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AssigneeTaiyo Yuden Co., Ltd.
InventorsHiroya Kakimoto, Mitsuo Sekiguchi, Isao Matsuda, Masashi Yamada
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The present invention enables a recording condition closer to an optimum to be obtained even for media unknown to a drive. The present invention provides a method that is especially effective for the case where it is applied to a code identification scheme, such as PRML in which code identification is performed on the basis of information on the amplitude of an RF signal. A condition for a recording pulse comprised of a top pulse, an intermediate pulse and a last pulse is configured in a predetermined order, that is, a reference condition is first determined by a test recording involving an examination of recording quality and changes in conditions for a power and a pulse width, then a condition for the last pulse is determined by a test recording using the reference condition, and subsequently a condition for the intermediate pulse is determined using the reference condition and the last pulse. A phase shift is corrected by a test recording using the recording pulse obtained by configuring the above conditions.
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of setting a condition for the last pulse comprising:
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of setting a condition for the last pulse comprising:
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of setting a condition for the intermediate pulse comprising:
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of setting a condition for the intermediate pulse comprising:
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of setting a recording condition, comprising:
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of setting a recording condition, comprising:
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of configuring the recording pulse for each code, comprising:
In an optical information recording device that records information onto an optical recording medium by irradiating a laser beam based on a recording pulse configured corresponding to each of multiple types of codes, the recording pulse comprising a top pulse, an intermediate pulse, and a last pulse, a method of configuring the recording pulse for each code, comprising:
Dependencies are inferred from the claim text.