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. 01, 2014
Filed:
Jun. 06, 2011
Applicants:
Cédric Appere, Saint Cyr sur Loire, FR;
André Bremond, Veretz, FR;
Christian Ballon, Tours, FR;
Inventors:
Assignee:
STMicroelectronics (Tours) SAS, Tours, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H01C 7/12 (2006.01); H02H 1/00 (2006.01); H01H 1/04 (2006.01); H02H 3/22 (2006.01); H02H 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A structure for protecting a circuit connected to first and second rails of a telephone connection against overvoltages, including: first and second diodes in anti-series between the first and second rails; a first capacitor in parallel with a first resistor between a first node common to the first and second diodes and a low voltage reference node; and a protection element capable of removing fast overvoltages between any of the rails and the low reference voltage node when these overvoltages exceed a first threshold associated with the voltage of the first node.