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

Claim 0:
1. 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 first signal comprises:
at least one of a hot plug detect (HPD) signal, a serial data line (SCL) signal in a display data channel (DDC) signal, or a serial clock line (SDA) signal of the DDC,

wherein the second signal comprises:
at least one other of the HPD signal, the SCL signal, or the SDA signal, and

wherein a signal output from the external apparatus comprises:
at least one of a clock signal or a display data channel (DDC) signal.