US 11,728,917 B2
Robust distribution of IP timing signals
Craig L. Beardsley, Chicago, IL (US); Jerome G. Liscano, New York, NY (US); Michael J. Strein, Bohemia, NY (US); Carl A. Brown, Deer Park, NY (US); Nishith Shah, Monroe, NJ (US); and Benjamin H. Kepler, Palisades, NY (US)
Assigned to Disney Enterprises, Inc., Burbank, CA (US)
Filed by Disney Enterprises, Inc., Burbank, CA (US)
Filed on Nov. 9, 2021, as Appl. No. 17/522,309.
Application 17/522,309 is a division of application No. 16/518,780, filed on Jul. 22, 2019, granted, now 11,239,934.
Prior Publication US 2022/0069932 A1, Mar. 3, 2022
Int. Cl. H04J 3/06 (2006.01); H04Q 11/00 (2006.01); H04N 21/643 (2011.01); H04N 21/61 (2011.01); H04N 21/43 (2011.01)
CPC H04J 3/0667 (2013.01) [H04J 3/0673 (2013.01); H04N 21/4305 (2013.01); H04N 21/6125 (2013.01); H04N 21/64322 (2013.01); H04Q 11/0005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for synchronizing boundary clocks in a plurality of PTP-enabled network devices, comprising:
receiving, at the plurality of PTP-enabled network devices, an announcement from a master clock device, wherein the announcement is received via a transparent clock switch, wherein the master clock device and the transparent clock switch form an out-of-band PTP distribution network;
synchronizing the boundary clocks to a master clock generated by the master clock device based on a timestamp of the master clock and a transit delay corresponding to the transparent clock switch;
transmitting timestamps of the boundary clocks to media nodes connected to the plurality of PTP-enabled network devices; and
transmitting non-PTP data signals from the plurality of PTP-enabled network devices to a plurality of non-PTP enabled network devices.