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1. 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。

2. 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。

3. 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。

4. 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。

5. 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。

6. 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.

7. 发明授权

US09698196B2 Demodulation pixel incorporating majority carrier current, buried channel and high-low junction 有权
公开(公告)号：US09698196B2
公开(公告)日：2017-07-04
申请号：US12856701
申请日：2010-08-16
申请人： Bernhard Buettgen , Jonas Felber , Michael Lehmann , Thierry Oggier
发明人： Bernhard Buettgen , Jonas Felber , Michael Lehmann , Thierry Oggier
IPC分类号： H01L31/08 , H01L27/144 , H01L27/148
CPC分类号： H01L27/14812 , H01L27/14806
摘要： A demodulation pixel improves the charge transport speed and sensitivity by exploiting two effects of charge transport in silicon in order to achieve the before-mentioned optimization. The first one is a transport method based on the CCD gate principle. However, this is not limited to CCD technology, but can be realized also in CMOS technology. The charge transport in a surface or even a buried channel close to the surface is highly efficient in terms of speed, sensitivity and low trapping noise. In addition, by activating a majority carrier current flowing through the substrate, another drift field is generated below the depleted CCD channel. This drift field is located deeply in the substrate, acting as an efficient separator for deeply photo-generated electron-hole pairs. Thus, another large amount of minority carriers is transported to the diffusion nodes at high speed and detected.

8. 发明授权

US08223215B2 Adaptive neighborhood filtering (ANF) system and method for 3D time of flight cameras 有权
标题翻译：用于3D飞行时间相机的自适应邻域滤波（ANF）系统和方法
公开(公告)号：US08223215B2
公开(公告)日：2012-07-17
申请号：US12363169
申请日：2009-01-30
申请人： Thierry Oggier , Bernhard Buettgen , Thierry Zamofing
发明人： Thierry Oggier , Bernhard Buettgen , Thierry Zamofing
IPC分类号： H04N5/228
CPC分类号： G01S17/89 , G06T5/002 , G06T7/55
摘要： A method for filtering distance information from a 3D-measurement camera system comprises comparing amplitude and/or distance information for pixels to adjacent pixels and averaging distance information for the pixels with the adjacent pixels when amplitude and/or distance information for the pixels is within a range of the amplitudes and/or distances for the adjacent pixels. In addition to that the range of distances may or may not be defined as a function depending on the amplitudes.
摘要翻译：用于从3D测量相机系统滤波距离信息的方法包括将像素的幅度和/或距离信息与相邻像素进行比较，并且当像素的幅度和/或距离信息在相邻像素的幅度和/或距离的范围。除此之外，距离的范围可以被定义为取决于幅度的函数。

9. 发明申请

US20110089471A1 Demodulation Pixel Incorporating Majority Carrier Current, Buried Channel and High-Low Junction 有权
标题翻译：解调像素结合多数载波电流，埋地通道和高低端
公开(公告)号：US20110089471A1
公开(公告)日：2011-04-21
申请号：US12856701
申请日：2010-08-16
申请人： Bernhard Buettgen , Jonas Felber , Michael Lehmann , Thierry Oggier
发明人： Bernhard Buettgen , Jonas Felber , Michael Lehmann , Thierry Oggier
IPC分类号： H01L31/08
CPC分类号： H01L27/14812 , H01L27/14806
摘要： A demodulation pixel improves the charge transport speed and sensitivity by exploiting two effects of charge transport in silicon in order to achieve the before-mentioned optimization. The first one is a transport method based on the CCD gate principle. However, this is not limited to CCD technology, but can be realized also in CMOS technology. The charge transport in a surface or even a buried channel close to the surface is highly efficient in terms of speed, sensitivity and low trapping noise. In addition, by activating a majority carrier current flowing through the substrate, another drift field is generated below the depleted CCD channel. This drift field is located deeply in the substrate, acting as an efficient separator for deeply photo-generated electron-hole pairs. Thus, another large amount of minority carriers is transported to the diffusion nodes at high speed and detected.
摘要翻译：解调像素通过利用硅中的电荷传输的两种效应来提高电荷传输速度和灵敏度，以便实现前述的优化。第一种是基于CCD门原理的传输方法。然而，这不仅限于CCD技术，而且还可以在CMOS技术中实现。在速度，灵敏度和低陷阱噪声方面，表面甚至靠近表面的掩埋通道中的电荷传输都是高效的。此外，通过激活流过衬底的多数载流子电流，在耗尽的CCD通道之下产生另一个漂移场。该漂移场深深地位于基板中，作为深色光电子 - 空穴对的有效分离器。因此，另外大量少数载体被高速运送到扩散节点并进行检测。

10. 发明授权

US07671671B2 Device and method for the demodulation of modulated electric signals 有权
标题翻译：用于解调调制电信号的装置和方法
公开(公告)号：US07671671B2
公开(公告)日：2010-03-02
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： G01R25/00 , H03D13/00 , H03K17/693
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。设备（1）包括输入节点（IN1），采样级（DG1，IG1，GS1，IG2，DG2）和至少两个输出节点（D1，D2）。采样级DG1，IG1，GS1，IG2，DG2）包括用于将调制的充电电流信号从输入节点（IN1）传送到分配的输出节点（D1，D2）之一的传送装置（GL，GM，GR）到调制周期内的相应时间间隔。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。

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