Patent US 4,520,501

A speech presentation method and apparatus which afford a dual multiple point matrix presentation of speech as patterns of points corresponding to codes representing speech phonemes and the characteristic mouth formations that produce the phonemes. Spatial patterns may be presented in either tactile or visual form, or both, from the output of a microcomputer speech analyzer that analyzes speech in real time, from a keyboard that generates phoneme- and mouth form-representing signals, or from a memory device that reproduces pre-recorded spatial patterns. The speech analyzer may be incorporated into an armband with a pair of tactile stimulator matrices to provide an unobtrusive prosthetic device for heating-handicapped individuals. A modified 16 mm projector records spatial patterns on punched film and projects the patterns onto a display to provide a visual presentation.