US 8,441,438 B2
3D pointing device and method for compensating movement thereofGeneral
US 8,441,438 B2
3D pointing device and method for compensating movement thereof
Tech Center:
2600 Communications
Examiner:
William Boddie
Art Unit:
2699 Selective Visual Display Systems
Inventors:
Zhou Ye; Chin-Lung Li; Shun-Nan Liou
Assignee:
Priority:
01/06/10
Filed:
11/11/10
Granted:
05/14/13
Expiration:
08/12/30
Abstract
A three-dimensional (3D) pointing device capable of accurately outputting a deviation including yaw, pitch and roll angles in a 3D reference frame and preferably in an absolute manner is provided. Said 3D pointing device comprises a six-axis motion sensor module including a rotation sensor and an accelerometer, and a processing and transmitting module. The six-axis motion sensor module generates a first signal set comprising angular velocities and a second signal set comprising axial accelerations associated with said movements and rotations of the 3D pointing device in the 3D reference frame. The processing and transmitting module utilizes a comparison method to compare the first signal set with the second signal set to obtain an updated state of the six-axis motion sensor module based on a current state and a measured state thereof in order to output the resulting deviation in the 3D reference frame and preferably in an absolute manner.
Cooperative Patent Classification (CPC)
G06G06F3/0383G06FG09G5/00G09G