Method and apparatus for pipelined conversions in touch sensing systems
US9405409B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2011 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Jun 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03547
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensing system and methods of operating the same for pipelined conversions are provided. In one embodiment, the method includes: (i) configuring a capacitive sensing system including a plurality of capacitive sensing elements for a first conversion; (ii) sensing capacitance in the capacitive sensing elements, and converting the capacitance sensed in the capacitive sensing elements to a digital, first conversion result; and (iii) while converting the capacitance sensed to the first conversion result, configuring the capacitive sensing system. In another embodiment, the capacitive sensing system includes a plurality of channels, and sensing capacitance and converting the capacitance sensed to the first conversion result includes integrating analog signals from the capacitive sensing elements for one of the plurality of channels while converting the integrated signal for another of the plurality of channels to a digital subconversion result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.