Skip to Content
Find More Like This
Return to Search

Letter box line blackener for the HDTV/conventional-analog hybrid system

United States Patent

7,079,192
July 18, 2006
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A blackener for letter box lines associated with a HDTV/conventional-analog hybrid television transmission where the blackener counts horizontal sync pulses contained in the HDTV/conventional-analog hybrid television transmission and determines when the HDTV/conventional-analog hybrid television transmission is in letter-box lines: if it is, then the blackener sends substitute black signal to an output; and if it is not, then the blackener sends the HDTV/conventional-analog hybrid television transmission to the output.
Wysocki; Frederick J. (Los Alamos, NM), Nickel; George H. (Los Alamos, NM)
The Regents of the University of California (Los Alamos, NM)
10/ 209,147
July 30, 2002
This invention was made with Government support under Contract No. W-7405-ENG-36 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.