公开(公告)号：US08117029B2

公开(公告)日：2012-02-14

申请号：US11928557

申请日：2007-10-30

申请人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Ki-Jong Koo ,  Do Young Kim ,  Hae Won Jung

发明人： Dae-Ho Kim ,  Tae-Gyu Kang ,  Ki-Jong Koo ,  Do Young Kim ,  Hae Won Jung

IPC分类号： G10L21/00

CPC分类号： G10L25/69 ,  G10L19/18

摘要： Provided is a transmission apparatus for matching sound quality measurement sections of a variable bandwidth multi-codec. The apparatus includes a measurement section setting unit setting a measurement section, which is to be measured for sound quality, in units of time; a first conversion unit converting the measurement section into a measurement section in units of samples; and an information synthesis unit synthesizing information regarding the measurement section in units of samples with a digital original sound and outputting the synthesis result. In addition, provided is a method of matching a measurement section of a reference sound, based on which the end-to-end sound quality measurement of the variable bandwidth multi-codec is performed, and a measurement section of a sound produced by the variable bandwidth multi-codec in a real-time Internet multimedia service. Therefore, distortion of measurement results due to un-matching measurement sections can be reduced.

摘要翻译： 提供了一种用于匹配可变带宽多编解码器的音质测量部分的发送装置。 该装置包括以时间为单位设置要测量声音质量的测量部分的测量部分设置单元; 第一转换单元，以样本为单位将测量部转换为测量部; 以及信息合成单元，以具有数字原始声音的样本为单位合成关于测量部分的信息，并输出合成结果。 此外，提供了一种将参考声音的测量部分与可变带宽多编解码器的端对端音质测量进行匹配的方法以及由变量产生的声音的测量部分 带宽多编解码器在实时互联网多媒体服务。 因此，可以减少由于不匹配的测量部分引起的测量结果的失真。

公开(公告)号：US07986634B2

公开(公告)日：2011-07-26

申请号：US11857539

申请日：2007-09-19

申请人： Tae-Gyu Kang ,  Ki-Jong Koo ,  Dae-Ho Kim ,  Do Young Kim ,  Hae Won Jung

发明人： Tae-Gyu Kang ,  Ki-Jong Koo ,  Dae-Ho Kim ,  Do Young Kim ,  Hae Won Jung

IPC分类号： H04L12/26

CPC分类号： G10L25/69 ,  G10L19/24

摘要： Provided are a method and apparatus for measuring sound quality in a variable band multi-codec. The sound quality measurement apparatus includes: a recording file receiving/generating unit receiving a first recording file in which a natural sound is recorded, and a second recording file obtained by converting the natural sound into digital data using the variable band multi-codec, receiving information obtained by encoding the natural sound using the variable band multi-codec, in the format of a Real Time Protocol (RTP) packet, unpacking the RTP packet, decoding the RTP packet using the variable band multi-codec, and generating a third recording file; a Mean Opinion Score (MOS) value calculating unit repeatedly selecting a file from among the first recording file, the second recording file, and the third recording file, or selecting two files from among the first recording file, the second recording file, and the third recording file, and calculating a MOS value by obtaining a difference between the selected results; and a MOS value comparison unit comparing a plurality of MOS values generated by the MOS value calculating unit, with each other, and detecting a cause of sound quality deterioration.

摘要翻译： 提供了一种用于测量可变频带多编解码器中的声音质量的方法和装置。 声音测量装置包括：记录文件接收/生​​成单元，接收其中记录有自然声音的第一记录文件;以及第二记录文件，其通过使用可变频带多编解码器将自然声音转换为数字数据而获得，第二记录文件接收 使用可变频带多编解码器以实时协议（RTP）分组的格式编码自然声音获得的信息，解包RTP分组，使用可变频带多编解码器解码RTP分组，以及生成第三记录 文件; 平均意见得分（MOS）值计算单元，重复从第一记录文件，第二记录文件和第三记录文件中选择文件，或者从第一记录文件，第二记录文件和第二记录文件中选择两个文件 第三记录文件，并且通过获得所选择的结果之间的差来计算MOS值; 以及MOS值比较单元，将由MOS值计算单元生成的多个MOS值彼此进行比较，并且检测出音质劣化的原因。

公开(公告)号：US20100266094A1

公开(公告)日：2010-10-21

申请号：US12559059

申请日：2009-09-14

申请人： Hyung-Kyu Kim ,  Jong-Hun Kim ,  Dae-Ho Kim ,  Kun-Woo Song ,  Kyung-Ho Yoon ,  Young-Ho Lee ,  Jae-Yong Kim ,  Kang-Hee Lee

发明人： Hyung-Kyu Kim ,  Jong-Hun Kim ,  Dae-Ho Kim ,  Kun-Woo Song ,  Kyung-Ho Yoon ,  Young-Ho Lee ,  Jae-Yong Kim ,  Kang-Hee Lee

IPC分类号： G21C3/16 ,  C21D1/40

CPC分类号： G21C3/02 ,  G21C3/10 ,  G21C21/02 ,  Y02E30/40

摘要： A dual-cooled nuclear fuel rod and a method of manufacturing the same are provided. The nuclear fuel rod includes an outer cladding tube having a circular cross section, an inner cladding tube having an outer diameter smaller than an inner diameter of the outer cladding tube, and a length longer than the outer cladding tube, and located in parallel in the outer cladding tube, a pellet charged in a space between the outer and inner cladding tubes and generating energy by nuclear fission, and first and second end plugs coupling opposite ends of the outer cladding tube to stepped outer joints formed on outer circumferences of first ends thereof and coupling opposite ends of the inner cladding tube to stepped inner joints formed on inner circumferences of the first ends thereof.

摘要翻译： 提供了双冷核燃料棒及其制造方法。 核燃料棒包括具有圆形横截面的外包层管，外包层的外径小于外包层管的内径，长度比外包层管长，并且平行于 外包层管，填充在外包层管和内包壳管之间的空间中并通过核裂变产生能量的颗粒，以及将外包层管的相对端连接到形成在其第一端的外周上的阶梯式外接头的第一和第二端塞 并且将内包层管的相对端连接到形成在其第一端的内周上的阶梯式内接头。

公开(公告)号：US20100019809A1

公开(公告)日：2010-01-28

申请号：US12509013

申请日：2009-07-24

申请人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dae-Ho Kim ,  Min-Ho Jung

发明人： Jong-Tae Hwang ,  Moon-Sang Jung ,  Jin-Sung Kim ,  Dae-Ho Kim ,  Min-Ho Jung

IPC分类号： H03B28/00

CPC分类号： H02M1/4208 ,  Y02B70/126

摘要： Disclosed are a switch controller, a switch control method, and a converter based thereon. The switch controller generates an input sensing voltage corresponding to the input voltage of the converter, and compares the input sensing voltage with a predetermined first reference value. The switch controller generates a zero cross detection signal with a first level or a second level depending upon the comparison result, and generates a reference clock signal varying in frequency in accordance with one cycle of the zero cross detection signal. The switch controller generates digital signals by using the reference clock signal and the zero cross detection signal. The digital signals synchronize with the zero cross detection signal, and increase in accordance with the reference clock signal during a half of one cycle of the zero cross detection signal, while decreasing in accordance with the reference clock signal during the other half cycle of the zero cross detection signal. The switch controller generates a reference signal with a voltage level corresponding to the digital signal.

摘要翻译： 公开了一种开关控制器，开关控制方法和基于其的转换器。 开关控制器产生与转换器的输入电压相对应的输入感测电压，并将输入感测电压与预定的第一参考值进行比较。 开关控制器根据比较结果产生具有第一电平或第二电平的零交叉检测信号，并且根据过零检测信号的一个周期产生频率变化的参考时钟信号。 开关控制器通过使用参考时钟信号和过零检测信号来产生数字信号。 数字信号与零交叉检测信号同步，并且在零交叉检测信号的一个周期的一半期间根据参考时钟信号增加，而在零的另一半周期期间根据参考时钟信号减小 交叉检测信号。 开关控制器产生具有与数字信号对应的电压电平的参考信号。