Method of confirming remote keyless entry lock button status

• US 6,703,919 B2
• Filed: 11/27/2001
• Issued: 03/09/2004
• Est. Priority Date: 11/27/2001
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Baset, Miah A
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): Dalencourt, Yves
• Application Number:
  US09/683,140
• Publication Number:
  US 20030098781A1
• Time in Patent Office: 833 Days
• Field of Search: 340/5.72, 340/5.3, 340/825.69, 340/825.72, 340/5.32, 340/5.33, 340/457, 340/438, 340/426.15, 340/426.36, 340/425.5, 307/10.1, 307/10.2
• US Class Current: 340/5.72
• CPC Class Codes: B60R 25/2009 Antitheft state indicator
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: G07C 2009/00222 by more than one push button
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2209/62 Comprising means for indicating the status of the lock
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks

Abstract

A method of confirming a lock button pressed condition for a remote device associated with a vehicle remote keyless entry system. The method includes setting a counter to zero then, continuously monitoring the remote device for a remote device button activation. If a lock button activation is detected, the counter is increment by one. Otherwise, if an unlock button activation is detected, the counter is reset to zero. An indicator on the remote device is activated, in response to detection of either a lock button or unlock button activation, when the counter is greater than one. In one embodiment, the indicator is an LED which is activated only when, upon detecting a lock button activation, a lock button activation was immediately previously detected. If at any time after initial lock button activation, the unlock button is activated, the LED indicator will not illuminate.

Claims

1. A method of confirming a lock button pressed condition for a remote device associated with a vehicle remote keyless entry system comprising:

setting a counter to zero, then;

continuously detecting a remote device button activation, and if a lock button activation is detected, incrementing said counter by one, otherwise if an unlock button activation is detected, resetting said counter to zero; and

activating an indicator on said remote device, in response to said remote device button activation, when said counter is greater than one.

2. A method according to claim 1 wherein setting occurs in response to an engine off signal from said vehicle.

3. A method according to claim 1 wherein setting occurs in response to an ignition off signal from said vehicle.

4. A method according to claim 1 wherein activating includes activating an LED on said remote device for a predetermined period of time.

5. A method according to claim 1 wherein activating includes blinking an LED on said remote device.

6. A method of confirming a lock button pressed condition for a remote device associated with a vehicle remote keyless entry system comprising:

setting a counter to zero, then;

in response to detecting a lock button first activation, setting said counter equal to one, then;

continuously detecting a remote device button activation, and if a lock button second activation is detected, setting said counter equal to a stored counter value plus said stored counter value, otherwise if an unlock button activation is detected, storing said counter value as zero; and

activating an indicator on said remote device, in response to said remote device button activation, when said counter is greater than one.

7. A method according to claim 6 wherein setting occurs in response to an engine off signal from said vehicle.

8. A method according to claim 6 wherein setting occurs in response to an ignition off signal from said vehicle.

9. A method according to claim 6 wherein activating includes activating an LED on said remote device for a predetermined period of time.

10. A method according to claim 6 wherein activating includes blinking an LED on said remote device.

11. A remote device for a vehicle remote keyless entry system comprising:

an indicator element;

a lock button;

an unlock button; and

logic control circuitry including a counter, said circuitry programmed to set said counter to zero then, continuously detect a lock or unlock button activation and, if a lock button activation is detected, increment said counter by one, otherwise if an unlock button activation is detected, reset said counter to zero, said logic control circuitry further programmed to activate said indicator element, in response to said remote device button activation, when said counter is greater than one.