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公开(公告)号：US06229932B1
公开(公告)日：2001-05-08
申请号：US09182441
申请日：1998-10-30
IPC分类号： G02B635
CPC分类号： H04Q11/0005 , G02B6/357 , G02B6/358 , G02F1/0121 , H04Q2011/0039 , H04Q2011/0049 , H04Q2011/0083
摘要： An optical signal switching apparatus that maintains an optical switch to a specified state even when noise is generated during the turning on and/or off of power to an optical switch control unit which controls the optical switch. The optical switch control unit includes an optical switch driving unit, a power supply and a power supply surveillance unit. When a specified condition of the power supply is not satisfied, a control signal is generated by the power supply surveillance unit. Upon detection of the control signal the optical switch driving unit, fixes the state of the optical switch to a previously set state without regard to the input to the optical switch driving unit.
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公开(公告)号：US06334009B1
公开(公告)日：2001-12-25
申请号：US09680446
申请日：2000-10-06
IPC分类号： G02B635
CPC分类号： H04Q11/0005 , G02B6/357 , G02B6/358 , G02F1/0121 , H04Q2011/0039 , H04Q2011/0049 , H04Q2011/0083
摘要： An optical signal switching apparatus that maintains an optical switch to a specified state even when noise is generated during the turning on and/or off of power to an optical switch control unit which controls the optical switch. The optical switch control unit includes an optical switch driving unit, a power supply and a power supply surveillance unit. When a specified condition of the power supply is not satisfied, a control signal is generated by the power supply surveillance unit. Upon detection of the control signal the optical switch driving unit, fixes the state of the optical switch to a previously set state without regard to the input to the optical switch driving unit.
摘要翻译： 即使在对控制光开关的光开关控制单元的接通和/或断电时产生噪声的情况下，光信号切换装置将光开关保持在指定状态。 光开关控制单元包括光开关驱动单元，电源和电源监视单元。 当不满足电源的指定条件时，由电源监视单元产生控制信号。 当检测到控制信号时，光开关驱动单元将光开关的状态固定在预先设定的状态，而不用考虑到光开关驱动单元的输入。
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