| 摘要 |
A method is described for setting an optimum write power for recording information on an optical recording medium. A series of test patterns (20', 21', 22') is written on the medium, the test patterns being written with different write powers. The values of the write power in subsequent test patterns form a symmetrical pattern. On reading the test patterns, the modulation of each read signal is determined. An optimum value of the write power is determined from the modulations.
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