Device for transmission of signs and characters from a data-processing system to a deaf-blind person

摘要

The communication device (2) includes equipment for exerting temporary stimulation in the form of points, areas or lines on a person's hand (1). The stimulation-exerting equipment is mobile and can be moved by an actuator (5a,5b) and stepper motors, according to instructions given by a control device (3). The strength of stimulation exerted can be adjusted. Several individual stimulation units can be fitted adjacent to each other in the form of a grid or matrix. Stimulation can be effected by jets of air, directed towards the hand by nozzles. A pump is used to take in air and pass it through a valve to the nozzles, according to switching instructions from the data processing system.