3D pointing device and method for compensating for rotation of 3D pointing device

Abstract

A 3D pointing device uses a rotation sensor and can accurately convert the rotation and movement of the 3D pointing device into a movement pattern on a display plane of a display device. The 3D pointing device includes an orientation sensor, a rotation sensor, and a calculation sensor. The orientation sensor generates an orientation output associated with an orientation of the 3D pointing device, and the orientation of the 3D pointing device is associated with three axes of a global reference coordinate associated with the Earth. The rotation sensor generates a rotation output associated with a rotation of the 3D pointing device, and the rotation of the 3D pointing device is associated with three axes of a spatial reference coordinate associated with the 3D pointing device. The arithmetic processor uses the orientation output and the rotation output to generate a transformation output that is associated with a fixed reference coordinate associated with a display device.

Description

technical field [0001] The present invention relates to a 3D pointing device, in particular to a 3D pointing device using an orientation sensor for use in computers, motion detection, or navigation, and in particular to a 3D pointing device that is used when the 3D pointing device moves and rotates A method for compensating the signal of the orientation sensor. Background technique [0002] figure 1 It is shown that the user uses a portable electronic device 110, such as a 3D pointing device or a computer mouse, to detect the motion of the portable electronic device, and convert the detected motion into a display cursor (cursor display), which is shown in FIG. The display cursor is, for example, a cursor pointing on the screen 122 of a 2D display device 120 . That is, when the portable electronic device 110 emits a light, the corresponding point is where the light hits the screen 122 . For example, the portable electronic device 110 can be a computer mouse or a handle of ...

AI Technical Summary

Problems solved by technology

In the case where the cursor in the prior art reaches the border of a display, and then goes beyond the border or border for an additional distance, when the cursor comes to a new position, whether inside the display or still outside the border, the cursor cannot exhibit a correct or absolute pattern

In other words, when arriving at a new position, the cursor of the known technology will not take into account the above-mentioned extra distance beyond the border in an absolute manner, but will discard the extra distance beyond the border, also because the cursor uses the relative movement relationship, resulting in outputting a wrong next position

Since the correct position cannot be obtained on the border of the display, and the next position of the cursor is obtained by using the above-mentioned relative movement relationship, the actual movement template cannot be estimated.

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