External keyboard for personal digital assistant
US6515852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Aug 29, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/021
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An external keyboard connected to a personal digital assistant (PDA) comprises a keyboard section, a cover including a first portion and a hinged second portion, and a connection port in the center of the hinge between the keyboard section and the cover, the connection port being capable of connecting to a connector of the PDA. A support member is formed at the hinge between first and second portions of cover opposite to an elastic restrain formed at the hinge of the first and the second portions of cover. The restrain is curved and is urged against one side the support member for fastening the support member at a first angle relative to the restrain in one position. Thus, first and second portions of cover are held at the same plane. In another position, second portion of cover is pivoted at a second angle relative to first portion thereof. One side of support member is pivoted to the same angle relative to restrain accordingly. Thus, support member is fastened at the second angle by the elasticity of restrain. As a result, second portion of cover is also held at the second angle. When PDA is connected to connection port and held in first portion of cover, keyboard and PDA are pre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.