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    • 1. 发明申请
    • Apparatus and method for converting pitch delay using linear prediction in speech transcoding
    • 用于在语音转码中使用线性预测转换音调延迟的装置和方法
    • US20050015243A1
    • 2005-01-20
    • US10749779
    • 2003-12-30
    • Eung LeeHyun KimDo KimChang YooSeong SeoDal Jang
    • Eung LeeHyun KimDo KimChang YooSeong SeoDal Jang
    • G10L19/04G10L19/08G10L19/14
    • G10L19/09G10L19/18G10L25/12
    • Provided are an apparatus and method for converting a pitch delay using linear prediction in speech transcoding. A linear interpolating portion linearly interpolates a closed-loop pitch delay decoded by a selected mode vocoder (SMV) speech decoder to make the closed-loop pitch delay fit in a search section for open-loop pitch delays of G.723.1 speech encoder, to obtain a changed closed-loop pitch delay of the SMV decoder. A predicted value calculating portion calculates a predicted pitch delay using linear prediction, based on past closed-loop pitch delays of the G.723.1 speech encoder. A difference calculating portion calculates a difference between the changed closed-loop pitch delay of the SMV speech decoder and the calculated predicted pitch delay. When the calculated difference is less than the predetermined threshold value, a pitch delay determining portion determines the changed closed-loop pitch delay of the SMV speech decoder to be an open-loop pitch delay of the G.723.1 speech encoder. A pitch delay detecting portion detects a closed-loop pitch delay of the G.723.1 speech encoder using a conventional method, based on the determined open-loop pitch delay of the G.723.1 speech encoder.
    • 提供了一种用于在语音代码转换中使用线性预测来转换音调延迟的装置和方法。 线性内插部分线性内插由选择的模式声码器(SMV)语音解码器解码的闭环音调延迟,以使闭环音调延迟适合于用于G.723.1语音编码器的开环音调延迟的搜索部分, 获得SMV解码器的改变的闭环音调延迟。 基于G.723.1语音编码器的过去闭环音调延迟,预测值计算部分使用线性预测来计算预测音调延迟。 差分计算部分计算SMV语音解码器的改变的闭环音调延迟与所计算的预测音调延迟之间的差。 当计算出的差小于预定阈值时,音调延迟确定部分将SMV语音解码器的改变的闭环音调延迟确定为G.723.1语音编码器的开环音调延迟。 基于所确定的G.723.1语音编码器的开环音调延迟,音调延迟检测部分使用常规方法检测G.723.1语音编码器的闭环音调延迟。
    • 2. 发明申请
    • Transcoding apparatus and method
    • 转码装置及方法
    • US20050136900A1
    • 2005-06-23
    • US10866122
    • 2004-06-10
    • Hyun KimEung LeeDo Kim
    • Hyun KimEung LeeDo Kim
    • G10L19/00H04W88/18H04Q7/20
    • H04W88/181
    • Provided are a transcoding apparatus and method. A frame comparator compares the length of input frames of a transmitting side with the length of output frames of a receiving side. A frame deciding unit decides more than one input frame corresponding to one output frame on the basis of the comparison result and decides the type of the output frame based on the type of the corresponding input frame. A frame converter converts the format of the input frames to the format of the output frames on the basis of the decided type. Accordingly, a frame coded by a voice coder using VAD is easily transformed to the format of another voice coder.
    • 提供了一种代码转换装置和方法。 帧比较器将发送侧的输入帧的长度与接收侧的输出帧的长度进行比较。 帧决定单元基于比较结果来决定与一个输出帧对应的多个输入帧,并基于对应的输入帧的类型来决定输出帧的种类。 帧转换器基于所确定的类型将输入帧的格式转换为输出帧的格式。 因此,由使用VAD的语音编码器编码的帧容易地变换为另一语音编码器的格式。
    • 4. 发明授权
    • Fuel cell system and driving method of the same
    • 燃料电池系统及其驱动方法相同
    • US08883359B2
    • 2014-11-11
    • US12939022
    • 2010-11-03
    • Woong-Ho ChoMing-Zi HongDong-Hyun KimDong-Rak KimHyun Kim
    • Woong-Ho ChoMing-Zi HongDong-Hyun KimDong-Rak KimHyun Kim
    • H01M8/06H01M8/10
    • H01M8/0631H01M2008/1095Y02E60/50
    • A method of driving a fuel cell system is disclosed. The method of driving the fuel cell system may include supplying water to a reformer by pressing a pump pipe to pressing members to move the pressing members in a first direction, stopping power generation including stopping a supply of fuel and oxidant to the reformer, and discharging water in the reformer by moving the pressing members in a second direction opposite to the first direction while pressing the pump pipe with the pressing members. A fuel cell system is also disclosed. The fuel cell system includes a reformer, a fuel cell stack and a water transferring pump. The water transferring pump includes pressing members and a pump pipe. The pump pipe is in fluid communication with a water transferring pipe.
    • 公开了一种驱动燃料电池系统的方法。 驱动燃料电池系统的方法可以包括通过将泵管按压到按压部件上来向重整器供给水,以沿第一方向移动按压部件,停止发电,包括停止向重整器供应燃料和氧化剂,并且排出 通过在与所述按压部件一起按压所述泵管的同时沿与所述第一方向相反的第二方向移动所述按压部件而将所述重整器中的水排出。 还公开了一种燃料电池系统。 燃料电池系统包括重整器,燃料电池堆和输水泵。 输水泵包括按压构件和泵管。 泵管与输水管道流体连通。
    • 5. 发明授权
    • Fuel cell system having a reformer
    • 具有重整器的燃料电池系统
    • US08785069B2
    • 2014-07-22
    • US12971437
    • 2010-12-17
    • Hyun KimDong-Rak KimDong-Hyun KimMing-Zi HongWoong-Ho Cho
    • Hyun KimDong-Rak KimDong-Hyun KimMing-Zi HongWoong-Ho Cho
    • H01M8/06
    • C01B3/384C01B3/323C01B2203/0233C01B2203/0283C01B2203/044C01B2203/0445C01B2203/047C01B2203/066C01B2203/0811C01B2203/1223C01B2203/1235H01M8/04007H01M8/04201H01M8/04253H01M8/0612H01M8/0668
    • A fuel cell system includes a fuel cell stack, an oxidizer supply unit, a reformer, a fuel tank, and a water tank. The reformer generates a hydrogen-containing reformed gas reformed from hydrocarbon-based fuel and supplies it to the fuel cell stack. The fuel tank supplies the hydrocarbon-based fuel to the reformer. The water tank supplies water to the reformer. The reformer includes a reforming unit configured to have a reforming reaction generated therein, a combustion unit configured to supply heat energy to the reforming unit, and a carbon monoxide reduction unit configured to reduce the concentration of carbon monoxide in a reformed gas discharged from the reforming unit. A combustion gas pipe is connected to the combustion unit. A reformed gas pipe is disposed between the reforming unit and the carbon monoxide reduction unit. At least one of the combustion gas pipe and the reformed gas pipe is configured to pass through the inside of the water tank or to raise a temperature of the water tank through contact with the water tank, thereby preventing the freezing of the water tank.
    • 燃料电池系统包括燃料电池堆,氧化剂供应单元,重整器,燃料箱和水箱。 重整器产生从烃类燃料重整而成的含氢重整气体,并将其供给到燃料电池堆。 燃料箱向重整器供应烃类燃料。 水箱向改性机供水。 重整器包括:重整单元,其被配置为具有在其中产生的重整反应;燃烧单元,被配置为向重整单元供应热能;以及一氧化碳还原单元,被配置为减少从重整器排出的重整气体中的一氧化碳浓度 单元。 燃烧气体管道连接到燃烧单元。 重整气体管道设置在重整单元和一氧化碳减少单元之间。 燃烧气体管道和重整气体管道中的至少一个构造成通过水箱的内部,或者通过与水箱接触来提高水箱的温度,从而防止水箱的冻结。
    • 10. 发明申请
    • FUEL CELL SYSTEM HAVING A REFORMER
    • 具有改造器的燃油电池系统
    • US20110262820A1
    • 2011-10-27
    • US12971437
    • 2010-12-17
    • Hyun KimDong-Rak KimDong-Hyun KimMing-Zi HongWoong-Ho Cho
    • Hyun KimDong-Rak KimDong-Hyun KimMing-Zi HongWoong-Ho Cho
    • H01M8/06
    • C01B3/384C01B3/323C01B2203/0233C01B2203/0283C01B2203/044C01B2203/0445C01B2203/047C01B2203/066C01B2203/0811C01B2203/1223C01B2203/1235H01M8/04007H01M8/04201H01M8/04253H01M8/0612H01M8/0668
    • A fuel cell system includes a fuel cell stack, an oxidizer supply unit, a reformer, a fuel tank, and a water tank. The reformer generates a hydrogen-containing reformed gas reformed from hydrocarbon-based fuel and supplies it to the fuel cell stack. The fuel tank supplies the hydrocarbon-based fuel to the reformer. The water tank supplies water to the reformer. The reformer includes a reforming unit configured to have a reforming reaction generated therein, a combustion unit configured to supply heat energy to the reforming unit, and a carbon monoxide reduction unit configured to reduce the concentration of carbon monoxide in a reformed gas discharged from the reforming unit. A combustion gas pipe is connected to the combustion unit. A reformed gas pipe is disposed between the reforming unit and the carbon monoxide reduction unit. At least one of the combustion gas pipe and the reformed gas pipe is configured to pass through the inside of the water tank or to raise a temperature of the water tank through contact with the water tank, thereby preventing the freezing of the water tank.
    • 燃料电池系统包括燃料电池堆,氧化剂供应单元,重整器,燃料箱和水箱。 重整器产生从烃类燃料重整而成的含氢重整气体,并将其供给到燃料电池堆。 燃料箱向重整器供应烃类燃料。 水箱向改性机供水。 重整器包括:重整单元,其被配置为具有在其中产生的重整反应;燃烧单元,被配置为向重整单元供应热能;以及一氧化碳还原单元,被配置为减少从重整器排出的重整气体中的一氧化碳浓度 单元。 燃烧气体管道连接到燃烧单元。 重整气体管道设置在重整单元和一氧化碳减少单元之间。 燃烧气体管道和重整气体管道中的至少一个构造成通过水箱的内部,或者通过与水箱接触来提高水箱的温度,从而防止水箱的冻结。