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    • 54. 发明授权
    • Bi-directional signal transmission system
    • 双向信号传输系统
    • US07417464B2
    • 2008-08-26
    • US11856009
    • 2007-09-14
    • John Crawford
    • John Crawford
    • H03K19/0175
    • H03K19/01843H03K19/0826
    • A bi-directional signal transmission system including, a first bi-directional signal path having circuitry adapted to generate a logic high level on said first path, one or more first stations connected to the first bi-directional signal path adapted to monitor a logic level on said first path, and to generate a logic low level on said first path, an interface device operatively coupled to the first bi-directional signal path, said interface device having a first receive input also capable of functioning as an output capable of pulling the first path low; and a second bi-directional signal path coupled to a transmit output and a receive input on the buffered side of the interface device, said interface device includes a first means for generating on the first bi-directional signal path a medium logic level in response to a low level on the receive input on the buffered side, and a second means for generating on the transmit output on the buffered side, a low logic level in response to a low level on the first bi-directional signal path, otherwise generating a high level on the said transmit output, wherein the one or more first stations are adapted to detect the medium and the low levels on the first bi-directional signal path as LOW, and the high logic level on the first bi-directional signal path as HIGH, and wherein further the first means for generating the medium logic level on the first signal path includes an open collector transistor, the emitter of which is connected to VEE, with its collector pulling the first signal path low through a diode connected transistor.
    • 一种双向信号传输系统,包括具有适于在所述第一路径上产生逻辑高电平的电路的第一双向信号路径,连接到所述第一双向信号路径的一个或多个第一站适于监视逻辑电平 在所述第一路径上,并且在所述第一路径上生成逻辑低电平,可操作地耦合到所述第一双向信号路径的接口设备,所述接口设备具有第一接收输入,其还能够用作能够拉动 第一路低; 以及耦合到所述接口设备的缓冲侧上的发射输出和接收输入的第二双向信号路径,所述接口设备包括第一装置,用于在第一双向信号路径上响应于 在缓冲侧的接收输入上的低电平,以及用于在缓冲侧的发送输出上产生响应于第一双向信号路径上的低电平的低逻辑电平的第二装置,否则产生高电平 其中所述一个或多个第一站适合于将第一双向信号路径上的介质和低电平检测为低电平,并且第一双向信号路径上的高逻辑电平为HIGH ,并且其中所述用于在所述第一信号路径上产生所述介质逻辑电平的所述第一装置包括开路集电极晶体管,其发射极连接到VEE,其集电极将所述第一信号路径拉低 通过二极管连接晶体管。
    • 57. 发明申请
    • Container air freshener unit
    • 集装箱空气清新剂单元
    • US20050274819A1
    • 2005-12-15
    • US10865425
    • 2004-06-10
    • Kenneth ReedJohn CrawfordBarbara Thomas
    • Kenneth ReedJohn CrawfordBarbara Thomas
    • A61L9/04A61L9/12A24F25/00
    • A61L9/12
    • There is an air freshener unit and a combined container and air freshener unit. The air freshener unit is mounted onto the upper portion of the container and is comprised of a first section and a second section. In one embodiment the first section is a holder for a fragrance material and the second section is a cover for the first section. The second section in a first position covers and substantially seals the first section and in a second position allows air to pass through a space between the first section and the second section and deliver the fragrance material to the atmosphere exterior to the air freshener unit. In a second embodiment both the first section and the second section contain fragrance material. In the first embodiment structure the first section is comprised of a plurality of recesses which hold the fragrance material and the second section is of a conforming shape to cover and substantially seal the plurality of recesses in a first position and in a second position allows air to pass between the first section and the second section to deliver the fragrance to the exterior of the air freshener unit. In a second embodiment structure both the first section and the second section are comprised of a plurality of recesses and deliver the fragrance material in the same manner. The fragrance material is held in the recesses and is in a solid or gel form.
    • 有一个空气清新剂单元和一个组合的容器和空气清新剂单元。 空气清新器单元安装在容器的上部,并且包括第一部分和第二部分。 在一个实施例中,第一部分是用于香料的保持器,第二部分是用于第一部分的盖子。 第一位置的第二部分覆盖并基本上密封第一部分,并且在第二位置允许空气通过第一部分和第二部分之间的空间,并将芳香物质输送到空气清新器单元外部的大气。 在第二实施例中,第一部分和第二部分均包含香料。 在第一实施例结构中,第一部分包括多个保持香料的凹部,第二部分具有适形的形状,以在第一位置覆盖并基本上密封多个凹部,并且在第二位置允许空气 在第一部分和第二部分之间通过以将香料传送到空气清新器单元的外部。 在第二实施例结构中,第一部分和第二部分都由多个凹部组成,并以相同的方式输送香料。 芳香材料保持在凹部中并且是固体或凝胶形式。
    • 59. 发明授权
    • Gas generator deployed occupant protection apparatus and method
    • 气体发生器部署了乘员保护装置和方法
    • US06266926B1
    • 2001-07-31
    • US09431084
    • 1999-11-01
    • Ward FiggeKenneth GrahamJohn Crawford
    • Ward FiggeKenneth GrahamJohn Crawford
    • E04H1400
    • E06B9/0692E04H9/04E06B5/12F41H5/007
    • An apparatus and method for protecting an occupant of a building from flying debris from a frangible structure of the building, such as a window or the like, in the event of an explosion or other blast. A protective barrier is positioned adjacent the building structure and is constructed to be deployed by inflation of at least a portion thereof. The protective barrier is movable from a stored position adjacent the building structure to a deployed position in which it covers the building structure. A gas generating device is connected to the protective barrier and is operable to generate gas to inflate the protective barrier and move it to the deployed position in response to the sensing of an explosion or other blast by a sensing device located remote from the building.
    • 在爆炸或其他爆炸的情况下,保护建筑物的乘客的装置和方法免受建筑物的易碎结构(例如窗户等)的飞溅。 保护屏障定位在建筑物结构附近,并被构造成通过其至少一部分的膨胀来展开。 保护屏障可从邻近建筑结构的存储位置移动到其覆盖建筑结构的展开位置。 气体发生装置连接到保护屏障并且可操作以响应于通过远离建筑物的感测装置感测到爆炸或其它爆炸而产生气体以使保护屏障膨胀并将其移动到展开位置。