公开(公告)号：US20250001548A1

公开(公告)日：2025-01-02

申请号：US18538337

申请日：2023-12-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jwahyeon KIM ,  Kyungyeol KIM ,  Taesung KIM ,  Hyuntae KIM ,  Byunghyuck AHN

IPC: B24B45/00 ,  B24B7/22

Abstract: A grinder may include a spindle, a grinding wheel and a mount disk. The spindle may be configured to generate a rotary force. The grinding wheel may be configured to receive the rotary force from the spindle and grind an object. The mount disk may be between the spindle and the grinding wheel and may be configured automatically engage or disengage the grinding wheel based on a rotation direction of the mount disk. Thus, an exchange or replacement of the grinding wheel may be performed in a short time by rotating the spindle so that the grinding wheel is disengaged from the mount disk.

公开(公告)号：US20230205408A1

公开(公告)日：2023-06-29

申请号：US17989889

申请日：2022-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunyoung KIM ,  Hyuntae KIM ,  Dongho LEE ,  Jaewon JUNG ,  Jisoo KIM ,  Sooyeoun YOON

IPC: G06F3/04845 ,  G06F3/0362

CPC classification number: G06F3/04845 ,  G06F3/0362

Abstract: A display apparatus includes a display; a receiver configured to receive a signal from an external input device including a control knob; at least one memory storing instructions; and at least one processor electrically connected to the display and the receiver, and which executes the stored instructions. The at least one processor displays a first content image on the display, display a rotation of the control knob of the external input device and a size of the first content image on the display based on the received signal corresponding to a user input which is input through the external input device, and change a size of the first content image and display the changed size of the first content image on the display, based on at the received signal corresponding to the rotation of the control knob of the external input device.