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1. 发明授权

US07539424B2 Burst mode optical receiver for maintaining constant signal amplitude 有权
标题翻译：突发模式光接收机用于保持恒定的信号幅度
公开(公告)号：US07539424B2
公开(公告)日：2009-05-26
申请号：US10696142
申请日：2003-10-28
申请人： Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee , Ja Won Seo
发明人： Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee , Ja Won Seo
IPC分类号： H04B10/06
CPC分类号： H04B10/6931
摘要： Provided is a burst mode optical receiver capable of accurately detecting an optical signal of minimum amplitude, by automatically controlling a gain of a pre-amplifier according to an amplitude of an input optical signal. The burst mode optical receiver can automatically control a gain of a pre-amplifier according to the amplitude of an input optical signal using an output signal of a first peak detector. In other words, when the input optical signal has a small amplitude that meets the receiving sensitivity of the burst mode optical receiver, the gain of the pre-amplifier automatically increases, thereby improving the receiving sensitivity of the burst mode optical receiver.
摘要翻译：提供了能够通过根据输入光信号的幅度自动控制前置放大器的增益来精确地检测最小幅度的光信号的突发模式光接收机。突发模式光接收机可以使用第一峰值检测器的输出信号根据输入光信号的幅度自动控制前置放大器的增益。换句话说，当输入光信号具有满足突发模式光接收机的接收灵敏度的小幅度时，前置放大器的增益自动增加，从而提高突发模式光接收机的接收灵敏度。

2. 发明授权

US07369781B2 Burst mode optical receiver considering characteristic of extinction ratio of received optical signal 失效
标题翻译：考虑接收光信号消光比特性的突发模式光接收机
公开(公告)号：US07369781B2
公开(公告)日：2008-05-06
申请号：US10705100
申请日：2003-11-10
申请人： Ja Won Seo , Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee
发明人： Ja Won Seo , Ho Yong Kang , Hyun Kyun Choi , Tae Whan Yoo , Hyeong Ho Lee , Sang Gug Lee , Man Seop Lee
IPC分类号： H04B10/06 , H03G3/30
CPC分类号： H04B10/693
摘要： Provided is a burst mode optical receiver considering a characteristic of an extinction ratio of a received optical signal is provided. By using a peak detector considering a characteristic of an extinction ratio, top and bottom peak voltages of actual burst packets can be precisely detected while not being affected by a DC offset corresponding to an extinction ratio even though burst packets having a DC offset corresponding to the extinction ratio are received. Accordingly, waveform distortion of a signal output from the burst mode optical receiver can be minimized.
摘要翻译：提供了考虑接收光信号的消光比特性的突发模式光接收机。通过使用考虑到消光比特性的峰值检测器，可以精确地检测实际脉冲串分组的顶部和底部峰值电压，而不受与消光比相对应的DC偏移的影响，即使具有对应于接收消光比。因此，可以使从突发模式光接收器输出的信号的波形失真最小化。

3. 发明授权

US07412173B2 Apparatus for generating optical carrier suppressed return-to-zero 失效
标题翻译：用于产生光载波的装置抑制归零
公开(公告)号：US07412173B2
公开(公告)日：2008-08-12
申请号：US10802762
申请日：2004-03-18
申请人： Dong Soo Lee , Man Seop Lee , Sang Soo Lee , Je Soo Ko
发明人： Dong Soo Lee , Man Seop Lee , Sang Soo Lee , Je Soo Ko
IPC分类号： H04B10/04
CPC分类号： H04B10/505 , H04B10/5051 , H04B10/508
摘要： An apparatus for generating a Carrier-Suppressed Return-to-Zero (CS-RZ) signal is disclosed. The apparatus includes a mixer, a Low Pass Filter (LPF), a driver amplifier and a single external modulator. The mixer generates a modulator input by mixing data with a half clock signal. The LPF band-limits the modulator input data into low frequency band data. The driver amplifier amplifies the modulator input data generated by the mixing of the mixer and the band-limiting of the LPF. The external modulator generates CS-RZ signal, in which the phases of adjacent pulses have been inverted, by applying bias voltage to the modulator input data to be placed at the null point of the transfer function of the external modulator.
摘要翻译：公开了一种用于产生载波抑制归零（CS-RZ）信号的装置。该装置包括混频器，低通滤波器（LPF），驱动放大器和单个外部调制器。混频器通过将数据与半个时钟信号混合来产生调制器输入。 LPF频带将调制器输入数据限制为低频带数据。驱动器放大器放大由混频器混频产生的调制器输入数据和LPF的带限制。外部调制器通过向调制器输入数据施加偏置电压而产生CS-RZ信号，其中相邻脉冲的相位已被反相，以将其置于外部调制器的传递函数的零点。

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