DISC COMMUNICATION STRUCTURE

摘要

To provide a disk communication structure capable of stable communication without restriction of data transfer rate and capacity. An electronic circuit such as microcomputer is provided on the disk 10. First optical means 13 is provided on the disk 10 Second optical means 21 is provided on the stationary portion 20 physically separated from the disk 10. The first and second optical means 13, 21 are opposed each other. Optical communication is performed between the first and second optical means 13, 21.