AIR POINTER WITH IMPROVED USER EXPERIENCE

摘要

The invention discloses a device and a method to control an object on a surface using motion sensor measurements and relative and absolute pointing algorithms. Relative pointing is preferred at low speeds and absolute pointing is preferred at high speeds. Transition between the results of the two algorithms has to be smoothed, using a weighted combination of the two results. The weights may be made dependent over time or over speed of the device. Maximum and minimum values of different parameters may have to be set to avoid jumps or changes in direction which may affect the user's experience negatively.;The goal is that the user has consistent perceptions what he or she sees on the screen and the movements he or she imparts on the device, while still keeping the position of the object as close as possible to the position calculated by an absolute pointing algorithm.

主权项

1. A device for controlling a virtual object on a surface comprising:
Sensing capabilities configured for producing an output formed from a timed series of measurements in relation to the device, said measurements selected from a group comprising altitude, position, first and second derivatives thereof; Processing capabilities configured for producing, at least, during a time window determined by at least one of a starting and an ending triggering event, from the output of the sensing capabilities, at least a first dataset and a second dataset, each one representative of at least one of orientation and position of the virtual object, first and second derivatives thereof;said processing capabilities being further configured to produce during said time window, from the at least first and second datasets, a third dataset representative of at least one of a position of a point of the virtual object and an orientation of said virtual object, said third dataset being calculated as a weighted combination of the at least first and second datasets, wherein the weight of the at least first and second datasets in said combination varies during the time window.