US 12,451,099 B2
Dynamic refresh rates in multi-display systems
Sangeeta Ghangam Manepalli, Chandler, AZ (US); Philippe Lecluse, Braine l'Alleud (BE); Bart Plackle, Molenstede (BE); and Kurt Herremans, Hasselt (BE)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Nov. 24, 2021, as Appl. No. 17/535,433.
Prior Publication US 2022/0084481 A1, Mar. 17, 2022
Int. Cl. G09G 5/00 (2006.01); G09G 3/36 (2006.01); G09G 5/12 (2006.01); G09G 5/18 (2006.01)
CPC G09G 5/001 (2013.01) [G09G 3/3618 (2013.01); G09G 5/12 (2013.01); G09G 5/18 (2013.01); G09G 2310/08 (2013.01); G09G 2360/18 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
sending content information to a plurality of display computing systems, the content information representing content to be displayed at a plurality of displays controlled by the plurality of display computing systems;
sending a display refresh timestamp request to a first display computing system of the plurality of display computing systems;
receiving a first display refresh timestamp from the first display computing system;
wherein a drift threshold value is about equal to a display refresh time interval based on a frame rate at which the content is to be displayed,
determining that an absolute difference between a reference display refresh timestamp and the first display refresh timestamp is greater than the drift threshold value;
determining clock adjustment information based on the first display refresh timestamp and the reference display refresh timestamp; and
sending the clock adjustment information to the first display computing system.