光学記録再生装置
文献类型：专利
| 作者 | 小川 博司 |
| 发表日期 | 1994-08-31 |
| 专利号 | JP1994068848B2 |
| 著作权人 | SONY CORP |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 光学記録再生装置 |
| 英文摘要 | PURPOSE:To change an optical output quickly in accordance with mode switching by arranging a means for obtaining the optical output corresponding to the mode on the outside of an APC loop. CONSTITUTION:In an optical recording and reproducing device such as an optical disk provided with an APC circuit (automatic power control circuit), current flowing into a laser diode is controlled independently of a recording or reproducing mode. Namely, the current i0 is controlled by sampling executed by a comparator 5 in the APC loop in a comparatively long period in accordance with temperature change and the capacity of the current i0 is immediately changed by mode selecting signals SR, SW, SE to obtain a prescribed optical output. Since the means for changing the current i0 in accordance with the change of the mode is formed in a circuit different from the APC loop, the change of the current i0 can be responded to the change of the mode at a high speed and also can be moderately responded to the temperature change. |
| 公开日期 | 1994-08-31 |
| 申请日期 | 1985-04-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33243]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SONY CORP |
| 推荐引用方式 GB/T 7714 | 小川 博司. 光学記録再生装置. JP1994068848B2. 1994-08-31. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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