MULTI-FUNCTION TIME-OF-FLIGHT SENSOR AND METHOD OF OPERATING THE SAME

    公开(公告)号:US20220018946A1

    公开(公告)日:2022-01-20

    申请号:US17139594

    申请日:2020-12-31

    Inventor: Younggu Jin

    Abstract: A method of operating a time-of-flight (ToF) sensor including at least one depth pixel having a multi-tap structure and a light source illuminating a transmission light to an object is provided. An operation mode of a ToF sensor is determined among a distance detection mode to sense a distance to an object and a plurality of additional operation modes. A plurality of taps of a depth pixel and a light source are controlled based on the determined operation mode such that the plurality of taps generate a plurality of sample data corresponding to the determined operation mode. A sensing result corresponding to the selected operation mode is determined based on the plurality of sample data. A plurality of functions, in addition to a function of the ToF sensor to measure a distance to an object, may be performed efficiently by controlling the plurality of taps of the depth pixel and the light source depending on the operation modes.

    IMAGE SENSORS, IMAGE DETECTING SYSTEMS INCLUDING THE IMAGE SENSORS, AND METHODS OF OPERATING THE IMAGE SENSORS

    公开(公告)号:US20190281241A1

    公开(公告)日:2019-09-12

    申请号:US16225642

    申请日:2018-12-19

    Abstract: Image sensors and methods of operating the image sensors are provided. The image sensors may include a pixel configured to generate an image signal in response to light incident on the pixel. The pixel may include a charge collection circuit configured to collect charges, which are produced by the light incident on the pixel, during a sensing period and a floating diffusion region. The image sensor may further include a storage unit configured to store the charges and, during a transfer period after the sensing period, configured to transfer at least a portion of the charges to the floating diffusion region. An amount of charges that is transferred from the storage unit to the floating diffusion region may be controlled by a voltage level of a storage control signal that is applied to a storage control terminal of the storage unit.

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