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1. 发明授权

US6061702A Random number generator 失效
标题翻译：随机数发生器
公开(公告)号：US6061702A
公开(公告)日：2000-05-09
申请号：US939804
申请日：1997-09-30
申请人： Eric J. Hoffman
发明人： Eric J. Hoffman
IPC分类号： G06F7/58
CPC分类号： H04L9/0866 , G06F7/588
摘要： A random number generator using, for example, a voltage controlled oscillator (VCO) which receives a noise input and at least one differential oscillator. The differential oscillator(s) provided oscillator signals to a differential sense amplifier which is sampled under control of the VCO.
摘要翻译：使用例如接收噪声输入的压控振荡器（VCO）和至少一个差分振荡器的随机数发生器。差分振荡器将振荡器信号提供给在VCO的控制下进行采样的差分读出放大器。

2. 发明授权

US06522357B2 Method and apparatus for increasing retention time in image sensors having an electronic shutter 失效
标题翻译：用于增加具有电子快门的图像传感器中的保留时间的方法和装置
公开(公告)号：US06522357B2
公开(公告)日：2003-02-18
申请号：US08939808
申请日：1997-09-30
申请人： Mark A. Beiley , Eric J. Hoffman , Lawrence T. Clark
发明人： Mark A. Beiley , Eric J. Hoffman , Lawrence T. Clark
IPC分类号： H04N314
CPC分类号： H04N5/3595 , H04N5/353
摘要： In a pixel having an electronic shutter, a method of increasing the retention time of the electronic shutter is disclosed. A reset signal is employed to drive a diode node to a predetermined voltage immediately after integration is completed. A sample signal is employed to control a pass gate. The sample signal includes a state where the sample signal is a negative voltage.
摘要翻译：在具有电子快门的像素中，公开了增加电子快门的保持时间的方法。采用复位信号，在集成完成后立即将二极管节点驱动到预定电压。采样信号用于控制通过门。采样信号包括采样信号为负电压的状态。

3. 发明授权

US3577062A Zener diode reference circuit independent of input voltage changes 失效
标题翻译： ZENER二极管参考电路独立于输入电压变化
公开(公告)号：US3577062A
公开(公告)日：1971-05-04
申请号：US3577062D
申请日：1969-02-19
申请人： ERIC J HOFFMAN
发明人： HOFFMAN ERIC J
IPC分类号： G05F3/18 , G05F1/44
CPC分类号： G05F3/18
摘要： A Zener diode voltage reference circuit whose output is maintained at exactly the Zener voltage irrespective of changes in the input voltage. More particularly, since the voltage appearing across a Zener diode fluctuates slightly with changes in the Zener current, exact regulation is accomplished by maintaining the current flowing through the diode at a constant value; furthermore, the Zener current is held constant by adding to the circuit a second Zener diode which serves to extract from the first Zener diode all the current which would cause a voltage fluctuation.

4. 发明授权

US08422249B2 Apparatus for a microinverter particularly suited for use in solar power installations 失效
标题翻译：用于微型逆变器的装置，特别适用于太阳能发电装置
公开(公告)号：US08422249B2
公开(公告)日：2013-04-16
申请号：US13199319
申请日：2011-08-25
申请人： Frank G. Cooper , Eric J. Hoffman , Richard MacArthur
发明人： Frank G. Cooper , Eric J. Hoffman , Richard MacArthur
IPC分类号： H02M3/335
CPC分类号： H02J3/383 , H02M7/4807 , H02M7/53871 , Y02E10/563
摘要： A microinverter is disclosed for use in a solar power installation. The microinverter incorporates a voltage-to-current control loop that initially converts output current produced by a photovoltaic panel into a pulse width modulated output synchronized and phase-locked to the utility grid voltage. The duty cycle of that modulated output is specified by output power internally requested from the microinverter. This modulated output is converted into a full-wave rectified unipolar waveform that is converted, through a Commutator, into a bipolar AC output that is also phase-locked and synchronized to the grid voltage. The commutator uses an H-bridge composed of four FETs, with each of two diagonally-oriented pairs of these FETs being advantageously switched on substantially at zero-crossing points in the grid voltage. Switching these FETs during times of zero current and voltage, and switching each pair on for substantially an entire half-cycle of grid voltage reduces switching loss and power dissipation of the FETs and ensures that these FETs remain substantially unaffected by transients which might appear in the grid voltage.
摘要翻译：公开了一种用于太阳能发电装置的微逆变器。微逆变器包括电压 - 电流控制回路，其初始将由光伏面板产生的输出电流转换成同步并锁相到公用电网电压的脉宽调制输出。调制输出的占空比由微转换器内部要求的输出功率指定。该调制输出被转换为全波整流的单极波形，该波形通过一个换向器转换成双相交流输出，同时也锁相并与电网电压同步。换向器使用由四个FET组成的H桥，这些FET的两个对角线取向对中的每一个有利地基本上在电网电压的过零点处切换。在零电流和电压期间切换这些FET，并且每对开关几乎在电网电压的整个半周期内切换，降低了FET的开关损耗和功耗，并确保这些FET基本上不受瞬态影响，这可能出现在电网电压。

5. 发明授权

US08358506B2 Mechanical arrangement for use within galvanically-isolated, low-profile micro-inverters for solar power installations 失效
标题翻译：用于太阳能发电设备的电隔离，低调微逆变器中的机械布置
公开(公告)号：US08358506B2
公开(公告)日：2013-01-22
申请号：US12807097
申请日：2010-08-27
申请人： Frank G. Cooper , Eric J. Hoffman
发明人： Frank G. Cooper , Eric J. Hoffman
IPC分类号： H05K7/20
CPC分类号： H02M7/003 , H02J3/383 , Y02E10/563
摘要： A mechanical arrangement for use in implementing a galvanically-isolated, low-profile micro-inverter primarily, though not exclusively, intended for use with solar panels. The micro-inverter contains a circuitry assembly having a planar transformer formed of two abutting E-shaped core halves, and a chopper device assembly with all chopper devices mounted to a common thermally-conductive plate. To provide passive cooling, heat conduction paths are established, via separate compressive thermally-conductive pads, from a top surface of a top core half of the transformer and from a bottom surface of the conductive plate to large-area portions of opposing internal surfaces of top and base portions, respectively, of an enclosure. The enclosure portions, once secured together to house the circuitry and chopper device assemblies, exert a physical force through the compressive pads to effectively clamp the core halves together and eliminate air gaps that might otherwise form between abutting portions of the core halves.
摘要翻译：用于实现电隔离，低调微型逆变器的机械装置，主要但不排他地旨在用于太阳能电池板。微逆变器包含电路组件，该电路组件具有由两个邻接的E形磁芯半部形成的平面变压器，以及具有安装到公共导热板的所有斩波器装置的斩波器装置组件。为了提供被动冷却，通过单独的压缩导热焊盘，从变压器的顶部芯半部的顶表面和导电板的底表面到大面积部分的相对的内表面的大面积部分建立热传导路径分别为外壳的顶部和底部。外壳部分一旦固定在一起以容纳电路和斩波器装置组件，就会通过压缩垫施加一个物理力，以有效地将两个半体夹在一起，并消除另外可能形成在芯半部的邻接部分之间的气隙。

6. 发明授权

US07010706B2 Apparatus having a first circuit supplying a power potential to a second circuit under a first operating mode otherwise decoupling the power potential 失效
标题翻译：具有第一电路的设备，其在第一操作模式下向第二电路提供功率电势，否则去耦电源电位
公开(公告)号：US07010706B2
公开(公告)日：2006-03-07
申请号：US09834408
申请日：2001-04-13
申请人： Lawrence T. Clark , Neil F. Deutscher , Eric J. Hoffman
发明人： Lawrence T. Clark , Neil F. Deutscher , Eric J. Hoffman
IPC分类号： G06F1/26
CPC分类号： G06F1/32 , G11C5/14 , G11C5/147
摘要： Briefly, in accordance with one embodiment of the invention, an integrated circuit has a voltage regulator that is used to provide a power supply potential to a memory circuit while a logic circuit is decoupled from a power supply potential.
摘要翻译：简而言之，根据本发明的一个实施例，集成电路具有电压调节器，其用于在逻辑电路与电源电位分离的同时向存储器电路提供电源电位。

7. 发明授权

US06456110B1 Voltage level shifter having zero DC current and state retention in drowsy mode 有权
标题翻译：电压电平移位器在昏昏欲睡模式下具有零直流电流和状态保持
公开(公告)号：US06456110B1
公开(公告)日：2002-09-24
申请号：US09750110
申请日：2000-12-29
申请人： Pradeep Elamanchili , Eric J. Hoffman
发明人： Pradeep Elamanchili , Eric J. Hoffman
IPC分类号： H03K190175
CPC分类号： H03K19/0016 , H03K3/356008 , H03K3/356017 , H03K3/356069
摘要： A voltage level shifter for changing digital bit levels between devices having different voltage levels. In addition to changing the voltage levels in the normal mode, the device includes additional transistors which are activated when the system is in a drowsy mode so as to cut DC current drain and to latch outputs to ignore extraneous inputs.
摘要翻译：一种用于在具有不同电压电平的器件之间改变数字位电平的电压电平移位器。除了在正常模式下改变电压电平之外，器件还包括额外的晶体管，当系统处于困倦模式时被激活，以便切断直流电流消耗并锁存输出以忽略外部输入。

8. 发明授权

US06368933B1 Tap connections for circuits with leakage suppression capability 有权
标题翻译：点击具有泄漏抑制能力的电路的连接
公开(公告)号：US06368933B1
公开(公告)日：2002-04-09
申请号：US09464023
申请日：1999-12-15
申请人： Lawrence T. Clark , Vikas R. Amrelia , Raphael A. Soetan , Eric J. Hoffman , Tuan X. Do
发明人： Lawrence T. Clark , Vikas R. Amrelia , Raphael A. Soetan , Eric J. Hoffman , Tuan X. Do
IPC分类号： H01L2120
CPC分类号： H01L23/5286 , H01L27/0203 , H01L27/118 , H01L2924/0002 , Y10T307/582 , H01L2924/00
摘要： An integrated circuit biases the substrate and well using voltages other than those used for power and ground. Tap cells inside the standard cell circuits are removed. New tap cells used to bias the substrate and well reside outside the standard cell circuits. The location of the new voltage power rails is designated prior to placement of the tap cells in the integrated circuit. The tap cells are then strategically placed near the power rails such that metal connections are minimized. Circuit density is thus not adversely impacted by the addition of the new power rails. Transistors are also placed inside the tap cells to address electrostatic discharge issues during fabrication.
摘要翻译：集成电路利用电源和接地以外的电压来偏置衬底和阱。拆除标准电池电路内的电池。用于偏置衬底的新的抽头电池很好地驻留在标准电池电路之外。在将分接电池放置在集成电路中之前，指定新电压电源轨的位置。然后将龙头电池策略性地放置在电源轨附近，使金属连接最小化。因此，电路密度不会因添加新的电源轨而受到不利影响。晶体管也放置在抽头单元内，以解决制造过程中的静电放电问题。

9. 发明授权

US6118482A Method and apparatus for electrical test of CMOS pixel sensor arrays 失效
标题翻译： CMOS像素传感器阵列的电气测试方法和装置
公开(公告)号：US6118482A
公开(公告)日：2000-09-12
申请号：US986499
申请日：1997-12-08
申请人： Lawrence T. Clark , Mark A. Beiley , Eric J. Hoffman
发明人： Lawrence T. Clark , Mark A. Beiley , Eric J. Hoffman
IPC分类号： H04N5/367 , H04N17/00 , H04N5/335
CPC分类号： H04N5/367 , H04N17/002
摘要： CMOS pixel sensors have been of interest as replacements for CCD's in imaging applications. Such devices promise lower power and simpler system level design through fewer power supply voltages and higher functional integration. It is difficult and cost ineffective to utilize images to test active pixel sensors. Here, a method and apparatus for electrical testing of CMOS pixel sensors is described which involves electrically writing a pattern into the CMOS pixel sensors for the detection of adjacent cell shorts or stuck at faults as well as verification of read-channel circuit functionality and performance. The invention provides for an electrical testing of CMOS pixel array that is simple, time efficient and cost effective for use in, for example, production.
摘要翻译：作为CCD成像应用中的替代品，CMOS像素传感器已经成为关注的焦点。这样的器件通过更少的电源电压和更高的功能集成来承诺更低的功率和更简单的系统级设计。利用图像测试有源像素传感器是困难和成本无效的。这里描述了用于CMOS像素传感器的电测试的方法和装置，其涉及将图案电学写入CMOS像素传感器，用于检测相邻单元短路或卡在故障以及读通道电路功能和性能的验证。本发明提供了CMOS像素阵列的电气测试，其简单，时间高效并且在例如生产中使用成本有效。

10. 发明申请

US20130051092A1 APPARATUS FOR A MICROINVERTER PARTICULARLY SUITED FOR USE IN SOLAR POWER INSTALLATIONS 失效
标题翻译：特别适用于太阳能电源安装的微型转换器的设备
公开(公告)号：US20130051092A1
公开(公告)日：2013-02-28
申请号：US13199319
申请日：2011-08-25
申请人： Frank G. Cooper , Eric J. Hoffman , Richard MacArthur
发明人： Frank G. Cooper , Eric J. Hoffman , Richard MacArthur
IPC分类号： H02M5/45
CPC分类号： H02J3/383 , H02M7/4807 , H02M7/53871 , Y02E10/563
摘要： A microinverter is disclosed for use in a solar power installation. The microinverter incorporates a voltage-to-current control loop that initially converts output current produced by a photovoltaic panel into a pulse width modulated output synchronized and phase-locked to the utility grid voltage. The duty cycle of that modulated output is specified by output power internally requested from the microinverter. This modulated output is converted into a full-wave rectified unipolar waveform that is converted, through a Commutator, into a bipolar AC output that is also phase-locked and synchronized to the grid voltage. The commutator uses an H-bridge composed of four FETs, with each of two diagonally-oriented pairs of these FETs being advantageously switched on substantially at zero-crossing points in the grid voltage. Switching these FETs during times of zero current and voltage, and switching each pair on for substantially an entire half-cycle of grid voltage reduces switching loss and power dissipation of the FETs and ensures that these FETs remain substantially unaffected by transients which might appear in the grid voltage.
摘要翻译：公开了一种用于太阳能发电装置的微逆变器。微逆变器包括电压 - 电流控制回路，其初始将由光伏面板产生的输出电流转换成同步并锁相到公用电网电压的脉宽调制输出。调制输出的占空比由微转换器内部要求的输出功率指定。该调制输出被转换为全波整流的单极波形，该波形通过一个换向器转换成双相交流输出，同时也锁相并与电网电压同步。换向器使用由四个FET组成的H桥，这些FET的两个对角线取向对中的每一个有利地基本上在电网电压的过零点处接通。在零电流和电压期间切换这些FET，并且每对开关几乎在电网电压的整个半周期内切换，降低了FET的开关损耗和功耗，并确保这些FET基本上不受瞬态影响，这可能出现在电网电压。

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