VISION SENSOR AND IMAGE PROCESSING DEVICE INCLUDING THE SAME

    公开(公告)号:US20220239859A1

    公开(公告)日:2022-07-28

    申请号:US17494243

    申请日:2021-10-05

    Abstract: A vision sensor including a plurality of pixels configured to sense intensity of incident light, and to output request signals representing an occurrence status of an event; and an event detection circuit configured to generate event data including information about a pixel at which the event occurs, based on the request signals, wherein each pixel of the plurality of pixels includes: a photoelectric conversion device configured to generate a current corresponding to the incident light; a current-to-voltage converter configured to generate a voltage corresponding to the current; an amplifier configured to amplify a variation amount of the generated voltage to generate an output voltage; an event storage configured to generate an event signal corresponding to a comparison between the output voltage and a threshold voltage, and to hold the event signal using cross-coupled transistors; and an output logic configured to output a request signal based on the event signal.

    METHOD AND APPARATUS FOR CONTROLLING THRESHOLD VOLTAGE
    12.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING THRESHOLD VOLTAGE 有权
    用于控制阈值电压的方法和装置

    公开(公告)号:US20170033777A1

    公开(公告)日:2017-02-02

    申请号:US15001430

    申请日:2016-01-20

    Abstract: A method and an apparatus for controlling a threshold voltage are provided. The method includes receiving noise event signals from a sensing core, the sensing core sensing a portion of a moving object, and generating an event signal. The method further includes determining a type of the noise event signals, determining a number of the noise event signals based on the type of the noise event signals, determining whether the number of the noise event signals satisfies a condition, and controlling a threshold voltage value corresponding to the noise event signals in response to the determining that the number of the noise event signals does not satisfy the condition.

    Abstract translation: 提供了一种用于控制阈值电压的方法和装置。 该方法包括从感测核心接收噪声事件信号,感测核心感测移动物体的一部分,以及生成事件信号。 该方法还包括确定噪声事件信号的类型,基于噪声事件信号的类型确定噪声事件信号的数量,确定噪声事件信号的数量是否满足条件,以及控制阈值电压值 响应于确定噪声事件信号的数量不满足条件,对应于噪声事件信号。

    VISION SENSOR AND OPERATING METHOD THEREOF

    公开(公告)号:US20220373389A1

    公开(公告)日:2022-11-24

    申请号:US17729320

    申请日:2022-04-26

    Abstract: A vision sensor and an operating method of the vision sensor are provided. The vision sensor includes a pixel array including a plurality of pixels arranged in a form of a matrix; and a bias voltage generation circuit configured to provide a test bias voltage to the pixel array, wherein each of the plurality of pixels includes a sensing circuit configured to sense light and generate a first output voltage, wherein the first output voltage changes as the test bias voltage changes within a specific frame.

    IMAGE SENSOR INCUDING CMOS IMAGE SENSOR PIXEL AND DYNAMIC VISION SENSOR PIXEL

    公开(公告)号:US20200084403A1

    公开(公告)日:2020-03-12

    申请号:US16552299

    申请日:2019-08-27

    Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.

    DATA COMMUNICATION DEVICE
    18.
    发明申请

    公开(公告)号:US20170168521A1

    公开(公告)日:2017-06-15

    申请号:US15203967

    申请日:2016-07-07

    CPC classification number: G06F1/12

    Abstract: A data communication device is provided. The data communication device includes a data array configured to receive pieces of data, register cells, each register cell of the registers cells being configured to be activated based on a respective one of the pieces of data, and an outputter configured to output information corresponding to a register cell that is activated among the register cells.

    EVENT-BASED SENSOR AND PIXEL OF EVENT-BASED SENSOR
    19.
    发明申请
    EVENT-BASED SENSOR AND PIXEL OF EVENT-BASED SENSOR 审中-公开
    基于事件的传感器和基于事件的传感器的像素

    公开(公告)号:US20170059399A1

    公开(公告)日:2017-03-02

    申请号:US15049326

    申请日:2016-02-22

    CPC classification number: G01J1/42 G06F3/0304 H04N5/3745 H04N5/378

    Abstract: An event-based sensor and a pixel of the event-based sensor are provided. The event-based sensor includes a pixel array including pixels, a selection circuit configured to select a part of the pixels, an event circuit configured to generate an event signal indicating an active pixel sensing an event among the selected part of the pixels, based on output signals of the selected part of the pixels, and an output circuit configured to output information indicating the active pixel based on the event signal.

    Abstract translation: 提供基于事件的传感器和基于事件的传感器的像素。 基于事件的传感器包括包括像素的像素阵列,被配置为选择一部分像素的选择电路,事件电路,被配置为基于以下方式生成表示所选择的像素部分中的事件的活动像素的事件信号: 输出所选择的像素部分的输出信号,以及输出电路,被配置为基于事件信号输出指示有源像素的信息。

    EVENT-BASED VISION SENSOR AND DIFFERENCE AMPLIFIER WITH REDUCED NOISE AND REMOVED OFFSET
    20.
    发明申请
    EVENT-BASED VISION SENSOR AND DIFFERENCE AMPLIFIER WITH REDUCED NOISE AND REMOVED OFFSET 有权
    基于事件的视觉传感器和差分放大器,具有降低噪声和消除偏移

    公开(公告)号:US20160265970A1

    公开(公告)日:2016-09-15

    申请号:US14802401

    申请日:2015-07-17

    Abstract: A circuit configured to amplify a signal from which an offset is cancelled includes an amplifier including an input stage configured to receive an input signal, the amplifier configured to amplify the input signal and output the amplified signal, and a switch including a transistor configured to reset the amplifier in response to a reset signal, the transistor including a body node connecting the transistor to the circuit, the transistor being configured to form a current path between the body node of the transistor and the input stage of the amplifier.

    Abstract translation: 配置为放大消除偏移的信号的电路包括:放大器,包括被配置为接收输入信号的输入级,放大器,被配置为放大输入信号并输出​​放大的信号;以及开关,其包括被配置为复位的晶体管 所述放大器响应于复位信号,所述晶体管包括将所述晶体管连接到所述电路的体节点,所述晶体管被配置为在所述晶体管的体节点和所述放大器的输入级之间形成电流路径。

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