公开(公告)号：US20240319366A1

公开(公告)日：2024-09-26

申请号：US18612741

申请日：2024-03-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daeyun KIM ,  Myoungoh KI ,  Jonghan Ahn

IPC: G01S17/26 ,  G01S7/4863 ,  G01S7/4865 ,  G01S17/894 ,  G06F1/06

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.