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. 18, 2013
Filed:
Jun. 30, 2010
Yen-kuang LU, Taoyuan, TW;
Yen-Kuang Lu, Taoyuan, TW;
FIH (Hong Kong) Limited, Kowloon, HK;
Abstract
The present disclosure provides an electronic device and a method for switching an audio input channel of the electronic device. The electronic device includes a headphone interface, a detection circuit, a signal processing unit, and a multiplexer. The headphone interface is operable to connect with an audio connector of a headphone. The detection circuit includes a headphone pin and a button pin. The detection circuit detects a level of a last pole of the audio connector, transfers the level of the last pole into a first level of the headphone pin and a second level of the button pin, and outputs the first level and the second level to the signal processing unit. The signal processing unit transmits commands to the multiplexer in response to the first level and the second level. The multiplexer switches the audio input channel of the electronic device based on the commands.