Method and device for position detection
First Claim
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1. A method for position detection, comprising:
- providing a plurality of intersecting regions constituted by a plurality of intersecting conductive stripes;
determining whether each intersecting region is a depressed intersecting region by determining whether there is a conduction path between a pair of conductive stripes intersected in the intersecting region;
determining the position of a contact point corresponding to each depressed intersecting region;
performing a filter procedure to provide a position of the contact point falling within a predetermine range corresponding to the intersecting region; and
determining the position of at least one depression based on the provided position of the contact point.
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Abstract
A device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of strips intersecting on an intersecting region contact to each other on a contact point to form a depressed intersecting region. The erroneously determined intersecting regions can be detected by comparing the contact points with the corresponding intersecting regions so as to provide the only correct contact points.
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Citations
20 Claims
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1. A method for position detection, comprising:
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providing a plurality of intersecting regions constituted by a plurality of intersecting conductive stripes; determining whether each intersecting region is a depressed intersecting region by determining whether there is a conduction path between a pair of conductive stripes intersected in the intersecting region; determining the position of a contact point corresponding to each depressed intersecting region; performing a filter procedure to provide a position of the contact point falling within a predetermine range corresponding to the intersecting region; and determining the position of at least one depression based on the provided position of the contact point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for position detection, comprising:
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a sensor including a plurality of conductive stripes constituting a plurality of intersecting regions, wherein a pair of conductive stripes intersected in an intersecting region form a contact point due to electrical contact so as to define a depressed intersecting region; a driver for providing a high potential and a low potential; a detector for detecting a signal of at least one conductive stripe; a selector for operatively coupling the conductive stripes with the driver and the detector; and a controller for controlling the driver, the detector and the selector to perform at least the following operations; determining the position of a contact point corresponding to each depressed intersecting region; performing a filter procedure to provide a position of the contact point falling within a predetermine range corresponding to the intersecting region; and determining the position of at least one depression based on the provided position of the contact point. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification