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    • 74. 发明授权
    • Optical transmission apparatus and optical attenuation amount control method
    • 光传输装置及光衰减量控制方法
    • US08554070B2
    • 2013-10-08
    • US13229443
    • 2011-09-09
    • Taichi UekiShigeru Ishii
    • Taichi UekiShigeru Ishii
    • G02F1/00H04B10/08H04B10/04
    • H04B10/506H04B10/564H04J14/0204H04J14/0212H04J14/0217H04J14/0221H04J14/0256H04J14/0257H04J14/0258H04J14/0275
    • A storage device stores information regarding a channel from which an optical transmission apparatus at a subsequent stage drops a signal light. A processor determines that switching from second channel transmission using a larger number of channels than a first number of channels to first channel transmission is performed, and controls an attenuation amount, when performing the first channel transmission using the first number of channels, by referring to the storage device according to the determination and making the attenuation amount in a no-signal channel larger than a determine value if the no-signal channel whose wavelength is within a determined range from the wavelength of the signal light channel for the first channel transmission is a channel from which the optical transmission apparatus at the subsequent stage drops a signal light, so as to transmit an amplified spontaneous emission light along the no-signal channel.
    • 存储装置存储关于下一级的光传输装置的信道的信息丢弃信号光。 处理器确定执行使用比第一数量的信道更多数量的信道从第二信道传输切换到第一信道传输,并且当使用第一数量的信道执行第一信道传输时,通过参考 如果波长在从第一信道传输的信号光信道的波长确定的范围内的无信号信道是根据确定并使无信号信道中的衰减量大于确定值的存储装置, 下一级的光传输装置从该信道放下信号光,以便沿无信号信道发送放大的自发发射光。
    • 79. 发明授权
    • Cooling device
    • 冷却装置
    • US07823410B2
    • 2010-11-02
    • US10577269
    • 2004-10-26
    • Shigeru IshiiKazunori Terasaki
    • Shigeru IshiiKazunori Terasaki
    • F25D25/02
    • F25D13/067F25D17/06F25D2317/0681F25D2317/0682F25D2500/02
    • In a cooling device for cooling an object to be cooled without using a forced cold air circulating system, which circulates cold air forcibly, a cooling device at a practical level is provided, and a cooling device capable of achieving a sufficient cooling effect is provided. A cooler 18 is provided in an interior that is insulated adiabatically from an exterior, a cooling fan 20 is disposed on a front surface of the cooler 18, a cooling chamber 22 in which an object to be cooled is placed is defined by a space in front of the cooling fan 20, a cooled air behind the cooling fan 20 is drawn with the fan and allowed to flow into the cooling chamber 22, and a/D=½ to ¼ is satisfied, where a indicates a dimension of a gap between the cooler 18 and the cooling fan 20 along a front-back direction and D indicates a diameter of the cooling fan 20.
    • 在不使用强制循环冷空气的强制冷气循环系统的冷却装置中,冷却被冷却物体的冷却装置,提供了实用水平的冷却装置,能够实现充分的冷却效果的冷却装置。 冷却器18设置在与外部绝热绝缘的内部,冷却风扇20设置在冷却器18的前表面上,冷却室22中,待冷却物体被放置在其中的空间 在冷却风扇20的前方,冷却风扇20后方的冷却空气与风扇一起被抽出并允许流入冷却室22,并且a / D = 1/2至1/4,其中a表示 冷却器18和冷却风扇20沿着前后方向,D表示冷却风扇20的直径。