公开(公告)号：US20240004274A1

公开(公告)日：2024-01-04

申请号：US18200770

申请日：2023-05-23

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Chang Yeon KIM ,  Won Joon Kong ,  Kyoung Jae Lee

IPC: G03B17/56 ,  G01R33/07 ,  F16M11/12

CPC classification number: G03B17/561 ,  G01R33/07 ,  F16M11/126

Abstract: Embodiments of the present disclosure relate to an apparatus and method for adjusting an attitude of a target object. An attitude adjusting apparatus includes: a driving device that includes a motor that generates a driving force; and a controller that adjusts an attitude of a target object by referring to a rotation angle of the motor. The driving device includes: a sensing module that generates a magnetic field and senses a change of the magnetic field; and a target that rotates by the driving force of the motor, the target including one blade that changes the magnetic field generated by the sensing module, and the controller determines the rotation angle of the motor by referring to the change of the at least one magnetic field sensed after a preset waiting time has elapsed from a point in time at which rotation of the motor is terminated.

公开(公告)号：US11689806B2

公开(公告)日：2023-06-27

申请号：US17199596

申请日：2021-03-12

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Chang Yeon Kim ,  Won Joon Kong ,  Jong In Park ,  Kyoung Jae Lee ,  Ho Seoung Hwang

IPC: H04N23/67 ,  G02B7/10 ,  H04N23/695 ,  H04N25/704

CPC classification number: H04N23/67 ,  G02B7/102 ,  H04N23/695 ,  H04N25/704

Abstract: A photo sensor assembly may include: a rotator configured to rotate together with a camera module; a plurality of first photo interrupter bars disposed at a same interval along a first circumference on the rotator; a second photo interrupter bar disposed at a second circumference on the rotator; a first photo sensor disposed closer to the first circumference than to the second circumference, and configured to detect a first light-blocking pattern generated from the plurality of first photo interrupter bars; a second photo sensor disposed closer to the second circumference than to the first circumference, and configured to detect a second light-blocking pattern generated from the second photo interrupter bar; and a processor configured to estimate an initial position of the rotator based on the second light-blocking pattern and estimate a rotational angle from the initial position of the rotator based on the detected first light-blocking pattern.

公开(公告)号：US11650041B2

公开(公告)日：2023-05-16

申请号：US17201498

申请日：2021-03-15

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Chang Yeon Kim ,  Won Joon Kong ,  Jong In Park ,  Kyoung Jae Lee

IPC: G01B7/30 ,  G03B17/56 ,  G01D5/14

CPC classification number: G01B7/30 ,  G01D5/145 ,  G03B17/561

Abstract: A magnetic sensor assembly for detecting angular positions of a camera module, includes: a housing; a rotation member configured to rotate together with the camera module; a magnet member that is configured to rotate with the rotation member on at least a portion of the housing, the magnet member includes a first multi-pole magnetized magnet that has a first number of pole pairs alternately disposed along a first circumference on the rotation member, and further includes a second multi-pole magnetized magnet that has a second number of pole pairs alternately disposed along a second circumference on the rotation member; a hall sensor configured to detect a change of magnetic field generated from the first multi-pole magnetized magnet and the second multi-pole magnetized magnet; and a processor configured to estimate an initial position of the rotation member and a rotational angle from the initial position using the detected magnetic field.