Mandarin Stroke Input Software with Predictive Word Function for Eye-Gaze Access




This is a software design with algorithm to process a series of strokes or radicals to form Chinese words. The user interface also allows for easy access with eye-gaze selection methods – direct access and dwelling. It should also allow switch-scanning access methods in future. The target users are all potential users of Augmentative and Alternative Communication means due to loss of speech and physical movements. Given the ease of use, it can potentially be used with mainstream devices for all who require stroke input method. We are looking for commercial partners who are able to develop this software further and able to interface it with various operating systems and access methods.


The first prototype contains the following key technical features: Grouping of all strokes into 5 basic groups Predictive text choices based on first few key strokes Wildcard key stroke User interface design Basic keyboard with basic keys Advanced keyboard with additional common character parts Settings adjustment for size, speed etc Colour coding


Primary application area: Patients who are unable to speak and move their hands due to some neurological conditions or medical issues often require alternative communication means eg. using their eyes to control a computer and type out messages. Existing software and devices so far only support patients who are either literate in English or able to type Mandarin characters with “han yu pin yin”. However, there is a population of such patients who is Chinese literate who now then have no means to communicate as they were used to writing out the characters on paper and pen, or drawing on their phones. With this software, these patients can then communicate and access technology more easily. Other areas/markets: Given the ease of use, it can potentially be used with all mainstream devices for anyone who require stroke input method to type out Chinese characters. The word prediction function can be also helpful for those who only remember part of the Chinese characters compared to searching through words that sound alike with “han yu pin yin” input.


Benefits of this technology for the users: Reduce need to learn han yu pin yin Challenging due to unfamiliarity with English alphabets and transcription of sounds Reduce dependence on communication partners Customized communication charts inadequate for communication partners to predict user’s responses Reduce frustration in both user and their communication partners Increase independence and autonomy Users can participate actively in decision making processes Reduce length of stay in hospital Improve care outcomes Reduce communication breakdown between healthcare professionals and patients