US Patent No. 10,602,582

OPERATION METHOD OF LIGHTING SYSTEM


Patent No. 10,602,582
Issue Date March 24, 2020
Title Operation Method Of Lighting System
Inventorship Kuo-Tsun Lin, Taichung (TW)

Claim of US Patent No. 10,602,582

1. An operation method of a lighting system that includes a controlling device for receiving an electrical signal from mains electricity, and a lighting device connected to the controlling device and including a plurality of light-emitting diodes (LEDs), the operation method comprising steps of:outputting, by the controlling device operating in a normal mode, the electrical signal as a control signal to the lighting device;
entering, by the controlling device operating in the normal mode, the transition mode upon receiving a tuning signal from an input device;
generating, by the controlling device operating in the transition mode, a modified signal by modifying the electrical signal according to the tuning signal;
outputting, by the controlling device operating in the transition mode, the modified signal as the control signal to the lighting device;
entering, by the controlling device operating in the transition mode, the normal mode once a predetermined period of time has elapsed since the last time the controlling device receives the tuning signal; and
setting, by the lighting device, a color temperature of light emitted by the LEDs according to waveform of the control signal.