Linear Scanning

An input method for AAC devices and on-screen keyboards where selections are highlighted sequentially, typically row by row and then item by item, allowing users with severe motor impairments to select options using a single switch. The system automatically moves through options at a configurable speed, and the user activates their switch when the desired item is highlighted. While slower than direct selection, linear scanning enables text entry and communication for people who can only control a single input, such as those with locked-in syndrome or severe cerebral palsy.