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): DaLencourt, Yves
• Application Number:
  US08/894,217
• Time in Patent Office: 1,611 Days
• Field of Search: 340/825.31, 340/825.34, 340/825.3, 340/825.56, 340/5.2, 340/5.8, 340/5.1, 703/36, 703/91, 703/93, 704/08, 704/13, 704/09, 702/63, 361/172, 361/139, 361/160, 361/170, 361/171, 1/1
• US Class Current: 340/5.2
• CPC Class Codes: G07C 2009/00761 with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors
• CPC Class Codes: G07C 2009/00841 by a portable device
• CPC Class Codes: G07C 9/00817 where the code of the lock can be programmed
• CPC Class Codes: G07C 9/00857 where the code of the data carrier can be programmed
• CPC Class Codes: Y10T 70/7441 Key
• CPC Class Codes: Y10T 70/7791 Keys

Abstract

A programmable electronic closure system has a lock for operation by a key when an identification code of the key and a corresponding code of the lock match. The closure system can be programmed to modify the code data in both the key and the lock using an input device.

Claims

1. A user programmable electronic closure system comprising:

a lock to be operated by a user with a key when an identification code of the lock and an identification code of the associated key are observed to match;

the lock including a cylinder provided with a portion in which at least one keyway is provided for receiving said key;

the cylinder including at least one electrical connection means, electronic control means including at least one reinscriptible memory means for storing at least one of a plurality of identification codes and connected to the at least one electrical connection means, and release means responsive to said electronic control means and designed to release the lock;

the key including first electrical connection means for cooperating with a second one of the at least one electrical connection means of the lock when the key is inserted in the corresponding keyway, first electronic control means including first reinscriptible memory means for storing at least one of a plurality of identification codes and connected to the first electrical connection means, and inputting means for a user to input a confidential code;

the electronic control means of the key and of the lock, and the cylinder release means being powdered by power supply means; and

the key including user programming means for the user to modify the data contained in each of the electronic control means of the key and of the lock under the control of the inputting means and without need of a manufacturer of the system and using the inputting means of the key.

2. A programmable electronic system according to claim 1, wherein said first and second electrical connection means comprise first and second cordless link means.

3. A programmable electronic system according to claim 1, wherein said power supply means comprises a rechargeable battery or a discardable battery disposed in the key.

4. A programmable electronic system according to claim 1, wherein said power supply means further comprises electricity generator means disposed in the cylinder of the lock and actuated by insertion or rotation of the key, serving to power at least the release means.

5. A programmable electronic system according to claim 1, wherein said key is formed of distinct first and second portions interconnected by an intermediate portion.

6. A programmable electronic system according to claim 1, wherein said intermediate portion is constituted by a flexible electrical link.

7. A programmable electronic system according to claim 5, wherein said intermediate portion is constituted by a cordless link.

8. A programmable electronic system according to claim 5, wherein said first portion is in the form of a rod provided with a handling head and including the first electrical connection means and in that said second portion is capable of acting as an electronic multifunction unit and further includes the electronic means and the power supply of the key and the programming means.

9. A programmable electronic system according to claim 1, wherein said key is constituted by a separable connection of a first portion in the form of a rod provided with a handling head and including the first electrical connection means and at least the power supply means and the first reinscriptible memory means, and a detachable section portion capable of acting as a multifunction electronic unit and including all of the means required for programming the data contained in the electronic means of the key and of the lock and connected with a third electrical connection means adapted for receiving the first electrical connection means when the key is not inserted in the lock.

10. A programmable electronic system according to claim 8, wherein said electronic multifunction unit comprises one of the following devices:

an electronic calculator, an electronic notebook, an electronic watch, a radio paging receiver, a telephone dialer, an alarm and a measurement sensor.

11. A programmable electronic system according to claim 1, wherein said key further includes additional connection means for remotely programming data contained in the electronic control means of said key and of the lock.

12. A programmable electronic system according to claim 11, wherein said additional connection means includes cordless connection means.

13. A programmable electronic system according to claim 11, wherein said first electrical connection means is also used as external connection means.

14. A programmable electronic system according to claim 1, wherein said key further includes mechanical coding means for cooperating with corresponding mechanical decoding means of the lock.

15. A programmable electronic system according to claim 1, wherein the electronic control means of the lock further includes comparator means for comparing the identification code of the lock and at least one corresponding code of the key received via the electrical connection means.

16. A programmable electronic system according to claim 1, wherein the electronic control means of the key further includes comparator means for comparing the identification code of the lock and at least one corresponding code of the key received via the electrical connection means.

17. A programmable electronic system according to claim 15, wherein the identification codes are transmitted between the lock and the key by means of encoding using a cipher key.

18. A programmable electronic system according to claim 1, wherein said reinscriptible memory means of the cylinder includes a memory space that is accessible to the key for reading only.

19. A programmable electronic system according to claim 1, wherein each identification code includes a first and second identification code, and in that, in a normal mode, only the respective first identification code of the lock and of the key are compared, whereas in a secure mode, comparison is performed on both the first and on the second identification codes.

20. A programmable electronic system according to claim 19, wherein each identification code is made up of two n-bit words.

21. A programmable electronic system according to claim 19, wherein the electronic control means of the cylinder of the lock initially operates via the comparator means disposed in the cylinder to compare the first n-bit word of the identification code of the lock with the first n-bit word of the identification code of the key as received form the key via the electrical connection means, and in that the first electronic control means of the key likewise includes comparator means for operating, in a second stage, and in the event of a match between said two first words, to compare the second n-bit word of the identification code of the key with the second n-bit word of the identification code of the lock as received from the lock via the electrical connection means, a new match relating to the two second words being required to authorize release of the lock.

22. A key for use by a user for cooperating with a cylinder of a lock including at least one electrical connection means, electronic control means including at least one memory means for storing at least one identification code and connected to the at least one electrical connection means, and release means responsive to said electronic control means and designed to release the lock, said key comprising a first electrical connection means for cooperating with the electrical connection means of the cylinder of the lock when the key is inserted in a keyway of the cylinder, and first electronic control means including at least first reinscriptible memory means for storing at least one of a plurality of identification codes and connected to the first electrical connection means, characterized in that said key further comprises programmable means for the user to modify the data contained in each of the electronic control means of the key and of the cylinder of the lock under the control of means for inputting a confidential code and without input from a manufacturer of the key, the inputting means being in the key.

24. A key according to claim 22, wherein the key further comprises power supply means for powering said electronic control means of the key and of the cylinder of the lock, said power supply means comprising advantageously rechargeable battery or a discardable battery.

25. A key according to claim 22, including audible or visible indicator means for informing the user whether the key is operating in normal mode or in secure mode.

26. A key according to claim 22, wherein said programming means includes a special secure function key making it possible only for the users of keys capable of operating in secure mode to change the identification codes of locks.

27. A key according to claim 22, wherein said programming means includes a special restriction function key enabling the holder of a key to validate access to one or more determined locks from a set of locks operable by the key.

28. A key according to claim 22, wherein said programming means includes a determined combination of specific function keys for enabling the holder of a key to prevent use thereof by activating its essential functions of reading and of comparison.

29. A key according to claim 28, wherein said prevention can be temporary or can be performed automatically after a determined operating time.

30. A cylinder of a lock for cooperating with a key according to claim 22, comprising one electrical connection means, electronic control means including at least one reinscriptible memory means for storing at least one of a plurality of identification codes and connected to the at least one electrical connection means, and release means responsive to said electronic control means and designed to release the lock, said cylinder being characterized in that the data contained in the electronic control means can be modified by the user only by programming means of the key and without input from a manufacturer of the cylinder.

23. A key for use by a user for cooperating with a cylinder of a lock including at least one cordless link means, electronic control means including at least one memory means for storing at least one identification code and connected to the at least one cordless link means, and release means responsive to said electronic control means and designed to release the lock, said key comprising a first cordless link means for cooperating with the cordless link means of the cylinder of the lock when the key is inserted in a keyway of the cylinder and first electronic control means including at least first reinscriptible memory means for storing at least one of a plurality of identification codes and connected to the first cordless link means, characterized in that said key further comprises programming means for the user to modify the data contained in each of the electronic control means of the key and of the cylinder of the lock under the control of means for inputting a confidential code without input from a manufacturer of the key, the inputting means being in the key.

31. A self-programmable electronic closure system, comprising:

a lock having a first memory for storing an identification code of the lock; and

a key having a second memory for storing an identification code of the key, said key being operable to unlock said lock when said identification code of said key matches said identification code of said lock, wherein said key includes a user input for allowing a user to modify said identification codes.

32. A self-programmable electronic closure system, comprising:

a lock having a first memory for storing an identification code of the lock; and

a key having a second memory for storing a plurality of identification codes of the key, each corresponding to a different lock, said key being operable to unlock said lock when one of said identification codes of the key matches said identification code of the lock, wherein said key includes a user input for allowing a user to modify said identification codes.