| 摘要 |
A Bluetooth-typed headset assembly for mobile phones is provided to enhance user convenience by reproducing a high quality sound by using an FM(Frequency Modulation) radio and a car stereo speaker. A Bluetooth-typed antenna and an RF transceiver(10) receive signals from a mobile phone. A DSP(Digital Signal Processor)(11) processes the received signal. A controller(12) controls the DSP. Left/right earphones(ER,EL) receive reproduced sound from an audio interface(13). A Bluetooth block(BB) delivers the reproduced sound, which is delivered to the earphones. The Bluetooth block is embedded on a PCB(Printed Circuit Board) in a headset. A selector receives an output signal from the earphones or an audio signal from an external audio device. An FM transmitter block(FB) transmits the output signal from the selector to an FM receiver and includes an audio interface(20), an FM converter(21), and an RF transmitter(22). The FM transmitter block is mounted on the PCB.
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