The Tilvus™ Assistive Interface enables individuals with physical disabilities to use a computer through the use of a single switch. Users can do nearly anything with any software. The interface makes common tasks fast and easy, but is powerful enough to provide access to virtually every function of a personal computer.

Switch Access Scanning

The Tilvus menus are navigated via "switch access scanning". Different menu options are highlighted and cycled through at a user-configurable speed and are selected by use of the switch. The menus are scanned in a manner that optimizes efficiency.


Tilvus includes 3 types of cursors which allow users to control mouse functions quickly and efficiently anywhere on the screen. In addition to the innovative "Coaster Cursor", there is the "Crosshair Cursor" and the "Quadrant Cursor", which provide alternate methods of complete mouse control.


Common tasks such as web browsing have additional specialized interfaces that make the user experience even faster and easier, streamlining many common functions. Text entry is achieved through the use of PhraseWeaver™ predictive text, which allows words and phrases to be entered quickly and easily with the assistance of context-sensitive real-time suggestions.


Settings are fully configurable with the single switch interface for full self-sufficiency. There are settings for speeds and modes that customize the user experience for users with various levels of mobility and experience with the software. Menus can also be customized to provide easy access to a user's favorite software and functions.


Tilvus is compatible with nearly any type of switch, so users with a wide range of physical disabilities and mobility can make use of the software. Mouse clicks and keystrokes can both be captured as input. Buttons, pedals, sip-puff devices, and Brain-Computer Interfaces (BCI) are tested input methods. The use of multiple switches is also supported.


The Tilvus Assistive Interface can do more than just switch access scanning. Scanning can be disabled and the software can be used as an interface for eye-tracking or other pointing systems. Keyboards, PhraseWeaver, cursors, and all the other functions of the software can be used to assist users with pointing systems.