| Patent application number | Description | Published |
|---|
| 20090099765 | APPARATUS AND METHOD FOR MEASURING VELOCITY OF MOVING OBJECT IN A NAVIGATION SYSTEM - An apparatus and method for measuring a velocity of a moving object in a navigation system are provided, which can increase an accuracy of velocity measurement and position estimation of die moving object are provided. The apparatus includes a sensor part including an acceleration sensor for measuring acceleration of the moving object and outputting a corresponding acceleration measurement value, and includes an altimeter for measuring an altitude of the moving object and outputting a corresponding altitude measurement value; and a calculation part for calculating the velocity of the moving object by using the acceleration measurement value output from the acceleration sensor and the altitude measurement value output from the altimeter. | 04-16-2009 |
| 20100181988 | METHOD FOR REDUCING POWER CONSUMPTION BASED ON MOTION SENSOR AND PORTABLE TERMINAL USING THE SAME - A method for reducing power consumption based on a motion sensor and a portable terminal adapted to the method are disclosed. The method includes terminating driving of a motion recognition program according to whether an input is detected by at least one sensor unit disposed in the portable terminal, and switching a mode of a controller included in the portable terminal into a motion recognition deactivation mode. The motion sensor-based portable terminal can reduce the power consumption, thereby lengthening the life span of the battery. The user can use the motion sensor-based portable terminal for a long period of time without frequently recharging its battery. | 07-22-2010 |
| 20100315253 | Apparatus and method for motion detection in portable terminal - 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. | 12-16-2010 |
| 20110053641 | MOTION INPUT DEVICE FOR PORTABLE TERMINAL AND OPERATION METHOD USING THE SAME - The present invention relates to a motion input device for portable terminal and an operation method using the same. A motion input device of a portable terminal of the present invention includes a sensor unit configured to collect a sensor signal from at least one sensor; an operation recognition unit configured to generate a motion signal corresponding to an operation of portable terminal based on the sensor signal; a scenario preparation unit configured to generate an input scenario based on at least one motion signal; and a scenario mapping unit configured to detect, in a scenario database, a standards scenario corresponding to the input scenario, and to generate an input signal corresponding to the standards scenario. | 03-03-2011 |
| 20110071757 | Method and apparatus for providing service using a sensor and image recognition in a portable terminal - A method and an apparatus provides a service using a sensor and image recognition in a portable terminal that supports Augmented Reality (AR). The method includes determining whether the portable terminal is parallel to ground using an acceleration sensor. When the portable terminal is parallel to the ground, either a map including nearby Point Of Interest (POI) information or constellation information is displayed. | 03-24-2011 |
| 20120004881 | APPARATUS AND METHOD FOR ESTIMATING WALKING STATUS FOR STEP LENGTH ESTIMATION USING PORTABLE TERMINAL - Walking status estimation in a portable terminal includes a method for estimating walking status. The method includes setting an observation using an estimated temporary step length, an acceleration variance, and a step frequency. The method also includes generating an observed probability vector comprising probabilities per walking status according to the observation. The method further includes determining final probabilities per walking status by multiplying the observed probability vector by at least one of an initial probability matrix and one or more status transition probability vectors. The method still further includes determining a walking status having the greatest final probability as a final walking status. | 01-05-2012 |
| 20120006112 | METHOD AND PORTABLE TERMINAL FOR ESTIMATING STEP LENGTH OF PEDESTRIAN - A method and apparatus of a portable terminal estimate a step length of a pedestrian. An accelerometer detects acceleration caused by a movement of the portable terminal as a pedestrian carrying the portable terminal walks. A gyroscope detects angular velocity caused by the movement of the portable terminal as the pedestrian walks. A controller determines a magnitude of a swinging motion of the portable terminal by using at least one of the detected acceleration and angular velocity, determines that the portable terminal makes the swinging motion when the magnitude of the swinging motion is equal to or greater than a predetermined value, determines a carrying position of the portable terminal in the pedestrian's body by using at least one of the detected acceleration and angular velocity, and estimates a step length of the pedestrian according to the determined carrying position of the portable terminal. | 01-12-2012 |
| 20120007820 | APPARATUS AND METHOD FOR OPERATION ACCORDING TO MOVEMENT IN PORTABLE TERMINAL - An apparatus and method operate a portable terminal according to touch and movement. When a touch is sensed, an angle of the portable terminal is determined. When the determined angle belongs to a grip zone, the portable terminal is transitioned to a wake up state. | 01-12-2012 |
