US Patent Issued to Shenzhen Bluetrum Technology on March 25 for "Method for generating active noise reduction filter, storage medium and earphone" (Chinese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,260,848, issued on March 25, was assigned to Shenzhen Bluetrum Technology Co. Ltd. (Shenzhen, China).

"Method for generating active noise reduction filter, storage medium and earphone" was invented by Shali Wei (Guangdong, China), Chongming Xu (Guangdong, China) and Xiangen Deng (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for generating an active noise reduction filter includes: obtaining a physically noise-reduced signal, the physically noise-reduced signal being a signal received by a feedback microphone after a noise signal passes through an earphone, obtaining a mixed signal, the mixed signal being a signal received by...