US 11,722,340 B1
Systems and methods for comparing communication links
Thomas Holtzman Williams, Longmont, CO (US); Luis Alberto Campos, Superior, CO (US); and Lin Cheng, Superior, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by Cable Television Laboratories, Inc., Louisville, CO (US)
Filed on Jan. 9, 2023, as Appl. No. 18/151,542.
Application 18/151,542 is a division of application No. 17/657,712, filed on Apr. 1, 2022, granted, now 11,552,831.
Claims priority of provisional application 63/237,288, filed on Aug. 26, 2021.
Claims priority of provisional application 63/169,313, filed on Apr. 1, 2021.
Int. Cl. H04L 25/03 (2006.01)
CPC H04L 25/03012 (2013.01) [H04L 2025/03541 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for comparing communication links in a communication network, comprising:
obtaining first raw equalizer coefficients in a frequency domain, the first raw equalizer coefficients corresponding to a first communication link;
obtaining second raw equalizer coefficients in the frequency domain, the second raw equalizer coefficients corresponding to a second communication link;
removing time delay from the first raw equalizer coefficients to generate first corrected equalizer coefficients;
removing time delay from the second raw equalizer coefficients to generate second corrected equalizer coefficients; and
comparing the first corrected equalizer coefficients to the second corrected equalizer coefficients to determine a relationship between the first and second communication links.