Patent ID: 11942019
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  A  H | IPC A  G

Claim 6:
7. An electronic apparatus comprising:
a communication interface;
a memory storing at least one instruction;
a display; and
a processor which is connected with the memory and the communication interface and controls the electronic apparatus,
wherein, when executing the at least one instruction, the processor is configured to:
based on an event for reading extended display identification data (EDID) stored in the memory at an external apparatus connected through the communication interface occurring, change the EDID information from first EDID information stored in the memory into second EDID information, and toggle a first signal related to the communication interface,
after the first signal is toggled, monitor a signal output from the external apparatus and identify whether the external apparatus failed to read EDID information, and
based on identifying that the external apparatus failed to read the EDID information, toggle a second signal related to the communication interface, and

wherein the processor is further configured to:
based on the event according to an input of a user instruction for changing a screen ratio in a preset mode occurring, sequentially toggle the first signal and the second signal, and
control the display to display a guide user interface (UI) guiding that an operation for changing a screen ratio is being performed while a calibration work according to the sequential toggling of the first signal and the second signal being performed.