METHOD AND APPARATUS FOR MEASURING ALTITUDE IN PORTABLE TERMINAL
First Claim
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1. A method of measuring an altitude in a portable terminal, the method comprising:
- receiving a reference altitude from an information providing device fixed and installed at a certain point;
measuring a current atmospheric pressure of the certain point;
calculating an altitude of the certain position using the measured current atmospheric pressure and a reference atmospheric pressure; and
storing a difference between the reference altitude and the calculated altitude of the certain point as an altitude error.
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Abstract
A method of measuring an altitude in a portable terminal is provided. The method includes receiving a reference altitude from an information providing device fixed and installed at a certain point, measuring a current atmospheric pressure of the certain point, calculating an altitude of the certain position using the measured current atmospheric pressure and a reference atmospheric pressure, and storing a difference between the reference altitude and the calculated altitude of the certain point as an altitude error.
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20 Claims
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1. A method of measuring an altitude in a portable terminal, the method comprising:
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receiving a reference altitude from an information providing device fixed and installed at a certain point; measuring a current atmospheric pressure of the certain point; calculating an altitude of the certain position using the measured current atmospheric pressure and a reference atmospheric pressure; and storing a difference between the reference altitude and the calculated altitude of the certain point as an altitude error. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for measuring an altitude of a portable terminal, the apparatus comprising:
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a local wireless communication unit configured to receive a reference altitude from an information providing device fixed and installed at a certain point; an atmospheric pressure measurement unit configured to measure an atmospheric pressure; and a controller configured to calculate an altitude of the certain position using a current atmospheric pressure measured through the atmospheric pressure measurement unit and a reference atmospheric pressure, and to set a difference between the reference altitude and the calculated altitude of the certain point as an altitude error. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification