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:
Aug. 10, 2010
Filed:
Oct. 31, 2007
Forrest M. Farhan, Duluth, GA (US);
Alberto P. Gaibazzi, Duluth, GA (US);
Forrest M. Farhan, Duluth, GA (US);
Alberto P. Gaibazzi, Duluth, GA (US);
Scientific Atlanta, Inc., Lawrenceville, GA (US);
Abstract
A cable television system () having forward and reverse paths includes, in the reverse path, a digital optical transmitter () for receiving an RF signal, converting it to a digital signal, and adding a digital pilot tone thereto. A laser is driven in accordance with the summed digital signal to generate a digital optical signal representative of the pilot tone and the RF signal. The cable television system () also includes an optical receiver () for receiving the digital optical signal and recovering therefrom the RF signal and the pilot tone. The optical transmitter () and receiver () are coupled by fiber optic communication media ().