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    • 6. 发明授权
    • Circuit for measuring ionization current in a combustion chamber of an internal combustion engine
    • 用于测量内燃机的燃烧室中的电离电流的电路
    • US06954074B2
    • 2005-10-11
    • US10458705
    • 2003-06-11
    • Guoming G. ZhuBruce WangKenneth L. Gould
    • Guoming G. ZhuBruce WangKenneth L. Gould
    • F02P17/12F02P17/00
    • F02P17/12F02P2017/125
    • A circuit for measuring ionization current in a combustion chamber of an internal combustion engine including an ignition coil, having a primary winding and a secondary winding, and an ignition plug. The ignition plug ignites an air/fuel mixture in the combustion chamber and produces an ignition current in response to ignition voltage from the ignition coil. A capacitor, charged by the ignition coil, provides a bias voltage producing an ionization current after ignition of the air/fuel mixture in the combustion chamber. A current mirror circuit produces an isolated current signal proportional to the ionization current. In the present invention, the ignition current and the ionization current flow in the same direction through the secondary winding of the ignition coil. The charged capacitor operates as a power source and, thus, the ignition current flows from the charged capacitor through the current mirror circuit and the ignition coil to the ignition plug.
    • 一种用于测量包括具有初级绕组和次级绕组的点火线圈的内燃机的燃烧室中的电离电流的电路和火花塞。 火花塞点燃燃烧室中的空气/燃料混合物,并响应点火线圈的点火电压产生点火电流。 由点火线圈充电的电容器在燃烧室中的空气/燃料混合物点火之后提供产生电离电流的偏置电压。 电流镜电路产生与电离电流成比例的隔离电流信号。 在本发明中,点火电流和电离电流沿着与点火线圈的次级绕组相同的方向流动。 充电的电容器作为电源工作,因此点火电流从充电的电容器流过电流镜电路和点火线圈流到火花塞。
    • 10. 发明授权
    • Modular portable personal computer having bays to receive
interchangeable modules
    • 具有用于接收可互换模块的托架的模块化便携式个人计算机
    • US06108199A
    • 2000-08-22
    • US958721
    • 1997-10-23
    • Timothy A. BonardiEric D. FuhsPeter A. OjedaWayne L. GriffinWilliam C. HallowellJohn P. WagnerBruce WangElisa E. Zappacosta
    • Timothy A. BonardiEric D. FuhsPeter A. OjedaWayne L. GriffinWilliam C. HallowellJohn P. WagnerBruce WangElisa E. Zappacosta
    • G06F1/16G06F1/18G06F1/20H05K7/10
    • G06F1/184G06F1/1601G06F1/1616G06F1/1632G06F1/1635G06F1/1654G06F1/1656G06F1/1658G06F1/1681G06F1/181G06F1/187G06F1/203G06F2200/1612
    • A modular portable personal computer includes one or more flexible bays accessible from the front surface of the computer. One or more of the flexible bays may be configured as a dual functional bay to enable the bay to interchangeably receive different modular devices, such as a modular floppy disk drive or a modular battery pack. With such a configuration, the modular floppy disk drive can be removed for portable operation and an additional battery pack installed to provide increased electrical power to the portable personal computer during portable operation. The portable personal computer is also provided with a plurality of cavities formed in a bottom surface. These cavities allow for various upgrades to be made without opening the computer housing. For example, a modular hard disk drive cavity is provided on the bottom side of the personal computer. The modular hard disk drive cavity is adapted to receive a modular hard disk drive which can be relatively easily removed and installed without opening the computer housing. In addition, a cavity may be provided which is closed by an access cover which includes one or more standard in-line memory module (SIMM) sockets to enable additional SIMMS to be added without opening the computer housing. The CPU in the modular portable personal computer can also be rather easily and quickly replaced. In particular, a cavity is formed in the bottom of the portable personal computer and carries an electrical connector that is electrically connected to the mother board. A CPU mounted on a printed circuit board (PCB) is adapted to be received in the cavity. A mating connector is provided on the PCB to enable the CPU to be connected to the motherboard. An access panel provides access to the cavity to enable the CPU to be replaced without the need to open the computer housing.
    • 模块化便携式个人计算机包括可从计算机的前表面接近的一个或多个柔性托架。 一个或多个柔性隔架可以被配置为双功能托架,以使托架可互换地接收不同的模块化设备,例如模块化软盘驱动器或模块化电池组。 通过这样的配置,可以移除模块化软盘驱动器以进行便携式操作,并且安装附加的电池组,以在便携式操作期间向便携式个人计算机提供增加的电力。 便携式个人计算机还设置有形成在底面中的多个空腔。 这些空腔允许在不打开计算机外壳的情况下进行各种升级。 例如,在个人计算机的底侧设置有模块化的硬盘驱动器腔。 模块化硬盘驱动器腔适于接收可相对容易地移除和安装而不打开计算机外壳的模块化硬盘驱动器。 此外,可以提供一个空腔,其由包括一个或多个标准的在线存储器模块(SIMM)插座的接入盖封闭,以使得能够添加附加的SIMMS而不打开计算机外壳。 模块化便携式个人计算机中的CPU也可以相当容易和快速地更换。 特别地,在便携式个人计算机的底部形成空腔并且承载电连接到母板的电连接器。 安装在印刷电路板(PCB)上的CPU适于容纳在空腔中。 在PCB上提供一个配对连接器,以使CPU能够连接到主板上。 访问面板提供对腔的访问以使得CPU能够被更换,而不需要打开计算机外壳。