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140 条记录 (耗时 0.037 秒)

    Analog comparator and method
    51.
    发明授权
    Analog comparator and method 失效
    模拟比较器和方法

    公开(公告)号：US5929662A

    公开(公告)日：1999-07-27

    申请号：US963627

    申请日：1997-11-04

    申请人： Daniel D. Alexander ,  David J. Anderson

    发明人： Daniel D. Alexander ,  David J. Anderson

    IPC分类号： H03K5/24 ,  H03K5/22 ,  H03K3/02 ,  H03K3/037

    CPC分类号： H03K5/249

    摘要： A comparator (12) and method compare first and second signals (V.sub.IN+, V.sub.IN-) to provide an output signal (V.sub.O, V.sub.OB). A transistor (43) couples a supply terminal (64, 66) of the comparator to a power supply (V.sub.DD) to enable the comparator for comparing the first and second signals. When the output signal is valid, it turns off the transistor to isolates the supply terminal from the power supply. As a result, power is reduced and a change in the first and second signals is prevented from changing the output signal. When the transistor turns off, a charge is trapped on the supply terminal that unbalances the comparator and causes a comparison error. A balanced condition is restored with a discharge circuit (31-33) coupled to the supply terminal to alter the charge when a control signal (RESET) is applied.

    摘要翻译： 比较器（12）和方法比较第一和第二信号（VIN +，VIN-）以提供输出信号（VO，VOB）。 晶体管（43）将比较器的电源端子（64,66）耦合到电源（VDD），以使比较器能够比较第一和第二信号。 当输出信号有效时，会关闭晶体管以将电源端子与电源隔离。 结果，功率降低，并且防止了第一和第二信号的变化来改变输出信号。 当晶体管截止时，电源端子上的电荷被俘获，使比较器不平衡并导致比较误差。 当施加控制信号（RESET）时，利用耦合到电源端子的放电电路（31-33）来恢复平衡状态以改变电荷。

    Rotary valve actuated hydraulic steering system
    52.
    发明授权
    Rotary valve actuated hydraulic steering system 失效
    旋转阀致动液压转向系统

    公开(公告)号：US5928041A

    公开(公告)日：1999-07-27

    申请号：US20560

    申请日：1998-02-09

    申请人： David J. Anderson ,  Jason Danner

    发明人： David J. Anderson ,  Jason Danner

    IPC分类号： B63H20/12 ,  B63H25/30 ,  F15B9/12 ,  B63H5/125

    CPC分类号： B63H25/30 ,  B63H21/265 ,  F15B9/12

    摘要： A power-assist hydraulic system for use in connection with a linkage extending through a housing and mechanically coupled to an actuated member. The power-assisted hydraulic system includes a double-acting hydraulic cylinder having a rod configured for interconnection to the actuated member, an accumulator for storing pressurized hydraulic fluid and a rotary valve. The rotary valve has a valve interface for selectively connecting the hydraulic cylinder to the accumulator. The rotary valve has at least one valve piston for receiving pressurized hydraulic fluid to maintain a hydraulic balance at the valve interface. A sleeve having a bore through which the linkage can extend is mechanically coupled and movably mounted with respect to the rotary valve for moving the rotary valve between a neutral position and first and second rotated positions in response to forces between the linkage and housing. The sleeve and rotary valve cooperate to drive the hydraulic cylinder in a first or a second direction in response to the rotary valve being in the first or the second rotated position, respectively.

    摘要翻译： 一种动力辅助液压系统，用于与延伸穿过壳体并机械联接到致动构件的联动件相结合。 动力辅助液压系统包括双作用液压缸，其具有构造成与致动构件相互连接的杆，用于存储加压液压流体的储液器和旋转阀。 旋转阀具有用于选择性地将液压缸连接到蓄能器的阀接口。 旋转阀具有至少一个用于接收加压液压流体的阀活塞，以在阀接口处保持液压平衡。 具有孔的套筒具有连接件能够延伸穿过的孔，其相对于旋转阀机械联接和可移动地安装，用于响应于连杆机构和壳体之间的力而在中立位置和第一和第二旋转位置之间移动旋转阀。 套筒和旋转阀配合以响应于旋转阀分别处于第一或第二旋转位置而在第一或第二方向上驱动液压缸。

    Variable conducting element and method of programming
    53.
    发明授权
    Variable conducting element and method of programming 失效
    可变导体元件及编程方法

    公开(公告)号：US5886920A

    公开(公告)日：1999-03-23

    申请号：US982175

    申请日：1997-12-01

    申请人： Daniel S. Marshall ,  Jerald Allen Hallmark ,  David J. Anderson ,  Ellen Lan

    发明人： Daniel S. Marshall ,  Jerald Allen Hallmark ,  David J. Anderson ,  Ellen Lan

    IPC分类号： G11C11/22 ,  G11C11/24

    CPC分类号： G11C11/22 ,  G11C11/223

    摘要： A variable conducting element (10) and method for programming a constant current or constant resistance provided at output terminals (24 and 26) of a ferroelectric transistor (12). The ferroelectric transistor (12) has portions of a ferroelectric material (32A) programmed having up-polarization states separated by domain walls (34) from portions of a ferroelectric material (32B) programmed having down-polarization states. The portion of the ferroelectric material (32A) programmed in the up-polarization state forms current conduction channels between a source region (23) and a drain region (25) of the ferroelectric transistor (12). The ferroelectric transistor (12) is programmed through a capacitor (14) to adjust the charge supplied to a control terminal (22) of the ferroelectric transistor (12).

    摘要翻译： 一种用于编程在铁电晶体管（12）的输出端（24和26）处提供的恒定电流或恒定电阻的可变导体元件（10）和方法。 铁电晶体管（12）具有编程具有由畴壁（34）与被编程为具有向下极化状态的铁电材料（32B）的部分分离的上极化状态的铁电材料（32A）的部分。 以上极化状态编程的铁电材料（32A）的部分在铁电晶体管（12）的源极区（23）和漏极区（25）之间形成电流传导沟道。 铁电晶体管（12）通过电容器（14）编程，以调节提供给铁电晶体管（12）的控制端子（22）的电荷。

    Digital-to-analog converter and method of calibrating
    54.
    发明授权
    Digital-to-analog converter and method of calibrating 失效
    数模转换器和校准方法

    公开(公告)号：US5825317A

    公开(公告)日：1998-10-20

    申请号：US835244

    申请日：1997-04-07

    申请人： David J. Anderson ,  Robert M. Gardner ,  Jerald A. Hallmark

    发明人： David J. Anderson ,  Robert M. Gardner ,  Jerald A. Hallmark

    IPC分类号： H03M1/10 ,  H03M1/74

    CPC分类号： H03M1/1057 ,  H03M1/742

    摘要： A ferroelectric transistor (72) is programmed with a gate voltage that shifts a threshold voltage of the ferroelectric transistor (72). The shifted threshold voltage generates a correction current (.DELTA.I.sub.(N-1)) in a combination circuit (52) that trims an output voltage of a DAC trim circuit (50). A ferroelectric material (32) of the ferroelectric transistor (72) stores a charge in accordance with a programming voltage and allows a dynamic adjustment of the correction current (.DELTA.I.sub.(N-1)) that is used to modify the output voltage of the DAC trim circuit (50).

    摘要翻译： 铁电晶体管（72）用栅极电压编程，栅极电压使铁电晶体管（72）的阈值电压发生偏移。 偏移的阈值电压在修整DAC微调电路（50）的输出电压的组合电路（52）中产生校正电流（DELTA I（N-1））。 铁电晶体管（72）的铁电材料（32）根据编程电压存储电荷，并且允许动态调整用于修改电压的输出电压的校正电流（DELTA I（N-1）） DAC微调电路（50）。

    Substituted benzothiazoles, benzimidazoles, and benzoxazoles
    55.
    发明授权
    Substituted benzothiazoles, benzimidazoles, and benzoxazoles 失效
    取代的苯并噻唑，苯并咪唑和苯并恶唑

    公开(公告)号：US4873346A

    公开(公告)日：1989-10-10

    申请号：US778340

    申请日：1985-09-20

    申请人： David J. Anderson

    发明人： David J. Anderson

    IPC分类号： C07D235/28 ,  C07D263/58 ,  C07D277/68 ,  C07D277/74 ,  C07D277/82 ,  C07D417/12

    CPC分类号： C07D263/58 ,  C07D235/28 ,  C07D277/68 ,  C07D277/74 ,  C07D277/82 ,  C07D417/12

    摘要： The present invention provides certain novel substituted benzothiazoles, benzimidazoles and benzoxazoles which are useful as inhibitors of leukotriene biosynthesis and/or as inhibitors of the action of lipoxygenase and/or as inhibitors of mucus secretion in mammalian metabolism. They are thus employed wherever it is medically necessary or desirable to inhibit these systems.

    摘要翻译： 本发明提供某些新的取代的苯并噻唑，苯并咪唑和苯并恶唑，其可用作白三烯生物合成的抑制剂和/或作为脂氧合酶作用的抑制剂和/或作为哺乳动物代谢中粘液分泌的抑制剂。 因此，它们被用于禁止这些系统的任何医学上必需或可取的地方。

    HERMETICALLY SEALED TELECOMMUNICATIONS ENCLOSURE WITH ADAPTER ASSEMBLY
    56.
    发明申请
    HERMETICALLY SEALED TELECOMMUNICATIONS ENCLOSURE WITH ADAPTER ASSEMBLY 有权
    密封电缆外壳采用适配器组装

    公开(公告)号：US20160209605A1

    公开(公告)日：2016-07-21

    申请号：US14995864

    申请日：2016-01-14

    申请人： Yu Lu ,  Steven C. Zimmel ,  David J. Anderson

    发明人： Yu Lu ,  Steven C. Zimmel ,  David J. Anderson

    IPC分类号： G02B6/38 ,  G02B6/44

    CPC分类号： G02B6/3897 ,  G02B6/3825 ,  G02B6/4452

    摘要： A fiber optic adapter assembly is provided that sealingly mounts to a telecommunications enclosure. The adapter assembly mounts to a communications enclosure such that one of two fiber optic connectors is received into the adapter assembly outside of the enclosure and the other fiber optic connector is engaged into the adapter assembly inside of the enclosure. The enclosure is pressurized at a predetermined level, and the adapter assembly is configured to maintain the pressure within the enclosure when the adapter assembly mounts to the enclosure.

    摘要翻译： 提供了一种光纤适配器组件，其密封地安装到电信机箱。 适配器组件安装到通信外壳，使得两个光纤连接器中的一个被接收到外壳外的适配器组件中，并且另一个光纤连接器接合到外壳内部的适配器组件中。 外壳被加压到预定水平，并且适配器组件构造成当适配器组件安装到外壳时，将压力保持在外壳内。

    Method and system for searching an information retrieval system according to user-specified location information
    59.
    发明授权
    Method and system for searching an information retrieval system according to user-specified location information 有权
    根据用户指定的位置信息搜索信息检索系统的方法和系统

    公开(公告)号：US08626759B2

    公开(公告)日：2014-01-07

    申请号：US12123836

    申请日：2008-05-20

    申请人： David J. Anderson ,  Senis Busayapongchai

    发明人： David J. Anderson ,  Senis Busayapongchai

    IPC分类号： G06F17/30

    CPC分类号： G06F17/3087 ,  Y10S707/99933 ,  Y10S707/99934 ,  Y10S707/99935

    摘要： A method and system for searching an information retrieval system for items of interest that are in proximity to geographical locations provided by the user. The information retrieval system can perform a search for specified types of businesses or items of interest that surround or are in close proximity to the user's present geographical location, or a geographical location that the user has pre-configured in a database. The system receives geographical location information concerning the user's position from the wireless network carrier, which tracks the location of the user's mobile communications device. When the user desires to store a geographical location and geographical name for a future search, the information is entered into the pre-configured database. When conducting an information search at a later time, the user can narrow a search request to a geographical area in the vicinity of the stored geographical location.

    摘要翻译： 一种用于在信息检索系统中搜索与由用户提供的地理位置相邻的感兴趣的项目的方法和系统。 信息检索系统可以执行围绕或接近用户的当前地理位置的特定类型的商业或感兴趣的项目的搜索，或者用户已经在数据库中预配置的地理位置。 系统从无线网络运营商接收有关用户位置的地理位置信息，该无线网络运营商跟踪用户的移动通信设备的位置。 当用户希望存储未来搜索的地理位置和地理名称时，将信息输入到预配置的数据库中。 在稍后进行信息搜索时，用户可以将搜索请求缩小到存储的地理位置附近的地理区域。