ANGLE MEASUREMENT BY USE OF MULTIPLE ORIENTED LIGHT SOURCES

摘要

Embodiments of the present invention may provide a relative angular motion measurement system that includes a remote device used to control operations of a host device. The remote may include a plurality of light sources with predetermined light distribution patterns and angles of orientation with respect to a major axis of the remote. The host device may include a sensor and a controller. The sensor may detect light emitted from the remote (via the light sources) and generate output signals that may be interpreted by the controller. The controller may interpret the output signals from the sensor to estimate received intensity from each light source and calculate the orientation of the remote device based on data representing the light sources' light distribution patterns with fixed angles of orientation.