ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,196, issued on Sept. 23, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Signal processing apparatus, method, and system" was invented by Tingqiu Yuan (Shenzhen, China), Libin Zhang (Beijing), Huimin Zhang (Shenzhen, China) and Chang Liu (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A signal processing apparatus is configured to preprocess a sound wave signal and output a processed audio signal through an electromagnetic wave. The signal processing apparatus includes: a receiving unit, configured to receive at least one sound wave signal; a conversion unit, configured to convert the at least one sound wave signal...