Screen control system
The invention discloses a screen control system, comprising a panel, a magnetic element, at least three magnetic sensors and a processor, wherein the magnetic element instructs pointed position on the panel, the magnetic sensors are under the panel while each one senses the magnetic field of the mag...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention discloses a screen control system, comprising a panel, a magnetic element, at least three magnetic sensors and a processor, wherein the magnetic element instructs pointed position on the panel, the magnetic sensors are under the panel while each one senses the magnetic field of the magnetic element at pointed position, to convert the sensed magnetic field into output voltage, and the processor is coupled with each magnetic sensor and the panel respectively to calculate the coordinate of the pointed position according to all output voltages, therefore, the screen control system can display the pointed position to user. |
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