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:
Sep. 21, 2021
Filed:
Apr. 25, 2019
Hongfujin Precision Electronics (Zhengzhou) Co., Ltd., Zhengzhou, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Ji-Xiang Yin, Zhengzhou, CN;
Jiang-Feng Shan, Zhengzhou, CN;
Xiao-Qing Zhang, Zhengzhou, CN;
Bo Zhang, Shenzhen, CN;
HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD., Zhengzhou, CN;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A protection circuit of a USB device can interrupt and restore the electrical coupling between a first interface and a second interface of the USB device as a user requires. A controlling module of the protection circuit outputs a first low-level signal or a second high-level signal according to a user operation, a switching module thereby connects or disconnects the first interface to or from the second interface according to the signal received. A USB device is also disclosed.