IDENTIFICATION DATA TRANSMISSION METHOD FOR SERVO CONTROL AND DISC PLAYER ADOPTING THE SAME.

摘要

AN IDENTIFICATION (ID) DATA TRANSMISSION METHOD WHICH PERFORMS A SERVO CONTROL AND A DISC PLAYER ADOPTING THE SAME ARE PROVIDED. AN ID DECODER (10) DECODES THE ID DATA FROM A SIGNAL RECORDED ON THE OPTICAL DISC, AND OUTPUTS THE DECODED ID DATA AT A CONSTANT TRANSMISSION RATE. A MICROPROCESSOR (20) RECEIVING THE ID DATA TO USE IT FOR CONTROLLING A SERVO, COMPARES AN ID TRANSMISSION RATE WITH AN ID DATA PROCESSING RATE TO BE USED FOR THE SERVO CONTROL, AND CONTROLS THE ID DATA TRANSMISSION RATE OF THE ID DECODER (10) BASED ON THE COMPARISON RESULT. THE DISC PLAYER CAN EFFICIENTLY PERFORM A TIMING CONTROL OF PROGRAMS IN THE MICROPROCESSOR (20). (FIGURE 1)