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. 27, 2004
Filed:
Oct. 12, 1999
Steven E. Blashewski, Duluth, GA (US);
John W. Brickell, Lawrenceville, GA (US);
Scientific-Atlanta, Inc., Lawrenceville, GA (US);
Abstract
A communication system ( ) processes forward signals generated by headend equipment ( ) and reverse signals generated by subscriber equipment ( ). A communication medium ( ), such as fiber optic cable or coaxial cable, connects the headend equipment ( ) and the subscriber equipment ( ), and amplifiers ( ) are positioned at various locations along the medium ( ) to amplify the forward and reverse signals. The amplifiers ( ) include a dual forward/reverse test circuit (FIG. 6) having a forward test point ( ) coupled to the forward signal, a reverse test point ( ) coupled to the reverse signal, and a single directional coupler ( ) connected to the forward test point ( ), for providing the forward signal thereto, and to the reverse test point ( ), for providing the reverse signal thereto.