| 摘要 |
PURPOSE: A wireless stereo transmitting/receiving device using Bluetooth is provided to transmit a received PCM(Pulse Code Modulation) signal as a wireless signal by using Bluetooth, or to convert a received wireless signal into a Bluetooth packet signal. CONSTITUTION: A USB audio unit(402) with s USB host interface device is recognized as a sound card by an external device, and transmits/receives a PCM signal. A digital signal processor(403) converts a bit stream signal, which is produced by compressing the PCM signal received from the USB audio unit(402) in real time, and a control signal for managing Bluetooth links and data communication into Bluetooth packet signals. A Bluetooth transmitting/receiving unit(404) wirelessly modulates the converted Bluetooth packet signals, and amplifies the modulated packet signals.
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