Video Output Device and Video Output Method

Abstract

According to one embodiment, a video output device includes a receiver, a program guide obtaining module, an output signal processor, a user identification module, a view history storage module, and a program advice module. The receiver receives a broadcast signal of a program. The program guide obtaining module obtains program guide data. The output signal processor outputs a video signal of the broadcast signal to an output module. The user identification module identifies a user who is viewing the program. The view history storage module stores the program as view history in association with the user. The program advice module searches the program guide data for a recommended program similar to programs viewed by the user in the past using a keyword based on the view history and creates a program advice message suggesting the recommended program. The output signal processor outputs the program advice message to the output module.

What is claimed is: 
     
         1 . A video output device comprising:
 a receiver configured to receive a broadcast signal of a program;   a program guide obtaining module configured to obtain program guide data as event information related to the program;   an output signal processor configured to output a video signal of the program obtained by processing the broadcast signal received by the receiver to an output module;   a view history storage module configured to store the viewed program as view history; and   a program advice module configured to search the program guide data obtained by the program guide obtaining module for a recommended program similar to programs viewed in the past using a keyword based on the view history stored in the view history storage module storing the program output to the output module, and to create a program advice message suggesting the recommended program, wherein   the output signal processor is configured to output a video signal produced by overlaying the program advice message created by the program advice module on the video signal of the program to the output module.   
     
     
         2 . The video output device of  claim 1 , wherein the program advice module is configured to change a time slot to search the program guide data for a recommended program depending on determination as to whether the user is viewing a program, the user is searching for a program to view, or the user intends to stop viewing a program. 
     
     
         3 . The video output device of  claim 1 , wherein the output signal processor is configured to generate an on-screen display (OSD) signal from the program advice message created by the program advice module and output the OSD signal as being superimposed on the video signal of the program. 
     
     
         4 . The video output device of  claim 1 , wherein the output signal processor is configured to generate an audio signal from the program advice message created by the program advice module and output the audio signal. 
     
     
         5 . The video output device of  claim 1 , wherein, if there is a plurality of recommended programs, the program advice module creates a program advice message suggesting the recommended programs all together. 
     
     
         6 . The video output device of  claim 1 , wherein the program advice module is configured to perform keyword search on title information of the program guide data using title information as the keyword based on the view history stored in the view history storage module in association with the user who is viewing the program output to the output module, and to determine a program with a matching rate equal to or more than a threshold as the recommended program. 
     
     
         7 . The video output device of  claim 1 , wherein the program advice module is configured to perform keyword search on category information of the program guide data using category information as the keyword based on the view history stored in the view history storage module in association with the user who is viewing the program output to the output module, and to determine a program with a matching rate equal to or more than a threshold as the recommended program. 
     
     
         8 . The video output device of  claim 1 , wherein the program advice module is configured to perform keyword search on cast information of the program guide data using cast information as the keyword based on the view history stored in the view history storage module in association with the user who is viewing the program output to the output module, and to determine a program with a matching rate equal to or more than a threshold as the recommended program. 
     
     
         9 . A video output method applied to a video output device comprising an output signal processor configured to output a video signal of a program obtained by processing a broadcast signal of the program received by a receiver to an output module, the video output method comprising:
 obtaining program guide data as event information related to the program;   storing the viewed program as view;   searching the program guide data for a recommended program similar to programs viewed in the past using a keyword based on the view history stored in the storage module storing the program output to the output module, and creating a program advice message suggesting the recommended program; and   outputting a video signal produced by overlaying the program advice message on the video signal of the program to the output signal processor.