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    Ink cartridge vending machine
    52.
    发明授权
    Ink cartridge vending machine 有权
    墨盒自动售货机

    公开(公告)号：US08005718B2

    公开(公告)日：2011-08-23

    申请号：US12793817

    申请日：2010-06-04

    Applicant: Tong-Nam-Samuel Low ,  Yu Zhao ,  Poovendhran S/O Kannayah ,  Ling Hwee Vincent Ong

    Inventor： Tong-Nam-Samuel Low ,  Yu Zhao ,  Poovendhran S/O Kannayah ,  Ling Hwee Vincent Ong

    IPC: G06F17/60

    CPC classification number: G06Q30/02 ,  B41J2/17509 ,  G06Q20/20 ,  G06Q20/382 ,  G06Q30/016 ,  G06Q30/0222 ,  G06Q30/0227 ,  G06Q30/0234 ,  G07F7/06

    Abstract: A vending machine capable of refilling used ink cartridges as well as dispensing filled ink cartridges is closed. The vending machine includes at least one cartridge receptacle for receiving an ink cartridge, a user interface, a display unit, a nozzle health check module, a printhead servicing module, an ink reservoir, an ink refilling unit, a compartment containing new ink cartridges, a compartment containing filled, second-hand ink cartridges, and a recycle compartment for receiving discarded ink cartridges. The user is presented by the display unit with the option of (a) refilling a used cartridge, (b) purchasing a filled cartridge, or (c) returning a used cartridge in exchange for a purchase rebate or a discount voucher. When the user selects the option of refilling, the vending machine executes a refilling subroutine which includes checking the nozzle health.

    Abstract translation: 能够重新填充用过的墨盒以及分配填充的墨盒的自动售货机关闭。 自动售货机包括用于接收墨盒的至少一个墨盒容器，用户界面，显示单元，喷嘴健康检查模块，打印头维修模块，墨水储存器，墨水补充单元，包含新墨盒的隔室， 包含填充的二手墨盒的隔室和用于接收废弃墨盒的再循环隔间。 用户由显示单元呈现，可选择（a）重新填充用过的墨盒，（b）购买填充的墨盒，或（c）返回用过的墨盒以换取购买回扣或折扣券。 当用户选择重新填充的选项时，自动售货机执行重新填充子程序，其包括检查喷嘴的健康状况。

    AMPLIFIER WITH VARIABLE MATCHING CIRCUIT TO IMPROVE LINEARITY
    54.
    发明申请
    AMPLIFIER WITH VARIABLE MATCHING CIRCUIT TO IMPROVE LINEARITY 有权
    具有可变匹配电路的放大器，以提高线性度

    公开(公告)号：US20110037519A1

    公开(公告)日：2011-02-17

    申请号：US12699659

    申请日：2010-02-03

    Applicant: Nathan M. Pletcher ,  Yu Zhao

    Inventor： Nathan M. Pletcher ,  Yu Zhao

    IPC: H03F3/16

    CPC classification number: H03F1/565 ,  H03F1/086 ,  H03F3/193

    Abstract: Techniques for reducing distortion and improving linearity of amplifiers are described. In an exemplary design, an apparatus includes a driver amplifier, a variable matching circuit, and a power amplifier. The driver amplifier amplifies a first RF signal and provides a second RF signal. The variable matching circuit receives the second RF signal and provides a third RF signal. The power amplifier amplifies the third RF signal and provides a fourth RF signal. The variable matching circuit matches a fixed impedance at the output of the driver amplifier to a variable impedance at the input of the power amplifier in order to improve the linearity of the amplifiers. In an exemplary design, the power amplifier includes a first transistor (e.g., an NMOS transistor) of a first type, and the variable matching circuit includes a second transistor (e.g., a PMOS transistor) of a second type that is different from the first type.

    Abstract translation: 描述了减小失真和提高放大器线性度的技术。 在示例性设计中，装置包括驱动器放大器，可变匹配电路和功率放大器。 驱动器放大器放大第一RF信号并提供第二RF信号。 可变匹配电路接收第二RF信号并提供第三RF信号。 功率放大器放大第三RF信号并提供第四RF信号。 可变匹配电路将驱动放大器输出端的固定阻抗与功率放大器输入端的可变阻抗相匹配，以提高放大器的线性度。 在示例性设计中，功率放大器包括第一类型的第一晶体管（例如，NMOS晶体管），并且可变匹配电路包括与第一类型不同的第二类型的第二晶体管（例如，PMOS晶体管） 类型。

    Ink cartridge vending machine
    55.
    发明授权
    Ink cartridge vending machine 有权
    墨盒自动售货机

    公开(公告)号：US07761331B2

    公开(公告)日：2010-07-20

    申请号：US11552518

    申请日：2006-10-24

    Applicant: Tong Nam Samuel Low ,  Yu Zhao ,  Poovendhran S/O Kannayah ,  Ling Hwee Vincent Ong

    Inventor： Tong Nam Samuel Low ,  Yu Zhao ,  Poovendhran S/O Kannayah ,  Ling Hwee Vincent Ong

    IPC: G06F17/60

    CPC classification number: G06Q30/02 ,  B41J2/17509 ,  G06Q20/20 ,  G06Q20/382 ,  G06Q30/016 ,  G06Q30/0222 ,  G06Q30/0227 ,  G06Q30/0234 ,  G07F7/06

    Abstract: A vending machine capable of refilling used ink cartridges as well as dispensing filled ink cartridges is closed. The vending machine includes at least one cartridge receptacle for receiving an ink cartridge, a user interface, a display unit, a nozzle health check module, a printhead servicing module, an ink reservoir, an ink refilling unit, a compartment containing new ink cartridges, a compartment containing filled, second-hand ink cartridges, and a recycle compartment for receiving discarded ink cartridges. The user is presented by the display unit with the option of (a) refilling a used cartridge, (b) purchasing a filled cartridge, or (c) returning a used cartridge in exchange for a purchase rebate or a discount voucher. When the user selects the option of refilling, the vending machine executes a refilling subroutine which includes checking the nozzle health.

    Abstract translation: 能够重新填充用过的墨盒以及分配填充的墨盒的自动售货机关闭。 自动售货机包括用于接收墨盒的至少一个墨盒容器，用户界面，显示单元，喷嘴健康检查模块，打印头维修模块，墨水储存器，墨水补充单元，包含新墨盒的隔室， 包含填充的二手墨盒的隔室和用于接收废弃墨盒的再循环隔间。 用户由显示单元呈现，可选择（a）重新填充用过的墨盒，（b）购买填充的墨盒，或（c）返回用过的墨盒以换取购买回扣或折扣券。 当用户选择重新填充的选项时，自动售货机执行重新填充子程序，其包括检查喷嘴的健康状况。

    Digital tunable inter-stage matching circuit
    57.
    发明授权
    Digital tunable inter-stage matching circuit 有权
    数字可调谐级间匹配电路

    公开(公告)号：US09000847B2

    公开(公告)日：2015-04-07

    申请号：US13226397

    申请日：2011-09-06

    Applicant: Yu Zhao ,  Babak Nejati ,  Nathan M Pletcher ,  Aristotele Hadjichristos

    Inventor： Yu Zhao ,  Babak Nejati ,  Nathan M Pletcher ,  Aristotele Hadjichristos

    IPC: H03F3/04 ,  H03H7/40 ,  H03F1/22 ,  H03F1/42 ,  H03F3/193

    CPC classification number: H03F1/42 ,  H03F1/223 ,  H03F3/193 ,  H03F2200/318 ,  H03H7/40

    Abstract: A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.

    Abstract translation: 描述了可以提高性能的可调谐级间匹配电路。 在示例性设计中，装置包括驱动器放大器和功率放大器。 该装置还可以包括可以在离散步骤中调节的级间匹配电路，用于匹配驱动器放大器和功率放大器之间的阻抗。 可调谐级间匹配电路可以包括一组电容器，该组的每个电容器与用于将电容器耦合到接地电压的开关串联耦合。

    Applying power to a network interface
    59.
    发明授权
    Applying power to a network interface 有权
    对网络接口施加电力

    公开(公告)号：US08181055B2

    公开(公告)日：2012-05-15

    申请号：US12381105

    申请日：2009-03-06

    Applicant: Yu Zhao ,  Lin Rong Bao ,  Kuan Chum Raymond Oei ,  Gim Sian Tan

    Inventor： Yu Zhao ,  Lin Rong Bao ,  Kuan Chum Raymond Oei ,  Gim Sian Tan

    IPC: G06F1/26

    CPC classification number: G06F1/266 ,  G06F1/3284 ,  Y02D10/159

    Abstract: A host device capable of communicating with an external network. The host device may comprise a power-application unit and a network interface. The power-application unit may receive from a power-supply unit a first power-supply output having a first voltage level and a second power-supply output having a second voltage level. The power-application unit may be controllable for producing selectively a first power-application output having a third voltage level from the first power-supply output and a second power-application output having a fourth voltage level from the second power-supply output. The network interface may transmit data to and receive data from an external network, and may be powered at least in part by the first and second power-application outputs.

    Abstract translation: 能够与外部网络通信的主机设备。 主机设备可以包括电源应用单元和网络接口。 电源应用单元可以从电源单元接收具有第一电压电平的第一电源输出和具有第二电压电平的第二电源输出。 功率施加单元可以是可控的，用于选择性地产生具有来自第一电源输出的第三电压电平的第一电力应用输出和具有来自第二电源输出的第四电压电平的第二电力应用输出。 网络接口可以向外部网络发送数据并从外部网络接收数据，并且可以至少部分地由第一和第二功率应用输出供电。

    DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT
    60.
    发明申请
    DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT 有权
    数字可调节间歇匹配电路

    公开(公告)号：US20110316636A1

    公开(公告)日：2011-12-29

    申请号：US13226397

    申请日：2011-09-06

    Applicant: Yu Zhao ,  Babak Nejati ,  Nathan M. Pletcher ,  Aristotele Hadjichristos

    Inventor： Yu Zhao ,  Babak Nejati ,  Nathan M. Pletcher ,  Aristotele Hadjichristos

    IPC: H03H11/28 ,  H03F3/04

    CPC classification number: H03F1/42 ,  H03F1/223 ,  H03F3/193 ,  H03F2200/318 ,  H03H7/40

    Abstract: A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.

    Abstract translation: 描述了可以提高性能的可调谐级间匹配电路。 在示例性设计中，装置包括驱动器放大器和功率放大器。 该装置还可以包括可以在离散步骤中调节的级间匹配电路，用于匹配驱动器放大器和功率放大器之间的阻抗。 可调谐级间匹配电路可以包括一组电容器，该组的每个电容器与用于将电容器耦合到接地电压的开关串联耦合。

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