Abstract: A portable terminal includes an apparatus for improving motion detection capability. More particularly, the apparatus improves motion detection capability by changing a motion in a normal state according to a motion state or by changing a motion detection process in the portable terminal in order to avoid motion detection capability deterioration in the portable terminal are provided. The apparatus includes a terminal state determiner that determines a motion state of the terminal by receiving sensing information for determining the motion state, and a controller that changes a motion detection process according to the portable terminal's motion state determined by the terminal state determiner.

Abstract: An apparatus for acquiring a position of a portable terminal includes a position estimating unit for estimating a position of a portable terminal based on prestored reference information, and a control unit for detecting—the position of the portable terminal using information from a server, wherein when there is a failure to acquire the position information of the portable terminal using the information from the server, the position estimating unit acquires the position of the portable terminal based on the estimated position of the portable terminal.

Abstract: A portable terminal includes an apparatus for improving motion detection capability. More particularly, the apparatus improves motion detection capability by changing a motion in a normal state according to a motion state or by changing a motion detection process in the portable terminal in order to avoid motion detection capability deterioration in the portable terminal are provided. The apparatus includes a terminal state determiner that determines a motion state of the terminal by receiving sensing information for determining the motion state, and a controller that changes a motion detection process according to the portable terminal's motion state determined by the terminal state determiner.

Abstract: A positioning method and apparatus of an electronic device which comprises a Global Navigation Satellite System (GNSS) or Global Positioning System (GPS), and an Inertial Navigation System (INS), includes receiving a satellite signal through the GNSS. A location of the electronic device and a reliability of location information of the electronic device is determined based on the satellite signal provided by the GNSS using at least one of satellite information of the satellite signal and location information based on the determined location of the electronic device. An operational level of the INS is determined using the reliability of the location information of the electronic device; and compensating the location of the electronic device by operating the INS according to the determined operational level of the INS.

Abstract: A portable terminal includes an apparatus for improving motion detection capability. More particularly, the apparatus improves motion detection capability by changing a motion in a normal state according to a motion state or by changing a motion detection process in the portable terminal in order to avoid motion detection capability deterioration in the portable terminal are provided. The apparatus includes a terminal state determiner that determines a motion state of the terminal by receiving sensing information for determining the motion state, and a controller that changes a motion detection process according to the portable terminal's motion state determined by the terminal state determiner.

Abstract: A user authentication apparatus and method for allowing a user to conveniently perform user authentication by a touch and motion-based gesture in a terminal are provided. In the user authentication apparatus, a low-power sensor platform is configured to transfer a wake-up signal to a controller upon detecting a motion of the terminal for waking up while the terminal is in a sleep mode, and to transfer a motion signal generated while the terminal is in a wake-up mode to the controller. The controller is configured to switch the terminal to the wake-up mode in response to the wake-up signal that is received from the low-power sensor platform while the terminal is in the sleep mode, and to switch to a user-authenticated specific application mode upon receiving the motion signal from the low-power sensor platform during a touch occurring in a specific area while the terminal is in the wake-up mode.

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.

Abstract: A method and apparatus for providing location information are provided. The method includes estimating location information is estimated, calculating an error value of the estimated location information, controlling activation of a location determination module according to the error value, and providing location information using at least one of the estimated location information and location information determined by the location determination module.

Abstract: A multimedia service system includes a portable terminal that communicates with a server. When a portable terminal is located at or within a building, the portable terminal acquires floor information of the building from a server, calculates a present altitude itself, determines a floor corresponding to the calculated altitude from the floor information, receives a multimedia service for the detected floor from the server, and outputs the received multimedia service. The server provides altitude-by-altitude floor information of the building and a floor-by-floor multimedia service to the portable terminal.

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.

Abstract: An apparatus for acquiring a position of a portable terminal includes a position estimating unit for estimating a position of a portable terminal based on prestored reference information, and a control unit for detecting—the position of the portable terminal using information from a server, wherein when there is a failure to acquire the position information of the portable terminal using the information from the server, the position estimating unit acquires the position of the portable terminal based on the estimated position of the portable terminal.

Abstract: Disclosed are method and apparatus for evaluating reliability of reckoning location information and providing reliability information. A mobile terminal implementing the method provides a user with a handheld device to provide accurate location information. The method for providing reliability of a reckoning location preferably includes: reckoning a location using speed and direction information input from a sensor unit when satellite signal intensity of GPS satellite information is less than a first threshold value; calculating a moving distance using the reckoning location for a reckoned time of the location; evaluating the reliability of the reckoning location according to the moving distance; and providing the reckoning location and the reliability to a location information utility unit such that the location information utility unit determines presence of utility of the reckoning location according to the reliability.

Abstract: A method and apparatus for determining accuracy information of location information. The method includes receiving Global Positioning System (GPS) location information of a user terminal from a GPS, determining whether the user terminal enters into a GPS shadow area, checking terminal movement information including a moving speed and a moving direction of the user terminal, when the user terminal enters into the GPS shadow area, estimating location information of the user terminal based on the terminal movement information, checking auxiliary location information including a moving state of the user terminal, error information of a terrestrial magnetism sensor, and the moving speed of the user terminal, and determining the accuracy information based on an accumulated location error of the estimated location information, based on the auxiliary location information.

Abstract: An apparatus and method for recognizing a specific area of an image in a portable terminal. More particularly, an apparatus and method are for determining feature points with very high similarities as one group when the portable terminal recognizes a building included in an image or a picture, and for estimating a matching relation of the group to improve building recognition performance. The apparatus includes an image analyzer configured to, upon extracting feature points used for building recognition, classify feature points with similarities among the extracted feature points into a group, and recognize a building after estimating a matching relation by regarding the classified group as a feature point.

Abstract: An apparatus and method provides a location information service in a portable terminal when the predicted location is reliable. The apparatus includes a validity determiner for, by a moving pattern of a user, determining the validity of location information previously predicted using Pedestrian Dead Reckoning (PDR) information.

Abstract: A portable terminal includes an apparatus for improving motion detection capability. More particularly, the apparatus improves motion detection capability by changing a motion in a normal state according to a motion state or by changing a motion detection process in the portable terminal in order to avoid motion detection capability deterioration in the portable terminal are provided. The apparatus includes a terminal state determiner that determines a motion state of the terminal by receiving sensing information for determining the motion state, and a controller that changes a motion detection process according to the portable terminal's motion state determined by the terminal state determiner.