† Seiji Kitakaze ‡ Yoshinori Arifuku,Tatsuro ImaokaShin'ichi Fukuzumi
† 1st C&C Systems Operations Unit, NEC Corporation
‡ Koisikawa Research Center, Telecommunications Advancement Organization of Japan
Human Media Research Laboratories, NEC Corporation
For the swift realization of a modern, information-centered society, an approach that will facilitate elderly and physically handicapped people using public infrastructure, through the support of conversation aids, transmission of ideas, education and recruitment, is required as an urgent task.
The writers have accumulated particular data on the characteristics of movement of physically handicapped subjects that have difficulty inputting data into a computer, for each individual according to the content of the disability. Through registration, we have studied a system that will allow the subjects to input data freely, regardless of the disability.
In this paper, we look at the time-related factors that control keyboard input, and analyze the relationship with the disability and consider an input system appropriate for the users.
At first, we confirmed four parameters, including "keyboard input time", as being valid as time-related parameters affecting keyboard input.
Next, through the analysis of actual test data, we adjusted the parameters according to the content of the disability so that input at an almost normal level was possible.
Furthermore., through analysis of the dispersion of experimental data, we could statistically process the data and propose a discrimination formula. Following the calculation, a method of discriminating for each user could be set, and through re-input tests, it was confirmed that the error rate for each user were reduced and the validity of the formula could be confirmed.