| 摘要 |
A digital audio repetitive reproduction system provided with a compact disc operating circuit for operating a compact disc to read an audio signal from the compact disc, a radio frequency processing circuit for processing the read audio signal from the compact disc operating circuit in a radio frequency form, a digital signal processing circuit for processing the resultant radio frequency signal in a digital form, a digital/analog converter for converting the resultant digital audio data from the digital signal processing circuit into an analog audio signal, a microcomputer for outputting a plurality of control signals to control the entire operation of the system and a servo mechanism for controlling the compact disc operating circuit in response to the corresponding control signal from the microcomputer. The system includes a memory unit connected to the digital signal processing circuit to store the digital audio data from the digital signal processing circuit and a switching circuit connected among the memory unit, the digital signal processing circuit and the digital/analog converter to select one of the digital audio data from the memory unit and the digital signal processing circuit in response to the corresponding control signals from the microcomputer and outputting the selected digital audio data to the digital/analog converter.
|
