Multiplexing and demultiplexing to reduce drive and sense electrodes for single layer touch sensors
US9760217B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Mar 12, 2014 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Mar 29, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for using data from a single-layer touch sensor to track a single object by using a coded stimulus drive pattern in order to multiplex data onto a sense electrode, measure the sense electrode, and then demultiplexing information from the measurement of the sense electrode in order to obtain position information regarding at least one object on the touch sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.