Tactile recognition input device and overlay for use with an input device

摘要: A tactile recognition input device is used by a visually impaired individual, for example, to interact with an electronic device, such as computer. The includes plurality of activation keys movable in direction generally parallel the and preferably away from individual activate transmit signals. Each tactilly recognizable region including, Braille character. overlay existing membrane computer keyboard. member having depressible portions that are below regions on device. Activation disposed over each When one moved, key engages corresponding portion moves contact region. can be surface or blocks removably coupled keys.