USRE36505E - Method and apparatus for programming a spare key into a security system - Google Patents

Method and apparatus for programming a spare key into a security system Download PDF

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Publication number
USRE36505E
USRE36505E US08/907,035 US90703597A USRE36505E US RE36505 E USRE36505 E US RE36505E US 90703597 A US90703597 A US 90703597A US RE36505 E USRE36505 E US RE36505E
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Prior art keywords
key
memory
iaddend
iadd
security code
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US08/907,035
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William David Treharne
Ronald Gerard Moore
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Visteon Global Technologies Inc
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Ford Global Technologies LLC
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Priority to US08/907,035 priority Critical patent/USRE36505E/en
Assigned to FORD GLOBAL TECHNOLOGIES, INC. reassignment FORD GLOBAL TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FORD MOTOR COMPANY
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Publication of USRE36505E publication Critical patent/USRE36505E/en
Assigned to VISTEON GLOBAL TECHNOLOGIES, INC. reassignment VISTEON GLOBAL TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FORD MOTOR COMPANY
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20Means to switch the anti-theft system on or off
    • B60R25/24Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20Means to switch the anti-theft system on or off
    • B60R25/2009Antitheft state indicator
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00817Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00761Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00817Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
    • G07C2009/00841Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed by a portable device
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C2209/00Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/08With time considerations, e.g. temporary activation, valid time window or time limitations

Definitions

  • the present invention relates generally to a key-activated security device and more specifically, to a method and apparatus to program the security device to recognize a spare key for an automotive vehicle.
  • U.S. Pat. No. 4,990,906 describes a microprocessor controlled programmable vehicle anti-theft device, where the system memory is cleared during a new key programming sequence. The security code of the new key is then placed into the memory. The new key security code is the only security code retained, thus any previously programmed keys become invalid. Also in order to program the new key into the system, the inputs of the microprocessor must be varied in a fixed sequence which requires trained service personnel.
  • the present invention is a method and apparatus wherein an end user programs a spare key into an automotive security system without using special equipment or trained personnel.
  • a spare key is cut to match an existing key which fits into a lock cylinder of the security system.
  • the key also has electronic circuitry containing a code selected at random.
  • the random code on the spare key is programmed into the memory of the security system by inserting a key having a security code which has been previously stored in the memory in the lock to initiate a timer.
  • a spare key having the random code is inserted into the lock before the timer counts a predetermined time period. The respective electronic security code is then stored in the memory.
  • the device can also have a feature which will erase all the codes currently stored in the memory and program a new key value.
  • the process requires several steps and takes over 45 minutes to help insure that an unauthorized key cannot be easily used to reprogram the memory.
  • the process useful to clear the memory should a key become lost or to clear the memory when it has become full.
  • FIG. 1 is a block diagram of preferred hardware according to the invention.
  • FIG. 2 is a flow chart showing of the method to program a spare key.
  • FIG. 3 is a flowchart showing the operation of the microprocessor of FIG. 1.
  • a microprocessor 10 which controls the operation of the system has a timer 14, a CPU 20, and a memory 18. Although they are all shown as an integral part of the microprocessor 10 they could also be separate components.
  • the memory 18 is a keep-alive memory which will not be cleared when power is removed.
  • the security code from the key can be read by direct contact although the preferable way is to have the microprocessor 10 send an RF signal via a transmitter/receiver located in the steering column to a transponder located on the key.
  • the transponder sends its encoded security code to the microprocessor of the security system via another RF signal.
  • the CPU 20 receives the security code, it is compared with the security codes stored in the memory 18. A valid security code will satisfy the security system, which then will enable vehicle operation.
  • LED 16 is used to provide feedback to the system user. For example, LED 16 will flash in a predetermined pattern if the code contained on the key matches a security code stored in memory.
  • Timer 14 is used in a program mode. When the program mode is entered, the user will have a finite amount of time to insert a new key to be programmed. Timer 14 may comprise an oscillator to provide pulses to be counted by CPU 20 establish a predetermined time.
  • FIG. 2 shows the procedural steps used to program the security code of a previously cut key into the memory of the security device.
  • the key must be a previously cut key in order to turn the lock cylinder.
  • a valid key must be inserted into the lock cylinder 12.
  • the key must be rotated to a predetermined position, for example the accessory position or ignition-on position of an automobile ignition switch, in order to trigger the CPU 20 to read the code from the key.
  • the CPU 20 Upon removal of the key in step 36, the CPU 20 enters program mode for a predetermined period of time. The period of time is less than the time it would take the authorized user of the vehicle to leave the area of the vehicle, such as about 10 seconds.
  • the programmed key is inserted in the lock cylinder 12 and rotated in step 38 to the predetermined position before the expiration of the predetermined time period.
  • step 40 the newly read security code is added to the memory.
  • an additional step 42 is performed between steps 38 and 40 wherein the initial security code must again be read prior to storing the newly read value.
  • security is increased by waiting for a valid key to be inserted into the lock cylinder within a short period of time after the removal of the unprogrammed key from the lock cylinder. The period of time is preferably the same as in step 38.
  • FIG. 3 shows a flow chart of the steps executed by the microprocessor to program a spare key.
  • step 50 a valid key is inserted into the lock cylinder and rotated causing the microprocessor to read the security code from the key.
  • step 52 the microprocessor receives the security code.
  • the microprocessor in step 54 checks the security code received for validity by comparing it with those stored in memory. If the security code in the system is a valid code, step 56 is executed wherein the key is removed, thereby initiating program mode.
  • Program mode is comprised of a short period of time (e.g., 10 seconds) established by starting a timer in step 56. If the time period has expired in step 58, the program reverts to the end of the program at step 68.
  • step 60 If a key with a previously unprogrammed security value is placed into the lock cylinder of the system in step 60 and rotated before the time period has not expired then the microprocessor reads the unprogrammed security code from the key in step 62. If the security code contained on the key is already a programmed code, step 64 will prevent the system from storing the code twice by going to the end of the program in step 68. If the security code is not a previously stored security code, the unprogrammed security code is stored in the memory in step 66. The newly programmed security code value, once stored in the memory becomes a valid security code. The program sequence is ended at step 68.
  • Step 70 requires a key with a previously programmed security code to be placed back into the lock cylinder to be read by the microprocessor.
  • the key is checked in step 72 to verify that the security code is valid. If the key is not valid, the system will end at step 68. If the code is valid, the new key security code will be entered into the memory in step 66.
  • the microprocessor will end program mode at step 68 upon the entry of the security code to memory.
  • the memory is capable of storing about which exceeds the requirements of an average consumer.
  • the memory might eventually contain both active and inactive codes, and since it may be desirable to remove a code if a key is misplaced or stolen.
  • the present invention provides a sequence for clearing the memory.
  • the microprocessor enters a reprogram mode in which the system memory can be cleared and in which the key used to clear the system memory becomes the first valid security code to be stored. If any of the steps in reprogram mode are not precisely followed, the microprocessor will jump to step 68 without clearing or reprogramming the memory.
  • the reprogram sequence takes over 45 minutes in total to discourage a thief from breaching the security of the system while still allowing a stranded person without access to a valid key to reprogram a new key.
  • the key In step 80, the key must be left inactive in the lock cylinder for a randomly selected period of time, the length of which is controlled by the CPU.
  • step 86 determines whether the user has properly responded to the LED signal a predetermined number of times.
  • the present system needs three times through the system in order to perform the reprogramming. If the system is not in its third time through in step 86 the system will repeat step 80 where the CPU waits again for a randomly generated time period.
  • the total time period for three times through the loop of steps 80 through 86 is preferably over 45 minutes. Each individual key-on time is randomly selected so it would be difficult or impossible to use automatic equipment to clear the memory. This will help to discourage unauthorized reprogramming of the system.
  • step 88 the security system now recognizes the new key as a valid key and the programming sequence ends in step 68.
  • time periods used in the specification are preferred times, however the times can be varied without deviating from the scope of the invention.

Abstract

A method for programming a lock to accept a key. The device will erase all the codes currently stored in the memory and program a new key value. The process requires several steps of turning the key to one of two positions when an LED is illuminated to indicate that the key must be rotated. After successful responses, all the codes currently stored are cleared and the security code of the new key is stored.

Description

This .Iadd.is a continuation of application Ser. No. 08/669,201 filed Sep. 23, 1996 now abandoned which .Iaddend.is a divisional of application Ser. No. 07/993,759 filed Dec. 21, 1992 now U.S. Pat. No. 5,416,471.
BACKGROUND OF THE INVENTION
The present invention relates generally to a key-activated security device and more specifically, to a method and apparatus to program the security device to recognize a spare key for an automotive vehicle.
Several security systems are available where a conventional key is combined with coded electronic circuitry to provide added security by increasing the total number possibilities able to satisfy the security device. However, the systems fail to disclose a convenient method for an end user to program a spare key into such a system.
For instance, U.S. Pat. No. 4,990,906 describes a microprocessor controlled programmable vehicle anti-theft device, where the system memory is cleared during a new key programming sequence. The security code of the new key is then placed into the memory. The new key security code is the only security code retained, thus any previously programmed keys become invalid. Also in order to program the new key into the system, the inputs of the microprocessor must be varied in a fixed sequence which requires trained service personnel.
It would be desirable to have a security system which could easily be programmed by an end user and which could store several key code values rather than one key code value in memory.
SUMMARY OF THE INVENTION
The present invention is a method and apparatus wherein an end user programs a spare key into an automotive security system without using special equipment or trained personnel.
A spare key is cut to match an existing key which fits into a lock cylinder of the security system. The key also has electronic circuitry containing a code selected at random. The random code on the spare key is programmed into the memory of the security system by inserting a key having a security code which has been previously stored in the memory in the lock to initiate a timer. A spare key having the random code is inserted into the lock before the timer counts a predetermined time period. The respective electronic security code is then stored in the memory.
The device can also have a feature which will erase all the codes currently stored in the memory and program a new key value. The process requires several steps and takes over 45 minutes to help insure that an unauthorized key cannot be easily used to reprogram the memory. The process useful to clear the memory should a key become lost or to clear the memory when it has become full.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of preferred hardware according to the invention.
FIG. 2 is a flow chart showing of the method to program a spare key.
FIG. 3 is a flowchart showing the operation of the microprocessor of FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
Referring now to FIG. 1, a microprocessor 10 which controls the operation of the system has a timer 14, a CPU 20, and a memory 18. Although they are all shown as an integral part of the microprocessor 10 they could also be separate components. The memory 18 is a keep-alive memory which will not be cleared when power is removed. When a properly cut key is placed into the lock cylinder 12 and rotated to a predetermined position, such as the accessory position on the ignition switch of an automobile, the CPU 20 will be triggered to read the security code from the circuitry embedded in the head of the key. The security code from the key can be read by direct contact although the preferable way is to have the microprocessor 10 send an RF signal via a transmitter/receiver located in the steering column to a transponder located on the key. The transponder sends its encoded security code to the microprocessor of the security system via another RF signal. Once the CPU 20 receives the security code, it is compared with the security codes stored in the memory 18. A valid security code will satisfy the security system, which then will enable vehicle operation.
An LED 16 is used to provide feedback to the system user. For example, LED 16 will flash in a predetermined pattern if the code contained on the key matches a security code stored in memory.
Timer 14 is used in a program mode. When the program mode is entered, the user will have a finite amount of time to insert a new key to be programmed. Timer 14 may comprise an oscillator to provide pulses to be counted by CPU 20 establish a predetermined time.
FIG. 2 shows the procedural steps used to program the security code of a previously cut key into the memory of the security device. The key must be a previously cut key in order to turn the lock cylinder.
In step 32, a valid key must be inserted into the lock cylinder 12. Preferably, one lock cylinder is used, but two or more lock cylinders may be used. In step 34, the key must be rotated to a predetermined position, for example the accessory position or ignition-on position of an automobile ignition switch, in order to trigger the CPU 20 to read the code from the key. Upon removal of the key in step 36, the CPU 20 enters program mode for a predetermined period of time. The period of time is less than the time it would take the authorized user of the vehicle to leave the area of the vehicle, such as about 10 seconds.
The programmed key is inserted in the lock cylinder 12 and rotated in step 38 to the predetermined position before the expiration of the predetermined time period. In step 40 the newly read security code is added to the memory.
In an alternative embodiment, an additional step 42 is performed between steps 38 and 40 wherein the initial security code must again be read prior to storing the newly read value. Thus, security is increased by waiting for a valid key to be inserted into the lock cylinder within a short period of time after the removal of the unprogrammed key from the lock cylinder. The period of time is preferably the same as in step 38. Once the valid key is reinserted into the lock cylinder in step 42, the new key security code is stored and accepted by the system in step 40.
FIG. 3 shows a flow chart of the steps executed by the microprocessor to program a spare key. In step 50, a valid key is inserted into the lock cylinder and rotated causing the microprocessor to read the security code from the key. In step 52, the microprocessor receives the security code. The microprocessor in step 54 checks the security code received for validity by comparing it with those stored in memory. If the security code in the system is a valid code, step 56 is executed wherein the key is removed, thereby initiating program mode. Program mode is comprised of a short period of time (e.g., 10 seconds) established by starting a timer in step 56. If the time period has expired in step 58, the program reverts to the end of the program at step 68. If a key with a previously unprogrammed security value is placed into the lock cylinder of the system in step 60 and rotated before the time period has not expired then the microprocessor reads the unprogrammed security code from the key in step 62. If the security code contained on the key is already a programmed code, step 64 will prevent the system from storing the code twice by going to the end of the program in step 68. If the security code is not a previously stored security code, the unprogrammed security code is stored in the memory in step 66. The newly programmed security code value, once stored in the memory becomes a valid security code. The program sequence is ended at step 68.
In an alternative embodiment, additional steps 70 and step 72 are executed before the security code is added to the memory in step 66. Step 70 requires a key with a previously programmed security code to be placed back into the lock cylinder to be read by the microprocessor. The key is checked in step 72 to verify that the security code is valid. If the key is not valid, the system will end at step 68. If the code is valid, the new key security code will be entered into the memory in step 66. The microprocessor will end program mode at step 68 upon the entry of the security code to memory.
In a preferred embodiment, the memory is capable of storing about which exceeds the requirements of an average consumer. However, since the memory might eventually contain both active and inactive codes, and since it may be desirable to remove a code if a key is misplaced or stolen. The present invention provides a sequence for clearing the memory.
Referring back to step 54, if the code was not one previously stored in the memory, the microprocessor enters a reprogram mode in which the system memory can be cleared and in which the key used to clear the system memory becomes the first valid security code to be stored. If any of the steps in reprogram mode are not precisely followed, the microprocessor will jump to step 68 without clearing or reprogramming the memory. The reprogram sequence takes over 45 minutes in total to discourage a thief from breaching the security of the system while still allowing a stranded person without access to a valid key to reprogram a new key. In step 80, the key must be left inactive in the lock cylinder for a randomly selected period of time, the length of which is controlled by the CPU. Once the time has expired, the LED is illuminated to indicate that the key must be rotated to the off position within a short period of time in step 82. The key must then be rotated to the on position within a short period of time when signalled again by the LED in step 84. A check is made in step 86 to determine whether the user has properly responded to the LED signal a predetermined number of times. The present system needs three times through the system in order to perform the reprogramming. If the system is not in its third time through in step 86 the system will repeat step 80 where the CPU waits again for a randomly generated time period. The total time period for three times through the loop of steps 80 through 86 is preferably over 45 minutes. Each individual key-on time is randomly selected so it would be difficult or impossible to use automatic equipment to clear the memory. This will help to discourage unauthorized reprogramming of the system.
After the third successful response, all the codes stored in the system are cleared and the security code of the new key is stored in step 88. The security system now recognizes the new key as a valid key and the programming sequence ends in step 68.
The time periods used in the specification are preferred times, however the times can be varied without deviating from the scope of the invention.

Claims (4)

What is claimed is:
1. A method for reprogramming a security system having light means for providing feedback to a system operator, a lock having at least a first position and a second position, a timer and a memory at accept a key having an electronic security code, comprising the steps of:
inserting a key in said lock in a first position whose electronic security code has not been previously stored in said memory;
moving said key in said lock to a second position for a first time period;
.[.illuminating.]. .Iadd.changing an illumination from .Iaddend.said light means .[.after.]. .Iadd.to signal the end of .Iaddend.said first time period;
moving said key in said lock back to said first position within a second time period from .[.illumination of.]. .Iadd.said changing of said illumination from .Iaddend.said light means; .Iadd.and .Iaddend.
.[.clearing said memory of all previously stored security codes;.].
storing the electronic security code of said inserted key in said memory.[.; and
storing a second electronic security code in said memory in response to receiving said first electronic security code.]..
2. The method as recited in claim 1 wherein said first and second time periods are random.
3. The method as recited in claim 1 further comprising the steps before the step of clearing said memory, of:
.[.illuminating.]. .Iadd.changing an illumination from .Iaddend.said light means after a third time period beginning when said key is moved back to said first position;
moving said key .[.to.]. .Iadd.in .Iaddend.said lock to said second position within a fourth time period from .Iadd.said changing .Iaddend.illumination of said light means;
.[.illuminating.]. .Iadd.changing an illumination from .Iaddend.said light means after said key is in said second position for a fifth time period; and
moving said key .[.to.]. .Iadd.in .Iaddend.said lock back to said first position within a sixth time period from .Iadd.said changing .Iaddend.illumination of said light means.
4. The method of claim 3 wherein each of said time periods is randomly determined and wherein the sum of said time period is equal to at least about 45 minutes.
US08/907,035 1992-12-21 1997-08-06 Method and apparatus for programming a spare key into a security system Expired - Lifetime USRE36505E (en)

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US08/907,035 USRE36505E (en) 1992-12-21 1997-08-06 Method and apparatus for programming a spare key into a security system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US07/993,759 US5416471A (en) 1992-12-21 1992-12-21 Method and apparatus for programming a spare key into a security system
US08/357,960 US5508694A (en) 1992-12-21 1994-12-16 Method and apparatus for programming a spare key into a security system
US66920196A 1996-09-23 1996-09-23
US08/907,035 USRE36505E (en) 1992-12-21 1997-08-06 Method and apparatus for programming a spare key into a security system

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US08/357,960 Reissue US5508694A (en) 1992-12-21 1994-12-16 Method and apparatus for programming a spare key into a security system
US66920196A Continuation 1992-12-21 1996-09-23

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US08/357,960 Expired - Fee Related US5508694A (en) 1992-12-21 1994-12-16 Method and apparatus for programming a spare key into a security system
US08/907,035 Expired - Lifetime USRE36505E (en) 1992-12-21 1997-08-06 Method and apparatus for programming a spare key into a security system

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US08/357,960 Expired - Fee Related US5508694A (en) 1992-12-21 1994-12-16 Method and apparatus for programming a spare key into a security system

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US (3) US5416471A (en)
EP (1) EP0673463B1 (en)
JP (1) JPH08507341A (en)
CA (1) CA2152268A1 (en)
DE (1) DE69322790T2 (en)
WO (1) WO1994015048A1 (en)

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US20110121941A1 (en) * 2009-11-24 2011-05-26 Ford Global Technologies, Llc System and method for changing key status in a vehicle based on driver status
US10308066B2 (en) 2016-09-27 2019-06-04 Ford Global Technologies, Llc Space-saving spare wheel assembly having ergonomic handles for use with a vehicle
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EP0673463A1 (en) 1995-09-27
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CA2152268A1 (en) 1994-07-07
DE69322790T2 (en) 1999-05-06
US5508694A (en) 1996-04-16
EP0673463B1 (en) 1998-12-23
US5416471A (en) 1995-05-16

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