JP2002209171A - Video device with dvd playback function, video signal output device, and video signal output method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video device with a DVD playback function, a video signal output device, and a video signal output method which enable a user to spend a significant time during broadcast of a commercial. SOLUTION: When a video signal based on reception broadcast outputted from a VCR control part is selected by an output selection part 40 and is outputted to a TV device 50, a system controller 60 monitors whether a commercial exists in reception broadcast or not; and when a commercial is inserted, a video signal based on DVD outputted from a DVD control pat 30 is selected by the output selection part 40 and is outputted to the TV device 50. Hence, the user can watch a desired video to spend a significant time during the broadcasting of the commercial.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video device with a DVD playback function, a video signal output device, and a video signal output method.

[0002]

2. Description of the Related Art In a conventional video signal output device, when a television broadcast is received, and a video signal based on the received broadcast is output to a television device for viewing, when a commercial is inserted between main broadcasts, The user watched the commercial and waited for the main broadcast to resume.

[0003]

In the above-described conventional video signal output device, even if the user is not interested in the commercial and is bored until the main broadcast is resumed, the user can watch the commercial. I had to.
A video tape recorder that reproduces a television broadcast recorded while skipping commercials is disclosed in Japanese Patent Application Laid-Open No. H11-162443, but is applied to a case where a television broadcast is received and directly viewed. Not something you can do. The present invention has been made in view of the above problems, and has a DVD playback function, a video signal output device, and a video signal output method capable of allowing a user to spend a meaningful time while a commercial is broadcast. The purpose is to provide.

[0004]

To achieve the above object, according to the present invention, there is provided a tuner for receiving a broadcast signal and outputting an intermediate frequency signal, and providing a predetermined signal to the output intermediate frequency signal. A video IC that performs processing and outputs a video signal, and performs the same signal processing on a video recording signal read from a video tape and outputs the same video signal
And a tape driving mechanism for driving the video tape, and a magnetic head for writing a video signal output from the video IC to the driven video tape or reading the video recording signal from the video tape. A DVD control unit having a VCR control unit, a disk drive that reads digital recording data written on a DVD, and a decoder that performs predetermined signal processing on the read digital recording data and outputs it as a video signal;
A video signal output from the VCR control unit;
An output selection unit that selects one of the video signals output from the D control unit and outputs the video signal to a video output terminal connectable to a video input terminal of the television device;
When a control instruction is output to the DVD control unit and the output selection unit to perform various operation controls, and when the output selection unit selects a video signal based on the broadcast signal output from the VCR control unit, A video intermediate frequency circuit provided in the video IC monitors an audio signal separated from the broadcast signal, and when it detects that the audio signal has changed from a monaural audio signal to a stereo audio signal, the DVD control unit The system includes a system controller that reads digital recording data from a DVD, outputs a video signal, and causes the output selection unit to select the output video signal.

[0005] In the invention according to claim 1 configured as described above, when the tuner receives a broadcast signal and outputs an intermediate frequency signal under the control of the system controller, the video IC outputs a predetermined signal to the output intermediate frequency signal. And outputs a video signal. Then, at the time of recording, the magnetic head writes the output video signal on the video tape while driving the video tape by the tape driving mechanism under the control of the system controller. At the time of reproduction, the magnetic head reads a video recording signal from the video tape while driving the video tape by the tape driving mechanism under the control of the system controller. Here, when a video signal output from the video IC is input to an output selection unit, and under the control of the system controller, a video signal based on the broadcast signal input thereto is selected by the output selection unit. The selected video signal is supplied to a video input terminal of the television device via a video output terminal.

At this time, the system controller monitors an audio signal separated from the broadcast signal by a video intermediate frequency circuit provided in the video IC, and detects that the audio signal has changed from a monaural audio signal to a stereo audio signal. Is detected, the system controller causes the disk drive to read the digital recording data written on the DVD, and causes the decoder to perform predetermined signal processing on the read digital recording data, and outputs the digital recording data as a video signal. Let it. Further, the system controller causes the output selection section to select the output video signal, and the video signal is supplied to the video input terminal of the television device via the video output terminal.

In ordinary television broadcasting, a main broadcast is performed using a monaural audio signal, and a commercial is broadcast using a stereo audio signal. Therefore, by detecting a change from this monaural audio signal to a stereo audio signal, insertion of a commercial is performed. That is, it has been detected. Therefore, in the above-mentioned television device, during the broadcast time of the commercial, the DV
Video output based on the digital recording data read from D is performed. For this reason, the user does not feel bored by being allowed to view an uninteresting commercial, and spends meaningful time watching a desired video output based on the digitally recorded data.

In the first aspect of the present invention, the video signal output device according to the present invention is realized as a video device with a DVD playback function having a specific configuration. However, such a configuration is merely an example. It is also possible to capture a wide range of technologies that are intended. That is, the invention according to claim 2 is a broadcast signal receiving means for receiving a broadcast signal and outputting a first video signal, and a data for reading data written on an optical recording medium and outputting a second video signal. A readout unit, a video signal generation unit capable of receiving the first video signal or the second video signal, and capable of displaying a video based on any of the video signals; Detection means for detecting a commercial contained in a broadcast, and video selection control for performing video display based on the second video signal by the video signal generation means when a commercial is detected by the commercial detection means. Means.

In the invention according to claim 2 configured as described above, the broadcast signal receiving means receives the broadcast signal and outputs a first video signal, and the video signal generation means outputs the first video signal. The input image is displayed based on the first image signal. At this time, when the commercial detecting means detects a commercial included in the broadcast received by the broadcast signal receiving means, the data reading means reads the data written on the optical recording medium and outputs a second video signal. ,
The video selection control means causes the video signal generation means to input the second video signal and display a video based on the second video signal. Therefore, the video based on the second video signal is displayed at the timing when the video based on the first video signal corresponding to the commercial is displayed. That is, in the video output device connected to the video signal output device, the commercial video is not displayed, and the video corresponding to the data written on the optical recording medium is displayed instead. Therefore,
The user does not need to watch uninteresting commercials, but only needs to view desired video based on the data.

[0010] The commercial detecting means may be a means for detecting a commercial included in a broadcast received by the broadcast signal receiving means, and may include an audio signal included in the broadcast signal. A commercial may be detected in accordance with the type of signal, or a commercial may be detected in accordance with the presence or absence of character data included in the broadcast signal. Note that the video selection control means, when a video based on the first video signal is displayed by the video signal generation means, when a commercial is detected by the commercial detection means, the video signal generation means Any device that displays an image based on the second image signal described above may be used, but an additional configuration may be provided to more reliably execute image selection control.

As one example, the invention according to claim 3 is a video signal output device according to claim 2, wherein
The video selection control means includes an elapsed time detection means for detecting an elapsed time since the commercial is detected by the commercial detection means, and the first video signal after the commercial is detected by the commercial detection means. Time setting means for setting a time until the video display is restarted based on the elapsed time detected by the elapsed time detecting means, and the time setting means after the commercial is detected by the commercial detecting means. Until the time set in, the video signal generating means performs video display based on the second video signal. In the invention according to claim 3 configured as described above, the time setting means sets the time from when a commercial is detected by the commercial detection means to when the video display based on the first video signal is restarted. .

When a commercial is detected by the commercial detecting means, the video selection control means sets the above-mentioned image detecting means based on the elapsed time detected by the elapsed time detecting means, after the commercial is detected by the commercial detecting means. Until the time set by the time setting means has elapsed, the video signal generating means displays an image based on the second video signal. For this reason, regardless of whether the commercial detection unit can detect the end of the commercial, the video signal generation unit reliably restarts the video display based on the first video signal after a predetermined time has elapsed, This is useful in that an image based on the second image signal does not remain displayed.

According to another aspect of the present invention, there is provided a broadcast signal receiving means for receiving a broadcast signal and outputting a first video signal; Data reading means for reading data written on a recording medium and outputting a second video signal, and capable of inputting the first video signal and the second video signal, based on a single video signal A video signal generating means capable of simultaneously displaying a plurality of videos based on a single video display or a plurality of video signals, and a commercial detecting means for detecting a commercial included in a broadcast received by the broadcast signal receiving means, When a commercial is detected by the commercial detection means, the video signal generation means simultaneously displays a plurality of videos based on the first video signal and the second video signal. It is constituted comprising a video selection control means for causing. In the invention according to claim 4 configured as described above, the broadcast signal receiving means receives the broadcast signal and outputs a first video signal, and the video signal generation means inputs the first video signal. A single image based on the first image signal is displayed. At this time, when the commercial detecting means detects a commercial included in the broadcast received by the broadcast signal receiving means, the data reading means reads the data written on the optical recording medium and outputs a second video signal. The video selection control means inputs the first and second video signals to the video signal generation means and simultaneously displays a plurality of videos based on the plurality of video signals. For this reason, a plurality of videos based on the first and second video signals are output at a timing at which a video based on the first video signal corresponding to the commercial is output. That is, in the video output device connected to the video signal output device, the commercial video and the video corresponding to the data written on the optical recording medium are simultaneously displayed. Therefore, in case that the commercial detecting means cannot detect the end of the commercial and the video based on the second video signal is continuously displayed, it is possible to confirm that the broadcast program after the commercial is not missed. Useful in that respect.

According to a fourth aspect of the present invention, as an example of a method for simultaneously displaying a plurality of images in the fourth aspect, in the video signal output device according to the fourth aspect, Means for reducing a screen size of the first video signal, superimposing a video based on the reduced first video signal on a video based on the second video signal, And a video based on the second video signal can be displayed simultaneously. In the invention according to claim 5 configured as described above, when the first and second video signals are input, the video signal generation unit reduces a screen size of the first video signal, and The image based on the reduced first image signal is superimposed on the image based on the second image signal. Then, a video of a normal screen size based on the second video signal in which the video based on the reduced first video signal is added to a portion on the screen is displayed. Therefore, the user checks the broadcast status of the commercial on a small screen size while viewing the desired video on a large screen size.

By the way, in the video signal output device, a device for improving usability by executing a control operation desired by the user is particularly useful. As an example, the invention according to claim 6 is the video signal output device according to any one of claims 2 to 5, wherein the data reading means sets a data reading position from the optical recording medium. A first operation receiving means for receiving an operation for reading data from the optical recording medium and outputting the second video signal based on the received operation. In the invention according to claim 6 configured as described above, in the data reading means,
When the first operation receiving means receives an operation for setting a data reading position from the optical recording medium, data is read from the optical recording medium based on the received operation, and the second video signal is read. Output. For this reason,
During the insertion of a commercial, a video based on desired data is output by the video output device.

According to a seventh aspect of the present invention, there is provided a video signal output apparatus according to any one of the second to sixth aspects.
The video selection control means includes second operation receiving means for receiving an operation for setting a time period for displaying a video based on the second video signal, and generating the video signal based on the received operation. The means is configured to display the same image. In the invention according to claim 7 configured as described above, in the video selection control means, the second operation receiving means receives an operation for setting a time zone for displaying a video based on the second video signal. When the predetermined time is reached based on the received operation, the video signal generating means displays the same video. Therefore, the video based on the second video signal is reliably displayed during the insertion of the commercial only by the user setting the time zone in which the insertion of the commercial is expected.

Incidentally, the method for controlling the output of the video signal as described above can be realized not only as a substantial device but also as a method. As an example, the invention according to claim 8 relates to a method for receiving a broadcast signal and displaying a video based on the first video signal output and detecting a commercial included in the received broadcast when the first broadcast is detected. The display of the video based on the video signal is interrupted, and the video based on the second video signal output by reading out the data written on the optical recording medium is displayed. That is, the configuration as the above device is
It can also be realized as a method. It goes without saying that the configurations according to claims 3 to 7 can be similarly applied as a method.

[0018]

As described above, the present invention can provide a video device with a DVD playback function that allows a user to spend a meaningful time while a commercial is broadcast. Further, according to the second aspect of the present invention, it is possible to provide a video signal output device that allows a user to spend a meaningful time while a commercial is broadcast. Furthermore, according to the third to fifth aspects of the present invention, it is possible to more reliably execute the image selection control of the image signal. Furthermore, according to the invention according to claim 6 or claim 7, the usability can be improved. Further, according to the invention according to claim 8, it is possible to provide a video signal output method that allows a user to spend a meaningful time while a commercial is broadcast.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a main configuration of a video device with a DVD playback function according to an embodiment of the present invention. Hereinafter, the description of the audio signal will be omitted, and only the video signal will be described. The video device 10 with a DVD playback function includes a VCR control unit 20 for performing recording and playback on a video tape and receiving a broadcast signal.
A DVD control unit 30 that performs VD reproduction is provided. The VCR control unit 20 and the DVD control unit 30 are connected to an output selection unit 40. In addition, the output selection unit 40 has a video output terminal 4
The video output terminal 41 is connected to the video input terminal of the television device 50. Here, the VCR control section 20 and the DVD control section 30 constitute a broadcast signal receiving means and a data reading means according to the present invention, respectively.

With this configuration, the VCR control unit 20
When the video tape is reproduced, the video recording signal is read out from the video tape and subjected to predetermined signal processing, thereby obtaining a video signal and outputting the video signal to the output selection unit 40. When receiving a broadcast signal, the received broadcast signal is subjected to predetermined signal processing to acquire a video signal and output to the output selection unit 40.
And write it to a video tape as needed. Here, the video signal output from the VCR control unit 20 to the output selection unit 40 constitutes the first video signal according to the present invention. On the other hand, the DVD control unit 30
By reading digital recording data from the DVD and performing predetermined signal processing, a video signal is obtained and output to the output selection unit 40. Here, the video signal output from the DVD control unit 30 to the output selection unit 40 constitutes the second video signal according to the present invention. Then, the output selection unit 40 outputs the VC
Video signal supplied from R control unit 20 and DVD control unit 3
Any of the video signals supplied from 0 is selected and output to the video output terminal 41. Therefore, the video output terminal 41
In the television device 50 connected to the
Video output based on the video signal output from 0 is performed. In this sense, the output selection unit 40 constitutes a video signal generation unit according to the present invention.

FIG. 2 is a block diagram showing a main configuration of the VCR control unit 20. As shown in FIG.
The control unit 20 includes a tuner 21 and a video IC 22. When the tuner 21 receives a broadcast signal and outputs a corresponding intermediate frequency signal, the video IC 22 performs predetermined signal processing on the output intermediate frequency signal. And outputs it to the output selection unit 40. The VCR control unit 20 is provided with various magnetic heads 23, a tape drive mechanism 24, and the like.
2 is recorded on a video tape, or a video recording signal recorded on the video tape is output to the video IC 22 and converted into a video signal.

FIG. 3 is a block diagram showing the main configuration of the DVD control unit 30. In FIG. 1, a DVD control unit 30 includes a disk drive 31 that reads digital recording data such as moving image / audio information and subtitles written on a DVD as an optical recording medium. Disk drive 31
Is a servo signal processing unit 33 that drives the optical pickup 32 to a predetermined position by sending a control signal to a focus servo or the like, and an RF that amplifies a read signal from the optical pickup 32 and generates a predetermined control signal. It comprises an amplifier 34 and a signal processing section 35 for restoring digital data recorded from the amplified signal, converting it into digital recording data and outputting the digital recording data, and outputs digital recording data recorded on a DVD. .

The digital recording data output from the disk drive 31 is input to a decoder 36. The decoder 36 performs a predetermined signal processing on the digital recording data and outputs the digital recording data to the output selection section 40 as a video signal. FIG.
As shown in FIG. 3, the VCR control unit 20, the DVD control unit 30, and the output selection unit 40 are connected to a system controller 60, respectively.
By outputting a control instruction signal to 0 and the output selection unit 40, various operations are executed. That is, VC
The R control unit 20 outputs a video signal based on the received broadcast,
Video recording and video playback operations are executed, and the DVD control unit 30 executes a DVD playback operation. In addition, the output selection unit 40 performs an operation of selecting a video signal to be output.

Incidentally, the system controller 60 is connected to the VCR control unit 2.
In the case where the television apparatus 50 connected to the video output terminal 41 receives the broadcast signal and causes the output selection section 40 to output the video signal based on the broadcast signal and the output selection section 40 to output the video signal, Since the video based on the received broadcast is output, the user can view the main broadcast and the commercial included in the received broadcast. Here, if the user wants to view the recorded broadcast reproduced by the VCR control unit 20 and does not want to view the commercial part, he or she can fast-forward the video tape to view only the main broadcast. Although it is possible to watch broadcasts received by the tuner directly, one would spend a boring time while the commercials are being broadcast.

Therefore, the system controller 60 according to this embodiment is
Thus, the user is allowed to view an image based on the digitally recorded data read from the DVD during the commercial broadcasting time so that the user can use the time effectively without being bored during the commercial. FIG. 4 is a flowchart showing the control operation of the system controller 60 during the commercial broadcast. As shown in the figure, the system controller 60 causes the VCR control unit 20 to output a video signal based on the received broadcast, and allows the output selection unit 40 to select the video signal. It is monitored whether the audio signal separated by the frequency circuit is a stereo audio signal or a monaural audio signal (steps S100, S110). Usually, in television broadcasting, as shown in FIG. 5, in many cases, main broadcasting is performed with a monaural audio signal and commercials are broadcast with a stereo audio signal. Therefore, by monitoring the type of the audio signal,
This is because it can be determined whether the program is being broadcast or a commercial is being broadcast.

Here, when the audio signal separated by the video intermediate frequency circuit changes from a monaural audio signal to a stereo audio signal, the system controller 60 determines that the main broadcast has ended and a commercial has started, and D to the control unit 30
VD playback is started, and the output selection unit 40
The video signal from the D control unit 30 is selected (step S
120-S140). When the audio signal separated by the video intermediate frequency circuit changes from a stereo audio signal to a monaural audio signal, the system controller 60 determines that the commercial has ended and the main broadcast has been resumed. DVD playback is terminated, and the output selection unit 40
A video signal from the control unit 20 is selected (step S1).
20, S150, S160).

The system controller 60 holds the DVD playback position data set by the operation on the operation panel or the remote control transmitter in the built-in RAM 61 shown in FIG. 1, and causes the DVD controller 30 to execute DVD playback. Then, it reads the reproduction position data of the DVD from the built-in RAM 61 and transmits it to the DVD control unit 30. For this reason, during the broadcast of the commercial, the video signal based on the digital recording data recorded at the reproduction position desired by the user is output to the video output terminal 4.
1 is output. Accordingly, the system controller 60 that detects the insertion of a commercial and controls the output selection unit 40 and that receives the reproduction position setting operation and holds the reproduction position data of the DVD includes the commercial detection unit, the video selection control unit, and the It constitutes one operation receiving means.

In the above description, whether a received broadcast contains a monaural audio signal or a stereo audio signal is monitored to determine whether the broadcast is during a commercial broadcast. Such a configuration is merely an example, and the system controller 60 can also detect a commercial by another method. For example, as shown in FIG. 6, in a normal television broadcast, a main broadcast is performed while superimposing text data on a part of a broadcast signal. Therefore, it is monitored whether or not the text data is superimposed on a broadcast signal. Thus, commercial detection may be performed. That is, in FIG. 5, the monitoring of the character data may be performed in step S110, and the control of steps S130 to S160 may be executed in step S120 according to the switching of the presence or absence of the character data.

Further, in case that it is difficult to detect a commercial, etc., it is possible to perform DVD reproduction for a predetermined time set in advance. In this case, as shown in FIG. 7, the system controller 60 writes the DVD playback time set by the operation on the operation panel or the remote control transmitter into the built-in RAM 61, and when the commercial starts,
The written DVD playback time is read, and detection of the elapsed time is started by a built-in timer circuit. Also, DV
The D control unit 30 starts DVD playback, and the output selection unit 40
To select a video signal output from the DVD control unit 30 (steps S200, S210).

When the elapsed time from the start of the commercial reaches the read DVD playback time, the DVD control unit 30 stops the DVD playback, and the output selection unit 40 sends the DVD selection unit 40 the VCR control unit 20. An output video signal is selected (steps S220, S230). Therefore,
Even if the end timing of the commercial cannot be detected, the output selection unit 40 sets the DV over the set time or longer.
It is possible to prevent the user from overlooking the main broadcast resumed after the commercial without continuously selecting the video signal output from the D control unit 30. Here, the system controller 60 that sets the DVD playback time and detects the elapsed time since the start of the commercial,
The elapsed time detecting means and the time setting means according to the present invention are constituted.

Further, as a device for preventing the oversight of the main broadcast, it is possible to use a divided screen of the main image of the normal screen size and the sub-image of the reduced screen size in the television device 50. That is, in the output selection unit 40, as shown in FIG. And a video superimposing unit 40b for superimposing the video based on the reduced video signal from the VCR control unit. With this configuration, the system controller 60 normally sends the VCR control unit 20 to the output selection unit 40 during the main broadcast.
Select the video signal output from the video output terminal 41
Output from Therefore, in the television device 50 connected to the video output terminal 41, a video based on the broadcast signal received by the tuner 21 is output as a normal screen size.

Here, as shown in FIG.
When detecting that a commercial broadcast has started, the DVD controller 30 causes the DVD controller 30 to execute DVD playback and causes the output selector 40 to select a video signal output from the DVD controller 30 (steps S300 to S320). And VCR
The video based on the video signal output from the control unit 20 is reduced by the screen size reduction unit 40a, and the video based on the video signal whose screen size is reduced by the video superimposition unit 40b is converted from the video from the DVD control unit 30. It is superimposed on the video based on the signal (step S330).

Then, a video signal on which the above video is superimposed is output from the video output terminal 41 from the output selection unit 40. For this reason, in the television device 50, a video corresponding to DVD playback is output at a normal screen size, and a commercial video is output at a reduced screen size using a part of the video. Also, upon detecting the end of the commercial broadcast, the system controller 60 outputs the VC to the output selection unit 40.
The output from the R control unit 20 is again selected, and D
The DVD playback is stopped by the VD control unit 30, and the reduction of the screen size in the screen size reduction unit 40a and the superimposition of the video in the video superimposition unit 40b are ended (steps S340 to S370).

Accordingly, only the video signal corresponding to the main broadcast output from the VCR control unit 20 is output from the output selection unit 40 from the video output terminal 41, and the television device 5
Output video to 0. When using split screen,
It is also possible for the user to output a video signal output from the VCR control unit 20 at a desired timing in a normal screen size. That is, a video switching button is provided on an operation panel or the like connected to the system controller 60, and when the pressing operation of the video switching button is detected, the video switching button is output from the VCR control unit 20 in the same manner as when the end of the commercial broadcast is detected. May be selected by the output selection unit 40. This is useful, for example, when the video corresponding to the DVD reproduction is switched to the main broadcast at an incomplete portion.

Further, if it is known in advance that a commercial will be inserted at a predetermined time, a reservation function is provided to the system controller 60, and a video signal relating to a reproduced video of a DVD is substituted for a commercial video at a predetermined time zone. Can also be output. FIG. 10 shows a control procedure in the system controller 60 at this time. When the playback time zone of the DVD is set by the operation on the operation panel or the remote control transmitter, the system controller 60 as the second operation receiving means according to the present invention receives this setting operation,
The reproduction time zone is written in the file (steps S400, S41).
0).

The system controller 60 holds the time by a built-in timer circuit, periodically reads the reproduction time zone from the built-in RAM, compares the two, and when this time becomes the reproduction start time, the DVD control unit 30 starts DVD playback, and causes the output selection unit 40 to select a video signal output from the DVD control unit 30 (steps S420 to S44).
0). When the end time of the reproduction time zone is reached, D
The DVD playback is stopped by the VD control unit 30 and the output selection unit 4
0 selects a video signal output from the VCR control unit 20 (steps S450, S460).

Accordingly, even in a situation where insertion of a commercial cannot be detected, the video signal output from the DVD control unit 30 is output from the video output terminal 41, and the output of the commercial video in the television device 50 is prohibited.
DVD images can be output reliably. In the present embodiment, since the type of digital recording data written on the DVD to be reproduced by the DVD control unit 30 is not limited,
The data may be educational video data, environmental video data, or the like. However, if the video of the divided screen can be switched at a desired timing, particularly, video output based on the educational video data is performed. This is suitable for viewing.

Next, the operation when a commercial is inserted during reception of a television broadcast will be described. VCR
The control unit 20 receives a broadcast signal by the tuner 21 and outputs a video signal based on the received broadcast signal to the output selection unit 40.
When the output selection unit 40 selects a video signal output from the VCR control unit 20, the system controller 60 converts the audio signal separated by the video intermediate frequency circuit provided in the video IC 22 into a stereo audio signal. Whether or not the received broadcast is a monaural audio signal is checked, and it is determined that the received broadcast is a main broadcast by confirming that the separated audio signal is a monaural audio signal.

Here, when a commercial is inserted into the received broadcast, the separated audio signal changes from a monaural audio signal to a stereo audio signal. Therefore, Syscon 6
0 detects this change to the stereo audio signal and determines that the broadcast of the commercial has started. Then, the built-in RAM 61
The reproduction position data is read out from the DVD, and an instruction to reproduce the DVD is output to the DVD control unit 30 together with the reproduction position data. Further, the output selector 40 outputs a control instruction to select a video signal output from the DVD controller 30. Therefore, the DVD control unit 30 specifies the corresponding playback position based on the playback position data input from the system controller 60, and starts DVD playback. On the other hand, the output selection unit 4
0 switches the input of the video signal from the VCR control unit 20 to the DVD control unit 30, and selects the video signal output from the DVD control unit 30.

Therefore, the video signal output from the DVD control unit 30 is output to the video output terminal 41 via the output selection unit 40.
And output to the video input terminal of the television device 50. For this reason, the television device 50 has a DV
An image based on the digitally recorded data read from D is output, and the user can spend a significant amount of time without boring during the commercial broadcast time by watching the desired image. Thereafter, the system controller 60 continues to monitor the audio signal separated from the broadcast signal, and detects that this audio signal has changed from a stereo audio signal to a monaural audio signal, thereby determining that the commercial broadcast has ended.

Then, the DVD control unit 30
Is output, and VC is output to the output selection unit 40.
It outputs a control instruction to select a video signal output from R control section 20. For this reason, the DVD control unit 30
The VD reproduction is stopped, and the output selection unit 40 switches the input of the video signal from the DVD control unit 30 to the VCR control unit 20, and selects the video signal output from the VCR control unit 20. Therefore, the video signal output from the VCR control unit 20 is output to the video output terminal 41 via the output selection unit 40, and is supplied to the video input terminal of the television device 50. For this reason, the video based on the restarted main broadcast is output to the television device 50, and the user can view the continuation of the main broadcast.

As described above, in the present embodiment, as shown in FIG. 11, when a video signal based on a received broadcast output from the VCR control unit 20 is selected by the output selection unit 40 and output to the television device 50, 60 monitors the presence or absence of a commercial in the received broadcast, and when a commercial is inserted, causes the output selection unit 40 to select the video signal based on the DVD output from the DVD control unit 30 and output the video to the television device 50. . For this reason, the user can watch and enjoy a desired video during the broadcast of the commercial, and spend significant time.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a main configuration of a video device with a DVD playback function according to an embodiment;

FIG. 2 is a block diagram illustrating a main configuration of a VCR control unit.

FIG. 3 is a block diagram illustrating a main configuration of a DVD control unit.

FIG. 4 is a flowchart illustrating a procedure of a control operation in the system controller.

FIG. 5 is an explanatory diagram illustrating a change in an audio signal included in a broadcast signal.

FIG. 6 is an explanatory diagram showing a change in the presence or absence of character data in a broadcast signal.

FIG. 7 is a flowchart illustrating a procedure of a control operation according to a modification.

FIG. 8 is a block diagram illustrating a configuration of an output selection unit according to another modification.

FIG. 9 is a flowchart illustrating a procedure of a control operation according to a modification of FIG. 8;

FIG. 10 is a flowchart illustrating a procedure of a control operation according to another modification.

FIG. 11 is a block diagram for explaining an outline of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Video apparatus with DVD reproduction function 20 ... VCR control part 21 ... Tuner 22 ... Video IC 23 ... Magnetic head 24 ... Tape drive mechanism 30 ... DVD control part 31 ... Disk drive 32 ... Optical pickup 33 ... Servo signal processing part 34 ... RF amplifier 35 ... Signal processing unit 36 ... Decoder 40 ... Output selection unit 40a ... Screen size reduction unit 40b ... Video superimposition unit 41 ... Video output terminal 50 ... Television device 60 ... System controller 61 ... Built-in RAM

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/93 H04N 5/93 E 5C063 7/08 7/08 Z 7/081 F-term (reference) 5C018 FA03 FA04 FB03 5C025 AA30 BA28 CA06 CB10 DA08 5C026 DA12 DA28 EA10 5C052 AA04 AC10 CC01 CC20 DD04 DD10 5C053 FA06 FA22 FA24 HA40 JA15 KA24 LA06 LA07 5C063 AA01 AB01 AB03 AC01 AC06 CA23 CA29 CA36 DA03 DB13 DB

Claims (8)

[Claims] 1. A tuner for receiving a broadcast signal and outputting an intermediate frequency signal, performing predetermined signal processing on the output intermediate frequency signal to output a video signal, and a video recording signal read from a video tape. A video IC that performs the same signal processing to output the same video signal, a tape drive mechanism that drives the video tape, and writes a video signal output from the video IC to the driven video tape, or A VCR control unit having a magnetic head for reading the video recording signal from the video tape, a disk drive for reading digital recording data written on a DVD, and performing predetermined signal processing on the read digital recording data. A DVD control unit having a decoder for outputting a video signal as a video signal; An image signal, the DV
An output selection unit that selects any one of the video signals output from the D control unit and outputs the video signal to a video output terminal connectable to a video input terminal of the television device; the VCR control unit, the DVD control unit, and the output selection Output various control instructions to the
When a video signal based on the broadcast signal output from the VCR control unit is selected by the output selection unit, an audio signal separated from the broadcast signal by a video intermediate frequency circuit provided in the video IC is selected. When the monitor detects that the audio signal has changed from a monaural audio signal to a stereo audio signal, it causes the DVD control unit to read digitally recorded data from the DVD and output a video signal. A video device with a DVD playback function, comprising: a system controller to be selected by the output selection unit. 2. A broadcast signal receiving means for receiving a broadcast signal and outputting a first video signal; a data reading means for reading data written on an optical recording medium and outputting a second video signal; A video signal generating means capable of inputting the first video signal or the second video signal and capable of displaying a video based on one of the video signals; and a broadcast signal received by the broadcast signal receiving means. Commercial detection means for detecting commercials, and video selection control means for performing video display based on the second video signal by the video signal generation means when a commercial is detected by the commercial detection means. A video signal output device characterized by the above-mentioned. 3. The video signal output device according to claim 2, wherein the video selection control means detects an elapsed time since a commercial is detected by the commercial detection means; Time setting means for setting a time period from when the commercial is detected by the commercial detection means to when the video display based on the first video signal is restarted, wherein the elapsed time detected by the elapsed time detection means is provided. And causing the video signal generation means to perform video display based on the second video signal until the time set by the time setting means elapses after the commercial is detected by the commercial detection means. A video signal output device characterized by the above-mentioned. 4. A broadcast signal receiving means for receiving a broadcast signal and outputting a first video signal; a data reading means for reading data written on an optical recording medium and outputting a second video signal; A video signal generator capable of inputting the first video signal and the second video signal and capable of displaying a single video based on a single video signal or simultaneously displaying a plurality of videos based on a plurality of video signals Means, a commercial detection means for detecting a commercial included in a broadcast received by the broadcast signal receiving means, and the first video signal generation means when the commercial is detected by the commercial detection means. A video signal output device comprising: a video signal and video selection control means for simultaneously displaying a plurality of videos based on the second video signal. 5. The video signal output device according to claim 4, wherein the video signal generating means reduces a screen size of the first video signal and a first video signal having the reduced screen size. A video signal output device capable of superimposing a video based on a video signal on a video based on the second video signal and simultaneously displaying a video based on the first and second video signals. 6. The video signal output device according to claim 2, wherein said data read means receives an operation for setting a data read position from said optical recording medium. A video signal output device for reading data from the optical recording medium based on the received operation and outputting the second video signal. 7. The video signal output device according to claim 2, wherein the video selection control means sets a time period for displaying a video based on the second video signal. A video signal output device, comprising: a second operation receiving unit that receives the operation of (a), and causing the video signal generating unit to display the same image based on the received operation. 8. When displaying a video based on a first video signal output after receiving a broadcast signal, displaying a video based on the first video signal when a commercial included in the received broadcast is detected. And outputting an image based on a second image signal output by reading data written on the optical recording medium and outputting the data.