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1. 发明授权

US08705268B2 Quantifying the read and write margins of memory bit cells 有权
标题翻译：量化存储位单元的读和写余量
公开(公告)号：US08705268B2
公开(公告)日：2014-04-22
申请号：US13337902
申请日：2011-12-27
申请人： Myron Buer , Carl Monzel , Yifei Zhang
发明人： Myron Buer , Carl Monzel , Yifei Zhang
IPC分类号： G11C11/00 , G11C29/00 , G11C5/14 , G11C8/00
CPC分类号： G11C11/413 , G11C8/08 , G11C11/41 , G11C11/419 , G11C29/50 , G11C2029/1202 , G11C2029/5002
摘要： Yield loss from peripheral circuit failure while screening memory arrays for aging effects is prevented by operating the peripheral circuitry at nominal operating voltages during the screening for aging effects. An integrated circuit including one or more memory bit cells, includes circuitry to change the voltage applied to the supply rails of bit cells and the voltage applied to the word-line drivers relative to each other in order to facilitate improved screening for read and write margins. In normal operation the supply rails for word-line drivers and bit cells are nominally the same. In a write margin test mode the voltage on the supply rail of word-line drivers is lower than the voltage on the supply rail of the bit cells. In a read margin test mode the voltage on the supply rail of word-line drivers is higher than the voltage on the supply rail of the bit cells.
摘要翻译：在筛选老化效应期间，通过在额定工作电压下操作外围电路来防止外围电路故障导致的损耗，同时筛选用于老化效应的存储器阵列。包括一个或多个存储位单元的集成电路包括改变施加到位单元的电源轨的电压和施加到字线驱动器的电压相对于彼此的电压的电路，以便于改进对读和写余量的屏蔽。在正常操作中，字线驱动器和位单元的电源轨标称地相同。在写裕度测试模式下，字线驱动器的电源轨上的电压低于位单元的电源轨上的电压。在读取余量测试模式中，字线驱动器的电源轨上的电压高于位单元的电源轨上的电压。

2. 发明申请

US20130163357A1 Quantifying the Read and Write Margins of Memory Bit Cells 有权
标题翻译：量化存储位单元的读和写裕量
公开(公告)号：US20130163357A1
公开(公告)日：2013-06-27
申请号：US13337902
申请日：2011-12-27
申请人： Myron Buer , Carl Monzel , Yifei Zhang
发明人： Myron Buer , Carl Monzel , Yifei Zhang
IPC分类号： G11C29/00 , G11C5/14
CPC分类号： G11C11/413 , G11C8/08 , G11C11/41 , G11C11/419 , G11C29/50 , G11C2029/1202 , G11C2029/5002
摘要： Yield loss from peripheral circuit failure while screening memory arrays for aging effects is prevented by operating the peripheral circuitry at nominal operating voltages during the screening for aging effects. An integrated circuit including one or more memory bit cells, includes circuitry to change the voltage applied to the supply rails of bit cells and the voltage applied to the word-line drivers relative to each other in order to facilitate improved screening for read and write margins. In normal operation the supply rails for word-line drivers and bit cells are nominally the same. In a write margin test mode the voltage on the supply rail of word-line drivers is lower than the voltage on the supply rail of the bit cells. In a read margin test mode the voltage on the supply rail of word-line drivers is higher than the voltage on the supply rail of the bit cells.
摘要翻译：在筛选老化效应期间，通过在额定工作电压下操作外围电路来防止外围电路故障导致的损耗，同时筛选用于老化效应的存储器阵列。包括一个或多个存储位单元的集成电路包括改变施加到位单元的电源轨的电压和施加到字线驱动器的电压相对于彼此的电压的电路，以便于改进对读和写余量的屏蔽。在正常操作中，字线驱动器和位单元的电源轨标称地相同。在写裕度测试模式下，字线驱动器的电源轨上的电压低于位单元的电源轨上的电压。在读取余量测试模式中，字线驱动器的电源轨上的电压高于位单元的电源轨上的电压。

3. 发明授权

US08745468B1 Iterative decoding systems using noise-biasing 有权
标题翻译：使用噪声偏置的迭代解码系统
公开(公告)号：US08745468B1
公开(公告)日：2014-06-03
申请号：US12357200
申请日：2009-01-21
申请人： Yifei Zhang , Nedeljko Varnica , Gregory Burd
发明人： Yifei Zhang , Nedeljko Varnica , Gregory Burd
IPC分类号： H03M13/00
CPC分类号： G06F11/1004 , H03M13/1102 , H03M13/1111 , H03M13/1117 , H03M13/2951 , H03M13/3723 , H03M13/6331 , H03M13/6508 , H03M13/658
摘要： Systems, methods, and apparatus are provided for improving the iterative decoding performance of a decoder, for example, as used in a wireless communications receiver or in a data retrieval unit. A decoding technique may receive and process a set of channel samples using an iterative decoder. If the iterative decoder output indicates a decoding failure, noise samples may be combined with the received channel samples to create biased channel samples. Noise samples may be generated using a pseudo-random noise generator and/or by using signals already present in the communications receiver or data retrieval unit. The biased channel samples may be provided to the iterative decoder and the iterative decoder may re-run using the biased channel samples.
摘要翻译：提供了系统，方法和装置，用于改进解码器的迭代解码性能，例如，如在无线通信接收机或数据检索单元中所使用的那样。解码技术可以使用迭代解码器来接收和处理一组信道样本。如果迭代解码器输出指示解码失败，则可以将噪声样本与接收到的信道样本组合以产生偏置信道样本。可以使用伪随机噪声发生器和/或通过使用已经存在于通信接收器或数据检索单元中的信号来产生噪声样本。可以将偏置的信道样本提供给迭代解码器，并且迭代解码器可以使用偏置信道样本重新运行。

4. 发明授权

US08478787B2 Name detection 有权
标题翻译：名称检测
公开(公告)号：US08478787B2
公开(公告)日：2013-07-02
申请号：US12746465
申请日：2007-12-06
申请人： Jun Wu , Hui Xu , Yifei Zhang
发明人： Jun Wu , Hui Xu , Yifei Zhang
IPC分类号： G06F17/30
CPC分类号： G06F17/278
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for name detection. A method includes generating a raw name detection model using a collection of family names and an annotated corpus including a collection of n-grams. The method includes applying the raw name detection model to a collection of semi-structured data to form annotated semi-structured data identifying n-grams identifying names and n-grams not identifying names and applying the raw name detection model to a large unannotated corpus to form a large annotated corpus data identifying n-grams of the large unannotated corpus identifying names and n-grams not identifying names. The method includes generating a name detection model, including deriving a name model using the annotated semi-structured data identifying names and the large annotated corpus data identifying names, deriving a not-name model using the semi-structured data not identifying names, and deriving a language model using the large annotated corpus.
摘要翻译：方法，系统和装置，包括在计算机存储介质上编码的计算机程序，用于名称检测。一种方法包括使用族名集合和包括n-gram集合的注释语料库来生成原始名称检测模型。该方法包括将原始名称检测模型应用于半结构化数据的集合，以形成标识识别名称的n-gram和不识别名称的n-gram的注释半结构化数据，并将原始名称检测模型应用于大型未注释语料库形成一个大的注释语料库数据，用于识别大型未注释语料库识别名称的n-gram和不识别姓名的n-gram。该方法包括生成名称检测模型，包括使用标识名称的注释半结构化数据和识别名称的大型注释语料库数据来导出名称模型，使用不标识姓名的半结构化数据导出非名称模型，以及导出一种使用大型注释语料库的语言模型。

5. 发明授权

US07976595B2 Method of gasification burner online feeding 有权
标题翻译：气化炉在线进料方法
公开(公告)号：US07976595B2
公开(公告)日：2011-07-12
申请号：US12031180
申请日：2008-02-14
申请人： Xin Wang , Minglin Zhang , Qingrui Zhu , Min Zhu , Jiyong Zhang , Xinfang Jiang , Yifei Zhang , Yongkui Sun , Mei Han , Weihua Zhang
发明人： Xin Wang , Minglin Zhang , Qingrui Zhu , Min Zhu , Jiyong Zhang , Xinfang Jiang , Yifei Zhang , Yongkui Sun , Mei Han , Weihua Zhang
IPC分类号： C01B3/36 , C01B6/24 , C01B3/02 , C01B3/24 , C10J3/00 , B01J7/00
CPC分类号： C10J3/485 , C10J3/503 , C10J3/506 , C10J3/723 , C10J2200/15 , C10J2300/093 , C10J2300/0959 , C10J2300/0973
摘要： A method of gasification burner online feeding for a coal-water slurry gasifier, where a coal-water slurry line and an oxidizer line are both protected by shield gas. The method may realize online, pressurized and continuous feeding of the gasification burners which are fixed after they stalled for other reasons than their own, thus greatly reducing the probability of accidental shutdown of gasifiers and improving the reliability of long-term service of the multi-nozzle opposed gasifier.
摘要翻译：一种用于水煤浆气化炉的气化燃烧器在线进料方法，其中煤水浆料管线和氧化剂管线均被保护气体保护。该方法可实现气化燃烧器的在线，加压和连续进料，由于其自身的其他原因而停止，从而大大降低了气化器意外关闭的可能性，提高了多功能燃烧器长期服务的可靠性，喷嘴对置气化器。

6. 发明授权

US08044832B1 Interleaver for turbo equalization 有权
公开(公告)号：US08044832B1
公开(公告)日：2011-10-25
申请号：US13038141
申请日：2011-03-01
申请人： Yifei Zhang , Kiran Gunnam , Gregory Burd
发明人： Yifei Zhang , Kiran Gunnam , Gregory Burd
IPC分类号： H03M7/00
CPC分类号： H03M13/2782 , H03M13/1102 , H03M13/116 , H03M13/2707 , H03M13/2742 , H03M13/2957 , H03M13/6325
摘要： A plurality of “local” interleavers replaces a single global interleaver for processing encoded data. If the encoded data may be represented as a matrix of data blocks, or “circulants,” each local interleaver can be the size of one or a small number of circulants. Thus, for example, if the matrix has a certain number of rows and columns, the number of local interleavers may be equal to the number of columns. Each local interleaver is small so latency is low.

7. 发明授权

US07911364B1 Interleaver for turbo equalization 有权
标题翻译：交换机用于涡轮均衡
公开(公告)号：US07911364B1
公开(公告)日：2011-03-22
申请号：US12203691
申请日：2008-09-03
申请人： Yifei Zhang , Kiran Gunnam , Gregory Burd
发明人： Yifei Zhang , Kiran Gunnam , Gregory Burd
IPC分类号： H03M7/00
CPC分类号： H03M13/2782 , H03M13/1102 , H03M13/116 , H03M13/2707 , H03M13/2742 , H03M13/2957 , H03M13/6325
摘要： A plurality of “local” interleavers replaces a single global interleaver for processing encoded data. If the encoded data may be represented as a matrix of data blocks, or “circulants,” each local interleaver can be the size of one or a small number of circulants. Thus, for example, if the matrix has a certain number of rows and columns, the number of local interleavers may be equal to the number of columns. Each local interleaver is small so latency is low.
摘要翻译：多个“本地”交织器替换单个全局交织器来处理编码数据。如果编码数据可以表示为数据块或“循环”的矩阵，则每个局部交织器可以是一个或少数循环的大小。因此，例如，如果矩阵具有一定数量的行和列，则本地交织器的数量可以等于列数。每个局部交织器都很小，所以延迟很低。

8. 发明授权

US07639462B2 Method and system for reducing transient event effects within an electrostatic discharge power clamp 有权
标题翻译：用于减少静电放电电源钳中瞬时事件影响的方法和系统
公开(公告)号：US07639462B2
公开(公告)日：2009-12-29
申请号：US11257510
申请日：2005-10-25
申请人： Jeffrey Graebel , Yifei Zhang
发明人： Jeffrey Graebel , Yifei Zhang
IPC分类号： H02H9/00
CPC分类号： H02H9/046 , H01L27/0266
摘要： A method and system for reducing transient event effects, such as radiation effects, in an electrostatic discharge (ESD) power clamp is provided. The ESD power clamp includes triggering circuitry to determine the on-time of the power clamp during an ESD event, and drive circuits driving pull down devices to carry the ESD current. Two separate driver circuits are used to control the pull down circuits separately to guard against a single event effect (SEE). The ESD power clamp operates when both drive circuits are operated simultaneously to shunt the ESD to ground.
摘要翻译：提供了用于减少静电放电（ESD）电源钳中的瞬态事件效应（例如辐射效应）的方法和系统。 ESD功率钳包括触发电路，用于在ESD事件期间确定功率钳位的导通时间，驱动电路驱动下拉器件来承载ESD电流。使用两个独立的驱动器电路来分别控制下拉电路以防止单个事件效应（SEE）。当两个驱动电路同时工作时，ESD功率钳位操作，以将ESD分流到地。

9. 发明授权

US07366006B2 SRAM with read assist 失效
标题翻译： SRAM具有读取辅助功能
公开(公告)号：US07366006B2
公开(公告)日：2008-04-29
申请号：US11401679
申请日：2006-04-11
申请人： Yifei Zhang
发明人： Yifei Zhang
IPC分类号： G11C11/00
CPC分类号： G11C11/419 , G11C11/4125
摘要： A Static Random Access Memory (SRAM) matrix with a read assist is described. The read assist reduces the probability associated with an SRAM matrix becoming upset by a radiation event. Each SRAM cell within the SRAM matrix includes an active delay for increasing Single Event Upset (SEU) tolerance. The described SRAM matrix also includes a read assist coupled to each column of the SRAM matrix. The read assists store values associated with a row of SRAM cells, one SRAM cell of which is to be written to. If a radiation event occurs on any of the SRAM cells not being written to, the read assist restores an original value associated with the upset SRAM cell.
摘要翻译：描述了具有读辅助的静态随机存取存储器（SRAM）矩阵。读取辅助减少与由辐射事件扰乱的SRAM矩阵相关联的概率。 SRAM矩阵中的每个SRAM单元包括用于增加单次事件颠簸（SEU）容差的有效延迟。所描述的SRAM矩阵还包括耦合到SRAM矩阵的每列的读辅助。读取辅助存储与一行SRAM单元相关联的值，其中一个SRAM单元将被写入。如果在未写入的任何SRAM单元上发生辐射事件，则读取辅助恢复与不稳定SRAM单元相关联的原始值。

10. 发明申请

US20180233796A1 SLOT COUPLED DIRECTIONAL COUPLER AND DIRECTIONAL FILTERS IN MULTILAYER SUBSTRATE 审中-公开
公开(公告)号：US20180233796A1
公开(公告)日：2018-08-16
申请号：US15666637
申请日：2017-08-02
申请人： Yifei Zhang , Shouyuan Shi , Richard Martin , Dennis Prather
发明人： Yifei Zhang , Shouyuan Shi , Richard Martin , Dennis Prather
IPC分类号： H01P1/212 , H01P5/18
CPC分类号： H01P1/212 , H01P5/184 , H01P5/185 , H01P5/187
摘要： Traveling-wave directional filters (DFs) with multiple coupling slots are disclosed. A traveling-wave directional filter may include two terminating conductive strips in a top circuit layer of a substrate, a loop resonator in a bottom layer of a substrate, and a shared ground plane. Coupling slots in the ground plane may couple the conductive strips via the loop resonator.

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