Element with expansible relief

Details Element with expansible relief Element with expansible relief

2005-04-12

2005-04-12

Banks, Derris H. (Department: 3712)

Education and demonstration

Communication aids for the handicapped

C434S113000, C434S114000

Reexamination Certificate

active

06877986

ABSTRACT:
An element (10) comprises sealed cavities (24) arranged according to a regular pattern. Each cavity (24) contains a product such as a wax which changes in volume, in reversible fashion, when a given temperature threshold is crossed, together with an individual heating organ (26). The cavities (24) are separated from the front face (10a) of the element by a mobile or deformable organ (38). A separate piloting for each of the heating organs (26) makes it possible to make the relief of the front face (10a) of the element evolve in controlled fashion. Such an element can be used to re-transcribe, in relief, tactile (visually handicapped) or visual information.

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International Search Document PCT/FR01/01926, filed Jun. 20, 2001.
Kawai, “Interactive Tactile Display System—A Support System for the Visually Disabled to Recognize 3D Objects”, Assets, Annual ACM Conference on Assistive Technologies, pp. 45-50 (Apr. 11, 1996).
Way, Thomas P. et al., “Automatic Visual to Tactile Translation—Part I: Human Factors, Acess Methods, and Image Manipulation”, IEEE, vol. 5, No. 1, pp. 81-94 (Mar. 1, 1997).

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