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:
Apr. 10, 2012
Filed:
Nov. 24, 2008
Kyu Won Choi, Suwon-si, KR;
Jong Nam Jun, Seoul, KR;
Nam Hyung Kim, Suwon-si, KR;
MI Jin Kim, Incheon Metropolitan, KR;
Kyu Won Choi, Suwon-si, KR;
Jong Nam Jun, Seoul, KR;
Nam Hyung Kim, Suwon-si, KR;
Mi Jin Kim, Incheon Metropolitan, KR;
Samsung Electronics Co., Ltd, Suwon-si, KR;
Abstract
A compatible circuit and method for 4- and 5-pole earphones and a portable device are disclosed. The compatible circuit and method alter the path of audio signals, using switches, according to control signals, so that the 4-pole earphone can be used in a portable device designed primarily for a 5-pole earphone. The apparatus and method include determining the type of earphone, altering the audio signal path according to the type of earphone, and transmitting the audio signal to the earphone.