JP2001298672A - Receiving device, its method and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit a viewer to view a commercial message which is independently broadcasted from a TV broadcasting by replacing or inserting it in the midst of the TV broadcasting. SOLUTION: In a receiving device, a front end part 11 or a demultiplexer 15 process a program signal and a front end part 19 or a demultiplexer 21 process a CM signal. A switch 22 is changed-over by the control of a control part 23 based on a changeover signal which is comprised in the CM signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving apparatus and method, and a recording medium. For example, the present invention relates to a receiving apparatus and method suitable for use when a separately broadcasted commercial is inserted during reproduction of a television broadcast. And a recording medium.

[0002]

2. Description of the Related Art Currently, commercials of sponsors are inserted in the middle of a program (hereinafter also referred to as a program) in a television broadcast of a private broadcast station which can be viewed free of charge. Therefore, the viewer also watches the commercial when watching the program. In other words,
It can be said that the program is broadcast free of charge on condition that the viewer watches the commercial.

By the way, there is a service that provides a personal computer free of charge on condition that a commercial as web contents distributed via the Internet is viewed on a personal computer.

[0004]

However, it is impossible for a conventional television receiver or set-top box to intentionally allow a viewer to view a specific commercial. Therefore, a service of providing a television receiver or the like to a viewer for free or at a low price has not been realized on condition that a predetermined commercial is viewed.

[0005] The present invention has been made in view of such a situation, and allows a viewer to view or replace a commercial broadcast independently of a television broadcast by replacing or inserting it into the middle of the television broadcast. The purpose is to:

[0006]

A receiving apparatus according to the present invention comprises: a first obtaining means for obtaining a broadcast signal; a second obtaining means for obtaining a predetermined information signal different from the broadcast signal; Reproducing means for reproducing the broadcast signal obtained by the obtaining means or the predetermined information signal obtained by the second obtaining means; detecting means for detecting the switching information included in the predetermined information signal obtained by the second obtaining means; , According to the detection result of the detection means,
Switching means for switching a reproduction target of the reproduction means to one of a broadcast signal acquired by the first acquisition means and a predetermined information signal acquired by the second acquisition means.

[0007] The receiving apparatus of the present invention may further include input means for inputting an AV signal and switching information generated by another electronic device, wherein the switching means responds to the switching information input by the input means. The reproduction target of the reproduction means can be switched to one of an AV signal generated by another electronic device input by the input means or a predetermined information signal obtained by the second obtaining means.

[0008] The receiving method of the present invention includes a first obtaining step of obtaining a broadcast signal, a second obtaining step of obtaining a predetermined information signal different from the broadcast signal, and an obtaining step of the first obtaining step. A reproduction step of reproducing the obtained broadcast signal or the predetermined information signal obtained in the processing of the second obtaining step, and detecting switching information included in the predetermined information signal obtained in the processing of the second obtaining step. In accordance with the detection step and the detection result in the processing in the detection step, the object of the reproduction processing in the reproduction step is obtained by the broadcast signal obtained in the processing in the first obtaining step or in the processing in the second obtaining step And a switching step of switching to any one of the predetermined information signals.

[0009] The program of the recording medium of the present invention comprises a first obtaining step of obtaining a broadcast signal, a second obtaining step of obtaining a predetermined information signal different from the broadcast signal, and a process of the first obtaining step. A reproduction step of reproducing the broadcast signal acquired in the step (a) or the predetermined information signal acquired in the processing of the second acquisition step; and switching information included in the predetermined information signal acquired in the processing of the second acquisition step. According to the detection step to be detected and the detection result in the processing in the detection step, the target of the reproduction processing in the reproduction step is the broadcast signal acquired in the processing in the first acquisition step, or the processing in the second acquisition step. And a switching step of switching to any one of the predetermined information signals obtained in (1).

[0010] In the receiving apparatus and method of the present invention, and a program of a recording medium, a broadcast signal is obtained, a predetermined information signal different from the broadcast signal is obtained, and the obtained broadcast signal or the obtained predetermined signal is obtained. The information signal is reproduced. Further, the switching information included in the obtained predetermined information signal is detected, and in response to the detection result, the target of the reproduction process is any one of the obtained broadcast signal or the obtained predetermined information signal. Is switched to.

[0011]

FIG. 1 shows a configuration example of a broadcasting system to which the present invention is applied. In this broadcasting system, the receiving device 1 is provided to a viewer at no cost or at a low price and is installed at the viewer's home by investing in a commercial orderer (a company or the like) of a commercial broadcasted from the CM broadcasting device 5. It is.

The receiving device 1 processes a program signal and a CM signal input from the antenna 2 and outputs the obtained video signal and audio signal to the display 3. Specifically, the receiving device 1 receives a normal television broadcast wave (corresponding to a program signal wave from the program broadcast device 4), outputs a corresponding video signal and audio signal to the display 3, and A commercial such as a sponsor of a program inserted in the middle of a television broadcast program is replaced with another commercial independent of the television broadcast (corresponding to a CM signal from the CM broadcast apparatus 5). Alternatively, another commercial independent of the television broadcast is inserted into the television broadcast at a predetermined timing and output to the display 3.

The antenna 2 down-converts the program signal wave transmitted by the program broadcasting device 4 and the CM signal wave transmitted by the CM broadcasting device 5, and outputs the obtained program signal and CM signal to the receiving device 1. . The display 3 displays a video signal input from the receiving device 1 and reproduces an audio signal.

The program broadcasting device 4 is provided, for example, in a television broadcasting station, and multiplexes video signals and audio signals of a plurality of television broadcasting programs (main part of a program and commercials of a program sponsor) to multiplex the program. Transmit as a signal wave.

The CM broadcasting device 5 broadcasts only commercials of companies and the like that have invested in providing the receiving device 1 to viewers. A plurality of commercials (for example, commercials for children, commercials for young people, Video signals and audio signals of commercials for adults and the like are multiplexed and transmitted as a CM signal wave. The CM broadcast device 5 also receives and monitors the program signal wave transmitted by the program broadcast device 4, and converts the CM signal wave into a CM signal wave based on the timing at which commercials such as program sponsors included in the program signal are started and the contents of the program. A switching signal for instructing the display timing of the corresponding commercial (timing to be displayed on the display 3 at the viewer's home) is generated and packetized, and transmitted on the CM signal wave.

Next, an example of the configuration of the receiving apparatus 1 will be described with reference to FIG.
This will be described with reference to FIG. The front end unit 11 outputs a program (program) designated by the user from the output of the antenna 2.
A packet stream including the video signal and the audio signal of the PID is extracted and a PID (Packet Identification)
Output to The PID parser 12 includes a front end unit 11
Based on the PID of each packet constituting the packet stream input from the, only packets related to the program specified by the user are selected and output to the FIFO memory 13.

The FIFO memory 13 holds the packets input from the PID parser 12 for a predetermined time under the control of the control unit 23, and outputs the packets to the descrambler 14 in the same order as the held order. Note that the capacity of the FIFO memory 13 is at least the time required from when the CM broadcasting device 5 receives the program signal transmitted by the program broadcasting device 4 to when the switching signal is transmitted based on the content thereof. It is necessary to have a capacity capable of storing the amount of data transmitted as a program signal.

The descrambler 14 descrambles the packet input from the FIFO memory 13 and outputs the descrambled packet to the demultiplexer 15. The demultiplexer 15
The information used by the descrambler 14 to release the scramble is acquired and supplied to the descrambler 14 via the control unit 23. The demultiplexer 15 also outputs the descrambled packet input from the descrambler 14 to the switch 22.

The AV decoder 16 decodes the packet input from the switch 22, and outputs the obtained digital video signal and audio signal to the video encoder 17 or the audio D / A converter 18, respectively. The video encoder 17 converts a digital video signal input from the AV decoder 16 into a signal (for example, NTSC (N
a Television System Committee) analog video signal) and output. The audio D / A converter 18 converts a digital audio signal input from the AV decoder 16 into an analog audio signal and outputs it to a subsequent stage.

The front end unit 19 extracts a packet stream of a CM signal from the output of the antenna 2 and
Output to the memory 20. The FIFO memory 20 includes a control unit 23
According to the control from the control unit 2, the control unit 2 holds the packet stream of the CM signal input from the front end unit 19.
According to the control from No. 3, the packets are output to the demultiplexer 21 in the same order as the held order. Note that the PID of the packet input to the FIFO memory 20 and the PID of the output packet are monitored by the control unit 23.

The demultiplexer 21 is a FIFO memory 20
The receiver separates the packet stream of the CM signal input from the switch 22 into individual packets, and outputs only the commercial (to be described later) packets to be viewed by the user of the receiver 1 to the switch 22.

The demultiplexer 21 further detects a switching signal included in the CM signal and notifies the control unit 23 when the FIFO memory 20 is not provided.

The switch 22 outputs a packet of a program signal input from the demultiplexer 15 or a packet of a CM signal from the demultiplexer 21 to the AV decoder 16 under the control of the control unit 23. Note that the switch 22 is normally switched so that the output from the demultiplexer 15 is supplied to the AV decoder 16.

The control unit 23 controls the drive 24 to
Magnetic disk 25, optical disk 26, magneto-optical disk 2
7 or a control program stored in the semiconductor memory 28, and controls each unit of the receiving device 1 based on the read control program and a channel selection operation or the like input by a user.

For example, in a normal case (when it is determined that the switching signal has not been received), the control unit 23 controls the switch 22 so that the output from the demultiplexer 15 is supplied to the AV decoder 16. The control unit 23
Switches the switch 22 so that the output from the demultiplexer 21 is supplied to the AV decoder 16 when it is determined that the switch signal has been received.

Next, the receiving process of the receiving apparatus 1 will be described with reference to the flowchart of FIG. This receiving process is started when the power of the receiving device 1 is turned on.

In step S1, a commercial (CM) between the first half (program 1-1) and the second half (program 1-2) of a schedule as shown in FIG.
1), and a program signal wave transmitted from the program broadcasting device 4 in a commercial (CM2) at the end of the program) and a schedule as shown in FIG. , C
M2) can be replaced with three types of commercials (replacement CM1-1 to CM-1-3 and replacement C
M2-1 to 2-3) are multiplexed), and the reception of the CM signal wave transmitted from the CM broadcasting device 5 is started by the antenna 2. The program signal and the CM signal down-converted by the antenna 2 are supplied to the receiving device 1 as an antenna output.

In step S2, a program signal (corresponding to a normal television broadcast wave) is reproduced. That is, the packet stream including the video signal and the audio signal of the program specified by the user is extracted from the antenna output by the front end unit 11. From the extracted packet stream, only packets related to the program specified by the user are selected by the PID parser 12, and are held by the FIFO memory 13 for a predetermined time and sequentially output. The packet output from the FIFO memory 13 is descrambled by the descrambler 14, input to the AV decoder 16 via the demultiplexer 15 and the switch 22, and is decoded. The obtained digital video signal and audio signal are Each is processed by the video encoder 17 or the audio D / A converter 18 and output to the display 3.

In parallel with the reproduction processing of the program signal by the front end section 11 and the like, the front end section 19 extracts a packet stream of the CM signal from the antenna output and stores it in the FIFO memory 20. The control unit 23 monitors the PID of the held CM signal packet.

At this time, the CM broadcasting device 5 is transmitting the CM signal wave and receiving the program signal wave,
The contents of the program signal are monitored, for example, as shown in FIG.
When it changes to 1, the change is detected and the switching signal is transmitted on the CM signal wave. Similarly, when the content of the program signal changes from program 1-2 to CM2, a switching signal is transmitted.

It should be noted that the CM broadcasting device 5 is the replacement CM 1
-1 to 1-3 and replacement CMs 2-1 to 2-
The timing of transmitting the video signal and the audio signal of No. 3 as CM signal waves does not need to be transmitted simultaneously with CM1 or CM2, as shown in FIG. 4B, and may be transmitted earlier.

In step S3, the control unit 23
Based on the PID of the packet of the CM signal input to the FO memory 20, it is determined whether or not a switching signal has been received from the CM broadcasting device 5, and the processing in steps S2 and S3 is performed until it is determined that the switching signal has been received. repeat. Thereby, the video and audio of the television broadcast (the video and audio corresponding to the program signal wave from the program broadcasting device 4) are reproduced from the display 3 with a delay by the time held in the FIFO memory 13. Will be.

If it is determined in step S3 that the switching signal has been received from the CM broadcasting device 5, the process proceeds to step S4.

In step S4, the CM signal from the CM broadcasting device 5 is reproduced. That is, under the control of the control unit 23, the packet streams held in the FIFO memory 20 are sequentially output to the demultiplexer 21. In the demultiplexer 21, the input packet stream is separated into each packet, and among the packets of the obtained commercials (replacement CMs 1-1 to 1-3), a commercial suitable for the user of the receiving device 1 (in advance, (Which is selected based on the input information such as the age of the user) is output to the switch 22. At this time, the switch 22 is controlled by the control unit 23 to
Switching is performed so that the output from the demultiplexer 21 is supplied to the AV decoder 16.

On the other hand, at this time, the front end unit 11 to the demultiplexer 15 output a commercial packet included in the program signal to the switch 22. At this time, as described above, the switch 22 Is switched so as to be supplied to the AV decoder 16 and is not output to the AV decoder 16 and subsequent stages (resultantly, commercial packets included in the program signal are discarded).

Therefore, the commercial packet is A
The digital video signal and the audio signal obtained by being input to the V decoder 16 and decoded are converted into a video encoder 17 or an audio D / A converter 18, respectively.
And output to the display 3. As a result, the replaced commercial video and audio are reproduced from the display 3.

In step S5, the control unit 23
PID of CM signal packet output from FO memory 20
, It is determined whether or not the replaced commercial being played has ended, and the processing of steps S4 and S5 is repeated until it is determined that the replaced commercial being played has ended.

If it is determined in step S5 that the replaced commercial being played has ended, the process returns to step S2, and the subsequent processing is repeated.

However, since the reproduction time of the replaced commercial (for example, replacement CM1-1) does not always match the reproduction time of the replaced commercial (for example, CM1), the reproduction of the replacement CM1-1 has been completed. Sometimes, the packet of the program 1-2 may not have been received yet. In this case, the replacement CM
The program waits in a state where the last image 1-1 is displayed, and returns to step S2 after receiving the packet of the program 1-2.

Conversely, when the reproduction of the replacement CM 1-1 is not completed, the packet of the program 1-2 may be received. In this case, the replacement CM1-
To prevent the received packet of the program 1-2 from being discarded until the reproduction of the first CM 1 is completed, the packet is retained in the FIFO memory 13, and after the reproduction of the replacement CM1-1 is completed, the process returns to the step S2. .

As a result, the program signal (corresponding to a normal television broadcast wave) starts to be reproduced again. This receiving process is continued until the power of the receiving device 1 is turned off.

By the above-described reception processing, the display CM 3 is replaced on the display 3 between the first half (program 1-1) and the second half (program 1-2) of the program as shown in FIG. A replacement CM1-1 (showing a predetermined one of the replacement CMs 1-1 to 1-3) is displayed, and at the end of the program, a replacement CM2 (showing a predetermined one of the replacement CMs 2-1 to 2-3) is reproduced. Will be.

When a broadcasting system to which the present invention is applied is used, the program broadcasting device 4 as shown in FIG.
To the program signal (program 2) into which no commercials are inserted, from the CM broadcasting device 5 (insertion CMs 1-1 to 1-3 and insertion CMs 2-1 to 2-3 shown in FIG. 5B). ) And insert it as shown in Fig. 5 (C).
(The programs 2-1 to 2-3 mean the front part, the middle part, or the rear part of the program 2 divided into three parts.) .

However, to realize this, the CM broadcasting device 5 receives and monitors the program signal, and
It is necessary to output a switching signal at an appropriate timing based on the contents of the above. In response to the switching signal, in the receiving apparatus 1, as shown in FIG. 5C, the program 2 which is the content of the program signal is changed to the programs 2-1 to 2-3.
Will be divided into

As described above, according to the broadcasting system to which the present invention is applied, a predetermined commercial can be intentionally viewed, so that a service that provides the receiver 1 free or cheap to the viewer can be provided. Can be realized.

Next, another example of the configuration of the receiving apparatus 1 is shown in FIGS. Note that blocks that function similarly to the blocks of the configuration example shown in FIG. 2 are denoted by the same reference numerals.

In the configuration example shown in FIG. 6, the front end unit 11 extracts a packet stream including a video signal and an audio signal of a program (program) specified by the user from the output of the antenna 2 and outputs the packet stream to the descrambler 51. Is done. The front end unit 19 extracts a packet stream of the CM signal from the output of the antenna 2 and
It is output to the D parser 53.

The descrambler 51 descrambles the packet stream input from the front end unit 11 by using the descramble information generated by the demultiplexer 52 and supplied via the control unit 23. It is output to the parser 53 and the demultiplexer 52. In the demultiplexer 52, information for descrambling used by the descrambler 51 is generated and supplied to the descrambler 51 via the control unit 23.

In the PID parser 53, the descrambler 51
Only the packets related to the program specified by the user are selected and output to the hard disk drive (HDD) 54 on the basis of the PID of each packet constituting the packet stream of the program signal input from. In the PID parser 53, based on the PID of each packet constituting the packet stream of the CM signal input from the front end unit 19, only packets related to commercials to be viewed by the user are selected and output to the hard disk drive 54. .

In the hard disk drive 54, the packet stream of the program signal input from the PID parser 53 (unnecessary packets have been removed) and C
Each of the M signal packet streams (unnecessary packets have been removed) is stored. The packet stream of the program signal and the packet stream of the CM signal recorded on the hard disk drive 54 are transmitted to the control unit 2.
3 is supplied to the demultiplexer 15 under the control of
In the demultiplexer 15, the packet stream is separated into each packet and output to the AV decoder 16.

The AV decoder 16 decodes the packet from the demultiplexer 15 and outputs the obtained digital video signal and audio signal to the video encoder 17 or the audio D / A converter 18, respectively. In the video encoder 17, the AV decoder 16
Is converted to a signal suitable for a subsequent device and output. Audio D / A
The converter 18 converts the digital audio signal input from the AV decoder 16 into an analog audio signal and outputs the analog audio signal.

Next, in the configuration example shown in FIG. 7, the front end unit 11 extracts a packet stream including a video signal and an audio signal of a program (program) specified by the user from the output of the antenna 2, and descrambles the packet stream. It is output to 61. The descrambler 61 descrambles the packet stream input from the front end unit 11 using the descramble information generated by the demultiplexer 62 and supplied via the control unit 23, and Is output. In the demultiplexer 62, information for descrambling used by the descrambler 61 is generated and supplied to the descrambler 51 via the control unit 23. Demultiplexer 6
In 2, the packet stream of the program signal from the descrambler 61 is separated into individual packets, and only the packets related to the program to be viewed are selected and output to the hard disk drive 63.

On the other hand, in the front end unit 19, a packet stream of the CM signal is extracted from the output of the antenna 2 and output to the demultiplexer 64. In the demultiplexer 64, the packet stream of the CM signal from the front end unit 19 is separated into individual packets, and only the packets related to commercials to be viewed by the user are selected and output to the hard disk drive 63.

The hard disk drive 63 stores a packet of the program signal input from the demultiplexer 62 and a packet of the CM signal input from the demultiplexer 64. Hard disk drive 6
3 is supplied to the AV decoder 16 under the control of the control unit 23.

The AV decoder 16 decodes the packet from the demultiplexer 15 and outputs the obtained digital video signal and audio signal to the video encoder 17 or the audio D / A converter 18, respectively. In the video encoder 17, the AV decoder 16
Is converted to a signal suitable for a subsequent device and output. Audio D / A
The converter 18 converts the digital audio signal input from the AV decoder 16 into an analog audio signal and outputs the analog audio signal.

By using a commercial signal broadcast by the CM broadcasting device 5, for example, it is possible to insert a commercial in the middle of an event of a game content reproduced by a game machine or the like. That is, FIG.
As shown in (A), in the middle of the game content progressing in the order of event A, event B, and event C, C
A commercial using a CM signal from the M broadcast device 5 can be inserted and played.

FIG. 9 shows an example of a configuration of a portion for receiving a CM signal of a receiving device connectable to a game machine or the like capable of realizing the above-described operation (reception of a program signal corresponding to a normal television broadcast). (Parts are not shown.)

At the front end section 71 of the receiving apparatus, a packet stream of the CM signal is extracted from the output of the antenna 2 and output to the memory 72. Memory 72
Stores the CM signal packet stream from the front end unit 71 and outputs the stored CM signal packet stream to the external input / output interface (I / F) 73 under the control of the control unit 78.

To the external input / output interface 73, a video signal and an audio signal from the game machine and a signal indicating a break of an event are also input. The external input / output interface 73 outputs a signal indicating a break of an event from the game machine to the control unit 78. The external input / output interface 73 also normally outputs a video signal and an audio signal from the game machine to the subsequent demultiplexer 74 (when no signal indicating a break of the event is input from the game machine), and outputs the event signal from the game machine. When the signal indicating the delimiter is input, the packet stream of the CM signal input from the memory 72 is output to the demultiplexer 74.

In the demultiplexer 74, the packet stream of the CM signal is separated into individual packets, and only the packets related to commercials to be viewed by the user are selected and supplied to the AV decoder 75. AV decoder 75
Then, the packet from the demultiplexer 74 is decoded, and the obtained digital video signal and audio signal are
Video encoder 76 or audio D /
Output to A converter 77. The video signal and audio signal of the game machine output from the external input / output interface 73 are not processed by the demultiplexer 74 and the AV decoder 75,
6 or the audio D / A converter 77. The video encoder 76 converts the digital video signal input from the AV decoder 75 into a signal suitable for a subsequent device (such as the display 3) and outputs the signal.
In the audio D / A converter 77, the AV decoder 7
The digital audio signal input from 5 is converted into an analog audio signal and output.

The control unit 78 controls the drive 79 to
Magnetic disk 80, optical disk 81, magneto-optical disk 8
2, or reads out a control program stored in the semiconductor memory 83, and controls each section of the receiving apparatus based on the read control program, a channel selection operation input by a user, and the like.

When a game machine is connected to the receiving device shown in FIG. 9, as shown in FIG.
1, event B, insertion CM2, and event C can be reproduced in this order. However, the game machine outputs a signal indicating the delimitation of the event, and outputs the video signal and the audio signal of the next event until the commercial inserted in the receiving device ends in response to the output of the signal. Need to wait for output.

Instead of inserting and playing back commercials, hints and the like for advancing the game being executed may be inserted and played back. It is also conceivable that predetermined program data is transmitted on a CM signal wave to be executed by a game machine.

Incidentally, the series of processes described above can be executed by hardware, but can also be executed by software. When a series of processing is executed by software, a program constituting the software can execute various functions by installing a computer built into dedicated hardware or installing various programs. It is installed from a recording medium into a possible general-purpose personal computer or the like.

As shown in FIG. 2, the recording medium is a magnetic disk 25 (including a floppy disk) on which the program is recorded and an optical disk 26 which are distributed separately from the computer to provide the program to the user.
(CD-ROM (Compact Disc-Read Only Memory), DVD (Digit
al Versatile Disc), magneto-optical disc 27 (M
D (including Mini Disc)), or a packaged medium including a semiconductor memory 28, etc., and also provided to a user in a state of being incorporated in a computer in advance, such as a ROM or a hard disk on which a program is recorded. It consists of.

In this specification, the steps of describing the program recorded on the recording medium are not limited to the processing performed in chronological order according to the described order, but are not necessarily performed in chronological order. Alternatively, it also includes individually executed processing.

In this specification, the system is
It represents the entire device composed of a plurality of devices.

[0068]

As described above, according to the receiving apparatus and method of the present invention, and the program of the recording medium, the switching information included in the acquired predetermined information signal is detected, and the reproduction is performed in accordance with the detection result. Since the processing target is switched to either the acquired broadcast signal or the acquired predetermined information signal, a commercial broadcast independently of the television broadcast is inserted in the middle of the television broadcast. Can be viewed by viewers.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of a broadcast system to which the present invention has been applied.

FIG. 2 is a block diagram illustrating a configuration example of a receiving device 1 according to an embodiment of the present invention.

FIG. 3 is a flowchart illustrating a receiving process of the receiving device 1.

FIG. 4 is a diagram for explaining a receiving process of the receiving device 1;

FIG. 5 is a diagram for explaining a receiving process of the receiving device 1;

FIG. 6 is a block diagram illustrating another configuration example of the receiving apparatus 1 according to an embodiment of the present invention.

FIG. 7 is a block diagram illustrating another configuration example of the receiving apparatus 1 according to an embodiment of the present invention.

FIG. 8 is a diagram for describing an application example of a broadcast system to which the present invention has been applied.

9 is a diagram illustrating a configuration example of a receiving device that realizes the application example illustrated in FIG. 8;

[Explanation of symbols]

1 receiver, 2 antenna, 3 display,
4 Program broadcasting device, 5 CM broadcasting device, 1
1 front end section, 12 PID parser, 13 FIF
O memory, 14 descrambler, 15 demultiplexer, 16 AV decoder, 17 video encoder, 18 audio D / A, 19 front end unit, 20 FIFO memory, 21 demultiplexer, 22 switch, 23 control unit, 24 drive, 25 magnetism Disk, 26 optical disk, 2
7 magneto-optical disk, 28 semiconductor memory

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) H04N 5/445 H04N 5/445 Z 7/16 7/16 A F term (reference) 5C023 AA21 AA38 BA01 BA16 CA03 CA08 EA02 5C025 AA30 BA14 BA21 CA02 CA19 CB10 DA01 DA05 5C064 BA01 BB10 BC06 BC10 BC16 BC21 BC23 BD08 BD09 5K061 AA03 BB07 BB17 BB19 CC45 FF01 FF11 GG09 JJ07

Claims (5)

[Claims] 1. A receiving device for receiving a broadcast signal, wherein: a first acquisition unit for acquiring the broadcast signal; and a second acquisition unit for acquiring a predetermined information signal different from the broadcast signal.
Acquiring means; reproducing means for reproducing the broadcast signal acquired by the first acquiring means or the predetermined information signal acquired by the second acquiring means; and the reproducing means acquiring the predetermined information signal acquired by the second acquiring means. Detecting means for detecting the switching information included in the information signal of the above, corresponding to the detection result of the detecting means, the reproduction object of the reproducing means, the broadcast signal obtained by the first obtaining means, or the A switching unit for switching to one of the predetermined information signals acquired by the acquisition unit. 2. The receiving apparatus according to claim 1, wherein the predetermined information signal is a commercial AV signal. 3. An input unit for inputting an AV signal and switching information generated by another electronic device, wherein said switching unit reproduces said reproduction unit in response to said switching information input by said input unit. The target, the AV signal generated by the other electronic device input by the input means,
The receiving device according to claim 1, wherein the receiving device switches to one of the predetermined information signals acquired by the second acquiring unit. 4. A receiving method of a receiving apparatus for receiving a broadcast signal, wherein: a first acquiring step of acquiring the broadcast signal; and a second acquiring step of acquiring a predetermined information signal different from the broadcast signal.
And a reproduction step of reproducing the broadcast signal acquired in the processing of the first acquisition step or the predetermined information signal acquired in the processing of the second acquisition step; and the second acquisition A detection step of detecting switching information included in the predetermined information signal acquired in the processing of the step, and, in accordance with a detection result in the processing of the detection step, the reproduction processing target of the reproduction step is The broadcast signal acquired in the processing of the first acquisition step, or the second
A switching step of switching to one of the predetermined information signals acquired in the processing of the acquiring step. 5. A receiving program for receiving a broadcast signal, comprising: a first obtaining step of obtaining the broadcast signal; and a second obtaining step of obtaining a predetermined information signal different from the broadcast signal.
And a reproduction step of reproducing the broadcast signal acquired in the processing of the first acquisition step or the predetermined information signal acquired in the processing of the second acquisition step; and the second acquisition A detection step of detecting switching information included in the predetermined information signal acquired in the processing of the step, and, in accordance with a detection result in the processing of the detection step, the reproduction processing target of the reproduction step is The broadcast signal acquired in the processing of the first acquisition step, or the second
A switching step of switching to one of the predetermined information signals obtained in the processing of the obtaining step.