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

Claim 5:
6. An electronic apparatus comprising:
a communication interface;
a memory storing at least one instruction; 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,

wherein the communication interface comprises:
an input port for receiving an input of a signal output from the external apparatus, and
a detection circuit connected to an input terminal,

wherein the detection circuit comprises:
a resistance, and a transistor of which a first end is connected with the input port, of which a second end is connected to the resistance, and of which a third end is connected with a ground,

wherein the transistor is turned on or turned off based on a level of a signal applied to the first end, and
wherein the processor is further configured to:
monitor a signal output from the external apparatus based on a level of a signal applied to the second end according to the turning-on or turning-off of the transistor.