High-frequency superimposing method and optical disk apparatus using it
文献类型：专利
| 作者 | ASADA, AKIHIRO; KUREBAYASHI, MASAAKI |
| 发表日期 | 2009-08-11 |
| 专利号 | US7573797 |
| 著作权人 | HITACHI CONSUMER ELECTRONICS CO., LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | High-frequency superimposing method and optical disk apparatus using it |
| 英文摘要 | An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling the first high-frequency superimposition unit to stop the superimposition of the high-frequency component for a predetermined duration prior to a timing at which to switch from the space forming semiconductor laser drive current to the mark forming semiconductor laser drive current, eliminating positional variations on the disk of the mark leading and trailing edges due to the high frequency superimposition. |
| 公开日期 | 2009-08-11 |
| 申请日期 | 2007-10-26 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/32675]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI CONSUMER ELECTRONICS CO., LTD. |
| 推荐引用方式 GB/T 7714 | ASADA, AKIHIRO,KUREBAYASHI, MASAAKI. High-frequency superimposing method and optical disk apparatus using it. US7573797. 2009-08-11. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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