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. 30, 2006
Filed:
Dec. 09, 2002
Wen-lung Shieh, Taipei, TW;
Chih-hung Tseng, Taipei, TW;
Wen-Lung Shieh, Taipei, TW;
Chih-Hung Tseng, Taipei, TW;
C-Media Electronics, Inc., Taipei, TW;
Abstract
The scheme for detecting the plug-in status by using single bit generated by a network with serial resistors, comprising a plurality of jacks having a spring switch, wherein the number of the plurality of jacks can be selected depending on the demand and a plurality of resistors followed the spring switch and connected in serial. Output voltage-generating resistor is coupled to the plurality of resistors in parallel to obtain the output voltage, thereby determining the plug-in status. Wherein the plurality of jacks and the plurality of resistors construct a multi-jack network, a first terminal of the multi-jack network refers to a common node between a first connecting terminals of the spring switch of the plurality of jacks and a first resistor of the plurality of resistors, the first terminal being coupled to a first reference voltage, a second terminal of the multi-Jack network refers to a common node between the second connecting terminals of the last jack and the last resistor. Wherein the output voltage-generating resistor is coupled between the second terminal of the multi-jack network and a second reference voltage.