Remote controller setting method using EDID

1. A remote controller setting method using extended display identification data (EDID) comprising:

(S1) transmitting, by a TV, EDID information to a set-top box, wherein the set-top box is connected to the TV through a high definition multimedia interface (HDMI) cable, wherein the method for the TV comprises:

an EDID storage memory for storing the EDID of the TV,

an HDMI cable connection monitoring unit for monitoring whether an HDMI cable is disconnected from the TV, and

a EDID request processing unit for retrieving the EDID stored in the EDID storage memory to transmit the retrieved EDID to the set-top box through a TV communication interface, when receiving an EDID information request through the TV communication interface from the set-top box or when it is detected that the HDMI cable is disconnected from the TV through the HDMI cable connection monitoring unit; and

(S2) analyzing, by the set-top box, the EDID information to grasp a manufacturer's name of the TV and transmitting, to a remote controller, the manufacturer's name of the TV to allow the remote controller to remotely control the TV,

wherein, in (S2) the analyzing of the EDID information, when the set-top box transmits the manufacturer's name of the TV, since there is IR code information according to each manufacturer of the TV in the remote controller, the remote controller applies, to itself, IR code information corresponding to the manufacturer of the TV transmitted from the set-top box to remotely control the TV;

wherein the method for the set top-box comprises:

a pairing monitoring unit for monitoring whether to be paired with the remote controller,

a EDID request unit for requesting the EDID from the TV, when it is determined to be paired with the remote controller through the pairing monitoring unit or when a Bluetooth connection event or a key data transmission event is input from the remote controller through Bluetooth communication,

a TV communication interface for delivering the EDID having been transmitted from the TV to the set-top box and transmitting, to the TV, an EDID request signal having been transmitted from the set-top box,

a EDID storage unit for storing EDID information having been transmitted from the TV communication interface,

a TV manufacturer searching unit for searching the EDID stored in the EDID storage unit for a manufacturer of the TV, and

a first Bluetooth communication unit for transmitting the manufacturer of the TV found by the TV manufacturer searching unit to the remote controller through Bluetooth communication; and

wherein the method for the remote controller comprises:

a TV manufacturer request unit for requesting pairing from the set-top box in order to receive the manufacturer of the TV from the set-top box or transmitting, to the set-top box, a Bluetooth connection event signal or a key data transmission event signal through Bluetooth communication,

a second Bluetooth communication unit for receiving the manufacturer of the TV from the set-top box through the Bluetooth communication with the set-top box, requesting pairing from the set-top box, or transmitting, to the set-top box, the Bluetooth connection event signal or the key data transmission event signal,

a TV manufacturer and IR code information storage unit for storing IR code information according to each manufacturer of the TV

a buffer for storing the manufacturer of the TV delivered from the set-top box through the second Bluetooth communication unit,

an IR code information searching unit for comparing the manufacturer of the TV, which is stored in the buffer, with one stored in the TV manufacturer and IR code information storage unit to search for the IR code information corresponding to the manufacturer of the TV, which is stored in the buffer, and

an IR code retrieval and application unit for applying, to the remote controller, the IR code information found by the IR code information searching unit to allow the remote controller to remotely control the TV connected to the set-top box.

2. The method according to claim 1 , wherein the EDID information is a video electronics standards association (VESA) standard data format that contains basic information for a monitor and includes capability of the monitor, information about the manufacturer, a maximum image size, color characteristics, factory preset timing, frequency range limitation, and character sequence of the monitor's name and a serial number.