Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide has a layered crystal structure of space group R3m, includes the nickel (Ni) in an amount of 60 mol % or less based on a total amount of transition metals, includes the cobalt (Co) in an amount greater than an amount of the manganese (Mn), and is composed of single particles.

Abstract: The present invention relates to an apparatus for providing an azimuth angle, i.e., an apparatus for calculating an azimuth angle using an angular rate sensed by a gyro sensor, which has rotated by an arbitrary angle, and an angle of rotation. The apparatus for providing an azimuth angle in accordance with one embodiment of the present invention may comprise a rotating member, an angular rate sensor mounted on the rotating member, and a driving unit configured to rotate the rotating member by a first angle. The angular rate sensor may be configured to sense an angular rate of the rotating member. The apparatus may further comprise an azimuth angle estimation unit configured to estimate an azimuth angle of the apparatus based on the sensed angular rate and the first angle.

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.

Abstract: The present invention relates to an apparatus for providing an azimuth angle, i.e., an apparatus for calculating an azimuth angle using an angular rate sensed by a gyro sensor, which has rotated by an arbitrary angle, and an angle of rotation. The apparatus for providing an azimuth angle in accordance with one embodiment of the present invention may comprise a rotating member, an angular rate sensor mounted on the rotating member, and a driving unit configured to rotate the rotating member by a first angle. The angular rate sensor may be configured to sense an angular rate of the rotating member. The apparatus may further comprise an azimuth angle estimation unit configured to estimate an azimuth angle of the apparatus based on the sensed angular rate and the first angle.

Abstract: Provided is an input device for operating in a three-dimensional space and inputting user instructions. The input device includes a first operation unit that calculates a first rotation angle in a coordinate system independent of the attitude of the device based on the output value of a first sensor, a second operation unit that calculates a second rotation angle in the coordinate system based on the output value of a second sensor, an attitude angle measuring unit that calculates the attitude angle of the input device by combining the first rotation angle and the second rotation angle, and an intensity calculation unit that calculates force intensity in the coordinate system using acceleration of the input device and the attitude angle of the input device obtained in the attitude measuring unit.

Abstract: Provided are a motion recognition apparatus and method, and more particularly, a motion recognition apparatus and method which are employed to move a pointer only when intended by a user using a touch sensor included in a pointing device that moves the pointer according to a motion sensed by a motion sensor.

Abstract: Provided is an input device for operating in a three-dimensional space and inputting user instructions. The input device includes a first operation unit that calculates a first rotation angle in a coordinate system independent of the attitude of the device based on the output value of a first sensor, a second operation unit that calculates a second rotation angle in the coordinate system based on the output value of a second sensor, an attitude angle measuring unit that calculates the attitude angle of the input device by combining the first rotation angle and the second rotation angle, and an intensity calculation unit that calculates force intensity in the coordinate system using acceleration of the input device and the attitude angle of the input device obtained in the attitude measuring unit.

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.