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公开(公告)号：US20150215553A1
公开(公告)日：2015-07-30
申请号：US14420258
申请日：2013-08-07
CPC分类号： H04N5/378 , H03M1/00 , H03M1/002 , H03M1/0607 , H03M1/12 , H03M1/1225 , H03M1/123 , H03M1/145 , H03M1/365 , H03M1/56 , H03M3/39 , H03M3/46 , H04N5/374
摘要： The present invention relates to a two- or multiple-stage analog to digital converter. The converter preferably includes an incremental ADC in the first stage. The incremental ADC comprises an integrator and a comparator. After the predefined number of comparisons performed by the comparator, the output of the integrator appropriately scaled is provided to the second stage where it is further sampled. In particular, the scaling gain is inversely proportional to the integrator gain. The second ADC performs the conversion of the remaining least significant bits and then the output of both stages is combined. Moreover, a calibration and correction approaches are provided for the multi-stage ADC.
摘要翻译： 本发明涉及一种二级或多级模数转换器。 转换器优选地包括在第一级中的增量ADC。 增量ADC包括积分器和比较器。 在由比较器执行预定数量的比较之后，将适当缩放的积分器的输出提供给进一步采样的第二级。 具体而言，缩放增益与积分器增益成反比。 第二个ADC执行剩余的最低有效位的转换，然后组合两个级的输出。 此外，为多级ADC提供校准和校正方法。
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公开(公告)号：US09921300B2
公开(公告)日：2018-03-20
申请号：US14609340
申请日：2015-01-29
发明人： Richard Galera , Anne Bowlby , Derek W. Jones , Nilesh Pradhan , Francis L. Leard , Rafael Dominguez Castro , Sergio Morillas Castillo , Rafael Romay Juárez
CPC分类号： G01S7/4863 , G01S7/4865 , G01S17/10 , G01S17/89
摘要： A time-of-flight (TOF) sensor device is provided that is capable of accurately recovering waveforms of reflected light pulses incident on the sensor's photo-receiver array using a low sampling rate. A number of samples for a received light pulse incident on a given photo-receiver are obtained by emitting a light pulse to the viewing field, integrating the electrical output generated by the photo receiver over an integration period, and adding the integral values for respective integration cycles to yield an accumulation value. This process is repeated for multiple accumulation cycles; however, for each consecutive accumulation cycle the start of the integration period is delayed relative the start time of the integration period for the previous cycle by a delay period. Sampled values for the waveform are obtained by determining the difference values between consecutive accumulation values for the respective accumulation cycles.
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公开(公告)号：US09554072B2
公开(公告)日：2017-01-24
申请号：US14420258
申请日：2013-08-07
IPC分类号： H03M1/12 , H04N5/378 , H03M1/06 , H03M1/14 , H04N5/374 , H03M1/36 , H03M1/00 , H03M1/56 , H03M3/00
CPC分类号： H04N5/378 , H03M1/00 , H03M1/002 , H03M1/0607 , H03M1/12 , H03M1/1225 , H03M1/123 , H03M1/145 , H03M1/365 , H03M1/56 , H03M3/39 , H03M3/46 , H04N5/374
摘要： The present invention relates to a two- or multiple-stage analog to digital converter. The converter preferably includes an incremental ADC in the first stage. The incremental ADC comprises an integrator and a comparator. After the predefined number of comparisons performed by the comparator, the output of the integrator appropriately scaled is provided to the second stage where it is further sampled. In particular, the scaling gain is inversely proportional to the integrator gain. The second ADC performs the conversion of the remaining least significant bits and then the output of both stages is combined. Moreover, a calibration and correction approaches are provided for the multi-stage ADC.
摘要翻译： 本发明涉及一种二级或多级模数转换器。 转换器优选地包括在第一级中的增量ADC。 增量ADC包括积分器和比较器。 在由比较器执行预定数量的比较之后，将适当缩放的积分器的输出提供给进一步采样的第二级。 具体而言，缩放增益与积分器增益成反比。 第二个ADC执行剩余的最低有效位的转换，然后组合两个级的输出。 此外，为多级ADC提供校准和校正方法。
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公开(公告)号：US20150331092A1
公开(公告)日：2015-11-19
申请号：US14609340
申请日：2015-01-29
发明人： Richard Galera , Anne Bowlby , Derek W. Jones , Nilesh Pradhan , Francis L. Leard , Rafael Dominguez Castro , Sergio Morillas Castillo , Rafael Romay Juárez
CPC分类号： G01S7/4863 , G01S7/4865 , G01S17/10 , G01S17/89
摘要： A time-of-flight (TOF) sensor device is provided that is capable of accurately recovering waveforms of reflected light pulses incident on the sensor's photo-receiver array using a low sampling rate. A number of samples for a received light pulse incident on a given photo-receiver are obtained by emitting a light pulse to the viewing field, integrating the electrical output generated by the photo receiver over an integration period, and adding the integral values for respective integration cycles to yield an accumulation value. This process is repeated for multiple accumulation cycles; however, for each consecutive accumulation cycle the start of the integration period is delayed relative the start time of the integration period for the previous cycle by a delay period. Sampled values for the waveform are obtained by determining the difference values between consecutive accumulation values for the respective accumulation cycles.
摘要翻译： 提供飞行时间（TOF）传感器装置，其能够使用低采样率精确地恢复入射在传感器的光接收器阵列上的反射光脉冲的波形。 通过向观看场发射光脉冲，在积分期间对由光电接收器产生的电输出进行积分，并将各积分值的积分值相加，得到入射在给定光接收器上的接收光脉冲的多个样本 循环以产生累积值。 对于多个累积循环重复该过程; 然而，对于每个连续的累积周期，积分周期的开始相对于前一周期的积分周期的开始时间延迟延迟周期。 通过确定各个累积周期的连续累积值之间的差值来获得波形的采样值。
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公开(公告)号：US20190101623A1
公开(公告)日：2019-04-04
申请号：US15719715
申请日：2017-09-29
发明人： Richard Galera , Anne E. Bowlby , Derek W. Jones , Nilesh Pradhan , Amanda Jimenez Marrufo , Fernando Manuel Medeiro Hidalgo , Rafael Dominguez Castro , Rafael Romay Juárez , Sergio Morillas Castillo
摘要： An optical safety scanner system comprises a first illumination source for detecting presence and distances of people or other objects within a hazardous industrial area based on triangulation, and a second illumination source that verifies accurate and reliable detection by the first illumination source. The first illumination source can project LED or laser light for triangulation of objects, and the second illumination source can project a wide beam of light for detection of other intrusive objects that may be blocking the scanner system's camera and preventing accurate triangulation of people or vehicles. If the image frame generated based on the second light identifies presence of an object that is not detected by the triangulation analysis of the laser light, the safety scanner system assumes that an object is obstructing the safety scanner system's camera, and performs a suitable safety action.
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公开(公告)号：US09979904B2
公开(公告)日：2018-05-22
申请号：US14763422
申请日：2014-01-24
发明人： Rafael Dominguez Castro , Sergio Morillas Castillo , Rafael Romay Juárez , Fernando Medeiro Hidalgo
IPC分类号： H04N5/335 , H04N5/345 , H04N5/378 , H04N5/3745
CPC分类号： H04N5/345 , H04N5/37452 , H04N5/378
摘要： The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest is may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry for configuring a region of interest for the sensor array is provided as well as a reading-out circuitry for reading-out pixels belonging to the region of interest. In addition, the corresponding methods for programming the region of interest and for reading-out the region of interest are provided. The circuitry for programming and/or reading-out the region of interest includes per pixel provided storage elements for storing an indication of whether a pixel belongs to a region of interest (ROI). These are configured by the programming circuitry and using when reading-out the ROI for only reading out the pixels of the ROI.
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公开(公告)号：US09894294B2
公开(公告)日：2018-02-13
申请号：US14763391
申请日：2014-01-24
发明人： Rafael Dominguez Castro , Sergio Morillas Castillo , Rafael Romay Juárez , Fernando Medeiro Hidalgo
IPC分类号： H04N5/335 , H04N5/345 , H04N5/378 , H04N5/3745
CPC分类号： H04N5/345 , H04N5/37452 , H04N5/378
摘要： The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest with arbitrary geometry may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry is provided for automatic determining of a ROI and reading out the ROI from the sensor array. The circuitry includes a fast reading-out circuitry which is less precise but faster than the accurate reading-out circuitry for reading-out the pixels of the sensor array. The fast reading-out circuitry reads out the pixels with low-level precision and determines by the processing of the fast read-out pixels the ROI which is then provided to an in-pixel ROI programming circuit for storing the ROI identification and by means thereof to the accurate reading-out circuit which then reads out only the pixels determined to belong to the ROI. The accurate read-out circuit is slower than the fast read-out circuit.
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公开(公告)号：US20150365610A1
公开(公告)日：2015-12-17
申请号：US14763391
申请日：2014-01-24
发明人： Rafael DOMINGUEZ CASTRO , Sergio MORILLAS CASTILLO , Rafael ROMAY JUÁREZ , Fernando MEDEIRO HIDALGO
IPC分类号： H04N5/345 , H04N5/3745 , H04N5/378
CPC分类号： H04N5/345 , H04N5/37452 , H04N5/378
摘要： The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest with arbitrary geometry may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry is provided for automatic determining of a ROI and reading out the ROI from the sensor array. The circuitry includes a fast reading-out circuitry which is less precise but faster than the accurate reading-out circuitry for reading-out the pixels of the sensor array. The fast reading-out circuitry reads out the pixels with low-level precision and determines by the processing of the fast read-out pixels the ROI which is then provided to an in-pixel ROI programming circuit for storing the ROI identification and by means thereof to the accurate reading-out circuit which then reads out only the pixels determined to belong to the ROI. The accurate read-out circuit is slower than the fast read-out circuit.
摘要翻译： 本发明涉及读出传感器阵列像素。 特别地，本发明提供一种方法，根据该方法，只有具有任意几何形状的感兴趣区域可以从传感器阵列中读出，从而导致显着的时间节省。 为了实现这一点，提供了用于自动确定ROI并从传感器阵列读出ROI的电路。 该电路包括一个快速读出电路，它比用于读出传感器阵列像素的精确读出电路的精确度更低。 快速读出电路以低级精度读出像素，并且通过将快速读出像素的处理确定为ROI，然后将ROI提供给用于存储ROI识别的像素内ROI编程电路，并且通过该方法 到准确的读出电路，其然后只读出确定属于ROI的像素。 精确的读出电路比快速读出电路慢。
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公开(公告)号：US20150358571A1
公开(公告)日：2015-12-10
申请号：US14763422
申请日：2014-01-24
发明人： Rafael DOMINGUEZ CASTRO , Sergio MORILLAS CASTILLO , Rafael ROMAY JUÁREZ , Fernando MEDEIRO HIDALGO
IPC分类号： H04N5/3745 , H04N5/378 , H04N5/345
CPC分类号： H04N5/345 , H04N5/37452 , H04N5/378
摘要： The present invention relates to reading-out sensor array pixels. In particular, the present invention provides an approach according to which only a region of interest is may be read out from the sensor array, thus leading to substantial time savings. In order to achieve this, a circuitry for configuring a region of interest for the sensor array is provided as well as a reading-out circuitry for reading-out pixels belonging to the region of interest. In addition, the corresponding methods for programming the region of interest and for reading-out the region of interest are provided. The circuitry for programming and/or reading-out the region of interest includes per pixel provided storage elements for storing an indication of whether a pixel belongs to a region of interest (ROI). These are configured by the programming circuitry and using when reading-out the ROI for only reading out the pixels of the ROI.
摘要翻译： 本发明涉及读出传感器阵列像素。 特别地，本发明提供了一种方法，根据该方法，只有感兴趣的区域可以从传感器阵列读出，从而导致显着的时间节省。 为了实现这一点，提供了用于配置传感器阵列的感兴趣区域的电路以及用于读出属于感兴趣区域的像素的读出电路。 此外，还提供了编制感兴趣区域和读出感兴趣区域的相应方法。 用于编程和/或读出感兴趣区域的电路包括每个像素提供的存储元件，用于存储像素是否属于感兴趣区域（ROI）的指示。 这些由编程电路配置，并在读出ROI以仅读取ROI的像素时使用。
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