WO2009084110A1

WO2009084110A1 - Broadcast displaying device, broadcast displaying method, and computer program

Info

Publication number: WO2009084110A1
Application number: PCT/JP2007/075318
Authority: WO
Inventors: Toshiro Ohbitsu
Original assignee: Fujitsu Limited
Priority date: 2007-12-28
Filing date: 2007-12-28
Publication date: 2009-07-09
Also published as: JP4973737B2; JPWO2009084110A1

Abstract

An MPEG extending portion (21) extends a video signal inputted from a tuner (2) and stores frame-by-frame video data in a buffer portion (22). A displaying portion (23) displays the video of the program on a display (13) based on the video data read out sequentially from the buffer portion (22). A video processing portion (24) copies onto a memory (17) a region in the frame-by-frame video data read out sequentially from the buffer portion (22) which is indicated by the place about the broadcasting station which broadcasts the program which has been defined during the definition of emergency broadcast. A judging portion checks whether either one of the character patterns defined during the definition of emergency broadcast is included in the video data. When either one of the character patterns is included in the video data, a file recording portion (27) records a portion of the video after a portion of the video wherein the character pattern is included for a predetermined period of time as video data on a hard disc (11). Then, a processing portion (26) displays the message saying that there were emergency broadcast on a display (13) and reads out the video data from the hard disc (11) and reproduces it according to the demand for reproduction from a viewer.

Description

Broadcast display device, broadcast display method, and computer program

The present invention provides a broadcast display device, a broadcast display method, and a broadcast display method for receiving a broadcast signal of a television broadcast using a tuner and displaying a program on a display based on video data carried by the broadcast signal. The present invention relates to a computer program for causing a computer with a built-in tuner or an external device to perform the broadcast display method.

In recent years, television broadcasting systems are shifting from conventional analog systems to digital systems. This makes it possible to develop tuners with high reception sensitivity even with a small circuit scale, so digital television broadcasting (especially broadcasting for mobile phones and mobile terminals, for example, one-segment partial reception service in Japan [hereinafter, special note If it is necessary to do so, it is expressed as “One Seg”]) personal computer with built-in tuner, mobile computing device (digital music player, PDA [Personal Digital Assistance], smartphone, mobile phone, etc.) Digital television broadcast receiving tuners that can be connected to a personal computer are commercially available. These products control the tuner and display it on the display based on the video signal separated from the broadcast signal when the tuner receives the broadcast signal of the digital television broadcast (that is, the program An application program for performing (display) is attached (preinstalled in a product with a built-in tuner).

FIG. 5 shows a general example of a window for displaying a digital television broadcast program displayed on the display by such an application program. As shown in FIG. 5, in the window for a digital television broadcast program by such an application program, a program display column 31 for displaying program contents as a moving image, and a channel of a program displayed in the program display column 31 are switched. An operation panel 32 including a plurality of operation buttons 32a operated to operate the recording function of the application program is always displayed. The remaining space of the window 30 is a free space 33, and related information other than program contents is displayed. For example, when a data broadcast is performed by a program and a channel being displayed in the program display field 31, the content 34 of the data broadcast is displayed (FIG. 5 shows a state in which the content of the data broadcast is displayed. Show). Further, the properties of the application program and the GUI for setting options are also displayed in the free space 33 as necessary.

By the way, in digital television broadcasting as well as conventional analog broadcasting, emergency broadcasting such as earthquake bulletins, weather warnings for notifications such as various warnings and warnings, etc. is performed. Such emergency broadcasting is important for prompt reporting and must be forcibly and unilaterally notified to the viewer, so it is appropriate to put it on a data broadcast that is a broadcasting format that requires the viewer's active operation. Instead, it is displayed as a telop (superimposed) on the video of the program being displayed as a moving image.

However, the program display column 31 in the window that is displayed on only a part of the display screen of the personal computer or that is originally displayed on the display of the mobile computing device having a small area has a small absolute area, so that its resolution is low. No matter how high, it was difficult to recognize the contents of the telop at a glance. In particular, in the case of digital television broadcasting with a narrow original frequency band used, such as One Seg broadcasting in Japan, it is difficult to decode due to the low resolution, and when the program video changes drastically, frames are dropped. As a result of this, there is a problem that reading becomes increasingly difficult.

One way to solve this problem is to output an emergency broadcast as a sound. For example, when viewing a digital television broadcast on a personal computer, the user may view the broadcast while performing other work. In many cases, the volume of the audio is reduced. In this case, the emergency broadcast is overlooked. And since the emergency broadcast once missed cannot be accessed again by the viewer unless it is repeatedly broadcast, the viewer may end up in a crisis without knowing the contents of the emergency broadcast.

Japanese Patent Application Laid-Open No. 10-232884 discloses a method that focuses on the fact that the configuration data of video software changes in order to identify the telop displayed on the screen. Thus, it is conceivable to automatically recognize the contents of emergency broadcasts in video broadcast on digital television using the technology disclosed in this publication. However, the telop superimposed on the television broadcast video is not limited to the emergency broadcast, and includes, for example, subtitles and other effect characters, and a display indicating that the displayed telop is an emergency broadcast. However, depending on the broadcasting station, according to the technique described in the above publication, it is not possible to accurately identify only the emergency broadcast from the mixed telops.
Japanese Patent Laid-Open No. 10-232884

Therefore, an object of the present invention is to display an emergency broadcast that is superimposed on the video of the program when the video of the program of the television broadcast is displayed on the display of a computer such as a personal computer or a mobile computing device. A television broadcast display device, a television broadcast display method, and a computer program capable of identifying the telop of the image, recording the video of the emergency broadcast telop, and re-displaying it according to a viewer's request, Is to provide.

A broadcast display apparatus for displaying a television broadcast program on a display according to the present invention, wherein a reception channel can be set and video data is separated from a television broadcast signal broadcast on the set channel A tuner for each channel, a storage device for storing a position of an area for displaying a telop by emergency broadcast in a video and a character pattern definition indicating that the telop is for an emergency broadcast in association with each other, and the tuner The display unit that displays video on the display based on the separated video data, and the storage associated with the channel set in the tuner for each video of the frame represented by the video data separated by the tuner In association with the same channel in the area indicated by the location definition stored in the device A determination unit that determines whether or not the character pattern indicated by the definition of the character pattern stored in the storage device is included, and the determination unit determines that the character pattern is included in the area A recording unit for recording the video in the area for a predetermined time; and when the recording is performed, a message indicating that there is an emergency broadcast is displayed on the display and the recording unit records the video. And a display processing unit that displays an image of the region on the display.

A computer program according to the present invention can set a reception channel and a computer having a tuner, a storage device, and a display for separating video data from a television broadcast signal broadcast on the set channel for each channel. , A storage means for associating the position of a region for displaying a telop by emergency broadcast in a video and a character pattern definition indicating that the telop is for emergency broadcast in the storage device, and the video separated by the tuner Display means for displaying video on the display based on the data, each video of the frame represented by the video data separated by the tuner is stored in the storage device in association with the channel set in the tuner In the area indicated by the definition of the Corresponding determination means for determining whether or not the character pattern indicated by the definition of the character pattern stored in the storage device is included, and the determination means determines that the character pattern is included in the area In this case, recording means for recording the image of the area in the storage device for a predetermined time, and if the recording is performed, a message indicating that there was an emergency broadcast is displayed on the display, It is made to function as a display processing means which displays the image | video of the said area | region recorded by the said recording means on the said display.

A broadcast display method according to the present invention is a display device having a tuner, a storage device, a display, and a processing device that can set a reception channel and separate video data from a television broadcast signal broadcast on the set channel. In the broadcast display method, the storage device supports, for each channel, the position of the area where the telop is displayed by the emergency broadcast in the video and the definition of the character pattern indicating that the telop is by the emergency broadcast. And the display unit displays the video on the display based on the video data separated by the tuner, and the processing unit displays a frame represented by the video data separated by the tuner. For each video, the recording is associated with the channel set in the tuner. Determining whether the area indicated by the definition of the position stored in the device includes a character pattern indicated by the character pattern definition stored in the storage device in association with the channel; However, when the determination means determines that the character pattern is included in the area, the image of the area is recorded in the storage device for a predetermined time, and the processing apparatus performs the recording. Is characterized in that a message to the effect that there is an emergency broadcast is displayed on the display, and an image of the area recorded in the storage device is displayed on the display.

According to the present invention configured as described above, for each channel, in association with the position of the area for performing telop display by emergency broadcast in the video and the definition of the character pattern indicating that the telop is due to emergency broadcast, It is stored in the storage device. Therefore, an area in which an emergency broadcast telop is displayed is stored in association with the channel in the video of the program displayed on the display based on the television broadcast signal of the channel currently received by the tuner. Identified based on definitions stored in the device. Also, whether the telop displayed in the area is for emergency broadcasting includes one of the character patterns stored in the storage device in association with the channel in the area in the video of each frame. Judgment based on whether or not. When it is detected in this way that a character pattern appears in the area, an emergency broadcast telop is displayed in the area for a predetermined time, and the video in the area is stored for a predetermined time. The video is recorded on the device and is displayed on the display. The video including the emergency broadcast telop recorded in this way can be arbitrarily reproduced after the recording is completed. Therefore, the viewer can check the contents carefully without missing the emergency broadcast.

It is a block diagram which shows schematic structure of the display apparatus of the digital television broadcast which is embodiment of this invention. (Example 1) It is a table | surface which shows the data structure of a channel list. (Example 1) It is a table | surface which shows the data structure of an emergency broadcast definition. (Example 1) It is a block diagram which shows the correlation of the function implement | achieved when CPU executes an application program. (Example 1) It is a figure which shows the window in the normal time. (Example 1) It is a figure which shows the window at the time of a setting menu display. (Example 1) It is a figure which shows the window when the recording of emergency broadcast is completed. (Example 1) It is a figure which shows the window at the time of reproduction | regeneration of emergency broadcast. (Example 1) It is a flowchart which shows the process which CPU performs according to an application program. (Example 1)

Explanation of symbols

1 personal computer 2 tuner 11 hard disk 12 CPU
13 Display 24 Video processing unit 25 Judgment unit 26 Processing unit 27 File recording unit

Embodiments of a television broadcast display device according to the present invention will be described below. A television broadcast display device described below has a digital TV tuner connected to an interface (for example, a USB interface) of a personal computer, controls the tuner, and displays on the display based on video data input by the tuner. The application program for displaying the video of the program is installed in the disk device of the personal computer. However, a system having the same configuration can be realized by having a tuner built in the personal computer and preinstalled in the application program. If the function of the personal computer is specialized, it is equivalent to various mobile computing devices. That is, these differences are nothing but a difference in product configuration, and the present invention is not limited to any of these. The present invention is also applicable to a display device that receives and displays an analog television broadcast as long as the analog television broadcast is being performed.
(Configuration of television broadcast display device)
FIG. 1 is a block diagram illustrating a hardware configuration of a television broadcast display apparatus according to the present embodiment. As shown in FIG. 1, the digital television broadcast display device according to the present embodiment includes a personal computer 1 and a tuner 2 connected to the USB interface 10 in terms of hardware configuration. The personal computer 1 and the tuner 2 themselves are commercially available, and each has a general circuit configuration for exhibiting necessary functions. Therefore, detailed description thereof will be omitted, and only functions related to the present invention will be described below.

First, the tuner 2 receives a broadcast signal of a digital television broadcast through an antenna 3 or a cable of a cable television, separates video data of a program carried by the broadcast signal, and inputs it to the personal computer through the interface To do.

Next, reference numeral 11 denotes a storage device (storage means) in which the application program is installed and various tables (channel list in FIG. 3, emergency broadcast definition in FIG. 4) referred to by the application program are stored. As a hard disk. Reference numeral 12 reads out and executes various programs installed in the hard disk 11 to execute processing of the entire personal computer 1, and controls the tuner 2 by executing the application program, thereby controlling the tuner 2. This is a CPU as a control device (control means) that displays the video of the program based on the video data input by, on the display 13 and outputs the sound from the speaker 14.

Reference numerals

15 and 16 denote a keyboard and a pointing device for inputting various commands to the CPU 12 when operated by a viewer. Reference numeral 17 denotes a memory in which a work area of the CPU 12 is expanded.

The channel list illustrated in FIG. 2 is created by pre-processing by the application program and stored in the hard disk 11. This channel list associates broadcasting stations assigned to the respective channels that can be received by the tuner 1 in the area where the tuner 1 exists (that is, key stations of the broadcasting network to which the broadcasting station is subscribed). Defined.

The emergency broadcast definition illustrated in FIG. 3 is based on the assumption that each broadcast network has a different position on the screen for displaying an emergency broadcast telop and a character string indicating that the telop is an emergency broadcast. For each key station of the network, a position on the screen for displaying an emergency broadcast telop and one or more character strings (character patterns) indicating that the telop is an emergency broadcast are defined in association with each other. Note that the position in the screen is defined as, for example, an XY coordinate value range in which the upper left corner of the screen is the origin and increases one by one every time one pixel is shifted in the horizontal and vertical directions. The channel list and the emergency broadcast definition are associated with the broadcasting station (key station) as a key, but they are combined to form a single table in which the definition of the position and the definition of the character pattern are associated with each channel. It is also good.

FIG. 4 shows a series of functions (MPEG decompression unit 21, buffer unit 22, display unit 23, video processing unit 24, determination unit 25, processing performed by the CPU 12 by executing the application program installed in the hard disk 11. The unit 26 and the file recording unit 27) are expressed as a block diagram.

Although not shown in FIG. 4, functions obtained by the CPU 12 executing the application program further include a function for displaying the window 30 shown in FIGS. 5 to 8 on the display 13, a keyboard 15, and a pointing device. 6 includes a function of displaying the setting menu 40 shown in FIG. 6 in the free space 33 of the window 30 in accordance with a command from the viewer input through the program 16. This setting menu 40 includes an emergency broadcast setting icon 41. When this icon 41 is operated, the presence / absence of emergency broadcast setting is toggled and registered in the hard disk 11.

Further, for functions obtained by the CPU 12 executing the application program, the tuner 2 is controlled, and the channel selected in accordance with the instruction from the viewer input through the keyboard 15 and the pointing device 16 is set. Is received, and the video signal (MPEG2 compliant) separated by the tuner 2 from the broadcast signal is received.

The MPEG decompression unit 21 shown in FIG. 4 decompresses the video data received from the tuner 2 by MPEG and buffers it in the buffer unit 22 as an image for each frame.

The display unit 23 sequentially reads out the video for each frame from the buffer unit 22 and displays it in the program display column 31 in the window 30. The display unit 23 displays the requested information in the free space 33 (corresponding to display means) in accordance with a command from the viewer input through the keyboard 15 and the pointing device 16.

The video processing unit 24 reads the key station name of the broadcast network to which the channel set in the tuner 2 is assigned from the channel list (FIG. 2). After that, the video processing unit 24 sequentially reads out the video for each frame from the buffer unit 22, extracts the area indicated by the range of the XY coordinate values in the video of each frame, and writes it in the memory 17.

The determination unit 25 determines the range of XY coordinate values corresponding to the key station name read from the channel list (FIG. 2) by the video processing unit 24 (the position of the area where the key station superimposes the emergency broadcast telop). And, the emergency broadcast definition (FIG. 3) is read out for the definition of the character pattern (a character string indicating that the key station is for emergency broadcast). After that, the determination unit 25 checks whether each character pattern is included by analyzing the video sequentially written on the memory 17. This analysis includes a method for determining whether the character string obtained by performing digital character recognition on the diagram contained in the extracted video matches each character pattern, and included in the extracted video It is possible to employ a method for determining whether or not the degree of coincidence exceeds a predetermined threshold by performing pattern matching between the diagram to be displayed and the shape of each character pattern. For example, as shown in FIG. 5, when a “breaking news” telop is superimposed on the video of the program, the display position of this telop is defined for the key station to which the channel of the program is assigned. It is determined whether or not “breaking news” is included in the character pattern defined for the key station included in the range of the XY coordinate values. The entire video processing unit 24 and the determination unit 25 correspond to the “determination unit (determination unit)” in the present invention.

When the determination unit 25 determines that a character pattern is included in the extracted video, the file recording unit 27 adds a header to a series of video data extracted by the video processing unit 24 for a predetermined time thereafter, Video data is recorded on the hard disk 11 (corresponding to a recording unit and recording means).

When the determination unit 25 determines that a character pattern is included in the extracted video, the processing unit 26 outputs a sound meaning that “notification of information is about to start” from the speaker 14, and displays in the window 30. The display content of the free space 33 is switched to display that the emergency broadcast is currently being performed. When the recording is completed after the predetermined time has elapsed, the processing unit 26 switches the display content of the free space 33 in the window 30 as shown in FIG. In other words, in the free space 33, a message 36 indicating “there was an emergency broadcast”, a “close message” button 37 for closing the message, and video data recorded by the file recording unit 27 for the emergency broadcast are displayed. Displayed together with a “display emergency broadcast” button 38 for reproduction. Thereafter, when the instruction from the viewer input through the keyboard 15 and the pointing device 16 is to operate the “close message” button 37, the processing unit 26 deletes the message 36 and the hard disk. The video data of the emergency broadcast in 11 is deleted. Further, in the case of operating the “display emergency broadcast” button 38, the video data of the emergency broadcast in the hard disk 11 is read, and as shown in FIG. The telop video 35 that is the content of the emergency broadcast is displayed in the free space 33 of the window 30. At this time, the processing unit 26 recognizes that the video data is an emergency broadcast recorded by adding the header to the video data, and a predetermined playback speed (for example, a speed of 1/2). Then, the telop of the emergency broadcast is reproduced and displayed (corresponding to a display processing unit and display processing means).

FIG. 9 is a flowchart showing a main part of processing executed by the CPU 12 that has read the application program described above.

In the first S01 after the processing according to FIG. 9 is started, the CPU 12 (display unit 23) displays a window on the display 13, and the broadcast signal of the channel that was last set at the time of the previous activation is displayed on the tuner 2. And MPEG decompression (MPEG decompression unit 21) and buffering (buffer unit 22). Then, the buffered video data is sequentially displayed in the program display field 31 and the sound of the speaker 14 is output to start the video display of the program.

In the next S02, the CPU 12 (video processing unit 24) checks whether or not the emergency broadcast setting is set to ON in the hard disk 11. When the emergency broadcast setting is set to OFF, the CPU 12 (display unit 23) returns the process to S01.

On the other hand, when the emergency broadcast setting is set to ON, the CPU 12 (video processing unit 24) selects a key station corresponding to the channel currently set in the tuner 2 in the channel list (see FIG. 2), it is checked whether the character pattern is registered in the emergency broadcast definition (FIG. 3) for the key station. If no character pattern is registered, the process returns to S01.

On the other hand, when one or more character patterns are registered, the CPU 12 (video processing unit 24) defines the emergency broadcast definition for the key station corresponding to the current channel from the buffered video data (see FIG. The block indicated by the location registered in 3) (the range of the XY coordinate values) is cut out and copied to the memory 17.

In the next S05, the CPU 12 (determination unit 25) is registered in the emergency broadcast definition (FIG. 3) for the key station corresponding to the current channel in the block of the video data copied to the memory 17 in S04. Start monitoring whether the character pattern is included.

In the next S06, the CPU 12 checks whether or not a channel change command (operation on the button 32a regarding channel change) is input from the viewer through the keyboard 15 or the pointing device 16. When a channel change command is input, the CPU 12 returns the process to S01.

On the other hand, if a channel change command has not been input, the CPU 12 determines in S07 that the current video data block copied to the memory 17 in S04 is the current result of monitoring started in S05. It is checked whether any character pattern registered in the emergency broadcast definition (FIG. 3) is found for the key station corresponding to the channel, and if it is not found yet, the process returns to S06.

On the other hand, when no character pattern registered in the emergency broadcast definition (FIG. 3) is found for the key station corresponding to the current channel in the block of the video data copied to the memory 17 in S04. In step S08, the CPU 12 (file recording unit 27) adds a header to a series of video blocks copied to the memory 17 after the video block in which any character pattern registered in the emergency broadcast definition is found. Then, storage (recording) is started as video data in the hard disk 11.

In the next S09, the CPU 12 (file recording unit 27) waits for a state in which the recording should be ended when a predetermined time has elapsed after the start of the recording in S08. When the recording is to be ended, the CPU 12 advances the process to S10, stops the recording, and displays the message 36 and

buttons

37 and 38 shown in FIG.

In the next S11, the CPU 12 (file recording unit 27) writes the emergency broadcast in the header of the video data that has been recorded in the HDD 11.

In the next S12, the CPU 12 (processing unit 26) checks whether or not an emergency broadcast reproduction command (operation on the “emergency broadcast display” button 38) is input from the viewer through the keyboard 15 or the pointing device 16. . If no emergency broadcast reproduction command is input, the CPU 12 returns the process to S01.

On the other hand, if an emergency broadcast reproduction command is input, the CPU 12 displays a dialog 35 for emergency broadcast (telop video) in the free space 33 in the window 30 in S13, and the hard disk. Based on the video data recorded in 11, playback is performed at a predetermined playback speed in the dialog (FIG. 8). When this reproduction is completed, the CPU 13 (processing unit 26) advances the process to S14 and deletes the dialog 35 from the free space 33. When S14 is completed, the CPU 12 returns the process to S06.

According to the present embodiment described above, the position where the emergency broadcast telop is displayed on the screen is different for each broadcast station (key station) to which each channel is assigned, or the telop displayed on the screen is the emergency broadcast. Even if the character strings indicating that they are different are defined in advance for each channel, the video processing unit 24 cuts out the video from the area indicated by the defined position, and the determination unit 25 It is sufficient to determine whether or not the defined character string is included in the clipped video. Accordingly, it is possible to accurately identify the emergency broadcast from the cobblestone mixed telops, while minimizing the load on the CPU 12 for monitoring the presence or absence of the emergency broadcast. If it is determined that an emergency broadcast is being made, the video clipped by the video processing unit 24 is recorded as it is, and a message 36 indicating that there was an emergency broadcast is displayed in the window when the emergency broadcast ends. It is displayed in the free space 33 in 30. Therefore, even if the viewer does not notice the emergency broadcast while the emergency broadcast is being made, the fact that the emergency broadcast has been made can be realized by looking at the free space 33 thereafter. Moreover, if the viewer operates the “display emergency broadcast” button 38, the emergency broadcast is reproduced at a predetermined speed (for example, 1/2) based on the video data recorded on the hard disk 11. Even if the resolution is low or the text is small, the viewer can carefully check the contents of the emergency broadcast.

In the above embodiment, a video clipped from a normal program broadcast video is recorded on the hard disk 11 as it is. However, text obtained by character recognition processing may be recorded on the hard disk 11. Also, the emergency broadcast video data that has been played once may be deleted from the hard disk 11 or may be left in order to be able to be played back repeatedly. Moreover, in the said embodiment, although only the image | video of the block cut out by the image | video process part 24 was recorded, you may record the whole screen. When the emergency broadcast is played back by the processing unit 26, the emergency broadcast telop may be enlarged and displayed.

In addition, although the said embodiment illustrated the display apparatus of the digital television broadcast, it is not limited to this, It is employable also as the display apparatus of an analog television broadcast. In that case, what is necessary is just to change suitably to the processing content corresponding to the broadcasting system and standard of analog television broadcasting.

As described above, when a broadcast display device according to the present invention displays a television broadcast program video on the display of a computer such as a personal computer or a mobile computing device, the super display is included in the program video. The paused emergency broadcast telop can be identified, and the video of the emergency broadcast telop can be recorded and redisplayed at the request of the viewer.

Claims

A broadcast display device for displaying a television broadcast program on a display,
A tuner that can set a reception channel and separates video data from a television broadcast signal broadcast on the set channel;
A storage device that stores, in association with each channel, a position of an area for displaying a telop by emergency broadcast in a video and a character pattern definition indicating that the telop is from an emergency broadcast;
A display unit for displaying an image on the display based on the video data separated by the tuner;
Each frame image represented by the video data separated by the tuner is associated with the channel in the area indicated by the position definition stored in the storage device in association with the channel set in the tuner. A determination unit that determines whether or not the character pattern indicated by the definition of the character pattern stored in the storage device is included;
When the determination unit determines that the character pattern is included in the area, a recording unit that records a video of the area over a predetermined time;
When the recording is performed, the display processing unit displays a message indicating that there is an emergency broadcast on the display and displays the video of the area recorded by the recording unit on the display. A broadcast display device characterized by that.
The determination unit stores only an area indicated by a definition of a position stored in the storage device in association with a channel set in the tuner, from an image of each frame represented by the video data separated by the tuner. And determining whether or not the video copied to the memory includes a character pattern indicated by a character pattern definition stored in the storage device in association with the channel. Item 2. The broadcast display device according to Item 1.
The recording unit records the video copied to the memory by the determination unit as video data for a predetermined time,
3. The broadcast display device according to claim 2, wherein the display processing unit displays the image of the area on the display by the display unit based on the video data.
The display processing unit displays the video of the area recorded by the recording unit on the display by the display unit in response to a command input by a viewer via an input device. Item 2. The broadcast display device according to Item 1.
A reception channel can be set, and a computer having a tuner, a storage device, and a display for separating video data from a television broadcast signal broadcast on the set channel,
Storage means for storing in the storage device the position of an area for displaying telop by emergency broadcast in the video and the definition of a character pattern indicating that the telop is by emergency broadcast for each channel,
Display means for displaying an image on the display based on the video data separated by the tuner;
Each frame image represented by the video data separated by the tuner is associated with the channel in the area indicated by the position definition stored in the storage device in association with the channel set in the tuner. Determining means for determining whether or not a character pattern indicated by a character pattern definition stored in the storage device is included;
When the determination means determines that the character pattern is included in the area, the recording means for recording the image of the area in the storage device for a predetermined time, and when the recording is performed, A computer program that displays a message that an emergency broadcast has occurred on the display and that functions as a display processing unit that displays an image of the area recorded by the recording unit on the display.
A broadcast display method in a display device having a tuner, a storage device, a display, and a processing device that can set a reception channel and separates video data from a television broadcast signal broadcast on the set channel. ,
The storage device stores, for each channel, the position of an area for displaying telop by emergency broadcast in the video and the definition of a character pattern indicating that the telop is by emergency broadcast,
The display displays video on the display based on the video data separated by the tuner;
For each frame image represented by the video data separated by the tuner, the processing device has the same location in the area indicated by the location definition stored in the storage device in association with the channel set in the tuner. Determining whether or not the character pattern indicated by the character pattern definition stored in the storage device in association with the channel is included;
When the determination unit determines that the character pattern is included in the area, the processing device records the video of the area in the storage device for a predetermined time,
When the recording device performs the recording, the processing device displays a message indicating that there is an emergency broadcast on the display, and displays the video of the area recorded in the storage device on the display. A broadcast display method characterized by the above.