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1. 发明申请

WO2019213401A1 NARROW-LINEWIDTH MICROCAVITY BRILLOUIN LASER WITH SUPPRESSED TEMPERATURE FLUCTUATIONS 审中-公开
公开(公告)号：WO2019213401A1
公开(公告)日：2019-11-07
申请号：PCT/US2019/030407
申请日：2019-05-02
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , LOH, William , JUODAWLKIS, Paul, William , YEGNANARAYANAN, Siva
发明人： LOH, William , JUODAWLKIS, Paul, William , YEGNANARAYANAN, Siva
IPC分类号： G01B9/02 , G01J9/00 , G01J9/02 , G02F1/00 , G02F1/01 , G02F1/21 , G02F1/35
摘要： Ultrastable lasers serve as the backbone for advanced scientific experiments and enable atomic spectroscopy and laser interferometry at high levels of precision. But is not clear how to realize an ultrastable laser that is compact and portable for field use. An ultrastable laser source should be insensitive to both short- and long-term fluctuations in temperature, which ultimately broaden the laser linewidth and cause drift in the laser's center frequency. Fortunately, using a large mode-volume optical resonator, which suppresses the resonator's fast thermal fluctuations, together with the stimulated Brillouin scattering (SBS) optical nonlinearity presents a powerful combination that enables the ability to lase with an ultra-narrow linewidth of 20 Hz. The laser's long-term temperature drift is compensated by using the narrow Brillouin line to sense minute changes in the resonator's temperature (e.g., changes of 85 nK). The precision of this temperature measurement enables the stabilization of resonators against environmental perturbations.

2. 发明申请

WO2015017653A1 OPTOELECTRONIC FILTER 审中-公开
标题翻译：光电滤波器
公开(公告)号：WO2015017653A1
公开(公告)日：2015-02-05
申请号：PCT/US2014/049141
申请日：2014-07-31
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： LOH, William , YEGNANARAYANAN, Siva , RAM, Rajeev, J. , JUODAWLKIS, Paul, William
IPC分类号： G02F1/035
CPC分类号： G02F1/2255 , G02F1/035 , G02F1/21 , G02F2001/212
摘要： An optoelectronic filter having at least one input and an output includes a modulator circuit having at least first and second inputs with a first one of the modulator circuit inputs adapted to couple to a respective one of the at least one input of the optoelectronic filter. The modulator circuit receives at least a first radio frequency (RF) signal having a first power level and a second RF signal having a second, different power level at the first one of the modulator circuit inputs and in response thereto generates a modulated signal at an output thereof. The first RF signal is suppressed relative to the second RF signal in the modulated signal. The optoelectronic filter additionally includes a light source adapted to couple to a second one of the modulator circuit inputs. A corresponding method is also provided.
摘要翻译：具有至少一个输入和输出的光电滤波器包括具有至少第一和第二输入的调制器电路，其中第一个调制器电路输入适于耦合到光电滤波器的至少一个输入端中的相应一个输入端。调制器电路在调制器电路输入的第一个处接收至少具有第一功率电平的第一射频（RF）信号和具有第二不同功率电平的第二RF信号，并响应于此产生调制信号输出。第一RF信号相对于调制信号中的第二RF信号被抑制。光电子滤波器还包括适于耦合到第二调制器电路输入的光源。还提供了相应的方法。

3. 发明申请

WO2009032403A1 HYDRAULIC FLUID COMPOSITIONS AND PREPARATION THEREOF 审中-公开
标题翻译：液压油组合物及其制备方法
公开(公告)号：WO2009032403A1
公开(公告)日：2009-03-12
申请号：PCT/US2008/070059
申请日：2008-07-15
申请人： CHEVRON U.S.A. INC. , LOH, William , ROSENBAUM, John, M. , BERTRAND, Nancy, J. , LEMAY, Patricia, V.
发明人： LOH, William , ROSENBAUM, John, M. , BERTRAND, Nancy, J. , LEMAY, Patricia, V.
IPC分类号： C10M107/02 , C10M169/04 , C10N40/08
CPC分类号： C10M107/02 , C10M169/04 , C10M2205/173 , C10M2209/084 , C10N2220/021 , C10N2220/022 , C10N2220/10 , C10N2220/13 , C10N2230/02 , C10N2230/10 , C10N2230/36 , C10N2230/40 , C10N2230/74 , C10N2240/08
摘要： A hydraulic fluid composition having excellent seal compatibility is prepared from an isomerized base oil is provided. The composition comprising (i) 80 to 99.999 wt. % of a lubricating base oil having consecutive numbers of carbon atoms, less than 10 wt% naphthenic carbon by n-d-M, less than 0.10 wt. % olefins and less than 0.05 wt. % aromatics, a molecular weight of greater than 600 by ASTM D 2503-92 (Reapproved 2002), a wt% total molecules with cycloparaffinic functionality greater than 25 and a ratio of molecules with monocycloparaffinic functionality to molecules with multicyloparaffinic functionality greater than 10; and (ii) optionally from 0.001 to 6 wt % of a viscosity modifier; and (iii) 0-10 wt % of at least an additive package. When used in operations, the composition results in an average volume change in a rubber seal of less than 3% and an average hardness change in the rubber seal of less than 1 pts. when tested under ASTM D 471-06 (SRE NBR1 at 100oC., 168 hours).
摘要翻译：由异构化的基础油制备具有优异的密封相容性的液压组合物。该组合物包含（i）80至99.999重量％％的具有连续数目的碳原子的润滑基础油，小于10重量％的环烷碳，n-d-M，小于0.10重量％％的烯烃和小于0.05wt。％芳族化合物，通过ASTM D 2503-92（重新批准的2002年）的分子量大于600，具有大于25的环烷烃官能度的wt％总分子和具有多环烷烃官能团的分子与具有多环烷烃官能度的分子的比例大于10; 和（ii）任选0.001至6重量％的粘度调节剂; 和（iii）0-10重量％的至少一种添加剂包。当在操作中使用时，组合物导致橡胶密封件的平均体积变化小于3％，橡胶密封件的平均硬度变化小于1点。当根据ASTM D 471-06（SRE NBR1，100℃，168小时）测试时。

4. 发明申请

WO2012015824A3 APPLICATION-SPECIFIC FINISHED LUBRICANT COMPOSITIONS COMPRISING A BIO-DERIVED ESTER COMPONENT AND METHODS OF MAKING SAME 审中-公开
公开(公告)号：WO2012015824A3
公开(公告)日：2012-02-02
申请号：PCT/US2011/045389
申请日：2011-07-26
申请人： CHEVRON U.S.A. INC. , KRAMER, David Christian , KETTERER, Nicole A. , KNOTTS, Nathan Todd , OKAZAKI, Mark Edward , MILLER, Stephen Joseph , ELOMARI, Saleh A. , SHAH, Ravindra , HEE, Allan George , LOH, William , ZHOU, Zhen , BAER, Randolph Albert , ZAKARIAN, John A. , FAGAN, Gian Lawrence , BERET, Samil
发明人： KRAMER, David Christian , KETTERER, Nicole A. , KNOTTS, Nathan Todd , OKAZAKI, Mark Edward , MILLER, Stephen Joseph , ELOMARI, Saleh A. , SHAH, Ravindra , HEE, Allan George , LOH, William , ZHOU, Zhen , BAER, Randolph Albert , ZAKARIAN, John A. , FAGAN, Gian Lawrence , BERET, Samil
IPC分类号： C10M101/04 , C10M169/04 , C10M171/00 , C10G3/00 , C07C4/00
摘要： The present invention is generally directed to methods of making application-specific finished lubricant compositions comprising bio-derived diester species. In some embodiments, bio-derived fatty acid moieties are reacted with Fischer-Tropsch/gas-to-liquids reaction products and/or by-products (e.g., gas-to-liquids-produced α-olefins) to yield bio-derived diester species that can then be selectively blended with base oil and one or more additive species to yield an application-specific finished lubricant product having a biomass-derived component.

5. 发明申请

WO2007075831A3 LUBRICATING OIL WITH HIGH OXIDATION STABILITY 审中-公开
公开(公告)号：WO2007075831A3
公开(公告)日：2007-07-05
申请号：PCT/US2006/048677
申请日：2006-12-19
申请人： CHEVRON U.S.A. INC. , LOH, William , ROSENBAUM, John , BERTRAND, Nancy, J. , LEMAY, Patricia , FRAZIER, Rawls , OKAZAKI, Mark, E.
发明人： LOH, William , ROSENBAUM, John , BERTRAND, Nancy, J. , LEMAY, Patricia , FRAZIER, Rawls , OKAZAKI, Mark, E.
IPC分类号： C10G71/00 , C10G35/00
摘要： A lubricating oil (made from Group III base oil having a sequential number of carbon atoms) having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40°C from 19.8 cSt to 748 cSt. A lubricating oil having a high Vl and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an antioxidant additive concentrate and c) no Vl improver, A process comprising: a) hydroisomerization dewaxing of a waxy feed, b) fractionating the produced base oil, c) selecting a fraction having a Vl greater than 150, and a high level of molecules with cycloparaffin ic functionality or a low traction coefficient, and d) blending the fraction with an antioxidant additive concentrate. Also, a method of improving the oxidation stability of a lubricating oil.

6. 发明申请

WO2009148458A1 SYSTEMS AND METHODS FOR LATCH BASED ANALOG TO DIGITAL CONVERSION 审中-公开
标题翻译：基于LATCH的模拟到数字转换的系统和方法
公开(公告)号：WO2009148458A1
公开(公告)日：2009-12-10
申请号：PCT/US2008/066074
申请日：2008-06-06
申请人： LSI CORPORATION , CHMELAR, Erik , ITO, Choshu , LOH, William
发明人： CHMELAR, Erik , ITO, Choshu , LOH, William
IPC分类号： H03M1/00
CPC分类号： H03M1/1215 , H03M1/002 , H03M1/361
摘要： Various embodiments of the present invention provide systems and methods for analog to digital conversion. For example, a latch based analog to digital converter is disclosed that includes a first interleave with a set of comparators, a selector circuit and a latch. The set of comparators is operable to compare an analog input with respective reference voltages, and is synchronized to a clock phase. The selector circuit is operable to select an output of one of the set of comparators based at least in part on a selector input. A first interleave output is derived from the selected output. The latch receives a second interleave output from a second interleave and is transparent when the clock phase is asserted. The selector input includes an output of the latch.
摘要翻译：本发明的各种实施例提供了用于模数转换的系统和方法。例如，公开了一种基于锁存器的模数转换器，其包括与一组比较器的第一交错，选择器电路和锁存器。该组比较器可操作以将模拟输入与相应的参考电压进行比较，并且与时钟相位同步。选择器电路可操作以至少部分地基于选择器输入来选择该组比较器之一的输出。从所选择的输出中导出第一交错输出。锁存器接收来自第二交错的第二交错输出，并且在时钟相位被断言时是透明的。选择器输入包括锁存器的输出。

7. 发明申请

WO2009148457A1 SYSTEMS AND METHODS FOR SYNCHRONOUS, RETIMED ANALOG TO DIGITAL CONVERSION 审中-公开
标题翻译：用于同步的系统和方法，用于数字转换的模拟
公开(公告)号：WO2009148457A1
公开(公告)日：2009-12-10
申请号：PCT/US2008/066060
申请日：2008-06-06
申请人： LSI CORPORATION , ITO, Choshu , CHMELAR, Erik , LOH, William
发明人： ITO, Choshu , CHMELAR, Erik , LOH, William
IPC分类号： H03M1/00
CPC分类号： H03M1/1215 , H03M1/002 , H03M1/361
摘要： The present invention provide systems and methods for analog to digital conversion A retimed analog to digital converter is disclosed that includes a first and second set of sub-level interleaves The first set of sub-level interleaves includes a first sub-level Interleave with a first set of comparators synchronized to a first clock phase, and a second sub-level interleave with a second set of comparators synchronized to a second clock phase The second set of sub-level interleaves includes a third sub-level interleave with a third set of comparators synchronized to a third clock phase, and a fourth sub-level interleave with a fourth set of comparators synchronized to a fourth clock phase A global interleave selects one of the first set of comparators based on an output from the second set of sub-level interleaves.
摘要翻译：本发明提供用于模数转换的系统和方法公开了一种重新定时的模数转换器，其包括第一和第二组子电平交织。第一组子电平交织包括第一子电平交织，第一子电平交织与第一时钟相位同步的一组比较器和与第二时钟相位同步的第二组比较器的第二子电平交织。第二组子电平交织包括与第三组比较器的第三子电平交织与第三时钟相位同步的第四子电平交错以及与第四时钟相位同步的第四组比较器的第四子电平交织全局交错基于来自第二组子电平交织的输出选择第一组比较器之一。

8. 发明申请

WO2007075830A2 ASHLESS LUBRICATING OIL WITH HIGH OXIDATION STABILITY 审中-公开
标题翻译：无氧润滑油具有高氧化稳定性
公开(公告)号：WO2007075830A2
公开(公告)日：2007-07-05
申请号：PCT/US2006/048676
申请日：2006-12-19
申请人： CHEVRON U.S.A. INC. , BERTRAND, Nancy, J. , LOH, William , ROSENBAUM, John , LEMAY, Patricia , FRAZIER, Rawls , OKAZAKI, Mark, E.
发明人： BERTRAND, Nancy, J. , LOH, William , ROSENBAUM, John , LEMAY, Patricia , FRAZIER, Rawls , OKAZAKI, Mark, E.
IPC分类号： C10L1/22
CPC分类号： C10M169/04 , C10M107/02 , C10M2203/1025 , C10M2203/1065 , C10M2205/173 , C10M2207/026 , C10M2209/084 , C10M2215/062 , C10M2215/064 , C10M2215/065 , C10M2219/068 , C10M2219/082 , C10M2219/087 , C10M2223/045 , C10N2220/02 , C10N2220/022 , C10N2220/025 , C10N2230/06 , C10N2230/10 , C10N2230/12 , C10N2240/06 , C10N2240/08
摘要： An ashless hydraulic fluid or paper machine oil having a Vl between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40°C from 19.8 cSt to 748 cSt. An ashless hydraulic fluid or paper machine oil having a high Vl and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an ashless antioxidant additive concentrate, and c) low amount of Vl improver. A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high Vl, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an ashless antioxidant. Also, a method of improving the oxidation stability of an ashless hydraulic fluid or paper machine oil.
摘要翻译：具有155和300之间的VI，RPVOT大于680分钟的无灰液压油或造纸机油，以及在40℃下的运动粘度为19.8cSt至748cSt。具有高VI和高RPVOT的无灰液压油或造纸机油包括：a）具有连续数目的碳原子的III族基础油和定义的环烷烃组成或低牵引系数，b）无灰抗氧化添加剂浓缩物，以及 c）低量的Vl改良剂。一种制备无灰液压油或造纸机油的方法，其包括a）加氢异构化脱蜡，b）分馏，c）选择具有非常高的VI的级分和具有环烷烃官能度或低牵引系数的高水平分子，d ）将该级分与无灰抗氧化剂混合。另外，提高无灰液压油或造纸机油的氧化稳定性的方法。

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