Publication Type : Patents
Thematic Areas : Wireless Network and Application
Publisher : 14/690,266 Issued as US Patent 9,996,168 on June 12, 2018, Nonprovisional.
Source : 14/690,266 Issued as US Patent 9,996,168 on June 12, 2018, Nonprovisional, Published Oct 22, 2015.
Campus : Amritapuri
School : School of Engineering
Center : Amrita Center for Wireless Networks and Applications (AmritaWNA)
Department : Computer Science
Year : 2018
Abstract : The tongue drive system (TDS) is an unobtrusive, minimally invasive, wearable and wireless tongue–computer interface (TCI), which can infer its users' intentions, represented in their volitional tongue movements, by detecting the position of a small permanent magnetic tracer attached to the users' tongues. Any specific tongue movements can be translated into user-defined commands and used to access and control various devices in the users' environments. The latest external TDS (eTDS) prototype is built on a wireless headphone and interfaced to a laptop PC and a powered wheelchair. Using customized sensor signal processing algorithms and graphical user interface, the eTDS performance was evaluated by 13 naive subjects with high-level spinal cord injuries (C2–C5) at the Shepherd Center in Atlanta, GA. Results of the human trial show that an average information transfer rate of 95 bits/min was achieved for computer access with 82% accuracy. This information transfer rate is about two times higher than the EEG-based BCIs that are tested on human subjects. It was also demonstrated that the subjects had immediate and full control over the powered wheelchair to the extent that they were able to perform complex wheelchair navigation tasks, such as driving through an obstacle course.
Cite this Research Publication : K. A. Unnikrishn Menon, Jayaram, R., Pullarkatt, D., and Ramesh, M. Vinodini, “Wearble Wireless Tongue Controlled Devices”, 14/690,266 Issued as US Patent 9,996,168 on June 12, 2018, Nonprovisional, Published Oct 22, 2015.