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1. 发明授权

US09037953B2 Multi-bit error correction method and apparatus based on a BCH code and memory system 有权
标题翻译：基于BCH码和存储器系统的多位纠错方法和装置
公开(公告)号：US09037953B2
公开(公告)日：2015-05-19
申请号：US13588700
申请日：2012-08-17
申请人： Yufei Li , Yong Lu , Ying Wang , Hao Yang
发明人： Yufei Li , Yong Lu , Ying Wang , Hao Yang
IPC分类号： H03M13/00 , H03M13/15 , H03M13/17 , H03M13/37 , G11C29/04
CPC分类号： H03M13/1575 , G06F11/10 , G11C2029/0411 , H03M13/152 , H03M13/1525 , H03M13/1565 , H03M13/17 , H03M13/3746
摘要： Exemplary embodiments for providing multi-bit error correction based on a BCH code are provided. In one such embodiment, the following operations are repeatedly performed, including shifting each bit of the BCH code rightward by 1 bit while filling the bit vacated due to the rightward shifting in the BCH code with 0, calculating syndrome values corresponding to the shifting of the BCH code, and determining a first error number in the BCH code under the shifting based on the syndrome values corresponding to the shifting of the BCH code. In the case where the first error number is not equal to 0, modified syndrome values are calculated corresponding to the shifting of the BCH code. The modified syndrome values are those corresponding to the case that the current rightmost bit of the BCH code under the shifting is changed to the inverse value. Additional operations are performed as described herein.
摘要翻译：提供了用于基于BCH码提供多位纠错的示例性实施例。在一个这样的实施例中，重复执行以下操作，包括将BCH码的每一位向右移位1位，同时填充由于BCH码中的向右移位而退出的位0，计算对应于 BCH码，并且基于与所述BCH码的移位相对应的校正子值，在所述移位下确定所述BCH码中的第一错误号。在第一错误号不等于0的情况下，对应于BCH码的移位来计算修正的综合征值。修正后的综合征值是对应于移位处的BCH码的当前最右边位置变为反向值的情况。如本文所述执行附加操作。

2. 发明授权

US08402352B2 Multi-bit error correction method and apparatus based on a BCH code and memory system 失效
公开(公告)号：US08402352B2
公开(公告)日：2013-03-19
申请号：US12704231
申请日：2010-02-11
申请人： Yufei Li , Yong Lu , Ying Wang , Hao Yang
发明人： Yufei Li , Yong Lu , Ying Wang , Hao Yang
IPC分类号： H03M13/00
CPC分类号： H03M13/1575 , G06F11/10 , G11C2029/0411 , H03M13/152 , H03M13/1525 , H03M13/1565 , H03M13/17 , H03M13/3746
摘要： Exemplary embodiments for providing multi-bit error correction based on a BCH code are provided. In one such embodiment, the following operations are repeatedly performed, including shifting each bit of the BCH code rightward by 1 bit while filling the bit vacated due to the rightward shifting in the BCH code with 0, calculating syndrome values corresponding to the shifting of the BCH code, and determining a first error number in the BCH code under the shifting based on the syndrome values corresponding to the shifting of the BCH code. In the case where the first error number is not equal to 0, modified syndrome values are calculated corresponding to the shifting of the BCH code. The modified syndrome values are those corresponding to the case that the current rightmost bit of the BCH code under the shifting is changed to the inverse value. Additional operations are performed as described herein.

3. 发明授权

US08490037B2 Method and apparatus for tracking uncertain signals 有权
标题翻译：用于跟踪不确定信号的方法和装置
公开(公告)号：US08490037B2
公开(公告)日：2013-07-16
申请号：US13280853
申请日：2011-10-25
申请人： Liang Chen , Yufei Li , Yong Feng Pan , Jian Yang
发明人： Liang Chen , Yufei Li , Yong Feng Pan , Jian Yang
IPC分类号： G06F17/50
CPC分类号： G06F17/5027 , G06F17/5022 , G06F17/5081
摘要： A method and an apparatus for tracking uncertain signals in the simulation of chip design are provided. The method comprises: generating a directed graph which contains sequential logic devices and IO devices from the netlist of chip design, wherein the directed graph illustrates the signal association among the sequential logic devices and IO devices; obtaining the signals related with the sequential logic devices and IO devices from the simulation results, wherein the signals contain a plurality of uncertain signals; and back tracing at least a part of the plurality of uncertain signals along the directed graph to determine the device which firstly generates an uncertain signal. The corresponding apparatus is also provided. With the above method and apparatus, uncertain signals can be traced and their source can be determined, which improves the debugging efficiency.
摘要翻译：提供了一种在芯片设计仿真中跟踪不确定信号的方法和装置。该方法包括：从芯片设计的网表生成包含顺序逻辑器件和IO器件的有向图，其中有向图示出了顺序逻辑器件和IO器件之间的信号关联; 从仿真结果获得与顺序逻辑器件和IO器件相关的信号，其中信号包含多个不确定信号; 并且沿着有向图向后跟踪多个不确定信号的至少一部分，以确定首先产生不确定信号的装置。还提供了相应的装置。利用上述方法和装置，可以追踪不确定的信号并确定其来源，从而提高调试效率。

4. 发明授权

US08914574B2 Content addressable memory and method of searching data thereof 有权
标题翻译：内容可寻址存储器及其数据搜索方法
公开(公告)号：US08914574B2
公开(公告)日：2014-12-16
申请号：US13372869
申请日：2012-02-14
申请人： Yong Feng Pan , Yufei Li , Bo Fan , Liang Chen
发明人： Yong Feng Pan , Yufei Li , Bo Fan , Liang Chen
IPC分类号： G06F12/00 , G06F17/30 , G06F12/08
CPC分类号： G06F17/30982 , G06F12/0864 , G06F12/0895 , G06F17/3033 , G06F2212/1024
摘要： The present invention discloses a content addressable memory and a method of searching data thereof. The method includes generating a hash index data item from a received input data item; searching the cache for presence of a row tag of the RAM data row corresponding to the data item of hash index; in response to presence, searching the RAM for a RAM data item corresponding to the input data item according to the corresponding row tag of the RAM data row; in response to absence, searching the RAM for a RAM data item corresponding to the input data item by using the data item of hash index; and in response to finding a RAM data item corresponding to the input data item in the RAM, outputting data corresponding to the RAM data item. The method can accelerate data search in the CAM.
摘要翻译：本发明公开了一种内容寻址存储器及其数据搜索方法。该方法包括从接收到的输入数据项生成散列索引数据项; 搜索高速缓存存在对应于散列索引的数据项的RAM数据行的行标签; 响应于存在，根据RAM数据行的相应行标签，在RAM中搜索与输入数据项对应的RAM数据项; 响应于不存在，通过使用散列索引的数据项搜索对应于输入数据项的RAM数据项的RAM; 并且响应于找到与RAM中的输入数据项相对应的RAM数据项，输出对应于RAM数据项的数据。该方法可以加速CAM中的数据搜索。

5. 发明申请

US20130046922A1 CONTENT ADDRESSABLE MEMORY AND METHOD OF SEARCHING DATA THEREOF 有权
标题翻译：内容可寻址存储器及其数据搜索方法
公开(公告)号：US20130046922A1
公开(公告)日：2013-02-21
申请号：US13372869
申请日：2012-02-14
申请人： Yong Feng Pan , Yufei Li , Bo Fan , Liang Chen
发明人： Yong Feng Pan , Yufei Li , Bo Fan , Liang Chen
IPC分类号： G06F12/00
CPC分类号： G06F17/30982 , G06F12/0864 , G06F12/0895 , G06F17/3033 , G06F2212/1024
摘要： The present invention discloses a content addressable memory and a method of searching data thereof. The method includes generating a hash index data item from a received input data item; searching the cache for presence of a row tag of the RAM data row corresponding to the data item of hash index; in response to presence, searching the RAM for a RAM data item corresponding to the input data item according to the corresponding row tag of the RAM data row; in response to absence, searching the RAM for a RAM data item corresponding to the input data item by using the data item of hash index; and in response to finding a RAM data item corresponding to the input data item in the RAM, outputting data corresponding to the RAM data item. The method can accelerate data search in the CAM.
摘要翻译：本发明公开了一种内容寻址存储器及其数据搜索方法。该方法包括从接收到的输入数据项生成散列索引数据项; 搜索高速缓存存在对应于散列索引的数据项的RAM数据行的行标签; 响应于存在，根据RAM数据行的相应行标签，在RAM中搜索与输入数据项对应的RAM数据项; 响应于不存在，通过使用散列索引的数据项搜索对应于输入数据项的RAM数据项的RAM; 并且响应于找到与RAM中的输入数据项相对应的RAM数据项，输出对应于RAM数据项的数据。该方法可以加速CAM中的数据搜索。

6. 发明授权

US5478924A Displacement chromatography of proteins using low molecular weight displacers 失效
标题翻译：使用低分子量置换剂的蛋白质置换色谱法
公开(公告)号：US5478924A
公开(公告)日：1995-12-26
申请号：US197146
申请日：1994-02-16
申请人： Steven M. Cramer , James A. Moore , Amitava Kundu , Yufei Li , Guhan Jayaraman
发明人： Steven M. Cramer , James A. Moore , Amitava Kundu , Yufei Li , Guhan Jayaraman
IPC分类号： C07C217/08 , B01D15/42 , C07C215/40 , C07K1/18 , G01N30/02 , C07K1/14 , C07C211/62 , C07K1/16
CPC分类号： B01D15/422 , C07C215/40 , C07K1/18 , G01N30/02
摘要： A method for the purification of proteins by displacement chromatography on ion exchange media using low molecular weight displacers is disclosed. Several classes of low molecular weight, charged species are exemplified, including aminoacids, peptides, antibiotics and dendrimeric polymers. Novel compounds useful as displacers are dendrimers of formula ##STR1## wherein R.sup.1 is lower alkyl, n is 2 to 6, and X is a common counter anion and similar dendritic polymers based thereon.
摘要翻译：公开了一种使用低分子量置换器在离子交换介质上通过置换色谱法纯化蛋白质的方法。例举了几类低分子量带电物质，包括氨基酸，肽，抗生素和树枝状聚合物。可用作置换剂的新型化合物是式“IMAGE”的树枝状大分子，其中R 1是低级烷基，n是2-6，X是常见的抗衡阴离子和类似的树枝状聚合物。

7. 发明授权

US11286238B2 Melatonin derivatives, method thereof, and use thereof 有权
公开(公告)号：US11286238B2
公开(公告)日：2022-03-29
申请号：US16850662
申请日：2020-04-16
申请人： Xiamen Nuokangde Biological Technology Co., Ltd. , Yufei Li
发明人： Yufei Li , Zhu Li , Yunpeng Tian , Jianghong Zhang , Qinbin Li , Xu Yan , Wanyun Li , Haiyang Wang , Ting Wu
IPC分类号： C07D209/16 , A61P25/20
摘要： The present disclosure discloses melatonin derivatives, a method thereof, and a use thereof. The method comprises: dissolving melatonin in a solvent, adding a catalyst while maintaining the solvent at 0° C. to obtain a first reaction solution, stirring the first reaction solution, adding reactants in the first reaction solution, continually stirring at room temperature or at refluxing reaction temperature until, when analyzing by thin layer chromatography, the first reaction solution is fully reacted, quenching the reaction with ice water, concentrating the first reaction solution to obtain a residue of the first reaction solution, and purifying the residue of the first reaction solution by column chromatography to obtain the melatonin derivatives.

8. 发明授权

US5606033A Displacement chromatography of proteins using low molecular weight anionic displacers 失效
标题翻译：使用低分子量阴离子置换剂的蛋白质置换色谱法
公开(公告)号：US5606033A
公开(公告)日：1997-02-25
申请号：US545457
申请日：1995-10-19
申请人： Steven M. Cramer , James A. Moore , Amitava Kundu , Yufei Li , Guhan Jayaraman
发明人： Steven M. Cramer , James A. Moore , Amitava Kundu , Yufei Li , Guhan Jayaraman
IPC分类号： C07C217/08 , B01D15/42 , C07C215/40 , C07K1/18 , G01N30/02 , C07K1/14 , C07K1/16
CPC分类号： B01D15/422 , C07C215/40 , C07K1/18 , G01N30/02
摘要： A method for the purification of proteins by displacement chromatography on ion exchange media using low molecular weight displacers is disclosed. Several classes of low molecular weight anionic species are exemplified, including aromatic rings having sulfonic acid or carboxylic acid moieties attached thereon, sulfated sugar derivatives, anionic antibiotics, and dendrimeric polymers. Novel compounds useful as displacers are dendrimers of formula ##STR1## wherein R.sup.1 is lower alkyl, n is 2 to 6 and similar dendritic polymers based thereon.
摘要翻译：公开了一种使用低分子量置换器在离子交换介质上通过置换色谱法纯化蛋白质的方法。例举了几类低分子量阴离子物质，包括其上连接有磺酸或羧酸部分的芳香环，硫酸化糖衍生物，阴离子抗生素和树枝状聚合物。用作置换剂的新型化合物是基于其的式和类似树枝状聚合物的树枝状大分子。

9. 发明授权

US08495478B2 Frame boundary detection and decoding 有权
标题翻译：帧边界检测和解码
公开(公告)号：US08495478B2
公开(公告)日：2013-07-23
申请号：US13108081
申请日：2011-05-16
申请人： Yang Liu , Bo Fan , Yi Fan Lin , Yufei Li
发明人： Yang Liu , Bo Fan , Yi Fan Lin , Yufei Li
IPC分类号： H03M13/03
CPC分类号： H03M13/333 , H03M13/09 , H03M13/2742 , H03M13/51 , H03M13/6561 , H04L1/0046 , H04L7/048
摘要： Disclosed are a method and apparatus for detecting frame boundary for a data stream received at an Ethernet FEC layer, as well as a decoding method and system for the same. The apparatus for detecting frame boundary may comprise: a buffer for buffering data in a data stream, a length of the data in the buffer being greater than one frame; a syndrome generator for calculating a current syndrome based on a first data item, a second data item, and an intermediate calculation result of a previous syndrome, wherein the first data item is the last bit in a current candidate frame, and the second data item is a bit preceding the current candidate frame; and a comparator for using the current syndrome to check whether the bit preceding the current candidate frame is a frame boundary of an Ethernet FEC layer. The apparatus for detecting frame boundary can improve the speed of frame boundary detection.
摘要翻译：公开了一种用于检测在以太网FEC层接收的数据流的帧边界的方法和装置，以及用于其的解码方法和系统。用于检测帧边界的装置可以包括：用于缓冲数据流中的数据的缓冲器，缓冲器中的数据的长度大于一帧; 一种用于基于第一数据项，第二数据项和先前综合征的中间计算结果计算当前综合征的校正子发生器，其中第一数据项是当前候选帧中的最后位，并且第二数据项在当前候选帧之前有一点; 以及比较器，用于使用当前校正子来检查当前候选帧之前的位是否是以太网FEC层的帧边界。用于检测帧边界的装置可以提高帧边界检测的速度。

10. 发明申请

US20120110526A1 Method and Apparatus for Tracking Uncertain Signals 有权
标题翻译：用于跟踪不确定信号的方法和装置
公开(公告)号：US20120110526A1
公开(公告)日：2012-05-03
申请号：US13280853
申请日：2011-10-25
申请人： Liang Chen , Yufei Li , Yong Feng Pan , Jian Yang
发明人： Liang Chen , Yufei Li , Yong Feng Pan , Jian Yang
IPC分类号： G06F17/50
CPC分类号： G06F17/5027 , G06F17/5022 , G06F17/5081
摘要： A method and an apparatus for tracking uncertain signals in the simulation of chip design are provided. The method comprises: generating a directed graph which contains sequential logic devices and IO devices from the netlist of chip design, wherein the directed graph illustrates the signal association among the sequential logic devices and IO devices; obtaining the signals related with the sequential logic devices and IO devices from the simulation results, wherein the signals contain a plurality of uncertain signals; and back tracing at least a part of the plurality of uncertain signals along the directed graph to determine the device which firstly generates an uncertain signal. The corresponding apparatus is also provided. With the above method and apparatus, uncertain signals can be traced and their source can be determined, which improves the debugging efficiency.
摘要翻译：提供了一种在芯片设计仿真中跟踪不确定信号的方法和装置。该方法包括：从芯片设计的网表生成包含顺序逻辑器件和IO器件的有向图，其中有向图示出了顺序逻辑器件和IO器件之间的信号关联; 从仿真结果获得与顺序逻辑器件和IO器件相关的信号，其中信号包含多个不确定信号; 并且沿着有向图向后跟踪多个不确定信号的至少一部分，以确定首先产生不确定信号的装置。还提供了相应的装置。利用上述方法和装置，可以追踪不确定的信号并确定其来源，从而提高调试效率。

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