The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Jul. 18, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Jinwoong Kim, Suwon-si, KR;
Cheoggyu Hwang, Suwon-si, KR;
Jinsoo Jeong, Suwon-si, KR;
Jinho Choi, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A differential joint device for a robot includes a first shaft extending in a first direction, a second shaft connected to the first shaft and extending in a second direction vertical to the first direction, a first friction wheel rotatably disposed on one side of the first shaft, a second friction wheel rotatably disposed on another side of the first shaft, a third friction wheel rotatably disposed at one end of the second shaft, the third friction wheel being in contact with the first friction wheel and the second friction wheel, a pitch output encoder disposed to detect a rotation angle of the first shaft, a roll output encoder disposed to detect a rotation angle of the third friction wheel, a first driver configured to rotate the first friction wheel, and a second driver configured to rotate the second friction wheel.