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1. 发明授权

US5663891A Optimization of multiple performance criteria of integrated circuits by expanding a constraint graph with subgraphs derived from multiple PWL convex cost functions 失效
标题翻译：通过从多个PWL凸成本函数导出的子图扩展约束图来优化集成电路的多个性能标准
公开(公告)号：US5663891A
公开(公告)日：1997-09-02
申请号：US627080
申请日：1996-04-03
申请人： Cyrus Bamji , Enrico Malavasi
发明人： Cyrus Bamji , Enrico Malavasi
IPC分类号： G06F17/50
CPC分类号： G06F17/5045
摘要： A system, method, and software product in a computer aided design apparatus for system design, to simultaneously optimize multiple performance criteria models of the system, where the performance criteria models are characterized by convex cost functions based on linear dimensional characteristics of system being designed. One embodiment is provided in a computer aid design environment for integrated circuit design, and used to simultaneously optimize fabrication yield along with other performance criteria. Optimization is provided by converting a structural description of an integrated circuit into a constraint graph, compacting, and modifying the constraint graph to include convex cost functions for selected performance criteria to optimized, such as yield cost functions. The cost functions are then transformed to piecewise linear cost functions. The constraint graph is then expanded by replacing edges having piecewise linear cost function with subgraphs constructed from the piecewise linear cost function. The expanded constraint graph is then minimized using a network flow algorithm. Once minimized, the constraint graph describes the positions of circuit elements that maximize yield (and other selected performance criteria) given the cost functions.
摘要翻译：一种用于系统设计的计算机辅助设计装置中的系统，方法和软件产品，同时优化系统的多个性能标准模型，其中性能标准模型以基于正在设计的系统的线性尺寸特征的凸成本函数为特征。在用于集成电路设计的计算机辅助设计环境中提供了一个实施例，并且用于同时优化制造产量以及其他性能标准。通过将集成电路的结构描述转换为约束图，压缩和修改约束图以包括用于优化的所选性能标准的凸成本函数（例如收益成本函数）来提供优化。然后将成本函数转换为分段线性成本函数。然后通过用分段线性成本函数构造的子图替换具有分段线性成本函数的边来扩展约束图。然后使用网络流算法将扩展约束图最小化。一旦最小化，约束图描述了考虑成本函数最大化产量（和其他所选性能标准）的电路元件的位置。

2. 发明授权

US09052395B2 Resonant modulation for low power range imaging cameras 有权
标题翻译：低功率范围成像相机的谐振调制
公开(公告)号：US09052395B2
公开(公告)日：2015-06-09
申请号：US13458833
申请日：2012-04-27
申请人： Richard Michael Conroy , Adrian Andrew Dorrington , Cyrus Bamji
发明人： Richard Michael Conroy , Adrian Andrew Dorrington , Cyrus Bamji
IPC分类号： G01C3/08 , G01S17/89 , G01S17/36 , G01S7/491 , H04N5/376
CPC分类号： G01S17/89 , G01S7/4914 , G01S7/4915 , G01S17/36 , H04N5/3765
摘要： An amplitude modulated continuous wave range imaging device has a signaling device configured to emit an intensity modulated illumination signal. An image sensor is configured to capture a plurality of images of a reflection of the modulated illumination signal. The captured images include intensity and/or phase components for a plurality of pixels of the image sensor. Each pixel includes a first modulation terminal having a first capacitive component. A first driver is configured to charge a first set of modulation terminals of the plurality of pixels. A second driver is configured to charge a second set of modulation terminals of the plurality of pixels. A charge transfer circuit is connected between the first set of modulation terminals and the second set of modulation terminals. The charge transfer circuit is configured to transfer charge between the first set of modulation terminals and the second set of modulation terminals.
摘要翻译：调幅连续波段成像装置具有发射强度调制照明信号的信号装置。图像传感器被配置为捕获调制照明信号的反射的多个图像。捕获的图像包括用于图像传感器的多个像素的强度和/或相位分量。每个像素包括具有第一电容分量的第一调制终端。第一驱动器被配置为对多个像素的第一组调制端子进行充电。第二驱动器被配置为对多个像素的第二组调制端充电。电荷转移电路连接在第一组调制终端和第二组调制终端之间。电荷转移电路被配置为在第一组调制终端和第二组调制终端之间传送电荷。

3. 发明授权

US08681124B2 Method and system for recognition of user gesture interaction with passive surface video displays 有权
标题翻译：用于识别与被动表面视频显示器的用户手势交互的方法和系统
公开(公告)号：US08681124B2
公开(公告)日：2014-03-25
申请号：US12586432
申请日：2009-09-22
申请人： Cyrus Bamji , Sunil Acharya
发明人： Cyrus Bamji , Sunil Acharya
IPC分类号： G06F3/042
CPC分类号： G06F3/0421 , G06F3/0428 , G06F2203/04108
摘要： A system recognizes user-object gesture interactions with the surface of a monitor display, with hover space defined spaced-apart from the display surface, or in virtual scroll regions defined on the periphery of the monitor display. The system recognizes user-object interactions, e.g., gestures, and can affect what is displayed commensurately. The system includes at least a first time-of-flight (TOF) system and at least one of a second TOF, a two-dimensional camera, and a mirror, each TOF system processing at least one of z-depth data and A-brightness data. User-object interactions, e.g., touching(s) of the display surface, location(s) in a hover region, or location(s) in a virtual scroll region, are recognized passively in that the user-object need not have capacitance, resistance, exert force, or deform during gesture interaction. The system may be attached retroactively to the monitor, which may be a large (>22 cm) monitor, or a small cell phone sized monitor.
摘要翻译：系统识别与监视器显示器的表面的用户对象手势交互，其中悬浮空间与显示表面间隔开定义，或者在监视器显示器的外围限定的虚拟滚动区域中。该系统识别用户对象交互，例如手势，并且可以影响相应地显示的内容。该系统包括至少第一飞行时间（TOF）系统和第二TOF，二维相机和反射镜中的至少一个，每个TOF系统处理z深度数据和A-深度数据中的至少一个，亮度数据。用户对象交互（例如，显示表面的触摸，悬停区域中的位置或虚拟滚动区域中的位置）被动地识别为用户对象不需要电容，阻力，施加力或手势交互期间的变形。系统可以追溯到监视器上，监视器可能是一个大（> 22厘米）的监视器，或者一个小型手机大小的监视器。

4. 发明授权

US08363212B2 System architecture design for time-of-flight system having reduced differential pixel size, and time-of-flight systems so designed 有权
公开(公告)号：US08363212B2
公开(公告)日：2013-01-29
申请号：US13437392
申请日：2012-04-02
申请人： Cyrus Bamji , Swati Mehta
发明人： Cyrus Bamji , Swati Mehta
IPC分类号： G01C3/08
CPC分类号： G01S7/491 , G01C3/08 , G01S7/4914 , G01S17/36 , G01S17/89
摘要： Embodiments of the present invention provide methods to produce a high performance, feature rich TOF system, phase-based or otherwise using small TOF pixels, single-ended or preferably differential, as well as TOF systems so designed. IC chip area required for pixels is reduced by intelligently off-loading or removing from within the pixel certain components and/or functionality. In some embodiments during a single TOF system capture period, analog values from each pixel are repeatedly sampled and converted to digital values, which are combined and manipulated on the sensor chip. Combining this plurality of values enables appropriately compact data from the sensor chip. Embodiments of the present invention implement a TOF system with high ambient light resilience, high dynamic range, low motion blur and dealiasing support, while advantageously reducing pixel area size relative to prior art TOF pixels.

5. 发明申请

US20120188530A1 SYSTEM ARCHITECTURE DESIGN FOR TIME-OF-FLIGHT SYSTEM HAVING REDUCED DIFFERENTIAL PIXEL SIZE, AND TIME-OF-FLIGHT SYSTEMS SO DESIGNED 有权
标题翻译：具有减少差分像素尺寸的飞行时间系统的系统架构设计和设计的飞行时间系统
公开(公告)号：US20120188530A1
公开(公告)日：2012-07-26
申请号：US13437392
申请日：2012-04-02
申请人： Cyrus Bamji , Swati Mehta
发明人： Cyrus Bamji , Swati Mehta
IPC分类号： G01C3/08
CPC分类号： G01S7/491 , G01C3/08 , G01S7/4914 , G01S17/36 , G01S17/89
摘要： Embodiments of the present invention provide methods to produce a high performance, feature rich TOF system, phase-based or otherwise using small TOF pixels, single-ended or preferably differential, as well as TOF systems so designed. IC chip area required for pixels is reduced by intelligently off-loading or removing from within the pixel certain components and/or functionality. In some embodiments during a single TOF system capture period, analog values from each pixel are repeatedly sampled and converted to digital values, which are combined and manipulated on the sensor chip. Combining this plurality of values enables appropriately compact data from the sensor chip. Embodiments of the present invention implement a TOF system with high ambient light resilience, high dynamic range, low motion blur and dealiasing support, while advantageously reducing pixel area size relative to prior art TOF pixels.
摘要翻译：本发明的实施例提供了产生高性能，特征丰富的TOF系统，基于相位或以其他方式使用小型TOF像素，单端或优选差分以及如此设计的TOF系统的方法。通过智能地卸载或从像素内部去除某些部件和/或功能来减少像素所需的IC芯片面积。在一些实施例中，在单个TOF系统捕获周期期间，来自每个像素的模拟值被重复采样并转换成在传感器芯片上组合和操作的数字值。结合该多个值可以实现来自传感器芯片的适当紧凑的数据。本发明的实施例实现了具有高环境光弹性，高动态范围，低运动模糊和去混合支持的TOF系统，同时有利地减小了相对于现有技术的TOF像素的像素面积尺寸。

6. 发明申请

US20110291988A1 Method and system for recognition of user gesture interaction with passive surface video displays 有权
标题翻译：用于识别与被动表面视频显示器的用户手势交互的方法和系统
公开(公告)号：US20110291988A1
公开(公告)日：2011-12-01
申请号：US12586432
申请日：2009-09-22
申请人： Cyrus Bamji , Sunil Acharya
发明人： Cyrus Bamji , Sunil Acharya
IPC分类号： G06F3/042
CPC分类号： G06F3/0421 , G06F3/0428 , G06F2203/04108
摘要： A system recognizes user-object gesture interactions with the surface of a monitor display, with hover space defined spaced-apart from the display surface, or in virtual scroll regions defined on the periphery of the monitor display. The system recognizes user-object interactions, e.g., gestures, and can affect what is displayed commensurately. The system includes at least a first time-of-flight (TOF) system and at least one of a second TOF, a two-dimensional camera, and a mirror, each TOF system processing at least one of z-depth data and A-brightness data. User-object interactions, e.g., touching(s) of the display surface, location(s) in a hover region, or location(s) in a virtual scroll region, are recognized passively in that the user-object need not have capacitance, resistance, exert force, or deform during gesture interaction. The system may be attached retroactively to the monitor, which may be a large (>22 cm) monitor, or a small cell phone sized monitor.
摘要翻译：系统识别与监视器显示器的表面的用户对象手势交互，其中悬浮空间与显示表面间隔开定义，或者在监视器显示器的外围限定的虚拟滚动区域中。该系统识别用户对象交互，例如手势，并且可以影响相应地显示的内容。该系统包括至少第一飞行时间（TOF）系统和第二TOF，二维相机和反射镜中的至少一个，每个TOF系统处理z深度数据和A-深度数据中的至少一个，亮度数据。用户对象交互（例如，显示表面的触摸，悬停区域中的位置或虚拟滚动区域中的位置）被动地识别为用户对象不需要电容，阻力，施加力或手势交互期间的变形。系统可以追溯到监视器上，监视器可能是一个大（> 22厘米）的监视器，或者一个小型手机大小的监视器。

7. 发明申请

US20110285910A1 Video manipulation of red, green, blue, distance (RGB-Z) data including segmentation, up-sampling, and background substitution techniques 有权
标题翻译：红色，绿色，蓝色，距离（RGB-Z）数据的视频处理，包括分割，上采样和背景替换技术
公开(公告)号：US20110285910A1
公开(公告)日：2011-11-24
申请号：US12004305
申请日：2007-12-20
申请人： Cyrus Bamji , Abbas Rafii , Ryan E. Crabb
发明人： Cyrus Bamji , Abbas Rafii , Ryan E. Crabb
IPC分类号： H04N5/21
CPC分类号： G01S17/89 , G01S17/36 , G01S17/936 , H04N5/2355 , H04N9/045 , H04N13/128 , H04N13/271
摘要： RGB-Z imaging systems acquire RGB data typically with a high X-Y resolution RGB pixel array, and acquire Z-depth data with an array of physically larger Z pixels having additive signal properties. In each acquired frame, RGB pixels are mapped to a corresponding Z pixel. Z image resolution is enhanced by identifying Z discontinuities and identifying corresponding RGB pixels where the Z discontinuities occur. Thus segmented data enables RGB background substitution, which preferably blends foreground pixel color and substitute background color. The segmented data also enables up-sampling in which a higher XY resolution Z image with accurate Z values is obtained. Up-sampling uses an equation set enabling assignment of accurate Z values to RGB pixels. Fixed acquisition frame rates are enabled by carefully culling bad Z data. Segmenting and up-sampling enhanced video effects and enable low cost, low Z resolution arrays to function comparably to higher quality, higher resolution Z arrays.
摘要翻译： RGB-Z成像系统通常采用高X-Y分辨率RGB像素阵列获取RGB数据，并采用具有加性信号特性的物理上较大的Z像素阵列获取Z深度数据。在每个获取的帧中，RGB像素被映射到相应的Z像素。通过识别Z不连续性并识别发生Z不连续性的相应RGB像素来增强Z图像分辨率。因此，分段数据可以进行RGB背景替换，其优选地将前景像素颜色和替代背景颜色混合。分段数据还可以进行上采样，其中获得具有精确Z值的较高XY分辨率Z图像。上采样使用能够将精确Z值分配给RGB像素的方程组。通过仔细剔除不良Z数据可以实现固定采集帧速率。分段和上采样增强的视频效果，并使低成本，低Z分辨率阵列能够与更高质量，更高分辨率的Z阵列相比较。

8. 发明申请

US20110188028A1 METHODS AND SYSTEMS FOR HIERARCHICAL DE-ALIASING TIME-OF-FLIGHT (TOF) SYSTEMS 有权
标题翻译：分层解耦飞行时间（TOF）系统的方法与系统
公开(公告)号：US20110188028A1
公开(公告)日：2011-08-04
申请号：US13021484
申请日：2011-02-04
申请人： Hua Hui , Cyrus Bamji
发明人： Hua Hui , Cyrus Bamji
IPC分类号： G01C3/08
CPC分类号： G01C3/08 , G01S7/4915 , G01S17/36 , G01S17/89
摘要： A TOF system acquires depth data using n≧3 modulation frequencies f1, f2, . . . , fm separately, associated with separate aliasing interval ranges Z1, Z2, . . . , Zm. Next, n intermediate frequencies fDE1, fDE2, . . . , fDEn are generated sorted by order of fDE1 Zk for k=1 . . . n as if said TOF system operated at a very low modulation frequency fD, while simultaneously providing depth resolution certainty as if said TOF system operated at a high modulation frequency fE. Preferably high modulation frequency fE is a function of all modulation frequencies f1, f2, . . . , fm, which function may be an arithmetic mean or a weighted average of f1, f2, . . . , fm.
摘要翻译： TOF系统使用n≥3个调制频率f1，f2，...获取深度数据。。。，fm分别与单独的混叠间隔范围Z1，Z2，相关联。。。，Zm。接下来，n个中间频率fDE1，fDE2，... 。。，fDEn按fDE1 Zk。。。 n好像所述TOF系统以非常低的调制频率fD操作，同时提供深度分辨率确定性，好像所述TOF系统以高调制频率fE操作。优选地，高调制频率fE是所有调制频率f1，f2的函数。。。，fm，该函数可以是f1，f2的算术平均值或加权平均值。。。，fm。

9. 发明授权

US07526120B2 System and method for providing intelligent airbag deployment 有权
标题翻译：提供智能安全气囊部署的系统和方法
公开(公告)号：US07526120B2
公开(公告)日：2009-04-28
申请号：US10660907
申请日：2003-09-11
申请人： Salih Burak Gokturk , Cyrus Bamji , Abbas Rafii , Carlo Tomasi , Xinqiao Liu
发明人： Salih Burak Gokturk , Cyrus Bamji , Abbas Rafii , Carlo Tomasi , Xinqiao Liu
IPC分类号： G06K9/00
CPC分类号： B60R21/01516 , B60R21/013 , B60R21/0152 , B60R21/01538 , G06K9/00362
摘要： A sensor system is provided for determining a deployment level of an airbag in a vehicle. A light source of the sensor system emits light onto a region around a vehicle seat. An array of light-sensitive pixels which capture reflected light from the scene, including reflected light that originated from the light source. Processing resources are provided that determine depth information for an object in the scene based on a time-of-flight characteristic of the reflected light from the light source captured on the array. The processing resources may be configured to determine occupancy data for the object based on the captured reflected light from the scene. The processing resources are configured to determine the deployment level of the airbag based at least in part on the occupancy data in when a collision of the vehicle occurs.
摘要翻译：提供用于确定车辆中的气囊的展开水平的传感器系统。传感器系统的光源将光发射到车辆座椅周围的区域。捕获来自场景的反射光的光敏像素阵列，包括源自光源的反射光。提供处理资源，其基于来自在阵列上捕获的光源的反射光的飞行时间特性来确定场景中的对象的深度信息。处理资源可以被配置为基于来自场景的所捕获的反射光来确定对象的占用数据。处理资源被配置为至少部分地基于当车辆碰撞发生时的占用数据来确定安全气囊的部署水平。

10. 发明申请

US20050285966A1 Single chip red, green, blue, distance (RGB-Z) sensor 有权
标题翻译：单芯红色，绿色，蓝色，距离（RGB-Z）传感器
公开(公告)号：US20050285966A1
公开(公告)日：2005-12-29
申请号：US11044996
申请日：2005-01-26
申请人： Cyrus Bamji , Peiqian Zhao
发明人： Cyrus Bamji , Peiqian Zhao
IPC分类号： G01C3/08 , G01J3/28 , G01J3/36 , G01S7/481 , G01S7/486 , G01S7/491 , G01S17/89 , H04N5/225 , H04N9/04 , H04N9/07 , H04N9/083
CPC分类号： H04N9/045 , G01C3/08 , G01J3/2803 , G01J3/36 , G01S7/4811 , G01S7/4863 , G01S7/4912 , G01S17/023 , G01S17/89 , G01S17/936 , H04N5/2226 , H04N5/2254 , H04N5/332 , H04N9/083
摘要： An RGB-Z sensor is implementable on a single IC chip. A beam splitter such as a hot mirror receives and separates incoming first and second spectral band optical energy from a target object into preferably RGB image components and preferably NIR Z components. The RGB image and Z components are detected by respective RGB and NIR pixel detector array regions, which output respective image data and Z data. The pixel size and array resolutions of these regions need not be equal, and both array regions may be formed on a common IC chip. A display using the image data can be augmented with Z data to help recognize a target object. The resultant structure combines optical efficiency of beam splitting with the simplicity of a single IC chip implementation. A method of using the single chip red, green, blue, distance (RGB-Z) sensor is also disclosed.
摘要翻译： RGB-Z传感器可在单个IC芯片上实现。诸如热反射镜的分束器接收并将来自目标物体的进入的第一和第二光谱带光能分解成优选的RGB图像分量，并且优选地将NIR Z分量分离。 RGB图像和Z分量由相应的RGB和NIR像素检测器阵列区域检测，其输出相应的图像数据和Z数据。这些区域的像素尺寸和阵列分辨率不必相等，并且两个阵列区域可以形成在公共IC芯片上。使用图像数据的显示可以用Z数据来增强以帮助识别目标对象。所得到的结构结合了光束分离的光学效率和单个IC芯片实现的简单性。还公开了使用单芯片红，绿，蓝，距离（RGB-Z）传感器的方法。

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