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    • 2. 发明授权
    • Semiconductor light emitting device and method for manufacturing the same
    • 半导体发光器件及其制造方法
    • US08410498B2
    • 2013-04-02
    • US12779246
    • 2010-05-13
    • Wataru TamuraChiharu Sasaki
    • Wataru TamuraChiharu Sasaki
    • H01L33/00
    • H01L33/40H01L33/14H01L33/30
    • A semiconductor light emitting device includes a first cladding layer, a second cladding layer, and an active layer formed between the first and second cladding layers. A diffusion control layer includes an intermediate layer and a first transparent conductive layer provided on the second cladding layer in this order. The semiconductor light emitting device further includes a second transparent conductive layer having an impurity in a concentration lower than an impurity concentration of the diffusion control layer, and a third transparent conductive layer having an impurity in a concentration higher than the impurity concentration of the second transparent conductive layer. The boundary between the intermediate layer and the first transparent conductive layer is a lattice mismatch interface.
    • 半导体发光器件包括第一覆层,第二覆层和形成在第一和第二覆层之间的有源层。 扩散控制层依次包括设置在第二覆层上的中间层和第一透明导电层。 半导体发光器件还包括具有浓度低于扩散控制层的杂质浓度的杂质的第二透明导电层和具有浓度高于第二透明体的杂质浓度的杂质的第三透明导电层 导电层。 中间层和第一透明导电层之间的边界是晶格失配界面。
    • 8. 发明授权
    • Circuit and method for compensating for nonlinear distortion of input
signal
    • 补偿输入信号非线性失真的电路及​​方法
    • US5854811A
    • 1998-12-29
    • US552377
    • 1995-11-03
    • Chiharu Sasaki
    • Chiharu Sasaki
    • H03F1/32H04B1/12H04K1/02
    • H04B1/123
    • A distortion compensating circuit comprises a frequency control section, a filtering section and an eliminating section. Major frequencies are detected from an input signal including major signals having the major frequencies by a major frequency detector performing spectrum analysis of the input signal. Receiving the major frequencies, the frequency control section calculates distortion frequencies from the major frequencies based on predetermined formulae representing the nonlinear distortion. The predetermined formulae are stored in advance. The frequency control section generates frequency control signals indicating the distortion frequencies. After the input signal is divided into a first signal and a second signal, the filtering section extracts frequency components having the distortion frequencies from the first signal in response to the frequency control signals. The frequency components are eliminated from the second signal by combining the phase-reversed frequency component with the second signal by the eliminating section.
    • 失真补偿电路包括频率控制部,滤波部和消除部。 从包括主频率的主要信号的输入信号中,通过主频率检测器执行输入信号的频谱分析来检测主频率。 接收主频率,频率控制部分基于表示非线性失真的规定公式计算主频的失真频率。 预先存储预定公式。 频率控制部分产生指示失真频率的频率控制信号。 在输入信号被分成第一信号和第二信号之后,滤波部分响应于频率控制信号从第一信号中提取具有失真频率的频率分量。 通过将消除部分的相位反转频率分量与第二信号组合,从第二信号中消除频率分量。