Huo Xueliang, Ghovanloo Maysam
GT-Bionics Lab, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:6393-6. doi: 10.1109/IEMBS.2011.6091578.
Tongue Drive System (TDS) is a wireless tongue operated assistive technology (AT), which can enable people with severe physical disabilities to access computers and drive powered wheelchairs using their volitional tongue movements. TDS offers six discrete commands, simultaneously available to the users, for pointing and typing as a substitute for mouse and keyboard in computer access, respectively. To enhance the TDS performance in typing, we have added a microphone, an audio codec, and a wireless audio link to its readily available 3-axial magnetic sensor array, and combined it with a commercially available speech recognition software, the Dragon Naturally Speaking, which is regarded as one of the most efficient ways for text entry. Our preliminary evaluations indicate that the combined TDS and speech recognition technologies can provide end users with significantly higher performance than using each technology alone, particularly in completing tasks that require both pointing and text entry, such as web surfing.
舌驱动系统（TDS）是一种无线舌控辅助技术（AT），它能使严重身体残疾的人通过自主的舌部运动来操作电脑并驱动电动轮椅。TDS提供六个离散命令，可供用户同时使用，分别用于在电脑操作中替代鼠标进行指向和替代键盘进行打字。为了提高TDS的打字性能，我们在其已有的三轴磁传感器阵列上增加了一个麦克风、一个音频编解码器和一个无线音频链路，并将其与一款商业语音识别软件——Dragon Naturally Speaking相结合，该软件被认为是文本输入最有效的方式之一。我们的初步评估表明，将TDS和语音识别技术相结合，能为终端用户提供比单独使用每种技术显著更高的性能，特别是在完成需要指向和文本输入的任务时，比如上网冲浪。
