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公开(公告)号：US08373502B1
公开(公告)日：2013-02-12
申请号：US13237922
申请日：2011-09-20
申请人： Xiaoming Chen , Shuzuo Lou , Gang Qian , Wai Po Wong
发明人： Xiaoming Chen , Shuzuo Lou , Gang Qian , Wai Po Wong
CPC分类号： H03K3/0231 , H03H11/1291
摘要： A relaxation oscillator for generating a first and a second oscillation signals, comprising: a reference-voltage providing circuit for providing a high and a low reference voltages; switches for directing the high and low reference voltages to inputs of a transconductance amplifier and a non-inverting input of a comparator; the transconductance amplifier for generating an output current with a value determined by its transconductance value, controlled by an input tuning voltage, and multiplied by its inputs' voltage difference; a capacitor connecting between the transconductance amplifier output and ground; and the comparator for generating a first and a second digital signals; wherein the first and second digital signals are digital control signals to the switches, and the first and second oscillation signal of the relaxation oscillator respectively; wherein the oscillation frequency of the relaxation oscillator is independent of the reference voltages, achieving accurate frequency turning, and simplifying the reference-voltage providing circuit.
摘要翻译： 一种用于产生第一和第二振荡信号的张弛振荡器，包括：用于提供高和低参考电压的参考电压提供电路; 用于将高参考电压和低参考电压引导到比较器的跨导放大器和非反相输入端的开关; 跨导放大器，用于产生具有由其跨导值确定的值的输出电流，由输入调谐电压控制，并乘以其输入的电压差; 连接跨导放大器输出和地之间的电容器; 以及用于产生第一和第二数字信号的比较器; 其中所述第一和第二数字信号分别是所述开关的数字控制信号，以及所述弛豫振荡器的第一和第二振荡信号; 其中张弛振荡器的振荡频率与参考电压无关，实现精确的频率转动，并简化了参考电压提供电路。
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公开(公告)号：USD1024658S1
公开(公告)日：2024-04-30
申请号：US29919350
申请日：2023-12-04
申请人： Xiaoming Chen
设计人： Xiaoming Chen
摘要： FIG. 1 is a perspective view of an infuser, showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines showing of the infuser is for the purpose of illustrating portions of the article and forms no part of the claimed design.-
公开(公告)号：US11328898B2
公开(公告)日：2022-05-10
申请号：US17305514
申请日：2021-07-08
申请人： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
发明人： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
IPC分类号： H01J37/244 , H01J37/28 , H01J37/22
摘要： The present invention provides a digital high-resolution detector for detecting X-ray, UV light or charged particles. In various embodiments, the digital detector comprises an array of CMOS or CCD pixels and a layer of conversion material on top of the array designed for converting incident X-ray, UV light or charged particles into photons for CMOS or CCD sensors to capture. The thin and high-resolution detector of the invention is particularly useful for monitoring and aligning beams in, and optimizing system performance of, an apparatus of charged-particle beam e.g. an electron microscope.
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公开(公告)号：US20220108443A1
公开(公告)日：2022-04-07
申请号：US17452999
申请日：2021-10-31
申请人： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
发明人： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
摘要： A rapid and automatic virus imaging and analysis system includes (i) electron optical sub-systems (EOSs), each of which has a large field of view (FOV) and is capable of instant magnification switching for rapidly scanning a virus sample; (ii) sample management sub-systems (SMSs), each of which automatically loads virus samples into one of the EOSs for virus sample scanning and then unloads the virus samples from the EOS after the virus sample scanning is completed; (iii) virus detection and classification sub-systems (VDCSs), each of which automatically detects and classifies a virus based on images from the EOS virus sample scanning; and (iv) a cloud-based collaboration sub-system for analyzing the virus sample scanning images, storing images from the EOS virus sample scanning, and storing and analyzing machine data associated with the EOSs, the SMSs, and the VDCSs.
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公开(公告)号：US20190186688A1
公开(公告)日：2019-06-20
申请号：US16198376
申请日：2018-11-21
申请人： Xiaoming Chen
发明人： Xiaoming Chen
摘要： A framework for installation of coupling components, comprising: at least one mounting rail arranged on at least one of positions above and below the framework and used for installation of coupling components, wherein the mounting rail extends along a length direction of the framework; a locking device arranged at an end portion of the framework; and one or more mounting holes distributed in a side surface of the framework and used for installation of coupling components; wherein the framework is designed as a rectangular frame structure, an inner frame of the framework is provided with a cavity passing through along the length direction thereof, and the mounting hole passes through the cavity.
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公开(公告)号：US20190186515A1
公开(公告)日：2019-06-20
申请号：US16198358
申请日：2018-11-21
申请人： Xiaoming Chen
发明人： Xiaoming Chen
CPC分类号： F16B2/185 , F16C11/0661 , F16C11/10 , F16M2200/021
摘要： An elbow holding type photographing support comprising: a connecting base; at least one supporting arm connected to the connecting base; and an arm supporting member configured to butt against a human arm provided at one end part of the at least one supporting arm. The structure of the elbow holding type photographing support according to the present disclosure is lighter in weight, and takes into account both the support to loads and the reduction of jittering to obtain more stable pictures.
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公开(公告)号：US09777255B2
公开(公告)日：2017-10-03
申请号：US12967696
申请日：2010-12-14
申请人： Peter R. Macleish , Xiaoming Chen
发明人： Peter R. Macleish , Xiaoming Chen
IPC分类号： C12N5/0793 , A01N1/02 , A61K35/30
摘要： A method for the isolation, storage and retrieval of mature retinal cells is disclosed. The Method is applicable to adult mammalian cone cells, and more particularly human cone cells, and to healthy as well as pathological or otherwise altered cone cells. A kit for the isolation, storage and retrieval of mature retinal cells is also described.
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公开(公告)号：US09594168B2
公开(公告)日：2017-03-14
申请号：US13393140
申请日：2010-09-19
申请人： Ulrich Vollath , Xiaoming Chen , Rodrigo Leandro
发明人： Ulrich Vollath , Xiaoming Chen , Rodrigo Leandro
CPC分类号： G01S19/04 , G01S19/20 , G01S19/258 , G01S19/37 , G01S19/43
摘要： Methods and apparatus are described for determining position of a rover antenna, comprising: obtaining rover GNSS data derived from code observations and carrier phase observations of GNSS signals of multiple satellites over multiple epochs, obtaining precise satellite data for the satellites, determining a virtual base station location, generating epochs of synthesized base station data using at least the precise satellite data and the virtual base station location, and applying a differential process to at least the rover GNSS data and the synthesized base station data to determine at least rover antenna positions.
摘要翻译： 描述了用于确定流动站天线的位置的方法和装置，包括：从多个时代的多个卫星的GNSS信号的代码观测和载波相位观测获得的漫游器GNSS数据，获得卫星的精确卫星数据，确定虚拟基站 位置，使用至少精确的卫星数据和虚拟基站位置来生成合成基站数据的时期，以及至少对流动站GNSS数据和合成的基站数据应用差分过程以至少确定漫游者天线位置。
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公开(公告)号：US09164174B2
公开(公告)日：2015-10-20
申请号：US13522329
申请日：2011-02-14
申请人： Xiaoming Chen , Ulrich Vollath , Kendall Ferguson
发明人： Xiaoming Chen , Ulrich Vollath , Kendall Ferguson
CPC分类号： G01S19/04 , G01S1/00 , G01S5/14 , G01S19/02 , G01S19/07 , G01S19/32 , G01S19/40 , G01S19/41 , G01S19/43 , G01S19/44
摘要： Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located within the region, the correction data comprising: the ionospheric delay over the region, the tropospherπc delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located within a region are presented in which a GNSS receiver is operated to obtain multi-frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non-ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network.
摘要翻译： 提出了用于处理从多频码和载波观测得到的GNSS数据的方法和装置，其提供了位于该区域内的流动站使用的校正数据，校正数据包括：该区域上的电离层延迟，对流层和 延迟该区域，每个卫星的相位几何校正，以及至少一个每个卫星的码偏置。 在一些实施例中，校正数据包括每个卫星的电离层相位偏置。 介绍了一种用于确定位于一个区域内的流动站的精确位置的方法和装置，其中操作GNSS接收器以获得多频码和载波观测和校正数据，以从校正数据中产生流动站校正，并确定 使用流动站观测和流动站校正确定流动站的位置。 校正数据包括每个卫星至少一个代码偏置，每个卫星的固定自然MW偏差和/或每个卫星可衍生固定自然MW偏差的值，以及每个卫星对每个多个区域网络站的电离层延迟 和/或非电离层校正。 还提出了用于对包含校正数据的校正消息进行编码和解码的方法和装置，其中网络消息包括与网络的基本上所有站相关的网络元件，并且集群消息包括与网络的子集有关的集群元素。
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公开(公告)号：US09091757B2
公开(公告)日：2015-07-28
申请号：US13117092
申请日：2011-05-26
申请人： Xiaoming Chen
发明人： Xiaoming Chen
摘要： Methods and apparatus are presented for estimating environmental parameters from GNSS signals in real time. Some embodiments estimate a float solution using a federated ionospheric filter. Some embodiments fix ambiguities for improved estimates.
摘要翻译： 提出了用于从GNSS信号实时估计环境参数的方法和装置。 一些实施例使用联合电离层滤波器来估计浮动解。 一些实施例解决了改进估计的模糊性。
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