IMAGE SENSOR, CAMERA MODULE INCLUDING THE IMAGE SENSOR, AND OPERATING METHOD OF THE IMAGE SENSOR

    公开(公告)号:US20240319366A1

    公开(公告)日:2024-09-26

    申请号:US18612741

    申请日:2024-03-21

    CPC classification number: G01S17/26 G01S7/4863 G01S7/4865 G01S17/894 G06F1/06

    Abstract: An image sensor for measuring a depth of an object disposed in an unambiguous range is provided. The image sensor includes: a modulation clock generating circuit configured to generate N modulation clock signals respectively having N phases; a demodulation clock generating circuit configured to generate N demodulation clock signals respectively having N phases respectively corresponding to the N modulation clock signals; a phase selection circuit configured to select one modulation clock signal from among the N modulation clock signals to output as a pre-modulation signal, based on a random number, and select, from among the N demodulation clock signals, and output as N pre-demodulation signals corresponding to the pre-modulation signal, based on the random number; and a time gating circuit configured to control a time at which the pre-modulation signal and the N pre-demodulation signals are applied, based on the unambiguous range.

    IMAGING DEVICE
    4.
    发明申请

    公开(公告)号:US20220166946A1

    公开(公告)日:2022-05-26

    申请号:US17381777

    申请日:2021-07-21

    Abstract: An imaging device includes a light source operated by an optical control signal generated using a first reference signal having a first frequency and a second reference signal, having a second frequency different from the first frequency, a plurality of pixels, each of the plurality of pixels including a pixel circuit outputting a pixel signal corresponding to the electrical charge of a photodiode, and a logic circuit configured to generate raw data to generate a depth image, using the pixel signal. The plurality of pixels include first pixels and second pixels, and the logic circuit inputs a first photo control signal, having the first frequency, to the pixel circuit connected to a photodiode in each of the first pixels, and inputs a second photo control signal, having the second frequency, to the pixel circuit connected to a photodiode in each of the second pixels.

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