Lighting device and controlling method thereof

Patent metadata

Field	Value
Publication number	US-11523487-B2
Application number	US-202117322840-A
Country	US
Kind code	B2
Filing date	May 17, 2021
Priority date	Jul 31, 2020
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

Disclosed is a lighting device. The lighting device includes a light emitting element, a power unit to supply power to the light emitting element, a single communication port and a processor to, when a user input signal to adjust brightness of the light emitting element is received from an external communication device connected by the single communication port, generate a control signal corresponding to the received user input signal, control the power unit to adjust brightness of the light emitting element based on the control signal, and the signal communication port may be connected to the processor via a single communication line.

First claim

What is claimed is:

1. A lighting device comprising:
a light emitting element;
a power unit to supply power to the light emitting element;
a single communication port; and
a processor to:
when a user input signal to adjust brightness of the light emitting element is received from a replaceable external communication device physically connected by the single communication port, generate a control signal corresponding to the received user input signal,
control the power unit to adjust brightness of the light emitting element based on the control signal,
wherein the signal communication port is connected to the processor via a single communication line, and
wherein the received user input signal is a signal obtained by processing a received user input based on a pre-decided communication protocol recognizable by the processor by the external communication device.

2. The lighting device of claim 1 , further comprising:
an auxiliary power unit to supply auxiliary power; and
a single power port,
wherein the processor controls the auxiliary power unit to supply auxiliary power to the external communication device connected by the single power port, and
wherein the single power port is connected to the auxiliary power unit via a single power line.

3. The lighting device of claim 2 , further comprising:
an output terminal,
wherein the output terminal comprises the single communication port and the single power port, and
wherein the processor communicates with the external communication device through the output terminal and supplies power to the external communication device.

4. The lighting device of claim 3 , wherein the output terminal is a universal serial bus (USB) port.

5. The lighting device of claim 1 ,
wherein the processor identifies whether the received user input signal is processed based on the pre-decided protocol, and
when the received user input signal is not processed based on the pre-decided protocol, processes the received user input signal based on the pre-decided protocol.

6. The lighting device of claim 5 , wherein the processor, when the received user input signal is not processed based on the pre-decided protocol, generates a conversion request signal to convert the received user input signal,
transmits the generated conversion request signal to the external communication device, and
receives a converted user input signal from the external communication device.

7. The lighting device of claim 1 , wherein the processor receives the user input signal through the single communication line,
when brightness of the light emitting element is adjusted based on the user input signal, generates an adjustment result signal, and
transmits the adjustment result signal to the external communication device through the single communication line.

8. The lighting device of claim 7 , wherein the processor receives communication method information corresponding to the user input signal from the external communication device,
identifies the communication protocol corresponding to the communication method information,
converts the adjustment result signal based on the identified communication protocol, and
transmits the converted adjustment result signal to the external communication device through the single communication line.

9. The lighting device of claim 1 , wherein the light emitting element comprises:
a first light emitting element having a first color temperature; and
a second light emitting element having a second color temperature,
wherein the processor identifies a total supply current of the lighting device,
identifies ratio information between brightness of the first light emitting element and brightness of the second light emitting element based on the user input, and
supplies total supply current to the first light emitting element and the second light emitting element based on the identified ratio information.

10. The lighting device of claim 9 , further comprising:
a first switching element; and
a second switching element;
wherein the processor identifies a first current supplied to the first light emitting element and a second current supplied to the second light emitting element based on the total supply current and the ratio information,
supplies the first current to the first light emitting element by controlling the first switching element, and
supplies the second current to the second light emitting element by controlling the second switching element.

Assignees

• Solum Co Ltd

Inventors

• Kim Jurae
• Kim Euiseok
• Lee Semi

Classifications

• H05B47/185 Primary

  via power line carrier transmission · CPC title

• F21V23/045

  the sensor receiving a signal from a remote controller · CPC title

• H05B45/30 Primary

  Driver circuits · CPC title

• H05B45/20 Primary

  Controlling the colour of the light · CPC title

• H05B45/10

  Controlling the intensity of the light · CPC title