Patent Publication Number: US-2010132006-A1

Title: Broadcast receiving apparatus and broadcast outputting apparatus for providing time-shifted broadcast signal, and method for providing time-shifted image thereof

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority from Korean Patent Application No. 10-2008-117626, filed on Nov. 25, 2008, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     Apparatuses and methods consistent with the present invention relate to a broadcast receiving apparatus, a broadcast outputting apparatus, and a method for providing a time-shifted image thereof, and more particularly, to a broadcast receiving apparatus and a broadcast outputting apparatus for providing a time-shifted broadcast signal, and a method for providing a time-shifted image thereof. 
     2. Description of the Related Art 
     A television refers to an apparatus that reproduces an incoming ‘broadcast program’ (hereinafter, referred to as ‘broadcast’) on a screen. Recently, such a TV provides a ‘time-shift’ function. The time-shift function refers to a function for reproducing a broadcast that was previous broadcast, i.e., prior to the current broadcasting time, thereby allowing a user to watch the previous broadcast at a convenient time. For example, when a user does not watch a real-time broadcast for a short while, for example, because he/she goes to the bathroom, the time-shift function records the broadcast and reproduces the broadcast from the point of time that the broadcast has paused, allowing the user to watch the previous broadcast at a convenient time. 
     The time-shifted broadcast is displayed on a full screen of the TV or on a (picture-in-picture) PIP screen. If the time-shifted broadcast is displayed on the full screen, the TV superimposes information regarding a current broadcasting time (hereinafter, referred to as ‘current broadcasting time information’) on the image of the time-shifted broadcast, thereby providing the current broadcasting time information to the user. 
     If the time-shifted broadcast is displayed on the full screen as described above, the user cannot watch the real-time broadcast. Even if the time-shifted broadcast is displayed on the PIP screen, the user cannot watch the part of the real-time broadcast which is covered by the image of the time-shifted broadcast. 
     The user wishes to watch the real-time broadcast without any part being covered by the time-shifted image. Therefore, there is a demand for a method for allowing a user to watch a time-shifted broadcast and a real-time broadcast concurrently. 
     SUMMARY OF THE INVENTION 
     Exemplary embodiments of the present invention overcome the above disadvantages and other disadvantages not described above. Also, the present invention is not required to overcome the disadvantages described above, and an exemplary embodiment of the present invention may not overcome any of the problems described above. 
     The exemplary embodiments of the present invention provide a broadcast receiving apparatus which receives a broadcast signal, transmits the received broadcast signal to a display apparatus, and transmits a broadcast signal stored in a storage unit to another display apparatus, and a method for providing a time-shifted image thereof. 
     The exemplary embodiments of the present invention also provide a broadcast outputting apparatus which receives a broadcast signal and outputs the received broadcast signal, and time-shifts a broadcast signal stored in a storage unit and transmits the time-shifted broadcast signal to a display apparatus, and a method for providing a time-shifted image thereof. 
     Consistent with an aspect of the present invention, a broadcast receiving apparatus comprises a broadcast receiver which receives a broadcast signal, a storage unit which stores the received broadcast signal if a time-shift function is activated, an interface which is connected to a plurality of display apparatuses, and a controller which transmits the received broadcast signal to at least one of the plurality of display apparatuses, and transmits the broadcast signal stored in the storage unit to at least one of other display apparatuses if a command to reproduce the stored broadcast signal is received. 
     A resolution of the received broadcast signal may be different from that of the broadcast signal stored in the storage unit. 
     The broadcast receiving apparatus may further comprise an output unit which outputs at least one of video and audio which are included in the received broadcast signal. 
     If the time-shift function is activated, the controller may change a resolution of the received broadcast signal and store the broadcast signal the resolution of which has been changed to the storage unit. 
     Consistent with another aspect of the present invention, a method for providing a time-shifted image, comprises receiving a broadcast signal, transmitting the received broadcast signal to at least one of a plurality of display apparatuses, if a time-shift function is activated, storing the received broadcast signal, and if a command to reproduce the stored broadcast signal, transmitting the stored broadcast signal to at least one of other display apparatuses. 
     A resolution of the received broadcast signal may be different from that of the stored broadcast signal. 
     The method may further comprise outputting at least one of video and audio which are included in the received broadcast signal. 
     The storing operation may comprises, if the time-shift function is activated, changing a resolution of the received broadcast signal, and storing the broadcast signal the resolution of which has been changed. 
     The at least one of other display apparatuses may be a display apparatus of the plurality of display apparatus that has sent a command to reproduce the stored broadcast signal. 
     Consistent with still another aspect of the present invention, a broadcast outputting apparatus comprises a broadcast receiver which receives a broadcast signal, an output unit which outputs at least one of video and audio which are included in the received broadcast signal, a storage unit which stores the received broadcast signal if a time-shift function is activated, an interface which is connected to a plurality of display apparatuses, and a controller which time-shifts the broadcast signal stored in the storage unit and transmits the time-shifted broadcast signal to at least one of the plurality of display apparatuses if a command to reproduce the stored broadcast signal is received. 
     A resolution of the received broadcast signal may be different from that of the broadcast signal stored in the storage unit. 
     If the time-shift function is activated, the controller may change a resolution of the received broadcast signal and store the broadcast signal the resolution of which has been changed to the storage unit. 
     Consistent with still another aspect of the present invention, a method for providing a time-shifted image of a broadcast outputting apparatus, comprises receiving a broadcast signal, outputting at least one of video and audio which are included in the received broadcast signal, if a time-shift function is activated, storing the received broadcast signal, connecting the broadcast outputting apparatus to a plurality of display apparatuses, and if a command to reproduce the stored broadcast signal is received, transmitting the stored broadcast signal to at least one of the plurality of display apparatuses. 
     A resolution of the received broadcast signal may be different from that of the stored broadcast signal. 
     The storing operation may comprises, if the time-shift function is activated, changing a resolution of the received broadcast signal, and storing the broadcast signal the resolution of which has been changed. 
     Additional and/or other aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWING FIGURES 
       The above and/or other aspects of the present invention will be more apparent by describing certain exemplary embodiments of the present invention with reference to the accompanying drawings, in which: 
         FIG. 1  is a view illustrating a video system for providing a time-shift function consistent with an exemplary embodiment of the present invention; 
         FIG. 2  is a block diagram illustrating a set-top box consistent with an exemplary embodiment of the present invention; 
         FIG. 3  is a flowchart illustrating a method for providing a time-shifted image, which is performed on the set-top box consistent with an exemplary embodiment of the present invention; 
         FIG. 4  is a view illustrating a video system for providing a time-shift function consistent with another exemplary embodiment of the present invention; 
         FIG. 5  is a block diagram illustrating a TV consistent with another exemplary embodiment of the present invention; and 
         FIG. 6  is a flowchart illustrating a method for providing a time-shifted image, which is performed on the TV consistent with another exemplary embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS 
     Certain exemplary embodiments of the present invention will now be described in greater detail with reference to the accompanying drawings. 
     In the following description, same drawing reference numerals are used for the same elements even in different drawings. The matters defined in the description, such as detailed construction and elements, are provided to assist in a comprehensive understanding of the invention. Thus, it is apparent that the exemplary embodiments of the present invention can be carried out without those specifically defined matters. Also, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail. 
       FIG. 1  is a view illustrating a video system for providing a time-shift function according to an exemplary embodiment of the present invention. Referring to  FIG. 1 , a video system comprises a set-top box  100 , a TV  130 , and a sub-display apparatus  160 . 
     The set-top box  100  receives a broadcast signal and transmits the received broadcast signal to the TV  130  in a wired or wireless manner. The set-top box  100  records and stores the received broadcast signal to provide a time-shift function. The set-top box  100  time-shifts the stored broadcast signal and transmits the time-shifted broadcast signal to the sub-display apparatus  160  in a wired or wireless manner. 
     The TV  130  outputs video and audio which are included in the broadcast signal received from the set-top box  100   
     The sub-display apparatus  160  receives the time-shifted broadcast signal from the set-top box  100  and outputs the time-shifted broadcast signal. The time-shifted broadcast signal refers to a broadcast signal which has already broadcasted before the current broadcast signal broadcasts in real time. More specifically, the time-shifted broadcast signal is a broadcast signal which has been recorded since when a time-shift function was activated by a user. 
     In the video system described above, since the real-time broadcast is output through the TV  130  and the time-shifted broadcast is output through the sub-display apparatus  160 , the user can watch the real-time broadcast without any part of it being covered by the time-shifted broadcast and also can watch the time-shifted broadcast through the sub-display apparatus  160 . 
     Hereinafter, the set-top box  100  will be described in detail with reference to  FIG. 2 .  FIG. 2  is a block diagram illustrating the set-top box according to an exemplary embodiment of the present invention. 
     As shown in  FIG. 2 , the set-top box  100  comprises a broadcast receiver  210 , an A/V processor  220 , a storage unit  230 , an interface  240 , a controller  250 , and a remote control receiver  260 . 
     The broadcast receiver  210  receives a broadcast signal from a broadcasting station or satellite in a wired or wireless manner and demodulates the broadcast signal. 
     The A/V processor  220  performs signal-processing, such as video-decoding, video-scaling, and audio-decoding, with respect to a video signal and an audio signal which are included in the broadcast signal received at the broadcast receiver  210 . 
     The storage unit  230  stores the received broadcast signal. That is, in order to provide a time-shift function, the storage unit  230  stores the broadcast signal when the time-shift function is activated. The storage unit  230  may be realized as a hard disk, a non-volatile memory, a flash memory, or other persistent storage. 
     The interface  240  is connected to the TV  130  and the sub-display apparatus  160  in a wired or wireless manner. The interface  240  may be an A/V interface which is operated according to standards such as component, composite, S-Video, DVI, and HDMI, or a network interface of wired LAN if the interface  240  is connected to the TV  130  and the sub-display apparatus  160  in a wired manner. Also, the interface  240  may be a wireless network interface of Bluetooth and wireless LAN if the interface  240  is connected to the TV  130  and the sub-display apparatus  160  in a wireless manner. 
     The remote control receiver  260  receives manipulation by a user from a remote controller  270  and transmits the manipulation to the controller  250 . 
     The controller  250  understands a user command based on the manipulation by a user transmitted from the remote controller  260  and controls the entire operation of the set-top box  100  according to the user command. 
     The controller  250  transmits the received broadcast signal to the TV  130  through the interface  240 . Prior to the display of the received broadcast signal on the TV  130 , the received broadcast signal may be stored in non-persistent memory. Also, the controller  250  time-shifts the broadcast signal which is stored in the storage unit  230  and transmits the time-shifted broadcast signal to the sub-display apparatus  160  through the interface  240 . 
     More specifically, if a time-shift function is activated, the controller  150  stores the received broadcast signal to the storage unit  230 . Then, if a command to reproduce the stored broadcast signal is received, the controller  250  transmits the broadcast signal, which has been stored since the time-shift function was activated, to the sub-display apparatus  160  through the interface  240 . The command to reproduce the stored broadcast signal is a command to reproduce a time-shifted image. The controller  250  stores the broadcast signal when the time-shift function is activated. Accordingly, if the user inputs a command to reproduce the stored broadcast signal, the user can watch the broadcast which has paused since when the time-shift function was activated. 
     The user may input the command to reproduce the stored broadcast signal using an input device of the set-top box  100  or the remote controller  270 , or may input the command using the sub-display apparatus  160 . 
     Accordingly, the sub-display apparatus  160  reproduces the broadcast which has been time-shifted starting when the time-shift function was activated. 
     If a plurality of display apparatuses are connected to the set-top box  100 , the controller  250  may transmit the stored broadcast signal to one of the plurality of display apparatuses that has sent a command to reproduce the stored broadcast signal. 
     If the time-shift function is activated, the controller  250  changes a resolution of the received broadcast signal and stores the broadcast signal whose resolution has been changed in the storage unit  230 . For example, the controller  250  downscales the broadcast signal of high definition (HD) class to the broadcast signal of standard definition (SD) class, and stores the downscaled broadcast signal to the storage unit  230 . Therefore, the resolution of the received broadcast signal may be different from that of the broadcast signal stored in the storage unit  230 . 
     The controller  250  may store the broadcast signal whose resolution has remained unchanged along with the broadcast signal whose resolution has been changed. For example, the controller  250  may store the received broadcast signal of HD class and may change the broadcast signal of HD class to the broadcast signal of SD class and store it along with the broadcast signal of HD class. 
     This is because the sub-display apparatus  160  may display an image with a resolution different from that of the received broadcast signal. Accordingly, the controller  250  may change the resolution of the received broadcast signal to be suitable for the display on the sub-display apparatus  160 . 
     As a result, the broadcast signal stored in the storage unit  230  have a resolution suitable for the sub-display apparatus  160 . 
     On the other hand, the controller  250  may store only the broadcast signal whose resolution remains unchanged in the storage unit  230 . Then, if a command to reproduce the stored broadcast signal (that is, a command to reproduce a time-shifted image) is received, the controller  250  receives resolution information from the sub-display apparatus  160 , changes the resolution of the stored broadcast signal to correspond to the resolution information, and then transmits the broadcast signal whose resolution has been changed to the sub-display apparatus  160 . Accordingly, the set-top box  100  can increase compatibility with respect to the various sub-display apparatuses  160 . 
     As described above, the set-top box  100  time-shifts the broadcast signal stored in the storage unit  230  and transmits the time-shifted broadcast signal to the sub-display apparatus  160 , so that the user can watch the real-time broadcast through the TV  130  and also can simulataneously watch the time-shifted broadcast through the sub-display apparatus  160 . 
     Hereinafter, a method for providing a time-shifted image will be described with reference to  FIG. 3 .  FIG. 3  is a flowchart illustrating a method for providing a time-shifted image, which is performed on the set-top box  100  according to an exemplary embodiment of the present invention. 
     The set-top box  100  receives a broadcast signal (S 310 ). The set-top box  100  is connected to the TV  130  and the sub-display apparatus  160  through the interface  240  in a wired or wireless manner (S 320 ). 
     The set-top box  100  transmits the received broadcast signal to the TV  130  (S 330 ). Then, the TV  130  outputs the broadcast signal received from the set-top box  100  on a screen (S 335 ). 
     The set-top box  100  determines whether a time-shift function is activated or not by a user (S 340 ). The time-shift function refers to a function for recording the broadcast. If the time-shift function is activated (S 340 -Y), the set-top box  100  stores the received broadcast signal to the storage unit  230  (S 350 ). 
     At this time, if the time-shift function is activated, the set-top box  100  may change the resolution of the received broadcast signal and may store the broadcast signal whose resolution has been changed in the storage unit  230 . For example, the set-top box  100  downscales the received broadcast signal of HD class to the broadcast signal of SD class and stores the downscaled broadcast signal to the storage unit  230 . Accordingly, the resolution of the received broadcast signal may be different from that of the broadcast signal stored in the storage unit  230 . 
     This is because the sub-display apparatus  160  may display an image with a resolution different from that of the received broadcast signal. Accordingly, the set-top box  100  changes the resolution of the received broadcast signal to be suitable for the display on the sub-display apparatus  160 . 
     After that, the set-top box  100  determines whether a command to reproduce the stored broadcast signal is received or not from the user (S 360 ). If the command to reproduce the stored broadcast signal is received ( 5360 -Y), the set-top box  100  transmits the stored broadcast signal to the sub-display apparatus  160  (S 370 ). 
     Then, the sub-display apparatus  160  outputs the time-shifted broadcast signal on the screen (S 380 ). That is, the sub-display apparatus  160  displays the broadcast signal which has paused since when the time-shift function was activated. 
     Through the above-described process, the sub-display apparatus  160  displays the time-shifted image. 
     Up to now, the set-top box  100  which transmits a time-shifted broadcast signal to the sub-display apparatus  160  was described with reference to  FIGS. 1 to 3 . 
     Although as a display apparatus connected to the set-top box  100 , the TV  130  and the sub-display apparatus  160  are provided in the above embodiment, any display apparatus can be applied if it can display the broadcast signal. 
     Also, although two display apparatus, the TV  130  and the sub-display apparatus  160 , are provided in the above embodiment, the set-top box  100  may be connected to three or more display apparatuses. In this case, the interface  240  is connected to the plurality of display apparatuses, and the controller  250  transmits the received broadcast signal to at least one of the plurality of display apparatuses, and transmits the time-shifted broadcast signal to at least one of the other display apparatuses. 
     Also, although the broadcast receiving apparatus is the set-top box  100  in the above embodiment, any device can be applied if it can transmit a received broadcast signal to a display apparatus. 
     Hereinafter, a TV  400  which transmits a time-shifted broadcast signal to a sub-display apparatus  160  will be described with reference to  FIGS. 4 to 6 . 
       FIG. 4  is a view illustrating a video system for providing a time-shift function according to another exemplary embodiment of the present invention. As shown in  FIG. 4 , a video system comprises a TV  400  and a sub-display apparatus  160 . 
     The TV  400  receives a broadcast signal and outputs video and audio of the received broadcast signal through a screen and a speaker. Also, the TV  400  records and stores the received broadcast signal to provide a time-shift function. Also, the TV  400  time-shifts the stored broadcast signal and transmits the time-shifted broadcast signal to the sub-display apparatus  160  in a wired or wireless manner. 
     The sub-display apparatus  160  receives a time-shifted broadcast signal from the TV  400 , and outputs the time-shifted broadcast signal. The time-shifted broadcast refers to a broadcast signal which has already been broadcasted before the current broadcast signal broadcasts in real time. More specifically, the time-shifted broadcast signal refers to a signal which has been recorded since the time-shift function was activated by the user. 
     In the video system described above, the TV  400  receives and outputs a real-time broadcast, and the sub-display apparatus  160  outputs a time-shifted broadcast signal. Accordingly, the user can watch the time-shifted broadcast through the sub-display apparatus  160  without covering any part of the real-time broadcast. 
     Hereinafter, the TV  400  will be described in detail with reference to  FIG. 5 .  FIG. 5  is a block diagram illustrating the TV  400  according to another exemplary embodiment of the present invention. 
     As shown in  FIG. 5 , the TV  400  comprises a broadcast receiver  410 , an A/V processor  420 , an audio output unit  430 , a display unit  440 , a storage unit  450 , an interface  460 , a controller  470 , and a remote control receiver  480 . 
     The broadcast receiver  410  receives a broadcast signal from a broadcasting station or satellite in a wired or wireless manner and demodulates the broadcast signal. 
     The A/V processor  420  performs signal-processing, such as video-decoding, video-scaling, and audio-decoding, with respect to a video signal and an audio signal which are included in the broadcast signal received at the broadcast receiver  410 . The A/V processor  420  outputs the video signal to the display unit  440  and outputs the audio signal to the audio output unit  430 . 
     The audio output unit  430  outputs the audio output from the A/V processor  420  through a speaker. 
     The display unit  440  displays the video output from the A/V processor  420 . 
     That is, the display unit  440  and the audio output unit  430  output the video and the audio which are included in the received broadcast signal in real time. 
     The storage unit  450  stores the received broadcast signal. That is, in order to provide a time-shift function, the storage unit  450  stores the received broadcast signal when the time-shift function is activated. The storage unit  450  may be realized as a hard disk, a non-volatile memory, or a flash memory. 
     The interface  460  is connected to the sub-display apparatus  160  in a wired or wireless manner. The interface  460  may be an A/V interface which is operated according to standards such as component, composite, S-Video, DVI, and HDMI, or a network interface of wired LAN if the interface  460  is connected to the sub-display apparatus  160  in a wired manner. Also, the interface  460  may be a wireless network interface of Bluetooth and wireless LAN if the interface  460  is connected to the sub-display apparatus  160  in a wireless manner. 
     The remote control receiver  480  receives manipulation by a user from a remote controller  490  and transmits the manipulation to the controller  470 . 
     The controller  470  understands a user command based on the manipulation by the user transmitted from the remote controller  490 , and controls the entire operation of the TV  400  according to the user command. 
     The controller  470  time-shifts the broadcast signal stored in the storage unit  450  and transmits the time-shifted broadcast signal to the sub-display apparatus  160  through the interface  460 . 
     More specifically, if a time-shift function is activated, the controller  470  stores the received broadcast signal to the storage unit  450 . Then, if a command to reproduce the stored broadcast signal, the controller  470  transmits the broadcast signal, which has been stored since when the time shift function was activated, to the sub-display apparatus  160  through the interface  460 . The command to reproduce the stored broadcast signal refers to a command to reproduce a time-shifted image. The controller  470  stores the broadcast signal when the time-shift function is activated. Accordingly, if the user inputs a command to reproduce the stored broadcast signal, the user can watch the broadcast which has paused since the time shift function was activated. 
     The user may input the command to reproduce the stored broadcast signal through an input device of the TV  400  or the remote controller  490  or may input the command through the sub-display apparatus  160 . 
     Accordingly, the sub-display apparatus  160  reproduces the broadcast which has been time shifted when the time-shift function was activated. 
     Also, if the time-shift function is activated, the controller  470  changes the resolution of the received broadcast signal and stores the broadcast signal whose resolution has been changed in the storage unit  450 . For example, the controller  470  downscales the broadcast signal of HD class to the broadcast signal of SD class, and stores the downscaled broadcast signal to the storage unit  450 . Accordingly, the resolution of the received broadcast signal may be different from the resolution of the broadcast signal stored in the storage unit  450 . 
     Also, the controller  470  may store the broadcast signal whose resolution remains unchanged along with the broadcast signal whose resolution has been changed. For example, the controller  470  may stores the broadcast signal of HD class and changes the received broadcast signal from the HD class to the SD class and stores it along with the broadcast signal of HD class. 
     This is because the sub-display apparatus  160  may display an image with a resolution different from that of the received broadcast signal. Accordingly, the controller  470  may change the resolution of the received broadcast signal to be suitable for the display on the sub-display apparatus  160 . 
     As a result, the broadcast signal stored in the storage unit  450  has a resolution suitable for the sub-display apparatus  160 . 
     The controller  470  may store only the broadcast signal whose resolution remains unchanged in the storage unit  450 . Then, if the command to reproduce the stored broadcast signal (that is, a command to reproduce a time-shifted image) is received, the controller  470  receives resolution information from the sub-display apparatus  160 , changes the resolution of the stored broadcast signal to correspond to the resolution information, and then transmits the broadcast signal whose resolution has been changed to the sub-display apparatus  160 . Accordingly, the TV  400  can increase the compatibility with respect to the various sub-display apparatuses  160 . 
     Since the TV  400  time-shifts the broadcast signal stored in the storage unit  450  and transmits the time-shifted broadcast signal to the sub-display apparatus  160 , the user can watch the real-time broadcast through the TV  400  and also can watch the time-shifted broadcast through the sub-display apparatus  160 . 
     Hereinafter, a method for providing a time-shifted image will be described with reference to  FIG. 6 .  FIG. 6  is a flowchart illustrating a method for providing a time-shifted image, which is performed on the TV  400  according to another exemplary embodiment of the present invention. 
     The TV  400  receives a broadcast signal (S 610 ). The TV  400  outputs at least one of video and audio which are included in the received broadcast signal (S 620 ). That is, the TV  400  outputs a real-time broadcast. 
     The TV  400  is connected to the sub-display apparatus  160  through the interface  460  in a wired or wireless manner (S 630 ). 
     After that, the TV  400  determines whether a time-shift function is activated or not by the user (S 640 ). The time-shift function refers to a function for recording the broadcast. Accordingly, if the time-shift function is activated ( 5640 -Y), the TV  400  stores the received broadcast signal to the storage unit  450  (S 650 ). 
     If the time-shift function is activated, the TV  400  may change the resolution of the received broadcast signal and may store the broadcast signal whose resolution has been changed in the storage unit  450 . For example, the TV  400  downscales the broadcast signal of HD class to the broadcast signal of SD class and stores the downscaled broadcast signal to the storage unit  450 . Accordingly, the resolution of the received broadcast signal may be different from that of the broadcast signal stored in the storage unit  450 . 
     This is because the sub-display apparatus  160  may display an image with a resolution different from that of the received broadcast signal. Accordingly, the TV  400  may change the resolution of the received broadcast signal to be suitable for the display on the sub-display apparatus  160 . 
     After that, the TV  400  determines whether a command to reproduce the stored broadcast signal is received or not from the user (S 660 ). If the command to reproduce the stored broadcast signal is received (S 660 -Y), the TV  400  transmits the stored broadcast signal to the sub-display apparatus  160  (S 670 ). 
     Then, the sub-display apparatus  160  outputs the time-shifted broadcast signal on the screen (S 680 ). That is, the sub-display apparatus  160  outputs the broadcast signal which has paused since when the time-shift function was activated on the screen. 
     Through the above-described process, the TV  400  can display the time-shifted image on the sub-display apparatus  160 . 
     Although the sub-display apparatus  160  serves as a display apparatus for the TV  400  in the above embodiment, any display apparatus can be applied if it can display the broadcast signal. 
     Also, although one sub-display apparatus  150  is provided in the above embodiment, the TV  400  may be connected to two or more display apparatuses. In this case, the interface  460  is connected to the plurality of display apparatuses, and the controller  470  transmits the time-shifted broadcast signal to at least one of the plurality of display apparatuses. 
     Also, although the TV  400  is provided as a broadcast outputting apparatus in the above embodiment, any apparatus can be applied if it can output the broadcast signal on its own screen. 
     According to the exemplary embodiments of the present invention described above, it is possible to provide a broadcast receiving apparatus, which receives a broadcast signal and transmits the received broadcast signal to a display apparatus, and time-shifts a broadcast signal stored in a storage unit and transmits the time-shifted broadcast signal to another display apparatus, and a method for providing a time-shifted image thereof. Accordingly, the user can watch the time-shifted broadcast through an external display apparatus. 
     Also, since the time-shifted broadcast is reproduced through another display apparatus different from a display apparatus broadcasting a real-time broadcast, the user can watch the time-shifted broadcast using an external display apparatus without covering any part of the real-time broadcast. 
     The foregoing exemplary embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teaching can be readily applied to other types of apparatuses. Also, the description of the exemplary embodiments of the present invention is intended to be illustrative, and not to limit the scope of the claims, and many alternatives, modifications, and variations will be apparent to those skilled in the art.