Uniformity correction method for low cost and non-rectangular touch sensor matrices
US9910544B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Sep 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A correction matrix for use with non-rectangular touch arrays is described. In one embodiment, a sensing device may include a memory and a processing element coupled to the memory. The memory may store a set of touch sense values corresponding to a measured characteristic of at least one unit cell of plurality of unit cells of a non-rectangular touch array and may store a correction matrix. The correction matrix may define an active region and an inactive region of the non-rectangular touch array. The processing element may modify touch sense values of a subset of the plurality of unit cells that are not completely within the active region defined by correction values of the correction matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.