Multi-stage stylus detection
US9013429B1 · kind B1 · utility
41Cited by
6References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 14, 2013 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Aug 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system comprises a processing device and a capacitive sense array that includes a plurality of electrodes. The system receives a first signal from a first scan of electrodes in a capacitive sense array. The system processes the first signal using a first set of sequences to detect a stylus. The system receives a second scan from a second scan of electrodes in a capacitive sense array. The system processes the second signal using a second set of sequences to detect the stylus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.