초록 ▼

A system that has a remote control, e.g., a wand, equipped with a relative motion sensor that outputs data indicative of a change in position of the wand. The system also has one or more light sources and a photodetector that detects their light and outputs data indicative of the detected light. The

A system that has a remote control, e.g., a wand, equipped with a relative motion sensor that outputs data indicative of a change in position of the wand. The system also has one or more light sources and a photodetector that detects their light and outputs data indicative of the detected light. The system uses one or more controllers to determine the absolute position of the wand based on the data output by the relative motion sensor and by the photodetector. The data enables determination of the absolute pose of the wand, which includes the absolute position of a reference point chosen on the wand and the absolute orientation of the wand. To properly express the absolute parameters of position and/or orientation of the wand a reference location is chosen with respect to which the calculations are performed. The system is coupled to a display that shows an image defined by a first and second orthogonal axes such as two axes belonging to world coordinates (Xo,Yo,Zo). The one or more controllers are configured to generate signals that are a function of the absolute position of the wand in or along a third axis for rendering the display. To simplify the mapping of a real three-dimensional environment in which the wand is operated to the cyberspace of the application that the system is running, the third axis is preferably the third Cartesian coordinate axis of world coordinates (Xo,Yo,Zo).

대표청구항 ▼

The invention claimed is: 1. A system comprising:a) a first plurality of predetermined light sources disposed in an asymmetric substantially linear pattern;b) a photodetector configured to detect said first plurality of predetermined light sources and generate photodetector data representative of th

The invention claimed is: 1. A system comprising:a) a first plurality of predetermined light sources disposed in an asymmetric substantially linear pattern;b) a photodetector configured to detect said first plurality of predetermined light sources and generate photodetector data representative of the positions of said first plurality of predetermined light sources;c) a controller configured to identify a derivative pattern of said first plurality of predetermined light sources from said photodetector data, wherein said derivative pattern is indicative of the position of said photodetector;d) a remote control, said photodetector being in said remote control;wherein said controller is further configured to determine an absolute position of said remote control with respect to a reference location, and wherein said system is coupled to a display that shows an image substantially defined by a first and a second orthogonal axes, and wherein said controller is configured to generate signals for rendering said display, said signals being a function of said absolute position of said remote control in a third axis, said third axis being orthogonal to said first and second orthogonal axes.