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Jiadi Yu

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titleconferencedate
Acoustic Sensing and Communication Using MetasurfaceNSDI 20232023-04-17
System combines a passive 16×16 metasurface with a tiny speaker array and joint optimization of metasurface phase, speaker codebook, and geometry to steer…
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Endophasia: Utilizing Acoustic-Based Imaging for Issuing Contact-Free Silent Speech CommandsUbiComp 20212021-09-21
A phone app emits an up‑converted GSM sequence through its speaker and uses the microphone to recover channel impulse responses while a user mouths words…
Talk
VocalLock: Sensing Vocal Tract for Passphrase-Independent User Authentication Leveraging ...UbiComp / ISWC 20202020-09-12
A smartphone system senses the vocal tract with FMCW acoustic sensing (20 ms period, 16–24 kHz) to capture static shape and dynamic movement, converts…
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