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    • 4. 发明申请
    • Optical integrated device
    • 光学集成设备
    • US20050147011A1
    • 2005-07-07
    • US11022816
    • 2004-12-28
    • Shinya EsakiMasaki Taniguchi
    • Shinya EsakiMasaki Taniguchi
    • G11B7/13G11B7/00G11B7/125G11B19/06H01S5/026
    • G11B19/06
    • An optical integrated device includes a light source, a light-receiving element, a signal processing section, and a sleep control circuit. The light source irradiates a light beam onto an optical recording medium. The light-receiving element receives a reflected light of the light beam from the optical recording medium and outputs an electrical signal according to the reflected light. The signal processing section performs predetermined processing on the electrical signal outputted from the light-receiving element. The sleep control circuit is connected to a terminal which outputs a signal indicating the operation voltage of the light source, and controls whether to put the signal processing section in an operation state or a low power consumption state based on the voltage at the terminal.
    • 光学集成装置包括光源,光接收元件,信号处理部分和睡眠控制电路。 光源将光束照射到光记录介质上。 光接收元件从光记录介质接收光束的反射光,并根据反射光输出电信号。 信号处理部对从光接收元件输出的电信号进行预定处理。 睡眠控制电路连接到输出指示光源的操作电压的信号的端子,并且基于端子处的电压来控制是否将信号处理部分置于操作状态或低功耗状态。