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公开(公告)号：US07218612B2
公开(公告)日：2007-05-15
申请号：US10457113
申请日：2003-06-09
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
CPC分类号： H04J3/0682 , G01V1/22
摘要： A network arrangement uses a poll select control protocol and a loop back arrangement at each node for equalizing transmission delay from each node to a central station. Delays at each node can be adjusted to start timing in response to a broadcast signal indicating an amount of delay to be applied from the start of a synchronization interval to the beginning of transmission of data collected at the nodes. The arrangement is particularly useful in the field of data acquisition and particularly in the area of seismic sensing.
摘要翻译： 网络布置在每个节点处使用轮询选择控制协议和循环布置来均衡从每个节点到中心站的传输延迟。 可以调整每个节点的延迟以响应于指示从同步间隔开始到在节点处收集的数据的传输的开始而应用的延迟量的广播信号。 该方案在数据采集领域尤其在地震检测领域特别有用。
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公开(公告)号：US06980037B1
公开(公告)日：2005-12-27
申请号：US09153864
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
摘要： A power on reset circuit, preferably for an integrated circuit, detects application of voltage, starts a phase locked loop one application of voltage is detected but inhibits all clock used for digital logic operations until voltage stability is achieved. If a switched converter is used, the duty cycle of the switched converter is held at unity for a period of time before it is set to that needed to achieve the desired chip operating voltage. Clocks controlling other circuits can be released in stages after the duty cycle of the switched converter is set to its operating voltage level.
摘要翻译： 上电复位电路，优选用于集成电路，检测电压的施加，启动锁相环，检测到电压的一个应用，但是抑制用于数字逻辑运算的所有时钟，直到达到电压稳定。 如果使用开关转换器，则在将其设置为实现期望的芯片工作电压所需的时间之前，将开关转换器的占空比保持在一定的时间。 在切换转换器的占空比被设置为其工作电压电平之后，可以分阶段释放控制其它电路的时钟。
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公开(公告)号：US06281718B1
公开(公告)日：2001-08-28
申请号：US09154241
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： H03B2100
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A switched converter uses two series connected complementary CMOS devices and has a square wave source for activating one CMOS device while deactivating the other; and a break before make circuit connected between the square wave source and said complementary CMOS devices to ensure that one device is substantially completely off before the other device turns on. The switched converter is programmable as to frequency, phase and duty cycle.
摘要翻译： 开关转换器使用两个串联的互补CMOS器件，并具有用于激活一个CMOS器件的方波源，同时使另一个CMOS器件失效; 以及在使电路连接在方波源和所述互补CMOS器件之间的断路，以确保在另一器件接通之前一个器件基本上完全截止。 开关转换器可编程为频率，相位和占空比。
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公开(公告)号：US06594284B1
公开(公告)日：2003-07-15
申请号：US09154242
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： H04J306
CPC分类号： H04J3/0682 , G01V1/22
摘要： A network arrangement uses a poll select control protocol and a loop back arrangement at each node for equalizing transmission delay from each node to a central station. Delays at each node can be adjusted to start timing in response to a broadcast signal indicating an amount of delay to be applied from the start of a synchronization interval to the beginning of transmission of data collected at the nodes. The arrangement is particularly useful in the field of data acquisition and particularly in the area of seismic sensing.
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公开(公告)号：US06546408B2
公开(公告)日：2003-04-08
申请号：US09153860
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： G06F1710
CPC分类号： H03H17/0288 , H03H17/0225 , H03H17/0275 , H03H17/0282 , H03H17/06 , H03H17/0664
摘要： A sinc filter is implemented by partitioning 1 bit wide incoming data into multibit words. The multibit words are multiplied by respective coefficient sets. Some multibit words are twisted by inverting the bit order and the multiplied using the same coefficient sets used for untwisted words. Multiplications are implemented using either look up tables or logic and the filter is implemented using only shifts and additions. The sinc filter is particularly useful applications in the field of data acquisition and particularly in the area of seismic sensing.
摘要翻译： 通过将1位宽的输入数据分成多位字来实现sinc过滤器。 多位字乘以相应的系数组。 通过使用与未扭曲字相同的系数组来反转位顺序并使乘法相乘来扭转某些多字。 使用查找表或逻辑实现乘法，并且仅使用移位和添加实现过滤器。 sinc滤波器在数据采集领域尤其是在地震检测领域尤其有用。
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16.发明授权公开(公告)号：US06891430B1
公开(公告)日：2005-05-10
申请号：US09695706
申请日：2000-10-25
申请人： Axel Thomsen , Edwin De Angel , Sherry Wu , Lei Wang , Aryesh Amar
发明人： Axel Thomsen , Edwin De Angel , Sherry Wu , Lei Wang , Aryesh Amar
摘要： A signal processing integrated circuit has having a chopper stabilized, multistage, feedforward amplifier and a delta sigma analog to digital converter. Filtering of the output of the output from the analog to digital converter comprises a sinc5 filter and a sinc3 filter. The sinc3 filter may be bypassed. A rough buffer permits quick charging of a sample and hold capacitor during part of the charge cycle and slower but more accurate charging during the remainder of the charge cycle.
摘要翻译： 信号处理集成电路具有斩波稳定的多级前馈放大器和ΔΣ模数转换器。 从模数转换器输出的输出的滤波包括一个Sinc＆lt; 5＆gt;滤波器和一个sinc＆lt; 3＆gt; 3滤波器。 可以绕过sinc <3> 3滤波器。 一个粗略的缓冲器允许在充电周期的一部分期间快速充电一个采样和保持电容器，并且在充电周期的剩余时间内可以进行更慢但更精确的充电。
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17.发明授权Techniques for implementing a rough buffer for charging a sampling capacitor 有权实现用于对采样电容器充电的粗略缓冲器的技术公开(公告)号：US06480041B1
公开(公告)日：2002-11-12
申请号：US09695702
申请日：2000-10-25
申请人： Axel Thomsen , Lei Wang
发明人： Axel Thomsen , Lei Wang
IPC分类号： H03K500
摘要： A buffer arrangement uses separate amplifiers for handling for positive going signal transitions and for negative going signal transitions respectively. A comparator detects the direction of transition and a switching element connects signal input lines in the appropriate sense to the respective amplifiers based on the output of the comparator. This permits amplifiers optimized for positive or negative going transitions to be used. The output of the amplifiers can be connected across a sampling capacitor
摘要翻译： 缓冲器配置使用单独的放大器来分别处理正向信号转换和负向信号转换。 比较器检测转换方向，并且开关元件基于比较器的输出将适当意义上的信号输入线连接到相应的放大器。 这允许使用针对正向或负向过渡进行优化的放大器。 放大器的输出可以跨采样电容连接
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18.发明申请公开(公告)号：US20090000948A1
公开(公告)日：2009-01-01
申请号：US12097409
申请日：2007-01-04
申请人： Lei Wang , Lei Wang , Min Guo , Jing Cheng
发明人： Lei Wang , Lei Wang , Min Guo , Jing Cheng
摘要： The present invention provides methods for enhancing the efficiency of cell electroporation using dielectrophoresis-assisted cell localization and uses thereof in a microfluidic biochip system. Cells are first subject to dielectrophoresis and localized to regions where the electric field intensity is high enough to render cells electroporated. The invention enhances the efficiency of in situ cell electroporation on a traditional microfluidic biochip.
摘要翻译： 本发明提供使用介电电泳辅助细胞定位提高细胞电穿孔效率的方法及其在微流体生物芯片系统中的用途。 细胞首先进行介导电泳，并定位于电场强度足以使细胞电穿孔的区域。 本发明增强了传统微流体生物芯片上原位细胞电穿孔的效率。
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公开(公告)号：US11365608B2
公开(公告)日：2022-06-21
申请号：US16148684
申请日：2018-10-01
申请人： Haining Zheng , Lei Wang , Michael W. Walker
发明人： Haining Zheng , Lei Wang , Michael W. Walker
摘要： A method of moving a string assembly within a wellbore is disclosed. In some embodiments, the method comprises moving the string assembly within the wellbore; obtaining surface data regarding at least one parameter associated with moving the string assembly within the wellbore over a range of depths; modeling the at least one parameter over the range of depths for a plurality of assumed friction factors to obtain modeled data for each assumed friction factor; calculating a derivative of the surface data over the range of depths; calculating a derivative of the modeled data over the range of depths; comparing the derivative of the surface data to the derivative of the modeled data; determining one or more local friction factors for the range of depths based on the comparison; and adjusting at least one string assembly operating parameter based on the one or more local friction factors.
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公开(公告)号：US10352099B2
公开(公告)日：2019-07-16
申请号：US15208704
申请日：2016-07-13
申请人： Benjamin Spivey , Gregory S. Payette , Darren Pais , Krishnan Kumaran , Lei Wang , Jeffrey R. Bailey , Paul E. Pastusek
发明人： Benjamin Spivey , Gregory S. Payette , Darren Pais , Krishnan Kumaran , Lei Wang , Jeffrey R. Bailey , Paul E. Pastusek
摘要： Methods for drilling a wellbore within a subsurface region and drilling assemblies and systems that include and/or utilize the methods are disclosed herein. The methods include receiving a plurality of drilling performance indicator maps, normalizing the plurality of drilling performance indicator maps to generate a plurality of normalized maps, adaptive trending of the plurality of drilling performance indicator maps to generate a plurality of trended maps, summing the plurality of trended maps to generate an objective map, selecting a desired operating regime from the objective map, and adjusting at least one drilling operational parameter of a drilling rig based, at least in part, on the desired operating regime.
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