公开(公告)号：US20050270098A1

公开(公告)日：2005-12-08

申请号：US10932545

申请日：2004-09-01

申请人： Xuejun Zhang ,  Jianjun Zhou

发明人： Xuejun Zhang ,  Jianjun Zhou

IPC分类号： H03F1/42 ,  H03F3/21 ,  H03F3/45 ,  H03G1/00

CPC分类号： H03F3/211 ,  H03F1/42 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/39 ,  H03F2203/45481 ,  H03G1/0023

摘要： A single-stage amplifier includes (1) first and second “gain” transistors coupled in a common source configuration, (2) first and second resistors providing self-biasing for the first and second transistors, respectively, (3) first and second current sources providing bias currents for the first and second transistors, respectively, and (4) a load impedance coupled between the drains of the first and second transistors. The amplifier may further include (5) third and fourth “compensation” transistors coupled in parallel with, and used to compensate parasitic capacitances of, the first and second transistors, respectively, and (6) third and fourth resistors providing self-biasing for the third and fourth transistors, respectively. Variable gain may be achieved by varying the bias currents for the gain transistors. A two-stage amplifier may be formed with two stages coupled in cascade, with each stage including most or all of the circuit elements of the single-stage amplifier.

摘要翻译： 单级放大器包括（1）以公共源配置耦合的第一和第二“增益”晶体管，（2）分别为第一和第二晶体管提供自偏压的第一和第二电阻器，（3）第一和第二电流 源极分别为第一和第二晶体管提供偏置电流，以及（4）耦合在第一和第二晶体管的漏极之间的负载阻抗。 放大器还可以包括（5）分别与第一和第二晶体管并联耦合并用于补偿第一和第二晶体管的寄生电容的第三和第四“补偿”晶体管，以及（6）第三和第四电阻器为 第三和第四晶体管。 可以通过改变增益晶体管的偏置电流来实现可变增益。 可以形成两级放大器，其级联耦合两级，每级包括单级放大器的大部分或全部电路元件。

公开(公告)号：US07602246B2

公开(公告)日：2009-10-13

申请号：US10932545

申请日：2004-09-01

申请人： Xuejun Zhang ,  Jianjun Zhou

发明人： Xuejun Zhang ,  Jianjun Zhou

IPC分类号： H03F3/45 ,  H03F3/16

CPC分类号： H03F3/211 ,  H03F1/42 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/39 ,  H03F2203/45481 ,  H03G1/0023

摘要： A single-stage amplifier includes (1) first and second “gain” transistors coupled in a common source configuration, (2) first and second resistors providing self-biasing for the first and second transistors, respectively, (3) first and second current sources providing bias currents for the first and second transistors, respectively, and (4) a load impedance coupled between the drains of the first and second transistors. The amplifier may further include (5) third and fourth “compensation” transistors coupled in parallel with, and used to compensate parasitic capacitances of, the first and second transistors, respectively, and (6) third and fourth resistors providing self-biasing for the third and fourth transistors, respectively. Variable gain may be achieved by varying the bias currents for the gain transistors. A two-stage amplifier may be formed with two stages coupled in cascade, with each stage including most or all of the circuit elements of the single-stage amplifier.

摘要翻译： 单级放大器包括（1）以公共源配置耦合的第一和第二“增益”晶体管，（2）分别为第一和第二晶体管提供自偏压的第一和第二电阻器，（3）第一和第二电流 源极分别为第一和第二晶体管提供偏置电流，以及（4）耦合在第一和第二晶体管的漏极之间的负载阻抗。 放大器还可以包括（5）分别与第一和第二晶体管并联耦合并用于补偿第一和第二晶体管的寄生电容的第三和第四“补偿”晶体管，以及（6）第三和第四电阻器为 第三和第四晶体管。 可以通过改变增益晶体管的偏置电流来实现可变增益。 可以形成两级放大器，其级联耦合两级，每级包括单级放大器的大部分或全部电路元件。

公开(公告)号：US20100207705A1

公开(公告)日：2010-08-19

申请号：US12704716

申请日：2010-02-12

申请人： Haizhao Wang ,  Guangfu Si ,  Naier Meng ,  Bo Yang ,  Puke Zhou ,  Shengxiang Gao ,  Yi Zhang ,  Weihua Sun ,  Jianjun Zhou ,  Ke Zhang ,  Hao Li ,  Zhiwei Shang ,  Runxiao Zhang

发明人： Haizhao Wang ,  Guangfu Si ,  Naier Meng ,  Bo Yang ,  Puke Zhou ,  Shengxiang Gao ,  Yi Zhang ,  Weihua Sun ,  Jianjun Zhou ,  Ke Zhang ,  Hao Li ,  Zhiwei Shang ,  Runxiao Zhang

IPC分类号： H01P5/12

CPC分类号： H03H7/463 ,  H01P1/213 ,  H01P1/2136 ,  H01P1/2138 ,  H01P11/007 ,  H05K7/20409

摘要： The present disclosure relates to telecommunication, and in particular, to a base station Radio Frequency (RF) duplexer, an RF module, and an RF system. A base station RF apparatus provided herein includes: an enclosure, an intermediate RF processing unit, and a duplexer. The enclosure is located on the duplexer; the intermediate RF processing unit is located inside a cavity enclosed by the enclosure and the duplexer, or on the duplexer; a duplexer cavity and a heat dissipation part exist on the surface of the duplexer; the opening of the duplexer cavity is opposite to or against the enclosure; the heat dissipation part is designed to dissipate heat of the intermediate RF processing unit; and the duplexer is integrally molded. The foregoing technical solution requires no external fasteners, reduces the time of production and assembly. In addition, waterproof design and shielding design are not required, and thus improves the reliability.

摘要翻译： 本公开涉及电信，特别是涉及基站射频（RF）双工器，RF模块和RF系统。 本文提供的基站RF装置包括：外壳，中间RF处理单元和双工器。 外壳位于双工器上; 中间RF处理单元位于由外壳和双工器包围的腔内，或位于双工器上; 在双工器的表面上存在双工器腔和散热部分; 双工器腔的开口与外壳相对或相对; 散热部分设计用于散发中间RF处理单元的热量; 双工器整体模制。 上述技术方案不需要外部紧固件，减少生产和组装的时间。 另外，不需要防水设计和屏蔽设计，从而提高了可靠性。

公开(公告)号：US06819183B1

公开(公告)日：2004-11-16

申请号：US10445218

申请日：2003-05-23

申请人： Jianjun Zhou ,  Xuejun (Andy) Zhang

发明人： Jianjun Zhou ,  Xuejun (Andy) Zhang

IPC分类号： H03F304

CPC分类号： H03G1/04 ,  H03F1/301

摘要： Compensation for variations in temperature and manufacturing process of a MOSFET operating in its sub-threshold mode. The compensation may include circuitry containing at least a second MOSFET that may also operate in its sub-threshold mode. The operational characteristics of the second MOSFET may be closely matched to those of the first MOSFET, and the second MOSFET may be contained on the same substrate.

摘要翻译： 补偿在其阈值模式下工作的MOSFET的温度变化和制造工艺。 该补偿可以包括至少包含第二MOSFET的电路，该第二MOSFET也可以在其次阈值模式下工作。 第二MOSFET的操作特性可以与第一MOSFET的操作特性紧密匹配，并且第二MOSFET可以包含在同一衬底上。

公开(公告)号：US09600061B2

公开(公告)日：2017-03-21

申请号：US13812128

申请日：2011-07-26

申请人： Jianjun Zhou

发明人： Jianjun Zhou

IPC分类号： G06F1/32 ,  G06F1/26 ,  H02J1/10 ,  G06F1/30 ,  G06F11/20

摘要： The present disclosure provides a power supply module and a power supply system. The power supply module is used as a first power supply module in a computing system which further includes a second power supply module. The first power supply module and the second power supply module are cascaded in sequence. The first power supply module is in a power supplying state and the second power supply module is in an off state. The first power supply module itself is capable of automatically determining whether to turn on another power supply module or not, without any human intervention. In this way, the power distribution board can be simplified, or even eliminated, in which case the individual power supply modules can be connected by wire to reduce the cost.

公开(公告)号：US08385873B2

公开(公告)日：2013-02-26

申请号：US13118270

申请日：2011-05-27

申请人： Jianjun Zhou ,  Zhuobiao He ,  Fan Yang ,  Yusong Chi ,  Meng Wang ,  Hongyu Wang ,  Xinfang Liu ,  Min Yi ,  Xinrong Hu

发明人： Jianjun Zhou ,  Zhuobiao He ,  Fan Yang ,  Yusong Chi ,  Meng Wang ,  Hongyu Wang ,  Xinfang Liu ,  Min Yi ,  Xinrong Hu

IPC分类号： H04B1/16

CPC分类号： H04B1/26 ,  H03D7/1441 ,  H03D7/1458

摘要： An equivalent radio frequency (RF) notch filter, an RF chip, and a receiver are provided. The equivalent RF notch filter includes: a local oscillation (LO) circuit, configured to provide a LO frequency signal; configured to be connected in parallel with the main chain, and down-convert signals of the main chain; and a frequency selective circuit realized by impedance difference, configured to provide different impedances for down-converted signals with different frequencies from the mixing circuit, so as to absorb the signals that need to be suppressed.

摘要翻译： 提供等效射频（RF）陷波滤波器，RF芯片和接收器。 等效RF陷波滤波器包括：本地振荡（LO）电路，被配置为提供LO频率信号; 被配置为与主链并联连接，并降低主链的信号; 以及通过阻抗差实现的频率选择电路，被配置为针对来自混合电路的具有不同频率的下变频信号提供不同的阻抗，以便吸收需要抑制的信号。

公开(公告)号：US07995336B2

公开(公告)日：2011-08-09

申请号：US12503127

申请日：2009-07-15

申请人： Yinzhong Tang ,  Zhenyu Zhuang ,  Jie He ,  Jianjun Zhou

发明人： Yinzhong Tang ,  Zhenyu Zhuang ,  Jie He ,  Jianjun Zhou

IPC分类号： H05K7/00 ,  H01R25/00 ,  B23P21/00

CPC分类号： H05K1/119 ,  G11B33/128 ,  H04L12/66 ,  Y10T29/49904

摘要： A rear board of a blade server, a blade server and a subrack are provided. The blade server includes a front board and a back board, the rear board includes a standard ATCA interface, and the rear board is connected to the front board by the standard ATCA interface. The blade server also includes a connector configured to connect hard disks which is set on the rear board, and a portion of the rear board on which the connector is set is extended outward so as to accommodate at least two hard disks, and the at least two hard disks are connected to the connector. The blade server increases the ability of the heat dissipation ability of the front board, and the rear board supports data backup between the two hard disks and hot plug.

摘要翻译： 提供了刀片服务器，刀片服务器和子架的后板。 刀片服务器包括前板和背板，后板包括标准ATCA接口，后板通过标准ATCA接口连接到前面板。 刀片服务器还包括连接器，其被配置为连接设置在后板上的硬盘，并且后板的设置有连接器的部分向外延伸，以容纳至少两个硬盘，并且至少 两个硬盘连接到连接器。 刀片服务器增加前板散热能力，后板支持两个硬盘和热插拔之间的数据备份。

公开(公告)号：US09703363B2

公开(公告)日：2017-07-11

申请号：US13812128

申请日：2011-07-26

申请人： Jianjun Zhou

发明人： Jianjun Zhou

IPC分类号： G06F1/32 ,  G06F1/26 ,  G06F1/30 ,  H02J1/10 ,  G06F11/20

CPC分类号： G06F1/3287 ,  G06F1/263 ,  G06F1/30 ,  G06F11/2015 ,  H02J1/10 ,  Y02D10/171

摘要： The present disclosure provides a power supply module and a power supply system. The power supply module is used as a first power supply module in a computing system which further includes a second power supply module. The first power supply module and the second power supply module are cascaded in sequence. The first power supply module is in a power supplying state and the second power supply module is in an off state. The first power supply module itself is capable of automatically determining whether to turn on another power supply module or not, without any human intervention. In this way, the power distribution board can be simplified, or even eliminated, in which case the individual power supply modules can be connected by wire to reduce the cost.

公开(公告)号：US09819532B2

公开(公告)日：2017-11-14

申请号：US13593713

申请日：2012-08-24

申请人： Jianjun Zhou ,  Zhan Wu ,  Lin Xiao

发明人： Jianjun Zhou ,  Zhan Wu ,  Lin Xiao

IPC分类号： G06F15/173 ,  H04L12/24 ,  H04L29/08

CPC分类号： H04L41/00 ,  H04L67/125

摘要： A multi-service node management system includes: at least two service nodes, where each of the service node is disposed with a baseboard management controller (BMC); a module management controller (MMC), having one end configured to perform data communication with the BMC in each service node of the at least two service nodes, and the other end performing data communication with a shared module; and the shared module, on which sharing management is performed by BMCs in the service nodes through an MMC.

公开(公告)号：US20130232362A1

公开(公告)日：2013-09-05

申请号：US13812128

申请日：2011-07-26

申请人： Jianjun Zhou

发明人： Jianjun Zhou

IPC分类号： G06F1/32

CPC分类号： G06F1/3287 ,  G06F1/263 ,  G06F1/30 ,  G06F11/2015 ,  H02J1/10 ,  Y02D10/171

摘要： The present disclosure provides a power supply module and a power supply system. The power supply module is used as a first power supply module in a computing system which further includes a second power supply module. The first power supply module and the second power supply module are cascaded in sequence. The first power supply module is in a power supplying state and the second power supply module is in an off state. The first power supply module itself is capable of automatically determining whether to turn on another power supply module or not, without any human intervention. In this way, the power distribution board can be simplified, or even eliminated, in which case the individual power supply modules can be connected by wire to reduce the cost.

摘要翻译： 本公开提供了电源模块和电源系统。 电源模块用作计算系统中的第一电源模块，其还包括第二电源模块。 第一电源模块和第二电源模块依次级联。 第一电源模块处于供电状态，第二电源模块处于关闭状态。 第一电源模块本身能够自动确定是否打开另一个电源模块，而无需人为干预。 以这种方式，可以简化或甚至消除配电板，在这种情况下，可以通过电线连接各个电源模块以降低成本。