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. 22, 2014
Filed:
Sep. 20, 2010
Qiangsheng Charssen GE, Macungie, PA (US);
Elizabeth Ellen Perry, Reading, PA (US);
David Paul Chabinec, West Lawn, PA (US);
Qiangsheng Charssen Ge, Macungie, PA (US);
Elizabeth Ellen Perry, Reading, PA (US);
David Paul Chabinec, West Lawn, PA (US);
Microsemi Semiconductor (U.S.) Inc., Aliso Viejo, CA (US);
Abstract
A device includes a plurality of subscriber line interface circuits and a shared protection device. Each subscriber line interface circuit has a voltage input terminal and first and second interface line terminals. The shared protection device is coupled to the interface line terminals and operable to sense a negative reference voltage representing a most negative one of the voltages present on the voltage input terminals and to provide overvoltage protection responsive to a voltage on at least one of the interface line terminals exceeding the negative reference voltage.