Video display device, terminal device, and method thereof

Abstract

A video display apparatus pairs with a first terminal device. The video display apparatus receives an audio-visual content, and displays the audio-visual content. The video display apparatus acquires enhanced service information on an available enhanced service for the audio-visual content, and notifies an occurrence of the available enhanced service to the first terminal device.

1 - 28 . (canceled) 
     
     
         29 . A video display device comprising:
 a display unit;   a receiving unit configured to obtain a broadcast content; and   a control unit configured to perform automatic content recognition(ACR) by executing an ACR application,   wherein the control unit is further configure to   extract one or more video frames from the broadcast content,   transmit a first query including the one or more video frames to a first server,   obtain an address of a second server based on the first query,   transmit, to the second server, a second query based on the address of the second server, and   obtain an enhanced service based on the second query,   wherein the display unit displays the broadcast content and the enhanced service,   wherein the control unit is further configured to terminate the ACR application, when a first broadcast content currently being viewed is changed to a second broadcast content other than the first broadcast content.   
     
     
         30 . The video display device according to  claim 29 , wherein the control unit terminates the ACR application, when an user input for a channel change is received. 
     
     
         31 . The video display device according to  claim 30 , wherein the user input for a channel change is transmitted from a terminal device. 
     
     
         32 . The video display device according to  claim 29 , wherein the broadcast content is uncompressed video content. 
     
     
         33 . The video display device according to  claim 29 , further comprising:
 a tuner to receive a broadcast signal including the broadcast content.   
     
     
         34 . An operating method of a video display device comprising:
 obtaining a broadcast content through an receiving unit;   extracting one or more video frames from the broadcast content;   transmitting a first query including the one or more video frames to a first server;   obtaining an address of a second server based on the first query;   transmitting, to the second server, a second query based on the address of the second server;   obtaining an enhanced service based on the second query; and   displaying the broadcast content and the enhanced service,   wherein the method further comprises:   terminating the ACR application, when a first broadcast content currently being viewed is changed to a second broadcast content other than the first broadcast content.   
     
     
         35 . The operating method of a video display device according to  claim 34 ,
 wherein terminating the ACR application comprises,   terminating the ACR application, when an user input for a channel change is received.   
     
     
         36 . The operating method of a video display device according to  claim 35 ,
 wherein the user input for a channel change is transmitted from a terminal device.   
     
     
         37 . The operating method of a video display device according to  claim 34 ,
 wherein the broadcast content is uncompressed video content.