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1. 发明申请

WO2008020231A2 METHODS OF PROCESSING ENCODER SIGNALS 审中-公开
标题翻译：处理编码器信号的方法
公开(公告)号：WO2008020231A2
公开(公告)日：2008-02-21
申请号：PCT/GB2007003148
申请日：2007-08-17
申请人： TRW LTD , DIXON CHRISTOPHER DAVID , WILLIAMS CONNEL BRETT , REEVE JOHN MARTIN , LI JIANG
发明人： DIXON CHRISTOPHER DAVID , WILLIAMS CONNEL BRETT , REEVE JOHN MARTIN , LI JIANG
IPC分类号： G01D5/245
CPC分类号： G01D5/2451 , G01D5/145 , G01D5/24452 , G01D5/2448 , G01D5/2449 , G01P3/481 , G01P3/487
摘要： A method of processing signals in a rotary encoder of the kind which comprises at least one annular track of encoding regions arranged as an alternating pattern of first encoding regions and second encoding regions, comprises providing a first detector at a first fixed position which is arranged to produce a first alternating output signal as the track of encoding regions rotates about its axis past the detector, the alternating signal comprising a series of transitions between a first state corresponding to the detector being aligned with a first encoding region and a second state corresponding to the detector being aligned with second encoding region; providing a second detector at a second fixed position which is arranged to produce a first alternating output signal as the track of encoding regions rotates about its axis past the detector, the alternating signal comprising a series of transitions between a first state corresponding to the detector being aligned with a first encoding region and a second state corresponding to the detector being aligned with second encoding region; identifying a usable pair of transitions in the first and second signals comprising a transition of the first signal from the first state to the second state followed by a transition in the second signal from the first state to the second state without in the intervening period having changed from the second state to the first state; measuring the elapsed time between the transitions of the identified usable pair, and determining the angular velocity by combining the elapsed time with the spacing between the first and second detectors.
摘要翻译：一种在旋转编码器中处理信号的方法，所述旋转编码器包括被布置为第一编码区域和第二编码区域的交替图案的编码区域的至少一个环形轨道，包括：在第一固定位置处提供第一检测器，当编码区域的轨道围绕其轴线旋转经过检测器时产生第一交替输出信号，所述交替信号包括在与所述检测器对应的第一状态与第一编码区域对齐和与所述第一编码区域对应的第二状态之间的一系列过渡，检测器与第二编码区域对齐; 在第二固定位置处提供第二检测器，所述第二检测器被布置成随着编码区域的轨道围绕其轴线旋转经过检测器而产生第一交变输出信号，所述交变信号包括在与检测器相对应的第一状态之间的一系列转变，与对应于第二编码区域的第一编码区域和第二状态对齐; 识别第一和第二信号中可用的一对转变，包括第一信号从第一状态到第二状态的转变，接着是第二信号从第一状态到第二状态的转变，而中间时段没有改变从第二状态到第一状态; 测量所识别的可用对的转变之间的经过时间，以及通过将经过的时间与第一和第二检测器之间的间隔组合来确定角速度。

2. 发明申请

WO2007072025A3 ELECTRIC MOTOR CONTROL 审中-公开
标题翻译：电动机控制
公开(公告)号：WO2007072025A3
公开(公告)日：2007-08-09
申请号：PCT/GB2006004870
申请日：2006-12-21
申请人： TRW LTD , WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , LI JIANG
发明人： WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , LI JIANG
IPC分类号： H02P21/14 , H02P6/18
CPC分类号： H02P6/182 , B62D5/046 , B62D5/065 , H02P6/185 , H02P21/18
摘要： A control system for an electric motor is arranged to determine the position of the motor from at least one electrical parameter by means of a position determining algorithm which is reliant on movement of the motor to determine the motor position, and to start up the motor from rest by applying voltages to the motor that are independent of the position of the motor.
摘要翻译：用于电动机的控制系统被布置成借助于位置确定算法从至少一个电参数确定电动机的位置，该位置确定算法依赖于电动机的移动以确定电动机位置并且从通过向电机施加独立于电机位置的电压来进行休息。

3. 发明申请

WO2008110817A3 DETERMINING AVERAGE CURRENT DRAWN BY A MOTOR 审中-公开
标题翻译：确定电机的平均电流
公开(公告)号：WO2008110817A3
公开(公告)日：2009-08-20
申请号：PCT/GB2008000898
申请日：2008-03-14
申请人： TRW LTD , LI JIANG
发明人： LI JIANG
IPC分类号： B62D5/04 , H02P6/00
CPC分类号： B62D5/046 , B62D5/0481 , H02P6/28 , Y02E20/16
摘要： A method of determining the average current (I) drawn by an electric motor (12), the motor comprising a plurality of phases (26a, 26b, 26c), the method comprising: driving each phase of the motor with cyclic pulse width modulated (PWM) drive signals having a first state and a second state, and a duty ratio (d 1 , d 2 , d 3 ) indicative of the ratio of time spent in the first to second states within a cycle, determining the current flowing through each phase (i 1 , i 2 , i 3 ) at an instant in the cycle; and determining the average current drawn by the motor over at least one cycle by combining the currents flowing through each phase with the duty ratios for each phase. The method may be embodied in a combination of a motor (12) and a drive circuit (6) for the motor, such as can be used in an Electric Power Assisted Steering (EPAS) system.
摘要翻译：一种确定由电动机（12）绘制的平均电流（I）的方法，所述电动机包括多相（26a，26b，26c），该方法包括：用循环脉宽调制（ PWM）驱动信号，以及表示在一个周期内在第一至第二状态中花费的时间的比率的占空比（d 1，d 2，d 3），确定流过每个状态的电流相位（i 1，i 2，i 3）; 以及通过将流过每相的电流与每相的占空比组合来确定由至少一个循环所产生的电动机的平均电流。该方法可以体现在用于电动机的电动机（12）和驱动电路（6）的组合中，例如可以用于电动助力转向（EPAS）系统中。

4. 发明申请

WO2004022570A8 PREPARATION OF SOLID AMMONIUM GLYPHOSATE USING ORGANIC SOLVENT IN EXTRACTION 审中-公开
标题翻译：使用有机溶剂萃取的固体乙酸铵的制备
公开(公告)号：WO2004022570A8
公开(公告)日：2006-12-21
申请号：PCT/CN0300747
申请日：2003-09-04
申请人： ZHEJIANG XINAN CHEMICAL IND GR , WANG WEI , REN BUFAN , ZHOU SHUGUANG , BAO MIN , ZHENG HONGCHAO , ZHANG BAIQING , LI JIANG
发明人： WANG WEI , REN BUFAN , ZHOU SHUGUANG , BAO MIN , ZHENG HONGCHAO , ZHANG BAIQING , LI JIANG
IPC分类号： C07F9/38
CPC分类号： C07F9/3813
摘要： A method of producing ammonium glyphosate suitable for preparation of water-soluble solid preparation through a gas-liquid-solid reaction system and an extraction with organic solvent is that to a reactor with a stirrer, glyphosate acid and water are charged and then ammonia gas is fed for reaction. After the reaction, ammoniua glyphosate aqueous is formed. Water-soluble organic solvent, such as methanol and/or ethanol and/or formal, is added to the aqueous to decrease the solvability of ammonium glyphosate in the system and separate out the ammonium glyphosate crystal. Solid ammonium glyphosate is obtained after filtrating or drying the crystal more. The organic solvent can be recycled and used repeatedly by distillation and the residual solution can be returned to react with ammonia gas or be prepare the ammonium glyphosate salt solution.
摘要翻译：通过气 - 液 - 固反应系统制备水溶性固体制剂的草甘膦铵铵和用有机溶剂萃取的方法是向具有搅拌器，草甘膦酸和水的反应器中加入氨气，然后加入氨气喂食反应。反应后，形成氨基草甘膦水溶液。将水溶性有机溶剂如甲醇和/或乙醇和/或正式加入到水中以降低系统中草铵膦的可溶性，并分离出草甘膦铵晶体。过滤或干燥晶体后获得固体草甘膦。有机溶剂可以循环使用，通过蒸馏反复使用，残余溶液可以与氨气反应或制备草甘膦铵盐溶液。

5. 发明申请

WO2015163954A3 DUAL-FREQUENCY OPTICAL SOURCE 审中-公开
标题翻译：双频光源
公开(公告)号：WO2015163954A3
公开(公告)日：2016-01-28
申请号：PCT/US2015012962
申请日：2015-01-26
申请人： CALIFORNIA INST OF TECHN , NAT INST OF STANDARDS & TECH , VAHALA KERRY , LI JIANG , DIDDAMS SCOTT , YI XU , LEE HANSUEK
发明人： VAHALA KERRY , LI JIANG , DIDDAMS SCOTT , YI XU , LEE HANSUEK
IPC分类号： H01S3/091
CPC分类号： H04B10/2507 , H03B17/00 , H03L7/08 , H03L7/16 , H04B10/2504 , H04B10/2575 , H04B10/503 , H04B2210/006 , H04L7/0075 , H04L7/0091
摘要： A dual-frequency optical source comprises: (a) first and second pump laser sources arranged to generate optical pump power at respective first and second pump laser frequencies v pump1 and v pump2 ; and (b) an optical resonator characterized by a Brillouin shift frequency v B and a free spectral range that is substantially equal to an integer submultiple of the Brillouin shift frequency. Each one of the first and second pump laser sources is frequency-locked to a corresponding resonant optical mode of the optical resonator. First and second optical output signals of the dual-frequency optical reference source at respective first and second output frequencies v 1 =v pump1 -v B and v 2 =v pump2 -v B comprise stimulated Brillouin laser output generated by simultaneous optical pumping of the optical resonator by the first and second pump laser sources, respectively. An output difference frequency v 2-v 1 is greater than about 300 GHz.
摘要翻译：双频光源包括：（a）第一和第二泵浦激光源，被布置成在相应的第一和第二泵浦激光频率v泵1和v泵2处产生光泵浦功率; 和（b）以布里渊移动频率v B为特征的光学谐振器和基本上等于布里渊移动频率的整数倍的自由光谱范围。第一和第二泵浦激光源中的每一个被频率锁定到光学谐振器的相应的谐振光学模式。在相应的第一和第二输出频率v 1 = v泵1 -v B和v 2 = v pump 2 -v B处的双频光学参考源的第一和第二光学输出信号包括通过同时光学泵浦产生的受激布里渊激光输出光学谐振器分别由第一和第二泵激光源。输出差频率v 2 -v 1大于约300GHz。

6. 发明申请

WO2011005829A3 UNEQUAL ERROR PROTECTION FOR EMBEDDED CODING OF BOREHOLE IMAGES AND VARIABLE-QUALITY TELEMETRY CHANNELS 审中-公开
标题翻译：钻井图像嵌入式编码和变质遥测信道的不等误差保护
公开(公告)号：WO2011005829A3
公开(公告)日：2011-04-21
申请号：PCT/US2010041168
申请日：2010-07-07
申请人： BAKER HUGHES INC , LI JIANG
发明人： LI JIANG
IPC分类号： E21B47/12 , E21B47/18 , G01V1/48
CPC分类号： E21B47/182
摘要： An unequal error protection scheme for borehole telemetry. The scheme, when applied to imaging applications, assigns more protection for the more significant bits and less protection for less significant bits. When applied to communication using channels of different quality, more protection is provided for channels of poor quality.
摘要翻译：一种用于钻孔遥测的不等差错保护方案。该方案应用于成像应用时，会为更重要的位分配更多的保护，并减少对低位有效的保护。当应用于使用不同质量信道的通信时，为质量差的信道提供更多保护。

7. 发明申请

WO2005108479A3 ACETAL-BASED COMPOSITIONS 审中-公开
标题翻译：基于ACETAL的组合物
公开(公告)号：WO2005108479A3
公开(公告)日：2006-12-14
申请号：PCT/US2005011685
申请日：2005-04-05
申请人： MILLIKEN & CO , XIE CHUNPING , LI JIANG , RIETH LEE R , SMITH JASON A , ANDERSON JOHN D O , WAYBRIGHT SHANE M , BURKHART BRIAN M
发明人： XIE CHUNPING , LI JIANG , RIETH LEE R , SMITH JASON A , ANDERSON JOHN D O , WAYBRIGHT SHANE M , BURKHART BRIAN M
IPC分类号： C07D323/04 , C07D319/06 , C07D321/00 , C07D493/04 , C08K5/00 , C08K5/15 , C08K5/1575
CPC分类号： C07D319/06 , C07D493/04 , C08K5/0083 , C08K5/1575
摘要： An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. Co-additives may also be employed. Several aryl structures may reside upon the hydrocarbon chain backbone. One structure of such an acetal-based composition is a modified sorbitol with one or more aryl groups and at least one substituted group upon a terminal carbon in the chain.
摘要翻译：公开了可用作成核剂，胶凝剂，增稠剂或澄清剂的基于缩醛的组合物。组合物可以以许多不同形式合成或提供，包括由碳水化合物形成的多碳二缩醛。一旦合成，该化合物可以用作塑料组合物中的添加剂，例如（例如）聚丙烯共聚物。也可以使用共添加剂。几个芳基结构可以位于烃链骨架上。这种基于缩醛的组合物的一种结构是在链中的末端碳上具有一个或多个芳基和至少一个取代基的改性山梨糖醇。

8. 发明申请

WO2014146064A2 FRICTION REDUCING POLYMERS 审中-公开
标题翻译：摩擦减少聚合物
公开(公告)号：WO2014146064A2
公开(公告)日：2014-09-18
申请号：PCT/US2014030950
申请日：2014-03-18
申请人： KEMIRA OYJ , LI JIANG , ROBINSON RONALD , WATSON PHILIP , JACKSON LOGAN
发明人： LI JIANG , ROBINSON RONALD , WATSON PHILIP , JACKSON LOGAN
IPC分类号： C09K8/60
CPC分类号： C09K8/68 , C08F8/12 , C08F2810/50 , C09K8/035 , C09K2208/28 , C09K2208/34 , E21B43/20 , E21B43/26 , C08F220/56 , C08F218/08 , C08F220/06 , C08F216/06
摘要： Described herein are friction reducing polymers comprising two or more recurring units wherein at least one recurring unit is an acrylic acid or acrylamide monomer and at least one recurring unit is a vinyl monomer selected from a vinyl alcohol, a vinyl ester, and a vinyl ether.
摘要翻译：本文描述的是包含两个或更多个重复单元的减摩聚合物，其中至少一个重复单元是丙烯酸或丙烯酰胺单体，并且至少一个重复单元是选自乙烯醇，乙烯基酯和乙烯基醚的乙烯基单体。

9. 发明申请

WO2007095153B1 SYSTEM AND METHOD FOR PUMP NOISE CANCELLATION IN MUD PULSE TELEMETRY 审中-公开
标题翻译：用于泥浆脉冲遥测中泵浦噪声消除的系统和方法
公开(公告)号：WO2007095153B1
公开(公告)日：2007-10-25
申请号：PCT/US2007003643
申请日：2007-02-09
申请人： BAKER HUGHES INC , RECKMANN HANNO , LI JIANG
发明人： RECKMANN HANNO , LI JIANG
IPC分类号： E21B47/18
CPC分类号： E21B47/18
摘要： Pump noise in a mud-pulse telemetry system is reduced based on analysis of the frequency characteristics of the noise generated by one or more pumps. Least mean- squares filtering may be done. Alternatively, the frequency domain analysis of the pump frequencies is fine-tuned in the time domain and a synthetic timing signal is used for the filtering.
摘要翻译：基于对由一个或多个泵产生的噪声的频率特性的分析，减少泥浆脉冲遥测系统中的泵噪声。最小均方滤波可以完成。或者，泵浦频率的频域分析在时域中被微调，并且合成定时信号被用于滤波。

10. 发明申请

WO2005111134A3 METHOD OF NUCLEATING A POLYOLEFIN COMPOSITION WITH ACETAL-BASED COMPOUNDS 审中-公开
标题翻译：用基于乙酸的化合物对聚烯烃组合物的制备方法
公开(公告)号：WO2005111134A3
公开(公告)日：2007-02-22
申请号：PCT/US2005011686
申请日：2005-04-05
申请人： MILLIKEN & CO , XIE CHUNPING , LI JIANG , RIETH LEE R , SMITH JASON A , ANDERSON JOHN D O , WAYBRIGHT SHANE M , BURKHART BRIAN M
发明人： XIE CHUNPING , LI JIANG , RIETH LEE R , SMITH JASON A , ANDERSON JOHN D O , WAYBRIGHT SHANE M , BURKHART BRIAN M , SCRIVENS WALTER A
IPC分类号： C08K5/1575 , C07D319/06 , C07D321/00 , C07D493/04 , C08K5/00 , C08K5/15
CPC分类号： C07D319/06 , C07D493/04 , C08K5/0083 , C08K5/1575
摘要： An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. Co-additives may also be employed. Several aryl structures may reside upon the hydrocarbon chain backbone. One structure of such an acetal-based composition is a modified sorbitol with one or more aryl groups and at least one substituted group upon a terminal carbon in the chain.
摘要翻译：公开了可用作成核剂，胶凝剂，增稠剂或澄清剂的基于缩醛的组合物。组合物可以以许多不同形式合成或提供，包括由碳水化合物形成的多碳二缩醛。一旦合成，该化合物可以用作塑料组合物中的添加剂，例如（例如）聚丙烯共聚物。也可以使用共添加剂。几个芳基结构可以位于烃链骨架上。这种基于缩醛的组合物的一种结构是在链中末端碳上具有一个或多个芳基和至少一个取代基的改性山梨糖醇。

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