会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Optical information recording and reproducing apparatus
    • 光信息记录和再现装置
    • US06665239B1
    • 2003-12-16
    • US09457140
    • 1999-12-08
    • Junichi TakahashiKoichi KudouNobuaki Toyoshima
    • Junichi TakahashiKoichi KudouNobuaki Toyoshima
    • G11B700
    • G11B7/1384G11B7/0901G11B7/0929G11B7/0933G11B7/0935G11B7/122G11B7/1387
    • An optical information recording/reproducing apparatus enabling fine actuation of almost several nm order for performing the tracking correction includes a pair of fixed electrodes so as to put a probe therebetween in a direction perpendicular to the direction of data row arrangement on a recording medium and a voltage applying medium for applying the voltage between the respective fixed electrodes and the probe. The position of the tip end of the probe is controlled by the action of electrostatic attractive force between the fixed electrodes and the probe caused by applying the voltage thereacross. The probe is constructed with center core clad therearound. The base part is fixed and the sharpened tip end is free, as a so-called cantilever structure. The apparatus further enables to obtain the tracking error. Laser light is emitted from the tip end and radiated onto the information recording medium. The light reflected on the recording medium is converted optoelectrically. The average value of the electric signal is outputted as the tracking error signal. An information recording/reproducing apparatus capable of improving the stability of the control voltage for tracking the probe includes control voltages and bias voltage applying members respectively independent from each other.
    • 一种能够进行近似数nm级的用于执行跟踪校正的精细致动的光学信息记录/再现装置包括一对固定电极,以便在垂直于记录介质上的数据行布置方向的方向上放置探针, 电压施加介质,用于在各个固定电极和探针之间施加电压。 探头前端的位置由施加电压的固定电极与探头之间的静电引力的作用控制。 探头由中心芯构成。 基座部分是固定的,锋利的尖端是自由的,如所谓的悬臂结构。 该装置还能够获得跟踪误差。 激光从尖端发射并辐射到信息记录介质上。 在记录介质上反射的光被光电转换。 输出电信号的平均值作为跟踪误差信号。 能够提高用于跟踪探头的控制电压的稳定性的信息记录/再现装置包括彼此独立的控制电压和偏置电压施加部件。