Spatiotemporal modulation (STM) is used in Ultrasonic Mid-Air Haptics to create compelling tactile sensations. The STM can create perceptually distinct sensations. We specified the sensations of a palm-size pattern by varying the focal point's speed and pattern sampling rate. Three sensations were specified, named as Dynamic, Vibratory and Uniform. A selective identification study was conducted to evaluate if the sensations were recognizable to the perception when presented individually and simultaneously (combined stimuli). The results support the STM's specification and the selective recognition of the sensations was possible for some combinations.

中文翻译：

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超声波空中触觉的时空调制：感觉的规范和验证


时空调制 (STM) 用于超声波空中触觉，以创造引人注目的触觉。 STM 可以创造感知上不同的感觉。我们通过改变焦点的速度和图案采样率来指定手掌大小的图案的感觉。指定了三种感觉，称为动态、振动和均匀。进行了选择性识别研究，以评估当单独和同时（组合刺激）呈现时，感觉是否可以被感知识别。结果支持 STM 的规范，并且对于某些组合可以选择性地识别感觉。