公开(公告)号：US20150108210A1

公开(公告)日：2015-04-23

申请号：US14516585

申请日：2014-10-17

Applicant: Liming Zhou

Inventor： Liming Zhou

IPC: H04W4/02 ,  H03H11/24 ,  G06K19/077 ,  H03F1/02 ,  G06K7/10 ,  G06K19/07 ,  G06K19/073 ,  H03K19/00

CPC classification number: H03H11/245 ,  G01S5/0247 ,  G01S5/08 ,  G06K7/10237 ,  G06K7/10356 ,  G06K19/07749 ,  G06K19/07773 ,  H03F1/02 ,  H03F1/0211 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/27 ,  H03F2200/321 ,  H03F2200/336 ,  H03F2200/414 ,  H03H7/18 ,  H03H7/24 ,  H03H7/255 ,  H03H7/383 ,  H03K19/0005 ,  H04W4/02

Abstract: Technologies for RFID positioning and tracking apparatus and methods are disclosed herein. The apparatus and methods disclose a radio-frequency identification positioning system that includes a radio-frequency identification reader and a phased-array antenna coupled to the radio-frequency identification reader. Techniques are applied to reduce in-reader and in-antenna signal leakages. Techniques are applied to position and track RFID tags. Circuits with leakage cancellation abilities are also disclosed. Reflective vector attenuators with tunable impedance load are also disclosed. Polarization adjustable antennas with matching circuits used in the RFID positioning system are also disclosed. Circuits to re-transmit a received signal at a higher amplitude to enhance radio link range are also disclosed. Techniques are applied to increase the level of scattered radio signals from RFID tags.

Abstract translation: 本文公开了用于RFID定位和跟踪装置和方法的技术。 该装置和方法公开了一种射频识别定位系统，其包括射频识别读取器和耦合到射频识别读取器的相控阵天线。 应用技术来减少阅读器内和天线内的信号泄漏。 技术应用于定位和跟踪RFID标签。 还公开了具有泄漏消除能力的电路。 还公开了具有可调阻抗负载的反射矢量衰减器。 还公开了在RFID定位系统中使用的具有匹配电路的极化可调天线。 还公开了以更高幅度重新发送接收信号以增强无线电链路范围的电路。 应用技术来增加RFID标签散射无线电信号的水平。

公开(公告)号：US08064540B2

公开(公告)日：2011-11-22

申请号：US12829304

申请日：2010-07-01

Applicant: Liming Zhou ,  Vadim Kikin

Inventor： Liming Zhou ,  Vadim Kikin

IPC: H03C1/52

CPC classification number: H03C1/50 ,  H03C1/04 ,  H03C2200/0079

Abstract: A method for amplitude modulating a carrier signal according to one embodiment includes splitting the carrier signal into first and second paths; phase modulating the carrier signal on the first path; phase modulating the carrier signal on the second path; combining the phase modulated carrier signal on the first path with the phase modulated carrier signal on the second path for generating an amplitude modulated output signal; and wherein a first feedback loop couples the amplitude modulated output signal to circuitry for phase modulating the carrier signal on the second path but not to circuitry for phase modulating the carrier signal on the first path, the first feedback loop being for reducing a residual phase variation of the amplitude modulated output signal. Additional systems and methods are also presented.

Abstract translation: 根据一个实施例的用于幅度调制载波信号的方法包括将载波信号分成第一和第二路径; 对第一路径上的载波信号进行相位调制; 对第二路径上的载波信号进行相位调制; 将第一路径上的相位调制载波信号与第二路径上的相位调制载波信号相组合，用于产生幅度调制输出信号; 并且其中第一反馈环路将所述幅度调制输出信号耦合到电路，用于对所述第二路径上的所述载波信号进行相位调制，但不将所述电路用于相位调制所述第一路径上的载波信号，所述第一反馈环路用于减少残余相位变化 的幅度调制输出信号。 还介绍了其他系统和方法。

公开(公告)号：US20070206704A1

公开(公告)日：2007-09-06

申请号：US11367060

申请日：2006-03-03

Applicant: Liming Zhou ,  Roger Stewart

Inventor： Liming Zhou ,  Roger Stewart

IPC: H04L27/00 ,  G08B13/14 ,  H04Q5/22 ,  G06F3/033

CPC classification number: H04B1/59 ,  G06K7/0008 ,  G06K7/10029 ,  G06K7/10079 ,  G06K7/10217

Abstract: An RFID reader includes first and second mixers receiving an incoming signal, circuitry for adding a portion of an outgoing signal to an incoming signal, first and second analog feedback loops coupling outputs of the first and second mixers to the circuitry for adding the outgoing signal to the incoming signal. An amount of outgoing signal added to the incoming signal depends on signals in the feedback loops. An RFID reader in another embodiment of the present invention includes a first mixer receiving an incoming signal, a second mixer receiving the incoming signal, an AC-coupled section coupled to the mixer outputs, and a DC-coupled section coupled to the mixer outputs. An RFID reader in another embodiment of the present invention includes an analog loop for adaptive carrier signal cancellation from an incoming signal, and a digital loop for controlling a gain of the incoming signal. Methods are also presented.

Abstract translation: RFID读取器包括接收输入信号的第一和第二混频器，用于将输入信号的一部分添加到输入信号的电路;第一和第二模拟反馈回路，将第一和第二混频器的输出耦合到电路，用于将输出信号加到 传入信号。 输入信号的输出信号量取决于反馈回路中的信号。 本发明另一实施例中的RFID读取器包括接收输入信号的第一混频器，接收输入信号的第二混频器，耦合到混频器输出端的AC耦合部分，以及耦合到混频器输出端的DC耦合部分。 本发明的另一实施例中的RFID读取器包括用于从输入信号中自适应载波信号消除的模拟环路和用于控制输入信号的增益的数字环路。 还提出了方法。

公开(公告)号：US20130007824A1

公开(公告)日：2013-01-03

申请号：US13581628

申请日：2011-06-24

Applicant: Jianhua Kong ,  Bin Yang ,  Liming Zhou

Inventor： Jianhua Kong ,  Bin Yang ,  Liming Zhou

IPC: H04N21/20

CPC classification number: H04N21/25891 ,  H04L65/4076 ,  H04N21/25

Abstract: The disclosure provides a match-rule based service message transfer method and system in the IPTV, to address the problems in the IPTV message system of message storing and backlog, low push efficiency and poor usability. In the disclosure, match fields are arranged in a set-top box and a service message to be sent, the service message is sent by means of broadcast or multicast, the set-top box performs matching for the match fields based on the match rule, and filters the message. The disclosure avoids sending a service message by means of unicast, increases the push efficiency and can greatly reduce the storage load of offline messages in a message system. The formed message may be sent according to a single or combined policy which depends on a specific service attribute, thereby greatly facilitating the service operation.

公开(公告)号：US20100265043A1

公开(公告)日：2010-10-21

申请号：US12829304

申请日：2010-07-01

Applicant: Liming Zhou ,  Vadim Kikin

Inventor： Liming Zhou ,  Vadim Kikin

IPC: H04Q5/22 ,  H03C1/02

CPC classification number: H03C1/50 ,  H03C1/04 ,  H03C2200/0079

Abstract: A method for amplitude modulating a carrier signal according to one embodiment includes splitting the carrier signal into first and second paths; phase modulating the carrier signal on the first path; phase modulating the carrier signal on the second path; combining the phase modulated carrier signal on the first path with the phase modulated carrier signal on the second path for generating an amplitude modulated output signal; and wherein a first feedback loop couples the amplitude modulated output signal to circuitry for phase modulating the carrier signal on the second path but not to circuitry for phase modulating the carrier signal on the first path, the first feedback loop being for reducing a residual phase variation of the amplitude modulated output signal. Additional systems and methods are also presented.

Abstract translation: 根据一个实施例的用于幅度调制载波信号的方法包括将载波信号分成第一和第二路径; 对第一路径上的载波信号进行相位调制; 对第二路径上的载波信号进行相位调制; 将第一路径上的相位调制载波信号与第二路径上的相位调制载波信号相组合，用于产生幅度调制输出信号; 并且其中第一反馈环路将所述幅度调制输出信号耦合到电路，用于对所述第二路径上的所述载波信号进行相位调制，但不将所述电路用于相位调制所述第一路径上的载波信号，所述第一反馈环路用于减少残余相位变化 的幅度调制输出信号。 还介绍了其他系统和方法。

公开(公告)号：US09467118B2

公开(公告)日：2016-10-11

申请号：US14516585

申请日：2014-10-17

Applicant: Liming Zhou

Inventor： Liming Zhou

IPC: G06F17/00 ,  H03H11/24 ,  H04W4/02 ,  H03K19/00 ,  H03F1/02 ,  G06K7/10 ,  H03H7/18 ,  H03H7/24 ,  H03H7/25 ,  H03F3/195 ,  H03F3/24 ,  G06K19/077 ,  G01S5/02 ,  G01S5/08 ,  H03H7/38

CPC classification number: H03H11/245 ,  G01S5/0247 ,  G01S5/08 ,  G06K7/10237 ,  G06K7/10356 ,  G06K19/07749 ,  G06K19/07773 ,  H03F1/02 ,  H03F1/0211 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/27 ,  H03F2200/321 ,  H03F2200/336 ,  H03F2200/414 ,  H03H7/18 ,  H03H7/24 ,  H03H7/255 ,  H03H7/383 ,  H03K19/0005 ,  H04W4/02

Abstract: Technologies for RFID positioning and tracking apparatus and methods are disclosed herein. The apparatus and methods disclose a radio-frequency identification positioning system that includes a radio-frequency identification reader and a phased-array antenna coupled to the radio-frequency identification reader. Techniques are applied to reduce in-reader and in-antenna signal leakages. Techniques are applied to position and track RFID tags. Circuits with leakage cancellation abilities are also disclosed. Reflective vector attenuators with tunable impedance load are also disclosed. Polarization adjustable antennas with matching circuits used in the RFID positioning system are also disclosed. Circuits to re-transmit a received signal at a higher amplitude to enhance radio link range are also disclosed. Techniques are applied to increase the level of scattered radio signals from RFID tags.

Abstract translation: 本文公开了用于RFID定位和跟踪装置和方法的技术。 该装置和方法公开了一种射频识别定位系统，其包括射频识别读取器和耦合到射频识别读取器的相控阵天线。 应用技术来减少阅读器内和天线内的信号泄漏。 技术应用于定位和跟踪RFID标签。 还公开了具有泄漏消除能力的电路。 还公开了具有可调阻抗负载的反射矢量衰减器。 还公开了在RFID定位系统中使用的具有匹配电路的极化可调天线。 还公开了以更高幅度重新发送接收信号以增强无线电链路范围的电路。 应用技术来增加RFID标签散射无线电信号的水平。

公开(公告)号：US20160112032A1

公开(公告)日：2016-04-21

申请号：US14972099

申请日：2015-12-17

Applicant: Liming Zhou

Inventor： Liming Zhou

IPC: H03H11/24 ,  G06K7/10

CPC classification number: H03H11/245 ,  G01S5/0247 ,  G01S5/08 ,  G06K7/10237 ,  G06K7/10356 ,  G06K19/07749 ,  G06K19/07773 ,  H03F1/02 ,  H03F1/0211 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/27 ,  H03F2200/321 ,  H03F2200/336 ,  H03F2200/414 ,  H03H7/18 ,  H03H7/24 ,  H03H7/255 ,  H03H7/383 ,  H03K19/0005 ,  H04W4/02

Abstract: Technologies for RFID positioning and tracking apparatus and methods are disclosed herein. The apparatus and methods disclose a radio-frequency identification positioning system that includes a radio-frequency identification reader and a phased-array antenna coupled to the radio-frequency identification reader. Techniques are applied to reduce in-reader and in-antenna signal leakages. Techniques are applied to position and track RFID tags. Circuits with leakage cancellation abilities are also disclosed. Reflective vector attenuators with tunable impedance load are also disclosed. Polarization adjustable antennas with matching circuits used in the RFID positioning system are also disclosed. Circuits to re-transmit a received signal at a higher amplitude to enhance radio link range are also disclosed. Techniques are applied to increase the level of scattered radio signals from RFID tags.

Abstract translation: 本文公开了用于RFID定位和跟踪装置和方法的技术。 该装置和方法公开了一种射频识别定位系统，其包括射频识别读取器和耦合到射频识别读取器的相控阵天线。 应用技术来减少阅读器内和天线内的信号泄漏。 技术应用于定位和跟踪RFID标签。 还公开了具有泄漏消除能力的电路。 还公开了具有可调阻抗负载的反射矢量衰减器。 还公开了在RFID定位系统中使用的具有匹配电路的极化可调天线。 还公开了以更高幅度重新发送接收信号以增强无线电链路范围的电路。 应用技术来增加RFID标签散射无线电信号的水平。

公开(公告)号：US07773695B2

公开(公告)日：2010-08-10

申请号：US11207348

申请日：2005-08-19

Applicant: Liming Zhou ,  Vadim Kikin

Inventor： Liming Zhou ,  Vadim Kikin

IPC: H03C1/52

CPC classification number: H03C1/50 ,  H03C1/04 ,  H03C2200/0079

Abstract: A circuit for amplitude modulating a carrier signal includes a carrier signal input, circuitry for splitting the carrier signal into first and second paths, circuitry for phase modulating the carrier signal on the first path, circuitry for phase modulating the carrier signal on the second path, and circuitry for combining the phase modulated carrier signal on the first path with the phase modulated carrier signal on the second path for generating an amplitude modulated output signal. Feedback loops virtually eliminate residual phase shift and make the amplitude modulated output signal linearly proportional to the baseband signal.

Abstract translation: 用于幅度调制载波信号的电路包括载波信号输入，用于将载波信号分离成第一和第二路径的电路，用于相位调制第一路径上的载波信号的电路，用于相位调制第二路径上的载波信号的电路， 以及用于将第一路径上的相位调制载波信号与第二路径上的相位调制载波信号组合以产生幅度调制输出信号的电路。 反馈回路实际上消除了残留相移，并使幅度调制输出信号与基带信号成线性比例。

公开(公告)号：US20080063298A1

公开(公告)日：2008-03-13

申请号：US11898219

申请日：2007-09-10

Applicant: Liming Zhou ,  Yousheng Zeng

Inventor： Liming Zhou ,  Yousheng Zeng

IPC: G06K9/36

CPC classification number: G06K9/3275 ,  G06T7/37 ,  G06T2207/10048

Abstract: The provided is a method that can automatically align image frames in recorded video clips. Individual frames in video may shift and rotate due to shaking or vibration of a video camera. Unaligned frames make some imaging processing techniques difficult or infeasible. One example of image processing techniques is to isolate, recognize, and/or quantitatively analyze vapor plume images captured by an Infrared (IR) camera. Such techniques have a great potential to be used to automatically detect volatile organic compounds (VOC) leaked from process equipment at refineries and chemical plants. This invention is a technique for various subsequent image processing techniques. The invention uses spatially based Fast Fourier Transforms (FFT) to determine amount of shift, rotation, and scaling to align image frames, and uses a digital filtering technique to improve the alignment.

Abstract translation: 所提供的是可以自动对准记录的视频剪辑中的图像帧的方法。 视频中的各个帧可能由于摄像机的晃动或振动而移动和旋转。 未对齐的框架使一些成像处理技术变得困难或不可行。 图像处理技术的一个示例是分离，识别和/或定量分析由红外（IR）照相机捕获的蒸汽羽流图像。 这些技术具有很大的潜力用于自动检测炼油厂和化工厂从工艺设备泄漏的挥发性有机化合物（VOC）。 本发明是用于各种后续图像处理技术的技术。 本发明使用基于空间的快速傅里叶变换（FFT）来确定移位，旋转和缩放以对准图像帧的量，并且使用数字滤波技术来改善对准。

公开(公告)号：US20060148356A1

公开(公告)日：2006-07-06

申请号：US11369264

申请日：2006-03-06

Applicant: Yugao Zhang ,  Jun Xiao ,  Liming Zhou

Inventor： Yugao Zhang ,  Jun Xiao ,  Liming Zhou

IPC: D04B21/00 ,  D04B1/14 ,  B32B5/26

CPC classification number: D06M15/647 ,  A41D31/12 ,  D04B1/14 ,  D06M13/419 ,  D06M13/432 ,  D06M15/277 ,  D06M2101/06 ,  D10B2201/02 ,  D10B2401/021 ,  D10B2401/022 ,  D10B2403/0114 ,  Y10T442/40 ,  Y10T442/438 ,  Y10T442/488

Abstract: The present invention is a quick-drying pure cotton fabric whose two faces have different properties and a method of producing same. One face of said fabric is a hydrophobic face formed largely or entirely from hydrophobic pure cotton, and the other face is a hydrophilic face formed largely or entirely from hydrophobic pure cotton. Moreover, said fabric is capable of unidirectional transportation of water. The method of producing said fabric consists mainly of separate hydrophobic treatments of pure cotton yarn. The result is hydrophilically-treated yarn and hydrophobically treated yarn. Then the two types of yarn are knit according to a certain knitting process to produce a fabric whose two faces have different properties: hydrophilicity and hydrophobicity. The fabric is also comfortable and has moisture management and fast-drying functions.

Abstract translation: 本发明是两面具有不同性质的快干纯棉织物及其制造方法。 所述织物的一面是疏水性表面，主要或完全由疏水性纯棉形成，另一面是大部分或完全由疏水性纯棉形成的亲水性面。 此外，所述织物能够单向运输水。 生产所述织物的方法主要由纯棉纱线的单独疏水处理组成。 结果是亲水处理的纱线和疏水处理的纱线。 然后，根据特定的编织方法对两种纱线进行编织，以生产两面具有不同性质的织物：亲水性和疏水性。 面料也舒适，具有水分管理和快干功能。