公开(公告)号：US20070201567A1

公开(公告)日：2007-08-30

申请号：US11674202

申请日：2007-02-13

申请人： Jianhua Liu ,  Qixiang Wu

发明人： Jianhua Liu ,  Qixiang Wu

IPC分类号： H04K1/10

CPC分类号： H04L27/2624 ,  H04L25/03828 ,  H04L27/2613

摘要： A device and a method for clipping multicarrier signal are provided. The method for clipping multicarrier signal includes: detecting whether an Idle Period in DownLink (IPDL) starts in each subcarrier forming a multicarrier joint signal and generating an IPDL flag just when the IPDL starts in a subcarrier; detecting power of each subcarrier to get a detection result; selecting a clipping filter coefficient according to the IPDL flag and the detection result; performing a clipping processing of the received multicarrier joint signal according to the clipping filter coefficient and outputting the multicarrier joint signal after the clipping processing. Embodiments of the present invention meet demands of an IPDL time template and effectively support an IPDL mechanism in a Wideband Code Division Multiple Access (WCDMA) system on the premise of no multicarrier signal clipping performance is affected.

摘要翻译： 提供了一种用于限幅多载波信号的装置和方法。 剪辑多载波信号的方法包括：检测下行链路中的空闲周期（IPDL）是否在形成多载波联合信号的每个子载波中开始，并且恰好在IPDL在子载波中启动时产生IPDL标志; 检测每个子载波的功率以获得检测结果; 根据IPDL标志和检测结果选择限幅滤波器系数; 根据削波滤波器系数执行所接收的多载波关节信号的削波处理，并在削波处理之后输出多载波关节信号。 在不影响多载波信号削波性能的前提下，本发明的实施例满足了IPDL时间模板的需求并有效地支持了宽带码分多址（WCDMA）系统中的IPDL机制。

公开(公告)号：US11043950B2

公开(公告)日：2021-06-22

申请号：US16586891

申请日：2019-09-27

申请人： Jianhua Liu ,  Chienkuang Chen

发明人： Jianhua Liu ,  Chienkuang Chen

IPC分类号： H03K19/17728 ,  H03K19/17704 ,  H03K19/17736

摘要： A programmable logic device (“PLD”) contains programmable digital signal processing (“DSP”) blocks operable to be selectively programmed to perform one or more logic functions. The PLD, in one embodiment, includes configurable logic blocks (“LBs”), an input and output (“I/O”) block, and programmable DSP blocks. The configurable LBs are able to be selectively programmed to perform one or more logic functions. The I/O block includes I/O ports for facilitating data transfer. The programmable DSP blocks are configured to perform various predefined logic functions. Each of the programmable DSP blocks, in one aspect, includes at least one configurable DSP which, in one embodiment, includes a 27×18 multiplier and a 12×12 multiplier.

公开(公告)号：US20200145009A1

公开(公告)日：2020-05-07

申请号：US16730716

申请日：2019-12-30

申请人： Jinghui Zhu ,  Jianhua Liu ,  Ning Song

发明人： Jinghui Zhu ,  Jianhua Liu ,  Ning Song

IPC分类号： H03K19/17784 ,  H03K19/17724

摘要： A programmable semiconductor device capable of being selectively programmed to perform one or more logic functions includes a first region, second region, first regional power control (“RPC”), and second-to-first power control connection. The first region, in one embodiment, contains first configurable logic blocks (“CLBs”) able to be selectively programmed to perform a first logic function. The second region includes a group of second CLBs configured to be selectively programmed to perform a second logic function. The first RPC port or inter-chip port which is coupled between the first and second regions facilitates dynamic power supply to the first region in response to the data in the second region. The second-to-first power control connection is used to allow the second region to facilitate and/or control power to the first region.

公开(公告)号：US20130193223A1

公开(公告)日：2013-08-01

申请号：US13820493

申请日：2011-09-02

申请人： Dongsheng Mei ,  Ming Zou ,  Zhenyu Han ,  Quan Xu ,  Hua Guo ,  Yong Deng ,  Dadong Li ,  Li Tang ,  Yun Zhao ,  Jianhua Liu

发明人： Dongsheng Mei ,  Ming Zou ,  Zhenyu Han ,  Quan Xu ,  Hua Guo ,  Yong Deng ,  Dadong Li ,  Li Tang ,  Yun Zhao ,  Jianhua Liu

IPC分类号： E01B5/02

CPC分类号： E01B5/02 ,  C21D9/04 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/24 ,  C22C38/28 ,  Y10T29/49991

摘要： The present discloses a steel rail for high speed and quasi-high speed railways and a manufacturing method thereof. The steel rail having a superior rolling contact fatigue property can be obtained by reducing content of carbon in conjunction with controlled cooling after rolling. The steel rail includes 0.40-0.64% by weight of C, 0.10-1.00% by weight of Si, 0.30-1.50% by weight of Mn, less than or equal to 0.025% by weight of P, less than or equal to 0.025% by weight of S, less than or equal to 0.005% by weight of Al, more than 0 and less than or equal to 0.05% by weight of a rare earth element, more than 0 and less than or equal to 0.20% by weight of at least one of V, Cr, and Ti, and a remainder of Fe and inevitable impurities. The steel rail manufactured according to the method of the present invention maintains the strength and hardness of the existing steel rail for the high speed railways, while enhancing the toughness, plasticity and yield strength, and an energy value required for initiating and expanding microcracks formed at the surface of the steel rail due to fatigue is increased, and thus under the same conditions, the rolling contact fatigue property of the steel rail can be improved, thereby finally improving the service lifetime and the transportation safety of the steel rail.

摘要翻译： 本发明公开了一种用于高速和准高速铁路的钢轨及其制造方法。 具有优异的滚动疲劳性能的钢轨可以通过在轧制后与可控制的冷却相结合地减少碳含量来获得。 钢轨包含0.40-0.64重量％的C，0.10-1.00重量％的Si，0.30-1.50重量％的Mn，小于或等于0.025重量％的P，小于或等于0.025重量％ 的S，小于或等于0.005重量％的Al，大于0和小于或等于0.05重量％的稀土元素，大于0重量％且小于等于0.20重量％ V，Cr和Ti中的至少一种，剩余的Fe和不可避免的杂质。 根据本发明的方法制造的钢轨在提高韧性，塑性和屈服强度的同时保持现有的高速铁路钢轨的强度和硬度，以及形成的微裂纹所需的能量值 钢轨的疲劳表面增加，因此在相同条件下，能够提高钢轨的滚动疲劳特性，从而最终提高钢轨的使用寿命和运输安全性。

公开(公告)号：US08176111B1

公开(公告)日：2012-05-08

申请号：US12008785

申请日：2008-01-14

申请人： Jianhua Liu ,  Gregg William Baeckler

发明人： Jianhua Liu ,  Gregg William Baeckler

IPC分类号： G06F7/487

CPC分类号： G06F7/4873

摘要： An improved method and apparatus for performing floating-point division is disclosed. In a particular embodiment, fractional operands are pre-scaled and an estimate of a reciprocal of the pre-scaled fractional divisor is obtained from a lookup table using a portion of the bits of the pre-scaled fractional divisor. This value is used to scale the fractional operands and a multiply-add operation is used based on principles of series expansion to compute a final result with an acceptable degree of accuracy.

摘要翻译： 公开了一种用于执行浮点分割的改进方法和装置。 在特定实施例中，分数操作数被预缩放，并且使用预缩小分数除数的比特的一部分从查找表中获得预缩小分数除数的倒数的估计。 该值用于缩放小数操作数，并且基于串联扩展的原理使用乘法运算，以便以可接受的准确度计算最终结果。

公开(公告)号：US07881403B2

公开(公告)日：2011-02-01

申请号：US11864015

申请日：2007-09-28

申请人： Guozho Long ,  Jun Zhou ,  Jianhua Liu

发明人： Guozho Long ,  Jun Zhou ,  Jianhua Liu

IPC分类号： H04L25/49

CPC分类号： H04L1/0002 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/0025 ,  H04L5/0007 ,  H04L5/0042 ,  H04L5/0046 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/008 ,  H04L5/0085 ,  H04L5/0087 ,  H04L5/0096 ,  H04L25/0202 ,  H04L27/2656 ,  H04M11/062 ,  Y02D50/10

摘要： A system for realizing emergency rate reduction (SOS). A receiver initiates a short rate-reduction request, and communicates that request to a transmitter. The transmitter initiates an operational switch to an adjusted transmission reference (i.e., a new bit/gain table), by sending a signal to synchronize the operational switch for both the transmitter and the receiver. The adjusted transmission reference may be calculated using a formula, from a current bit/gain table, or may be a predefined bit/gain table. The parameters of the formula may be predefined, calculated during initialization, or determined in real time during SOS.

摘要翻译： 实现紧急降速系统（SOS）。 接收机启动短速率降低请求，并将该请求传送到发射机。 发射机通过发送信号来同步发射机和接收机两者的操作开关来启动经调整的传输参考（即，新的比特/增益表）的操作切换。 可以使用来自当前比特/增益表的公式来计算经调整的发送参考，或者可以是预定义的比特/增益表。 公式的参数可以是预定义的，在初始化期间计算，或在SOS期间实时确定。

公开(公告)号：US20090078063A1

公开(公告)日：2009-03-26

申请号：US12228054

申请日：2008-08-07

申请人： Yangtian Zhang ,  Jianhua Liu ,  Yaoxin Wang ,  Hua Peng

发明人： Yangtian Zhang ,  Jianhua Liu ,  Yaoxin Wang ,  Hua Peng

IPC分类号： G01N1/02

CPC分类号： G01N1/02 ,  G01N2001/022 ,  G01N2001/028

摘要： A hand-held sampling apparatus used for an ion mobility spectrometer and method of obtaining a sample are provided to prevent deformation of sampling wipes when detecting explosives and drugs. The apparatus has a body comprising a handle in the rear portion and a wiping sampling mechanism in the front portion, with a wiping surface located on its underside. The sampling wipe can be in full contact with the surface of the object during wiping to improve wiping efficiency. Correspondingly, a smaller sample inlet port can be disposed on the analyzer so as to save a large amount of sampling wipes. and meanwhile avoid sampling wipes from deformation and folds hard to restore, thereby ensuring subsequent sample insertion operation, enhancing the efficiency of both sample collection and sample injection and improving the detection performance for the analytes to be detected. The method of using said sampling device according to the present invention comprises the following steps: attaching a sampling wipe to the swiping surface; fixing the front end portion of the sampling wipe by using the front holder, and fixing the rear end portion of the sampling wipe by using the rear holder. The method of the present invention is simple and convenient.

摘要翻译： 提供用于离子迁移谱仪的手持取样装置和获得样品的方法，以防止在检测爆炸物和药物时采样湿巾变形。 该装置具有主体，该主体包括在后部的手柄和在前部中的擦拭取样机构，其擦拭表面位于其下侧。 在擦拭过程中，取样擦拭物可以与物体的表面充分接触以提高擦拭效率。 相应地，可以在分析器上设置较小的样品入口，以便节省大量的采样湿巾。 同时避免采样湿巾变形，折叠难以恢复，从而确保随后的样品插入操作，提高样品收集和样品注入的效率，并提高待检测分析物的检测性能。 根据本发明的使用所述采样装置的方法包括以下步骤：将取样擦拭物附接到所述滑动表面; 通过使用前保持器固定取样擦拭物的前端部分，并且通过使用后支架固定取样擦拭物的后端部分。 本发明的方法简单方便。

公开(公告)号：US20070280334A1

公开(公告)日：2007-12-06

申请号：US11612965

申请日：2006-12-19

申请人： Zhipeng Lv ,  Jianhua Liu

发明人： Zhipeng Lv ,  Jianhua Liu

IPC分类号： H04B1/69

CPC分类号： H04M11/062 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006

摘要： The present invention discloses a method of xDSL upstream and downstream shared frequency dynamic frequency spectrum management comprising the following steps: Step a. Generate all feasible combinations of subchannels in both upstream and downstream directions for an xDSL line; Step b, Determine which combination of said combinations has an optimal spectrum coordination; and Step c) Adjust direction of transmission and transmit power of the xDSL line according to said optimal combination. The present invention also discloses an xDSL upstream and downstream shared frequency dynamic frequency spectrum management device.

摘要翻译： 本发明公开了一种xDSL上下行共享频率动态频谱管理方法，包括以下步骤：步骤a。 为xDSL行生成上行和下行两个方向的子通道的所有可行组合; 步骤b，确定所述组合的组合具有最佳频谱协调; 和步骤c）根据所述最佳组合来调整xDSL线路的传输方向和发射功率。 本发明还公开了一种xDSL上下行共享频率动态频谱管理装置。

公开(公告)号：US20070127477A1

公开(公告)日：2007-06-07

申请号：US11566940

申请日：2006-12-05

申请人： Zhongwen Peng ,  Laijun Zhong ,  Jianhua Liu

发明人： Zhongwen Peng ,  Laijun Zhong ,  Jianhua Liu

IPC分类号： H04L12/56

CPC分类号： H04L45/302 ,  H04L12/1854 ,  H04L45/00 ,  H04L45/16 ,  H04L45/48 ,  H04L45/50

摘要： A method for implementing multicast based on a Multi-Service Transport Platform (MSTP), by establishing a Label Switch Path (LSP) multicast tree branch from a source network node based on the MSTP to multiple destination network nodes. According to the LSP multicast tree branch, data packets can be transmitted in multicast manner from the source network node to multiple destination network nodes, so that the procedure of network node's transmitting the data packets to multiple parts is simplified. In the present invention embodiment, LSP is utilized and multiple protocols label switch is supported, so that service protection function, flow management and flow engineering can be implemented and good QoS guarantee can be provided, which is suitable for large-scale network construction; while the multicast method is simplified and effective, operational and controllable management upon communication networks can be implemented to provide reliable QoS guarantee for network terminals.

摘要翻译： 一种基于多业务传输平台（MSTP）实现组播的方法，通过从基于MSTP的源网络节点建立到多个目的网络节点的标签交换路径（LSP）组播树分支。 根据LSP组播树分支，数据包可以从组播方式从源网络节点传输到多个目的网络节点，简化了网络节点将数据包发送到多个部分的过程。 在本发明实施例中，利用LSP，支持多协议标签交换，实现业务保护功能，流量管理和流程工程，提供良好的QoS保证，适合大规模网络建设; 而组播方法简化有效，可以实现通信网络的操作和可控管理，为网络终端提供可靠的QoS保证。

公开(公告)号：US20210099175A1

公开(公告)日：2021-04-01

申请号：US16586891

申请日：2019-09-27

申请人： Jianhua Liu ,  Chienkuang Chen

发明人： Jianhua Liu ,  Chienkuang Chen

IPC分类号： H03K19/177

摘要： A programmable logic device (“PLD”) contains programmable digital signal processing (“DSP”) blocks operable to be selectively programmed to perform one or more logic functions. The PLD, in one embodiment, includes configurable logic blocks (“LBs”), an input and output (“I/O”) block, and programmable DSP blocks. The configurable LBs are able to be selectively programmed to perform one or more logic functions. The I/O block includes I/O ports for facilitating data transfer. The programmable DSP blocks are configured to perform various predefined logic functions. Each of the programmable DSP blocks, in one aspect, includes at least one configurable DSP which, in one embodiment, includes a 27×18 multiplier and a 12×12 multiplier.