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:
Jun. 03, 2025
Filed:
Dec. 09, 2022
Huawei Technologies Co., Ltd., Shenzhen, CN;
Chao Gu, Nanjing, CN;
Jian Xiang, Nanjing, CN;
Donghui Wang, Nanjing, CN;
Guirong Ji, Shenzhen, CN;
Shiyong Fu, Shenzhen, CN;
Rui Hua, Shenzhen, CN;
HUAWEI TECHNOLGOIES CO., LTD., Shenzhen, CN;
Abstract
A power supply detection apparatus includes a power sourcing equipment (PSE) circuit, a power supply module, and a reverse circuit. The PSE circuit is configured to send a first sounding electrical signal and a second sounding electrical signal to the reverse circuit. The reverse circuit outputs the first sounding electrical signal to a wire-pair group of an Ethernet cable, performs reverse processing on the second sounding electrical signal, and outputs a reverse-processed second sounding electrical signal to the wire-pair group. The PSE circuit is configured to determine, using the first sounding electrical signal, a forward sounding result of a to-be-detected device; and determine a reverse sounding result of the to-be-detected device based on the second sounding electrical signal. The power supply detection apparatus is configured to determine that the to-be-detected device is a non-PD when the forward sounding result or the reverse sounding result is a short circuit.