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    • 34. 发明授权
    • Method for upgrading an optical transmission system and an optical transmitter
    • 光传输系统和光发射机升级方法
    • US07177540B2
    • 2007-02-13
    • US10903999
    • 2004-07-29
    • Takanori InoueHidenori TagaKoji Goto
    • Takanori InoueHidenori TagaKoji Goto
    • H04B10/08H01S3/00
    • H04J14/0221
    • A transmission wavelength band in an optical transmission line is divided into a plurality of sub-bands and signal lights or an ASE dummy light is disposed per sub-band as a unit. The optical power of the ASE dummy light in each sub-band is controlled so as to realize the gain profile at a full implementation in the optical transmission line. While new signal lights are being added, the optical power of whole ASE dummy lights or the optical power of the ASE dummy lights in sub-bands adjacent to the sub-band in which the new signal lights are to be added is controlled while increasing the optical power of the new signal lights so that the transmission characteristics of the existing signal lights are not affected by the signal addition.
    • 光传输线中的透射波长带被分成多个子带和信号光,或者每个子带设置ASE伪光作为一个单位。 控制每个子带中的ASE伪光的光功率,以便在光传输线中完全实现时实现增益分布。 在添加新的信号灯的同时,控制整个ASE虚拟光的光功率或与要添加新信号灯的子带相邻的子带中的ASE伪光的光功率,同时增加 新信号光功率使得现有信号灯的传输特性不受信号增加的影响。
    • 40. 发明授权
    • Repair signal generating circuit
    • 修理信号发生电路
    • US06236599B1
    • 2001-05-22
    • US09610951
    • 2000-07-06
    • Koji Goto
    • Koji Goto
    • G11C700
    • G11C29/785G11C17/18H01L2924/0002H01L2924/00
    • In a repair signal generating circuit, a first p-channel transistor has its source connected to a power supply, and a reset signal is input into its gate. An n-channel transistor has its source connected to a terminal of a grounded fuse, its drain connected to the drain of the first p-channel transistor, and the reset signal is input into its gate. A second p-channel transistor has its drain connected to the drains of the first p-channel transistor and the n-channel transistor, and its source connected to the power supply. The on-resistance of the second p-channel transistor is higher than that of the n-channel transistor. An inverter has its input terminal connected to the drains of the first p-channel transistor and the n-channel transistor, and its output terminal, where a repair signal is output, connected to the gate of the second p-channel transistor.
    • 在修复信号发生电路中,第一p沟道晶体管的源极连接到电源,并且复位信号被输入到其栅极。 n沟道晶体管的源极连接到接地熔丝的端子,其漏极连接到第一p沟道晶体管的漏极,复位信号输入其栅极。 第二个p沟道晶体管的漏极连接到第一个p沟道晶体管和n沟道晶体管的漏极,其源极连接到电源上。 第二p沟道晶体管的导通电阻高于n沟道晶体管的导通电阻。 逆变器的输入端连接到第一p沟道晶体管和n沟道晶体管的漏极,其输出端,其中输出修复信号,连接到第二p沟道晶体管的栅极。