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。

公开(公告)号：US08542877B2

公开(公告)日：2013-09-24

申请号：US13254200

申请日：2010-03-01

申请人： Vincent Jeanne ,  Frederik Jan De Bruijn ,  Ruud Vlutters ,  Giovanni Cennini ,  Dmitri Chestakov

发明人： Vincent Jeanne ,  Frederik Jan De Bruijn ,  Ruud Vlutters ,  Giovanni Cennini ,  Dmitri Chestakov

IPC分类号： G06K9/00

CPC分类号： G06T7/20 ,  A61B5/0064 ,  A61B5/0255 ,  A61B5/0816 ,  A61B5/7285 ,  A61B6/541 ,  A61B2562/0233 ,  A61B2562/046 ,  G06T7/90 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/30076 ,  G06T2207/30201

摘要： A method of processing images of at least one living being, includes obtaining a sequence (19) of digital images taken at consecutive points in time. At least one measurement zone (26) comprising a plurality of image points is selected. For each measurement zone (26), a signal (28,30) representative of at least variations in a time-varying value of a combination of pixel values at least a number of the image points for use in determining at least one of a presence and a frequency value of at least one peak in a spectrum of the signal (28,30) corresponding to a frequency of a periodic physiological phenomenon is obtained. The step (25) of selecting at least one measurement zone (26) includes analyzing information based on pixel data of a plurality of image parts in at least one of the images (19), each image part including at least one image point, and selecting each measurement zone (26) from contiguous parts determined to have similar characteristics.

摘要翻译： 一种处理至少一个生物的图像的方法，包括获得在连续的时间点拍摄的数字图像的序列（19）。 选择包括多个图像点的至少一个测量区域（26）。 对于每个测量区域（26），表示至少多个图像点的组合的时间变化值的变化的信号（28,30），用于确定至少一个存在 并且获得与周期性生理现象的频率对应的信号（28,30）的频谱中的至少一个峰值的频率值。 选择至少一个测量区域（26）的步骤（25）包括基于至少一个图像（19）中的多个图像部分的像素数据分析信息，每个图像部分包括至少一个图像点，以及 从被确定为具有相似特征的连续部分中选择每个测量区域（26）。

公开(公告)号：US20110261666A1

公开(公告)日：2011-10-27

申请号：US13176323

申请日：2011-07-05

申请人： Ruud Vlutters ,  Bin Yin

发明人： Ruud Vlutters ,  Bin Yin

IPC分类号： G11B7/125

CPC分类号： G11B7/0062 ,  G11B7/1263 ,  G11B11/10595

摘要： The invention discloses an optical recording drive for recording data on an optical carrier such as an optical disk of the DVD or BD format. A radiation source is arranged to emit a write pulse train (80) for writing an optically detectable effect (90) i.e. a pit or mark. Photo detection means (10) detects a first reflected radiation beam pulse (R1) from a start time portion of the write pulse train (80) and generates a corresponding first signal (PS1) indicative of the power in the first pulse, the photo detection means (10) further detects a second reflected radiation pulse (R2) from an end time portion of the write pulse train (80) and generates a corresponding second signal (PS2) indicative of the power in the second pulse. By comparing (e.g. the heights of) the first signal (PS1) and the second signal (PS2), it is possible an indication of the received power in the optically detectable effect (90) as delivered by a power level (81; 82) in the write pulse train (80) continuously during writing and for a broad range of carrier rotation speeds.

摘要翻译： 本发明公开了一种用于在诸如DVD或BD格式的光盘的光载体上记录数据的光记录驱动器。 辐射源被布置成发射写脉冲串（80），用于写入光学可检测的效果（90），即凹坑或标记。 光检测装置（10）从写入脉冲串（80）的起始时间部分检测第一反射辐射束脉冲（R1），并产生指示第一脉冲中的功率的对应的第一信号（PS1），光检测 装置（10）进一步从写入脉冲串（80）的结束时间部分检测第二反射辐射脉冲（R2），并产生指示第二脉冲中的功率的对应的第二信号（PS2）。 通过将第一信号（PS1）和第二信号（PS2）的比较（例如，高度）与由功率电平（81; 82）传递的可光学检测效应（90）中的接收功率的指示是可能的， 在写入期间连续写入脉冲串（80）以及宽范围的载波转速。

公开(公告)号：US07995441B2

公开(公告)日：2011-08-09

申请号：US12282565

申请日：2007-03-05

申请人： Ruud Vlutters ,  Bin Yin

发明人： Ruud Vlutters ,  Bin Yin

IPC分类号： G11B7/0045

CPC分类号： G11B7/0062 ,  G11B7/1263 ,  G11B11/10595

摘要： The invention discloses an optical recording drive for recording data on an optical carrier such as an optical disk of the DVD or BD format. A radiation source is arranged to emit a write pulse train (80) for writing an optically detectable effect (90) i.e. a pit or mark. Photo detection means (10) detects a first reflected radiation beam pulse (R1) from a start time portion of the write pulse train (80) and generates a corresponding first signal (PS1) indicative of the power in the first pulse, the photo detection means (10) further detects a second reflected radiation pulse (R2) from an end time portion of the write pulse train (80) and generates a corresponding second signal (PS2) indicative of the power in the second pulse. By comparing (e.g. the heights of) the first signal (PS1) and the second signal (PS2), it is possible to get an indication of the received power in the optically detectable effect (90) as delivered by a power level (81; 82) in the write pulse train (80) continuously during writing and for a broad range of carrier rotation speeds.

摘要翻译： 本发明公开了一种用于在诸如DVD或BD格式的光盘的光载体上记录数据的光记录驱动器。 辐射源被布置成发射写脉冲串（80），用于写入光学可检测的效果（90），即凹坑或标记。 光检测装置（10）从写入脉冲串（80）的起始时间部分检测第一反射辐射束脉冲（R1），并产生指示第一脉冲中的功率的对应的第一信号（PS1），光检测 装置（10）进一步从写入脉冲串（80）的结束时间部分检测第二反射辐射脉冲（R2），并产生指示第二脉冲中的功率的对应的第二信号（PS2）。 通过比较（例如，高度）第一信号（PS1）和第二信号（PS2），可以获得光功率级（81）所传递的光学可检测效应（90）中的接收功率的指示。 82）在写入期间连续写入脉冲串（80）以及宽范围的载波转速。

公开(公告)号：US20100085849A1

公开(公告)日：2010-04-08

申请号：US12444700

申请日：2007-10-04

申请人： Bin Yin ,  Ruud Vlutters ,  Willem Marie Julia Marcel Coene ,  Theodorus Petrus Henricus Gerardus Jansen

发明人： Bin Yin ,  Ruud Vlutters ,  Willem Marie Julia Marcel Coene ,  Theodorus Petrus Henricus Gerardus Jansen

IPC分类号： G11B20/00

CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B2220/2537 ,  G11B2220/2541

摘要： The present invention discloses an optical drive and a method for preprocessing a disc readout signal rk of an optical drive on the basis of a set of low-pass filters. The cutoff frequency fC of the filters wk, more particularly, can be set within the optical bandwidth, which improves the Viterbi detection performance in the case of high speed drive operations. Three types of filters are described, in which a Type I shaping filter performs best given a limited hardware cost for the bit detector. Compared to other more advanced noise-whitening techniques, it is only speed dependent and requires little prior knowledge of the channel and noise, thus cheap and easy to design. The invention can be applied in connection with optical disc drives, in particular when high frequency noises are dominant, for example, in the case of high speed operations.

摘要翻译： 本发明公开了一种基于一组低通滤波器对光盘驱动器的盘读出信号rk进行预处理的光驱动器和方法。 滤波器wk的截止频率fC更具体地可以设置在光学带宽内，这提高了在高速驱动操作的情况下的维特比检测性能。 描述了三种类型的滤波器，其中在给定位检测器的有限硬件成本的情况下，I型整形滤波器性能最佳。 与其他更先进的噪声增白技术相比，它只是速度依赖性，并且对通道和噪声几乎没有先前的了解，因此便宜且易于设计。 本发明可以与光盘驱动器结合使用，特别是当高频噪声占主导地位时，例如在高速操作的情况下。

公开(公告)号：US20090296551A1

公开(公告)日：2009-12-03

申请号：US11721541

申请日：2005-12-14

申请人： Ruud Vlutters

发明人： Ruud Vlutters

IPC分类号： G11B27/36

CPC分类号： G11B20/1403 ,  G11B27/36 ,  G11B2020/1476 ,  G11B2220/2541

摘要： A method of determining the transition shift timing in a measured optical signal from an optical recording medium as well as applications of the method in connection with optimizing a write strategy and analyzing the write quality for an optical recording medium are disclosed. The method comprising the step of: providing values of a measured optical signal, providing modulation bits corresponding to the measured optical signal, calculating a model signal by means of an optical channel model, and determining an output timing of the leading and trailing edges from a mathematical model. The method being a recursive method which is continued until a predetermined criterion is fulfilled. The final output is the average transition shifts of the channel bits of the measured CA signal as they are on the optical recording medium. The applications of the method include but are not limited to: a module for determining the average transition shifts, an optical recording apparatus with means for adjusting the write strategy according to the average transition shifts, and an IC for controlling an optical recording apparatus.

摘要翻译： 公开了一种确定来自光学记录介质的测量光信号中的转换移位定时的方法以及该方法在优化写入策略和分析光学记录介质的写入质量方面的应用。 该方法包括以下步骤：提供所测量的光信号的值，提供与所测量的光信号相对应的调制位，借助于光信道模型计算模型信号，以及确定前边缘和后沿的输出定时 数学模型。 该方法是递归方法，直到满足预定标准为止。 最终输出是测量的CA信号的通道位在光记录介质上的平均过渡位移。 该方法的应用包括但不限于：用于确定平均过渡位移的模块，具有根据平均过渡位移调整写入策略的装置的光学记录装置，以及用于控制光学记录装置的IC。

公开(公告)号：US20090147648A1

公开(公告)日：2009-06-11

申请号：US12295763

申请日：2007-03-29

申请人： Ruud Vlutters

发明人： Ruud Vlutters

IPC分类号： G11B20/10 ,  G11B7/005 ,  G11B7/00 ,  H03M13/41

CPC分类号： H03M13/00

摘要： A Maximum Likelihood Sequence Estimator comprises a signal receiver (401) which receives a first signal for decoding. An ISI processor (403) generates a compensation signal from the first signal. The compensation signal represents intersymbol interference outside a channel model window of a Maximum Likelihood Sequence Estimation (MLSE) but does not represent intersymbol interference within the channel model window of the MLSE. A compensation processor (405) generates a compensated signal by compensating the first signal by the compensation signal, e.g. by subtracting the compensation signal from the first signal. The compensated signal is fed to a MLSE decoder (407) which decodes data of the first signal by performing the MLSE on the compensated signal. The invention may provide reduced detection error rates and may in particular be suitable for optical disc reading systems.

摘要翻译： 最大似然序列估计器包括接收用于解码的第一信号的信号接收器（401）。 ISI处理器（403）从第一信号产生补偿信号。 补偿信号表示最大似然序列估计（MLSE）的信道模型窗口之外的符号间干扰，但不表示MLSE的信道模型窗口内的符号间干扰。 补偿处理器（405）通过补偿信号（例如，补偿信号）补偿第一信号来产生补偿信号。 通过从第一信号中减去补偿信号。 补偿信号被馈送到MLSE解码器（407），其通过在补偿信号上执行MLSE来对第一信号的数据进行解码。 本发明可以提供降低的检测误差率，并且可以特别适合于光盘读取系统。

公开(公告)号：US20090046556A1

公开(公告)日：2009-02-19

申请号：US12278985

申请日：2007-01-26

申请人： Ruud Vlutters

发明人： Ruud Vlutters

IPC分类号： G11B20/18

CPC分类号： G11B20/10

摘要： A bit detector (203) for an optical disc reading apparatus comprises an interface (401) which receives central aperture signal values from an optical disc reader (101). The interface is coupled to a threshold detector (403) which assigns a first data value to data bits having corresponding central aperture signal values above a first threshold and a second data value to data bits having corresponding central aperture signal values below a second threshold. The thresholds are set to provide high reliability of the assigned data values and to restrict the data resulting in central aperture signal values between the thresholds to minimum run length sequences. A run length detector (405) assigns data values to at least one data bit of a sequence of data bits having corresponding central aperture signal values between the first and second threshold in response to a run length coding of the data bits and a data value of at least one data bit adjacent to the sequence. Specifically, minimum run length sequences are determined based on the surrounding data.

摘要翻译： 用于光盘读取装置的位检测器（203）包括从光盘读取器（101）接收中心孔径信号值的接口（401）。 该接口耦合到阈值检测器（403），该阈值检测器将第一数据值分配给具有高于第一阈值的对应中心孔径信号值的数据位，以及将第二数据值分配给具有低于第二阈值的相应中心孔径信号值的数据位。 阈值被设置为提供分配的数据值的高可靠性并且限制导致阈值之间的中心孔径信号值到最小游程长度序列的数据。 游程长度检测器（405）响应于数据比特的游程长度编码和数据比特的数据值，将数据值分配给具有在第一和第二阈值之间的对应中心孔径信号值的数据比特序列的至少一个数据比特 与该序列相邻的至少一个数据位。 具体地，基于周围数据确定最小游程长度序列。

公开(公告)号：US07385907B2

公开(公告)日：2008-06-10

申请号：US10540700

申请日：2003-12-18

申请人： Ruud Vlutters ,  Wilhelmus Robert Koppers ,  Pierre Hermanus Woerlee ,  Mark Van Schijndel

发明人： Ruud Vlutters ,  Wilhelmus Robert Koppers ,  Pierre Hermanus Woerlee ,  Mark Van Schijndel

IPC分类号： G11B7/24 ,  B32B3/02

CPC分类号： G11B7/24038 ,  G11B7/2403 ,  G11B7/24067 ,  G11B7/243 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

摘要： A rewritable optical record carrier comprising a first substrate carrying a first recording stack of layers, which recording stack comprises, a first dielectric layer, a recording layer comprising a phase-change recording material, a second dielectric layer, and a metal mirror layer. In order to achieve a maximum R*M said first dielectric layer has a thickness d1 in the range of 20 nm to 50 nm, and said second dielectric layer has a thickness d2 according to the relation 0.0225*d22−2.6572*d2+173.3 (nm)

摘要翻译： 一种可重写光学记录载体，包括承载层的第一记录叠层的第一衬底，该记录层包括第一介电层，包含相变记录材料的记录层，第二介电层和金属镜层。 为了实现最大R * M，所述第一介电层的厚度d 1在20nm至50nm的范围内，并且所述第二介电层具有根据0.0225 * d <2的关系的厚度d 2， /SUB>²-2.6572*d₂+173.3（nm） <0.0225 * D 2 当反射镜层包含铝时，根据关系0.0191 *的厚度d <2> 2 <2>±2.6572 * d 2 +213.3（nm） d 2 -22482 * d 2 +149.6（nm） <0.0191 * D _{2 2 -2.0482 * d 2 + 189.6（nm）。}

公开(公告)号：US20060104189A1

公开(公告)日：2006-05-18

申请号：US10540700

申请日：2003-12-18

申请人： Ruud Vlutters ,  Wilhelmus Koppers ,  Pierre Woerlee ,  Mark Van Schijndel

发明人： Ruud Vlutters ,  Wilhelmus Koppers ,  Pierre Woerlee ,  Mark Van Schijndel

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B7/2403 ,  G11B7/24067 ,  G11B7/243 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/259 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

摘要： A rewritable optical record carrier comprising a first substrate carrying a first recording stack of layers, which recording stack comprises, a first dielectric layer, a recording layer comprising a phase-change recording material, a second dielectric layer, and a metal mirror layer. In order to achieve a maximum R*M said first dielectric layer has a thickness d1 in the range of 20 nm to 50 nm, and said second dielectric layer has a thickness d2 according to the relation 0.0225*d22−2.6572*d2+173.3 (nm)

摘要翻译： 一种可重写光学记录载体，包括承载层的第一记录叠层的第一衬底，该记录层包括第一介电层，包含相变记录材料的记录层，第二介电层和金属镜层。 为了实现最大R * M，所述第一介电层的厚度d 1在20nm至50nm的范围内，并且所述第二介电层具有根据0.0225 * d <2的关系的厚度d 2， /SUB>²-2.6572*d₂+173.3（nm） <0.0225 * D 2 当反射镜层包含铝时，根据关系0.0191 *的厚度d <2> 2 <2>±2.6572 * d 2 +213.3（nm） d 2 -22482 * d 2 +149.6（nm） <0.0191 * D _{2 2 -2.0482 * d 2 + 189.6（nm）。}