US 12,108,201 B1
USB game microphone with double sound card output devices
Qibin Mai, Gaoyao (CN)
Assigned to Shenzhen Xunweijia Technology Development Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Xunweijia Technology Development Co., Ltd., Shenzhen (CN)
Filed on Jan. 5, 2024, as Appl. No. 18/405,131.
Claims priority of application No. 202311826245.5 (CN), filed on Dec. 28, 2023.
Int. Cl. H04R 1/08 (2006.01); H04R 3/00 (2006.01)
CPC H04R 1/08 (2013.01) [H04R 3/00 (2013.01); H04R 2410/03 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A USB game microphone with double sound card output devices, comprising:
a master chip,
a microphone potentiometer electrically connected to the master chip,
a microphone input circuit electrically connected to the microphone potentiometer,
a microphone core electrically connected to the microphone input circuit,
an operational amplifier low-pass filter electrically connected to the master chip,
a headphone amplifier chip circuit electrically connected to the operational amplifier low-pass filter, and
a hybrid potentiometer electrically connected to the master chip,
wherein the microphone core is configured to collect an analog signal, and the analog signal is processed by the microphone input circuit, adjusted by the microphone potentiometer and then processed in the master chip, and wherein the master chip is at least provided with two sound cards, the analog signal is processed by the two sound cards in the master chip, outputs of the two sound cards are filtered by the operational amplifier low-pass filter after being adjusted in an equal proportion by the hybrid potentiometer to generate signals of left and right sound channels, and the signals of left and right sound channels are amplified by the headphone amplifier chip circuit.