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1. 发明授权

US08922759B2 White cane with integrated electronic travel aid using 3D TOF sensor 有权
标题翻译：使用3D TOF传感器的集成电子旅行援助的白色手杖
公开(公告)号：US08922759B2
公开(公告)日：2014-12-30
申请号：US13848884
申请日：2013-03-22
申请人： MESA Imaging AG
发明人： Roger Gassert , Yeongmi Kim , Thierry Oggier , Markus Riesch , Mathias Deschler , Cornelia Prott , Stefan Beat Schneller , Vincent Hayward
IPC分类号： G01C3/08 , A45B3/08 , A61H3/06
CPC分类号： A61H3/061 , A45B3/08 , A61H3/068 , A61H2003/063 , A61H2003/065 , A61H2201/5058 , A61H2201/5092
摘要： The invention describes an electronic travel aid (ETA) for blind and visually impaired persons implemented in a detachable handle of a white cane. The device enhances the functionality of the white cane giving the user more detailed information about the environment within a defined corridor of interest in front of the user with an extended range of a few meters up to 10 m. It provides a reliable warning if there is a risk of collision with obstacles including those at trunk or head height, which are not recognized by a conventional white cane. Additional sensors are integrated to delimit the defined corridor during the cane sweeping thereby reducing the amount of information that is transmitted to the user via the tactile interface. Alternatively, the device can be used independently from the cane as an object recognition and orientation aid.
摘要翻译：本发明描述了一种用于盲人和视觉障碍者的电子旅行援助（ETA），其实现在白色手杖的可拆卸手柄中。该设备增强了白杖的功能，为用户提供了在用户前面定义的感兴趣的走廊中具有几米至10米的扩展范围内的环境的更详细信息。如果存在碰撞障碍物（包括躯干或头部高度的障碍物）的风险，这是一个可靠的警告，这是传统的白杖不能识别的。集成了额外的传感器，以便在甘蔗扫掠过程中限定定义的走廊，从而减少通过触觉界面传输给用户的信息量。或者，该装置可以独立于藤条作为对象识别和定向辅助。

2. 发明授权

US08803967B2 Time of flight camera with rectangular field of illumination 有权
标题翻译：具有矩形场照明的飞行时间相机
公开(公告)号：US08803967B2
公开(公告)日：2014-08-12
申请号：US12837859
申请日：2010-07-16
申请人： Thierry Oggier , Michael Richter
发明人： Thierry Oggier , Michael Richter
IPC分类号： H04N7/18
CPC分类号： H04N13/204 , G01S7/4814 , G01S17/936 , G02B5/09 , G02B19/0019 , G02B19/0052 , G02B19/0061 , H04N5/2256
摘要： Improved field-of-illumination (FOI) and field-of-view (FOV) matching for 3D time-of-flight cameras is provided using light emitters with rectangular reflectors. A better adjustment of the FOI with the camera's FOV has the following advantages: optimal use of emitted light and reduced multi-path problems. Furthermore, embodiments bring the benefit for rather low-cost customization of the illumination to match the FOI to the specified FOV.
摘要翻译：使用具有矩形反射器的发光体，提供3D飞行时间相机的改进的照明场（FOI）和视场（FOV）匹配。使用相机的FOV对FOI进行更好的调整具有以下优点：优化使用发射光并减少多路径问题。此外，实施例带来了相当低成本的照明定制的优点，以将FOI与指定的FOV相匹配。

3. 发明授权

US08754939B2 Multistage demodulation pixel and method 有权
标题翻译：多级解调像素和方法
公开(公告)号：US08754939B2
公开(公告)日：2014-06-17
申请号：US12942598
申请日：2010-11-09
申请人： Thierry Oggier , Michael Lehmann , Bernhard Buettgen , Jonas Felber
发明人： Thierry Oggier , Michael Lehmann , Bernhard Buettgen , Jonas Felber
IPC分类号： H04N7/18 , H04N9/47
CPC分类号： H04N5/37452
摘要： A demodulation structure for a n-tap pixel, mainly for 3D time-of-flight (TOF) applications uses a 2-stage switch structure for demodulating a modulated electromagnetic wave. An almost arbitrary number of storage sites per pixel can be implemented enabling an almost arbitrary number of samplings captured during one exposure. It also provides the option to demodulate and integrate different phasing samples according to the different modulation frequencies within the same exposure.
摘要翻译：主要用于3D飞行时间（TOF）应用的n抽头像素的解调结构使用2级开关结构来解调调制的电磁波。可以实现每像素几乎任意数量的存储位置，使得能够在一次曝光期间捕获几乎任意数量的采样。它还提供了在相同曝光中根据不同调制频率对不同定相样本进行解调和集成的选项。

4. 发明申请

US20110299059A1 Multi-Level Digital Modulation for Time of Flight Method and System 有权
标题翻译：用于飞行时间方法和系统的多级数字调制
公开(公告)号：US20110299059A1
公开(公告)日：2011-12-08
申请号：US13082000
申请日：2011-04-07
申请人： Bernhard Buettgen , Thierry Oggier
发明人： Bernhard Buettgen , Thierry Oggier
IPC分类号： G01C3/08 , H05B41/24
CPC分类号： G01S17/89 , G01S7/4815 , G01S7/4911 , G01S17/32
摘要： The modulation scheme disclosed in this invention report allows for utilizing multiple 3D time-of-flight cameras at the same time by exploiting the inherent pseudo noise properties of the optical modulation signals. Compared to recent systems based on pure pseudo noise modulation signals, the stochastic measurement error in a single-camera environment is significantly reduced. The basic concept relies on the generation of a three level optical modulation signal that includes two pseudo noise sequences.
摘要翻译：本发明报告中公开的调制方案允许通过利用光调制信号的固有伪噪声特性同时利用多个3D飞行时间相机。与基于纯伪噪声调制信号的近期系统相比，单相机环境中的随机测量误差显着降低。基本概念依赖于产生包含两个伪噪声序列的三电平光调制信号。

5. 发明申请

US20110273561A1 Multistage Demodulation Pixel and Method 有权
标题翻译：多级解调像素和方法
公开(公告)号：US20110273561A1
公开(公告)日：2011-11-10
申请号：US12942598
申请日：2010-11-09
申请人： Thierry Oggier , Michael Lehmann , Bernhard Buettgen , Jonas Felber
发明人： Thierry Oggier , Michael Lehmann , Bernhard Buettgen , Jonas Felber
IPC分类号： H04N7/18 , G01J1/42
CPC分类号： H04N5/37452
摘要： A demodulation structure for a n-tap pixel, mainly for 3D time-of-flight (TOF) applications uses a 2-stage switch structure for demodulating a modulated electromagnetic wave. An almost arbitrary number of storage sites per pixel can be implemented enabling an almost arbitrary number of samplings captured during one exposure. It also provides the option to demodulate and integrate different phasing samples according to the different modulation frequencies within the same exposure.
摘要翻译：主要用于3D飞行时间（TOF）应用的n抽头像素的解调结构使用2级开关结构来解调调制的电磁波。可以实现每像素几乎任意数量的存储位置，使得能够在一次曝光期间捕获几乎任意数量的采样。它还提供了在相同曝光中根据不同调制频率对不同定相样本进行解调和集成的选项。

6. 发明申请

US20110164132A1 Demodulation Sensor with Separate Pixel and Storage Arrays 有权
标题翻译：具有独立像素和存储阵列的解调传感器
公开(公告)号：US20110164132A1
公开(公告)日：2011-07-07
申请号：US12985737
申请日：2011-01-06
申请人： Bernhard Buettgen , Thierry Oggier
发明人： Bernhard Buettgen , Thierry Oggier
IPC分类号： H04N7/18 , H01L27/146
CPC分类号： G01S17/89 , G01S7/4914 , G01S7/4918 , G01S17/36
摘要： A demodulation image sensor, such as used in time of flight (TOF) cameras, extracts all storage- and post-processing-related steps from the pixels to another array of storage and processing elements (proxels) on the chip. The pixel array has the task of photo-detection, first processing and intermediate storage, while the array of storage and processing elements provides further processing and enhanced storage capabilities for each pixel individually. The architecture can be used to address problems due to the down-scaling of the pixel size. Typically, either the photo-sensitivity or the signal storage capacitance suffers significantly. Both a lower sensitivity and smaller storage capacitances have negative influence on the image quality. The disclosed architecture allows for keeping the storage capacitance unaffected by the pixel down-scaling. In addition to that, it provides a high degree of flexibility in integrating more intelligence into the image sensor design already on the level of the pixel array. In particular, if applied to demodulation pixels, the flexibility of the architecture allows for integrating on sensor-level concepts for multi-tap sampling, mismatch compensation, background suppression and so on, without any requirement to adjust the particular demodulation pixel architecture.
摘要翻译：诸如在飞行时间（TOF）摄像机中使用的解调图像传感器从芯片上的像素到存储和处理元件（代码）的另一阵列提取所有存储和后处理相关的步骤。像素阵列具有光检测，第一处理和中间存储的任务，而存储和处理元件阵列分别为每个像素提供进一步的处理和增强的存储能力。该架构可以用于解决由于像素尺寸的缩小而导致的问题。通常，光敏性或信号存储电容受到很大影响。较低的灵敏度和较小的存储电容对图像质量都有负面影响。所公开的架构允许保持存储电容不受像素缩小的影响。除此之外，它在将更多智能集成到已经在像素阵列级别上的图像传感器设计中提供了高度的灵活性。特别地，如果应用于解调像素，则架构的灵活性允许集成在用于多抽头采样，失配补偿，背景抑制等的传感器级概念上，而不需要调整特定的解调像素架构。

7. 发明授权

US07923673B2 Large-area pixel for use in an image sensor 有权
标题翻译：用于图像传感器的大面积像素
公开(公告)号：US07923673B2
公开(公告)日：2011-04-12
申请号：US11659314
申请日：2005-07-18
申请人： Bernhard Büttgen , Felix Lustenberger , Peter Seitz
发明人： Bernhard Büttgen , Felix Lustenberger , Peter Seitz
IPC分类号： H01L27/00
CPC分类号： H01L27/14812 , H01L27/14603
摘要： A pixel for detecting incident radiation (In) over a large area with high sensitivity and low power consumption. The pixel comprises a semiconductor substrate (1), covered by a thin insulating layer (2), on top of which a dendritic or arborescent gate structure (3) is arranged. The dendritic gate (3) is electrically connected at two or more contacts (C1, C2) with voltage sources, leading to the flow of a current and a position-dependent potential distribution in the gate (3). Due to the use of arborescent structures and various materials (31, 32), the pixel can be optimized for a certain application, in particular in terms of the electric field distribution, the RC time constant, the power consumption and the spectral sensitivity. Due to its compact size, the photo sensor can be arranged in linear or two-dimensional manner for the realization of line and area sensors.
摘要翻译：用于在高灵敏度和低功耗的大面积上检测入射辐射（In）的像素。像素包括被薄绝缘层（2）覆盖的半导体衬底（1），其上布置有树枝状或碳化的栅极结构（3）。树枝状栅极（3）在两个或更多个触点（C1，C2）处与电压源电连接，导致栅极（3）中的电流和位置相关电位分布的流动。由于使用散射结构和各种材料（31,32），像素可以针对特定应用进行优化，特别是在电场分布，RC时间常数，功耗和光谱灵敏度方面。由于其紧凑的尺寸，光传感器可以以线性或二维方式布置以实现线和面传感器。

8. 发明授权

US07897928B2 Solid-state photodetector pixel and photodetecting method 有权
标题翻译：固态光电探测器像素和光电检测方法
公开(公告)号：US07897928B2
公开(公告)日：2011-03-01
申请号：US11658516
申请日：2005-07-25
申请人： Rolf Kaufmann , Thierry Oggier , Simon Neukom , Michael Lehmann
发明人： Rolf Kaufmann , Thierry Oggier , Simon Neukom , Michael Lehmann
IPC分类号： G01T1/24 , H01L27/148
CPC分类号： H01L31/0232 , H01L27/14601 , H01L27/14623 , H01L27/148 , H01L31/02005
摘要： A pixel is formed in a semiconductor substrate (S) with a plane surface for use in a photodetector. It comprises an active region for converting incident light (In) into charge carriers, photogates (PGL, PGM, PGR) for generating a lateral electric potential (Φ(x)) across the active region, and an integration gate (IG) for storing charge carriers generated in the active region and a dump site (Ddiff). The pixel further comprises separation-enhancing means (SL) for additionally enhancing charge separation in the active region and charge transport from the active region to the integration gate (IG). The separation-enhancing means (SL) are for instance a shield layer designed such that for a given lateral electric potential (Φ(x)), the incident light (In) does not impinge on the section from which the charge carriers would not be transported to the integration gate (IG).
摘要翻译：在具有用于光电检测器的平面的半导体基板（S）中形成像素。它包括用于将入射光（In）转换成电荷载体的有源区域，用于在有源区域上产生横向电位（Φ（x））的照相门（PGL，PGM，PGR）和用于存储的积分栅极在活动区域中生成的电荷载体和转储位点（Ddiff）。像素还包括分离增强装置（SL），用于另外增强有源区域中的电荷分离和从有源区域到积分栅极（IG）的电荷传输。分离增强装置（SL）例如是设计成使得对于给定的横向电位（Φ（x）），入射光（In）不会撞击到电荷载体不会在其上的部分的屏蔽层运送到集成门（IG）。

9. 发明申请

US20110025843A1 Time of Flight Camera with Rectangular Field of Illumination 有权
标题翻译：飞行时间相机与矩形照明领域
公开(公告)号：US20110025843A1
公开(公告)日：2011-02-03
申请号：US12837859
申请日：2010-07-16
申请人： Thierry Oggier , Michael Richter
发明人： Thierry Oggier , Michael Richter
IPC分类号： H04N7/18
CPC分类号： H04N13/204 , G01S7/4814 , G01S17/936 , G02B5/09 , G02B19/0019 , G02B19/0052 , G02B19/0061 , H04N5/2256
摘要： Improved field-of-illumination (FOI) and field-of-view (FOV) matching for 3D time-of-flight cameras is provided using light emitters with rectangular reflectors. A better adjustment of the FOI with the camera's FOV has the following advantages: optimal use of emitted light and reduced multi-path problems. Furthermore, embodiments bring the benefit for rather low-cost customization of the illumination to match the FOI to the specified FOV.
摘要翻译：使用具有矩形反射器的发光体，提供3D飞行时间相机的改进的照明场（FOI）和视场（FOV）匹配。使用相机的FOV对FOI进行更好的调整具有以下优点：优化使用发射光并减少多路径问题。此外，实施例带来了相当低成本的照明定制的优点，以将FOI与指定的FOV相匹配。

10. 发明授权

US07586077B2 Reference pixel array with varying sensitivities for time of flight (TOF) sensor 有权
标题翻译：参考像素阵列具有不同的飞行时间（TOF）传感器的灵敏度
公开(公告)号：US07586077B2
公开(公告)日：2009-09-08
申请号：US12175100
申请日：2008-07-17
申请人： Michael Lehmann , Bernhard Buettgen , Thierry Oggier
发明人： Michael Lehmann , Bernhard Buettgen , Thierry Oggier
IPC分类号： H01L27/00
CPC分类号： G01S17/89 , G01S7/4816 , G01S7/497 , G01S17/42
摘要： The sensitivity of a reference pixel array RPA to the reference modulated light MLR is varied for different reference pixels RP of the reference pixel array RPA. In one embodiment the different sensitivities of the reference pixels RP in the RPA is achieved by designing the pixels to have different light sensitivities with respect to each other. In another embodiment, the different sensitivities are achieved by changing optical coupling between the separate reference pixels RP of the reference pixel array RPA to the reference modulated light MLR such as by changing how the different reference pixels RP couple to the aperture LGA of the light guide LG.
摘要翻译：对于参考像素阵列RPA的不同参考像素RP，参考像素阵列RPA对参考调制光MLR的灵敏度是变化的。在一个实施例中，RPA中的参考像素RP的不同灵敏度通过将像素设计为具有彼此不同的光灵敏度来实现。在另一个实施例中，通过改变参考像素阵列RPA的单独参考像素RP与参考调制光MLR之间的光学耦合来实现不同的灵敏度，例如通过改变不同的参考像素RP如何耦合到光导的孔径LGA LG。

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