Haptic communication system using cutaneous actuators for simulation of continuous human touch
摘要
說明書
The benefits and advantages of the embodiments disclosed herein are as follows. The temporal envelope is a one-dimensional signal and may be represented as a single time-varying waveform to reduce memory and processing requirements and increase efficiency of transmission. Therefore, the disclosed embodiments lead to efficiency in memory, processing, and transmission over frequency decomposition methods. The disclosed embodiments further lead to a low-dimensional approach to haptic encoding. The processing power needed is reduced due to the smaller number of channels that are processed and because temporal envelope extraction is performed with less computational complexity than frequency decomposition. Additional advantages and benefits of the disclosed embodiments (especially related to using the ratio of the high frequency signal power to the low frequency signal power to drive actuator activity) are that vowels are relatively easy to recognize using automated techniques and by humans in a haptic representation of speech. Consonants are shorter in duration and have ambiguous spectral signatures. By slowing the dynamics of the haptic presentation during consonants, relative to the speed at which vowels are displayed, the accuracy of perception will increase with less degradation of speed compared to uniform slowing.
