公开(公告)号：US5748025A

公开(公告)日：1998-05-05

申请号：US623969

申请日：1996-03-29

Applicant: Yong-Gee Ng ,  Jeff Greason

Inventor： Yong-Gee Ng ,  Jeff Greason

IPC: G11C17/16 ,  G11C17/18 ,  H01L27/088 ,  H03K17/0814 ,  H03K17/10 ,  H03K19/003 ,  H03K19/0175

CPC classification number: H03K17/08142 ,  G11C17/16 ,  G11C17/18 ,  H01L27/088 ,  H03K17/102 ,  H03K19/00315

Abstract: A method and an apparatus for providing a high voltage to a node of a low voltage tolerant CMOS integrated circuit process. In one embodiment, a pull up circuit is coupled between a high voltage source and the node and a pull down circuit is coupled between the node and a second voltage. The pull up circuit is configured to pull the voltage at the node to a high voltage while the pull down circuit is configured to the voltage at the node to a lower voltage. The pull down circuit includes a pair of series coupled n-channel transistors coupled between the node and the second voltage. The n-channel transistor connected to the node is a special n-channel transistor with a drain to substrate junction breakdown that is greater than the drain to substrate junction breakdown voltage of other ordinary n-channel transistors in the process. The special n-channel transistor is manufactured in an ordinary state-of-the-art CMOS integrated circuit process without adding any costly process steps.

Abstract translation: 一种用于向低电压容忍CMOS集成电路处理的节点提供高电压的方法和装置。 在一个实施例中，上拉电路耦合在高电压源和节点之间，并且下拉电路耦合在节点和第二电压之间。 上拉电路被配置为将节点处的电压拉到高电压，同时将下拉电路配置为节点处的电压到较低的电压。 下拉电路包括耦合在节点和第二电压之间的一对串联耦合的n沟道晶体管。 连接到节点的n沟道晶体管是具有漏极到衬底结击穿的特殊的n沟道晶体管，其在该过程中大于其它普通n沟道晶体管的漏极到衬底结击穿电压。 特殊的n沟道晶体管是在普通的最先进的CMOS集成电路工艺中制造的，而不增加任何昂贵的工艺步骤。

公开(公告)号：US20070039556A1

公开(公告)日：2007-02-22

申请号：US10574068

申请日：2004-09-30

Applicant: Alan Cook ,  Kristin Grube ,  Thomas Devlin ,  Jeff Greason ,  Karl Ulrich ,  Nathan Ulrich ,  Chi Yau

Inventor： Alan Cook ,  Kristin Grube ,  Thomas Devlin ,  Jeff Greason ,  Karl Ulrich ,  Nathan Ulrich ,  Chi Yau

IPC: A01K29/00

CPC classification number: A01K1/0114 ,  A01K1/011

Abstract: A self-cleaning litter box is disclosed which provides various advantages over the prior art. In particular, in one embodiment, the self-cleaning litter box is configured to use a cartridge which may include a litter compartment and a waste compartment. In another embodiment, the cartridge may be non-compartmentalized. The cartridge may be disposable, thus eliminating the need for the user to clean the litter tray and handle heavy litter containers. In other embodiments, the system includes a rake assembly configured with a drive assembly that is protected from contamination. In accordance with another embodiment of the invention, the self-cleaning litter box is configured to be used with all types of litter including crystal type litter.

Abstract translation: 公开了一种自清洁的垃圾箱，其提供了相对于现有技术的各种优点。 特别地，在一个实施例中，自清洁垃圾箱被配置为使用可包括垃圾箱和废物隔间的盒。 在另一个实施例中，盒可以是非隔室的。 墨盒可以是一次性的，因此消除了用户清洁垃圾托盘和处理重的垃圾容器的需要。 在其他实施例中，系统包括配置有被保护以防止污染的驱动组件的耙组件。 根据本发明的另一实施例，自清洁垃圾箱被配置为与包括晶体型垃圾的所有类型的垃圾一起使用。