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. 13, 2002
Filed:
Sep. 22, 1999
Applicant:
Inventor:
Forrest M. Farhan, Alpharetta, GA (US);
Assignee:
Scientific-Atlanta, Inc., Lawrenceville, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/000 ; H04B 1/012 ; H04B 1/020 ; H04J 1/402 ; H04J 1/408 ;
U.S. Cl.
CPC ...
H04B 1/000 ; H04B 1/012 ; H04B 1/020 ; H04J 1/402 ; H04J 1/408 ;
Abstract
A cable television system ( ) includes a transmitter ( ) for generating a digital optical signal and a receiver ( ) for receiving such digital optical signal and converting it to an analog signal. The receiver ( ) includes a digital filter ( ) disposed between a deserializer ( ) and a digital-to-analog converter ( ), which digital filter conditions the digital electrical signal received from the deserializer ( ). 1o The digital filter ( ) is employed as a digital noise mitigation block so as to improve the quality of the signals in the reverse path, returning to the cable television system ( ) headend ( ).