Multi-view-angle pointing device

Abstract

The invention discloses a multi-view-angle pointing device, which is provided with a large-view-angle lens and a small-view-angle lens. In a short distance, the pointing device uses the large-view-angle lens to widen a visible range. In a long distance, the pointing device uses the small-view-angle lens to improve imaging size. Besides, the pointing device can simultaneously obtain rotating information of the pointing device through sensing of the large-view-angle lens and the small-view-angle lens. Therefore, the pointing device can also provide angle information other than position information.

Description

technical field [0001] The invention relates to a pointing device, in particular to a pointing device with multiple viewing angles to improve the scope of application. Background technique [0002] A multimedia interactive system generally includes a display, an interactive module, and a pointing device. The interactive module is, for example, a game instrument Wii, and the pointing device is a Wii Remote. The interactive module controls the content displayed on the display according to the position information provided by the pointing device, such as displaying a target object (such as a cursor) on the display and moving according to the position information. The pointing device senses a reference point to obtain the position information, which is then provided to the interaction module. More specifically, the reference point is generally a light source disposed next to the display, and the pointing device is generally provided with a lens, an image sensor, and a processo...

AI Technical Summary

Problems solved by technology

For example, if a lens with a wide viewing angle is used, the range that the pointing device can sense is wider, and there is less chance that the reference point will exceed the range of the viewing angle. However, with a lens with a wide viewing angle, the imaging of the reference point will be smaller, so The distance between the pointing device and the reference point should not be too far

Conversely, using a lens with a narrow field of view allows the pointing device to be used at longer distances, but increases the chances of the reference point being out of the field of view

Therefore, in the prior art, if the viewing angle of the pointing device is to be improved, the applicable distance of the pointing device must be sacrificed, and if the applicable distance of the pointing device is to be increased, the viewing angle of the pointing device must be sacrificed. dilemma

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