Key reference updating method and module, and terminal device
US11054947B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Jan 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/94026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In keystroke recognition technologies, a method and a module for updating a keystroke reference, and a terminal device are provided. The method for updating a keystroke reference includes: receiving a pressing interrupt sent by a keystroke chip; obtaining a plurality of pressing capacitance values from the keystroke chip, where the plurality of pressing capacitance values include a capacitance value of the keystroke chip at a generation moment of the pressing interrupt and a capacitance value of the keystroke chip at a scanning moment next to the generation moment of the pressing interrupt; and setting a release reference of the keystroke chip according to the plurality of pressing capacitance values, to improve interchangeability and anti-interference of the keystroke chip with no extra burden on a main control chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.