ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,382,223, issued on Aug. 5, was assigned to Zhaoqing Hejia Electronics Co. LTD (Zhaoqing, China).
"USB gaming headphone with dual-sound-card output" was invented by Qibin Mai (Gaoyao, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a USB gaming headphone with dual-sound-card output, which includes a main chip, an headphone amplifier chip circuit, a microphone, and a total volume potentiometer, where the main chip is at least provided with 2 sound cards, and the main chip is also electrically connected to a mixing potentiometer and the microphone, and the mixing potentiometer adjusts the output of the sound cards proport...