記録レーザパワーのキャリブレーション方法
文献类型：专利
| 作者 | 河野 睦; 山崎 誠一 |
| 发表日期 | 2001-02-16 |
| 专利号 | JP3159454B2 |
| 著作权人 | パイオニア株式会社 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 記録レーザパワーのキャリブレーション方法 |
| 英文摘要 | PURPOSE:To obtain an optimum recording laser power value accurately by switching a recording signal for calibration to a minimum frequency component pulse which is included in an EFM signal to be recorded and a maximum frequency component pulse in time sharing. CONSTITUTION:A recording signal C1 is formed by a repetitive pattern of a total of 132 T periods using 11T and 3T only, namely three times for 11T pulse section, 10 times for 3T pulse section, 3 times for 11 pulse section again, and then 12 times for 3T pulse. As a result, the 'H' level and 'L' level count of each section are equal as in the 'H' section of 11T pulse 11TX3=33T, 'L' section of 11T pulse 11TX3=33T, 'H' section of 3T pulse 3TX11=33T, 'L' section of 3T pulse 3TX11=33T. Namely. a duty ratio becomes 50%. Then, a change in amplitude center voltage at the time of reproduction becomes steep, thus obtaining an optimum value of an accurate recording laser power. |
| 公开日期 | 2001-04-23 |
| 申请日期 | 1991-02-18 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33370]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | パイオニア株式会社 |
| 推荐引用方式 GB/T 7714 | 河野 睦,山崎 誠一. 記録レーザパワーのキャリブレーション方法. JP3159454B2. 2001-02-16. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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