Optical recording/reproducing device
文献类型：专利
| 作者 | SASAKI YOSHIHIRO; SEKIGUCHI TORU |
| 发表日期 | 1990-08-13 |
| 专利号 | JP1990203435A |
| 著作权人 | 日本電気株式会社 |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical recording/reproducing device |
| 英文摘要 | PURPOSE:To correct the transient answer of a laser oscillator at start of a recording job by controlling the input voltage of an error amplifier contained in an APC circuit before and after the recording job. CONSTITUTION:A monitor amplifier 2 is prepared to detect the optical output of a laser oscillator 1 together with an APC (automatic light quantity control) circuit 4 which controls the light quantity of the oscillator 1 at recording, the drive circuits 3 and 5 for the oscillator 1, and a circuit which sets the input of the circuit 4 so as to obtain at reproduction the same voltage value as that applied to the circuit 4 at recording. Then the input of the circuit 4 is set so that the voltage value applied to the circuit 5 at recording is obtained at reproduction. Thus it is possible to correct the transient answer of the drive current of the oscillator 1 when a recording job is started. |
| 公开日期 | 1990-08-13 |
| 申请日期 | 1989-02-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59614]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 日本電気株式会社 |
| 推荐引用方式 GB/T 7714 | SASAKI YOSHIHIRO,SEKIGUCHI TORU. Optical recording/reproducing device. JP1990203435A. 1990-08-13. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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