公开(公告)号：US07330388B1

公开(公告)日：2008-02-12

申请号：US11234411

申请日：2005-09-23

申请人： David Chapman ,  Richard Parent

发明人： David Chapman ,  Richard Parent

IPC分类号： G11C7/02

CPC分类号： G11C7/04 ,  G11C7/065 ,  G11C7/08 ,  G11C7/12 ,  G11C11/4074 ,  G11C11/4091 ,  G11C11/4094

摘要： In one arrangement, a semiconductor memory device can include a sense amplifier circuit (300) having drive high transistors (P30/P31), drive low transistors (N31/N32) and equalization transistors (N33-N35). Such transistors can have a body bias (VbiasN, VbiasP) that varies according to the operation conditions of the semiconductor memory device. Such variations can include any of: manufacturing process variations, operating temperature, or operating voltage.

摘要翻译： 在一种布置中，半导体存储器件可以包括具有驱动高晶体管（P 30 / P 31），驱动低晶体管（N 31 / N 32）和均衡晶体管（N 33 -N 35）的读出放大器电路（300）。 这种晶体管可以具有根据半导体存储器件的操作条件而变化的体偏置（VbiasN，VbiasP）。 这种变化可以包括以下任何一种：制造工艺变化，工作温度或工作电压。

公开(公告)号：US07313041B1

公开(公告)日：2007-12-25

申请号：US10870289

申请日：2004-06-16

申请人： David Chapman ,  Richard Parent

发明人： David Chapman ,  Richard Parent

IPC分类号： G11C7/02

CPC分类号： G11C7/065 ,  G11C7/04 ,  G11C7/08 ,  G11C11/406 ,  G11C11/40615 ,  G11C11/40626 ,  G11C11/4091 ,  G11C2207/065 ,  G11C2211/4067

摘要： A semiconductor device memory device (300) can include a sense amplifier (302) enabled according to a first sense signal (setn) and a second sense signal (setp). In a sense operation, a first sense signal (setn) can be driven to a first, below ground potential. Subsequently, in the same sense operation, the first sense signal (setn) can be raised and maintained at a ground potential. Such an approach can substantially eliminate a sense amplifier stall condition that can occur under low temperature and/or low voltage operation. According to another aspect of the embodiments, a more negative logical “0” value can be written back into the memory cell during an access and/or refresh operation. This more negative value is available due to the below ground level provided during a sense operation.

摘要翻译： 半导体器件存储器件（300）可以包括根据第一感测信号（setn）使能的读出放大器（302）和第二感测信号（setp）。 在感测操作中，第一感测信号（setn）可以被驱动到第一低于地电势。 随后，在相同的感测操作中，可以提高第一感测信号（setn）并将其保持在接地电位。 这种方法可以基本上消除在低温和/或低电压操作下可能发生的读出放大器失速状态。 根据实施例的另一方面，在访问和/或刷新操作期间可以将更负的逻辑“0”值写回到存储器单元中。 由于在感测操作期间提供的地面水平较低，因此可以获得更多的负值。

公开(公告)号：US07095642B1

公开(公告)日：2006-08-22

申请号：US10799742

申请日：2004-03-12

申请人： Richard Parent ,  David Chapman

发明人： Richard Parent ,  David Chapman

IPC分类号： G11C5/02

CPC分类号： G11C29/83

摘要： A defect current contribution elimination technique may be suitable for dynamic random access memories (DRAMs) and other memory devices. A defect current can be eliminated by using an isolation circuit (106) between bitlines (102-0 and 102-1) and an associated sense amplifier circuit (104). Isolation circuit (106) can be controlled by programmable elements, such as fusible links, which are blown at wafer test to isolate the defective bitlines from the sense amplifier circuit. Isolated, defective bitlines may initially float, but based upon the type of defect, such bitlines can be resistively tied to another element, and as a result no DC current will flow. According to another implementation, controllable devices are placed between wordlines (206) and the wordline driver circuits (226-y). A current path through a defective wordline can be similarly cut-off.

摘要翻译： 缺陷电流贡献消除技术可适用于动态随机存取存储器（DRAM）和其它存储器件。 通过使用位线（102 - 0和102 - 1）之间的隔离电路（106）和相关的读出放大器电路（104）可以消除缺陷电流。 隔离电路（106）可以由诸如熔丝连接的可编程元件来控制，这些元件在晶片测试中被吹扫，以将有缺陷的位线与读出放大器电路隔离。 隔离的有缺陷的位线可能最初浮动，但是基于缺陷的类型，这样的位线可以被电阻地连接到另一个元件，因此没有直流电流流动。 根据另一实施方式，可控设备被放置在字线（206）和字线驱动器电路（226-y）之间。 通过缺陷字线的当前路径也可以类似地被截断。

公开(公告)号：US07345946B1

公开(公告)日：2008-03-18

申请号：US11234028

申请日：2005-09-23

申请人： David Chapman ,  Anupam Arora ,  Lin Ma ,  Richard Parent

发明人： David Chapman ,  Anupam Arora ,  Lin Ma ,  Richard Parent

IPC分类号： G11C8/00

CPC分类号： G11C8/08 ,  G11C11/4085

摘要： A wordline driver circuit can include single stage level shifters to translate a low voltage level (VGND to Vcc) to a high voltage level (Vnwl to Vpp). A wordline driver can further include a two-stage discharge circuit to pull down a wordline from a boosted high voltage Vpp to a boosted low voltage Vnwl. A two-stage discharge circuit can include (i) a first discharge path that can pull the wordline toward a first low voltage VGND; and (ii) a second discharge path that can pull the wordline toward a lower boosted low voltage Vnwl. Initially discharging a wordline to a first low voltage can reduce the amount of charge injected into a boosted low voltage Vnwl supply. A two-stage discharge circuit can be self timed or externally timed.

摘要翻译： 字线驱动器电路可以包括单级电平转换器，以将低电压电平（VGND到Vcc）转换到高电压电平（Vnwl到Vpp）。 字线驱动器还可以包括两级放电电路，用于将字线从升高的高电压Vpp下拉到升压的低电压Vnwl。 两级放电电路可以包括：（i）能够将字线拉向第一低电压VGND的第一放电路径; 和（ii）第二放电路径，其能够将字线拉向较低的升压低电压Vnwl。 最初将字线放电到第一低电压可以减少注入升压的低压Vnwl电源的电荷量。 两级放电电路可以自定时或外部定时。

公开(公告)号：US20120104190A1

公开(公告)日：2012-05-03

申请号：US13103183

申请日：2011-05-09

申请人： Richard Parent

发明人： Richard Parent

IPC分类号： F16M11/04 ,  F16M11/22

CPC分类号： A47G29/1216 ,  A63B61/02 ,  A63B69/0095 ,  E04H12/08 ,  E04H12/2223 ,  E04H17/22

摘要： The present invention generally relates to a support pole with a prefabricated engaging thread and method of using the same. The support pole is especially suitable for use with mailbox posts, birdhouse posts, volleyball posts, fences, or the like. The support pole may be securely inserted or removed from the ground without the need for tools. The support pole has an extended arm that extends in a substantially perpendicular manner with respect to the pole. The extended arm allows a user to apply a force perpendicular to the main support pole so as to help the user rotate the pole and therein force the pole into the ground.

摘要翻译： 本发明一般涉及具有预制接合线的支撑杆及其使用方法。 支撑杆特别适用于邮箱，鸟舍，排球柱，围栏等。 支撑杆可以牢固地插入或从地面移除，而不需要工具。 支撑杆具有相对于杆基本上垂直的方式延伸的延伸臂。 延伸臂允许使用者施加垂直于主支撑杆的力，以帮助使用者旋转杆，并在其中将杆压入地面。

公开(公告)号：US4989291A

公开(公告)日：1991-02-05

申请号：US491570

申请日：1990-03-08

申请人： Richard Parent

发明人： Richard Parent

IPC分类号： A47L9/00 ,  B25H3/00

CPC分类号： A47L9/26 ,  A47L9/0027 ,  A47L9/0063 ,  B25H3/00

摘要： There is disclosed herein a cart for computer cleaning. The cart includes a wheeled housing which defines a housing and a work surface at the top end of the frame. The housing includes a rear compartment in which a compressed gas unit, a retractable hose reel, a vacuum, and a retractable power cord are mounted. In addition, the housing includes an openable front compartment in which various tools are carried at convenient locations. The top of the cart carries a foldable work surface which may be folded to an open position wherein the computer components can be laid on the work surface. The frame defines a bottom well within which the hose reel may be partially positioned so as to lower the center of gravity and afford the cart with enhanced stability and reduce tipping susceptibility.

摘要翻译： 这里公开了一种用于计算机清洁的推车。 推车包括轮毂壳体，该轮毂壳体在框架的顶端限定壳体和工作表面。 壳体包括后隔室，其中安装有压缩气体单元，可缩回软管卷盘，真空和可伸缩电源线。 此外，壳体包括可开启的前隔室，其中各种工具在便利的位置承载。 推车的顶部带有可折叠的工作表面，其可以折叠到打开位置，其中计算机部件可以放置在工作表面上。 框架限定了底部井，其中软管卷轴可以部分地定位在其中，以便降低重心，并提供具有增强的稳定性并降低倾翻敏感性的推车。

公开(公告)号：US5113546A

公开(公告)日：1992-05-19

申请号：US599986

申请日：1990-10-19

申请人： Richard Parent

发明人： Richard Parent

IPC分类号： B25H1/04 ,  B25H3/00

CPC分类号： B25H3/00 ,  B25H1/04

摘要： This invention relates to a computer servicing cart which includes a structural frame for use in defining a housing for the cart and for use in carrying and rollably supporting said housing. The frame includes a base, uprights, and angular struts connecting the uprights and base. A cross member and a handle are secured to the uprights. Rolling means are secured to the base. Rearward rolling means are provided and includes an angularly disposed mount system for positioning larger rear wheels rearwardly for ease of rolling. The housing is formed about the frame and includes a forward section and a rearward section. The forward section is provided for carrying servicing items and the rearward section carries a vacuum tank, gas cylinder and a hose reel. The rearward section includes a depressed well section in the center thereof for receiving the hose reel in a lowered position. The top of the cart includes a foldable top for opening onto the handle and providing a work surface.

摘要翻译： 本发明涉及一种计算机维修车，其包括用于限定用于推车的外壳并用于承载和可滚动地支撑所述外壳的结构框架。 框架包括底座，立柱和连接立柱和底座的角撑杆。 横梁和手柄固定在立柱上。 滚动装置固定在基座上。 设置有向后滚动装置，并且包括一个角度设置的安装系统，用于向后定位较大的后轮以方便滚动。 壳体围绕框架形成并且包括前部和后部。 前部提供用于承载维修物品，后部装有真空罐，气瓶和软管卷盘。 后部包括在其中心的凹陷的井部分，用于将软管卷轴接收在降低的位置。 推车的顶部包括用于打开到手柄上并提供工作表面的可折叠顶部。

公开(公告)号：US09447599B1

公开(公告)日：2016-09-20

申请号：US14741703

申请日：2015-06-17

申请人： Richard Parent

发明人： Richard Parent

IPC分类号： F16M13/00 ,  E04H12/22 ,  A47G29/122 ,  E04H17/22 ,  F16B1/00

CPC分类号： E04H12/2223 ,  A47G29/1216 ,  E04H17/22 ,  F16B11/008 ,  F16B2001/0035

摘要： The present invention generally relates to a support pole having a spike unit with a prefabricated engaging thread and a method of using the same. The top of the spike unit is internally secured within a bottom opening of the support pole by an epoxy wherein the bottom of the support pole rests on a generally circular ridge of the spike unit. The support pole is especially suitable for use with mailbox posts, birdhouse posts, volleyball posts, fences, or the like. The support pole may be securely inserted or removed from the ground without the need for concrete, shovels and other numerous tools. The support pole has an opening on its exterior side for temporarily receiving a perpendicularly inserted rod which is inserted therein so as to provide leverage for driving the support pole into the ground by rotating the support pole clockwise or counter-clockwise.

摘要翻译： 本发明一般涉及具有带预制接合线的尖峰单元的支撑杆及其使用方法。 尖钉单元的顶部通过环氧树脂内部固定在支撑杆的底部开口内，其中支撑杆的底部位于尖钉单元的大致圆形的脊上。 支撑杆特别适用于邮箱，鸟舍，排球柱，围栏等。 支撑杆可以牢固地从地面上插入或移除，而不需要混凝土，铲子和其他许多工具。 支撑杆在其外侧具有开口，用于临时接收插入其中的垂直插入的杆，以便通过顺时针或逆时针旋转支撑杆来提供用于将支撑杆驱动到地面中的杠杆作用。

公开(公告)号：USD637316S1

公开(公告)日：2011-05-03

申请号：US29372384

申请日：2010-11-15

申请人： Richard Parent

设计人： Richard Parent