GRID SIGNAL RECEIVER AND WIRELESS POINTING SYSTEM HAVING THE SAME
First Claim
1. A grid signal receiver that receives a signal of a grid pattern from a grid signal transmitter and determines motion of the grid signal transmitter, the grid signal receiver comprising a slope sensor in addition to a motion sensor for sensing motion of a grid, the slope sensor sensing a slope of the grid to sense a slope of the grid signal transmitter.
1 Assignment
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Accused Products
Abstract
The present invention relates to a grid signal receiver and a wireless pointing system having the same. The grid signal receiver receives a signal of a grid pattern from a grid signal transmitter and determines motion of the grid signal transmitter, the grid signal receiver including a slope sensor in addition to a motion sensor for sensing motion of a grid, the slope sensor sensing a slope of the grid to sense a slope of the grid signal transmitter.
4 Citations
19 Claims
- 1. A grid signal receiver that receives a signal of a grid pattern from a grid signal transmitter and determines motion of the grid signal transmitter, the grid signal receiver comprising a slope sensor in addition to a motion sensor for sensing motion of a grid, the slope sensor sensing a slope of the grid to sense a slope of the grid signal transmitter.
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18. A wireless pointing system comprising:
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a grid signal transmitter to generate and output a signal having a grid pattern signal; and a grid signal receiver to process a motion vector to receive the signal of the grid pattern and calculate motion, the grid signal receiver comprising a slope sensor in addition to a motion sensor to sense motion of a grid, so that a slope of the grid signal transmitter is sensed and the motion vector is compensated on the basis of slope information. - View Dependent Claims (19)
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Specification