Keyboard (I)
US6215420A · kind A · utility
138Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/058
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Keyboards with a construction which isolates the interior of the device from water and other deleterious substances in the ambient surroundings. The keyboard also has the capability of transmitting to a second device, upon activation of a key, a coded, preferably infrared (IR) signal uniquely corresponding to the key which is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.