Vehicle locating using GPS
First Claim
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1. A vehicle locating system for utilizing a fob to direct a user to a vehicle, the system comprising:
- GPS units included on the vehicle and the fob that are respectively configured to determine GPS coordinates for the vehicle and fob, the GPS units being configured to activate at approximately the same time so as to facilitate determining a direction to the vehicle as a function of commonly inaccurate GPS coordinates; and
transmitting a wake up signal to the vehicle GPS unit in response to actuation of a locating button on the fob, the wake up signal used to facilitate activating the vehicle GPS unit, wherein the activating of the vehicle GPS unit and the fob GPS is defined to be at approximately the same time if both of the vehicle and fob GPS transmit requests for GPS coordinates to a GPS satellite at approximately the same time.
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Abstract
Method, fob, and system suitable for use in directing a user to the vehicle. The direction being determined as a function of GPS coordinates determined with GPS units on a fob and vehicle. The GPS unit being activated in coordination with each other such that the GPS coordinates associated with the same are commonly inaccurate.
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Citations
19 Claims
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1. A vehicle locating system for utilizing a fob to direct a user to a vehicle, the system comprising:
- GPS units included on the vehicle and the fob that are respectively configured to determine GPS coordinates for the vehicle and fob, the GPS units being configured to activate at approximately the same time so as to facilitate determining a direction to the vehicle as a function of commonly inaccurate GPS coordinates; and
transmitting a wake up signal to the vehicle GPS unit in response to actuation of a locating button on the fob, the wake up signal used to facilitate activating the vehicle GPS unit, wherein the activating of the vehicle GPS unit and the fob GPS is defined to be at approximately the same time if both of the vehicle and fob GPS transmit requests for GPS coordinates to a GPS satellite at approximately the same time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- GPS units included on the vehicle and the fob that are respectively configured to determine GPS coordinates for the vehicle and fob, the GPS units being configured to activate at approximately the same time so as to facilitate determining a direction to the vehicle as a function of commonly inaccurate GPS coordinates; and
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9. A fob for use in directing a user to a vehicle having a vehicle GPS unit, the fob configured for:
- after the vehicle GPS unit and a fob GPS are deactivated, activating the vehicle GPS unit in coordination with the fob GPS unit so that GPS coordinates determined by the same are commonly inaccurate;
determining a direction to the vehicle as a function of the commonly inaccurate GPS coordinates; and
delaying transmission of a coordinate request from the fob GPS unit to a GPS satellite for an amount of time sufficient to allow the vehicle GPS unit to issue a similar coordinate request at the same time; and
transmitting a wake up signal to the vehicle GPS unit in response to actuation of a locating button on the fob, the wake up signal used to facilitate activating the vehicle GPS unit, wherein the activating of the vehicle GPS unit and the fob GPS is defined to be at approximately the same time if both of the vehicle and fob GPS transmit requests for GPS coordinates to a GPS satellite at approximately the same time. - View Dependent Claims (10, 11, 12, 13, 14)
- after the vehicle GPS unit and a fob GPS are deactivated, activating the vehicle GPS unit in coordination with the fob GPS unit so that GPS coordinates determined by the same are commonly inaccurate;
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15. A method of locating a vehicle comprising:
- determining vehicle GPS coordinates with a vehicle GPS unit included on the vehicle;
determining fob GPS coordinates with a fob GPS unit included on the fob; and
deactivating both of the vehicle and fob GPS units upon occurrence of a deactivating event and subsequently activating the vehicle and fob GPS units at approximately the same time in order to determine a direction to the vehicle as a function of the vehicle and fob GPS coordinates; and
transmitting a wake up signal to the vehicle GPS unit in response to actuation of a locating button on the fob, the wake up signal used to facilitate activating the vehicle GPS unit, wherein the activating of the vehicle GPS unit and the fob GPS is defined to be at approximately the same time if both of the vehicle and fob GPS transmit requests for GPS coordinates to a GPS satellite at approximately the same time. - View Dependent Claims (16, 17, 18, 19)
- determining vehicle GPS coordinates with a vehicle GPS unit included on the vehicle;
Specification