US 11,658,840 B2
State retention load control system
Ankit Bhutani, Aston, PA (US); Timothy Mann, Quakertown, PA (US); and David T. Saveri, III, Nazareth, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Nov. 8, 2021, as Appl. No. 17/521,015.
Application 17/521,015 is a continuation of application No. 16/945,462, filed on Jul. 31, 2020, granted, now 11,196,581.
Application 16/945,462 is a continuation of application No. 15/641,933, filed on Jul. 5, 2017, granted, now 10,772,180, issued on Sep. 8, 2020.
Claims priority of provisional application 62/358,435, filed on Jul. 5, 2016.
Prior Publication US 2022/0060349 A1, Feb. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/28 (2006.01); H05B 47/19 (2020.01); H05B 47/11 (2020.01); H05B 47/14 (2020.01); H05B 39/04 (2006.01); H05B 47/115 (2020.01); E06B 9/322 (2006.01); E06B 9/68 (2006.01); H04L 67/10 (2022.01)
CPC H04L 12/2816 (2013.01) [H05B 39/041 (2013.01); H05B 47/11 (2020.01); H05B 47/14 (2020.01); H05B 47/19 (2020.01); E06B 9/322 (2013.01); E06B 9/68 (2013.01); E06B 2009/6809 (2013.01); H04L 67/10 (2013.01); H05B 47/115 (2020.01)] 21 Claims
OG exemplary drawing
 
1. A control device comprising:
a communication circuit configured to transmit and receive messages to and from other devices; and
a control circuit configured to:
determine that the control device has experienced a loss of power;
transmit, via the communication circuit, a query message to an external device;
determine, based on contents of a response message received from the external device in response to the query message, that the external device has experienced a loss of power;
determine, based on the loss of power at the control device and the loss of power at the external device, that the control device experienced a system power removal event; and
in response to the determination that the control device experienced the system power removal event, adjust a power state of the control device to a prior power state, wherein the prior power state of the control device is a power state of the control device prior to the control device experiencing the system power removal event.