Wireless telephone with sliding keyboard
US6128475A · kind A · utility
44Cited by
24References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 4, 1997 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Apr 4, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/0235
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An extension provided on a wireless telephone unit allows the unit to be compact while still providing an enhanced display, a keyboard, and a data input device. The keyboard is disposed on the extension which is slidable between a retracted and an extended position. When in the retracted position, the extension covers the data input device and most of the display. A single line of text remains uncovered for use when the extension is retracted. In the extended position, the extension uncovers a large display and data input device for use by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.