专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07990225B1 Low-jitter phase-locked loop 有权
标题翻译：低抖动锁相环
公开(公告)号：US07990225B1
公开(公告)日：2011-08-02
申请号：US12498989
申请日：2009-07-07
申请人： Jianmin Guo , Yihui Li , Hong Xue , Yonghua Song , Tao Shui , Hao Zhou
发明人： Jianmin Guo , Yihui Li , Hong Xue , Yonghua Song , Tao Shui , Hao Zhou
IPC分类号： H03L7/085
CPC分类号： H03L7/099 , H03L7/093 , H03L2207/06
摘要： A phase-locked loop (PLL) with a decreased frequency tuning gain KVCO and a loop filter using capacitor multiplication technique to get high chip area efficiency. To get decreased frequency tuning gain, KVCO, a voltage to current converter in a voltage-controlled oscillator (VCO) in the PLL may comprise a first voltage to current converter and a second voltage to current converter. The trans-conductance of the first voltage to current converter is 1/β of that of the second voltage to current converter, wherein β>1. The first voltage to current converter is controlled by an output voltage of a loop filter in the PLL, and the second voltage to current converter is controlled by a relative DC voltage, which may be the junction node between R1 and C1 in a loop filer of the PLL. Capacitor multiplication technique may use an auxiliary charge pump to charge or discharge the junction node between R1 and C1 inversely to the main charge pump. When the charge or discharge current unit of the auxiliary charge pump is α times of the main charge pump, the capacitance of C1 may be reduced to just (1−α) times of what it needed in a conventional loop stability compensation method, wherein α
摘要翻译：具有降低的频率调谐增益KVCO的锁相环（PLL）和使用电容器乘法技术的环路滤波器以获得高芯片面积效率。为了降低频率调谐增益，PLL中的压控振荡器（VCO）中的电压 - 电流转换器KVCO可以包括第一电压 - 电流转换器和第二电压 - 电流转换器。第一个电压到电流转换器的反向电导为1 / 的第二电压到电流转换器，其中＆amp; 1。第一个电压到电流转换器由PLL中的环路滤波器的输出电压控制，第二个电压到电流转换器由一个相对直流电压控制，相对直流电压可以是一个环路滤波器中的R1和C1之间的结点 PLL。电容倍增技术可以使用辅助电荷泵来将R1和C1之间的连接节点与主电荷泵反向充电或放电。当辅助电荷泵的充电或放电电流单元是主电荷泵的α倍时，C1的电容可以降低到常规环路稳定性补偿方法中所需要的（1-α）倍，其中α <1。

2. 发明授权

US08471625B1 Beta enhanced voltage reference circuit 有权
标题翻译： β增强型电压基准电路
公开(公告)号：US08471625B1
公开(公告)日：2013-06-25
申请号：US13047313
申请日：2011-03-14
申请人： Hao Zhou , Bingkun Yao , Tao Shui , Yonghua Song
发明人： Hao Zhou , Bingkun Yao , Tao Shui , Yonghua Song
IPC分类号： G05F3/16 , H02M3/145
CPC分类号： G05F3/30
摘要： A beta enhancement circuit includes a current source connected in series with a transistor between two voltage supply lines. In an embodiment, the voltage supply lines are configured for connection to a power source and ground potential. A resistor device is connected between a control terminal of the transistor device and one of voltage supply lines. A value for the resistor device is selected based on one or more process dependent parameters of the transistor.
摘要翻译： β增强电路包括与两个电压线之间的晶体管串联连接的电流源。在一个实施例中，电压供应线被配置为连接到电源和地电位。电阻器件连接在晶体管器件的控制端子和电源线之一之间。基于晶体管的一个或多个处理相关参数来选择电阻器件的值。

3. 发明授权

US08451160B1 Low power high speed pipeline ADC 有权
标题翻译：低功耗高速流水线ADC
公开(公告)号：US08451160B1
公开(公告)日：2013-05-28
申请号：US13109320
申请日：2011-05-17
申请人： Hao Zhou , Yonghua Song , Tao Shui , Jie Jiang , Song Chen
发明人： Hao Zhou , Yonghua Song , Tao Shui , Jie Jiang , Song Chen
IPC分类号： H03M1/38
CPC分类号： H03M1/002 , H03M1/1215 , H03M1/124 , H03M1/167
摘要： In accordance with the teachings described herein, systems and methods are provided for a time-interleaved pipeline analog to digital converter. An example pipeline analog to digital converter may include passive sampling circuits and a multiplying digital to analog converter circuit. A first passive sampling circuit includes an input terminal coupled to an analog input signal, and outputs a first sample voltage that is responsive to the analog input signal. A second passive sampling circuit includes an input terminal coupled to the analog input signal, and outputs a second sample voltage that is responsive to the analog input signal. The first and second passive sampling circuits are clocked such that the first sample voltage and the second sample voltage are time-interleaved. A multiplying analog to digital converter (MDAC) circuit receives the time-interleaved first and second sample voltages from the first and second passive sampling circuits and processes the time-interleaved first and second sample voltages to generate a residue output voltage.
摘要翻译：根据本文描述的教导，为时间交错流水线模数转换器提供了系统和方法。示例性管线模数转换器可以包括无源采样电路和乘法数模转换器电路。第一无源采样电路包括耦合到模拟输入信号的输入端，并且输出响应于模拟输入信号的第一采样电压。第二无源采样电路包括耦合到模拟输入信号的输入端，并且输出响应于模拟输入信号的第二采样电压。第一和第二无源采样电路被计时，使得第一采样电压和第二采样电压是时间交织的。乘法模数转换器（MDAC）电路接收来自第一和第二无源采样电路的时间交错的第一和第二采样电压，并处理时间交错的第一和第二采样电压以产生残余输出电压。

4. 发明授权

US09190859B1 Voltage reference buffer using voltage battery level shifter 有权
标题翻译：电压参考缓冲器使用电压电池电平转换器
公开(公告)号：US09190859B1
公开(公告)日：2015-11-17
申请号：US13115813
申请日：2011-05-25
申请人： Hao Zhou , Yonghua Song , Tao Shui , Jie Jiang
发明人： Hao Zhou , Yonghua Song , Tao Shui , Jie Jiang
IPC分类号： H02J7/00
CPC分类号： H03K17/161 , H02J7/0054 , H03K17/063 , H03K2217/0081
摘要： In one embodiment, an apparatus includes a first supply voltage and a second supply voltage. Level shifter circuitry is configured as a first voltage battery to shift a first voltage and a second voltage battery to shift a second voltage. A first circuit receives the shifted first voltage and sets a third voltage, and receives the shifted second voltage and sets a fourth voltage. The shifted first voltage is greater than the first supply voltage and the shifted second voltage level is less than the second supply voltage. A second circuit sets a fifth voltage and a sixth voltage. The fifth voltage follows the third voltage and the sixth voltage following the fourth voltage.
摘要翻译：在一个实施例中，装置包括第一电源电压和第二电源电压。电平移位器电路被配置为第一电压电池以移动第一电压和第二电压电池以移位第二电压。第一电路接收移位的第一电压并设置第三电压，并接收移位的第二电压并设置第四电压。移位的第一电压大于第一电源电压，并且移位的第二电压电平小于第二电源电压。第二电路设置第五电压和第六电压。第五电压跟随第四电压的第三电压和第六电压。

5. 发明授权

US08354887B1 Charge compensation for operational transconductance amplifier based circuits 有权
标题翻译：基于运算跨导放大器的电路的充电补偿
公开(公告)号：US08354887B1
公开(公告)日：2013-01-15
申请号：US13109315
申请日：2011-05-17
申请人： Hao Zhou , Yonghua Song , Jie Jiang , Tao Shui
发明人： Hao Zhou , Yonghua Song , Jie Jiang , Tao Shui
IPC分类号： H03F1/14
CPC分类号： H03F3/45188 , H03F3/45695 , H03F3/70 , H03F2200/456 , H03F2203/45318 , H03F2203/45332 , H03F2203/45354 , H03F2203/45356
摘要： In accordance with the teachings described herein, systems and methods are provided for charge compensation. A system may include an operational transconductance amplifier including an input terminal and an output terminal, a transistor network, and a capacitive circuit. The transistor network may be coupled in a feedback loop between the input terminal and the output terminal. The capacitive circuit may be configured to compensate a charge built on a parasitic capacitance of the transistor network during operation.
摘要翻译：根据本文所述的教导，提供了用于电荷补偿的系统和方法。系统可以包括一个包括输入端和输出端，晶体管网络和电容电路的运算跨导放大器。晶体管网络可以在输入端子和输出端子之间的反馈回路中耦合。电容电路可以被配置为补偿在操作期间内置于晶体管网络的寄生电容上的电荷。

6. 发明申请

US20210200784A1 Regionalized lawn maintenance management system and method 有权
公开(公告)号：US20210200784A1
公开(公告)日：2021-07-01
申请号：US16878438
申请日：2020-05-19
申请人： Hao Zhou
发明人： Hao Zhou
IPC分类号： G06F16/26 , G06F16/22 , G06F16/2457 , A01D42/00 , G01W1/10
摘要： The invention relates to a regional lawn maintenance management system and method, and relates to the technical field of lawn maintenance management, mainly including lawn maintenance terminal equipment, evaluation equipment, intelligent computing equipment, community terminal equipment, data visualization equipment, connected through a communication network, the management equipment, database and commercial operation equipment can fully evaluate the users condition before the user conducts regional lawn maintenance management. The intelligent computing equipment and evaluation equipment generate suitable data based on the evaluation data information and/or historical evaluation data information before, and after the maintenance of the lawn based on the users maintenance plan information and feedback from the lawn maintenance terminal equipment, the maintenance plan information is continuously optimized in subsequent maintenance or data processing to generate a set of targeted maintenance plans, and the comparison is obtained at the regional level. The macro regional turfgrass data provides the function of regional turfgrass maintenance and decision-making, so that turfgrass management can be regionalized, refined, intensive and intelligent.

7. 发明授权

US08828288B2 Porous, low density nanoclay composite 有权
标题翻译：多孔，低密度纳米复合材料
公开(公告)号：US08828288B2
公开(公告)日：2014-09-09
申请号：US13484322
申请日：2012-05-31
申请人： Qi Liao , Walter A. Scrivens , Philip T. Wilson , Darin L. Dotson , Hao Zhou
发明人： Qi Liao , Walter A. Scrivens , Philip T. Wilson , Darin L. Dotson , Hao Zhou
IPC分类号： B29C35/16
CPC分类号： C08K3/346 , C04B33/04 , C04B38/0045 , C04B2111/2046 , C04B2111/52 , C04B2235/349 , C04B2235/5454 , C04B2235/606 , C08J3/075 , C08J9/008 , C08J9/28 , C08J2201/0484 , C08J2305/00 , C08J2305/12 , C08J2329/04 , C08J2361/28 , C08J2389/00 , C08J2405/12 , C08K5/053 , C08L5/12 , C08L29/04 , Y10T442/2861 , C04B38/0054 , C04B38/0605
摘要： Disclosed are porous, low density nanoclay composites that exhibit highly homogeneous microcellular morphology and methods for forming the nanocomposites. The nanocomposites include a three-dimensional matrix having a non-lamellar, generally isotropic cellular structure with little or no macroscopic pores. The nanocomposites also include a gel that may be a noncovalently cross-linked, thermoreversible gel. The nanocomposites may include a binder and/or fibrous reinforcement materials. The nanocomposites may be formed according to a freeze-drying process in which ice crystal growth is controlled to prevent formation of macroscopic pores in the composite materials.
摘要翻译：公开了多孔，低密度纳米粘土复合材料，其表现出高度均匀的微孔形态和形成纳米复合材料的方法。纳米复合材料包括具有非层状，通常各向同性的细胞结构，具有很少或不具有宏观孔的三维基质。纳米复合材料还包括可以是非共价交联的热可逆凝胶的凝胶。纳米复合材料可以包括粘合剂和/或纤维增强材料。可以根据冷冻干燥方法形成纳米复合材料，其中控制冰晶生长以防止在复合材料中形成宏观孔。

8. 发明授权

US08739245B2 Flexible supplicant access control 有权
标题翻译：灵活的请求者访问控制
公开(公告)号：US08739245B2
公开(公告)日：2014-05-27
申请号：US12319988
申请日：2009-01-14
申请人： Joseph Salowey , Hao Zhou , Jason Frazier
发明人： Joseph Salowey , Hao Zhou , Jason Frazier
IPC分类号： H04L29/06
CPC分类号： H04L63/105 , H04L63/20
摘要： Systems, methods, and other embodiments associated with flexible supplicant access control are described. One example method includes collecting a network information associated with a network to which an endpoint is to be communicatively coupled. The network information comprises a network identification and information to facilitate the evaluation of network threats. The example method may also include classifying the network based, at least in part, on the network information, to assign a variable level access parameter (VLAP) to the network based on the policy locally configured on the endpoint or centrally managed by the administrator. The VLAP may establish three or more access levels for the network at the endpoint. The example method may also include communicating the network identification and the network VLAP to a second endpoint, a security agent, a security application, and so on.
摘要翻译：描述了与灵活请求者访问控制相关联的系统，方法和其他实施例。一个示例性方法包括收集与端点将要通信耦合到的网络相关联的网络信息。网络信息包括网络标识和信息，以便于评估网络威胁。该示例性方法还可以包括至少部分地基于网络信息对网络进行分类，以基于在端点上本地配置的策略或由管理员集中管理的策略向网络分配可变级访问参数（VLAP）。 VLAP可以在端点处为网络建立三个或更多个访问级别。示例性方法还可以包括将网络标识和网络VLAP传送到第二端点，安全代理，安全应用等。

9. 发明授权

US08654008B2 Multi-stage GLONASS/GPS automatic frequency control 有权
标题翻译：多级GLONASS / GPS自动频率控制
公开(公告)号：US08654008B2
公开(公告)日：2014-02-18
申请号：US12894067
申请日：2010-09-29
申请人： Hao Zhou , Qinfang Sun
发明人： Hao Zhou , Qinfang Sun
IPC分类号： G01S19/29 , G01S19/21
CPC分类号： G01S19/33 , G01S19/24
摘要： A method of providing automatic frequency control pull-in for efficient receipt of GLONASS bits is described. This method can include first determining whether a channel noise (CNo) is greater than or equal to a predetermined value. When the CNo is greater than or equal to the predetermined value, the pull-in can be performed using a first series of predetection integration periods (PDIs) with activated decision-directed flips (DDFs) until a 20 ms boundary of a GLONASS data bit is found. When the CNo is less than the predetermined value, the pull-in can be performed using a second series of PDIs with always deactivated DDFs. A similar method of providing automatic frequency control pull-in for efficient receipt of GPS bits is also described.
摘要翻译：描述了提供自动频率控制拉入以有效接收GLONASS位的方法。该方法可以包括首先确定信道噪声（CNo）是否大于或等于预定值。当CNo大于或等于预定值时，可以使用具有激活的决策导向翻转（DDF）的第一系列预检整合周期（PDI）来执行引入，直到GLONASS数据位的20ms边界被发现。当CNo小于预定值时，可以使用具有永久禁用的DDF的第二系列PDI来执行引入。还描述了提供自动频率控制拉入以有效接收GPS位的类似方法。

10. 发明授权

US08420254B2 End cover assembly for an electrochemical cell 有权
标题翻译：用于电化学电池的端盖组件
公开(公告)号：US08420254B2
公开(公告)日：2013-04-16
申请号：US12547856
申请日：2009-08-26
申请人： Jianhua Zhu , Hao Zhou
发明人： Jianhua Zhu , Hao Zhou
IPC分类号： H01M2/24
CPC分类号： H01M2/04 , H01M2/06 , H01M2/08 , H01M2/1094 , H01M2/1241 , H01M2/1673 , H01M2/18 , H01M2/202 , H01M2/22 , H01M2/347 , H01M10/0525 , H01M10/0587 , H01M10/486 , H01M10/613 , H01M10/615 , H01M10/625 , H01M10/647 , H01M10/653 , H01M10/6553 , H01M10/6556 , H01M10/6567 , H01M10/6571 , H01M10/66 , H01M2200/00 , Y10T29/49108 , Y10T156/10
摘要： An end cover assembly for a battery comprises a cover plate; a scabbard mounted on the cover plate; a connector; and a sealing material. The cover plate comprises an opening. The scabbard comprises an interior channel. The opening is in communication with the channel. The connector is disposed in the interior channel and protrudes from the scabbard. The sealing material is disposed in the interior channel and extends beyond the upper portion of the scabbard and wraps around the outside of the scabbard to form a protective flange.
摘要翻译：一种用于电池的端盖组件包括盖板; 安装在盖板上的剑鞘; 连接器和密封材料。盖板包括开口。剑鞘包括内部通道。该通道与通道通信。连接器设置在内部通道中，并从鞘袋突出。密封材料设置在内部通道中并且延伸超过剑鞘的上部并且围绕鞘的外侧包裹以形成保护性凸缘。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式