US 12,231,744 B2
Systems and methods for providing optimized time scales and accurate presentation time stamps
Weiguo Zheng, San Jose, CA (US); Rex Yik Chun Ching, San Ramon, CA (US); Yongjun Jeon, Los Gatos, CA (US); and Chandrika Kasi, San Jose, CA (US)
Assigned to Netflix, Inc., Los Gatos, CA (US)
Filed by Netflix, Inc., Los Gatos, CA (US)
Filed on Feb. 15, 2023, as Appl. No. 18/169,706.
Application 18/169,706 is a continuation of application No. 17/359,468, filed on Jun. 25, 2021, granted, now 11,716,520.
Prior Publication US 2023/0199278 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 21/8547 (2011.01); G11B 27/34 (2006.01); H04N 21/2343 (2011.01)
CPC H04N 21/8547 (2013.01) [G11B 27/34 (2013.01); H04N 21/234381 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
accessing a group of media items, wherein at least two of the media items are encoded at different frame rates, the frame rates each having corresponding frame intervals;
determining a maximum range of frame rates for the media items within the group of media items;
identifying, within the maximum range of frame rates, a unified time scale for the group of media items that provides a constant frame interval for each media item in the group, the identifying including determining a least common multiplier of the encoded frame rates in the group of media items, the least common multiplier comprising a value for which the frame interval for each encoded frame rate is a whole number; and
changing at least one of the media items in the group from a current time scale to the identified unified time scale to provide a constant frame interval for the at least one changed media item.