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. 25, 2018
Filed:
May. 08, 2014
Guangdong Oppo Mobile Telecommunications Corp., Ltd., Dongguan, CN;
Jialiang Zhang, Dongguan, CN;
Kewei Wu, Dongguan, CN;
Jie Wu, Dongguan, CN;
Xingwei Yuan, Dongguan, CN;
Feiwu Shuai, Dongguan, CN;
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan, Guangdong, CN;
Abstract
The present disclosure provides a detection circuit and a method for detecting an abnormal interface coupling. The detection circuit includes: a power circuit; a first USB interface, including a first power wire and a first signal wire, in which a power end of the first power wire is coupled to the power circuit; a second USB interface, including a second power wire and a second signal wire, in which the second USB interface is coupled with the first USB interface, such that the second signal wire is coupled with the first signal wire; and a controller, configured to acquire a voltage difference between a voltage of the first power wire and a voltage of the second power wire, and to determine whether the interface coupling is abnormal according to the voltage difference.