{"id":5215,"date":"2025-06-30T14:54:34","date_gmt":"2025-06-30T05:54:34","guid":{"rendered":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/?post_type=project&p=5215"},"modified":"2025-10-07T16:25:36","modified_gmt":"2025-10-07T07:25:36","slug":"acoustic-spot-communication-using-two-speakers","status":"publish","type":"project","link":"https:\/\/c-mng.cwh.hokudai.ac.jp\/iis-lab.ist\/Root\/en\/project\/acoustic-spot-communication-using-two-speakers","title":{"rendered":"Acoustic Spot Communication Using Two Speakers"},"content":{"rendered":"\n
We have developed an acoustic communication method that enables spot communication (directional communication) using only a single pair of stereo speakers. This is achieved by transmitting a communication signal and an interference signal from each of the two speakers. Because the interference signal uses a carrier of the same frequency as the communication signal, using orthogonal carriers makes it possible to perform simultaneous directional communication in multiple directions and to generate square spots.
Paper:
\u30fbToyooka, Y., Nakamura, M., Hashizume, H., Sugimoto, M.: Adaptive Acoustic Spot Communication Method for a Moving Target Using Two Speakers, In Proceedings of IPIN 2025 (to appear).
\u30fbNakamura, M., Hashizume, H., Sugimoto, M.: Short-time and Adaptive Controllable Spot Communication using COTS Speaker, In Proceedings of IPIN 2021<\/p>\n<\/div>\n\n\n\n