Dynamic microphone insertion detection device and method based on car-mounted multimedia

• Main Authors: CAI YANPING, TANG YIMING, XIAO ZHENLONG, CHEN RUTAO
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2017
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The invention discloses a dynamic microphone insertion detection device and method based on car-mounted multimedia. The device comprises a microphone port, a microphone insertion detection circuit, a CPU, a microphone signal pickup circuit, and a sound effect processing and audio power amplification circuit, wherein a first end of the microphone port is connected with a first end of the microphone signal pickup circuit; a second end of the microphone port is connected with both a second end of the microphone signal pickup circuit and the ground; the CPU is communicated with the sound effect processing and audio power amplification circuit through I2C; the output end of the microphone signal pickup circuit is connected with a first end of the sound effect processing and audio power amplification circuit; and the microphone insertion detection circuit is arranged between the microphone port and the CPU in a connected manner, and used for detecting a microphone insertion status. The device has the advantages tha