Refreshable braille display system
US6354839B1 · kind B1 · utility
94Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1998 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Oct 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B21/003
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A refreshable Braille display comprising a plurality of Braille dots that extend and retract arranged in Braille characters such that the Braille dots are operable as a personal computer monitor allowing a blind person to discern the information displayed thereon by reading the Braille characters formed by the extended Braille dots. At least one microelectromechanical device operably connects to the Braille dots such that the Braille dots retract and extend based upon the operation of the microelectromechanical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.