被引用特許
Active sound control apparatus, US9830902B1
O. Terashima, T. Inoue, Y. Kobayashi

引用特許
Engine sound audio control systems and methods based on intake and/or exhaust temperature, US Patent Application No 15/464,832, 2018,
Claywell, Mark R., Ali Khan, Maqsood Rizwa, Reilly, Scott M (GM)