Phase change type optical recording medium and recording...
Phase-change optical information recording medium and method...
Phase-change optical information recording method
Phase-change optical recording medium and recording method...
PLL circuit and data read-out circuit
PROCESSING AND MANUFACTURING METHOD OF A MASTER FOR OPTICAL...
Processing method of a master disc for optical discs and...
Programmable write signal generator
Programmable write signal generator
Pulse amplitude modulation circuit with pulse width...
Pulse width control circuit