Input system with detection of coordinates
AssigneeSuper Elite Technology Company Limited
InventorChih-Cheng Chen
Life of this patent
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Abstract
A coordinate detection input system includes two elongated lead wires with insulation grounding device, control circuit, a zero device and another two elongated lead wires with another insulation grounding device. The two elongated lead wires correspond to X-coordinate and Y-coordinate of the input system. The control circuit is used for detecting magnitude of a magnetic field. The zero device is used for making terrestrial magnetism and overall magnetic field interfering source zero. The further two elongated lead wires are disposed at the opposite sides of the X-coordinate and the Y-coordinate respectively for checking and enhancing accuracy.
Claims1
An input system with detection of coordinates, comprising:
- two elongated lead wires with insulation grounding device, the two elongated lead wires being corresponding to X-coordinate and X-coordinate of the input system;
- control circuit, being used for detecting magnitude of a magnetic field;
- a zero device, being used for making terrestrial magnetism and overall magnetic field interfering source zero;
- and
- another two elongated lead wires with another insulation grounding device, being disposed at an opposite side of the X-coordinate and an opposite side of the Y-coordinate respectively for checking and enhancing accuracy.
Dependencies are inferred from the claim text.