公开(公告)号：US07729028B2

公开(公告)日：2010-06-01

申请号：US11839244

申请日：2007-08-15

申请人： Lawrence E. Lach ,  Ion V. Nicolaescu

发明人： Lawrence E. Lach ,  Ion V. Nicolaescu

IPC分类号： G02B26/08

CPC分类号： G02B26/101 ,  H04N9/3129 ,  H04N9/3173

摘要： A method and apparatus that projects a two-dimensional image is disclosed. The method may include emitting a laser beam, sweeping the laser beam with a first scan mirror along a first scan direction to form a scan line on the projection surface, and sweeping the scan line with a second scan mirror along a second scan direction generally orthogonal to the first scan direction to form a raster pattern of scan lines on the projection surface. The scanner for the first scan mirror is driven with a stimulus waveform, wherein the stimulus waveform has a fundamental frequency that is substantially equal to the resonance frequency of the scanner but also contains harmonics to achieve a nearly constant velocity of the laser beam spot during its scan across the projection surface. The stimulus thereby reduces peak laser output power and corresponding noise generation while maintaining image brightness and image quality.

摘要翻译： 公开了投影二维图像的方法和装置。 该方法可以包括发射激光束，沿着第一扫描方向用第一扫描反射镜扫描激光束，以在投影表面上形成扫描线，并且沿第二扫描方向扫描线，扫描线沿第二扫描方向大致正交 到第一扫描方向以在投影表面上形成扫描线的光栅图案。 用于第一扫描镜的扫描器由刺激波形驱动，其中刺激波形具有基本上等于扫描仪的共振频率的基本频率，但是还包含谐波以在其期间实现几乎恒定的激光束点速度 扫描投影面。 刺激因此降低峰值激光输出功率和相应的噪声产生，同时保持图像亮度和图像质量。

公开(公告)号：US06677607B2

公开(公告)日：2004-01-13

申请号：US10057367

申请日：2002-01-25

申请人： Steven M. Scheifers ,  Daniel R. Gamota ,  Paul W. Brazis, Jr. ,  Jie Zhang ,  Lawrence E. Lach

发明人： Steven M. Scheifers ,  Daniel R. Gamota ,  Paul W. Brazis, Jr. ,  Jie Zhang ,  Lawrence E. Lach

IPC分类号： H01L3524

CPC分类号： H01L51/0545 ,  H01L21/31683 ,  H01L51/0021 ,  H01L51/0512

摘要： A semiconductor device having a flexible or rigid substrate (11) having a gate electrode (21), a source electrode (61 and 101), and a drain electrode (62 and 102) formed thereon and organic semiconductor material (51, 81, and 91) disposed at least partially thereover. The gate electrode (21) has a thin dielectric layer 41 formed thereabout through oxidation. In many of the embodiments, any of the above elements can be formed through contact or non-contact printing. Sizing of the resultant device can be readily scaled to suit various needs.

摘要翻译： 一种具有柔性或刚性基板（11）的半导体器件，具有栅电极（21），源电极（61,101）和形成在其上的漏极电极（62和102）和有机半导体材料（51,81和 91）至少部分地设置在其上。 栅电极（21）具有通过氧化形成在其周围的薄介电层41。 在许多实施例中，可以通过接触或非接触印刷形成任何上述元件。 可以容易地缩放所得到的装置的尺寸以适应各种需要。

公开(公告)号：US5994997A

公开(公告)日：1999-11-30

申请号：US976467

申请日：1997-11-24

申请人： Vernon L. Brown ,  Gregory J. Dunn ,  Lawrence E. Lach

发明人： Vernon L. Brown ,  Gregory J. Dunn ,  Lawrence E. Lach

IPC分类号： H01C1/012 ,  H01C1/148 ,  H01C1/16 ,  H01C17/28 ,  H05K1/09 ,  H05K1/11 ,  H05K1/16 ,  H05K3/00 ,  H05K3/46

CPC分类号： H05K1/167 ,  H01C1/012 ,  H01C1/148 ,  H01C1/16 ,  H01C17/281 ,  H05K1/095 ,  H05K1/116 ,  H05K2201/09509 ,  H05K2203/1453 ,  H05K3/0023 ,  H05K3/4644 ,  Y10T29/49099 ,  Y10T29/49101

摘要： A thick-film resistor and a process for forming the resistor to have accurate dimensions, thereby yielding a precise resistance value. The resistor generally includes an electrically resistive layer and a pair of terminals, a first of which is surrounded by the second terminal, so as to form a region therebetween that surrounds the first terminal and separates the first and second terminals. The terminals are preferably concentric, with the second terminal and the region therebetween being annular-shaped. The resistive layer electrically connects the first and second terminals to complete the resistor. Each of the terminals has a surface that is substantially parallel to an upper and/or lower surface of the resistive layer and contacts the resistive layer. The surfaces of the terminals may be embedded in the resistive layer by printing the resistive material over the terminals, or may contact the upper or lower surface of the resistive layer by locating the terminals above or below the resistive layer. In each of these embodiments, the terminals are not limited to having edge-to-edge contact with the resistive layer, such that the interfacial resistance therebetween is minimized.

公开(公告)号：US4789798A

公开(公告)日：1988-12-06

申请号：US923539

申请日：1986-10-27

申请人： Lawrence E. Lach

发明人： Lawrence E. Lach

IPC分类号： H03K3/356 ,  H03K19/0185 ,  H03K19/092 ,  H03K3/29 ,  H03K19/094

CPC分类号： H03K3/356017 ,  H03K19/018535

摘要： A gallium arsenide device converts an ECL voltage signal to a gallium arsenide voltage signal. The device has a pair of depletion transistors for transforming the ECL voltage signal and a predetermined reference voltage into corresponding signal and reference currents to provide pull-up. A pair of enhancement transistors are connected to the pair of depletion transistor for outputting the gallium arsenide voltage signal which is representative of the ECL voltage signal. Positive feedback means for increasing the gain of the pair of enhancement transistors is provided and is connected to the pair of enhancement transistors. The predetermined reference voltage may be derived from a set voltage source or may be derived from a logical one level in the ECL circuit so as to provide temperature tracking for the gallium arsenide circuit. At least a third depletion transistor is connected to a third enhancement transistor. The third enhancement transistor has a gate connected to the output of the pair of depletion transistors. The third depletion and enhancement transistors have a substantially similar structure and topology to the pair of depletion and enhancement transistors.

摘要翻译： 砷化镓器件将ECL电压信号转换为砷化镓电压信号。 该器件具有一对耗尽晶体管，用于将ECL电压信号和预定参考电压变换成相应的信号和参考电流以提供上拉。 一对增强晶体管连接到一对耗尽晶体管，用于输出代表ECL电压信号的砷化镓电压信号。 提供了用于增加一对增强型晶体管的增益的正反馈装置，并连接到该对增强型晶体管。 预定参考电压可以从设定电压源导出，或者可以从ECL电路中的逻辑一电平导出，以便为砷化镓电路提供温度跟踪。 至少第三耗尽晶体管连接到第三增强晶体管。 第三增强晶体管具有连接到该对耗尽晶体管的输出端的栅极。 第三耗尽和增强晶体管具有与一对耗尽和增强晶体管基本相似的结构和拓扑结构。

公开(公告)号：US4712061A

公开(公告)日：1987-12-08

申请号：US831898

申请日：1986-02-24

申请人： Lawrence E. Lach

发明人： Lawrence E. Lach

IPC分类号： G01R25/00 ,  G01R29/027 ,  G04F10/00

CPC分类号： G04F10/00 ,  G01R25/00 ,  G01R29/0273

摘要： A circuit for measuring small propagation delays associated with a digital logic circuit has first and second signal paths. The first signal path in the digital logic circuit has at least a first predetermined number of devices and has an input and an output. Similarly, the second signal path in the digital logic circuit has at least a second predetermined number of devices and also has an input and an output. The first predetermined number of devices is different than the second predetermined number of devices. An input multiplexer multiplexes a predetermined input signal to the inputs of the first and second signal paths. First and second output signals are thereby produced on the outputs of the first and second signal paths, respectively. An output multiplexer causes the output signals to be combined into a single multiplexed output signal. An average propagation delay is determined from the differential area between the output signals in the multiplexed output signal.

摘要翻译： 用于测量与数字逻辑电路相关联的小传播延迟的电路具有第一和第二信号路径。 数字逻辑电路中的第一信号路径具有至少第一预定数量的设备，并且具有输入和输出。 类似地，数字逻辑电路中的第二信号路径具有至少第二预定数量的设备，并且还具有输入和输出。 第一预定数量的设备与第二预定数量的设备不同。 输入多路复用器将预定的输入信号复用到第一和第二信号路径的输入端。 因此，分别在第一和第二信号路径的输出上产生第一和第二输出信号。 输出多路复用器将输出信号组合成单个复用输出信号。 平均传播延迟由复用的输出信号中的输出信号之间的差分区域确定。

公开(公告)号：US4374328A

公开(公告)日：1983-02-15

申请号：US257825

申请日：1981-04-27

申请人： Vincent J. Tekippe ,  Lawrence E. Lach

发明人： Vincent J. Tekippe ,  Lawrence E. Lach

IPC分类号： G01K11/32 ,  G01L11/02 ,  F21V9/16 ,  G01J5/00 ,  G01J5/48

CPC分类号： G01K11/3213 ,  G01L11/02

摘要： A photoluminescent indicator apparatus having automatic feedback means to maintain the sensitivity of the indicator apparatus with respect to variations in environmental conditions. The apparatus includes a sample of photoluminescent material having a photoluminescent decay rate which varies as a function of environmental conditions. The sample is positioned in a remote location having some unknown aspect of the environment desired to be measured. The sample is optically excited with a modulating signal to generate an excitation output signal functionally dependent on the modulating signal and indicative of the unknown environmental condition. A phase detection means is provided for comparing difference in phase between a phase reference signal and the excitation output signal to generate a phase differential signal functionally related to the photoluminescent decay rate of the sample. The indicator apparatus includes an automatic feedback means for adjusting the phase reference signal in accordance with the phase differential signal.

摘要翻译： 一种具有自动反馈装置的光致发光指示装置，用于保持指示装置相对于环境条件变化的灵敏度。 该装置包括具有根据环境条件变化的光致发光衰减率的光致发光材料的样品。 样品位于具有期望测量的环境的一些未知方面的远程位置。 样品被调制信号光学激发，以产生功能上取决于调制信号并指示未知环境条件的激励输出信号。 提供相位检测装置，用于比较相位参考信号和激励输出信号之间的相位差，以产生与样本的光致发光衰减率功能相关的相位差信号。 指示装置包括根据相位差信号调整相位参考信号的自动反馈装置。

公开(公告)号：US08184359B2

公开(公告)日：2012-05-22

申请号：US11616855

申请日：2006-12-27

申请人： William F. Hoffman ,  Tomasz L. Klosowiak ,  Lawrence E. Lach ,  Junhua Liu ,  Ion V. Nicolaescu ,  Min-Xian M. Zhang

发明人： William F. Hoffman ,  Tomasz L. Klosowiak ,  Lawrence E. Lach ,  Junhua Liu ,  Ion V. Nicolaescu ,  Min-Xian M. Zhang

IPC分类号： G02B26/08

CPC分类号： H04N9/3173 ,  H04N9/3129

摘要： A laser projector display module for a handheld device may include an electronics module, a miniaturized light source module electrically connected with the electronics module, a scanner module electrically connected with the electronics module, and an optical assembly configured to direct light from the light source onto the scanner module. The scanner module and the light source module may abut the electronics module.

摘要翻译： 用于手持设备的激光投影仪显示模块可以包括电子模块，与电子模块电连接的小型化光源模块，与电子模块电连接的扫描器模块，以及配置成将来自光源的光引导到 扫描仪模块。 扫描器模块和光源模块可以邻接电子模块。

公开(公告)号：US06498358B1

公开(公告)日：2002-12-24

申请号：US09908898

申请日：2001-07-20

申请人： Lawrence E. Lach ,  Robert Lempkowski ,  Tomasz L. Klosowiak ,  Keryn Lian

发明人： Lawrence E. Lach ,  Robert Lempkowski ,  Tomasz L. Klosowiak ,  Keryn Lian

IPC分类号： H01L310336

CPC分类号： G02F1/292 ,  G02F1/025 ,  G02F1/1523 ,  H01L21/0237 ,  H01L21/02381 ,  H01L21/02439 ,  H01L21/02488 ,  H01L21/02521 ,  H01L21/8258 ,  H01L27/0605

摘要： A semiconductor structure for implementing optical beam switching includes a monocrystalline silicon substrate and an amorphous oxide material overlying the monocrystalline silicon substrate. A monocrystalline perovskite oxide material overlies the amorphous oxide material and a monocrystalline compound semiconductor material overlies the monocrystalline perovskite oxide material. An optical source component that is operable to transmit radiant energy is formed within the monocrystalline compound semiconductor layer. A diffraction grating including an electrochromic portion is optically coupled to the optical source component.

摘要翻译： 用于实现光束切换的半导体结构包括单晶硅衬底和覆盖在单晶硅衬底上的无定形氧化物材料。 单晶钙钛矿氧化物材料覆盖无定形氧化物材料，单晶化合物半导体材料覆盖在单晶钙钛矿氧化物材料上。 在单晶化合物半导体层内形成可操作以透射辐射能的光源组件。 包括电致变色部分的衍射光栅光学耦合到光源部件。

公开(公告)号：US6130601A

公开(公告)日：2000-10-10

申请号：US421182

申请日：1999-10-19

申请人： Vernon L. Brown ,  Gregory J. Dunn ,  Lawrence E. Lach

发明人： Vernon L. Brown ,  Gregory J. Dunn ,  Lawrence E. Lach

IPC分类号： H01C1/012 ,  H01C1/148 ,  H01C1/16 ,  H01C17/28 ,  H05K1/09 ,  H05K1/11 ,  H05K1/16 ,  H05K3/00 ,  H05K3/46

CPC分类号： H05K1/167 ,  H01C1/012 ,  H01C1/148 ,  H01C1/16 ,  H01C17/281 ,  H05K1/095 ,  H05K1/116 ,  H05K2201/09509 ,  H05K2203/1453 ,  H05K3/0023 ,  H05K3/4644 ,  Y10T29/49099 ,  Y10T29/49101

摘要： A thick-film resistor and a process for forming the resistor to have accurate dimensions, thereby yielding a precise resistance value. The resistor generally includes an electrically resistive layer and a pair of terminals, a first of which is surrounded by the second terminal, so as to form a region therebetween that surrounds the first terminal and separates the first and second terminals. The terminals are preferably concentric, with the second terminal and the region therebetween being annular-shaped. The resistive layer electrically connects the first and second terminals to complete the resistor. Each of the terminals has a surface that is substantially parallel to an upper and/or lower surface of the resistive layer and contacts the resistive layer. The surfaces of the terminals may be embedded in the resistive layer by printing the resistive material over the terminals, or may contact the upper or lower surface of the resistive layer by locating the terminals above or below the resistive layer. In each of these embodiments, the terminals are not limited to having edge-to-edge contact with the resistive layer, such that the interfacial resistance therebetween is minimized.

摘要翻译： 厚膜电阻器和用于形成电阻器以具有精确尺寸的工艺，从而产生精确的电阻值。 电阻器通常包括电阻层和一对端子，其中第一端子被第二端子围绕，以便在其间形成围绕第一端子的区域，并分离第一端子和第二端子。 端子优选地是同心的，其中第二端子和它们之间的区域是环形的。 电阻层电连接第一和第二端子以完成电阻器。 每个端子具有基本上平行于电阻层的上表面和/或下表面并与电阻层接触的表面。 端子的表面可以通过在端子上印刷电阻材料而被嵌入在电阻层中，或者可以通过将端子定位在电阻层上方或下方而与电阻层的上表面或下表面接触。 在这些实施例的每一个中，端子不限于与电阻层具有边缘到边缘的接触，使得它们之间的界面电阻最小化。

公开(公告)号：US5912507A

公开(公告)日：1999-06-15

申请号：US18363

申请日：1998-02-04

申请人： Gregory J. Dunn ,  Lawrence E. Lach ,  Daniel R. Gamota

发明人： Gregory J. Dunn ,  Lawrence E. Lach ,  Daniel R. Gamota

IPC分类号： H01L23/498 ,  H05K1/09 ,  H05K1/16 ,  H05K3/34 ,  H01L23/48

CPC分类号： H01L23/49811 ,  H05K1/167 ,  H01L2224/16225 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/15311 ,  H05K1/095 ,  H05K2201/09481 ,  H05K2201/09763 ,  H05K2201/10734 ,  H05K3/3436

摘要： A microelectronic assembly, such as a surface-mount device or a ball-grid array (BGA) package, has one or more integral resistors. The integral resistors are incorporated into one or more of the microelectronic assembly's electrical leads or connections. The integral resistors preferably terminate in a solderable pad. For example, the BGA package may include an IC chip and interposer. A terminal is located on a surface of the IC chip, on a surface of the interposer, or on the surface of the substrate to which the BGA is mounted. An electrically-resistive material overlies the terminal and electrically couples the terminal to a bond pad, thereby defining an integral resistor. The integral resistors reduce electrical resonances and reflections that may otherwise degrade the signal integrity and reliability of the electrical system employing the device; hence, reduce or eliminate the requirement for discrete resistors for the microelectronic assembly.

摘要翻译： 诸如表面贴装器件或球栅阵列（BGA）封装的微电子组件具有一个或多个积分电阻器。 集成电阻器被并入到微电子组件的电引线或连接中的一个或多个中。 整体电阻器优选地终止于可焊接焊盘中。 例如，BGA封装可以包括IC芯片和插入器。 端子位于IC芯片的表面上，在中介层的表面上，或位于安装有BGA的基板的表面上。 电阻材料覆盖在端子上并将端子电耦合到接合焊盘，从而限定一个整体电阻器。 积分电阻减少电共振和反射，否则可能会降低采用该器件的电气系统的信号完整性和可靠性; 因此，减少或消除了对于微电子组件的分立电阻器的要求。