Patent ID: 8055363

Claim:
A multimedia output apparatus comprising: an audio port to receive a first audio signal; a connection port to respectively receive each of a first video signal without an accompanying audio signal, and both a second video signal and a second audio signal; a sensor to receive data from each of the first video signal and the second video signal, respectively, via a display data channel (DDC) line and to read bits of the data to sense whether the connection port receives only the first video signal or both the second video signal and the second audio signal; a switch to select one of the second audio signal received through the connection port and the first audio signal received through the audio port to be output; and a controller to control the switch to output the first audio signal received through the audio port when the sensor senses that only the first video signal is received through the connection port, and to output the second audio signal received through the connection port when the sensor senses that both the second video signal and the second audio signal are received through the connection port.