Abstract: The invention is directed to an improved scrambler capable of self-calibrating output signals. In one embodiment, the scrambler provides an encoded signal along separate signal pulses. A portion of one signal is made to correspond to a portion of another signal to thereby self-calibrate the signals. Also, portions of the incoming video signal are forced to correspond with internally generated voltage level signals.
Type:
Grant
Filed:
October 7, 1991
Date of Patent:
January 5, 1993
Assignee:
Scientific-Atlanta, Inc
Inventors:
William T. Murphy, James Farmer, Lamar West, Jr.