Abstract: The present invention provides a process for inputting character strings which reduces the number of physical actions required by the user. In this process, the user is provided a rule or rules about which characters in a target character string are to be selected and corresponding mechanism or mechanisms are applied while searching a reference set of possible character strings to identify and present a subset of likely candidates. One illustrative rule is that the user is to select only the consonants in the target character string. One illustrative embodiment of the invention reduces the number of physical actions required by a user entering text into a device when using any of a plurality of input alternatives.

Abstract: The apparatus and method help physically-disabled persons perform point-and-click activities or input text or control characters, which typically require the user to simultaneously control two independent dimensions to select options presented on a computer display. Computer users operate a control in a single dimension (i.e., two directions—first embodiment) or in just one direction (second embodiment). Different input strategies allow a person using the one- or two-directional control method to emulate pointer functions and input characters or character strings. An embodiment augments antagonistic muscle groups for persons exhibiting adequate control in one direction but not the other. An additional embodiment uses available two-dimensional pointers but restricts their operation to one dimension. The output of existing sensors is converted to a form that can be input directly to a computer to be used with a one-dimensional control strategy.