Hardware de-convolution block for multi-phase scanning
US8860682B1 · kind B1 · utility
10Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Sep 11, 2013 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Sep 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses and methods of hardware de-convolution for multi-phase scanning of a touch arrays are described. One apparatus includes a memory device configured to store a capacitance map including convolved capacitance data. The convolved data are results of multi-phase transmit (TX) scanning of a sense array with multiple TX patterns. The apparatus further comprises a de-convolution circuit block coupled to the memory device. The de-convolution circuit block is configured to de-convolve the convolved capacitance data with inverses of the multiple TX patterns to obtain capacitance data for a de-convolved capacitance map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.