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1. 发明授权

US09410800B1 3D TOF camera with masked illumination 有权
标题翻译：具有屏蔽照明的3D TOF相机
公开(公告)号：US09410800B1
公开(公告)日：2016-08-09
申请号：US13196291
申请日：2011-08-02
申请人： Thierry Oggier , Matthias Schweizer , Cornelia Prott
发明人： Thierry Oggier , Matthias Schweizer , Cornelia Prott
IPC分类号： G01B11/25 , G01B9/02
CPC分类号： G01B11/25 , G01B9/0201 , G01S7/4814 , G01S17/89
摘要： A method and system for reducing multi-path effects (stray light and multiple reflections) in 3D time of flight cameras by partly masking the camera's illumination elements.
摘要翻译：通过部分掩蔽照相机的照明元件，减少飞行时间相机3D时间的多路径效应（杂散光和多重反射）的方法和系统。

2. 发明申请

US20120098964A1 System and Method for Multi TOF Camera Operation Using Phase Hopping 有权
标题翻译：使用相位跳跃的多TOF摄像机操作的系统和方法
公开(公告)号：US20120098964A1
公开(公告)日：2012-04-26
申请号：US13280154
申请日：2011-10-24
申请人： Thierry Oggier , Bernhard Buettgen , Matthias Schweizer
发明人： Thierry Oggier , Bernhard Buettgen , Matthias Schweizer
IPC分类号： H04N7/18
CPC分类号： G01S17/36 , G01S17/10 , G01S17/87 , G01S17/89 , H04N13/204
摘要： A modulation technique for 3D time-of-flight (TOF) cameras allows the operation of fully autonomous operated 3D TOF cameras. The method subdivides the exposure time into several sub-exposure intervals, for which the signal control unit adds a preferably pseudo-random common phase delay to the illumination and the sensor.
摘要翻译： 3D飞行时间相机（TOF）相机的调制技术可以实现完全自主操作的3D TOF相机。该方法将曝光时间细分为几个次曝光间隔，信号控制单元将优选的伪随机公共相位延迟添加到照明和传感器。

3. 发明申请

US20120033045A1 Multi-Path Compensation Using Multiple Modulation Frequencies in Time of Flight Sensor 有权
标题翻译：使用多个调制频率的多路径补偿在飞行时间传感器
公开(公告)号：US20120033045A1
公开(公告)日：2012-02-09
申请号：US13189903
申请日：2011-07-25
申请人： Matthias Schweizer , Thierry Oggier , Bernhard Buettgen
发明人： Matthias Schweizer , Thierry Oggier , Bernhard Buettgen
IPC分类号： H04N13/02
CPC分类号： G01S7/4912 , G01S17/36 , G01S17/89 , H04N13/207
摘要： A method to compensate for multi-path in time-of-flight (TOF) three dimensional (3D) cameras applies different modulation frequencies in order to calculate/estimate the error vector. Multi-path in 3D TOF cameras might be caused by one of the two following sources: stray light artifacts in the TOF camera systems and multiple reflections in the scene. The proposed method compensates for the errors caused by both sources by implementing multiple modulation frequencies.
摘要翻译：用于补偿飞行时间（TOF）三维（3D）相机中的多路径的方法应用不同的调制频率，以便计算/估计误差矢量。 3D TOF相机中的多路径可能由以下两个来源之一引起：TOF相机系统中的杂散光伪影和场景中的多次反射。所提出的方法通过实现多个调制频率来补偿由两个源引起的误差。

4. 发明授权

US09753128B2 Multi-path compensation using multiple modulation frequencies in time of flight sensor 有权
公开(公告)号：US09753128B2
公开(公告)日：2017-09-05
申请号：US13189903
申请日：2011-07-25
申请人： Matthias Schweizer , Thierry Oggier , Bernhard Buettgen
发明人： Matthias Schweizer , Thierry Oggier , Bernhard Buettgen
IPC分类号： G01C3/00 , G01S13/08 , G01C3/08 , G01S7/491 , G01S17/36 , H04N13/02 , G01S17/89
CPC分类号： G01S7/4912 , G01S17/36 , G01S17/89 , H04N13/207
摘要： A method to compensate for multi-path in time-of-flight (TOF) three dimensional (3D) cameras applies different modulation frequencies in order to calculate/estimate the error vector. Multi-path in 3D TOF cameras might be caused by one of the two following sources: stray light artifacts in the TOF camera systems and multiple reflections in the scene. The proposed method compensates for the errors caused by both sources by implementing multiple modulation frequencies.

5. 发明授权

US09857469B2 System and method for multi TOF camera operation using phase hopping 有权
公开(公告)号：US09857469B2
公开(公告)日：2018-01-02
申请号：US13280154
申请日：2011-10-24
申请人： Thierry Oggier , Bernhard Buettgen , Matthias Schweizer
发明人： Thierry Oggier , Bernhard Buettgen , Matthias Schweizer
IPC分类号： H04N7/18 , G01C3/08 , G06K9/00 , G01S17/36 , G01S17/10 , H04N13/02 , G01S17/89 , G01S17/87
CPC分类号： G01S17/36 , G01S17/10 , G01S17/87 , G01S17/89 , H04N13/204
摘要： A modulation technique for 3D time-of-flight (TOF) cameras allows the operation of fully autonomous operated 3D TOF cameras. The method subdivides the exposure time into several sub-exposure intervals, for which the signal control unit adds a preferably pseudo-random common phase delay to the illumination and the sensor.

6. 发明授权

US07462808B2 Method and device for redundant distance measurement and mismatch cancellation in phase-measurement systems 有权
标题翻译：相位测量系统中冗余距离测量和失配消除的方法和装置
公开(公告)号：US07462808B2
公开(公告)日：2008-12-09
申请号：US11500266
申请日：2006-08-07
申请人： Felix Lustenberger , Thierry Oggier , Guido Becker , Laurent Lamesch
发明人： Felix Lustenberger , Thierry Oggier , Guido Becker , Laurent Lamesch
IPC分类号： G01N21/00 , G01S17/00
CPC分类号： G01S17/36 , G01S7/497 , G01S17/89
摘要： The method serves for canceling errors caused by mismatch of different signal paths in a photodetector with a plurality (k) of storage elements for the photogenerated signals, as typically used in phase-measurement systems. The signal-capturing process is performed in at least two measurement cycles (j) . A first cycle (j=1) is executed with the conventional setup with no phase delay in the control signals. It is followed by further measurement cycles (j=2, 3, 4) which use control signals shifted by a constant phase shift (90°). Corresponding signals are read out through different signal paths. At the end, the signals corresponding to a certain phase (Φ) are added, thus canceling possible offset values.
摘要翻译：该方法用于消除由具有用于光生信号的多个（k）个存储元件的光电检测器中不同信号路径引起的误差，如通常在相位测量系统中使用的那样。信号捕获处理在至少两个测量周期（j）中进行。第一个周期（j = 1）在传统的设置中执行，在控制信号中没有相位延迟。随后进一步的测量周期（j = 2,3,4），其使用以恒定相移（90°）移位的控制信号。相应的信号通过不同的信号路径读出。最后，添加与特定相位（Phi）对应的信号，从而取消可能的偏移值。

7. 发明申请

US20080247033A1 Device and Method for the Demodulation of Modulated Electric Signals 有权
标题翻译：调制电信号解调的装置和方法
公开(公告)号：US20080247033A1
公开(公告)日：2008-10-09
申请号：US12090433
申请日：2006-10-05
申请人： Bernhard Buettgen , Michael Lehmann , Simon Neukom , Thierry Oggier , Felix Lustenberger
发明人： Bernhard Buettgen , Michael Lehmann , Simon Neukom , Thierry Oggier , Felix Lustenberger
IPC分类号： G02F2/00 , H03D3/02
CPC分类号： H03D7/00
摘要： A demodulation device (1) in semiconductor technology is disclosed. The device (1) is capable of demodulating an injected modulated current. The device (1) comprises an input node (IN1), a sampling stage (DG1, IG1, GS1 IG2, DG2) and at least two output nodes (D1, D2). The sampling stage DG1, IG1, GS1, IG2, DG2) comprises transfer means (GL, GM, GR) for transferring a modulated charge-current signal from the input node (IN1) to one of the output nodes (D1, D2) allocated to the respective time interval within the modulation period. The small size and the ability to reproduce the device (1) in standard semiconductor technologies make possible a cost-efficient integration of the device (1).
摘要翻译：公开了半导体技术中的解调装置（1）。装置（1）能够解调注入的调制电流。装置（1）包括输入节点（IN 1），采样级（DG 1，IG 1，GS 1 IG 2，DG 2）和至少两个输出节点（D 1，D 2）。采样级DG 1，IG 1，GS 1，IG 2，DG 2）包括用于将调制的充电电流信号从输入节点（IN 1）传送到输出节点之一的传送装置（GL，GM，GR）（D 1，D 2）分配给调制周期内的各个时间间隔。在标准半导体技术中，小尺寸和再现设备（1）的能力使得设备（1）的成本有效的集成成为可能。

8. 发明申请

US20070034779A1 Highly sensitive, fast pixel for use in an image sensor 有权
标题翻译：用于图像传感器的高灵敏度，快速像素
公开(公告)号：US20070034779A1
公开(公告)日：2007-02-15
申请号：US11503524
申请日：2006-08-11
申请人： Thierry Oggier , Michael Lehmann , Bernhard Buttgen
发明人： Thierry Oggier , Michael Lehmann , Bernhard Buttgen
IPC分类号： H01L27/00
CPC分类号： H01L31/02024 , G01J3/2803 , H01L27/14603
摘要： The pixel (1) for use in an image sensor comprises a plurality of small-sized radiation-sensitive elements (2.1-2.9) for converting incident radiation into electric signals, the radiation-sensitive elements (2.1-2.9) being properly interconnected to form a larger radiation-sensitive area. The pixel (1) further comprises a plurality of storage elements (3A-3D) for storing the electric signals. The pixel further comprises transfer means for transferring the electric signals from the radiation-sensitive elements (2.1-2.9) to any selected one of the storage elements (3A-3D). The pixel (1) exhibits a high optical sensitivity and a high demodulation speed, and is especially suited for distance-measuring sensors based on the time-of-flight (TOF) principle or interferometry.
摘要翻译：用于图像传感器的像素（1）包括用于将入射辐射转换成电信号的多个小尺寸的辐射敏感元件（2.1-2.9），所述辐射敏感元件（2.1-2.9）被正确互连以形成更大的辐射敏感区域。像素（1）还包括用于存储电信号的多个存储元件（3A-3D）。像素还包括用于将来自辐射敏感元件（2.1-2.9）的电信号传送到存储元件（3A-3D）中的任何选定的一个的传送装置。像素（1）具有高的光学灵敏度和高的解调速度，并且特别适用于基于飞行时间（TOF）原理或干涉测量的距离测量传感器。

9. 发明授权

US09341715B2 Multi-level digital modulation for time of flight method and system 有权
标题翻译：飞行时间方法和系统的多级数字调制
公开(公告)号：US09341715B2
公开(公告)日：2016-05-17
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 , G01S17/89 , G01S7/491 , G01S17/32 , G01S7/481
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。

10. 发明申请

US20090021617A1 On-chip time-based digital conversion of pixel outputs 有权
标题翻译：片上基于时间的数字转换像素输出
公开(公告)号：US20090021617A1
公开(公告)日：2009-01-22
申请号：US12175091
申请日：2008-07-17
申请人： Thierry Oggier , Michael Lehmann , Bernhard Buettgen
发明人： Thierry Oggier , Michael Lehmann , Bernhard Buettgen
IPC分类号： H04N5/335
CPC分类号： G01S17/89
摘要： An integrated sensor chip comprises at least one pixel. The at least one pixel comprises: one or several integration regions for receiving and storing photogenerated charges; a modulation region that moves the photogenerated charges to be stored in the at least two integration regions; and sense nodes, in which each of the sense nodes is associated with one of the integration regions, into which the photogenerated charges are moved from the integration regions during a readout stage. The chip comprises: at least one function generator for generating a time-varying function that is applied to the integration regions during the readout cycle to move the photogenerated changes to the sense nodes; a counter generates a count during the generation of the time-varying function; and registers, in which each of the registers is associated with one of the sense nodes during read out, for storing digital values; wherein the registers store the count in response to the associated sense node receiving photogenerated charges from the associated integration regions.
摘要翻译：集成传感器芯片包括至少一个像素。所述至少一个像素包括：用于接收和存储光生电荷的一个或几个积分区域; 调制区域，其移动要存储在所述至少两个积分区域中的光生电荷; 以及感测节点，其中每个感测节点与所述积分区域之一相关联，所述积分区域在读出阶段期间从所述积分区域移动所述光生电荷。该芯片包括：至少一个功能发生器，用于产生在读出周期期间应用于积分区域的时变功能，以将光生变化移动到感测节点; 在产生时变功能期间，计数器产生计数; 和寄存器，其中每个寄存器在读出期间与感测节点之一相关联，用于存储数字值; 其中所述寄存器响应于所述相关联的感测节点从相关联的积分区域接收光生电荷而存储所述计数。

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