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    • 9. 发明专利
    • Optical disk device
    • 光盘设备
    • JP2003051117A
    • 2003-02-21
    • JP2001239601
    • 2001-08-07
    • Mitsumi Electric Co Ltdミツミ電機株式会社
    • MAEKAWA YUICHI
    • G11B7/0045G11B7/00G11B7/125
    • G11B27/034G11B7/0045G11B7/126G11B7/1267G11B19/044G11B20/10G11B20/10527G11B2020/10731G11B2020/1074G11B2020/10972G11B2020/1238G11B2020/1239G11B2020/1269G11B2220/215G11B2220/2545
    • PROBLEM TO BE SOLVED: To provide an optical disk device by which data are written once from the position right after the stopped position of the data recording operation without overwrite.
      SOLUTION: This optical disk device is provided with a rotation driving mechanism for mounting the optical disk to rotate it, an optical head wherein an objective lens, actuator, laser diode (light emitting means) 5, split photodiode and laser beam detecting photodiode 61 are furnished, an optical head moving mechanism, a control means (detection means) 9, an analog signal processor, a laser diode driver (driving circuit) 43, a servo processor, a decoder, a memory, an encoder, a voltage adjusting circuit 91, a D/A converter 92 for adjustment and an A/D converter 93 for detection. By the voltage adjusting circuit 91, a voltage V
      3 inputted to the laser diode driver 43 is held to a voltage value at the time when the output of the laser beam becomes the proper laser output of recording time.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供从数据记录操作的停止位置之后的位置写入一次数据而不进行重写的光盘装置。 解决方案:该光盘装置设置有用于安装光盘以使其旋转的旋转驱动机构,其中物镜,致动器,激光二极管(发光装置)5,分离光电二极管和激光束检测光电二极管61的光学头 光学头移动机构,控制装置(检测装置)9,模拟信号处理器,激光二极管驱动器(驱动电路)43,伺服处理器,解码器,存储器,编码器,电压调节电路91 ,用于调整的D / A转换器92和用于检测的A / D转换器93。 通过电压调整电路91,输入到激光二极管驱动器43的电压V3被保持为激光束的输出成为记录时间的正确的激光输出时的电压值。