US 12,339,532 B2
Staggered driving electrical control of a plurality of electrically controllable privacy glazing structures
Nicholas Schleder, Saint Paul, MN (US); Peter Whaley, Minneapolis, MN (US); and Eric Berner, Ramsey, MN (US)
Assigned to Cardinal IG Company, Eden Prairie, MN (US)
Filed by Cardinal IG Company, Eden Prairie, MN (US)
Filed on May 17, 2023, as Appl. No. 18/318,781.
Application 17/522,871 is a division of application No. 16/861,378, filed on Apr. 29, 2020, granted, now 11,175,523, issued on Nov. 16, 2021.
Application 18/318,781 is a continuation of application No. 17/522,871, filed on Nov. 9, 2021, granted, now 11,681,170.
Claims priority of provisional application 62/840,032, filed on Apr. 29, 2019.
Prior Publication US 2023/0350241 A1, Nov. 2, 2023
Int. Cl. G02F 1/133 (2006.01); G09G 3/36 (2006.01)
CPC G02F 1/13306 (2013.01) [G09G 3/3696 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrical driver for electrically controllable optical privacy glazing structures, the driver comprising a first drive channel and a second drive channel and being configured to:
establish a first electrical drive signal for a first electrically controllable optical privacy glazing structure, the first electrical drive signal including one or more drive parameters;
establish a second electrical drive signal for a second electrically controllable optical privacy glazing structure, the second electrical drive signal including one or more drive parameters;
determine an amount of stagger between the first electrical drive signal and the second electrical drive signal;
apply the first electrical drive signal to the first electrically controllable optical privacy glazing structure via the first drive channel;
apply the second electrical drive signal to the second electrically controllable optical privacy glazing structure via the second drive channel; and
stagger the application of the first electrical drive signal and the second electrical drive signal based on the determined amount of stagger between the first electrical drive signal and the second electrical drive signal.