Recent work has shown that inaudible signals (at ultrasound frequencies) can be designed
in a way that they become audible to microphones. Designed well, this can empower an …

An ultrasonic Positioning System (UPS) has outperformed RF-based systems in terms of its
accuracy for years. However, few of the developed solutions have been deployed in practice …

Recent studies show that the voice control system (VCS) is subject to the inaudible voice
command attack, which can not be heard by human ears but can be recorded by the …

Within the burgeoning 6G wireless network landscape, there is an intensified push toward
achieving all-encompassing accessibility through integrated solutions spanning a multitude …

Hidden screen-camera communication emerges as a key enabler for the next generation
videos that allow side information, such as TV commercials, augmented contents, and even …

An audio transmitter includes a first ultrasonic speaker associated with a first channel; a
second ultrasonic speaker co-located with the first ultrasonic speaker and associated with a …

An ultrasonic positioning system (UPS) has demonstrated its high accuracy for years.
However, few of the developed solutions have been deployed in practice to satisfy the …

The widespread of smart devices and the development of mobile networks brings the
growing popularity of live streaming services worldwide. In addition to the video and audio …

The feasibility of using vibration energy harvesting (VEH) as an energy-efficient receiver for
short-range acoustic data communication has been investigated recently. When data was …

The widespread use of intelligent devices and the development of mobile networks have led
to the increasing popularity of live-streaming services worldwide. In addition to video and …