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. 28, 2002
Filed:
Oct. 08, 1999
Applicant:
Inventors:
Glenn Yancey, Burleson, TX (US);
Mark Szewczul, Bedford, TX (US);
Assignee:
Marconi Communications, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 3/08 ;
U.S. Cl.
CPC ...
H01H 3/08 ;
Abstract
A communications system including an over-voltage and over-current surge protection circuit is provided that passes high frequency signals between transmitting and receiving devices with low attenuation. The protection circuit includes a current limiter and over-voltage protection device. The over-voltage protection device includes a diode device comprising a set of anti-parallel diodes, which is connected in series with a shunt device. The over-voltage protection device is coupled between a signal transmission line and ground. The current limiter is coupled between the transmitting and receiving devices.