Three-dimensional information detecting device, three-dimensional information detecting sensor device, and three-dimensional information indicating device
AssigneeWacom Co., Ltd.
InventorsMasamitsu Fukushima, Yasuo Oda, Masamitsu Ito, Toshihiko Horie
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Abstract
A three-dimensional information sensor device is disclosed in which sensor coils thereof are sequentially selected by a control section. Signals are communicated between indicating coils of a three-dimensional information indicating device and sensor coils by electromagnetic coupling. The signals received by each of the selected coils are detected by detecting means. The position and the direction of the indicating device in a three-dimensional apace are calculated by control means based on the detected signals.
Claims34
A three-dimensional information detecting device, comprising:
- an indicator having at least one indicating coil;
- a plurality of sensor coils that are disposed along a detection surface so as to intersect each other, and that are electromagnetically coupled to said indicating coil;
- a selector that selectively switches said sensor coils;
- a signal generator that generates signals to be communicated between the indicating coil and the selected sensor coil, by electromagnetic coupling;
- a signal detector that detects signals received by the selected sensor coil or the indicating coil;
- and
- a calculator that calculates a position and a direction of said indicator in a three-dimensional space, based on the detection signals detected by said signal detector.
A three-dimensional information sensor device, comprising:
- a plurality of sensor coils that are disposed along a detection surface so as to intersect each other, and that are electromagnetically coupled to an indicating coil of an indicator;
- a selector that selectively switches said sensor coils;
- a signal generator that generates signals to be communicated between the indicating coil and the selected sensor coil, by electromagnetic coupling;
- a signal detector that detects signals received by the selected sensor coil or the indicating coil, the signals generated by a signal generator;
- and
- a calculator that calculates a position and a direction of said indicator in a three-dimensional space, based on the signals detected by said signal detector.
A three-dimensional information indicating device, comprising:
- a plurality of indicating coils for transmitting signals to, and for receiving signals from, a plurality of sensor coils by electromagnetic coupling, said plurality of indicating coils having at least two indicating coils, wherein said indicating coils are disposed so that the central positions thereof deviate from each other, and wherein said indicating coils are disposed so that the central axes thereof orthogonally intersect each other.
Dependencies are inferred from the claim text.