US 12,244,408 B2
FSYNC mismatch tracking
Vivek Sarda, Austin, TX (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Dec. 7, 2023, as Appl. No. 18/532,998.
Application 18/532,998 is a continuation of application No. 17/986,704, filed on Nov. 14, 2022, granted, now 11,876,607.
Application 17/986,704 is a continuation of application No. 17/134,818, filed on Dec. 28, 2020, granted, now 11,502,764, issued on Nov. 15, 2022.
Prior Publication US 2024/0223294 A1, Jul. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04J 3/06 (2006.01)
CPC H04J 3/065 (2013.01) [H04J 3/0605 (2013.01); H04J 3/0617 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A network communications system comprising:
a master line card configured to generate a plurality of master line card time stamps for a respective plurality of master line card frame sync signals generated on a master line card;
a slave line card configured to generate a plurality of slave line card time stamps for a respective plurality of slave line card frame sync signals generated on the slave line card;
a processor configured to compare at least some of the plurality of slave line card time stamps to at least some of the plurality of master line card time stamps, to adjust at least one timing aspect of the master line card based on the comparison, to determine a temperature coefficient for the master line card, and to compensate for temperature change based on the temperature coefficient and a current temperature reading.