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公开(公告)号：US6031880A
公开(公告)日：2000-02-29
申请号：US674725
申请日：1996-07-02
申请人： Yong Li , Adnan Abu-Dayya , Hong Zhao , Rui Wang , Iouri Trofimov , Alexandre Chloma , Mikhail Bakouline , Vitali Kreindeline
发明人： Yong Li , Adnan Abu-Dayya , Hong Zhao , Rui Wang , Iouri Trofimov , Alexandre Chloma , Mikhail Bakouline , Vitali Kreindeline
IPC分类号： H04L27/227 , H04L7/00 , H04L7/04 , H04L27/00 , H04L27/22 , H04L27/233 , H04L27/38 , H04L27/14
CPC分类号： H04L27/2332 , H04L2027/003 , H04L2027/0046 , H04L7/042
摘要： A method of carrier recovery in a wireless communications system using a known synchronization word, for example an IS-54 TDMA system, operates in two stages to produce an estimate of carrier phase. In the first stage, a complex fading factor, embodying carrier phase information, is estimated from the synchronization word in the received signal using a least square criterion. In the second stage, the carrier phase is estimated from this complex fading factor by averaging. The averaging can provide a recursive average or a moving average, or can be implemented using Kalman filtering which also provides an estimated amplitude factor and frequency shift. The method and apparatus provide a substantial improvement over phase locked loop carrier recovery.
摘要翻译： 使用已知同步字的无线通信系统中的载波恢复方法，例如IS-54 TDMA系统，在两个阶段中工作，以产生载波相位的估计。 在第一阶段，使用最小二乘准则从接收信号中的同步字估计体现载波相位信息的复数衰落因子。 在第二阶段，通过平均从该复数衰落因子估计载波相位。 平均可以提供递归平均或移动平均，或者可以使用卡尔曼滤波来实现，其也提供估计的振幅因子和频移。 该方法和装置提供了相对于锁相环载波恢复的实质性改进。
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公开(公告)号：US5963603A
公开(公告)日：1999-10-05
申请号：US688911
申请日：1996-07-31
申请人： Yong Li , Rui Wang , Iouri Trofimov , Alexandre Chloma , Mikhail Bakouline , Vitali Kreindeline
发明人： Yong Li , Rui Wang , Iouri Trofimov , Alexandre Chloma , Mikhail Bakouline , Vitali Kreindeline
CPC分类号： H04L7/0054 , H04L7/0334 , H04L7/0029 , H04L7/007
摘要： Timing recovery, with or without frame synchronization, in a cellular TDMA communications system is carried out by a method comprising estimating indirect variables, which embody sampling delay information, of a linear complex vector using a maximum likelihood criterion, and recovering the sampling delay from the estimated indirect variables. For recovering the sampling delay, an optimal procedure and three sub-optimal, but computationally simpler, procedures are described, along with their physical implementations. For frame synchronization, the timing recovery sampling delay is supplemented by a number of sample spacings determined by a maximum of signal amplitudes of a plurality of samples, calculated from the estimated indirect variables and the timing recovery sampling delay.
摘要翻译： 在蜂窝TDMA通信系统中，具有或不具有帧同步的定时恢复是通过一种方法来执行的，该方法包括使用最大似然准则来估计线性复数向量的间接变量（其包含采样延迟信息），并且从 估计间接变量。 为了恢复采样延迟，描述了最佳过程和三个次优的，但计算上更简单的过程，以及它们的物理实现。 对于帧同步，定时恢复采样延迟由由估计的间接变量和定时恢复采样延迟计算的多个采样的信号幅度的最大值确定的多个采样间隔补充。
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公开(公告)号：US5832046A
公开(公告)日：1998-11-03
申请号：US681473
申请日：1996-07-23
申请人： Yong Li , Rui Wang , Iouri Trofimov , Alexandre Chloma , Mikhail Bakouline , Vitali Kreindeline
发明人： Yong Li , Rui Wang , Iouri Trofimov , Alexandre Chloma , Mikhail Bakouline , Vitali Kreindeline
CPC分类号： H04L7/0054 , H04L7/0062
摘要： In a TDMA cellular communications system, optimal sampling of symbols in an information sequence is maintained by a method of timing tracking in which, recursively, indirect variables of a linear complex vector are estimated from received samples and previous estimates of the indirect variables, the sampling delay, and a complex fading factor, and the complex fading factor and the sampling delay are estimated by non-linear transformations of the estimated indirect variables. The timing tracking follows a timing recovery process which produces initial estimates. An implementation of the method uses a Kalman filter having constant filter gains and a transformation of the received samples and sampling delay to a reduced time interval.
摘要翻译： 在TDMA蜂窝通信系统中，通过定时跟踪的方法来维持信息序列中的符号的最佳采样，其中，从接收的采样和间接变量的先前估计来估计线性复矢量的递归间接变量，采样 延迟和复杂衰落因子，并且通过估计的间接变量的非线性变换来估计复数衰落因子和采样延迟。 定时跟踪遵循产生初始估计的定时恢复过程。 该方法的实现使用具有恒定滤波器增益的卡尔曼滤波器和接收样本的变换和采样延迟到缩短的时间间隔。
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公开(公告)号：US20230316236A1
公开(公告)日：2023-10-05
申请号：US18330558
申请日：2023-06-07
CPC分类号： G06Q10/20 , G01K3/10 , G01P3/00 , G01R19/0092 , F21V29/60
摘要： The disclosure relates to a life prediction system for a fan of a lamp. The system comprises a fan signal detecting module to detect at least one working parameter of the fan; and a micro control unit to receive the working current signal, the environment temperature signal and the working rotation speed signal of the fan. The detecting module comprises a current detecting unit to detect a working current of the fan and output a working current signal; a temperature detecting unit to detect a working environment temperature of the fan and output an environment temperature signal; and a rotation speed detecting unit to detect and output a working rotation speed signal of the fan. The micro control unit calculates a predicted residual life of the fan based on the received working current signal, the environment temperature signal, the working rotation speed signal, through the life model of the fan.
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7.发明申请公开(公告)号：US20190332983A1
公开(公告)日：2019-10-31
申请号：US16508240
申请日：2019-07-10
申请人： Ahe Li , Xianda Li , Hongyun Ren , Jiaxin Li , Yong Li , Yangyang Zhang , Yuanyuan Li
发明人： Ahe Li , Xianda Li , Hongyun Ren , Jiaxin Li , Yong Li , Yangyang Zhang , Yuanyuan Li
摘要： The present invention discloses a business operation mode based on artificial-intelligence+legal-affairs+business-affairs. AI is the empowerment, legal-affairs' main-body, business-affairs' framework. AI characteristics lie-in two-learning or two-experts, including Internet-of-human, Internet-of-things, Internet-of-intelligence; applying AI computer-program to control or improve business-quality. AI+legal-affairs innovation lies-in new-brain or new-procedures, using contract to authorize AI's basic-role in judicial-affairs. Identification or adjudication is made by deep-learning and reinforcement-learning, both priorities accept. Experts separately verify evidence or fact, video-trial, mediate then arbitrate. Expert-database complements expert-system each-other, explains algorithm, and promotes reconciliation. Financial-experts control credit-limit and perform-contract through guarantee insurance. AI+legal-affairs+business-affairs characteristics lie-in two-lines or two-supports, applying AI to verify the credit of excellent business-subjects or business-quality, and control to improve business-process. To improve business-quality, focuses are on AI-health, AI-teaching, AI-traffic, or other public-services.
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8.发明申请公开(公告)号：US20190229569A1
公开(公告)日：2019-07-25
申请号：US15879544
申请日：2018-01-25
申请人： Yong Li , James C. Clingman
发明人： Yong Li , James C. Clingman
摘要： Systems and methods for constructing permanent magnet electric motors in which rotors have magnetically permeable end rings that are active for torque production. In one embodiment, a rotor section has a set of flat, generally annular laminations stacked on an inner rotor sleeve, with a pair of end rings positioned at opposing ends of the lamination stack to secure the stack. One or both of the end rings is made of a magnetically permeable and highly resistive material such as a soft magnetic composite, so that the end ring(s) actively produce torque during operation of the motor without significant increase in core loss at end rings. A set of permanent magnets are installed in or on the rotor core formed by the laminations. These magnets or other magnets may be positioned to axially overlap with the end rings and aid active torque production by the end rings.
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公开(公告)号：US09620308B1
公开(公告)日：2017-04-11
申请号：US15016281
申请日：2016-02-05
申请人： Yong Li
发明人： Yong Li
IPC分类号： H01H13/85 , H01H13/702
CPC分类号： H01H13/85 , H01H13/702 , H01H2215/03
摘要： A membrane keyboard equipped with click generating resilient pieces, having multiple keys and an electrically conductive membrane; each of the keys having a base and a cap; the cap sleeves on the base; an inner sidewall of the base is provided with an insertion slot for mounting a click generating resilient piece; a top part of the insertion slot is provided with position limiting wedges; the click generating resilient piece is positioned between the inner sidewall of the base and an outer sidewall of the cap; the cap is provided with a motion transmission element which drives the click generating resilient piece to move up and down in the insertion slot when the cap moves up and down. The clicking sounds generated by the click generating resilient pieces help users determine whether the desired key is pressed or released. Obvious tactile feedback can also be felt when using the keyboard.
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公开(公告)号：US09262210B2
公开(公告)日：2016-02-16
申请号：US13538854
申请日：2012-06-29
申请人： Brian K. Caufield , Yong Li , Xiaoyan Pu
发明人： Brian K. Caufield , Yong Li , Xiaoyan Pu
CPC分类号： G06F9/4843 , G06F9/505 , G06F2209/503
摘要： A method, computer program product and system for workload management for an Extract, Transform, and Load (ETL) system. A priority of each workload in a set of workloads is determined using a priority rule. In response to determining that the priority of a workload to be checked has a highest priority, it is indicated that the workload has the highest priority. It is determined whether at least one logical resource representing an ETL metric is available for executing the workload. In response to determining that the workload has the highest priority and that the at least one logical resource is available, it is determined that the workload is runnable.
摘要翻译： 一种用于提取，转换和加载（ETL）系统的工作负载管理的方法，计算机程序产品和系统。 使用优先级规则确定一组工作负载中的每个工作负载的优先级。 响应于确定要检查的工作负载的优先级具有最高优先级，则指示工作负载具有最高优先级。 确定表示ETL度量的至少一个逻辑资源是否可用于执行工作负载。 响应于确定工作负载具有最高优先级并且至少一个逻辑资源可用，则确定工作负载是可运行的。
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