| 摘要 |
A METHOD AND APPARATUS FOR RECORDING INFORMATION USING MARKS (6) FORMED ON A RECORDING MEDIUM (8). THE APPARATUS INCLUDES AN EXCLUSIVE LOGIC SUM CIRCUIT AND THE METHOD INCLUDES THE STEPS OF FORMING DATA (51) CORRESPONDING TO THE MARKS (6) FROM THE INFORMATION TO BE RECORDED, INPUTTING THE DATA (51) INTO ONE INPUT OF THE EXCLUSIVE LOGIC SUM CIRCUIT, INPUTTING, INITIALLY A RANDOM SIGNAL (52) AND THEN AN OUTPUT SIGNAL OF THE EXCLUSIVE LOGIC SUM CIRCUIT TO ANOTHER INPUT OF THE EXCLUSIVE LOGIC SUM CIRCUIT, AND FORMING THE MARKS (6) ON THE RECORDING MEDIUM (8) IN ACCORDANCE WITH THE OUTPUT SIGNAL OF THE EXCLUSIVE LOGIC SUM CIRCUIT. (FIGURE 5)
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