Patent ID: 7983307

Claim:
A communication apparatus comprising: a multiplexed data receiving unit that receives multiplexed data including at least video data, audio data, and text data including transcribed words based on the audio data; an extracting unit that extracts the video data, the audio data, and the text data from the multiplexed data received by the multiplexed data receiving unit; a telephone unit that transmits/receives telephone audio data; a display unit that outputs the extracted video data; an audio output unit that outputs at least one of the extracted audio data and the received telephone audio data; and a switching control unit that switches an input of the audio output unit between the extracted audio data and the received telephone audio data, wherein when the communication apparatus detects an occurrence of one of a telephone call receive event and a telephone call send event while the multiplexed data is being received by the multiplexed data receiving unit, the multiplexed data receiving unit continues to receive the multiplexed data, the telephone unit starts transmitting/receiving the telephone audio data, the switching control unit switches the received telephone audio data to the audio output unit, and a superimposing unit superimposes a caption display including the text data on the display output unit while the display output unit outputs the extracted video data, wherein when the communication apparatus detects an occurrence of a telephone call end event while the telephone audio data is being transmitted/received by the telephone unit, the multiplexed data receiving unit continues to receive the multiplexed data, and the display output unit outputs the video data and does not output the text data.