Keyboard with induction antenna arranged under a key
US9087662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2013 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Mar 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A keyboard includes a membrane switch circuit module, a metallic supporting plate, plural keys, an induction antenna assembly, and a signal processing unit. The induction antenna assembly includes a first partition plate, a second partition plate and an antenna layer. The first partition plate is arranged between the metallic supporting plate and the keycap of a specified key. The second partition plate is connected with the first partition plate and arranged between the first partition plate and the keycap of the specified key. The antenna layer is arranged between the first partition plate and the second partition plate. The signal processing unit is electrically connected with the antenna layer. When the antenna layer senses that an object enters the sensing range, the signal processing unit issues a sensing signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.