US Patent 7451937 Thermostat with handicap access mode

An innovative thermostat having a handicap access mode is described. When the handicap access mode is triggered, the thermostat accepts voice commands to control thermostat settings. This innovative thermostat is a particularly convenient feature for the visually impaired, and individuals with limited mobility. In one exemplary embodiment, the thermostat includes a controller operable in a direct input mode and/or a handicap access mode. When in the direct input mode, the controller receives user commands through mechanical actuation of an adjustment mechanism to adjust a thermostat setting. When in the handicap access mode the controller receives voice commands through a microphone to adjust a thermostat setting.