Programmable tactile stimulator array system and method of opera

Details Programmable tactile stimulator array system and method of opera Programmable tactile stimulator array system and method of opera

1990-08-10

1992-11-24

Apley, Richard J.

Education and demonstration

Communication aids for the handicapped

Tactile reading aid

434112, 128 44, 34082519, 400124, G09B 2100

Patent

active

051658976

ABSTRACT:
A tactile stimulator array system and method of operational incorporating a plurality of tactile elements having touch-stimulating portions which are positioned through corresponding openings formed in a touch plate. The tactile elements are moved by actuator wires which are formed of a shape-memory alloy material. Electrical control signals from a programmed computer system heat individual wires through the materials phase change transition temperature so that the wires contract to their memory shapes and raise the elements. The touch-stimulating portions then extend above the touch plate where they can be sensed by the user.

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patent: 4633121 (1986-12-01), Ogawa et al.
patent: 4664632 (1987-05-01), Tretiakoff et al.
patent: 4944727 (1990-07-01), Mclevy

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