Apparatus and method for compensating position information in portable terminal
First Claim
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1. A method for estimating position information in a portable terminal, comprising:
- estimating position information of the portable terminal;
firstly compensating for an estimation error of the position information by considering motion information of the portable terminal;
secondarily compensating for the estimation error of the firstly compensated position information according to a map matching scheme; and
storing the position information of the compensated estimation error as the position information of the portable terminal.
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Abstract
An apparatus and a method for estimating position information in a portable terminal are provided. A position estimation method includes estimating position information of the portable terminal; firstly compensating for an estimation error of the position information of the portable terminal according to motion information of the portable terminal; secondarily compensating for the firstly compensated position information according to a map matching scheme; and storing the position information of the compensated estimation error as the position information of the portable terminal.
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Citations
20 Claims
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1. A method for estimating position information in a portable terminal, comprising:
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estimating position information of the portable terminal; firstly compensating for an estimation error of the position information by considering motion information of the portable terminal; secondarily compensating for the estimation error of the firstly compensated position information according to a map matching scheme; and storing the position information of the compensated estimation error as the position information of the portable terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus of a portable terminal, comprising:
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a position estimator for estimating position information of the portable terminal; a sensing module for detecting motion information of the portable terminal; a position compensator for firstly compensating for an estimation error of the position information estimated by the position estimator by considering the motion information of the portable terminal detected by the sensing module and, and secondarily compensating for the estimation error of the compensated position information according to a map matching scheme; and a storage unit for storing the position information compensated by the position compensator as the position information of the portable terminal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification