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    • 4. 发明申请
    • Estimation device
    • 估计装置
    • US20070147661A1
    • 2007-06-28
    • US11642763
    • 2006-12-20
    • Naoki FukayaMikio ShimizuShin IshiiTomohiro ShibataTakashi Bando
    • Naoki FukayaMikio ShimizuShin IshiiTomohiro ShibataTakashi Bando
    • G06K9/00
    • G06K9/00248
    • An estimation device estimates a hidden state of an estimation subject from an observable state in a manner of a time series. The observable state is observed from the hidden state of the estimation subject under a procedure that has a hierarchical structure, which includes the hidden state of the estimation subject, the observable state, and an intermediate hidden state therebetween. The estimation device includes an estimation subject hidden state predicting means, an intermediate hidden state predicting means based on the state transition structure of the hidden state of the estimation subject, an intermediate hidden state likelihood observing means, an intermediate hidden state estimating means, an estimation subject hidden state likelihood observing means, estimation subject hidden state estimating means, an intermediate hidden state predicting means based on the state transition structure of the intermediate hidden state, and the mixing means.
    • 估计装置以时间序列的方式估计估计对象的可观察状态的隐藏状态。 从具有层次结构的程序的估计对象的隐藏状态观察可观察状态,其包括估计对象的隐藏状态,可观察状态和它们之间的中间隐藏状态。 估计装置包括估计对象隐藏状态预测装置,基于估计对象的隐藏状态的状态转移结构的中间隐藏状态预测装置,中间隐藏状态似然观察装置,中间隐藏状态估计装置,估计 被摄体隐藏状态似然观察装置,估计对象隐藏状态估计装置,基于中间隐藏状态的状态转移结构的中间隐藏状态预测装置和混合装置。
    • 6. 发明授权
    • Optical pulse pattern generator
    • 光脉冲图案发生器
    • US06804433B2
    • 2004-10-12
    • US10335990
    • 2003-01-03
    • Koichi TakiguchiTomohiro Shibata
    • Koichi TakiguchiTomohiro Shibata
    • G02B626
    • H04B10/503G02F3/00G02F2203/70H04B10/508
    • An optical pulse pattern generator can generate optical pulse signals with various periods and patterns. It supplies an optical pulse from an optical pulse source to a variable optical delay line circuit including cascade-connected characteristic-variable asymmetrical Mach-Zehnder interferometers via an optical combiner and splitter. The optical pulse is fed back to the optical combiner and splitter from the final stages of the cascade-connected characteristic-variable a symmetrical Mach-Zehnder interferometers via an optical exclusive OR circuit and optical amplifier. Making directional couplers with variable coupling ratio, and directional couplers with variable coupling ratio in operation can cause the final stage of the cascade-connected characteristic-variable asymmetrical Mach-Zehnder interferometer to produce a random pulse train.
    • 光脉冲图案发生器可以产生具有各种周期和图案的光脉冲信号。 它通过光学组合器和分离器将光脉冲源的光脉冲提供给包括级联连接的特征可变非对称马赫 - 曾德干涉仪的可变光学延迟线电路。 光脉冲通过光学异或电路和光放大器从级联连接的特征变量的对称马赫 - 曾德干涉仪的最后级反馈到光合并器和分路器。 制造具有可变耦合比的定向耦合器和具有可变耦合比的定向耦合器可以导致级联连接的特征变量不对称马赫 - 曾德干涉仪的最后阶段产生随机脉冲串。