Ghost resolution for a capacitive touch panel
Ghost resolution sensing methods are provided for capacitive touch panels. When ghost is detected involving two points on a capacitive touch panel, for each of the two points, the intersected traces at that one are concu…
Original patent title: “Ghost resolution for a capacitive touch panel”
What this patent covers
The actual claim
Ghost resolution sensing methods are provided for capacitive touch panels. When ghost is detected involving two points on a capacitive touch panel, for each of the two points, the intersected traces at that one are concurrently charged to sense the capacitance value from either one of the intersected traces, and according thereto, a real point and a ghost point can be distinguished from each other. Alternatively, the intersected traces are crisscross driven by two synchronous and in phase signals or synchronous but out of phase signals, to sense the capacitance values at the two points. Preferably, intersectional calibration is performed in conjunction therewith, to recognize the real points.
What this patent does NOT cover
The boundaries
These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.
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Patent Abstract
Patent abstract
Ghost resolution sensing methods are provided for capacitive touch panels. When ghost is detected involving two points on a capacitive touch panel, for each of the two points, the intersected traces at that one are concurrently charged to sense the capacitance value from either one of the intersected traces, and according thereto, a real point and a ghost point can be distinguished from each other. Alternatively, the intersected traces are crisscross driven by two synchronous and in phase signals or synchronous but out of phase signals, to sense the capacitance values at the two points. Preferably, intersectional calibration is performed in conjunction therewith, to recognize the real points.
Patent Journey
From filing to today
Patent Filed
2009
Patent Granted
2013 · 4yr after filing
Active Today
2026
Expires
2029
PatentBrief Score
Impact Score
Early stage
Citation count
10/40
Early citations
Claim breadth
13/20
Broad claims
Recency
5/20
Granted 10–20 years ago
Assignee scale
0/20
Independent or smaller assignee
PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.
The original legal language
Original claims
19 claims as filed with the patent office.
Citations
Patent lineage
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