Multiple fingers touch sensing method using matching algorithm
US8194051B2 · kind B2 · utility
43Cited by
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22Claims
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Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Nov 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04104
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensing method for detecting positions of touching is disclosed. In the present invention, a reference touch profile is provided. A variable ideal combination profile indicating multiple touches is obtained by synthesizing a plurality of reference touch profiles at different positions. The variable ideal combination profile is matched with a sensing signal. Actual touch positions can be identified from the sensing signal when the matching of the variable ideal combination profile with the sensing signal is optimal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.