公开(公告)号：US08051313B2

公开(公告)日：2011-11-01

申请号：US12110589

申请日：2008-04-28

申请人： Bixia Li ,  Hugh Mair ,  Minh Chau ,  Alice Wang ,  Uming Ko

发明人： Bixia Li ,  Hugh Mair ,  Minh Chau ,  Alice Wang ,  Uming Ko

IPC分类号： G06F1/00 ,  G05F1/10 ,  H03K3/02 ,  H03K17/16

CPC分类号： H03K3/0375

摘要： An apparatus, system and method for asynchronously reducing power in a power domain. In one embodiment, the method includes: (1) receiving a sleep command for the power domain, (2) receiving, upon receiving the sleep command, an affirmative retention status signal denoting that a retention area in the power domain has stored data, (3) receiving, upon receiving the sleep command, an affirmative isolation status signal that denotes that an isolation of the power domain has occurred and (4) providing a power domain off command to the power domain upon receiving at least the sleep command, the affirmative status retention signal and the affirmative status isolation signal. In another embodiment, multiple enable signals are employed to generate a “glitch-free” control for a power switch.

摘要翻译： 用于在电力域中异步降低功率的装置，系统和方法。 在一个实施例中，该方法包括：（1）接收功率域的睡眠命令，（2）在接收到睡眠命令时接收表示功率域中的保留区域已存储数据的肯定保持状态信号（ 3）在接收到睡眠命令时接收表示已经发生功率域隔离的肯定隔离状态信号，以及（4）至少在接收到睡眠命令时向功率域提供功率域关闭命令，肯定的 状态保持信号和肯定状态隔离信号。 在另一个实施例中，采用多个使能信号来产生功率开关的“无毛刺”控制。

公开(公告)号：US20090267638A1

公开(公告)日：2009-10-29

申请号：US12110589

申请日：2008-04-28

申请人： Bixia Li ,  Hugh Mair ,  Minh Chau ,  Alice Wang ,  Uming Ko

发明人： Bixia Li ,  Hugh Mair ,  Minh Chau ,  Alice Wang ,  Uming Ko

IPC分类号： H03K19/003 ,  H03K3/02

CPC分类号： H03K3/0375

摘要： An apparatus, system and method for asynchronously reducing power in a power domain. In one embodiment, the method includes: (1) receiving a sleep command for the power domain, (2) receiving, upon receiving the sleep command, an affirmative retention status signal denoting that a retention area in the power domain has stored data, (3) receiving, upon receiving the sleep command, an affirmative isolation status signal that denotes that an isolation of the power domain has occurred and (4) providing a power domain off command to the power domain upon receiving at least the sleep command, the affirmative status retention signal and the affirmative status isolation signal. In another embodiment, multiple enable signals are employed to generate a “glitch-free” control for a power switch.

摘要翻译： 用于在电力域中异步降低功率的装置，系统和方法。 在一个实施例中，该方法包括：（1）接收功率域的睡眠命令，（2）在接收到睡眠命令时接收表示功率域中的保留区域已存储数据的肯定保持状态信号（ 3）在接收到睡眠命令时接收表示已经发生功率域隔离的肯定隔离状态信号，以及（4）至少在接收到睡眠命令时向功率域提供功率域关闭命令，肯定的 状态保持信号和肯定状态隔离信号。 在另一个实施例中，采用多个使能信号来产生功率开关的“无毛刺”控制。

公开(公告)号：US20050144497A1

公开(公告)日：2005-06-30

申请号：US10750607

申请日：2003-12-29

申请人： James Song ,  Achuta Thippana ,  Minh Chau

发明人： James Song ,  Achuta Thippana ,  Minh Chau

IPC分类号： G06F1/04 ,  G06F1/10

CPC分类号： G06F1/10

摘要： In one embodiment, a method for balancing clock signals in a clock tree includes, at a register, receiving a divided input clock signal and a non-divided input clock signal and generating a first output clock signal based on the received divided input clock signal and the received non-divided input clock signal, the first output signal being associated with a first delay. The method further includes, at a delay line, receiving the non-divided input signal, delaying the non-divided input signal for a time substantially equivalent to the first delay, and generating a second output clock signal associated with a second delay substantially equal to the first delay. The method further includes: (1) receiving at a multiplexer the first output signal, the second output signal, and a select control signal indicating which of the first output signal or the second output signal to select; (2) selecting at the multiplexer either the received first output signal or the second output signal based on the select control signal; and (3) generating the selected first output signal or second output signal as a substantially balanced third output signal.

摘要翻译： 在一个实施例中，一种用于平衡时钟树中的时钟信号的方法包括：在寄存器处，接收分割的输入时钟信号和未分配的输入时钟信号，并且基于所接收的划分的输入时钟信号产生第一输出时钟信号;以及 所接收的非分割输入时钟信号，所述第一输出信号与第一延迟相关联。 该方法还包括在延迟线处接收未分割输入信号，将未分割输入信号延迟大致等于第一延迟的时间，以及产生与基本上等于第一延迟的第二延迟相关联的第二输出时钟信号 第一次延迟 该方法还包括：（1）在多路复用器处接收第一输出信号，第二输出信号和选择控制信号，该选择控制信号指示要选择的第一输出信号或第二输出信号中的哪一个; （2）基于选择控制信号在多路复用器中选择接收的第一输出信号或第二输出信号; 和（3）产生所选择的第一输出信号或第二输出信号作为基本平衡的第三输出信号。

公开(公告)号：US20060022985A1

公开(公告)日：2006-02-02

申请号：US10903750

申请日：2004-07-30

申请人： Thomas Shepherd ,  Minh Chau ,  Prabha Atluri ,  Sang-Won Song

发明人： Thomas Shepherd ,  Minh Chau ,  Prabha Atluri ,  Sang-Won Song

IPC分类号： G06F13/18 ,  G09G5/36

CPC分类号： G09G5/001 ,  G06F13/1605 ,  G09G5/395

摘要： A system comprises a display controller adapted to monitor a first-in, first-out module (“FIFO”) data level, a memory controller coupled to said display controller, and a memory coupled to said display controller and said memory controller. The memory controller permits the display controller to immediately access the memory when the FIFO data level drops below a pre-determined threshold level and no display panel horizontal or vertical blanking periods are in progress.

摘要翻译： 系统包括适于监视先入先出模块（“FIFO”）数据电平的显示控制器，耦合到所述显示控制器的存储器控​​制器以及耦合到所述显示控制器和所述存储器控制器的存储器。 存储器控制器允许显示控制器在FIFO数据电平降低到预定的阈值水平以下且没有显示面板的水平或垂直消隐期正在进行时立即访问存储器。

公开(公告)号：US20200011758A1

公开(公告)日：2020-01-09

申请号：US16350395

申请日：2018-03-27

申请人： Anshuo Liu ,  Minh Chau

发明人： Anshuo Liu ,  Minh Chau

IPC分类号： G01M1/12 ,  B64F5/50

摘要： The Lopsided Payload Carriage Gimbal in al its embodiments allow Aerial Vehicles and Water-borne vehicles to carry payloads far from the vehicle Geometric Center without significant travel of the vehicle's overall Center of Gravity. Large travel of the CG limits vehicle's performance or renders it inoperable. The embodiments rely on the interaction of the payload and the counter balancing weight through the payload link 18, balancing link 10 main link 14 and battery pylon 8 to substantially reduce the torque generated by the payload in a lopsided position. The embodiments also allow the vehicle carrying the payload to change thrust direction agilely. Finally, the embodiment acts as a mechanical stabilization device for the payload as well. This invention is adaptable to all forms of hover-capable aerial vehicles as well as water-borne vehicles.

公开(公告)号：US20190039721A1

公开(公告)日：2019-02-07

申请号：US16048584

申请日：2018-07-30

申请人： Anshuo Liu ,  Minh Chau

发明人： Anshuo Liu ,  Minh Chau

IPC分类号： B64C17/02 ,  B63B39/02

摘要： The Lopsided Payload Carriage Gimbal in all its embodiments allow Aerial Vehicles and Water-borne vehicles to carry payloads far from the vehicle Geometric Center without significant travel of the vehicle's overall Center of Gravity. Large travel of the CG limits vehicle's performance or renders it inoperable. The embodiments rely on the interaction of the payload and the counter balancing weight through the payload link 18, balancing link 10 main link 14 and battery pylon 8 to substantially reduce the torque generated by the payload in a lopsided position. The embodiments also allow the vehicle carrying the payload to change thrust direction agilely. Finally, the embodiment acts as a mechanical stabilization device for the payload as well. This invention is adaptable to all forms of hover-capable aerial vehicles as well as water-borne vehicles

公开(公告)号：US20050109097A1

公开(公告)日：2005-05-26

申请号：US10904021

申请日：2004-10-19

申请人： Christopher Bogath ,  Kimi Ceridon ,  Kate Gabler ,  Minh Chau

发明人： Christopher Bogath ,  Kimi Ceridon ,  Kate Gabler ,  Minh Chau

IPC分类号： E21B17/16 ,  E21B44/00 ,  E21B47/00 ,  E21B47/01

CPC分类号： E21B47/0006 ,  E21B17/16 ,  E21B44/00 ,  E21B47/01

摘要： An apparatus and method for determining forces on a downhole drilling tool is provided. The downhole tool is provided with a drill collar operatively connectable to the drilling tool, and a sensor mounted about the drill collar. The sensor is adapted to measure deformation of the drill collar whereby forces on the drilling tool are determined. The sensor may be part of a force measurement system, a strain gauge system or a drilling jar system. The drill collar is adapted to magnify and/or isolate the deformation applied to the drill string.

摘要翻译： 提供了一种用于确定井下钻具的力的装置和方法。 该井下工具设置有可操作地连接到钻孔工具的钻铤和围绕钻铤安装的传感器。 传感器适于测量钻铤的变形，从而确定钻具上的力。 传感器可以是力测量系统，应变计系统或钻孔系统的一部分。 钻铤适于放大和/或隔离施加到钻柱的变形。