GENEVA, April 4 -- LINKPLAY TECHNOLOGY INC. NANJING (Room 8036, No. 7, Yingcui Road, Jiangjun Avenue, Jiangning Development Zone, Jiangning DistrictNanjing, Jiangsu 211100), 南京乐韵瑞信息技术有限公司 (中国江苏省南京市江宁区将军大道迎翠路7号8036室（江宁开发区）) filed a patent application (PCT/CN2025/088545) for "AUTOMATIC DELAY CALIBRATION METHOD FOR SMART SPEAKER SYSTEM, DEVICE, AND STORAGE MEDIUM" on Apr 11, 2025. With publication no. WO/2026/066023, the details related to the patent application was pu...