Repeater device for displayport side channel and operating method thereof

A repeater device of a DisplayPort comprising:

• a source device processor which transmits or receives an electrical signal of a side channel data of the display port to or from a source device and processes repeater data;
• and
• a sink device processor which transmits or receives an electrical signal of a side channel data of the display port to or from a sink device and processes repeater data,
• wherein the source device processor or the sink device processor comprising a controller processes repeating of the side channel data of the display port using the repeater data which is obtained by transforming the electrical signal to an optical signal,
• wherein the sink device processor comprises a sink controller configured to transmit, to the source device processor, repeater data obtained by converting and processing an electrical signal, received from the sink device, into an optical signal and to transmit, to the sink device, repeater data obtained by converting and processing an optical signal, received from the source device processor, into an electrical signal,
• wherein the sink device processor further comprises:
• a sink signal pattern detector configured to transmit, to the sink controller, a control and management signal for controlling and managing a connection link and a connection device with the sink device;
• a sink reception optical signal pattern detector configured to transmit, to the sink controller, matching information that matches a preset pattern according to an optical signal pattern received from the source device processor;
• and
• a sink transmission optical signal pattern generator configured to generate a preset optical signal pattern based on an optical signal received from the sink controller and to transmit the optical signal to the source device processor, and
• wherein the sink transmission optical signal pattern generator selects a transmission method using one of an unplug pattern, an idle pattern, and a data pattern according to an optical signal clock cycle and generates a transmission pattern of the repeater data.