Extended input device for portable wireless communication apparatus
US6748248B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2000 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Feb 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/23
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An extended input device for a portable wireless communication apparatus includes a first input keypad, a second input keypad, a pivot portion connecting the first input keypad and the second input keypad, and pivotally switching the first input keypad and the second input keypad between a normal and an operating statuses, and a signal transmission portion connected to the first input keypad and the second input keypad for transmitting a signal between the extended input device and the portable wireless communication apparatus. Therefore, the extended input device can provide an enough area for typing and a small size for being easily packed up to be carried on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.