Apparatus and method for detecting location information using navigation algorithm
First Claim
1. A method for measuring a location of a pedestrian terminal, the method comprising:
- receiving pseudo-range information from at least one of Global Positioning System (GPS) satellite and storing the received pseudo-range information;
calculating a displacement of a pedestrian terminal based on a detected number of steps taken by a pedestrian;
calculating a distance between the pedestrian terminal and the at least one GPS satellite using the calculated displacement of the pedestrian terminal and orbit information about the at least one GPS satellite;
correcting the calculated displacement of the pedestrian terminal using a difference between the received pseudo-range information and the calculated distance; and
measuring the location of the pedestrian terminal using the corrected displacement.
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Accused Products
Abstract
A method and apparatus for detecting location information using a navigation algorithm are provided. The method includes searching for neighboring Global Positioning System (GPS) satellites, receiving, if at least one GPS satellite is detected, pseudo-range information from at least one of the detected GPS satellites and storing the received pseudo-range information, calculating a displacement of a pedestrian terminal based on step detection of a pedestrian, correcting the calculated displacement of the pedestrian terminal using the received pseudo-range information, and measuring the location of the pedestrian terminal is measured using the corrected displacement.
12 Citations
15 Claims
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1. A method for measuring a location of a pedestrian terminal, the method comprising:
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receiving pseudo-range information from at least one of Global Positioning System (GPS) satellite and storing the received pseudo-range information; calculating a displacement of a pedestrian terminal based on a detected number of steps taken by a pedestrian; calculating a distance between the pedestrian terminal and the at least one GPS satellite using the calculated displacement of the pedestrian terminal and orbit information about the at least one GPS satellite; correcting the calculated displacement of the pedestrian terminal using a difference between the received pseudo-range information and the calculated distance; and measuring the location of the pedestrian terminal using the corrected displacement. - View Dependent Claims (2, 3, 13, 15)
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4. An apparatus for measuring a location of a pedestrian terminal, the apparatus comprising:
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a user interface configured to interface with a user; a Global Positioning System (GPS) receiver configured to; receive pseudo-range information from at least one of the GPS satellites; and a controller configured to; calculate a displacement of a pedestrian terminal based on a detected number of steps taken by a pedestrian, calculate a distance between the pedestrian terminal and the at least one GPS satellite using the calculated displacement of the pedestrian terminal and orbit information about the at least one GPS satellite, correct the calculated displacement of the pedestrian using a difference between the received pseudo-range information and the calculated distance, and measure the location of the pedestrian terminal using the corrected displacement. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 14)
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Specification