Method, apparatus, and computer-readable medium for key press determination
US7453376B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2004 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Jul 1, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M11/003
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system, method, and computer-readable medium having instructions for determining a key press from a current keyboard state at a current time is described. The system stores signals indicative of a last key press, a last key press time, and a last keyboard state. The system determines released keys and pressed keys on the keyboard at the current time based on comparison with the last keyboard state. The system determines a key press at the current time if the first determination determines a single key press and if either of: (a) a match exists between the determined key press and the last key pressed and if the elapsed time between the current time and the last key press time is larger than a preset bounce time; and (b) a match does not exist between the determined key press and the last key press.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.