Typematic guard protocol for wireless keyboards
US6567016B1 · kind B1 · utility
8Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1999 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Dec 3, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0231
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wireless keyboard may be provided with a guard protocol which prevents unintended typematics. An alive signal may be periodically generated to advise a host processor-based system that the keyboard communication link is still effective. If the host processor-based system receives a key make signal but does not receive a break signal or an alive signal, the processor-based system may deduce that the link has gone inactive, and may generate its own break signal. This avoids unnecessary power consumption and unnecessary typematics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.