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:
May. 13, 2014
Filed:
Mar. 14, 2011
Applicant:
Hai-zhou Wu, Shenzhen, CN;
Inventor:
Hai-Zhou Wu, Shenzhen, CN;
Assignees:
Shenzhen Futaihong Precision Industry Co., Ltd., Shenzhen, CN;
Chi Mei Communication Systems, Inc., New Taipei, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A portable electronic device includes an earphone jack circuit for receiving an earphone plug, a control circuit and a switch circuit. The control circuit sends audio to or receives audio from the earphone plug by the earphone jack. The switch circuit is set between the earphone jack and the control circuit including a first mode and a second mode. The control circuit identifies a type of the earphone plug, and switches the switch circuit to a corresponding mode according to the type of the earphone plug.