Method and device for inputting a user's instructions based on movement sensing

Abstract

Provided is a user instruction input device operating in a three-dimensional space. The user instruction input device includes a first sensor that senses the angular rate of the device centering on at least one axis, a second sensor that senses the acceleration of the device at least for one direction, and a processing unit that calculates a first rotation angle in a coordinate system independent of the attitude of the first device from the output value of the first sensor, calculates a second rotation angle in the coordinate system from the output value of the second sensor, and calculates the final attitude angle by combining the first rotation angle and the second rotation angle.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is based on and claims priority from Korean Patent Application Nos. 10-2008-0113610, filed on Nov. 14, 2008, and 10-2009-0027100, filed on Mar. 30, 2009, the disclosures of which are incorporated herein in their entireties by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]Methods and apparatuses consistent with the present invention relate to a user instruction input device including a movement sensor. More particularly, the present invention relates to a user instruction input device capable of inputting user instructions naturally and accurately based on device movements in a three-dimensional space.[0004]2. Description of the Related Art[0005]As computer science develops, various devices that allow users to input information in a computer device have been developed. One of such devices is called a user command input device. As a user manipulates such device components, position data correspond...

AI Technical Summary

Benefits of technology

[0011]An objective of the present invention is to input user instructions more naturally and accurately in a device that inputs user instructions through arbitrary movements in a three-dimensional space.

Problems solved by technology

Such a key pad input method has been mainly used because such devices are not fixed on a certain position for the operation of the device unlike a personal computer, and operation is necessary in an open space such as a living room, so it is difficult to use an input means fixed on a plane such as a keyboard or mouse.

However, unlike a technology that inputs user commands through actions on a fixed two-dimensional plane as in a mouse, it is not easy to transmit natural and accurate motions in a user command input device that moves a pointer or a certain object (e.g., a game unit) through an arbitrary action in a three-dimensional space.

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