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    • 2. 发明授权
    • Nitride based semiconductor light emitting device
    • 基于氮化物的半导体发光器件
    • US08759815B2
    • 2014-06-24
    • US13818572
    • 2011-09-01
    • Seong Ran JeonYoung Ho SongJae Bum KimYoung Woo KimWoo Young CheonJin Hong Kim
    • Seong Ran JeonYoung Ho SongJae Bum KimYoung Woo KimWoo Young CheonJin Hong Kim
    • H01L33/04
    • H01L33/12H01L33/04H01L33/06H01L33/14H01L33/32
    • The disclosure relates to a nitride based semiconductor light emitting device with improved luminescence efficiency by increasing a recombination rate of electrons and holes contributing to luminescence, which results from matching the spatial distribution of electron and hole wave functions. The nitride based semiconductor light emitting device according to the present invention includes an n-type nitride layer, an active layer formed on the n-type nitride layer, and a p-type nitride layer formed on the active layer. At this stage, a strain control layer, and the at least one layer has a larger energy bandgap than a quantum well layer in the active layer. The strain control layer is disposed in an area where the quantum well layer of the active layer is formed. Moreover, an energy bandgap of the strain control layer is less than that of quantum barrier of the active layer.
    • 本发明涉及通过增加电子和有助于发光的空穴的复合速率而提高发光效率的氮化物基半导体发光器件,这是通过匹配电子和空穴波函数的空间分布而得到的。 根据本发明的氮化物基半导体发光器件包括n型氮化物层,形成在n型氮化物层上的有源层和形成在有源层上的p型氮化物层。 在这个阶段,应变控制层和至少一个层在有源层中具有比量子阱层更大的能带隙。 应变控制层设置在形成有源层的量子阱层的区域中。 此外,应变控制层的能带隙小于有源层的量子势垒的能带隙。
    • 4. 发明授权
    • Apparatus and method for recovering voice packet
    • 语音包恢复装置及方法
    • US08520536B2
    • 2013-08-27
    • US11790368
    • 2007-04-25
    • Jung-Woo KuAustin KimHo-Chong ParkJae-Bum KimChul-Yong AhnPavel Martynovich
    • Jung-Woo KuAustin KimHo-Chong ParkJae-Bum KimChul-Yong AhnPavel Martynovich
    • H04L12/26
    • H04L12/66
    • An apparatus and method for recovering lost voice packets are provided, in which a packet loss detector determines whether a received packet has been lost, packet information storage stores voice information of previous voice packets and voice information of the received voice packet, a packet error corrector measures the voice information of the received voice packet, stores the measured voice information in the packet information storage, corrects the voice information when necessary, and generates a corrected voice packet, if the received voice packet is normal, and a packet loss recoverer recovers the voice information of the received voice packet using the voice information of previous voice packets stored in the packet information storage and generates a recovered voice packet, if the received voice packet has been lost.
    • 提供了一种用于恢复丢失语音分组的装置和方法,其中分组丢失检测器确定接收的分组是否已经丢失,分组信息存储存储先前语音分组的语音信息和接收的语音分组的语音信息,分组误差校正器 测量接收到的语音分组的语音信息,将测量的语音信息存储在分组信息存储器中,必要时校正语音信息,并且如果接收的语音分组正常,则生成校正的语音分组,并且分组丢失恢复器恢复 使用存储在分组信息存储器中的先前语音分组的语音信息的接收到的语音分组的语音信息,并且如果接收到的语音分组已经丢失,则生成恢复的语音分组。
    • 5. 发明申请
    • MULTI-LUMINOUS ELEMENT AND METHOD FOR MANUFACTURING SAME
    • 多元件元件及其制造方法
    • US20120319081A1
    • 2012-12-20
    • US13581399
    • 2011-03-15
    • Seong Ran JeonJae Bum KimSeung Jae Lee
    • Seong Ran JeonJae Bum KimSeung Jae Lee
    • H01L33/06H01L33/32
    • H01L33/08H01L33/06H01L33/32
    • The present invention relates to a multi-luminous element and a method for manufacturing the same. The present invention provides the multi-luminous element comprising: a buffer layer disposed on a substrate; a first type semiconductor layer disposed on the buffer layer; a first active layer which is disposed on the first type semiconductor layer and is patterned to expose a part of the first type semiconductor layer; a second active layer disposed on the first type semiconductor layer which is exposed by the first active layer; and a second type semiconductor layer disposed on the first active layer and the second active layer, the first and second active layers being repeatedly disposed in the horizontal direction, and the method for manufacturing the same.
    • 多发光元件及其制造方法技术领域本发明涉及多发光元件及其制造方法。 本发明提供了一种多发光元件,包括:设置在基板上的缓冲层; 设置在缓冲层上的第一类型半导体层; 第一有源层,其设置在所述第一类型半导体层上并被图案化以暴露所述第一类型半导体层的一部分; 设置在由所述第一有源层曝光的所述第一类型半导体层上的第二有源层; 以及设置在第一有源层和第二有源层上的第二类型半导体层,第一和第二有源层在水平方向上重复设置,及其制造方法。
    • 7. 发明授权
    • Apparatus and method for removing an echo signal in a signal transmission/reception apparatus of a communication system
    • 一种用于去除通信系统的信号发送/接收装置中的回波信号的装置和方法
    • US08121654B2
    • 2012-02-21
    • US12324506
    • 2008-11-26
    • Hwa-Sun YouJae-Bum KimHee-Won KangJung-Woo Ku
    • Hwa-Sun YouJae-Bum KimHee-Won KangJung-Woo Ku
    • H04B15/00
    • H04B3/23H04B7/15585
    • A method and apparatus for removing an echo signal in a signal transmission/reception apparatus of a communication system is provided. A signal transmission/reception apparatus estimates an input channel response using a training sequence, generates a first signal by removing the input channel response from a first reception signal, detects an echo channel impulse response using the first signal, detects an echo signal removing coefficient using the echo channel impulse response, generates a second signal in which an echo signal is removed by applying the echo signal removing coefficient to a second reception signal, and removes the second signal from a third signal, wherein the first signal is received prior to receiving the second signal and the second signal is received prior to receiving the third signal.
    • 提供了一种用于消除通信系统的信号发送/接收装置中的回波信号的方法和装置。 信号发送/接收装置使用训练序列估计输入信道响应,通过从第一接收信号中去除输入信道响应来产生第一信号,使用第一信号检测回波信道脉冲响应,使用 回波信道脉冲响应产生通过将回波信号去除系数应用于第二接收信号而去除回波信号的第二信号,并从第三信号中去除第二信号,其中在接收第一信号之前接收第一信号 第二信号,并且在接收第三信号之前接收第二信号。
    • 8. 发明授权
    • Method and apparatus for estimating/removing echo signal using channel coefficient predicting technique in multi-carrier system
    • 使用多载波系统中的信道系数预测技术来估计/去除回波信号的方法和装置
    • US08050621B2
    • 2011-11-01
    • US12391878
    • 2009-02-24
    • Jung-Woo KuJae-Bum KimHee-Won KangHwa-Sun You
    • Jung-Woo KuJae-Bum KimHee-Won KangHwa-Sun You
    • H04Q7/20
    • H04B7/15585
    • A method and an apparatus are provided for estimating and removing interference of a signal at a wireless repeater operating in a multi-carrier system. In the method, a current echo channel linear prediction coefficient, which represents a coefficient between a current train signal section and a previous train signal section, is estimated using a current echo channel coefficient estimated in the current train signal section and a previous echo channel coefficient generated in the previous train signal section. A next echo channel coefficient is estimated using the current echo channel coefficient, the previous echo channel coefficient, and the current echo channel linear prediction coefficient. An echo channel coefficient outside a train signal section is estimated using the current echo channel coefficient and the next echo channel coefficient.
    • 提供一种用于估计和去除在多载波系统中操作的无线中继器处的信号的干扰的方法和装置。 在该方法中,使用在当前列车信号部分中估计的当前回波信道系数和先前的回波信道系数来估计表示当前列车信号部分与前一列车信号部分之间的系数的当前回波信道线性预测系数 在先前的列车信号部分生成。 使用当前回波信道系数,先前的回波信道系数和当前回波信道线性预测系数来估计下一个回波信道系数。 使用当前回波信道系数和下一个回波信道系数来估计列车信号部分外的回波信道系数。
    • 9. 发明申请
    • APPARATUS AND METHOD FOR ENHANCING SPEECH INTELLIGIBILITY IN A MOBILE TERMINAL
    • 移动终端提高语音智能的装置和方法
    • US20080249772A1
    • 2008-10-09
    • US12062034
    • 2008-04-03
    • Pavel MARTYNOVICHAustin KIMJae-Bum KIMChul-Yong AHN
    • Pavel MARTYNOVICHAustin KIMJae-Bum KIMChul-Yong AHN
    • G10L15/20
    • G10L19/26G10L21/0364
    • An apparatus and a method for enhancing speech intelligibility in a mobile terminal. A complex spectrum calculator calculates complex spectra of one input frame of an input speech signal by Fourier transform, a speech level calculator calculates its instant levels, an average speech level calculator calculates an average speech level of the speech frame using the instant levels, if the input frame is a speech frame, a scaling factor calculator calculates scaling factors by comparing the average speech level with the instant levels, an HPF characteristic calculator calculates amplitude characteristics using the scaling factors, a HPF high-pass-filters the complex spectra using the amplitude characteristics, a synthesizer converts high-pass-filtered signals to time signals by inverse Fourier transform and synthesizes the time signals, and a combiner outputs an enhanced intelligibility speech signal by combining the synthesized time signal with the input frame.
    • 一种用于增强移动终端中的语音清晰度的装置和方法。 复频谱计算器通过傅里叶变换计算输入语音信号的一个输入帧的复谱,语音电平计算器计算其即时电平,平均语音电平计算器使用即时电平计算语音帧的平均语音电平,如果 输入帧是语音帧,缩放因子计算器通过将平均语音电平与即时电平进行比较来计算缩放因子,HPF特征计算器使用缩放因子计算幅度特性,HPF使用振幅来对复谱进行高通滤波 特征,合成器通过逆傅里叶变换将高通滤波信号转换成时间信号,并合成时间信号,组合器通过将合成时间信号与输入帧组合而输出增强的可懂度语音信号。