JP2001053695A - Broadcast program transmission and reception system, and transmission device and reception device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user oneself to determine a style of viewing commercial advertisement through a broadcast program transmission and reception system. SOLUTION: In the broadcast program transmission and reception system which transmits a broadcast program from a transmission device 10 and receives and reproduces the broadcast program by a reception device, the transmission device 10 generates 1st broadcast contents including a time zone for reproducing commercial advertisement halfway in a specific program by a 2nd composition part and generates 2nd broadcast contents not including the time zone by a 1st composition part. A time difference setting part 12c sets a specific time difference between the broadcast start time of the 1st broadcast contents and the broadcast start time of the 2nd broadcast contents, or between the broadcast end time of the 1st broadcast contents and the broadcast end time of the 2nd broadcast contents. This time difference is determined corresponding to the time of the commercial advertisement in the middle of the program included in the 1st broadcast contents.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast program transmitting / receiving system for transmitting a broadcast program from a transmitting device and receiving and reproducing the broadcast program at a receiving device, and a transmitting device and a receiving device in the system.

[0002]

2. Description of the Related Art In recent years, digital communication technology has been remarkably developed, and a broadcast program transmitting / receiving system for transmitting / receiving a broadcast program has reached a major turning point.

Conventionally, in terrestrial television broadcasting and the like, a video signal and an audio signal are transmitted as analog radio waves from a broadcasting station, and the radio waves are received by a television receiver to reproduce video and audio.

On the other hand, recently, so-called digital communication broadcasting, in which video and audio are broadcast as digital signals through a wireless communication path or a wired communication path, has been implemented. Using this technology of digital communication broadcasting,
Multiple broadcast programs can be multiplexed.

[0005] In such a broadcasting service by digital communication broadcasting, it is general that a user (viewer) is charged as a viewing fee according to, for example, the number of programs watched or the number of program contracts.

[0006] Further, in order to reduce the viewing fee charged to the user, a commercial advertisement is regularly transmitted in the middle of a program, and the advertiser is charged.

[0007]

However, from the user's point of view, in the case of charging in accordance with the number of programs viewed or the number of program subscriptions, charging is performed when there are many programs to be viewed. In some cases, the viewing fee is high, so it is necessary to give up watching.

When a commercial advertisement is periodically transmitted in the middle of a program, it is preferable that the viewing fee charged to the user is reduced, but the commercial advertisement is forcibly viewed in the middle of the program. , Some users find it unpleasant to broadcast a commercial advertisement in the middle of a program.

[0009] In view of the above, it is desirable that the user himself / herself decide whether or not to view a commercial advertisement or when to view a commercial advertisement.

[0010] It is therefore an object of the present invention to provide a broadcast program transmission / reception system in which a user can determine a viewing mode of a commercial advertisement, and a transmission device and a reception device in the system.

[0011]

According to one aspect of the present invention, there is provided a broadcast program for transmitting a broadcast program from a transmitting device and receiving and reproducing the broadcast program at a receiving device. A transmission / reception system, wherein the transmission device generates a first broadcast content including a program and a commercial advertisement, and a second broadcast content including only a program, and starts broadcasting the first broadcast content. One of a time and a broadcast start time of the second broadcast content, or a broadcast end time of the first broadcast content and a broadcast end time of the second broadcast content are matched with each other, and a predetermined Time difference setting means for setting a time difference between the first broadcast content and the second broadcast content, based on the time difference. 1 broadcast content and the second
Receiving means for selecting and receiving any one of the broadcast contents.

According to a second aspect of the present invention, in the broadcast program transmitting / receiving system according to the first aspect, the time difference setting means includes a broadcast end time of the first broadcast content and a broadcast end time of the second broadcast content. Time, setting a time difference between the broadcast start time of the first broadcast content and the broadcast start time of the second broadcast content, and the transmitting unit sets the second broadcast based on the time difference. The broadcast of the content is started with a delay from the broadcast start time of the first broadcast content.

According to a third aspect of the present invention, in the broadcast program transmitting / receiving system according to the first or second aspect, the receiving device further comprises a storage medium storing a commercial advertisement, and the second broadcast When the content is selected, received, and reproduced, the commercial advertisement is read from the storage medium and reproduced during the time zone in which the time difference is set.

According to a fourth aspect of the present invention, there is provided a transmitting apparatus for transmitting a broadcast program, wherein the first broadcast content including a program and a commercial advertisement and the second broadcast content including only a program are generated. Means, a broadcast start time of the first broadcast content and a broadcast start time of the second broadcast content, or a broadcast end time of the first broadcast content and a broadcast end time of the second broadcast content. Time difference setting means for matching one of the contents and setting a predetermined time difference with respect to the other, and transmitting the first broadcast content and the second broadcast content based on the time difference Means.

According to a fifth aspect of the present invention, in the transmission apparatus according to the fourth aspect, the time difference setting means is configured to transmit the first time difference.
The broadcast end time of the broadcast content is matched with the broadcast end time of the second broadcast content, and a time difference is set between the broadcast start time of the first broadcast content and the broadcast start time of the second broadcast content. The transmitting means starts the broadcast of the second broadcast content with a delay from the broadcast start time of the first broadcast content based on the time difference.

According to a sixth aspect of the present invention, there is provided a receiving apparatus for receiving a broadcast program and outputting the broadcast program to a predetermined display device, wherein the first apparatus includes a storage medium storing a commercial advertisement, and a program and a commercial advertisement. Receiving means for selectively receiving any one of the broadcast content and a second broadcast content including only a program in which a predetermined time difference is set with respect to the broadcast start time or the broadcast end time of the first broadcast content, Means for reading the commercial advertisement from the storage medium and outputting the commercial advertisement to the display device during the time zone in which the time difference is set when the second broadcast content is selected and output to the display device.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS <1. First Embodiment> First,
A broadcast program transmission / reception system according to a first embodiment of the present invention will be described. In this embodiment, a transmitting device transmits a broadcast including a commercial advertisement and a broadcast not including a commercial advertisement in the middle of a program while maintaining substantially the same program content, and the receiving device allows a user to use the commercial device. An example of a broadcast program transmission / reception system configured to secure an opportunity to view an advertisement will be described.

FIG. 1 is a block diagram showing an outline of the broadcast program transmitting / receiving system 1. As shown in FIG. As shown in FIG. 1, the broadcast program transmitting / receiving system 1 includes a transmitting device 10 in a broadcasting station for transmitting various information related to a program and a commercial advertisement, and a receiving device 2 for receiving various information transmitted from the transmitting device 10.
0 and a display device 30 for outputting information (including programs and commercial advertisements) received by the receiving device 20.

FIG. 2 is a block diagram showing the internal structure of the transmitting device 10, and FIG. 3 is a block diagram showing the internal structure of the receiving device 20.

As shown in FIGS. 1 and 2, the transmitting apparatus 10 includes various information sources 11 including programs and commercial advertisements.
A knitting unit 12 that performs structuring processing and format conversion of a plurality of broadcast contents based on various information in the information source 11 and outputs each broadcast content; and temporarily stores each broadcast content output from the knitting unit 12. A transmission buffer 13 for temporarily storing and holding, and a transmission converter 14 for modulating a plurality of pieces of information on broadcast contents in the transmission buffer 13 in a predetermined communication protocol format and outputting the modulated information at a predetermined timing.

As shown in FIG. 2, the information source 11
The transmission device 1 is a material used for composing broadcast content, and includes program content information 11a composed of a plurality of program information composing main broadcast content, and a plurality of commercial advertisements (so-called CMs: commercial messages). And advertising content information 11b composed of advertising information. In the example shown in FIG. 2, program 1, program 2, program 3,... Are held as the program information included in the program content information 11a, and CM1, CM2, CM3 are included as the advertisement information included in the advertisement content information 11b. , ... are held. Each program information in the program content information 11a includes video information, audio information, and the like, and each advertisement information in the advertisement content information 11b also includes video information, audio information, and the like. Also, the program content information 11a and the advertisement content information 1
If there is other information such as character information to be transmitted to the receiving device 20 side in addition to 1b, these information are also prepared and held in the information source 11.

Incidentally, header data DH1 is added to each advertisement information in the advertisement content information 11b as shown in FIG. The header data DH1 includes predetermined flag data DH1 indicating that the data is related to a commercial advertisement.
1. Advertiser data DH12 for identifying an advertiser, category data DH1 for identifying an advertisement target product and the like
3. Broadcast start date data DH14 indicating the date on which the commercial advertisement started broadcasting, and expiration date data DH15 indicating the expiration date of the commercial advertisement. Then, following the header data DH, data relating to the content of each commercial advertisement is associated.

As shown in FIG. 2, the knitting section 12 fetches, for example, program information such as program 1, program 2 and program 3 and advertisement information such as CM1, CM2 and CM3 from the information source 11, and according to a time table. A plurality of broadcast data in which programs and the like are structured are generated. One of the plurality of broadcast data is generated by the first knitting unit 12a and includes only the program content fetched from the program content information 11a, and the broadcast content does not include the commercial advertisement (the second broadcast content). ) Is generated as data for transmission. Another one of the plurality of broadcast data is generated by the second knitting unit 12b, and includes the program content information 11a and the advertisement content information 11a.
b, and is generated as data for transmitting a broadcast (first broadcast content) including a commercial advertisement in the middle of a program in the broadcast content.

For example, as the program content information 11a in the information source 11, a program 1 with a broadcast time TB1, a program 2 with a broadcast time TB2, and a program 3 with a broadcast time TB3 as shown in FIG.
6 are stored as the advertisement content information 11b.
CM1, CM2 of the broadcast time TC as shown in
Assuming that CM3 or the like is held, a broadcast that includes a commercial advertisement in the middle of a program has a time from the start to the end of the broadcast that is equal to the time of the commercial advertisement, compared to a broadcast that does not include a commercial advertisement in the middle of the program. become longer. Therefore, the knitting unit 12 is provided with a time difference setting unit 12c, which calculates the time during which the commercial advertisement is included during the broadcast of each program content, and calculates the broadcast start time of the broadcast program that does not include the commercial advertisement by that time. Set the timetable to delay.

As a result, the broadcast contents including the commercial advertisement and the broadcast contents not including the commercial advertisement are structured as the broadcast contents as shown in FIG. That is, as shown in FIG. 7, in the case of a broadcast including a commercial advertisement, the broadcast is started from the broadcast start time TS1 and the content of the program 1 is broadcast at the broadcast end time TE1, whereas the broadcast without the commercial advertisement is performed. In the case of, the broadcast start time is set to be delayed from the time TS1 by the time difference Δt1. This time difference Δt1 is the broadcast time T of CM1.
C (see FIG. 6). Similarly, for the broadcast start time of the subsequently broadcasted program 2, a time difference Δt2 is set between the broadcast including the commercial advertisement and the broadcast not including the commercial advertisement. Regarding the program 3, since the broadcast time related to the content of the program 3 is short, the broadcast including the commercial advertisement is set not to broadcast the commercial advertisement during the broadcast of the program 3,
Since both broadcasting times are substantially the same, the time difference Δt3
Is 0.

As described above, in the broadcast including no commercial advertisement, the broadcast start time of each program is determined by setting a predetermined time difference from the broadcast start time of each program in the broadcast including the commercial advertisement. It becomes possible to shorten the viewing time of the program by the broadcast time. Further, since only the commercial advertisement broadcast time is shortened, the actual program contents can be the same in any broadcast.

For example, even when each program is broadcast live, the broadcast end time including no commercial advertisement is delayed according to the time difference based on the time difference, so that the broadcast end time can be matched. No inconvenience such as lack of program content occurs. That is, in live broadcasting, it is premised that the broadcast ending times are matched, so that the program contents are matched by setting a time difference according to the time of the commercial advertisement at the broadcast start time. However, in this case, the broadcast including the commercial advertisement is always a live broadcast, whereas the broadcast without the commercial advertisement has a broadcast content delayed by a time difference Δt immediately after the start of the broadcast. However, it will gradually shift to live broadcasting as the broadcast progresses.

On the other hand, when the program contents are determined in advance, such as a movie, there is no need to match the end times, so that the broadcast start time between the broadcast including the commercial advertisement and the broadcast not including the commercial advertisement is set. It is also possible to realize such that the broadcast end time is set to a predetermined time difference.

The knitting section 12 further performs necessary digital signal processing on broadcast data related to broadcasts not including commercial advertisements and broadcast data related to broadcasts including commercial advertisements, executes encoding processing, and performs predetermined processing. Convert to data format and send
To be transmitted. The data format of the encoding process is defined in advance so as to be suitable for storing in the transmission buffer 13 and to be transmitted by the transmission conversion device 14. And the like are executed together.

The transmission buffer 13 accumulates and stores the respective broadcast data of the broadcast including the commercial advertisement and the broadcast not including the commercial advertisement obtained by the knitting unit 12.
A medium that has a large capacity, is capable of random access, and that can easily realize high-speed access is used. For example, hard disks and optical disks,
A disk-shaped recording medium such as a magneto-optical disk, which can be accessed randomly, and a driver corresponding thereto, or
A large-capacity semiconductor memory (RAM) or the like is applicable.

The transmission converter 14 has a timer 1 inside.
4a is built in, and the broadcast data including the commercial advertisement and the broadcast data not including the commercial advertisement stored in the transmission buffer 13 are appropriately read based on the time measured by the timer 14a. Then, these broadcast data are transmitted to a predetermined broadcast system (for example,
The modulation is performed by a method suitable for terrestrial broadcasting, communication satellite broadcasting, cable television, Internet television, or the like), and is transmitted and output as a predetermined broadcast wave. Here, as the broadcast wave, a multiplex communication wave that is obtained by multiplexing and outputting a plurality of types of broadcast data such as a broadcast including a commercial advertisement, a broadcast including no commercial advertisement, and other broadcasts is adopted. A time-division multiplexing method in which a plurality of types of data are transmitted by dividing time may be used, or a frequency multiplexing method in which a plurality of types of data are allocated to different frequencies and transmitted.

When transmitting a broadcast that does not include a commercial advertisement in the transmission converter 14, it is assumed that substantial broadcast contents do not exist in the time periods of the program idle time TD1, TD2, and TD3 shown in FIG. Become. Therefore, in this free time slot, time information until the start of the next program is transmitted as a transmission signal, or a free time start (program end) signal and a free time end (program start) signal in the free time zone are transmitted. If the signal is transmitted as a transmission signal, the receiving apparatus 20 can determine that the program is idle.

The receiving device 20 is installed in a general home or the like, receives a transmission wave transmitted from the transmitting device 10 in a broadcasting station, and reproduces a broadcast program or the like on the display device 3. Top box (ST
It is configured as a single electronic device unit called B). As shown in FIG. 3, the receiving apparatus 20 receives and tunes to the transmission wave transmitted from the transmitting apparatus 10 to perform a demodulation process, and a tuner / decoding circuit 21 demodulated by the tuner / decoding circuit 21. An information processing unit 22 that processes various types of information and a control unit 23 that controls the entire receiving device 20 including the information processing unit 22 are provided.

The tuner / decode circuit 21 includes a receiving circuit 31 for receiving a transmission wave transmitted from the transmitting device 10,
A tuning circuit 32 for extracting and selecting a broadcast wave of a reception channel portion from the signal waves received by the receiving circuit 31; a demodulation circuit 33 for performing demodulation processing on the broadcast wave selected by the tuning circuit 32; A decoding circuit 34 for decoding video, audio, and the like among the signals demodulated by the demodulation circuit 33;

The receiving circuit 31 is connected to the transmitting device 10 in the broadcasting station.
Is a predetermined broadcasting system (for example, terrestrial broadcasting,
A transmission wave transmitted from the transmission device 10 is received by a method corresponding to communication satellite broadcasting, cable television, Internet television, or the like. In the case of broadcasting by wireless communication such as terrestrial broadcasting and communication satellite broadcasting, a signal is received through an antenna or the like.

The tuning circuit 32 amplifies and extracts the high frequency component of the signal wave received by the receiving circuit 31 (tuning), and converts the tuned high frequency into a signal having a predetermined amplitude and a constant amplitude. It is designed to convert. Therefore, either one of the broadcast including the commercial advertisement and the broadcast not including the commercial advertisement is selected by the channel selection circuit 32. Since the broadcast wave has a multiplexed data format, frequency conversion is performed on a frequency corresponding to the adopted multiplexing method.

The demodulation circuit 33 performs demodulation processing corresponding to the transmission converter 14 of the transmission apparatus 10, decomposes and adjusts broadcast waves into video and audio, and performs predetermined demodulation processing to output.

The decoding circuit 34 performs processing such as descrambling and de-interleaving on the video among the various data demodulated by the demodulation circuit 33 to return to the original code string, and further performs error correction and bit expansion and the like. A process of returning to the original video in the information source 11 is performed, and a PCM sub-carrier is extracted from the audio through a band-pass filter, and the waveform is shaped into a digital signal of a PCM code string to return to the original audio in the information source 11. It has become.

The information processing section 22 processes a video and an audio based on the broadcast data supplied from the tuner / decode circuit 21 and outputs the data. A CM determination circuit 42 for determining whether or not the content outputted by the commercial advertisement is a commercial advertisement; a CM counter 43 for counting the number of commercial advertisements output to the display device 30 or the cumulative viewing time of the commercial advertisements; The count result of the CM counter 43 is periodically broadcast via a telephone line or the like in order to charge the viewing fee according to the number of commercial advertisements viewed by the user or the cumulative viewing time of the commercial advertisement. An on-line transmitting unit 44 for transmitting to the station side is provided, and the operation of each unit operates based on a control signal from the control unit 23.

The data output circuit 41 converts the data into a format in which the display device 30 can output video and audio and outputs the data, and also supplies the data obtained from the decode circuit 34 to the CM determination circuit 42. In addition, the data output circuit 41 outputs the idle time of the program (TD1, TD in FIG. 7) during reception of the broadcast including no commercial advertisement.
2, TD3), or when a signal indicating
When there is a command from the control unit 23, for example, the advertisement information recorded in the recording device 46, which will be described later, is read, and this advertisement content is output to the display device 30.

The CM determination circuit 42 is provided with a data output circuit 41
When the data related to the broadcast content obtained from is input, the presence / absence of the flag data DH11 included in the advertisement information and not included in the program information is checked, and the video or the like supplied from the data output circuit 41 to the display device 30 is commercialized. It is determined whether or not the advertisement. Also, this CM determination circuit 42
Is connected to a recording device 46 to be described later, and records the advertisement information in the recording device 46. The reason why the advertisement information is recorded in the recording device 46 is to allow the user to view the commercial advertisement when a vacant time occurs between the programs watched by the user, which will be described later. When the advertisement information is recorded in the recording device 46, the CM determination circuit 42 refers to the above-described header data DH1 and performs a recording operation on the recording device 46 for the same advertisement content as that already recorded in the recording device 46. Is not performed. In other words, the CM determination circuit 42 refers to the header data DH1 to newly record the new advertisement content in the recording device 46 when the content is new, and the advertisement belonging to the same category of the advertiser already recorded in the recording device 46. If the content is a new commercial advertisement for the category, the advertisement content already recorded in the recording device 46 is rewritten.

FIG. 8 is a diagram for explaining the operation in which the CM determination circuit 42 records the advertisement information in the recording device 46. As shown in FIG. 8, while the receiving device 20 is receiving a broadcast including a commercial advertisement, when the CM determination circuit 42 determines that the CM1 is a commercial advertisement, it records this in the recording device 46. Similarly, when CM2 and CM3 are determined, they are recorded in the recording device 46. When the CM determination circuit 42 determines CM1 again during the broadcast of the program 2, the CM data is found to have the same content as the advertisement information already recorded in the recording device 46 from the header data DH1. Not performed. In the case where the advertisement information has the same content as the advertisement information already recorded in the recording device 46, the CM determination circuit 42 does not perform the recording operation, so that the access operation to the recording device 46 can be reduced. Thus, efficient operation of the entire receiving device 20 is realized. And then, program 2
When the CM4 is determined after the end of the above, since the CM4 is not yet recorded in the recording device 46, the content is recorded in the recording device 46. Then, next, when the latest advertisement information on the content of CM1 (that is, the updated content of CM1) is provided to the CM determination circuit 42, the CM determination circuit 42 outputs the CM1 already recorded from the header data DH1.
Can be determined to have been updated. Specifically, when the advertisement information belongs to the same category for the same advertiser and the broadcast start date is later than the broadcast start date of CM1 already stored in the recording device 46,
The CM determination circuit 42 determines that CM1 has been updated. Then, the advertisement content of the CM 1 already recorded is updated to the latest content.

Further, the CM determination circuit 42 includes a recording device 46
Is periodically accessed, and the advertising information whose expiration date has already been stored is deleted from the recording device 46. The CM determination circuit 42 determines whether or not the advertisement is a commercial advertisement, and records the advertisement information in the recording device 46 as described above.
6, the latest and effective advertisement information is always stored.

The CM counter 43 counts the number determined to be a commercial advertisement by the CM determination circuit 42 or the cumulative viewing time of the commercial advertisement. This CM counter 43
As a result, it is possible to leave as data how much the commercial advertisement has been viewed by the user, and it is possible to perform charging according to the viewing amount of the commercial advertisement.

The online transmission unit 44 is driven by a command from the control unit 23, reads out the count result of the CM counter 43 every predetermined period (for example, every week or every month), and connects to a telephone line (not shown). It is configured to transmit the count result to the broadcast station side via the terminal. Also,
After transmission, it is configured to reset the count value of the CM counter 43, which is realized so that the CM counter 43 can count the viewing amount of the commercial advertisement every predetermined period. Note that the timing at which the online transmission unit 44 performs the transmission operation is not limited to a predetermined period, and the transmission operation may be performed, for example, when the count value reaches a predetermined value.

The information processing section 22 is connected to a recording device 46 having a storage medium. This recording device 46
Is for directly storing and recording the advertisement content information and the like provided from the CM determination circuit 42. For example, like the transmission buffer 13 in the transmission device 10, for example, a random access disk-shaped recording medium And a driver corresponding thereto, or may be configured to include a large-capacity semiconductor memory or the like, or may be a general analog time-lapse video. However, since the recording device 46 needs to store a relatively enormous amount of data including images and sounds, the recording device 46 has as large a capacity as possible and random access is possible, and high-speed access is easily realized. It is preferable that the media be used.

The controller 23 wirelessly receives an infrared signal from the remote controller 24 formed separately from the receiver 20 by the infrared light receiving element 25, and in accordance with the received signal, the tuner / decode circuit 21 or The remote control unit 2 controls the information processing unit 22.
In response to the operation input in step 4, power on / off control, broadcast channel selection control, and the like are executed. The control unit 23
Drives the online transmission unit 44 every predetermined period, and executes transmission control of the viewing amount of the commercial advertisement.

The remote controller 24 is provided with an infrared light emitting element for transmitting an infrared signal to the infrared light receiving element 25, a power on / off push button, and a plurality of buttons for selecting a broadcast program. When a push button for channel selection, a commercial advertisement viewing button, or the like is pressed, an infrared signal of a code corresponding to the operation is transmitted from the infrared light emitting element. Thus, it is possible to always switch between viewing a broadcast program including a commercial advertisement or viewing a broadcast program not including a commercial advertisement based on the user's free will. Further, when the user presses the commercial advertisement viewing button, the control unit 23 causes the data output circuit 4 to operate.
By instructing the display device 1, the advertisement information stored in the recording device 46 is read by the data output circuit 41, and the advertisement content is output to the display device 30.

The display device 30 performs predetermined signal processing on the video signal supplied from the information processing section 22 of the receiving device 20 in the image processing circuit 51 and performs CRT (Cathode
RayTube) or a display unit 52 composed of a liquid crystal display panel or the like
And an audio signal supplied from the receiving device 20 is amplified by an amplifier 53 and output to a built-in speaker 54.

The characteristic operation of the broadcast program transmitting / receiving system 1 having the above configuration will be described.

In the broadcast program transmission / reception system 1 configured as described above, the broadcast including the commercial advertisement and the broadcast not including the commercial advertisement are transmitted from the transmission device 10, and the reception device 2
0, the user can view a desired broadcast. Therefore, if a user wants to avoid being forced to watch commercial advertisements during a program, it is possible to view broadcasts that do not include commercial advertisements by selecting broadcasts that do not include commercial advertisements. become. That is, as shown in FIG. 9, when the user wants to view a broadcast including a commercial advertisement, the user proceeds to step S
In step 1, the answer is "YES", and the process proceeds to step S2 to select a broadcast including a commercial advertisement. With this operation, the channel selection circuit 32 selects a broadcast including a commercial advertisement, and transmits the content to a processing circuit subsequent to the channel selection circuit 32. As a result, the broadcast including the commercial advertisement is output to the display device 30 in step S3, so that the user can view the broadcast including the commercial advertisement. On the other hand, if the user does not want to view the broadcast including the commercial advertisement, “NO” is determined in step S1, and the process proceeds to step S4 to perform an operation of selecting a broadcast including no commercial advertisement. With this operation, the channel selection circuit 32 selects a broadcast that does not include a commercial advertisement, and transmits the content to a processing circuit subsequent to the channel selection circuit 32. as a result,
Since the broadcast that does not include the commercial advertisement is output to the display device 30 in step S5, the user can view the broadcast that does not include the commercial advertisement.

Here, in the broadcast program transmitting / receiving system 1, when a broadcast including a commercial advertisement and a broadcast not including a commercial advertisement are multiplexed and broadcast, it is necessary to keep the same program content in both. Therefore, the knitting unit 12 of the transmission device 10 determines whether the broadcast including the commercial advertisement is broadcast or the broadcast is not included in the broadcast including the commercial advertisement based on the time of the commercial advertisement broadcast during the program. A time difference is set for one of the times, and the other is set to be the same time. By setting the time difference based on the time of the commercial advertisement broadcasted in the middle of the program in this way, the time for broadcasting the substantial program contents can be set to the same time, and the time including the broadcast including the commercial advertisement can be set. It is possible to maintain the same program content as that of a broadcast that does not include a commercial advertisement.

In particular, when the program content is a live broadcast, the knitting section 12 sets the time difference determined based on the commercial advertisement as a delay time of the broadcast start time of the broadcast not including the commercial advertisement. By setting the time difference as the delay time in this manner, the broadcast end time of the broadcast including the commercial advertisement and the broadcast end time of the broadcast not including the commercial advertisement can be matched, and the same program content can be maintained for the live broadcast. You can.

However, when two broadcasts, a broadcast including a commercial advertisement and a broadcast not including a commercial advertisement, are transmitted from the transmitting device 10 as described above, it is considered that a large number of users watch the broadcast including no commercial advertisement. From an advertiser's perspective, the expected advertising effect may not be obtained.

Therefore, in order to count the number of commercial advertisements viewed by the user or the cumulative viewing time of the commercial advertisements, the receiving device 20 of the broadcast program transmitting / receiving system 1 has C
An M determining circuit 42 and a CM counter 43 are provided, and an on-line transmitting unit 44 for transmitting the count result to the broadcast station every predetermined period is provided. As a result, it becomes possible for the broadcast station to charge a viewing fee according to the number of commercial advertisements viewed by the user or the cumulative viewing time of the commercial advertisements. If such a charging system is adopted, there is an advantage that the more the user views the commercial advertisement, the lower the viewing fee becomes. Therefore, the commercial advertisement is viewed during the idle time of the program to be viewed. As a result, the advertising effect expected by the advertiser is achieved.

On the other hand, from the user's point of view, for example, in FIG. 7, when the user stops watching program 1 and wants to watch program 2 in a broadcast including no commercial advertisement in the middle of the program, the time corresponding to the idle time TD2 You may want to watch commercial advertisements during this time to reduce viewing fees because they are wasted. However, for broadcasts that include commercial advertising,
Although CM2 is broadcast only during the period from time TE1 to TS2, the commercial advertisement to be viewed is not broadcast during the time period of the time difference Δt2, so that the commercial advertisement cannot be viewed.

To this end, a recording device 46 for recording a commercial advertisement is connected to the receiving device 20 of the broadcast program transmitting / receiving system 1, and the data output circuit 41 outputs the commercial advertisement stored and stored in the recording device 46. It is configured to be able to read and output it to the display device 30. That is, when the data output circuit 41 determines that the time period is the program free time TD1, TD2, or TD3, the commercial advertisements are automatically sequentially read from the recording device 46 and output to the display device 30. -ing As a result, the user can use the program free time TD
1, TD2, and TD3 can view commercial advertisements. That is, as long as a user who is watching a broadcast that does not include a commercial advertisement continuously watches a program that is sequentially broadcast, as shown in FIG. The commercial advertisement is sequentially reproduced on the display device 30.

Further, the user operates the remote controller 2
4 by performing a predetermined operation, the control unit 23 instructs the data output circuit 41 to read and output the commercial advertisement from the recording device 46. It is configured so that sometimes commercial advertisements can be viewed.

The data output circuit 41 is connected to the recording device 4
When the commercial advertisement is read from 6 and output to the display device 30, the CM determination circuit 42 recognizes that the video or the like supplied to the display device 30 is a commercial advertisement, and performs a counting operation on the CM counter 43. Tell them to do it. In other words, the commercial advertisement count performed by the CM counter 43 is determined not only when the broadcast including the commercial advertisement is selected but also when the advertisement content is output to the display device 30 based on the advertisement information read from the recording device 46. It is also done when it is done. As a result, the user can reduce the viewing fee.

The advertisement information of the commercial advertisement recorded on the recording device 46 includes header data DH1, and the header data DH1 includes expiration date data DH15. This is data set because it is not preferable to keep old advertising information in the recording device 46 indefinitely, and the advertising information whose expiration date shown in the expiration date data DH15 has passed is deleted by the CM determination circuit 42. Is done.

For this reason, for example, if the user always selects and watches a broadcast that does not include a commercial advertisement, the recording device 4
The number of commercial advertisements recorded in 6 gradually decreases, and eventually no advertisement information exists in the recording device 46. In this case, there is a problem that the user cannot view the commercial advertisement even if the user tries to view it. In order to avoid this situation, a portable recording medium (for example,
A CD-ROM, a DVD-RAM, etc.) is set, and the recording device 46 is configured to be able to read the advertisement information from such a portable recording medium. If the user is provided with a recording medium on which the latest advertisement information is recorded, the above problem can be solved. That is, the recording device 46 includes an internal recording medium or a read / write device that records or reads advertisement information therein, and an external recording medium or a read / write device that records or reads advertisement information on an external recording medium. Is desirable.

The data output circuit 41 is connected to the recording device 46.
When the advertisement information is read from the PC, the commercial information can be reproduced equally by recording the read count data in association with each advertisement information.

<2. Second Preferred Embodiment> Next, a broadcast program transmitting / receiving system according to a second preferred embodiment of the present invention will be described. In this embodiment, in addition to the first embodiment, the transmitting device is a CM structured only with a commercial advertisement.
It is characterized by broadcasting a dedicated broadcast.

FIG. 11 is a block diagram showing the internal structure of the transmitting device 10a, and FIG. 12 is a block diagram showing the internal structure of the receiving device 20a.

As in the first embodiment, the transmitting apparatus 10a shown in FIG. 11 includes various information sources 11 including programs and commercial advertisements and a plurality of broadcast contents based on various information in the information sources 11. A knitting unit 12 that performs structuring processing and format conversion to output each broadcast content, a transmission buffer 13 that temporarily stores and holds each broadcast content output from the knitting unit 12, and a broadcast in the transmission buffer 13 A transmission conversion device 14 that modulates a plurality of pieces of information on contents in a predetermined communication protocol format and outputs the information at a predetermined timing.
And The difference between the transmitting device 10a and the transmitting device 10 in the first embodiment is the knitting unit 12.

As shown in FIG. 11, the knitting section 12 has a first
The knitting unit 12a, the second knitting unit 12b, and the time difference setting unit 12c
And a third knitting part 12d. First knitting part 12a
Generates broadcast data for transmitting broadcast contents consisting only of program contents according to a predetermined time table so as not to include a commercial advertisement in the middle of the program. Also, the second knitting unit 1
2b generates broadcast data for transmitting broadcast contents consisting only of program contents according to a predetermined time table so as to include a commercial advertisement in the middle of the program. Further, similarly to the first embodiment, the time difference setting unit 12c sets the broadcast start time or the broadcast end time of the broadcast content for viewing the commercial advertisement during the program and the broadcast content for which the commercial advertisement is not viewed during the program. By setting the time difference, the identity of the substantial program contents included in both broadcast contents is maintained. further,
In this embodiment, a third knitting unit 12d is provided, and the third knitting unit 12d is composed of only commercial advertisements, and is used for broadcasting for transmitting broadcast contents in which commercial advertisements are continuously broadcast. Generate data.

FIG. 13 is a diagram showing each broadcast content structured by the knitting unit 12. As shown in FIG. 13, the broadcast contents generated by the second knitting unit 12b include program 1, program 2,
Are set so that the user can watch a commercial advertisement during each program of... That is, it is configured as the broadcast content obtained by removing the advertisement content for each CM from the broadcast program content with the CM shown in FIG. On the other hand, the broadcast content generated by the first knitting unit 12a is a broadcast program without CM shown in FIG. 7 so as to prevent the user from viewing a commercial advertisement in the middle of each program 1, program 2,. It is configured as broadcast content similar to the content. Further, the third knitting unit 12d is configured as broadcast content including only commercial advertisements so that a plurality of pieces of advertisement information are continuously broadcast as shown as CM-only broadcasts in FIG. Note that each piece of advertisement information included in the CM dedicated broadcast is associated with the same header data DH1 (see FIG. 4) as that described in the first embodiment.

The broadcast contents generated as described above are transmitted to the transmission buffer 13 and the transmission converter 14.
Is multiplexed to the receiving device 20a via the.

In the transmission converter 14, the broadcast contents for viewing the commercial advertisement in the middle of the program (broadcast program with CM in FIG. 13) and the broadcast contents for not viewing the commercial advertisement in the middle of the program (CM in FIG. 13) When transmitting a broadcast program without broadcast, as shown in FIG. 13, the time zones in the vacant times TM1, TM2, and TM3 that occur during each program, or the vacant times TN1 and TN that occur between the programs.
In the time zone of 2, TD1, TD2, and TD3, there is no substantial broadcast content. Therefore, in these free time slots, the time information until the start of the next program content is included in the transmission signal and transmitted, or the free time start signal and the free time end signal of the free time zone are used as transmission signals. If transmitted, the receiving device 20 can determine that the program is idle.

Next, the receiving device 20a will be described.
The receiving apparatus 20a in this embodiment is different from the receiving apparatus 20 described in the first embodiment in that a recording apparatus for recording a commercial advertisement does not need to be connected, and in other respects, the receiving apparatus 20a is not used. And have common functions.

The tuner / decode circuit 21 in the receiving device 20a is the same as that described in the first embodiment, and the data relating to one of the multiplexed broadcast contents is processed by the information processing section 22. Given to.

The information processing section 22 includes a data output circuit 41, a CM determination circuit 42, a C
An M counter 43 and an online transmission unit 44 are provided, and the operations of these units operate based on a control signal from the control unit 23.

The data output circuit 41 converts the data into a format in which the display device 30 can output video and audio and outputs the data, and also supplies the data obtained from the decode circuit 34 to the CM determination circuit 42. In addition, the data output circuit 41 outputs a broadcast (CM
During reception of a program during reception of broadcasts other than dedicated broadcasts (Fig. 1
3 when a signal indicating TM1, TN1, TD1, etc.) is input to the control unit 23,
An instruction is given to switch to dedicated broadcasting.

The control unit 23, which has received the switching command from the data output circuit 41, controls the channel selection circuit 32 to switch the reception channel to the CM-only broadcast.

Generally, in a broadcasting service, the broadcasting time for one commercial advertisement is fixed, and if the free time is known, how many pieces of advertisement information can be output to the display device 30 during the free time. Is easily obtained by calculation. This calculation is performed by the data output circuit 41 or the control unit 23, and the control unit 23 transmits the number of CMs calculated by the calculation to the display device 30 to the reception channel switched to the CM dedicated broadcast at the timing of the start of the idle time. Immediately after the output, it is possible to switch back to the original receiving channel.

When the reception channel is switched to the CM dedicated broadcast at the timing of the start of the idle time, the control unit 23 or the data output circuit 41 starts time counting, and when the count result reaches the count amount corresponding to the idle time. Alternatively, it is possible to switch back to the original receiving channel.

That is, TM1, TN1, T shown in FIG.
In each idle time such as D1, the receiving device 20a automatically switches the receiving channel to the CM-only broadcast, thereby allowing the user to view the commercial advertisement. As a result, when the user watches a broadcast including a program content (broadcast other than a CM-only broadcast), the content actually viewed by the user is as shown in FIG.
The broadcast content is as shown in FIG. If the user is watching a broadcast content for viewing a commercial advertisement during the program, CM 4 is output to the display device 30 during the broadcast of the program 1, CM 8 is output between the program 1 and the program 2, CM2 and CM6 are output during the broadcast, and CM10 is output between program 2 and program 3. On the other hand, when the user is watching broadcast content that does not allow the commercial advertisement to be viewed during the program, CM1 is output before the start of program 1, and CM8, CM9, and CM10 are output between program 1 and program 2. The CM 10 is continuously output, and the CM 10 is output between the program 2 and the program 3.

Note that the user can also select a CM-only broadcast as a reception channel. In this case, FIG.
Are sequentially and continuously output to the display device 30.

The CM determination circuit 42 is a data output circuit 41
When the data related to the broadcast content obtained from is input, the presence / absence of the flag data DH11 included in the advertisement information and not included in the program information is checked, and the video or the like supplied from the data output circuit 41 to the display device 30 is commercialized. It is determined whether or not the advertisement.

The CM counter 43 counts the number determined to be a commercial advertisement by the CM determination circuit 42 or the cumulative viewing time of the commercial advertisement. This CM counter 43
As a result, it is possible to leave as data how much the commercial advertisement the user has viewed, and it is possible for the broadcast station to perform charging according to the viewing amount of the commercial advertisement.

The online transmission section 44 is driven by a command from the control section 23, and outputs a CM counter 43 every predetermined period or every time the count value reaches a predetermined value.
Is read out and transmitted to the broadcast station via a telephone line (not shown) or the like.

In the broadcast program transmission / reception system 1 configured as described above, the broadcast content for viewing the commercial advertisement during the program and the broadcast content for which the commercial advertisement is not viewed during the program are transmitted from the transmission device 10a. Receiving device 2
0a, the user can view a desired broadcast. Therefore, if a user wants to avoid being forced to watch commercial advertisements during a program, it is possible to view broadcasts that do not include commercial advertisements by selecting broadcasts that do not include commercial advertisements. become.

Here, in the broadcast program transmission / reception system 1 of this embodiment, as in the case of the first embodiment, the broadcast contents for viewing the commercial advertisement during the program and the commercial advertisement Is multiplexed based on the time difference set by the time difference setting unit 12c with the broadcast content that does not allow the user to view the broadcast content, and the actual program content in each broadcast content can be kept the same. Will be possible.

In particular, when the program content is a live broadcast, the knitting unit 12 sets the time difference determined based on the commercial advertisement broadcasted in the middle of the program to the broadcast start of the broadcast without the commercial advertisement being viewed in the middle of the program. By setting the time as a delay time, it is possible to maintain the same program content even for live broadcasting.

Also, in order to count the number of commercial advertisements viewed by the user or the cumulative viewing time of the commercial advertisements, the CM determination circuit 42 and the CM determination circuit 42 are also provided on the receiving device 20a side of the broadcast program transmission / reception system 1 of this embodiment. A counter 43 is provided, and an on-line transmission unit 44 for transmitting the count result to the broadcast station every predetermined period is provided. It is possible to charge a viewing fee in accordance with the cumulative viewing time of.

In the broadcast program transmitting / receiving system 1 of this embodiment, since the transmitting device 10a transmits the CM-only broadcast, a recording device for recording the commercial advertisement in the receiving device 20a is not particularly required. The configuration of the receiving device 20a can be simplified. As a result, it is possible to reduce the size and cost of the receiving device 20a.

The receiving device 20a is configured to automatically switch the receiving channel to the CM-dedicated channel when the idle time of the program starts, and to automatically switch to the original viewing channel when the idle time of the program ends. Therefore, the commercial advertisement is automatically reproduced on the display device 30 without the user being conscious of watching the commercial advertisement. As a result, from the user's point of view, the effect is obtained that the count value of the CM counter 43 can be increased without any particular awareness, while from the advertiser's point of view, the advertising effect is effectively exhibited. The effect of being able to expect this is obtained.

Further, the user operates the remote controller 2
4, the control unit 23 switches the receiving channel to the CM-only broadcast by performing a predetermined operation on the program 4, so that the user can view the commercial advertisement at any time as well as the idle time of the program. It is configured as follows.

<3. Third Embodiment> Next, a broadcast program transmitting / receiving system according to a third embodiment of the present invention will be described. In this embodiment, as in the second embodiment, the transmitting device is configured to broadcast a CM-only broadcast structured only with commercial advertisements, and the receiving device can download only commercial advertisements. A configuration example that can be performed will be described.

FIG. 15 is a block diagram showing the internal structure of the receiving apparatus 20b in this embodiment. The transmitting device has the same configuration as that shown in FIG. 11, and the broadcast contents transmitted from the transmitting device side are the same as those shown in FIG.

As shown in FIG. 15, this receiving device 20b
Includes a tuner / decode circuit 21 for receiving and selecting a transmission wave transmitted from a transmission device to perform demodulation processing, an information processing unit 22 for processing various information demodulated by the tuner / decode circuit 21, The control unit 23 includes a control unit 23 that controls the entire receiving device 20 including the information processing unit 22, a recording device 46 that records advertisement information, and a CM management unit 47 that manages and controls the advertisement information recorded in the recording device 46. .

The tuner / decode circuit 21 in the receiver 20b includes a CM tuning circuit 32b, a demodulation circuit 33b, and a decode circuit 34b in addition to the configuration described in the first embodiment.

[0093] The receiving circuit 31 is connected to the transmitting device 10 in the broadcasting station.
Is a predetermined broadcasting system (for example, terrestrial broadcasting,
A transmission wave transmitted from the transmission device 10 is received by a method corresponding to communication satellite broadcasting, cable television, Internet television, or the like. In the case of broadcasting by wireless communication such as terrestrial broadcasting or communication satellite broadcasting, a signal is received via an antenna or the like.

The CM selection circuit 32b selects a CM-only broadcast by extracting and amplifying a frequency component of a CM-only broadcast related to a commercial advertisement from the signal waves received by the reception circuit 31. The demodulation circuit 33b performs demodulation processing corresponding to the transmission conversion device 14 of the transmission device, and outputs the result to the decoding circuit 34b. The decoding circuit 34b performs processing such as descrambling and deinterleaving on the video of the advertisement information demodulated by the demodulation circuit 33b to return it to the original code sequence, and further performs error correction and bit expansion to perform information source 11 And restores the original video and the audio through a band-pass filter.
The CM sub-carrier is taken out, and the waveform is shaped into a digital signal of a PCM code string to return to the original sound in the information source 11.

The CM management unit 47 accumulates the advertisement information in the recording device 46 with reference to the header data DH1 (FIG. 4) included in the advertisement information. When recording the advertisement information in the recording device 46, the CM management unit 47 refers to the above-described header data DH1 and performs a recording operation on the recording device 46 for the same advertisement content as that already recorded in the recording device 46. Is not performed. In other words, the CM determination circuit 42 refers to the header data DH1 to newly record the new advertisement content in the recording device 46 when the content is new, and the advertisement belonging to the same category of the advertiser already recorded in the recording device 46. If the content is a new commercial advertisement for the category, the advertisement content already recorded in the recording device 46 is rewritten. Thus, the CM management unit 47 manages the advertisement information recorded in the recording device 46.

As described above, the tuner / decode circuit 21
The advertisement information transmitted from the transmission device side can be downloaded into the reception device 20b by the CM management unit 47 and the recording device 46.

[0097] The data output circuit 41 of the information processing section 22 is configured to read out the commercial advertisement stored and stored in the recording device 46 and output it to the display device 30. That is, when the data output circuit 41 determines that it is the time zone of the program idle time, the commercial advertisements are automatically sequentially read from the recording device 46 and output to the display device 30. As a result, the user can view the commercial advertisement during the idle time of the program. In other words, as long as the user watching the broadcast including the program contents continues to view the sequentially broadcasted program, the commercial advertisement is automatically displayed in the idle time between the programs.
Are sequentially reproduced.

The user operates the remote controller 2
4 by performing a predetermined operation, the control unit 23 instructs the data output circuit 41 to read and output the commercial advertisement from the recording device 46. It is configured so that sometimes commercial advertisements can be viewed.

The data output circuit 41 is connected to the recording device 4
When the commercial advertisement is read from 6 and output to the display device 30, the CM determination circuit 42 recognizes that the video or the like supplied to the display device 30 is a commercial advertisement, and performs a counting operation on the CM counter 43. Tell them to do it. Accordingly, the CM counter 43 starts the commercial advertisement counting operation, and counts the number of commercial advertisements output to the display device 30 or the cumulative viewing time of the commercial advertisement. With such a configuration, the CM counter 43
Can be charged for the viewing fee according to the count value.

<4. Modifications> Several embodiments of the broadcast program transmission / reception system of the present invention have been described above, but the present invention is not limited to those described in the above embodiments.

For example, in the third embodiment, instead of the transmitting apparatus constantly transmitting the CM dedicated broadcast, the transmitting apparatus may be configured to transmit the CM dedicated broadcast for a certain period of time every predetermined period. In this case, when the receiving device 20b receives the CM-only broadcast, the advertisement information is recorded in the recording device 46b.
, It is possible to read out the advertisement information from the recording device 46 and reproduce the advertisement information even in a time zone when the CM-only broadcast is not transmitted.

[0102]

As described above, according to the first and fourth aspects of the present invention, the transmitting apparatus can control the broadcast start time or the broadcast end time of the first broadcast content and the second broadcast content. , And a predetermined time difference is set with respect to the other, and the first broadcast content and the second broadcast content are transmitted. Can be determined, and the first
And the substantial program content of the second broadcast content can be kept the same.

According to the second and fifth aspects of the present invention, the broadcast end time of the first broadcast content is made coincident with the broadcast end time of the second broadcast content, and the broadcast start of the first broadcast content is started. To set a time difference between the time and the broadcast start time of the second broadcast content, and to start the broadcast of the second broadcast content with a delay from the broadcast start time of the first broadcast content based on the time difference, Even when the substantial program content of the first broadcast content and the second broadcast content is, for example, a live broadcast, the same content can be maintained.

According to the third and sixth aspects of the present invention, it is possible to view a commercial advertisement during the idle time of the second broadcast.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of a broadcast program transmission / reception system.

FIG. 2 is a block diagram illustrating an example of an internal structure of a transmission device.

FIG. 3 is a block diagram illustrating an example of an internal structure of a receiving device.

FIG. 4 is a diagram showing an example of header data of advertisement information.

FIG. 5 is a diagram showing an example of each program content.

FIG. 6 is a diagram showing an example of each advertisement content.

FIG. 7 Broadcast contents including commercial advertisements (broadcast programs with CM)
FIG. 6 is a diagram showing broadcast contents (broadcast programs without CMs) not including commercial advertisements.

FIG. 8 is a diagram for explaining an operation in which a CM determination circuit records advertisement information in a recording device.

FIG. 9 is a flowchart showing a procedure when a user watches a broadcast.

FIG. 10 is a diagram showing a concept in which a commercial advertisement is automatically reproduced during a free time between programs.

FIG. 11 is a block diagram illustrating an example of an internal structure of a transmission device.

FIG. 12 is a block diagram illustrating an example of an internal structure of a receiving device.

FIG. 13 is a diagram showing an example of each broadcast content structured by the knitting unit.

FIG. 14 is a diagram conceptually showing broadcast contents to be viewed by a user.

FIG. 15 is a block diagram illustrating an example of an internal structure of a receiving device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 broadcast program transmission / reception system 10, 10a transmission device 11 information source 12 knitting unit 12a first knitting unit 12b second knitting unit 12c time difference setting unit 12d third knitting unit 13 transmission buffer 14 transmission conversion device 20, 20a, 20b reception Device 21 Tuner / Decode Circuit 22 Information Processing Unit 23 Control Unit 30 Display Device 41 Data Output Circuit 42 CM Judgment Circuit 43 CM Counter 44 Online Transmission Unit 46 Recording Device

Continued on the front page (72) Inventor Kazuhiko Ishimaru 2-3-13 Azuchicho, Chuo-ku, Osaka-shi, Osaka Inside Osaka International Building Minolta Co., Ltd. (72) Inventor Akira Kawabata 2-chome Azuchicho, Chuo-ku, Osaka-shi, Osaka No. 13 Osaka International Building Minolta Co., Ltd. F-term (reference) 5C025 CA03 CA20 DA01 5C064 BA07 BB05 BC10 BC16 BC23 BD03 BD07 BD14

Claims (6)

[Claims] 1. A broadcast program transmission / reception system for transmitting a broadcast program from a transmission device and receiving and reproducing the broadcast program at a reception device, wherein the transmission device includes a first program and a commercial advertisement. Means for generating a broadcast content and a second broadcast content including only a program; a broadcast start time of the first broadcast content and a broadcast start time of the second broadcast content; or the first broadcast content Time difference setting means for matching any one of the broadcast end time of the second broadcast content and the broadcast end time of the second broadcast content and setting a predetermined time difference with respect to the other, and the first broadcast content and the second broadcast content Transmitting means for transmitting each of the broadcast content and the broadcast content based on the time difference, wherein the receiving device selects one of the first broadcast content and the second broadcast content Receiving means for receiving Broadcast program transmission and reception system. 2. The broadcast program transmission / reception system according to claim 1, wherein the time difference setting unit matches a broadcast end time of the first broadcast content with a broadcast end time of the second broadcast content, A time difference is set between a broadcast start time of the first broadcast content and a broadcast start time of the second broadcast content, and the transmitting unit transmits the broadcast of the second broadcast content to the first broadcast content based on the time difference. A broadcast program transmission / reception system, wherein the broadcast content is started with a delay from the broadcast start time of the broadcast content. 3. The broadcast program transmission / reception system according to claim 1, wherein the reception device further includes a storage medium storing a commercial advertisement, and selects and receives the second broadcast content. A broadcast program transmission / reception system, wherein, when reproducing, the commercial advertisement is read from the storage medium and reproduced during a time zone in which the time difference is set. 4. A transmitting device for transmitting a broadcast program, comprising: means for generating a first broadcast content including a program and a commercial advertisement; and a second broadcast content including only a program; The broadcast start time of the broadcast content and the broadcast start time of the second broadcast content, or one of the broadcast end time of the first broadcast content and the broadcast end time of the second broadcast content, Time difference setting means for setting a predetermined time difference with respect to the other, and transmission means for transmitting each of the first broadcast content and the second broadcast content based on the time difference. Characteristic transmitting device. 5. The transmission device according to claim 4, wherein the time difference setting unit matches a broadcast end time of the first broadcast content with a broadcast end time of the second broadcast content, and Setting a time difference between the broadcast start time of the broadcast content and the broadcast start time of the second broadcast content, and the transmitting unit transmits the broadcast of the second broadcast content to the first broadcast based on the time difference. A transmission device, which is started with a delay from a broadcast start time of contents. 6. A receiving device for receiving a broadcast program and outputting it to a predetermined display device, comprising: a storage medium in which a commercial advertisement is stored; a first broadcast content including a program and a commercial advertisement; Receiving means for selectively receiving one of the second broadcast contents including only a program in which a predetermined time difference is set with respect to the broadcast start time or the broadcast end time of the first broadcast content; Means for reading out the commercial advertisement from the storage medium and outputting the commercial advertisement to the display device during the time zone in which the time difference is set, when selecting and outputting the commercial advertisement to the display device.