Magnetic tracking aid for a hand held scanner

Manual braille writer

Means for generating a tactile character field

Medical personnel and patient communication indicator device

Memory wire braille tactile system

Method and apparatus for tactile transduction of acoustic signal

Method and apparatus for teaching signing

Method and apparatus for training of sensory and perceptual syst

Method and apparatus for training of sensory and perceptual syst

Method and device for displaying graphic information, in particu

Method and device for enhancing the recognition of speech among

Method and device for enhancing the recognition of speech...

Method and device for producing a tactile display using an elect

Method for accessing interactive multimedia information or...

Method for accessing interactive multimedia information or...

Method of communicating with a language deficient patient

Mobility aid for blind persons

Multi-purpose visual-language system based on braille

Multi-symbol message communicator for a speechless, handicapped

Multipurpose check writing guide