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:
Nov. 22, 2022
Filed:
Mar. 21, 2019
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Chao Zan, Dongguan, CN;
Qiming Tang, Shenzhen, CN;
Guangrong Zhou, Dongguan, CN;
Jun Yan, Dongguan, CN;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H04B 3/00 (2006.01); H02H 3/20 (2006.01);
U.S. Cl.
CPC ...
H02H 9/046 (2013.01); H02H 3/202 (2013.01); H02H 9/04 (2013.01); H02H 9/044 (2013.01); H04B 3/00 (2013.01);
Abstract
An interface protection circuit and a device interface are disclosed. The interface protection circuit includes a capacitor and a transient voltage suppressor (TVS) transistor. A first end of the capacitor is connected to a connection port, a second end of the capacitor is connected to a first end of the TVS transistor and an interface chip, and a second end of the TVS transistor is grounded.