System and Method of Providing Directions to a User of a Wireless Communication Device
First Claim
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1. A wireless communication device comprising:
- a transceiver configured to communicate Radio Frequency (RF) signals with a wireless communication network;
a navigation receiver configured to receive navigation signals from a navigation system; and
a controller configured to;
periodically store a current geographical location of the wireless communication device responsive to detecting that the device is not within a coverage area of the network;
generate navigation directions based on one or more of the stored locations to return the user to the coverage area of the network.
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Abstract
A wireless communication device communicates Radio Frequency (RF) signals with a wireless communication network, and receives navigation signals from a constellation of satellites orbiting the Earth. When the device travels to an area where the RF signals from the network are weak or non-existent, the device automatically activates its Global Positioning Satellite (GPS) receiver, and periodically saves its location to memory. If a user of the device becomes lost, the device can use the saved locations to generate directions to return the user to, or near, the network coverage area.
24 Citations
16 Claims
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1. A wireless communication device comprising:
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a transceiver configured to communicate Radio Frequency (RF) signals with a wireless communication network; a navigation receiver configured to receive navigation signals from a navigation system; and a controller configured to; periodically store a current geographical location of the wireless communication device responsive to detecting that the device is not within a coverage area of the network; generate navigation directions based on one or more of the stored locations to return the user to the coverage area of the network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of navigating to a predetermined area using a wireless communication device, the method comprising:
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determining that the wireless communication device is not within a coverage area of a wireless communication network; periodically storing a current geographical location of the device responsive to detecting that the device is not within the coverage area of the wireless communication network; and generating navigation directions based on the stored geographical locations to return the user to the coverage area of the wireless communication network. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification