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US 2014/0111468 A1Published application
Position sensing methods and devices with dynamic gain for edge positioning
AssigneeCypress Semiconductor Corporation
InventorsJeffrey David Tucker, Benjamin James Avery
Life of this patent
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Abstract
A method can include determining an initial position of an object with respect to a sensing region formed by a plurality of sensors and having a core region bounded by at least one edge; if the initial position is proximate to the edge and a size of the object was previously calculated, determining a final edge position of the object using the previously calculated object size; and if the initial position is proximate to the edge and the size of the object was not previously calculated, determining a size of the object.
Claims20
A method, comprising:
- determining an initial position of an object with respect to a sensing region formed by a plurality of sensors and having a core region bounded by at least one edge;
- if the initial position is proximate to the edge and a size of the object was previously calculated, determining a final edge position of the object using the previously calculated object size;
- and
- if the initial position is proximate to the edge and the size of the object was not previously calculated, determining a size of the object.
1 more element
A method, comprising:
- determining an initial position of an object with respect to a sensing region formed by a plurality of sensors and having a core region bounded by at least one edge;
- and
- if the object is proximate to the edge, determining a final position of the object by generating values for virtual sensors that extend beyond the edge, the values for virtual sensors being based on a determined object size.
A system, comprising:
- a sense section configured to receive object position data corresponding to sensors forming a sense area having a core region bounded by at least one edge;
- an object size determination section configured to determine and store an object size when the object is initially detected;
- a position calculation section configured to
- determine if an object is proximate an edge of the sense area, and
- calculate a final edge position of the object using a stored object size if previously determined, or newly determine an object size if the object is initially detected proximate to the edge.
2 more elements
Dependencies are inferred from the claim text.