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    • 121. 发明授权
    • Combiner training and evaluation with random data partition
    • 组合训练与评估与随机数据分区
    • US07756802B2
    • 2010-07-13
    • US11754859
    • 2007-05-29
    • Qi Zhang
    • Qi Zhang
    • G06F17/00G06N5/00
    • G06K9/6217G06K9/6262G06K9/6292G06Q10/0875
    • Available training data is randomly data partitioned to generate a training data set for training base modules of a pattern recognition system and a distinct tune data set for training the combiner of the system. The process can be repeated with randomly generated data sets each time. After the combiner is trained, it can be evaluated employing another random partitioning of the training data to a training data set for training new set of base modules and a distinct test data set for evaluating the combiner providing reliable statistical evaluation of the combined system without the need of a standalone test set.
    • 可用的训练数据被随机数据分割以产生用于训练模式识别系统的基本模块和用于训练系统的组合器的不同调谐数据集的训练数据集。 该过程可以随时随机生成数据集重复。 在组合器被训练之后,可以使用训练数据的另外随机划分来训练新的基本模块集合的训练数据集和用于评估组合器的不同测试数据集来评估组合系统,而不需要组合系统 需要一个独立的测试集。
    • 122. 发明授权
    • Method and apparatus for a process, voltage, and temperature variation tolerant semiconductor device
    • 用于工艺,电压和温度变化的半导体器件的方法和装置
    • US07728630B1
    • 2010-06-01
    • US12362417
    • 2009-01-29
    • Guo Jun RenQi ZhangKetan Sodha
    • Guo Jun RenQi ZhangKetan Sodha
    • H03K19/094H03K19/0175
    • H03K19/00384H03K17/163H03K2005/00123H03K2005/0013H03K2005/00143
    • A method and apparatus to reduce the degradation in performance of semiconductor-based devices due to process, voltage, and temperature (PVT) and/or other causes of variation. Adaptive feedback mechanisms are employed to sense and correct performance degradation, while simultaneously facilitating configurability within integrated circuits (ICs) such as programmable logic devices (PLDs). A voltage-feedback mechanism is employed to detect PVT variation and mirrored current references are adaptively adjusted to track and substantially eliminate the PVT variation. More than one voltage-feedback mechanism may instead be utilized to detect PVT-based variations within a differential device, whereby a first voltage-feedback mechanism is utilized to detect common-mode voltage variation and a second voltage-feedback mechanism produces mirrored reference currents to substantially remove the common-mode voltage variation and facilitate symmetrical operation of the differential device. Edge boosting modules are employed to improve performance during reduced output common mode voltage modes of operation.
    • 一种降低由于工艺,电压和温度(PVT)和/或其它变化原因导致的基于半导体的器件性能下降的方法和装置。 使用自适应反馈机制来感测和纠正性能下降,同时促进诸如可编程逻辑器件(PLD)之类的集成电路(IC)内的可配置性。 采用电压反馈机制来检测PVT变化,并自适应调整镜像电流参考以跟踪和基本上消除PVT变化。 可以替代地使用多于一个的电压反馈机构来检测差分装置内的基于PVT的变化,由此利用第一电​​压反馈机构来检测共模电压变化,而第二电压反馈机构产生镜像参考电流 基本上消除了共模电压变化,并促进了差动装置的对称运行。 边缘升压模块用于在降低输出共模电压工作模式的同时提高性能。
    • 123. 发明授权
    • Methods and apparatus for implementing an output circuit
    • 用于实现输出电路的方法和装置
    • US07635990B1
    • 2009-12-22
    • US12175925
    • 2008-07-18
    • Guo Jun RenQi Zhang
    • Guo Jun RenQi Zhang
    • H03K19/094H03K19/0175
    • H03K19/018528H03K19/00369H04L25/0272
    • An output circuit providing an adjustable output amplitude and common-mode voltage is described. The output circuit includes at least one driver circuit and a common-mode feedback circuit including a first replica circuit of the at least one driver circuit. The common-mode feedback circuit is coupled to receive a first bias and provide an output coupled to the at least one driver circuit. The output circuit may also include a current circuit having a configurable resistor and a second replica circuit of the at least one driver circuit. The current circuit may be coupled to receive a second bias and to provide an output coupled to the at least one driver circuit and the common-mode feedback circuit.
    • 描述了提供可调输出幅度和共模电压的输出电路。 输出电路包括至少一个驱动电路和包括至少一个驱动电路的第一复制电路的共模反馈电路。 共模反馈电路被耦合以接收第一偏置并提供耦合到至少一个驱动器电路的输出。 输出电路还可以包括具有可配置电阻器的电流电路和至少一个驱动器电路的第二复制电路。 当前电路可以被耦合以接收第二偏置并且提供耦合到至少一个驱动器电路和共模反馈电路的输出。
    • 126. 发明申请
    • REGRESSION-BASED SYSTEM AND METHOD FOR DETERMINING RESOURCE COSTS FOR COMPOSITE TRANSACTIONS
    • 基于回归的系统和确定复合交易资源成本的方法
    • US20080222197A1
    • 2008-09-11
    • US11684563
    • 2007-03-09
    • Ludmila CherkasovaQi ZhangGuy MathewsWayne Greene
    • Ludmila CherkasovaQi ZhangGuy MathewsWayne Greene
    • G06F7/00
    • G06F17/30412G06F17/30489
    • A method comprises receiving a representative workload of a computing system, where the representative workload comprises at least one composite transaction. In certain embodiments, the representative workload is a historical workload of a computing system. In general, a composite transaction refers to a transaction that comprises a plurality of transactions. For instance, a given transaction for serving a client's request for information (e.g., a web page) may include embedded therein a plurality of requests/responses for objects (e.g., images, etc.) that form the information (e.g., that form the requested web page). The method further comprises determining, based at least in part on a statistical regression-based analysis, a resource cost for the at least one composite transaction, where the resource cost reflects an amount of utilization of at least one resource of the computing system, such as CPU utilization, in serving the at least one composite transaction.
    • 一种方法包括接收计算系统的代表性工作量,其中所述代表性工作负载包括至少一个复合事务。 在某些实施例中,代表性工作负载是计算系统的历史工作量。 通常,复合事务是指包括多个事务的事务。 例如,用于服务客户端信息请求(例如,网页)的给定交易可以包括在其中嵌入形成信息的对象(例如,图像等)的多个请求/响应(例如,形成 请求的网页)。 该方法还包括至少部分地基于统计回归分析来确定至少一个复合事务的资源成本,其中资源成本反映计算系统的至少一个资源的利用量,例如 作为CPU利用率,用于服务至少一个复合事务。
    • 130. 发明申请
    • Cursive handwriting recognition with hierarchical prototype search
    • 草书手写识别与分层原型搜索
    • US20070280535A1
    • 2007-12-06
    • US11442799
    • 2006-05-30
    • Qi ZhangMichael T. Black
    • Qi ZhangMichael T. Black
    • G06K9/18
    • G06K9/00422G06K9/6807G06K2209/011
    • Various technologies and techniques are disclosed that improve cursive handwriting recognition. Cursive handwriting input is received from a user. The system performs a hierarchical prototype search as part of a recognition operation. A same space search is performed against a mixed database that has both print and cursive samples. A same space search is also performed against a cursive database that has only cursive samples. The results of these two same space searches are merged into a combined alternate list. The combined alternate list is then used as a constraint for the dynamic time warp searches that are performed against the mixed and cursive databases, respectively. The results of the dynamic time warp searches are also merged into a final combined alternate list, and the combined alternate list is used to make a recognition decision regarding the user's handwritten input.
    • 公开了改进草书手写识别的各种技术和技术。 从用户接收草写手写输入。 系统执行分层原型搜索作为识别操作的一部分。 对具有打印和草书样本的混合数据库执行相同的空间搜索。 对仅具有草书样本的草书数据库也执行相同的空间搜索。 这两个相同的空间搜索的结果被合并到组合的替代列表中。 然后,组合的替代列表用作对混合和草书数据库执行的动态时间扭曲搜索的约束。 动态时间扭曲搜索的结果也被合并到最终组合的替代列表中,组合的替代列表用于对用户的手写输入进行识别决定。