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. 04, 2006
Filed:
Feb. 12, 2004
Ming-jane Hsieh, Tai Pei, TW;
Chuting Su, Hsinchu, TW;
Yi-shu Chang, Tai Nan, TW;
Ming-lih Lin, Tai Pei, TW;
Ming-Jane Hsieh, Tai Pei, TW;
Chuting Su, Hsinchu, TW;
Yi-Shu Chang, Tai Nan, TW;
Ming-Lih Lin, Tai Pei, TW;
Realtek Semiconductor Corp., Hsin-Chu, TW;
Abstract
A multi-jack detector for detecting states of a plurality of jacks. Each jack comprises a first switch having a first normally closed terminal and a first output terminal. The multi-jack detector comprises a plurality of bias resistors each coupled to one of the first output terminals, respectively; a control unit for determining the states of the plurality of jacks; wherein the first normally closed terminals are commonly coupled to a first node and the control unit determines the states of the plurality of jacks according to a voltage at the first node. Because the voltage at the first node is different for each state of the jacks, the detector can detects the states of the jacks using a single I/O pin.