DIGITAL AUDIO SYSTEM USING BLUETOOTH, CAPABLE OF TRANSMITTING AUDIO SIGNALS TO PLURAL SPEAKERS HAVING BLUETOOTH MODULES

摘要

PURPOSE: A digital audio system is provided to enable plural users to wirelessly listen to desired music in any place where Bluetooth communication is possible if the users store the desired music in a digital audio device. CONSTITUTION: A digital audio system comprises an input module(150), a memory(120), an output module(160), a Bluetooth module(170) and a controller(110). The input module(150) converts external audio signals into digital audio signals, and receives the converted signals. The memory(120) stores the received digital audio signals. The output module(160) extracts the audio data from the memory(120), and converts the audio signals into analog audio signals. The Bluetooth module(170) converts the analog audio signals, transmitted by the output module(160), into digital audio signals, modulates the digital signals into Bluetooth signals, amplifies the Bluetooth signals, and transmits the amplified audio signals to external speakers.