Method and apparatus for identifying waypoints and providing keyless remote entry in a handheld locator device
First Claim
Patent Images
1. A key faub, comprising:
- a locator circuit configured to receive a waypoint after a triggering event and configured to determine directional information from a current location to the identified waypoint, wherein the waypoint is calculated prior to the triggering event; and
a display for showing the directional information.
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Accused Products
Abstract
A locator device includes a pocket-sized casing that contains a keyless remote entry circuit for remotely operating a vehicle security system. A GPS receiver circuit is located in the casing and automatically identifies a vehicle waypoint whenever the vehicle is turned off. The locator device then determines from any current location and with a single button press the direction and/or distance back to the vehicle waypoint. Many other novel applications are also performed by the locator device.
77 Citations
29 Claims
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1. A key faub, comprising:
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a locator circuit configured to receive a waypoint after a triggering event and configured to determine directional information from a current location to the identified waypoint, wherein the waypoint is calculated prior to the triggering event; and
a display for showing the directional information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for finding a reference location, comprising:
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identifying when a triggering event occurs;
downloading GPS location data to be used as the reference location to a handheld locator device after the triggering event occurs, wherein the GPS vehicle location data is determined prior to the triggering event;
moving the locator device to a current location away from the reference location;
using a GPS circuit in the locator device to receive current GPS location data identifying the current location; and
identifying a target direction from the current location to the reference location using the GPS location data and the current GPS location data. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A locator device, comprising:
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a pocket-sized casing;
a keyless remote entry circuit located in the casing;
a GPS receiver circuit located in the casing configured to identify both a first location and a current location;
a wireless modem in the casing configured to automatically download a second location from a GPS system affixed to a vehicle whenever the vehicle is parked or shutoff; and
a processor configured to derive a direction and distance from the current location to a waypoint selected from the group consisting of the first location and the second location. - View Dependent Claims (26, 27, 28, 29)
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Specification