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1. 发明授权

US07430259B2 Two-wire chip-to-chip interface 失效
标题翻译：二线芯片到芯片接口
公开(公告)号：US07430259B2
公开(公告)日：2008-09-30
申请号：US10850707
申请日：2004-05-21
申请人： Brian North , Douglas S. Smith
发明人： Brian North , Douglas S. Smith
IPC分类号： H04L7/00
CPC分类号： H04B3/56
摘要： A method for communicating data over a serial interface between a master device and at least one slave device is disclosed. A master device generates a preamble that is attached to a data block for transmission over the serial interface between a master device and at least one slave device. Upon receipt of the control word at the at least one slave device, the preamble is detected by the slave device. Upon detection of the preamble, the slave device is enabled to respond to information within the control word as appropriate.
摘要翻译：公开了一种通过主设备和至少一个从设备之间的串行接口传送数据的方法。主设备生成附加到数据块的前导码，用于通过主设备和至少一个从设备之间的串行接口进行传输。在至少一个从设备接收到控制字时，由从设备检测前同步码。在检测到前导码时，从属设备能够适当地响应控制字中的信息。

2. 发明授权

US07212221B2 ROS shutter system 有权
标题翻译： ROS快门系统
公开(公告)号：US07212221B2
公开(公告)日：2007-05-01
申请号：US10990564
申请日：2004-11-17
申请人： James D. Walsh , Douglas S. Smith
发明人： James D. Walsh , Douglas S. Smith
IPC分类号： G03G21/00 , G03G21/16
CPC分类号： G03G21/1666 , G03G2221/1636
摘要： Raster Output Scanner (ROS) shutter system capable of blocking and unblocking harmful radiation selectably, semi-automatically or automatically. The system and uses thereof can be applied to various fields including scanners and printers.
摘要翻译：光栅输出扫描器（ROS）快门系统能够可选择地半自动或自动地阻挡和解除有害辐射。该系统及其用途可应用于各种领域，包括扫描仪和打印机。

3. 发明授权

US5101126A Wide dynamic range transconductance stage 失效
标题翻译：宽动态范围跨度级
公开(公告)号：US5101126A
公开(公告)日：1992-03-31
申请号：US597794
申请日：1990-10-15
申请人： James R. Butler , Douglas S. Smith
发明人： James R. Butler , Douglas S. Smith
IPC分类号： H03F3/343 , H03F3/345 , H03F3/45
CPC分类号： H03F3/45085 , H03F3/45282 , H03F2203/45322 , H03F2203/45331 , H03F2203/45362 , H03F2203/45612 , H03F2203/45702
摘要： A wide dynamic range transconductance stage has two branches, each branch being composed of a plurality of transconductance circuit paths. Each circuit path has a greater transconductance than the other circuit paths for its branch within a respective sub-range of the input signal range for the stage as a whole, with each path dominating the other paths for its branch within its respective sub-range. The overall bandwidth for the stage, its g.sub.m, its noise characteristics and its input voltage range are enhanced as a result. Bandwidth and slew rate may be independently optimized by the designer. Two paths are used for each branch in the preferred embodiment, with one path consisting of a bipolar transistor and the other path either a field effect transistor or a resistor degenerated bipolar transistor. Multiple paths may be used based on the same principle.

4. 发明授权

US5055723A JFET analog switch with gate current control 失效
标题翻译：具有栅极电流控制的JFET模拟开关
公开(公告)号：US5055723A
公开(公告)日：1991-10-08
申请号：US316874
申请日：1989-02-28
申请人： Derek F. Bowers , Douglas S. Smith
发明人： Derek F. Bowers , Douglas S. Smith
IPC分类号： H03K17/06 , H03K17/16 , H03K17/687
CPC分类号： H03K17/6871 , H03K17/063 , H03K17/162
摘要： An analog switching circuit may be implemented with MESFETs without forward biasing the switching device, and is applicable to JFET switches in general. Switching currents are provided from a nominal input line which closely tracks the true analog input voltage, but is segregated therefrom. A current supply fed from the nominal input line provides transient charging current to the gate of the switching transistor during the switching transition from OFF to ON states. Voltage setting devices hold the gate and source of the enhancement-mode current supply at approximately the nominal supply voltage level when the switching transistor is ON, while a control section holds the gate and source of the current supply device at a negative reference voltage level when the switching transistor is OFF. In either case, the current supply device is inhibited from delivering gate current to the switching transistor during steady state operation.

5. 发明授权

US07420169B2 Dicorotron wire assembly removal-insertion tool 有权
标题翻译： Dicorotron电线组件拆卸插入工具
公开(公告)号：US07420169B2
公开(公告)日：2008-09-02
申请号：US11235935
申请日：2005-09-27
申请人： Bruce J. Parks , Jamie S. Clayfield , Douglas S. Smith , James D. Walsh , Eliud Robles Flores , Gerald F. Daloia
发明人： Bruce J. Parks , Jamie S. Clayfield , Douglas S. Smith , James D. Walsh , Eliud Robles Flores , Gerald F. Daloia
IPC分类号： H01T19/00
CPC分类号： H01T19/00 , G03G15/0258 , G03G15/0291 , G03G2215/027 , Y10T29/53 , Y10T29/53587 , Y10T29/53613
摘要： Electrostatic printing processes utilize corona-charging units. When those units wear out or become faulty, they need to be replaced. This embodiment provides a tool that can be used to remove a faulty electrode wire assembly from the unit. This same tool when loaded with a new wire assembly can insert a new wire assembly into the emptied corona charging unit, sometimes referred to as a dicorotron unit. The tool, therefore, is used both to remove or insert a wire assembly from or into a dicorotron unit.
摘要翻译：静电印刷工艺利用电晕充电装置。当这些装置出现故障或故障时，需要更换。该实施例提供了可用于从该单元去除故障的电极线组件的工具。当装入新的电线组件时，这个相同的工具可以将新的电线组件插入空的电晕充电单元中，有时称为二导筒单元。因此，该工具既可用于将导线组件从二氯氰酸纤维单元中取出或插入到二氯氰菊酯单元中。

6. 发明授权

US5469104A Active folded cascode 失效
标题翻译：主动折叠共源共栅
公开(公告)号：US5469104A
公开(公告)日：1995-11-21
申请号：US218726
申请日：1994-03-28
申请人： Douglas S. Smith , Edward C. Bee
发明人： Douglas S. Smith , Edward C. Bee
IPC分类号： H03F1/22 , H03F3/45 , H03F1/56
CPC分类号： H03F3/45192 , H03F1/22 , H03F1/223 , H03F2203/45028 , H03F2203/45122 , H03F2203/45126
摘要： An active folded cascode includes an amplifier transistor and a source follower transistor configured as a folded cascode with the drain of the amplifier transistor and the source of the follower transistor connected to form a gain node. A feedback transistor has its gate and drain connected to the source and gate of the follower transistor while bias current provided to the drain of the feedback transistor by a current source maintains the gain node at a fixed voltage with respect to a reference voltage. Coupling of the voltage at the gain node to the gate of the source follower transistor by the feedback transistor reduces the effective source impedance of the source follower transistor, providing improved gain and bandwidth properties for the active folded cascode circuit.
摘要翻译：有源折叠共源共栅包括放大器晶体管和源极跟随器晶体管，其被配置为与放大器晶体管的漏极并且跟随器晶体管的源极连接以形成增益节点的折叠共源共栅。反馈晶体管的栅极和漏极连接到跟随器晶体管的源极和栅极，而通过电流源提供给反馈晶体管的漏极的偏置电流将增益节点保持在相对于参考电压的固定电压。通过反馈晶体管将增益节点处的电压耦合到源极跟随器晶体管的栅极减小了源极跟随器晶体管的有效源极阻抗，为有源折叠共源共栅电路提供改进的增益和带宽特性。

7. 发明授权

US5077494A Wide temperature range MESFET logic circuit 失效
标题翻译：宽温度范围MESFET逻辑电路
公开(公告)号：US5077494A
公开(公告)日：1991-12-31
申请号：US396536
申请日：1989-08-21
申请人： Derek F. Bowers , Douglas S. Smith
发明人： Derek F. Bowers , Douglas S. Smith
IPC分类号： H03K19/003 , H03K19/0952
CPC分类号： H03K19/00384 , H03K19/0952
摘要： A first Schottky diode is connected between the source of a first enhancement JFET and a low voltage line. The drain of the first enhancement JFET is connected through a first active load current source to a high voltage line, and also through a second Schottky diode and a second active load current source to the low voltage line. The first Schottky diode produces a voltage drop which maintains the source of the first enhancement JFET positive with respect to the low voltage line. The second Schottky diode produces a voltage drop complementary to that of the first Schottky diode, which causes the circuit to produce an output voltage across the second current source having a logically low level close to that of the low voltage line. This low output voltage positively turns off a first enhancement JFET of a next stage even at elevated temperatures where the voltage threshold is close to zero, since the source of the first enhancement JFET is held positive at one diode drop above the low voltage line by the first Schottky diode. A second enhancement JFET may be connected to supply current which maintains the first Schottky diode conductive at all times, and also to provide positive feedback to the first enhancement JFET by source coupling through the resistance of the first Schottky diode which enhances switching.

8. 发明授权

US4933572A Dual mode voltage reference circuit and method 失效
标题翻译：双模参考电压和方式
公开(公告)号：US4933572A
公开(公告)日：1990-06-12
申请号：US418908
申请日：1989-10-05
申请人： Douglas S. Smith , Derek F. Bowers
发明人： Douglas S. Smith , Derek F. Bowers
IPC分类号： G05F1/56
CPC分类号： G05F1/56
摘要： A voltage reference circuit is described which is capable of providing either an internally generated voltage having a trimming capability, or an externally generated voltage, with the use of only two pins. The internal voltage is connected through an interrupt circuit to an input/output terminal, which can also receive an externally generated voltage. A trimming terminal is used to apply trimming voltage signals to adjust the internally generated voltage. To convert from the internal to the external voltage source, an interrupt voltage is applied to the trimming terminal which is outside of the normal trimming voltage range. This interrupt voltage actuates an interrupt circuit to interrupt the connection between the internal voltage source and input/output terminal, leaving the output terminal available for the external voltage source.
摘要翻译：描述了一种电压参考电路，其能够仅使用两个引脚来提供具有微调能力的内部产生的电压或外部产生的电压。内部电压通过中断电路连接到输入/输出端子，也可以接收外部产生的电压。微调终端用于施加微调电压信号以调整内部产生的电压。要从内部电压转换为外部电压源，将中断电压施加到正常微调电压范围之外的微调端子。该中断电压使中断电路中断内部电压源和输入/输出端子之间的连接，使输出端子可用于外部电压源。

9. 发明申请

US20080307638A1 DICOROTRON WIRE ASSEMBLY REMOVAL AND STORAGE TOOL 有权
标题翻译： DICOROTRON线组件拆卸和存储工具
公开(公告)号：US20080307638A1
公开(公告)日：2008-12-18
申请号：US12200136
申请日：2008-08-28
申请人： Bruce J. Parks , Jamie S. Clayfield , Douglas S. Smith , James D. Walsh , Eliud Robles Flores , Gerald F. Daloia
发明人： Bruce J. Parks , Jamie S. Clayfield , Douglas S. Smith , James D. Walsh , Eliud Robles Flores , Gerald F. Daloia
IPC分类号： B23P19/04
CPC分类号： G03G15/0258 , G03G15/0291 , G03G21/1661 , G03G2215/027 , G03G2215/1609 , G03G2221/1693 , Y10T29/5313 , Y10T29/53174 , Y10T29/53213 , Y10T29/53217 , Y10T29/53274
摘要： A system and apparatus that removes and collects non-functional wire assemblies from dicorotron units is described. It has a removal tool with flexible levers mounted on the top of a storage box. The removal tool has an open top and bottom, the open bottom is aligned with an opening in the top of the box to permit a dislodged anchor and wire assembly to fall therethrough.
摘要翻译：描述了从双卡方器单元去除和收集非功能线组件的系统和装置。它具有安装在储物箱顶部的柔性杠杆的拆卸工具。拆卸工具具有敞开的顶部和底部，敞开的底部与盒的顶部中的开口对准以允许移动的锚固件和线组件从其中落下。

10. 发明授权

US07432504B2 Dicorotron wire assembly removal and storage tool 有权
标题翻译： Dicorotron电线组件拆卸和存储工具
公开(公告)号：US07432504B2
公开(公告)日：2008-10-07
申请号：US11235936
申请日：2005-09-27
申请人： Bruce J. Parks , Jamie S. Clayfield , Douglas S. Smith , James D. Walsh , Eliud Robles Flores , Gerald F. Daloia
发明人： Bruce J. Parks , Jamie S. Clayfield , Douglas S. Smith , James D. Walsh , Eliud Robles Flores , Gerald F. Daloia
IPC分类号： H01T19/00
CPC分类号： G03G15/0258 , G03G15/0291 , G03G21/1661 , G03G2215/027 , G03G2215/1609 , G03G2221/1693 , Y10T29/5313 , Y10T29/53174 , Y10T29/53213 , Y10T29/53217 , Y10T29/53274
摘要： A system and apparatus that removes and collects non-functional wire assemblies from dicorotron units is described. It has a removal tool mounted on the top of a storage box. The removal tool has an open top and bottom, the open bottom is aligned with an opening in the top of the box to permit a dislodged wire assembly to fall therethrough.
摘要翻译：描述了从双卡方器单元去除和收集非功能线组件的系统和装置。它具有安装在储物箱顶部的拆卸工具。拆卸工具具有敞开的顶部和底部，敞开的底部与盒的顶部中的开口对齐，以允许脱落的线组件从其中落下。

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