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    PIXEL CIRCUIT FOR DETECTING TIME-DEPENDENT VISUAL DATA
    1.
    发明公开
    PIXEL CIRCUIT FOR DETECTING TIME-DEPENDENT VISUAL DATA 审中-公开
    用于检测时间相关的视频数据的PIXEL电路

    公开(公告)号：EP3313064A1

    公开(公告)日：2018-04-25

    申请号：EP16306380.3

    申请日：2016-10-20

    申请人： Chronocam ,  Consejo Superior De Investigaciones Científicas

    发明人： FINATEU, Thomas ,  LINARES BARRANCO, Bernabé ,  SERRANO GOTARREDONA, Teresa ,  POSCH, Christoph

    IPC分类号： H04N5/3745 ,  H04N5/335

    CPC分类号： H04N5/3745 ,  H04N5/335

    摘要： A pixel circuit for detecting time-dependent visual data comprises a photo sensing device detecting a light intensity and generating a signal representing the detected light intensity.
    The pixel circuit further comprises:
    - a voltage amplifier (3) configured for amplifying the signal representing the detected light intensity (V ph ) and generating an amplified signal (V o ), the amplified signal being generated by taking into account a control signal (V qDC ) which shifts an input voltage offset of said voltage amplifier,
    - a hysteresis comparing module (4) configured for comparing the amplified signal to at least one threshold value (θo+, θo- ) and to a reference value (V ref ) and for generating at least one output signal (V o +, V o -;Vo 1+ , V o1- ) based on said comparison, and
    - a feedback control module configured for generating said control signal of said voltage amplifier based on said at least one output signal generated by said hysteresis comparing module.

    摘要翻译： 一种用于检测时间相关的视觉数据的像素电路包括光电传感装置，用于检测光强度并产生表示检测到的光强度的信号。 所述像素电路进一步包括： - 电压放大器（3），其被配置用于放大表示检测到的光强度（Vph）的信号并且生成放大信号（Vo），所述放大信号通过考虑控制信号（VqDC） ，其偏移所述电压放大器的输入电压偏移;滞后比较模块（4），其被配置为将放大的信号与至少一个阈值（θo+，θo-）和参考值（Vref）进行比较，并且用于至少生成 基于所述比较产生一个输出信号（Vo +，Vo-; Vo1 +，Vo1-），以及 - 反馈控制模块，配置用于基于由所述滞后比较模块产生的所述至少一个输出信号产生所述电压放大器的所述控制信号。

    LOW-MISMATCH AND LOW-CONSUMPTION TRANSIMPEDANCE GAIN CIRCUIT FOR TEMPORALLY DIFFERENTIATING PHOTO-SENSING SYSTEMS IN DYNAMIC VISION SENSORS
    3.
    发明公开
    LOW-MISMATCH AND LOW-CONSUMPTION TRANSIMPEDANCE GAIN CIRCUIT FOR TEMPORALLY DIFFERENTIATING PHOTO-SENSING SYSTEMS IN DYNAMIC VISION SENSORS 有权
    将用于时间微分光探测系统，具有动态概述传感器低偏差和低功耗互阻抗放大器电路

    公开(公告)号：EP2717466A1

    公开(公告)日：2014-04-09

    申请号：EP12789077.0

    申请日：2012-05-22

    申请人： Consejo Superior De Investigaciones Científicas (CSIC)

    发明人： SERRANO GOTARREDONA, Teresa ,  LINARES BARRANCO, Bernabé

    IPC分类号： H03F3/08 ,  H03F3/345

    CPC分类号： H04N5/378 ,  H03F1/086 ,  H03F3/082 ,  H03F3/345 ,  H03F2200/456 ,  H03F2200/91

    摘要： The invention relates to a low-mismatch and low-consumption transimpedance gain circuit for temporally differentiating photo-sensing systems in dynamic vision sensors, which uses at least one photodiode and at least two in-series transistors, each of the transistors being connected in diode configuration and being positioned at the output of the photodiode. The output current from the photodiode flows through the drain-source channels of the transistors and the source of the last transistor in series is connected to a voltage selected from ground voltage, a constant voltage or a controlled voltage.

    摘要翻译： 本发明涉及一种低失配和低消费跨阻增益电路，用于动态视觉传感器，它使用至少一个光电二极管和至少两个的串联晶体管时间微分光感测系统中，每个晶体管连接在二极管 配置，并在光电二极管的输出被定位。 来自光电二极管的输出电流流过该晶体管的漏极 - 源极通道和以串联负载晶体管连接到从接地电压，恒定电压或受控电压选择的电压的源极。

    METHOD AND SYSTEM FOR CONVERTING PULSED-PROCESSING NEURAL NETWORK WITH INSTANTANEOUS INTEGRATION SYNAPSES INTO DYNAMIC INTEGRATION SYNAPSES
    5.
    发明公开
    METHOD AND SYSTEM FOR CONVERTING PULSED-PROCESSING NEURAL NETWORK WITH INSTANTANEOUS INTEGRATION SYNAPSES INTO DYNAMIC INTEGRATION SYNAPSES 审中-公开
    方法和系统用于将神经网络与动态集成，可直接集成突触脉冲处理和突触

    公开(公告)号：EP2849083A1

    公开(公告)日：2015-03-18

    申请号：EP13787236.2

    申请日：2013-05-07

    申请人： Consejo Superior De Investigaciones Científicas (CSIC)

    发明人： SERRANO GOTARREDONA, Teresa ,  LINARES BARRANCO, Bernabé

    IPC分类号： G06F17/00

    CPC分类号： G06N3/10 ,  G06N3/04 ,  G06N3/049 ,  G06N3/063 ,  G06N3/08

    摘要： The invention solves the technical problem associated with finding a way of making contributions as if using dynamic synapses, but using the simplest neural circuits possible, such as with instantaneous integration synapses. In this way, each neuron would be capable of making the correct decision, thereby allowing correct recognition on the part of the neural network. For this purpose, each input pulse is replaced with a train of "r" pulses and the "weight" value is attenuated by a value in the vicinity of "r". The "r" pulses are spaced apart for a characteristic time. The spacing of the "r" pulses may or may not be equidistant. Consequently, if a front of simultaneous pulses arrives at the neuron, originating from multiple neurons in the preceding layer, the trains of pulses are interleaved with one another and they all contribute to the decision of the neuron as to whether or not it should be activated.

    摘要翻译： 本发明通过发现做贡献，就好像使用动态突触的一种方式，但使用最简单的神经回路可能，：如瞬时整合突触相关的技术问题。 这样一来，每个神经元将能够作出正确的决定，从而允许在神经网络的部分正确识别的。 为了这个目的，每一个输入脉冲被替换的“R”的脉冲的列车与“重量”值由“R”的附近的值衰减。 的“R”的脉冲间隔开一个特征时间。 的“R”的脉冲的间距可以是或可以不是等距的。 因此，如果同时脉冲的前到达神经元，在preceding-层从多个神经元的起源，脉冲串交错彼此，他们都有助于神经元的决定，即它是否应该被激活 ，

    METHOD AND DEVICE FOR DETECTING THE TEMPORAL VARIATION OF THE LIGHT INTENSITY IN A MATRIX OF PHOTOSENSORS
    7.
    发明公开
    METHOD AND DEVICE FOR DETECTING THE TEMPORAL VARIATION OF THE LIGHT INTENSITY IN A MATRIX OF PHOTOSENSORS 有权
    用于检测光子传感器矩阵中的光强度的时间变化的方法和装置

    公开(公告)号：EP2933995A1

    公开(公告)日：2015-10-21

    申请号：EP13861843.4

    申请日：2013-11-12

    申请人： Consejo Superior De Investigaciones Científicas (CSIC)

    发明人： SERRANO GOTARREDONA, Teresa ,  LINARES BARRANCO, Bernabé

    IPC分类号： H04N3/00 ,  H01L27/14 ,  H01L27/146

    CPC分类号： H04N5/243 ,  H04N5/3355 ,  H04N5/3745 ,  H04N5/37455 ,  H04N5/37457

    摘要： The invention relates to a method and a device for detecting the temporal variation of the light intensity in a matrix of photosensors, comprising a matrix of pixels, a block for the automatic adjustment of the amplification of the photocurrent, and an arbitrating and event-encoding block. Each pixel comprises a photosensor that generates a photocurrent, an adjustable gain current mirror connected to the outlet of the photosensor, a transimpedance amplifier arranged at the outlet of the current mirror, optionally at least one amplification circuit arranged at the outlet of the transimpedance amplifier, and capacitors and detectors of thresholds for determining whether the output voltage exceeds a higher threshold or drops below a lower threshold in order to generate an event in the pixel.

    摘要翻译： 本发明涉及一种用于检测光电传感器矩阵中的光强度的时间变化的方法和设备，该方法和设备包括像素矩阵，用于自动调节光电流放大的块，以及仲裁和事件编码 块。 每个像素包括产生光电流的光电传感器，连接到光电传感器的出口的可调增益电流镜，设置在电流镜的出口处的跨阻放大器，可选地布置在跨阻放大器的出口处的至少一个放大电路， 以及用于确定输出电压是否超过较高阈值或降低到较低阈值以便在像素中产生事件的阈值的电容器和检测器。