AUTOMATICALLY IDENTIFYING GEOGRAPHIC DIRECTION
First Claim
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1. A device comprising:
- one or more processors;
memory coupled to the one or more processors and storing instructions which, when executed by the one or more processors, cause the one or more processors to perform operations comprising;
obtaining geographic position data that identifies a geographic position of the device;
identifying a magnetic declination based on the geographic position data;
obtaining a magnetic heading of the device; and
identifying, without user intervention, a geographic direction based on the magnetic heading and the magnetic declination.
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Abstract
Automatically identifying a geographic direction (e.g., a heading relative to true north) is disclosed. Responsive to a correction trigger event, geographic position data that identifies a geographic position of the device can be obtained. A magnetic declination based on the geographic position data can be obtained. A magnetic heading of the device can be obtained. A geographic direction based on the magnetic heading and the magnetic declination can be identified without user intervention.
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Citations
21 Claims
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1. A device comprising:
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one or more processors; memory coupled to the one or more processors and storing instructions which, when executed by the one or more processors, cause the one or more processors to perform operations comprising; obtaining geographic position data that identifies a geographic position of the device; identifying a magnetic declination based on the geographic position data; obtaining a magnetic heading of the device; and identifying, without user intervention, a geographic direction based on the magnetic heading and the magnetic declination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer-implemented method, comprising:
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obtaining geographic position data that identifies a geographic position of the device; identifying a magnetic declination based on the geographic position data; obtaining a magnetic heading of the device; and identifying, without user intervention, a geographic direction based on the magnetic heading and the magnetic declination. - View Dependent Claims (10, 11)
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12. A computer-implemented method, comprising:
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obtaining a geographic position of a device; identifying magnetic north at the geographic position of the device; identifying a magnetic declination based on the geographic position; and identifying, without user intervention, true north based on a combination of magnetic north and the magnetic declination.
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13. A computer-implemented method, comprising:
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obtaining geographic position data that identifies a geographic position of a device; identifying a magnetic declination based on the geographic position data; and without user intervention; obtaining a magnetic heading of the device, and identifying a geographic direction based on the magnetic heading and the magnetic declination. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification