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US 8,134,888 B2Granted
Method and apparatus of location tracking
AssigneeSamsung Electronics Co., Ltd.
InventorsJae Joon Han, Won-Chul Bang
Life of this patent
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Abstract
Disclosed are an apparatus and a method of location tracking. The location tracking apparatus may calculate a location of an object using an ultrasound. In this instance, an intensity of the used ultrasound may be determined based on a distance to the object, thereby reducing unnecessary power consumption.
Claims15
An apparatus to track a location of an object, the apparatus comprising:
- an intensity determining unit determining an intensity of an ultrasound pulse based on a stored distance between the object and the location tracking apparatus;
- an emission period determining unit determining an emission period of the ultrasound pulse based on motion information of the object;
- an emitting unit emitting an ultrasound pulse having the determined intensity based on the determined emission period;
- a sensing unit sensing the emitted ultrasound pulse;
- and
- a location calculating unit calculating the location of the object based on sensing time information of when the ultrasound pulse is sensed, and updating the stored distance based on the calculated location.
3 more elements
A method of tracking a location, the method comprising:
- determining an intensity of an ultrasound pulse based on a stored distance between an object and a location tracking apparatus;
- determining an emission period of the ultrasound pulse based on motion information of the object;
- emitting an ultrasound pulse having the determined intensity based on the determined emission period;
- sensing the emitted ultrasound pulse;
- calculating a location of the object based on sensing time information of when the ultrasound pulse is sensed;
- and
- updating the stored distance based on the calculated location.
4 more elements
Dependencies are inferred from the claim text.