US 12,223,127 B2
Active stylus having physical writing function
Shih-Yen Lee, Zhubei (TW); Tzu-Yu Ting, Zhubei (TW); Yeh Sen-Fan Chueh, Zhubei (TW); Min-Hung Lin, New Taipei (TW); and Shih-Hsiung Hsiao, New Taipei (TW)
Assigned to Renaisser Technology Co., Ltd. Corp., Zhubei (CN); and Dexin Corp., New Taipei (CN)
Filed by RENAISSER TECHNOLOGY CO., LTD., Zhubei (TW); and DEXIN CORP., New Taipei (TW)
Filed on Jul. 27, 2023, as Appl. No. 18/226,830.
Claims priority of application No. 202222446601.8 (CN), filed on Sep. 15, 2022.
Prior Publication US 2024/0094834 A1, Mar. 21, 2024
Int. Cl. G06F 3/0354 (2013.01); G06F 3/044 (2006.01)
CPC G06F 3/03545 (2013.01) [G06F 3/0442 (2019.05)] 14 Claims
OG exemplary drawing
 
1. An active stylus having physical writing function, comprising:
a tip shell including a first opening formed at a cross section of the tip shell and a second opening formed at a bottom of the tip shell, wherein the tip shell includes non-conductive material and wherein a first limit ring is formed on an inner side of the tip shell and close to the first opening and a second limit ring is formed on the inner side of the tip shell and located between the first opening and the second opening; and
a first electrode including a writing electrode and a non-writing electrode, wherein a first end of the writing electrode protrudes through the first opening of the tip shell and a second end of the writing electrode is received by a receiving cavity of the non-writing electrode and wherein an end of the non-writing electrode which is away from the writing electrode protrudes through the second opening of the tip shell and entered a main body housing of the active stylus, wherein the first electrode includes conductive material;
wherein the writing electrode is configured to leave colored traces on an object by physical friction caused between the writing electrode and the object; and
wherein the first limit ring is configured to prevent the writing electrode from detaching.