System and method for providing location information on mobile devices
First Claim
1. A method, by a first mobile device, for controlling use of a location measurement system on the first mobile device, the method comprising:
- obtaining a region of uncertainty of the first mobile device using an other location measurement system or manually inputted data;
receiving data for a region of uncertainty of a second mobile device;
displaying a map of both regions of uncertainty of the first mobile device and the second mobile device;
computing at least one line that bisects at least one of a horizontal distance and a vertical distance between the region of uncertainty of the first mobile device and the region of uncertainty of the second mobile device;
obtaining a current region of uncertainty of the first mobile device and obtaining a current region of uncertainty of the second mobile device;
upon detecting the current region of uncertainty of the first mobile device coincides with or has crossed over the at least one line, determining if the current region of uncertainty of the first mobile device is within a predetermined distance from the current region of uncertainty of the second mobile device;
in response to detecting that the current region of uncertainty of the first mobile device is within the predetermined distance from the current region of uncertainty of the second mobile device, initiating use of the location measurement system to obtain a secondary location measurement pertaining to the first mobile device;
sending the secondary location measurement to the second mobile device;
receiving a secondary location measurement pertaining to the second mobile device; and
updating resolution of the map to display both of the secondary location measurements of the first mobile device and the second mobile device.
4 Assignments
0 Petitions
Accused Products
Abstract
A system and method for activating a GPS receiver or a WiFi receiver on a mobile device may be provided, which comprises determining an approximate location of the mobile device. The approximate location of the mobile device may be determined using cell tower location information. If the approximate location of the mobile device is within a predetermined distance from a desired location, or is “close enough”, then the GPS receiver or the WiFi receiver is activated. The GPS receiver or the WiFi receiver is activated to determine a more accurate location of the mobile device. The approximate and the more accurate location information may be exchanged with another mobile device to allow the user to find one another.
16 Citations
23 Claims
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1. A method, by a first mobile device, for controlling use of a location measurement system on the first mobile device, the method comprising:
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obtaining a region of uncertainty of the first mobile device using an other location measurement system or manually inputted data; receiving data for a region of uncertainty of a second mobile device; displaying a map of both regions of uncertainty of the first mobile device and the second mobile device; computing at least one line that bisects at least one of a horizontal distance and a vertical distance between the region of uncertainty of the first mobile device and the region of uncertainty of the second mobile device; obtaining a current region of uncertainty of the first mobile device and obtaining a current region of uncertainty of the second mobile device; upon detecting the current region of uncertainty of the first mobile device coincides with or has crossed over the at least one line, determining if the current region of uncertainty of the first mobile device is within a predetermined distance from the current region of uncertainty of the second mobile device; in response to detecting that the current region of uncertainty of the first mobile device is within the predetermined distance from the current region of uncertainty of the second mobile device, initiating use of the location measurement system to obtain a secondary location measurement pertaining to the first mobile device; sending the secondary location measurement to the second mobile device; receiving a secondary location measurement pertaining to the second mobile device; and updating resolution of the map to display both of the secondary location measurements of the first mobile device and the second mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A non-transitory computer readable medium comprising instructions for controlling use of a location measurement system on a first mobile device, the instructions comprising:
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the first mobile device obtaining a region of uncertainty of the first mobile device using an other location measurement system or manually inputted data; the first mobile device receiving data for a region of uncertainty of a second mobile device; the first mobile device displaying a map of both regions of uncertainty of the first mobile device and the second mobile device; the first mobile device computing at least one line that bisects at least one of a horizontal distance and a vertical distance between the region of uncertainty of the first mobile device and the region of uncertainty of the second mobile device; the first mobile device obtaining a current region of uncertainty of the first mobile device and obtaining a current region of uncertainty of the second mobile device; upon the first mobile device detecting the current region of uncertainty of the first mobile device coincides with or has crossed over the at least one line, the first mobile device determining if the current region of uncertainty of the first mobile device is within a predetermined distance from the current region of uncertainty of the second mobile device; in response to detecting that the current region of uncertainty of the first mobile device is within the predetermined distance from the current region of uncertainty of the second mobile device, the first mobile device initiating use of the location measurement system to obtain a secondary location measurement pertaining to the first mobile device; the first mobile device sending the secondary location measurement to the second mobile device the first mobile device receiving a secondary location measurement pertaining to the second mobile device; and the first mobile device updating resolution of the map to display both of the secondary location measurements of the first mobile device and the second mobile device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A first mobile device comprising:
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a location measurement system; an other location measurement system; a display; a communication system; and a processor configured to at least; obtain a region of uncertainty of the first mobile device using the other location measurement system or manually inputted data; receive data for a region of uncertainty of a second mobile device using the communication system; display a map of both regions of uncertainty of the first mobile device and the second mobile device; compute at least one line that bisects at least one of a horizontal distance and a vertical distance between the region of uncertainty of the first mobile device and the region of uncertainty of the second mobile device; obtain a current region of uncertainty of the first mobile device and obtaining a current region of uncertainty of the second mobile device; upon detecting the current region of uncertainty of the first mobile device coincides with or has crossed over the at least one line, determine if the current region of uncertainty of the first mobile device is within a predetermined distance from the current region of uncertainty of the second mobile device; in response to detecting that the current region of uncertainty of the first mobile device is within the predetermined distance from the current region of uncertainty of the second mobile device, initiate use of the location measurement system to obtain a secondary location measurement pertaining to the first mobile device; send the secondary location measurement to the second mobile device; receive a secondary location measurement pertaining to the second mobile device; and update resolution of the map to display both of the secondary location measurements of the first mobile device and the second mobile device.
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Specification