| 摘要 |
PURPOSE:To execute the synchronization of a system with high accuracy and simple operation by oscillating reference oscillation frequency synchronously with the frequency of the carrier signal of a broadcast ratio wave received by the receiving means of each audio apparatus and subordinating and synchronizing each apparatus to the reference frequency. CONSTITUTION:The output of a compact disk player 1, a digital audio tape recorder 2 and a digital tuner 3 is inputted to a digital control center 4 and the digital media source of them is selected by the center 4. Simultaneously to that, a level when it is decoded to an analogue is controlled. Data selected by the center 4 is converted to the analogue by a D/A converter 5 and a voice is outputted by a speaker 7. The player, 1 the recorder 2, the tuner 3, the center 4 and the converter 5 are respectively operated synchronously with the clock of their respective oscillators 1A-5A. Then, clock source 8 controlling the respective oscillators 1A-5A is synchronous with the carrier signal of the broadcast radio wave received by the tuner 3. |
