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:
Jul. 24, 2007
Filed:
Jul. 30, 2003
Applicants:
Yu-chun Peng, Taipei, TW;
Ching-sung Ho, Taoyuan County, TW;
Su-hong Tseng, Taipei, TW;
Hsi-cheng Yeh, Taoyuan, TW;
Inventors:
Yu-Chun Peng, Taipei, TW;
Ching-Sung Ho, Taoyuan County, TW;
Su-Hong Tseng, Taipei, TW;
Hsi-Cheng Yeh, Taoyuan, TW;
Assignee:
High Tech Computer Corp., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plug detection circuit. The detected circuit is disposed in an electronics device with an earphone jack, accepting plugs with a plurality of conductive rings. The detection circuit has a plurality of pins, wherein a first pin detects, and outputs a first logic potential, and a second pin detects the potentials at the conductive rings and outputs a second logic potential. The detection circuit determines the type of earphone connected to the earphone jack.