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1. 发明授权

US09379814B2 Light detection system and method 有权
标题翻译：光检测系统及方法
公开(公告)号：US09379814B2
公开(公告)日：2016-06-28
申请号：US14004773
申请日：2012-03-22
申请人： Frits De Bruijn , Ruud Vlutters , Lorenzo Feri , Tim Schenk , Ronald Rietman
发明人： Frits De Bruijn , Ruud Vlutters , Lorenzo Feri , Tim Schenk , Ronald Rietman
IPC分类号： H04B10/116 , H04B10/54 , H04N5/225 , H05B37/02 , H04B10/548 , H04B10/69 , H04N5/353
CPC分类号： H04B10/116 , H04B10/54 , H04B10/548 , H04B10/69 , H04N5/225 , H04N5/2256 , H04N5/235 , H04N5/3532 , H05B37/02 , H05B37/0272 , H05B37/029
摘要： There is provided a light detection system which is capable of determining in light embedded codes by detecting light in a scene which is illuminated by an illumination system (110) comprising one or more light sources (111,112,113) each providing a light contribution (I111, I112, I113) comprising an embedded code (ID#1, ID#2, ID#3) emitted as a temporal sequence of modulations in a characteristics of the light emitted. The light detection system comprises light detection means (220), which are arranged for acquiring at least one image of the scene, where the image is acquired a plurality of temporal shifted line instances. Each line of the acquired image comprises an instance of the temporal sequence of modulations of the first embedded code. The light detection system further comprises means (230) for determining embedded codes from the spatial pattern of modulations.
摘要翻译：提供一种光检测系统，其能够通过检测由包括一个或多个光源（111,112,113）的照明系统（110）照亮的场景中的光来确定光嵌入代码，每个光源（111,112,113）提供光贡献（I111，I112 ，I113），其包括作为发射的光的特性的调制的时间序列发射的嵌入码（ID＃1，ID＃2，ID＃3）。光检测系统包括光检测装置（220），其被设置用于获取场景的至少一个图像，其中获取图像多个时间偏移线实例。所获取的图像的每一行包括第一嵌入代码的调制的时间序列的实例。光检测系统还包括用于从调制的空间模式确定嵌入代码的装置（230）。

2. 发明申请

US20140314420A1 Light detection system and method 有权
标题翻译：光检测系统及方法
公开(公告)号：US20140314420A1
公开(公告)日：2014-10-23
申请号：US14004773
申请日：2012-03-22
申请人： Frits De Bruijn , Ruud Vlutters , Lorenzo Feri , Tim Schenk , Ronald Rietman
发明人： Frits De Bruijn , Ruud Vlutters , Lorenzo Feri , Tim Schenk , Ronald Rietman
IPC分类号： H04B10/116 , H04N5/225 , H04B10/548 , H05B37/02 , H04B10/69 , H04B10/54
CPC分类号： H04B10/116 , H04B10/54 , H04B10/548 , H04B10/69 , H04N5/225 , H04N5/2256 , H04N5/235 , H04N5/3532 , H05B37/02 , H05B37/0272 , H05B37/029
摘要： There is provided a light detection system which is capable of determining in light embedded codes by detecting light in a scene which is illuminated by an illumination system (110) comprising one or more light sources (111,112,113) each providing a light contribution (I111, I112, I113) comprising an embedded code (ID#1, ID#2, ID#3) emitted as a temporal sequence of modulations in a characteristics of the light emitted. The light detection system comprises light detection means (220), which are arranged for acquiring at least one image of the scene, where the image is acquired a plurality of temporal shifted line instances. Each line of the acquired image comprises an instance of the temporal sequence of modulations of the first embedded code. The light detection system further comprises means (230) for determining embedded codes from the spatial pattern of modulations.
摘要翻译：提供一种光检测系统，其能够通过检测由包括一个或多个光源（111,112,113）的照明系统（110）照亮的场景中的光来确定光嵌入代码，每个光源（111,112,113）提供光贡献（I111，I112 ，I113），其包括作为发射的光的特性的调制的时间序列发射的嵌入码（ID＃1，ID＃2，ID＃3）。光检测系统包括光检测装置（220），其被设置用于获取场景的至少一个图像，其中获取图像多个时间偏移线实例。所获取的图像的每一行包括第一嵌入代码的调制的时间序列的实例。光检测系统还包括用于从调制的空间模式确定嵌入代码的装置（230）。

3. 发明申请

US20120281987A1 Data Detection For Visible Light Communications Using Conventional Camera Sensor 有权
标题翻译：使用传统相机传感器的可见光通信的数据检测
公开(公告)号：US20120281987A1
公开(公告)日：2012-11-08
申请号：US13520589
申请日：2011-01-13
申请人： Tim Corneel Wilhelmus Schenk , Frederik Jan De Bruijn , Ruud Vlutters , Lorenzo Feri
发明人： Tim Corneel Wilhelmus Schenk , Frederik Jan De Bruijn , Ruud Vlutters , Lorenzo Feri
IPC分类号： H04B10/10
CPC分类号： H05B37/0272 , H05B37/029
摘要： The invention relates to a detection system for determining data embedded into the light output of a light source in a form of a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. The processing unit is configured to process the acquired series of images to determine the repeating sequence of N symbols. By carefully triggering when a shutter of the camera is open to capture the different symbols of the encoded light within each frame time of a camera, a conventional camera with a relatively long frame time may be employed. Therefore, the techniques presented herein are suitable for detecting the invisible “high frequency” coded light while using less expensive cameras as those used in the prior art.
摘要翻译：本发明涉及一种用于以N个符号的重复序列的形式确定嵌入到光源的光输出中的数据的检测系统。检测系统包括照相机和处理单元。相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。处理单元被配置为处理所获取的一系列图像以确定N个符号的重复序列。通过在相机的快门被打开以捕捉相机的每个帧时间内的编码光的不同符号时，通过小心地触发，可以采用具有相对长的帧时间的常规相机。因此，本文中提出的技术适用于在使用比现有技术中使用的较便宜的照相机时检测不可见的高频编码光。

4. 发明申请

US20120281879A1 Method and System for 2D Detection of Localized Light Contributions 有权
标题翻译：二维检测局部光贡献的方法与系统
公开(公告)号：US20120281879A1
公开(公告)日：2012-11-08
申请号：US13520588
申请日：2011-01-11
申请人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
发明人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
IPC分类号： G06K9/46 , H04N7/18
CPC分类号： H05B37/02 , G06K9/2036
摘要： The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols.
摘要翻译：本发明涉及一种用于确定在2D场景内的选定位置是否存在光源的光贡献的检测系统。光贡献包括包括N个符号的重复序列的嵌入代码。检测系统包括照相机和处理单元。相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。每个图像包括多个像素，每个像素表示在场景内的不同物理位置处的光源的光输出的强度。处理单元被配置为处理所获取的一系列图像以确定第一光源的光贡献是否存在于场景内的所选物理位置。将所选择的所选择的物理位置的序列的像素序列与N个符号的第一序列相关联。

5. 发明授权

US08942570B2 Data detection for visible light communications using conventional camera sensor 有权
标题翻译：使用常规相机传感器的可见光通信的数据检测
公开(公告)号：US08942570B2
公开(公告)日：2015-01-27
申请号：US13520589
申请日：2011-01-13
申请人： Tim Corneel Wilhelmus Schenk , Frederik Jan De Bruijn , Ruud Vlutters , Lorenzo Feri
发明人： Tim Corneel Wilhelmus Schenk , Frederik Jan De Bruijn , Ruud Vlutters , Lorenzo Feri
IPC分类号： H04B10/00 , H05B37/02
CPC分类号： H05B37/0272 , H05B37/029
摘要： The invention relates to a detection system for determining data embedded into the light output of a light source in a form of a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. The processing unit is configured to process the acquired series of images to determine the repeating sequence of N symbols. By carefully triggering when a shutter of the camera is open to capture the different symbols of the encoded light within each frame time of a camera, a conventional camera with a relatively long frame time may be employed. Therefore, the techniques presented herein are suitable for detecting the invisible “high frequency” coded light while using less expensive cameras as those used in the prior art.
摘要翻译：本发明涉及一种用于以N个符号的重复序列的形式确定嵌入到光源的光输出中的数据的检测系统。检测系统包括照相机和处理单元。相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。处理单元被配置为处理所获取的一系列图像以确定N个符号的重复序列。通过在相机的快门被打开以捕捉相机的每个帧时间内的编码光的不同符号时，通过小心地触发，可以采用具有相对长的帧时间的常规相机。因此，本文所提出的技术适用于检测不可见的“高频”编码光，同时使用比现有技术中使用的较便宜的照相机。

6. 发明授权

US08755561B2 Method and system for 2D detection of localized light contributions 有权
标题翻译：用于二维检测局部光贡献的方法和系统
公开(公告)号：US08755561B2
公开(公告)日：2014-06-17
申请号：US13520588
申请日：2011-01-11
申请人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
发明人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
IPC分类号： G06K9/00
CPC分类号： H05B37/02 , G06K9/2036
摘要： The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols.
摘要翻译：本发明涉及一种用于确定在2D场景内的选定位置是否存在光源的光贡献的检测系统。光贡献包括包括N个符号的重复序列的嵌入代码。检测系统包括照相机和处理单元。相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。每个图像包括多个像素，每个像素表示在场景内的不同物理位置处的光源的光输出的强度。处理单元被配置为处理所获取的一系列图像以确定第一光源的光贡献是否存在于场景内的所选物理位置。将所选择的所选择的物理位置的序列的像素序列与N个符号的第一序列相关联。

7. 发明授权

US09131221B2 Stereoscopic image capturing method, system and camera 有权
标题翻译：立体图像拍摄方法，系统和相机
公开(公告)号：US09131221B2
公开(公告)日：2015-09-08
申请号：US13379453
申请日：2010-06-21
申请人： Ruud Vlutters , Frederik Jan De Bruijn , Dmitry Nikolaevich Znamenskiy
发明人： Ruud Vlutters , Frederik Jan De Bruijn , Dmitry Nikolaevich Znamenskiy
IPC分类号： H04N13/00 , H04N13/02
CPC分类号： H04N13/218 , H04N13/10 , H04N13/207 , H04N13/289
摘要： A camera and camera system is provided with an optical device (8). The optical device creates simultaneously two or more images of object on a sensor (4) forming a compound image. The distance d between the constituting images of objects in the compound image is dependent on the distance Z to the camera. The compound image is analyzed (9), e.g. deconvolved to determine the distances d between the double images. These distances are then converted into a depth map (10).
摘要翻译：相机和相机系统设置有光学装置（8）。光学装置在形成复合图像的传感器（4）上同时产生两个或多个物体图像。复合图像中物体的构成图像之间的距离d取决于相机的距离Z。分析复合图像（9），例如解卷积以确定双重图像之间的距离d。然后将这些距离转换成深度图（10）。

8. 发明授权

US08934005B2 System and method for remote measurement of optical focus 有权
标题翻译：用于远程测量光学焦点的系统和方法
公开(公告)号：US08934005B2
公开(公告)日：2015-01-13
申请号：US14232016
申请日：2012-07-03
申请人： Frederik Jan De Bruijn , Ruud Vlutters , Harold Agnes Wilhelmus Schmeitz , Tommaso Gritti
发明人： Frederik Jan De Bruijn , Ruud Vlutters , Harold Agnes Wilhelmus Schmeitz , Tommaso Gritti
IPC分类号： H04N7/18 , G06F3/01 , A61B3/10
CPC分类号： H04N7/18 , A61B3/10 , A61B3/14 , G06F3/013
摘要： A system and method that measures an optical focus of a distant optical imaging system (EYE), in particular the ocular accommodation of a distant human subject. A luminous pattern of light (P1, A1) is projected by a projector (P) in focus (A2) at a known focal plane (FPL1) in front of the distant optical imaging system (EYE), and an image of the reflection of the pattern (A3) on a sensor surface of the distant optical imaging system (EYE), for instance the retina of an eye, is recorded by a camera (CAM) having an optical axis (AXCAM) coinciding at least partly with or situated close to the optical axis (AXP) of the projection device (P). The sharpness of the luminous pattern (A3) reflected from the sensor surface (retina) is determined.
摘要翻译：测量远距离光学成像系统（EYE）的光学焦点的系统和方法，特别是遥远的人类对象的眼睛适应。在远距离光学成像系统（EYE）前面的已知焦平面（FPL1）处，通过投影仪（P）在聚焦（A2）处投射光（P1，A1）的发光图案，并且反射的图像远距离光学成像系统（EYE）的传感器表面（EYE）上的图案（A3）例如眼睛的视网膜由相机（CAM）记录，该照相机（CAM）具有至少部分地或位于近处的光轴（AXCAM）到投影装置（P）的光轴（AXP）。确定从传感器表面（视网膜）反射的发光图案（A3）的清晰度。

9. 发明授权

US07885152B2 Single spot cross-correlation tracking 失效
标题翻译：单点互相关跟踪
公开(公告)号：US07885152B2
公开(公告)日：2011-02-08
申请号：US11993896
申请日：2006-06-27
申请人： Ruud Vlutters , Bin Yin
发明人： Ruud Vlutters , Bin Yin
IPC分类号： G11B7/00
CPC分类号： G11B7/0901 , G11B7/0943 , G11B2007/0013
摘要： A tracking error (TE) signal is formed from a single spot on a photodetector 25 to improve the robustness in optical disc applications having a reduced track-pitch. Reduced track pitches are employed in high data capacity optical disc formats. By using high frequency cross-correlation of a central aperture signal, the differences within the left 21 and right 23 detector halves yield a divergence from the zero crossing that produces a more pronounced tracking signal. The more pronounced tracking signal is insensitive to incoherent cross talk in multi-layer discs.
摘要翻译：从光电检测器25上的单个点形成跟踪误差（TE）信号，以改善具有减小的轨道间距的光盘应用的鲁棒性。在高数据容量的光盘格式中采用减少轨道间距。通过使用中心孔径信号的高频互相关，左侧21和右侧23个检测器之间的差异部分产生了从过零点产生更明显的跟踪信号的偏差。更明显的跟踪信号对多层光盘中的非相干串扰不敏感。

10. 发明授权

US07822085B2 Method of controlling a diode device for use in optical storage systems 失效
标题翻译：控制用于光存储系统的二极管器件的方法
公开(公告)号：US07822085B2
公开(公告)日：2010-10-26
申请号：US10562285
申请日：2004-06-24
申请人： Johannes Joseph Hubertina Barbara Schleipen , Ruud Vlutters
发明人： Johannes Joseph Hubertina Barbara Schleipen , Ruud Vlutters
IPC分类号： H01S3/00
CPC分类号： G11B7/126 , G11B7/00456
摘要： A system and method is provided which compensates for the effects of relaxation oscillations and turn-on delays of diode laser devices. In particular, there is provided a method and system for tuning the shape of the power profile of an output optical signal and its position with respect to a channel bit clock of an optical recording system.
摘要翻译：提供了补偿二极管激光器件的弛豫振荡和导通延迟的影响的系统和方法。具体地，提供了一种用于调整输出光信号的功率曲线的形状及其相对于光学记录系统的通道位时钟的位置的方法和系统。

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