公开(公告)号：US07778824B2

公开(公告)日：2010-08-17

申请号：US12330265

申请日：2008-12-08

申请人： Yunneng Mo ,  Yulong Li ,  Fanrong Tang

发明人： Yunneng Mo ,  Yulong Li ,  Fanrong Tang

IPC分类号： G10L11/04

CPC分类号： G10L19/005 ,  G10L19/09 ,  G10L19/24

摘要： A device and a method for frame lost concealment are disclosed. A pitch period of a current lost frame is obtained on the basis of a pitch period of the last good frame before the current lost frame. An excitation signal of the current lost frame is recovered on the basis of the pitch period of the current lost frame and an excitation signal of the last good frame before the lost frame. Thereby, the hearing contrast of a receiver is reduced, and the quality of speech is improved. Further, in the present invention, a pitch period of continual lost frames is adjusted on the basis of the change trend of the pitch period of the last good frame before the lost frame. Therefore, a buzz effect produced by the continual lost frames is avoided, and the quality of speech is further improved. In addition, by attenuating the energy of the excitation signal obtained from the continual lost frames, the device and method accord with the hearing physiological characteristics of human and reduce the hearing contrast of the receiver.

摘要翻译： 公开了一种用于帧丢失隐藏的装置和方法。 基于当前丢失帧之前的最后一帧的音调周期来获得当前丢帧的音调周期。 基于当前丢失帧的音调周期和丢失帧之前的最后一帧的激励信号，恢复当前丢帧的激励信号。 从而，减少了接收机的听觉对比度，提高了语音质量。 此外，在本发明中，基于丢失帧之前的最后一帧的音调周期的变化趋势来调整连续丢失帧的音调周期。 因此，避免了连续失帧产生的蜂鸣效应，进一步提高了语音质量。 另外，通过衰减从连续丢失帧获得的激励信号的能量，该装置和方法符合人的听觉生理特征并降低接收机的听觉对比度。

公开(公告)号：US6063721A

公开(公告)日：2000-05-16

申请号：US73586

申请日：1998-05-06

申请人： Yihou Hu ,  Baolin Luo ,  Kuiyuan Sun ,  Qiye Yang ,  Mingli Gong ,  Jiyu Hu ,  Guoping Fang ,  Yulong Li

发明人： Yihou Hu ,  Baolin Luo ,  Kuiyuan Sun ,  Qiye Yang ,  Mingli Gong ,  Jiyu Hu ,  Guoping Fang ,  Yulong Li

IPC分类号： B01J20/34 ,  B01J38/10 ,  B01J38/12 ,  C10G11/02 ,  C10G11/05

CPC分类号： B01J29/90 ,  B01J38/04 ,  B01J38/10 ,  C10G11/182 ,  C22B23/026 ,  C22B7/001 ,  C10G2300/1033 ,  C10G2300/107 ,  Y02P10/214 ,  Y02P10/224

摘要： This invention provides a novel dry chemical process for removing by carbonylation the metals harmful to the catalyst activity from the catalyst for the residuum and/or heavy oil catalytic cracking, comprising: contacting the catalyst contaminated by the poisonous metals with an activation gas and a reduction gas in a reactor for activation and reduction; and then in a carbonylation reactor, contacting the catalyst treated by activating and reducing with CO gas to make the metals on the catalyst carbonylated to form gaseous metal carbonyls which are then transferred and separated from the solid catalyst, thereby the catalyst activity is restored. The process of this invention is simple in the technology, moderate in the operation conditions, and it will not cause secondary pollution to environment for there is no addition and discharge of any liquid.

摘要翻译： 本发明提供了一种新颖的干法化学方法，用于通过羰基化从残留物和/或重油催化裂化的催化剂中除去对催化剂活性有害的金属，包括：将被有毒金属污染的催化剂与活化气体接触并进行还原 用于活化和还原的反应器中的气体; 然后在羰基化反应器中，将通过活化和还原处理的催化剂与CO气体接触，使催化剂上的金属羰基化形成气态金属羰基，然后将其从固体催化剂转移和分离，从而恢复催化剂活性。 本发明方法工艺简单，操作条件适中，不会对任何液体进行添加和排放，不会对环境造成二次污染。

公开(公告)号：US20070232481A1

公开(公告)日：2007-10-04

申请号：US11716540

申请日：2007-03-09

申请人： Baojun Zhang ,  Tao Jiang ,  Jianzhong Li ,  Lihua Xing ,  Yingnan Ning ,  Shukun Sun ,  Dongting Kuang ,  Yongcheng Sun ,  Yunguang Han ,  Qian Chen ,  Hongxia Chen ,  Deshun Zhang ,  Yulong Li ,  Yongjun Zhang ,  Huimin Yuan ,  Sihan Wang ,  Guizhi Wang ,  Jingyuan Zhang

发明人： Baojun Zhang ,  Tao Jiang ,  Jianzhong Li ,  Lihua Xing ,  Yingnan Ning ,  Shukun Sun ,  Dongting Kuang ,  Yongcheng Sun ,  Yunguang Han ,  Qian Chen ,  Hongxia Chen ,  Deshun Zhang ,  Yulong Li ,  Yongjun Zhang ,  Huimin Yuan ,  Sihan Wang ,  Guizhi Wang ,  Jingyuan Zhang

IPC分类号： C08F4/00

CPC分类号： C07C2/32 ,  B01J31/0201 ,  B01J31/0204 ,  B01J31/0231 ,  B01J31/188 ,  B01J2231/20 ,  B01J2531/62 ,  C07C2531/14 ,  C07C2531/22 ,  C08F110/02 ,  Y02P20/52 ,  C08F2500/02

摘要： The present invention relates to a catalyst composition for ethylene oligomerization and the use thereof. Such catalyst composition includes chromium compound, ligand containing P and N, activator and accelerator; wherein the chromium compound is selected from the group consisting of acetyl acetone chromium, THF-chromium chloride and/or Cr(2-ethylhecanoate)3; general formula of the ligand containing P and N is shown as: in which R1, R2, R3 and R4 are phenyl, benzyl, or naphthyl. R5 is isopropyl, butyl, cyclopropyl, cyclopentyl, cyclohexyl or fluorenyl; the activatior is methyl aluminoxane, ethyl aluminoxane, propyl aluminoxane and/or butyl aluminoxane; general formula of the accelerator is X1R6X2, in which X1 and X2 are F, Cl, Br, I or alkoxyl, R6 is alkyl or aryl; the molar ratio of a, b, c and d is 1:0.5˜10:50˜3000:0.5˜10. After mixing the four components mentioned previously under nitrogen atmosphere for 10 minutes, they are incorporated to the reactor, or these four components are incorporated directly into the reactor. Then ethylene is introduced for oligomerization. Such catalyst can be used in producing 1-octene through ethylene oligomerization. It is advantageous in high catalysing activity, high 1-octene selectivity, etc. The catalytic activity is more than 1.0×106 g product·mol−1 Cr ·h−1, the fraction of C8 linear α-olefin is more than 70% by mass.

摘要翻译： 本发明涉及一种用于乙烯低聚的催化剂组合物及其用途。 这种催化剂组合物包括铬化合物，含有P和N的配体，活化剂和促进剂; 其中所述铬化合物选自乙酰丙酮铬，THF-氯化铬和/或Cr（2-乙基庚酸酯）3。 含有P和N的配体的通式示于：其中R 1，R 2，R 3和R 4 苯基，苄基或萘基。 R 5是异丙基，丁基，环丙基，环戊基，环己基或芴基; 活性物质是甲基铝氧烷，乙基铝氧烷，丙基铝氧烷和/或丁基铝氧烷; 加速剂的通式是X 1，X 6，X 2，其中X 1和X 2， 2是F，Cl，Br，I或烷氧基，R 6是烷基或芳基; a，b，c和d的摩尔比为1：0.5〜10：50〜3000：0.5〜10。 在氮气氛下将上述四种组分混合10分钟后，将它们并入反应器中，或将这四种组分直接并入反应器中。 然后引入乙烯用于低聚。 这种催化剂可用于通过乙烯低聚制备1-辛烯。 在高催化活性，高1-辛烯选择性等方面是有利的。催化活性大于1.0×10 -6 g产物。 > -1，C 8直链α-烯烃的分数大于70质量％。

公开(公告)号：US08571204B2

公开(公告)日：2013-10-29

申请号：US13555502

申请日：2012-07-23

申请人： Jie Li ,  Junbin Liang ,  Yulong Li ,  Jingfan Qin

发明人： Jie Li ,  Junbin Liang ,  Yulong Li ,  Jingfan Qin

IPC分类号： H04M9/08

CPC分类号： H04M9/082

摘要： The present invention relates to call voice signal processing, and particularly, to apparatus and method for echo control in parameter domain. The apparatus includes: an echo detection module configured to extract parameter domain characteristic parameters of a far-end output signal and a near-end input signal, respectively, through parameter domain decoding, and detect whether a near-end input signal frame is an echo frame according to the parameter domain characteristic parameters; and a transition module configured to re-quantize the fixed codebook gain, the adaptive codebook gain and an LSF prediction error in the near-end input signal frame when the echo detection module detects the near-end input signal frame as a non-echo frame, and replace the original fixed codebook gain, the original adaptive codebook gain and the original LSF in the near-end input signal frame.

摘要翻译： 呼叫语音信号处理技术领域本发明涉及呼叫语音信号处理，特别涉及参数域中回波控制的装置和方法。 该装置包括：回波检测模块，被配置为分别通过参数域解码提取远端输出信号和近端输入信号的参数域特性参数，并检测近端输入信号帧是否为回波 帧根据参数域特征参数; 以及转移模块，被配置为当所述回波检测模块将所述近端输入信号帧检测为非回波帧时，对所述近端输入信号帧中的固定码本增益，所述自适应码本增益和LSF预测误差进行重新量化 并替换原始固定码本增益，原始自适应码本增益和近端输入信号帧中的原始LSF。

公开(公告)号：US20090089050A1

公开(公告)日：2009-04-02

申请号：US12330265

申请日：2008-12-08

申请人： Yunneng Mo ,  Yulong Li ,  Fanrong Tang

发明人： Yunneng Mo ,  Yulong Li ,  Fanrong Tang

IPC分类号： G10L11/04

CPC分类号： G10L19/005 ,  G10L19/09 ,  G10L19/24

摘要： A device and a method for frame lost concealment are disclosed. A pitch period of a current lost frame is obtained on the basis of a pitch period of the last good frame before the current lost frame. An excitation signal of the current lost frame is recovered on the basis of the pitch period of the current lost frame and an excitation signal of the last good frame before the lost frame. Thereby, the hearing contrast of a receiver is reduced, and the quality of speech is improved. Further, in the present invention, a pitch period of continual lost frames is adjusted on the basis of the change trend of the pitch period of the last good frame before the lost frame. Therefore, a buzz effect produced by the continual lost frames is avoided, and the quality of speech is further improved. In addition, by attenuating the energy of the excitation signal obtained from the continual lost frames, the device and method accord with the hearing physiological characteristics of human and reduce the hearing contrast of the receiver.

摘要翻译： 公开了一种用于帧丢失隐藏的装置和方法。 基于当前丢失帧之前的最后一帧的音调周期来获得当前丢帧的音调周期。 基于当前丢失帧的音调周期和丢失帧之前的最后一帧的激励信号，恢复当前丢帧的激励信号。 从而，减少了接收机的听觉对比度，提高了语音质量。 此外，在本发明中，基于丢失帧之前的最后一帧的音调周期的变化趋势来调整连续丢失帧的音调周期。 因此，避免了连续失帧产生的蜂鸣效应，进一步提高了语音质量。 另外，通过衰减从连续丢失帧获得的激励信号的能量，该装置和方法符合人的听觉生理特征并降低接收机的听觉对比度。

公开(公告)号：US20130028409A1

公开(公告)日：2013-01-31

申请号：US13555502

申请日：2012-07-23

申请人： Jie LI ,  Junbin LIANG ,  Yulong LI ,  Jingfan QIN

发明人： Jie LI ,  Junbin LIANG ,  Yulong LI ,  Jingfan QIN

IPC分类号： H04M9/08

CPC分类号： H04M9/082

摘要： The present invention relates to call voice signal processing, and particularly, to apparatus and method for echo control in parameter domain. The apparatus includes: an echo detection module configured to extract parameter domain characteristic parameters of a far-end output signal and a near-end input signal, respectively, through parameter domain decoding, and detect whether a near-end input signal frame is an echo frame according to the parameter domain characteristic parameters; and a transition module configured to re-quantize the fixed codebook gain, the adaptive codebook gain and an LSF prediction error in the near-end input signal frame when the echo detection module detects the near-end input signal frame as a non-echo frame, and replace the original fixed codebook gain, the original adaptive codebook gain and the original LSF in the near-end input signal frame.

摘要翻译： 呼叫语音信号处理技术领域本发明涉及呼叫语音信号处理，特别涉及参数域中回波控制的装置和方法。 该装置包括：回波检测模块，被配置为分别通过参数域解码提取远端输出信号和近端输入信号的参数域特性参数，并检测近端输入信号帧是否为回波 帧根据参数域特征参数; 以及转换模块，被配置为当所述回波检测模块将所述近端输入信号帧检测为非回波帧时，对所述近端输入信号帧中的固定码本增益，所述自适应码本增益和LSF预测误差进行重新量化 并替换原始固定码本增益，原始自适应码本增益和近端输入信号帧中的原始LSF。

公开(公告)号：US07786336B2

公开(公告)日：2010-08-31

申请号：US11716540

申请日：2007-03-09

申请人： Baojun Zhang ,  Tao Jiang ,  Jianzhong Li ,  Lihua Xing ,  Yingnan Ning ,  Shukun Sun ,  Dongting Kuang ,  Yongcheng Sun ,  Yunguang Han ,  Qian Chen ,  Hongxia Chen ,  Deshun Zhang ,  Yulong Li ,  Yongjun Zhang ,  Huimin Yuan ,  Sihan Wang ,  Guizhi Wang ,  Jingyuan Zhang

发明人： Baojun Zhang ,  Tao Jiang ,  Jianzhong Li ,  Lihua Xing ,  Yingnan Ning ,  Shukun Sun ,  Dongting Kuang ,  Yongcheng Sun ,  Yunguang Han ,  Qian Chen ,  Hongxia Chen ,  Deshun Zhang ,  Yulong Li ,  Yongjun Zhang ,  Huimin Yuan ,  Sihan Wang ,  Guizhi Wang ,  Jingyuan Zhang

IPC分类号： C07C2/26 ,  C07C2/32 ,  B01J31/14 ,  B01J31/18 ,  B01J31/22

CPC分类号： C07C2/32 ,  B01J31/0201 ,  B01J31/0204 ,  B01J31/0231 ,  B01J31/188 ,  B01J2231/20 ,  B01J2531/62 ,  C07C2531/14 ,  C07C2531/22 ,  C08F110/02 ,  Y02P20/52 ,  C08F2500/02

摘要： The present invention relates to a catalyst composition for ethylene oligomerization and the use thereof. Such catalyst composition includes chromium compound, ligand containing P and N, activator and accelerator; wherein the chromium compound is selected from the group consisting of acetyl acetone chromium, THF-chromium chloride and Cr(2-ethylhecanoate)3; general formula of the ligand containing P and N is shown as: in which R1, R2, R3 and R4 are phenyl, benzyl, or naphthyl. R5 is isopropyl, butyl, cyclopropyl, cyclopentyl, cyclohexyl or fluorenyl; the activatior is methyl aluminoxane, ethyl aluminoxane, propyl aluminoxane and/or butyl aluminoxane; the accelerator is selected from the group consisting of 1,1,2,2,-tetrachloroethane, 1,1,2,2-tetrabromoethane, 1,1,2,2-tetrafluoroethane, and compounds having a formula of X1R6X2, in which X1 and X2 are F, Cl, Br, I or alkoxyl, R6 is alkylene or arylene group; the molar ratio of chromium compound, ligand containing P and N, activator and accelerator is 1:0.5˜10:50˜3000:0.5˜10. After mixing the four components mentioned previously under nitrogen atmosphere for 10 minutes, they are incorporated to the reactor, or these four components are incorporated directly into the reactor. Then ethylene is introduced for oligomerization. Such catalyst can be used in producing 1-octene through ethylene oligomerization. It is advantageous in high catalysing activity, high 1-octene selectivity, etc. The catalytic activity is more than 1.0×106 g product·ma−1 Cr·h−1, the fraction of C8 linear α-olefin is more than 70% by mass.

摘要翻译： 本发明涉及一种用于乙烯低聚的催化剂组合物及其用途。 这种催化剂组合物包括铬化合物，含有P和N的配体，活化剂和促进剂; 其中铬化合物选自乙酰丙酮铬，THF-氯化铬和Cr（2-乙基庚酸酯）3; 含有P和N的配体的通式为：其中R 1，R 2，R 3和R 4为苯基，苄基或萘基。 R5是异丙基，丁基，环丙基，环戊基，环己基或芴基; 活性物质是甲基铝氧烷，乙基铝氧烷，丙基铝氧烷和/或丁基铝氧烷; 促进剂选自1,1,2,2-四氯乙烷，1,1,2,2-四溴乙烷，1,1,2,2-四氟乙烷和具有式X1R6X2的化合物，其中 X 1和X 2是F，Cl，Br，I或烷氧基，R 6是亚烷基或亚芳基; 铬化合物，含P和N的配体，活化剂和促进剂的摩尔比为1:0.5〜10:50〜3000:0.5〜10。 在氮气氛下将上述四种组分混合10分钟后，将它们并入反应器中，或将这四种组分直接并入反应器中。 然后引入乙烯用于低聚。 这种催化剂可用于通过乙烯低聚制备1-辛烯。 高催化活性，1-辛烯选择性高等优点。催化活性大于1.0×106 g产物·ma-1 Cr·h-1，C8线性α-烯烃的分数大于70％ 的质量。