公开(公告)号：US08493113B2

公开(公告)日：2013-07-23

申请号：US13230371

申请日：2011-09-12

申请人： Mark A. Ferriss ,  Arun Natarajan ,  Benjamin Parker ,  Alexander Rylyakov ,  Jose A. Tierno ,  Soner Yaldiz

发明人： Mark A. Ferriss ,  Arun Natarajan ,  Benjamin Parker ,  Alexander Rylyakov ,  Jose A. Tierno ,  Soner Yaldiz

IPC分类号： H03L7/06

CPC分类号： H03L7/16 ,  H03L7/0891

摘要： A method and system for compensating for offsets when measuring parameters of a phase-locked loop (PLL). In one embodiment, a proportional path in the PLL is temporarily shut off, a measurement is made of a real time-to-zero crossing in the PLL to measure a defined parameter of the PLL, the proportional path is switched on, and the defined loop parameter is adjusted based on this measurement. In one embodiment, the real time-to-zero crossing is measured after introducing a phase step into the PLL between a reference signal and an output signal of the PLL. In an embodiment, two phase steps, having opposite polarities, are successively introduced into the PLL, and the time-to-crossing measurements resulting from these two phase steps may be averaged, and this average is used to determine a loop parameter.

摘要翻译： 一种在测量锁相环（PLL）参数时补偿偏移的方法和系统。 在一个实施例中，PLL中的比例路径被暂时关闭，测量PLL中的实时到零交叉，以测量PLL的定义参数，比例路径被接通，并且定义 基于此测量调整回路参数。 在一个实施例中，在参考信号和PLL的输出信号之间在PLL中引入相位阶跃之后，测量实时到零交叉。 在一个实施例中，具有相反极性的两个相位步骤被连续地引入到PLL中，并且由这两个阶段步骤产生的时间到交叉测量可以被平均，并且该平均值用于确定回路参数。

公开(公告)号：US20130063192A1

公开(公告)日：2013-03-14

申请号：US13230371

申请日：2011-09-12

申请人： Mark A. Ferriss ,  Arun Natarajan ,  Benjamin Parker ,  Alexander Rylyakov ,  Jose A. Tierno ,  Soner Yaldiz

发明人： Mark A. Ferriss ,  Arun Natarajan ,  Benjamin Parker ,  Alexander Rylyakov ,  Jose A. Tierno ,  Soner Yaldiz

IPC分类号： H03L7/08

CPC分类号： H03L7/16 ,  H03L7/0891

摘要： A method and system for compensating for offsets when measuring parameters of a phase-locked loop (PLL). In one embodiment, a proportional path in the PLL is temporarily shut off, a measurement is made of a real time-to-zero crossing in the PLL to measure a defined parameter of the PLL, the proportional path is switched on, and the defined loop parameter is adjusted based on this measurement. In one embodiment, the real time-to-zero crossing is measured after introducing a phase step into the PLL between a reference signal and an output signal of the PLL. In an embodiment, two phase steps, having opposite polarities, are successively introduced into the PLL, and the time-to-crossing measurements resulting from these two phase steps may be averaged, and this average is used to determine a loop parameter.

公开(公告)号：US20120215394A1

公开(公告)日：2012-08-23

申请号：US13249884

申请日：2011-09-30

申请人： Guoping Wang ,  Christopher A. Foster ,  Riccardo Morselli ,  Olivier Vanhercke ,  Todd Aznavorian ,  Arun Natarajan ,  Kousha Moaveni-Nejad

发明人： Guoping Wang ,  Christopher A. Foster ,  Riccardo Morselli ,  Olivier Vanhercke ,  Todd Aznavorian ,  Arun Natarajan ,  Kousha Moaveni-Nejad

IPC分类号： G05D1/02 ,  G06F19/00

CPC分类号： A01D41/1278 ,  A01B69/008 ,  A01D43/085 ,  G05D1/0278 ,  G05D1/0293 ,  G05D2201/0201

摘要： A control system and method is provided to control a longitudinal position of a transport vehicle relative to a harvester during an unload on the go operation and to control both the lateral position and the longitudinal position of a transport vehicle relative to a harvester during an unload on the go operation to evenly fill a receiving area of the transport vehicle with crop material from the harvester. The longitudinal position of the transport vehicle is maintained within an acceptable range by adjusting the velocity of the transport vehicle. The receiving area of the transport vehicle can be more evenly filled with crop material by adjusting the lateral position and the longitudinal position of the transport vehicle within predetermined trim distances associated with the receiving area of the transport vehicle.

摘要翻译： 提供了一种控制系统和方法，用于在卸载操作期间控制运输车辆相对于收割机的纵向位置，并且在卸载期间控制运输车辆相对于收割机的横向位置和纵向位置 通过收割机将作物材料均匀地填满运输车辆的接收区域。 运输车辆的纵向位置通过调节运输车辆的速度而保持在可接受的范围内。 运输车辆的接收区域可以通过调节运输车辆的横向位置和纵向位置在与运输车辆的接收区域相关联的预定的修剪距离内，更均匀地填充作物材料。

公开(公告)号：US20120048620A1

公开(公告)日：2012-03-01

申请号：US12868265

申请日：2010-08-25

申请人： Fergus Hopwood ,  Arun Natarajan

发明人： Fergus Hopwood ,  Arun Natarajan

IPC分类号： E21B21/08

CPC分类号： E21B21/08

摘要： A method of controlling pressure in a mud pump system includes generating a pressure limiting factor output using a pressure feedback input and a motor speed input to calculate a fluid conductance estimate, maintaining the pressure limiting factor output at a maximum value based on a pressure set-point, continuously updating a normal fluid conductance value based on the fluid conductance estimate while the pressure limiting factor output remains at the maximum value, freezing the normal fluid conductance value, if the pressure limiting factor output is less than the maximum value, calculating a change in fluid conductance based on the normal fluid conductance value and the fluid conductance estimate, generating at least one adaptive gain based on the change in fluid conductance, and controlling a motor speed of a pump in the mud pump system based on the at least one adaptive gain.

摘要翻译： 一种控制泥浆泵系统中的压力的​​方法包括使用压力反馈输入和电动机速度输入产生压力限制因子输出，以计算流体电导估计，基于压力设定值将压力限制因子输出维持在最大值， 点，当压力限制因子输出保持在最大值时，基于流体导电估计持续更新正常流体电导值，如果压力限制因子输出小于最大值，则冻结正常流体电导值，计算变化 基于正常流体导电值和流体电导估计的流体传导，基于流体传导的变化产生至少一个自适应增益，以及基于所述至少一个自适应控制来控制泥浆泵系统中的泵的电动机速度 获得。

公开(公告)号：US08606454B2

公开(公告)日：2013-12-10

申请号：US13171620

申请日：2011-06-29

申请人： Guoping Wang ,  Todd Aznavorian ,  Arun Natarajan ,  Kousha Moaveni Nejad

发明人： Guoping Wang ,  Todd Aznavorian ,  Arun Natarajan ,  Kousha Moaveni Nejad

IPC分类号： G06F7/00

CPC分类号： A01D41/1278 ,  A01B69/008 ,  A01D43/087 ,  G05D1/0278 ,  G05D1/0293 ,  G05D2201/0201

摘要： A control system and method is provided for synchronized control of a harvester and transport vehicle during unload on the go operation. The control system can maintain a desired lateral distance between the harvester and transport vehicle using swath information that is used to steer the harvester. In addition, the control system can also bring a transport vehicle into appropriate alignment with the harvester using the same swath information.

摘要翻译： 提供一种控制系统和方法，用于在卸载操作时对收割机和运输车辆的同步控制。 控制系统可以使用用于引导收割机的条线信息来保持收割机和运输车辆之间的期望的横向距离。 此外，控制系统还可以使用相同的条带信息使运输车辆与收割机适当对准。

公开(公告)号：US08248302B2

公开(公告)日：2012-08-21

申请号：US12411397

申请日：2009-03-26

申请人： Ming-Da Tsai ,  Arun Natarajan

发明人： Ming-Da Tsai ,  Arun Natarajan

IPC分类号： H01Q3/36 ,  H01P1/18

CPC分类号： H01P1/18

摘要： A reflection-type phase shifter is provided. The reflection-type phase shifter has a coupler, a first reflection load, and a second reflection load. The coupler has an input port for receiving an input signal and an isolated port for outputting an output signal due to a first reflected signal at a through port and a second reflected signal at a coupled port. The first reflection load reflects the first fraction of the input signal to thereby generate the first reflected signal. The second reflection load reflects the second fraction of the input signal to thereby generate the second reflected signal. In addition, at least one of the first and second reflection loads is a transmission line.

摘要翻译： 提供反射型移相器。 反射型移相器具有耦合器，第一反射负载和第二反射负载。 耦合器具有用于接收输入信号的输入端口和用于由于通过端口处的第一反射信号和耦合端口处的第二反射信号而输出输出信号的隔离端口。 第一反射负载反映输入信号的第一分数，从而产生第一反射信号。 第二反射负载反映输入信号的第二分数，从而产生第二反射信号。 此外，第一和第二反射负载中的至少一个是传输线。

公开(公告)号：US08517692B2

公开(公告)日：2013-08-27

申请号：US12868265

申请日：2010-08-25

申请人： Fergus Hopwood ,  Arun Natarajan

发明人： Fergus Hopwood ,  Arun Natarajan

IPC分类号： F04B49/08 ,  E21B21/08

CPC分类号： E21B21/08

摘要： A method of controlling pressure in a mud pump system includes generating a pressure limiting factor output using a pressure feedback input and a motor speed input to calculate a fluid conductance estimate, maintaining the pressure limiting factor output at a maximum value based on a pressure set-point, continuously updating a normal fluid conductance value based on the fluid conductance estimate while the pressure limiting factor output remains at the maximum value, freezing the normal fluid conductance value, if the pressure limiting factor output is less than the maximum value, calculating a change in fluid conductance based on the normal fluid conductance value and the fluid conductance estimate, generating at least one adaptive gain based on the change in fluid conductance, and controlling a motor speed of a pump in the mud pump system based on the at least one adaptive gain.

摘要翻译： 一种控制泥浆泵系统中的压力的​​方法包括使用压力反馈输入和电动机速度输入产生压力限制因子输出，以计算流体电导估计，基于压力设定值将压力限制因子输出维持在最大值， 点，当压力限制因子输出保持在最大值时，基于流体导电估计持续更新正常流体电导值，如果压力限制因子输出小于最大值，则冻结正常流体电导值，计算变化 基于正常流体导电值和流体电导估计的流体传导，基于流体传导的变化产生至少一个自适应增益，以及基于所述至少一个自适应控制来控制泥浆泵系统中的泵的电动机速度 获得。

公开(公告)号：US20120215381A1

公开(公告)日：2012-08-23

申请号：US13171620

申请日：2011-06-29

申请人： Guoping WANG ,  Todd Aznavorian ,  Arun Natarajan ,  Kousha Moaveni Nejad

发明人： Guoping WANG ,  Todd Aznavorian ,  Arun Natarajan ,  Kousha Moaveni Nejad

IPC分类号： G06F7/00

CPC分类号： A01D41/1278 ,  A01B69/008 ,  A01D43/087 ,  G05D1/0278 ,  G05D1/0293 ,  G05D2201/0201

摘要： A control system and method is provided for synchronized control of a harvester and transport vehicle during unload on the go operation. The control system can maintain a desired lateral distance between the harvester and transport vehicle using swath information that is used to steer the harvester. In addition, the control system can also bring a transport vehicle into appropriate alignment with the harvester using the same swath information.

摘要翻译： 提供一种控制系统和方法，用于在卸载操作时对收割机和运输车辆的同步控制。 控制系统可以使用用于引导收割机的条线信息来保持收割机和运输车辆之间的期望的横向距离。 此外，控制系统还可以使用相同的条带信息使运输车辆与收割机适当对准。

公开(公告)号：US20090278624A1

公开(公告)日：2009-11-12

申请号：US12411397

申请日：2009-03-26

申请人： Ming-Da Tsai ,  Arun Natarajan

发明人： Ming-Da Tsai ,  Arun Natarajan

IPC分类号： H03H7/00

CPC分类号： H01P1/18

摘要： A reflection-type phase shifter is provided. The reflection-type phase shifter has a coupler, a first reflection load, and a second reflection load. The coupler has an input port for receiving an input signal and an isolated port for outputting an output signal due to a first reflected signal at a through port and a second reflected signal at a coupled port. The first reflection load reflects the first fraction of the input signal to thereby generate the first reflected signal. The second reflection load reflects the second fraction of the input signal to thereby generate the second reflected signal. In addition, at least one of the first and second reflection loads is equivalent to a transmission line.

摘要翻译： 提供反射型移相器。 反射型移相器具有耦合器，第一反射负载和第二反射负载。 耦合器具有用于接收输入信号的输入端口和用于由于通过端口处的第一反射信号和耦合端口处的第二反射信号而输出输出信号的隔离端口。 第一反射负载反映输入信号的第一分数，从而产生第一反射信号。 第二反射负载反映输入信号的第二分数，从而产生第二反射信号。 此外，第一和第二反射负载中的至少一个等效于传输线。

公开(公告)号：US20060121869A1

公开(公告)日：2006-06-08

申请号：US11241875

申请日：2005-09-29

申请人： Arun Natarajan ,  Abbas Komijani ,  Seyed Hajimiri

发明人： Arun Natarajan ,  Abbas Komijani ,  Seyed Hajimiri

IPC分类号： H04B1/06

CPC分类号： H01Q3/42 ,  H01Q3/22

摘要： A fully integrated CMOS multi-element phased-array transmitter (transmitter) includes, in part, on-chip power amplifiers (PA), with integrated output matching. The transmitter is adapted to be configured as a two-dimensional 2-by-2 array or as a one dimensional 1-by-4 array. The transmitter uses a two step up-conversion architecture with an IF frequency of 4.8 GHz. Double-quadrature architecture for the up-conversion stages attenuates the signal at image frequencies. The phase selectors in each transmitter path have independent access to all the phases of the VCO. The double quadrature architecture results in two sets of phase selectors for each path, one for the in-phase (I) and one for the quadrature phase (Q) of the LO signal. The phase selection is done in two stages, with the first stage determining the desired VCO differential phase pair and the next stage selecting the appropriate polarity. An on-chip Balun is used for differential to single-ended conversion.