Patent · US Active

Braille display system and method for operating a refreshable Braille display

US9183759B2 · kind B2 · utility

6Cited by

8References

8Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Pascal Bourdon · Vitré, FR
Francois Le Clerc · Savigny-le-Temple, FR
Pierrick Jouet · Rennes, FR

Key dates

Filing date	Dec 18, 2012
Grant date	Nov 10, 2015
Priority date	—
Expiry date	Mar 23, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG09B21/003
WIPO fieldControl
WIPO sectorInstruments

Abstract

A Braille display system and a method for operating a refreshable Braille display 14 is provided. A string of characters is assigned to a drive signal for specifying the activation or deactivation of a tuple of dots which are raised through holes in a touch and sense surface of the Braille display 14 upon activation and which are retracted upon deactivation. The Braille display 14 is driven by a drive signal which is configured to activate and/or to deactivate the tuple of dots so as to generate a dynamic tactile display of said string of characters. The time dependent characteristic of activation and/or deactivation of the tuple of dots is defined by the string of characters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.