Speech supported navigation of a pointer in a graphical user interface

摘要

Disclosed is a method and a tool for speech controlled navigation of a pointer in a graphical user interface. Known approaches use speech commands like the arrow keys of a keyboard and are little user friendly. The invention therefore provides a space of discrete position states (quantization) for the pointer which can be only navigated via those discrete positions by means of speech command input. The granularity of the discrete position states can be adapted to the respective application window and the position states can be represented by a system of coordinates where the speech command input is based on absolute or relative coordinates. Advantageously a copy image of the graphical user interface of operation can be provided in front of or besides the actual user interface and a proxy pointer device is displayed on the copy image. Hereby only the copy image comprises the discrete position states, and the speech input commands are only transferred to the copy image. Navigation of the pointer device within the copy is permanently transferred and converted into respective commands on in the actual user interface. Hereby an operation event effected by the proxy pointer is effecting a respective event at the user interface.