Display apparatus and control method thereof

Abstract

A display apparatus includes: a main information receiver which receives main information; a video processor which processes a main video corresponding to the received main information; a display unit which displays the main video thereon; a sub information communicator which receives sub information comprising at least one of a video, an audio and text through Internet Protocol; and a controller which controls the video processor to process a sub video corresponding to the sub information received through the sub information communicator and display the sub video on the display unit.

What is claimed is: 
     
       1. A display apparatus comprising:
 a main information receiver which receives main information; 
 a sub information communicator which receives sub information comprising at least one of video, audio and text through Internet Protocol; 
 a video processor which processes a main video received by the main information receiver and a sub video that is received by the sub information communicator; 
 a display unit which displays the main video and the sub video processed by the video processor; 
 an audio processor which processes a main audio received by the main information receiver and a sub audio that is received by the sub information communicator; 
 an audio output unit comprising a speaker and which outputs the main audio and the sub audio processed by the audio processor, through the speaker; and 
 a memory which stores a computer program comprising instructions; 
 a processor which executes the instruction to implement a controller which:
 determines whether sub information that is received through Internet Protocol is displayable on the display unit, based on whether power of the display unit is turned on and whether a Picture In Picture (PIP) function of the display unit is activated, the sub information comprising at least one of the sub video, the sub audio, and text; and  
 controls the video processor and the display unit to display the sub video as a Picture In Picture (PIP) PIP sub video of the main video with the main video, and controls the audio processor and the audio output unit to overlap the sub audio and the main audio and output the sub audio with the main audio simultaneously, in response to the determination that the received sub information is displayable on the display unit; and 
 
 a telephone which receives and outputs an audio, 
 wherein the controller further:
 controls to transmit the received sub information to the telephone in response to the determination that the received sub information is not displayable on the display unit; and 
 controls to transmit the audio received by the telephone, through the Internet Protocol. 
 
 
     
     
       2. The display apparatus according to  claim 1 , wherein the sub information communicator receives the sub information is received via Voice Over Internet Protocol (VOIP). 
     
     
       3. The display apparatus according to  claim 2 , further comprising a sub information input unit through which the sub information is input,
 wherein the controller further: 
 controls the sub information communicator to transmit the sub information input by through the sub information input unit, through the VOIP, and;  
 controls the video processor to process a sub video corresponding to the input sub information; and 
 controls the display unit to display the sub video on the display unit. 
 
 
     
     
       4. The display apparatus according to  claim 3 , wherein the sub information input unit comprises at least one of a camera, a microphone and a keyboard. 
     
     
       5. The display apparatus according to  claim 1 , wherein the controller controls the video processor to display the main video with the sub video. 
     
     
       6. The display apparatus according to  claim 1 , wherein the audio processor processes a the main audio corresponding to the main information, and
 the controller controls the audio processor to output the main audio through the audio output unit. 
 
     
     
       7. The display apparatus according to  claim 6 , wherein the controller controls the audio processor to output the main audio with the sub audio through the audio output unit. 
     
     
       8. The display apparatus according to  claim 7 , wherein the controller further controls the audio processor to adjust a volume level of at least one of the main audio and the sub audio. 
     
     
       9. The display apparatus according to  claim 6 , wherein the audio output unit comprises a plurality of audio output units, and the controller controls the main audio to be output through at least one of the plurality of audio output units and controls the sub audio to be output through at least another one of the plurality of audio output units. 
     
     
       10. The display apparatus according to  claim 1 , further comprising a telephone which inputs and outputs an audio,
 wherein the controller transmits sub information received by the sub information communicator to the telephone and controls the sub information communicator to transmit the audio input by the telephone through the internet protocol.   
     
     
       11. The display apparatus according to  claim 10 , wherein the controller transmits the sub information to the telephone if the sub information received by the sub information communicator is not displayable on the display unit. 
     
     
       12. A control method of a display apparatus, the control method comprising:
 displaying a main video corresponding to main information which is received; 
 receiving sub information having comprising at least one of a video, an audio and text, through Internet Protocol; and 
 determining whether the received sub information is displayable on the display apparatus, based on whether power of the display apparatus is turned on and whether a Picture In Picture (PIP) function of the display apparatus is activated;  
 displaying a sub video corresponding to the sub information which is received, with the main video corresponding to the main information in response to the determination that the received sub information is displayable on the display apparatus, 
 wherein the displaying the main video comprises outputting a main audio corresponding to the main information, and 
 wherein the displaying the sub video comprises outputting a sub audio corresponding to sub information received through the Internet Protocol by overlapping the sub audio and the main audio, through a speaker; and 
 transmitting the received sub information to a telephone in response to the determination that the received sub information is not displayable on the display apparatus. 
 
     
     
       13. The control method according to  claim 12 , wherein the receiving the sub information comprises receiving the sub information via Voice Over Internet Protocol (VOIP). 
     
     
       14. The control method according to  claim 12 , wherein the displaying the main video comprises displaying the main video with the sub video. 
     
     
       15. The control method according to  claim 12 , wherein the displaying the sub video comprises further comprising: 
 receiving the sub information through a sub information input unit; 
 transmitting the input sub information received through the sub information input unit, through the Internet Protocol; and 
 displaying a the sub video corresponding to the input sub information received through the sub information input unit. 
 
     
     
       16. The control method according to  claim 15 , wherein the receiving the sub information through the sub information input unit comprises receiving the sub information through at least one of a camera, a microphone and a keyboard. 
     
     
       17. The control method according to  claim 12 , wherein the outputting the sub audio comprises outputting the sub audio with the main audio. 
     
     
       18. The control method according to  claim 17 , wherein the outputting the sub audio comprises further comprising adjusting a volume level of at least one of the main audio and the sub audio. 
     
     
       19. The control method according to  claim 12 , wherein the receiving the sub information comprises transmitting the sub information to a telephone if the sub information received through the Internet Protocol is not displayable on the display unit. 
     
     
       20. A display apparatus comprising:
 a display configured to display a video;   a speaker configured to output an audio;   a receiver configured to receive a broadcasting signal;   a signal processor configured to process a broadcasting video and a broadcasting audio of the received broadcasting signal;   a memory configured to store a computer program comprising instructions; and   a processor configured to execute the instructions to implement a controller configured to:
 control the display to display the processed broadcasting video; 
 control the speaker to output the processed broadcasting audio; 
 determine whether a video call signal that is received through an Internet protocol is displayable on the display, based on whether power of the display is turned on and whether a picture in picture (PIP) function of the display is activated, in response to the reception of the video call signal while the processed broadcasting video is displayed on the display, the video call signal comprising a call video and a call audio; 
 control the signal processor to process the call video, control the display to display the processed call video with the processed broadcasting video, control the signal processor to process the call audio by overlapping the call audio and the processed broadcasting audio, and control the speaker to output the processed call audio with the processed broadcasting audio, in response to the determination that the received video call signal is displayable on the display; 
 control to transmit the call audio of the received video call signal to a telephone in response to the determination that the received video call signal is not displayable on the display; and 
 control to transmit an audio that is input through the telephone, through the Internet protocol.  
   
     
     
       21. The display apparatus according to claim 20, wherein the controller is further configured to control the speaker to output the processed broadcasting audio and the processed call audio simultaneously.  
     
     
       22. The display apparatus according to claim 21, wherein the controller is further configured to adjust a volume level of either one or both of the output broadcasting audio and the output call audio.  
     
     
       23. The display apparatus according to claim 20, wherein the controller is further configured to control the signal processor to:
 process the call video to be displayed on one of a main screen and a sub screen of the display, based on the PIP function of the display; and   process the broadcasting video to be displayed on another one of the main screen and the sub screen in response to the call video being displayed.    
     
     
       24. The display apparatus according to claim 20, further comprising a user input unit,
 wherein the controller is further configured to:
 control to transmit information that is input through the user input unit, via a voice over Internet protocol; and 
 control the signal processor to process a video corresponding to the input information to be displayed on the display.  
   
     
     
       25. The display apparatus according to claim 20, wherein the display apparatus comprises a television.  
     
     
       26. A method of controlling a display apparatus comprising a display and a speaker, the method comprising:
 receiving a broadcasting signal;   displaying a broadcasting video of the broadcasting signal on the display;   outputting a broadcasting audio of the broadcasting signal through the speaker;   receiving a video call signal comprising a call video and a call audio, through an Internet protocol, while the broadcasting video is displayed on the display;   determining whether the received video call signal is displayable on the display, based on whether power of the display apparatus is turned on and whether a picture in picture (PIP) function of the display apparatus is activated, in response to the reception of the video call signal;   displaying the call video with the broadcasting video, on the display, overlapping the call audio and the broadcasting audio, and outputting the call audio overlapped with the broadcasting audio through the speaker, in response to the determination that the received video call signal is displayable on the display;   transmitting the call audio of the video call signal to a telephone in response to the determination that the received video call signal is not displayable on the display; and   transmitting an audio that is input through the telephone, via the Internet protocol.    
     
     
       27. The method according to claim 26, wherein the outputting the call audio comprises outputting the broadcasting audio and the call audio simultaneously through the speaker.  
     
     
       28. The method according to claim 27, further comprising adjusting a volume level of either one or both of the output broadcasting audio and the output call audio.  
     
     
       29. The method according to claim 26, wherein the displaying the call video with the broadcasting video comprises:
 displaying the call video on one of a main screen and a sub screen of the display, based on the PIP function of the display; and   displaying the broadcasting video on another one of the main screen and the sub screen in response to the call video being displayed.    
     
     
       30. The method according to claim 26, further comprising:
 transmitting information that is input through a user input unit included in the display apparatus, via a voice over Internet protocol; and   displaying a video corresponding to the input information on the display.    
     
     
       31. The method according to claim 26, wherein the display apparatus comprises a television.  
     
     
       32. A display apparatus comprising:
 a display;   a loudspeaker;   a receiver configured to receive main information;   a video processor configured to process a main video of the received main information and a sub video of sub information that is received through an Internet protocol, to be displayed on the display;   an audio processor configured to process a main audio of the received main information and a sub audio of the received sub information, to be output through the loudspeaker;   a memory configured to store a computer program comprising instructions; and   a processor configured to execute the instructions to implement a controller configured to:
 determine whether the received sub information is displayable on the display, based on whether power of the display is turned on and whether a picture in picture function of the display is activated; 
 control the video processor to display, on the display, the processed sub video with the processed main video, and control the audio processor to output, through the loudspeaker, the processed sub audio with the processed sub video, in response to the determination that the received sub information is displayable on the display; 
 transmit the sub audio to an external device in response to the determination that the received sub information is not displayable on the display; and 
 control to transmit an audio that is input through the external device, through the Internet protocol.  
   
     
     
       33. The display apparatus according to claim 1, wherein the controller is further configured to overlap the processed sub audio and the processed main audio.