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    • 31. 发明授权
    • Digitally controlled transmission line equalizer
    • 数字传输线均衡器
    • US06240131B1
    • 2001-05-29
    • US08884932
    • 1997-06-30
    • Yi ChengKris M. Holt
    • Yi ChengKris M. Holt
    • H03H730
    • H04B3/145H03H11/1291
    • A filter has a transfer function. The filter includes a signal input for receiving an input signal and a signal output operatively coupled to the signal input for providing an output signal. A ratio of the output signal to the input signal is equal to the filter's transfer function. The filter also includes a set of control inputs, wherein each control input in the set of control inputs is adapted for providing a digital signal. Each selectable transconductive load in a set of selectable transconductive loads has a transconductance and is operatively coupled to the signal output and a control input in the set of control inputs. The transfer function is set in response to a digital signal provided by at least one control signal in the set of control signals. Each selectable transconductive load is selected in response to at least one control signal in the set of control signals. Accordingly, the value for the transfer function is further dependent upon transconductances provided by selectable transconductive loads that are selected.
    • 滤波器具有传递函数。 滤波器包括用于接收输入信号的信号输入和可操作地耦合到信号输入的信号输出,用于提供输出信号。 输出信号与输入信号的比例等于滤波器的传递函数。 滤波器还包括一组控制输入,其中该组控制输入中的每个控制输入适于提供数字信号。 一组可选择的跨导负载中的每个可选择的导电负载具有跨导,并且可操作地耦合到信号输出和该组控制输入中的控制输入。 传递函数响应于由该组控制信号中的至少一个控制信号提供的数字信号而设定。 响应于该组控制信号中的至少一个控制信号选择每个可选择的导电负载。 因此,传递函数的值进一步取决于由选择的可选择的导电负载提供的跨导。
    • 32. 发明授权
    • Methodology for improved semiconductor process monitoring using optical
emission spectroscopy
    • 使用光发射光谱法改进半导体工艺监测的方法
    • US6046796A
    • 2000-04-04
    • US64470
    • 1998-04-22
    • Richard J. MarkleMichael J. GattoChris A. NauertYi ChengRichard B. Patty
    • Richard J. MarkleMichael J. GattoChris A. NauertYi ChengRichard B. Patty
    • H01J37/32H01L21/66G01N21/62G01N31/00
    • H01L22/26H01J37/32935H01J37/32972
    • In a semiconductor process which utilizes a plasma within a process tool chamber, a method of using optical emission spectroscopy (OES) to monitor a particular parameter of the process is disclosed. A first wavelength present in the plasma is determined which varies highly in intensity depending on the particular parameter by observing a statistically significant sample representing variations of the particular parameter. A second wavelength of chemical significance to the process is also determined which is relatively stable in intensity over time irrespective of variations of the particular parameter, also by observing a statistically significant sample representing variations of the particular parameter. These two wavelengths may be determined from test wafers and off-line physical measurements. Then, the intensity of the first and second wavelengths present in the plasma is measured on-line during normal processing within the process tool chamber, and the ratio between the first and second wavelength's respective intensities generates a numeric value which is correlated to the particular parameter. As an example, such a method may be used to generate a reliable alarm signal indicating the presence of etch stop conditions within a plasma oxide etcher, as well as to indicate the oxide etch rate.
    • 在利用处理工具室内的等离子体的半导体工艺中,公开了一种使用光发射光谱(OES)监测该工艺的特定参数的方法。 确定存在于等离子体中的第一波长,其通过观察表示特定参数的变化的统计学显着样本,根据特定参数而强度变化很大。 还确定了对于该方法具有化学意义的第二波长,其与强度随时间相对稳定,而与特定参数的变化无关,还可以通过观察表示特定参数的变化的统计学上显着的样本。 这两个波长可以从测试晶片和离线物理测量中确定。 然后,存在于等离子体中的第一波长和第二波长的强度在处理工具室内的正常处理期间在线测量,并且第一和第二波长的相应强度之间的比率产生与特定参数相关的数值 。 作为示例,可以使用这种方法来产生指示在等离子体氧化物蚀刻器内存在蚀刻停止条件的可靠报警信号,以及指示氧化物蚀刻速率。
    • 34. 发明授权
    • Cable length estimation circuit using data signal edge rate detection
and analog to digital conversion
    • 电缆长度估算电路采用数据信号边沿速率检测和模数转换
    • US5818378A
    • 1998-10-06
    • US872272
    • 1997-06-10
    • Yi ChengZhenhua LiuThomas Jefferson Ronaldue
    • Yi ChengZhenhua LiuThomas Jefferson Ronaldue
    • H04B3/04G01B7/02H03M1/36H04B10/14H03M1/00
    • G01B7/02H03M1/367
    • A cable length estimation circuit for receiving an input MLT-3 signal provided through an arbitrary length cable and providing a control signal to an equalizer indicating the estimated length of the cable enabling the equalizer to compensate for distortion of the MLT-3 signal resulting from the cable. The cable length estimation circuit includes an edge rate detection circuit for measuring the rate of change in voltage with respect to time during transitions of the MLT-3 signal to provide an indication of cable length. The cable length estimation circuit can also include a digital averaging circuit which provides an average value for signals from the edge rate detection circuit for a desired number of transitions of the MLT-3 signal. The cable length estimation can also include a baseline wander detection circuit which functions so that previous cable length estimations are provided when baseline wander is detected.
    • 一种电缆长度估计电路,用于接收通过任意长度的电缆提供的输入MLT-3信号,并向均衡器提供指示电缆的估计长度的控制信号,使得均衡器能够补偿来自所述MLT-3信号的失真 电缆。 电缆长度估计电路包括边缘速率检测电路,用于在MLT-3信号转变期间测量相对于时间的电压变化率,以提供电缆长度的指示。 电缆长度估计电路还可以包括数字平均电路,其为来自边缘速率检测电路的信号提供用于MLT-3信号的期望数量的转换的平均值。 电缆长度估计还可以包括基线漂移检测电路,其功能是使得当检测到基线漂移时提供先前的电缆长度估计。
    • 35. 发明授权
    • Multi-stage plasma reactor system with hollow cathodes for cracking carbonaceous material
    • 具有中空阴极的多级等离子体反应器系统用于裂化碳质材料
    • US09393542B2
    • 2016-07-19
    • US14361616
    • 2012-08-03
    • Xuan LiBinhang YanChangning WuYi ChengYi Guo
    • Xuan LiBinhang YanChangning WuYi ChengYi Guo
    • B01J19/08C10J3/00C10J3/48C10J3/72C10J3/78C10J3/84B01J19/24
    • B01J19/088B01J19/2415B01J2219/0809B01J2219/0869B01J2219/0871B01J2219/0894C10J3/00C10J3/485C10J3/721C10J3/78C10J3/84C10J2200/12C10J2300/093C10J2300/0946C10J2300/0959C10J2300/0976C10J2300/1238C10J2300/1807
    • Disclosed is a multi-stage plasma reactor system with hollow cathodes for cracking carbonaceous material with each stage comprising: hollow cathodes and hollow anodes cooled by recycling cooling medium or refrigerant; working gas inlet(s); inlet(s) of carbonaceous material and carrier gas as feedstock; reaction tubes in connection with the anode or cathode, in addition, the reactor system also comprises: at least one inlet(s) of quench medium located lower portion of last one of the reaction tubes; and at least one outlet(s) of quenched products and gases located on bottom or lower portion of last one of the reaction tubes, wherein chambers are formed between the first hollow cathode or the hollow cathode used as the reaction tube of any stage and the anode so as to generate plasma gas and/or electric arc therein, generated plasma gas jet fully contacts and efficiently mixes with the carbonaceous material and carrier gas as feedstock and/or volatiles caused by pyrolysis within or nearby highest temperature region of the chambers, and pyrolysis of the carbonaceous material and/or gas-phase reaction of volatiles are occurred. The present reactor system has excellent energy efficiency and higher cracked products yield.
    • 公开了一种具有用于裂化含碳材料的空心阴极的多级等离子体反应器系统,每级包括:通过循环冷却介质或制冷剂冷却的中空阴极和中空阳极; 工作气体入口; 碳质材料和载气作为原料的入口; 与阳极或阴极连接的反应管,此外,反应器系统还包括:位于反应管的最后一个的下部的至少一个骤冷介质入口; 以及位于最后一个反应管的底部或下部的至少一个淬火产物和气体出口,其中在用作任何阶段的反应管的第一空心阴极或中空阴极之间形成腔室, 阳极,以便在其中产生等离子体气体和/或电弧,所产生的等离子体气体射流完全接触并有效地与碳质材料和载体混合,作为由室内或附近的最高温度区域内或其附近的热解引起的原料和/或挥发物,以及 发生碳质材料的热解和/或挥发物的气相反应。 本反应器系统具有优异的能量效率和较高的裂化产物产率。
    • 38. 发明申请
    • HERBICIDE RESISTANCE GENE AND USE THEREOF
    • 抗除草剂基因及其用途
    • US20130338007A1
    • 2013-12-19
    • US13988377
    • 2011-11-16
    • Zhicheng ShenZhaoyang LinYi Cheng
    • Zhicheng ShenZhaoyang LinYi Cheng
    • C12N15/82
    • C12N15/8275C07K14/415C12N15/8274
    • Disclosed are a herbicide resistance gene and use thereof, wherein 1) the amino acid sequence of the encoded protein is at least more than 80% identical to SEQ ID NO:1; and 2) the encoded protein is capable of resulting in resistance to at least one of the following types of herbicides: acetolactate synthase (ALS)-inhibiting herbicides, protoporphyrinogen oxidase (PPO)-inhibiting herbicides, p-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides, photosystem II-inhibiting herbicides, and synthetic auxin herbicides. The gene disclosed herein can be introduced into a plant to obtain a transgenic plant against herbicides. A method is disclosed for obtaining an herbicide-resistant transgenic plant by using an herbicide-resistant gene. Such herbicide-resistant transgenic plant can prevent damage of herbicides to the plant, providing a convenient and economical means for selectively killing weeds.
    • 公开了除草剂抗性基因及其用途,其中1)编码蛋白质的氨基酸序列与SEQ ID NO:1至少大于80%相同; 编码的蛋白质能够导致对以下类型的除草剂中的至少一种的抗性:乙酰乳酸合酶(ALS) - 抑制性除草剂,原卟啉原氧化酶(PPO)抑制性除草剂,对羟苯基丙酮酸双加氧酶(HPPD)抑制 除草剂,光系统II抑制除草剂和合成的生长素除草剂。 本文公开的基因可以被引入植物以获得抗除草剂的转基因植物。 公开了通过使用除草剂抗性基因获得除草剂抗性转基因植物的方法。 这种除草剂抗性转基因植物可以防止除草剂对植物的损害,为选择性地杀死杂草提供了方便和经济的手段。
    • 40. 发明申请
    • Method and Apparatus for Machine-to-Machine Communication
    • 机器对机器通信的方法与装置
    • US20110154022A1
    • 2011-06-23
    • US12997468
    • 2008-06-12
    • Yi ChengVincent HuangMattias Johansson
    • Yi ChengVincent HuangMattias Johansson
    • H04L9/08
    • H04L63/062H04L9/3263H04L67/12H04L2209/805H04W4/00H04W4/70
    • According to a first aspect of the present invention there is provided a method of at least partly delegating processing of data in a machine-to-machine system to reduce computational load on a broker entity 11 while maintaining security of the data to be processed, the broker entity 11 serving as a link between a node 13 of a sensor network providing the data and an application node 12 requesting the data. In the method, at the broker entity 11, following receipt of a request for processed data from the application node 12, determining the node to provide the data to be processed, generating a data key for the data-providing node 13, generating a data-processing algorithm for processing the data in dependence upon the request, sending the data key to the data-providing node 13, and sending the data key and data-processing algorithm to a remote data-processing entity 15. At the data-providing node 13, encrypting the data using the data key and sending the encrypted data to the data-processing entity 15. At the data-processing entity 15, decrypting the data using the data key, processing the data using the data-processing algorithm, and sending the processed data to the application node 12.
    • 根据本发明的第一方面,提供了一种至少部分地委托机器对机器系统中的数据的处理以减少代理实体11上的计算负荷同时保持要处理的数据的安全性的方法, 作为提供数据的传感器网络的节点13与请求数据的应用节点12之间的链接的代理实体11。 在该方法中,在代理实体11,在从应用节点12接收到对已处理数据的请求之后,确定节点以提供要处理的数据,生成数据提供节点13的数据密钥,生成数据 处理算法,用于根据请求处理数据,将数据密钥发送到数据提供节点13,以及将数据密钥和数据处理算法发送到远程数据处理实体15.在数据提供节点 13,使用数据密钥加密数据,并将加密的数据发送到数据处理实体15.在数据处理实体15处,使用数据密钥解密数据,使用数据处理算法处理数据,并发送 处理的数据到应用节点12。