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:
Oct. 13, 2015
Filed:
Mar. 14, 2013
Applicant:
Huawei Device Co.,ltd., Shenzhen, CN;
Inventors:
Wenchao Xiao, Wuhan, CN;
Jun Yang, Wuhan, CN;
Assignee:
HUAWEI DEVICE CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04M 1/02 (2006.01); H04M 1/60 (2006.01);
U.S. Cl.
CPC ...
H04R 3/00 (2013.01); H04M 1/0274 (2013.01); H04M 1/6058 (2013.01);
Abstract
A method and an electronic device for determining headset line sequence are disclosed in this application, where a third pin and a fourth pin on a headset plug are connected to a direct-current power supply to form a power supply branch, and a bias resistor is connected onto the power supply branch in series. This application obtains a second voltage between the third pin and the fourth pin, compares the second voltage with a preset first threshold, and according to a comparison result, determines a signal type of a signal transmitted by the third pin and a signal type of a signal transmitted by the fourth pin.