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47 条记录 (耗时 0.041 秒)

    Adaptive capacitive touch sense control circuit
    21.
    发明授权
    Adaptive capacitive touch sense control circuit 有权
    自适应电容式触控感应控制电路

    公开(公告)号：US07843249B2

    公开(公告)日：2010-11-30

    申请号：US12186791

    申请日：2008-08-06

    申请人： Zhong Zhang ,  Jiantao Cheng ,  Ke Wu ,  Chaoqun Wu

    发明人： Zhong Zhang ,  Jiantao Cheng ,  Ke Wu ,  Chaoqun Wu

    IPC分类号： H03K17/945

    CPC分类号： H03K17/962 ,  H03K2217/96073

    摘要： An adaptive capacitive touch sense control circuit includes a voltage buffer, a current setting resistor, a current mirror, a capacitor, a start comparator, an end comparator and a time-to-digital converter. The capacitor is connected with the current setting resistor. The circuit further includes a latch with a first control switch and a second control switch. The current setting resistor is switched between the ground and a voltage source through a switching element, so that when the current setting resistor is grounded, the first control switch is closed and the second control switch is opened, and when the current setting resistor is connected with the voltage source, the second control switch is closed and the first control switch is opened. An adaptive charging mode is adopted to sense a capacitance variation with a great ability of interference recognition, a simple structure, low power consumption and real time processing.

    摘要翻译： 自适应电容式触摸感测控制电路包括电压缓冲器，电流设定电阻器，电流镜，电容器，启动比较器，结束比较器和时间 - 数字转换器。 电容与电流设定电阻相连。 电路还包括具有第一控制开关和第二控制开关的锁存器。 电流设定电阻通过开关元件在接地和电压源之间切换，使得当电流设定电阻接地时，第一控制开关闭合，第二控制开关断开，当连接电流设定电阻时 利用电压源，第二控制开关闭合，第一控制开关打开。 采用自适应充电模式，以较高的干扰识别能力，简单的结构，低功耗和实时的处理能力来感测电容变化。

    THERMAL DISSOLUTION CATALYSIS METHOD FOR PREPARING LIQUID FUEL FROM LIGNITE AND THE CATALYST AND THE SOLVENT SUITABLE FOR THE METHOD
    22.
    发明申请
    THERMAL DISSOLUTION CATALYSIS METHOD FOR PREPARING LIQUID FUEL FROM LIGNITE AND THE CATALYST AND THE SOLVENT SUITABLE FOR THE METHOD 审中-公开
    用于从Lignite和催化剂制备液体燃料的热解决方案和适用于该方法的溶剂

    公开(公告)号：US20100258479A1

    公开(公告)日：2010-10-14

    申请号：US12746583

    申请日：2008-12-10

    申请人： Ke Wu ,  Chong Chen ,  Wenyi Huang ,  Pai Peng ,  Chunlai Wu

    发明人： Ke Wu ,  Chong Chen ,  Wenyi Huang ,  Pai Peng ,  Chunlai Wu

    IPC分类号： C10G1/00 ,  C10G1/06 ,  B01J31/12 ,  B01F1/00

    CPC分类号： C01G1/06 ,  B01J31/146 ,  B01J31/1805 ,  B01J31/2213 ,  B01J2531/37 ,  B01J2531/64 ,  B01J2531/842 ,  B01J2531/845 ,  C01G29/00 ,  C01G39/00 ,  C01G49/00 ,  C01G51/00

    摘要： The present invention relates to coal chemical processing, and particularly to a thermal dissolution catalysis method for preparing liquid fuel from lignite. The method comprises steps of: 1) crushing and drying lignite into coal powder; 2) stirring and mixing coal powder, a solvent and a catalyst sufficiently to form coal slurry, wherein there are 30-40% mass of coal powder, 60-70% mass of solvent, and 0.5-1% mass of catalyst relative to coal powder mass; 3) subjecting the coal slurry to thermal dissolution catalysis reaction to obtain thermal dissolution liquefied product, wherein the reaction is carried out for 30-60 minutes at a temperature 390-450° C. under a pressure 5.0-9.0 MPa; 4) separating the thermal dissolution liquefied product into gas, liquid and solid phases; and 5) upgrading the liquid product into liquid fuel. The present invention further discloses a catalyst and a solvent for use in the above method. The method according to the present invention requires moderate operation conditions and can enable organic matter in the lignite to convert at a relatively high level, the liquid fuel product, after being processed, can be used to prepare engine fuel meeting a national standard; the method requires a simple preparation apparatus, a small investment and a low cost and is a coal liquefying method meeting China's status quo.

    摘要翻译： 本发明涉及煤化学处理，特别涉及从褐煤制备液体燃料的热溶解催化方法。 该方法包括以下步骤：1）将褐煤粉碎和干燥成粉煤灰; 2）充分搅拌和搅拌煤粉，溶剂和催化剂，形成煤浆，其中煤粉含量为30-40％，溶剂质量为60-70％，催化剂质量相对于煤为0.5-1％ 粉末质量 3）对煤浆进行热溶解催化反应，得到热溶液化产物，其中在温度390-450℃，压力5.0-9.0MPa下反应30-60分钟; 4）将热溶解液化产物分离成气相，液相和固相; 和5）将液体产品升级成液体燃料。 本发明还公开了用于上述方法的催化剂和溶剂。 根据本发明的方法需要适度的操作条件，并且能够使褐煤中的有机物质以较高的水平转化，液态燃料产品经处理后可用于制备符合国家标准的发动机燃料; 该方法需要一个简单的准备装置，投资少，成本低，是符合中国现状的煤液化方法。

    ADAPTIVE CAPACITIVE TOUCH SENSE CONTROL CIRCUIT
    23.
    发明申请
    ADAPTIVE CAPACITIVE TOUCH SENSE CONTROL CIRCUIT 有权
    自适应电容式触摸感应控制电路

    公开(公告)号：US20090108914A1

    公开(公告)日：2009-04-30

    申请号：US12186791

    申请日：2008-08-06

    申请人： Zhong Zhang ,  Jiantao Cheng ,  Ke Wu ,  Chaoqun Wu

    发明人： Zhong Zhang ,  Jiantao Cheng ,  Ke Wu ,  Chaoqun Wu

    IPC分类号： H03K17/96

    CPC分类号： H03K17/962 ,  H03K2217/96073

    摘要： An adaptive capacitive touch sense control circuit includes a voltage buffer, a current setting resistor, a current mirror, a capacitor, a start comparator, an end comparator and a time-to-digital converter. The capacitor is connected with the current setting resistor. The circuit further includes a latch with a first control switch and a second control switch. The current setting resistor is switched between the ground and a voltage source through a switching element, so that when the current setting resistor is grounded, the first control switch is closed and the second control switch is opened, and when the current setting resistor is connected with the voltage source, the second control switch is closed and the first control switch is opened. An adaptive charging mode is adopted to sense a capacitance variation with a great ability of interference recognition, a simple structure, low power consumption and real time processing.

    摘要翻译： 自适应电容式触摸感测控制电路包括电压缓冲器，电流设定电阻器，电流镜，电容器，启动比较器，结束比较器和时间 - 数字转换器。 电容与电流设定电阻相连。 电路还包括具有第一控制开关和第二控制开关的锁存器。 电流设定电阻通过开关元件在接地和电压源之间切换，使得当电流设定电阻接地时，第一控制开关闭合，第二控制开关断开，当连接电流设定电阻时 利用电压源，第二控制开关闭合，第一控制开关打开。 采用自适应充电模式，以较高的干扰识别能力，简单的结构，低功耗和实时的处理能力来感测电容变化。

    Zero standby-current power-on reset circuit with Schmidt trigger sensing
    24.
    发明授权
    Zero standby-current power-on reset circuit with Schmidt trigger sensing 失效
    零待机电流上电复位电路，采用施密特触发传感

    公开(公告)号：US06288584B1

    公开(公告)日：2001-09-11

    申请号：US09679746

    申请日：2000-10-05

    申请人： Ke Wu ,  David Kwong

    发明人： Ke Wu ,  David Kwong

    IPC分类号： H03K1722

    CPC分类号： H03K17/223

    摘要： A power-up-reset circuit draws zero standby current. Rather than use a voltage divider that always draws current, a capacitive-pullup divider is used as the first stage. The capacitive-pullup divider has a capacitor to power (Vcc) and n-channel series transistors to ground. A sensing node between the capacitor and n-channel series transistors is initially pulled high to Vcc as Vcc is ramped up. The n-channel transistors remain off until Vcc reaches about 1.5 volts. Then the n-channel transistors pull the sensing node quickly to ground, ending the reset pulse. The second stage has a capacitor to ground that initially holds a threshold node low. A p-channel transistor has a gate connected to the sensing node and charges up the capacitor when the sensing node falls to ground. A third stage is triggered to change state as the capacitor is charged up by the p-channel transistor. Then a Schmidt trigger toggles, as do downstream inverter stages. A feedback signal goes low, disabling the gate of a pulldown n-channel transistor in the second stage. This disables a power-to-ground current path.

    摘要翻译： 上电复位电路吸收零待机电流。 不是使用总是吸引电流的分压器，而是使用电容上拉分压器作为第一级。 电容上拉分压器具有电容（Vcc）和n沟道串联晶体管接地。 电容器和n沟道串联晶体管之间的感测节点最初被拉高到Vcc，因为Vcc是斜坡上升的。 n沟道晶体管保持截止，直到Vcc达到约1.5伏。 然后，n沟道晶体管将感测节点快速拉到地，结束复位脉冲。 第二级具有初始保持阈值节点低的接地电容。 p沟道晶体管具有连接到感测节点的栅极，并且当感测节点落地时对电容器充电。 当电容器被p沟道晶体管充电时，第三级被触发以改变状态。 那么施密特触发器就会切换，下游的逆变器阶段也是如此。 反馈信号变为低电平，禁用第二级中的下拉式n沟道晶体管的栅极。 这将禁用电源对地电流路径。

    Dual end-fed broadside leaky-wave antenna
    25.
    发明授权
    Dual end-fed broadside leaky-wave antenna 有权

    公开(公告)号：US11545757B2

    公开(公告)日：2023-01-03

    申请号：US16720640

    申请日：2019-12-19

    申请人： Nima Bayat-Makou ,  Ke Wu ,  Ahmed Abdelwahed Kishk

    发明人： Nima Bayat-Makou ,  Ke Wu ,  Ahmed Abdelwahed Kishk

    IPC分类号： H01Q13/28 ,  H01Q13/22

    摘要： A single-layer substrate integrated directive broadside beam leaky-wave antenna is provided. Opposite ends of a leaky-wave structure are fed with anti-phase versions of a common signal, resulting in broadside frequencies being set apart from the open stopband. To achieve this, the common signal can be split into two equal length paths, one including a perfect electrical conductor (PEC) reflector and the other including a perfect magnetic conductor (PMC) reflector. Alternatively, the common signal can be split into two paths which differ in length by a half wavelength. A power splitter and feed horns can be used in the respective paths. The leaky-wave structure may have transverse slots which increase in width toward a midpoint of the structure. The antenna can be formed in a single planar portion of a lithographic structure, for example by patterning an upper conductive layer thereof.

    Systems for concurrent dual-band interferometric transceiver based on multiport architecture
    26.
    发明授权
    Systems for concurrent dual-band interferometric transceiver based on multiport architecture 有权

    公开(公告)号：US11533069B2

    公开(公告)日：2022-12-20

    申请号：US16951674

    申请日：2020-11-18

    申请人： Ke Wu ,  Pedro Cheong

    发明人： Ke Wu ,  Pedro Cheong

    IPC分类号： H04B1/00 ,  H04L5/14

    摘要： A dual-band multiport receiver apparatus and a dual-band (or multiband) multiport transmitter apparatus are disclosed. The receiver apparatus may include: a multiport circuit having a plurality of 90-degree hybrid couplers and a power divider to generate a plurality of radio frequency (RF) signals based on a dual-band signal, a plurality of diode networks connected to the multiport circuit to generate a plurality of intermediate frequency (IF) signals based on the plurality of RF signals, two analog-to-digital converters (ADCs) connected to the diodes to convert the IF signals to two digital signals, and a digital signal processor connected to the ADCs to decode information carried by the dual-band signal based on the two digital signals.