JP2003061063A - Information transmitter, receiver and transmission/ reception system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of leading to no benefits for information sponsors because commercial messages are skipped or fast forwarded, when information temporarily recorded by a recording and reproducing device is reproduced. SOLUTION: Scramble information of video/audio information such as a movie which follows a commercial signal, is placed dispersedly in the commercial signal. In the case of reproduction, a user will no longer be able to interpret scrambled information and view/listen to the video/audio information without reproducing almost all commercial messages. The scrambled information is changed, each time commercial messages are transmitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for transmitting information such as commercial and video information, a device for transmitting, a device for receiving, a device for recording / reproducing, and a device for reproducing software recording information such as commercial and video. In particular, the present invention relates to one in which reproduction of a commercial is not omitted when the user views it.

[0002]

2. Description of the Related Art In the field of television broadcasting, an apparatus for recording and reproducing the same, and a package medium such as movie software, digital broadcasting has started and a consumer digital recording / reproducing apparatus corresponding thereto has been put on the market. ing. Packaged software used in this device will appear in the near future. The advantage of digital broadcasting and digital recording devices is that there is little or no quality deterioration in the information transmission process or recording / reproduction process. However, when a large number of high quality copies of information are created and distributed in places where the copyright holder does not know, and when the copying is repeated, there is a problem that the profit is not returned to the copyright holder. Therefore,
When it is necessary to strictly manage the copyright, a method of preventing the user from recording on the device has been considered. However, if recording cannot be performed on the device at all, it becomes impossible to view the broadcast when the work is unexpectedly performed, which inconveniences the user.

[0003] Therefore, Japanese Patent Laid-Open No. 2000-149417 discloses a method called temporary recording for time-shifting the information during broadcasting so that the information can be viewed. In this method, information is physically recorded once on a recording medium, but a period of 90 minutes or the like is set during the reproduction and viewing, and the information is erased after the reproduction or the time limit. That is, instead of storing it for a long time and recording it for multipurpose use, it operates equivalently by delaying the viewing of the broadcast within 90 minutes. Since the information on the medium does not remain for a long time, the inconvenience of the user described above can be resolved without giving a disadvantage to the copyright holder. Due to its nature, temporary recording is often performed using a hard disk recorder built in the receiving device.

By the way, producers of digital broadcasting are now required to obtain information suitable for their quality.
The production cost will increase, and the demand for cost burden on sponsors will increase. Therefore, the creator and the sponsor side need more ingenuity than ever before so that the user can surely reproduce the sponsor commercial. Especially, as time-shifted viewing by temporary recording becomes common as described above, it is important that there is an increased chance that the commercial recording portion will be skipped by fast-forwarding when playing back and viewing. It becomes a matter.

In Japanese Patent Laid-Open No. 8-235676, when reproducing the information once recorded in the recording / reproducing apparatus, a part where the sound is silent is detected, and switching between normal broadcasting and commercial is detected and reproduced. A method of switching operation is disclosed.

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The matter disclosed in Japanese Patent No. 35676 detects a portion in which a commercial is recorded at the time of reproduction and skips this portion,
The purpose is to pick up and watch only the normal broadcast part. On the other hand, there has been no disclosure of a method for a user to reliably play a commercial.

[0007] An object of the present invention is to reliably play back information recorded by a recording / playback apparatus to a user without skipping commercials by sponsors (hereinafter, referred to as “playback”). ,"skip,
Or normal playback that has not been fast-forwarded).

[0008]

In order to achieve the above object, in a transmitter for transmitting commercials and video information, a scramble means for scrambling the video information, and descrambling information for descrambling the video information. Is multiplexed with the commercial, and transmitting means for transmitting the commercial with the release information multiplexed and the scrambled video information.

Further, in the receiving device for receiving the commercial and scrambled video information, decompression information for descrambling the video information is multiplexed in the commercial, and extraction means for extracting the decompression information, And descrambling means for descrambled video information according to the cancellation information extracted by the extraction means.

In the transmission / reception system of the present invention, which includes a transmitter for transmitting commercial and video information and a receiver for receiving the transmitted commercial and video information, the transmitter scrambles the video information. Means, multiplexing means for multiplexing descrambling information for descrambling the video information on the commercial, and transmission means for transmitting the commercial and scrambled video information on which the descrambling information is multiplexed, The receiving device has an extracting means for extracting the cancellation information and a descramble means for canceling the scramble of the video information by the cancellation information extracted by the extracting means.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings as necessary. First, the entire system to which the present invention is applied will be described. FIG. 1 is a block diagram showing an embodiment of the entire system used in the present invention, and shows an example of transmitting and receiving information by broadcasting and recording and reproducing. The transmission method according to the present invention is applied to this, and the apparatus including the present invention is also included. 1 is an information providing station such as a broadcasting station, 2 is a relay station, 3 is a receiving device, 4 is a first recording / reproducing device, 5 is a display,
6 is a second recording / reproducing apparatus, and 7 is a third recording / reproducing apparatus. When recording a broadcast or the like (including the above-mentioned temporary recording), all of the first recording / reproducing apparatus 4, the second recording / reproducing apparatus 6, the third recording / reproducing apparatus 7, or any one of them. You can record one or two. The first recording / reproducing apparatus 4 will be described here as a digital recording system built in the receiving apparatus 3. The recording medium may be a non-removable medium such as a hard disk. A removable device such as a video disk or a video tape may be used, but the recording / reproducing device built in the receiving device may be used for storing information for a relatively short period of time. For example, the temporary recording described above is mainly used. You can also use something that cannot be removed, such as when doing. The second recording / reproducing apparatus 6 will be described here as a digital recording system, and the third recording / reproducing apparatus 7 will be described as a conventional general-purpose analog recording system. According to the present invention, either the first recording / reproducing apparatus 4 or the second recording / reproducing apparatus 6 does not exist, or
Even if both are present and not operating, the intended operation can be realized. The third recording / reproducing device 7 is
It doesn't matter if it doesn't exist.

The information providing station 1 such as a broadcasting station transmits a signal wave modulated by information via a relay station 2 such as a broadcasting satellite. Of course, other transmission methods such as cable transmission, telephone line transmission, and terrestrial broadcast transmission may be used. This signal radio wave received by the receiving device 3 on the receiving side is demodulated into an information signal as described later, and then, if necessary, the first recording / reproducing device 4, the second recording / reproducing device 6, Or a signal suitable for recording in the third recording / reproducing apparatus 7 and recorded. Also,
It is sent to the display 5. Here, the user can directly view the information content. Further, the information reproduced by the first recording / reproducing apparatus 4 and the second recording / reproducing apparatus 6 described above is given to the display 5 via the receiving apparatus 3, and the information such as the original video and audio is viewed. The information reproduced by the third recording / reproducing device 7 is also displayed on the display 5 by the same route.
However, since this is an analog device which has been generally used conventionally, its reproduction output may be directly applied to the analog input terminal of the display 5. When a removable recording medium on which information is recorded in advance, such as package software, is provided, the reproduction operation is performed after the reproduction operation is performed by, for example, the second recording / reproducing apparatus 6 to the third recording / reproducing apparatus 7. Be seen. Information is often exchanged between devices by digital signals, but for example, the receiving device 3 and the display 5 may be connected by analog signals.

FIG. 2 is a block diagram showing a configuration example of the information providing station 1 such as a broadcasting station in the above system. 11
A is an information generation unit, 11B is a commercial (hereinafter abbreviated as CM) generation unit, 12A and 12B are encoding circuits that perform compression by the MPEG system, 13A is a scramble circuit,
13B is an adding circuit, 14 is a modulating circuit, 15 is a transmitting antenna, 16 is a scramble information generating circuit, and 17 is an input terminal. The encoder circuit 12A compresses the amount of data so that information such as news, movies, dramas, etc. generated by the information generator 11A, such as a camera and a recording / reproducing device, and video / audio can be transmitted in a smaller occupied band. Is applied. If necessary, the scramble circuit 13A
It is transmission-encrypted so that only specific viewers can view it. On the other hand, the encoding circuit 12B compresses the data amount of the information such as the video / audio that supplies the CM of the sponsor, which is generated by the CM generating unit 11B which also includes the recording / reproducing device. After that, in the adder circuit 13B, the scramble circuit 13A used for transmission encryption was used.
Scramble information is added and inserted.

This scramble information is generated by the scramble information generating circuit 16 and given to the scramble circuit 13A and the adder circuit 13B. The former encrypts the information based on it, and the latter encrypts the CM information. Add and insert in It is not necessary to limit the positions where addition and insertion are performed, but if the positions are horizontal or vertical blanking periods, they can be easily separated on the receiving side. However, if all of the CMs are concentrated and added to the start portion of the CM, the expected effect is difficult to achieve. Therefore, for example, 1 byte and 1 bit are separated so that they are scattered in different places in the CM. As will be described later, by reconstructing the scramble information on the basis of this, the cipher can be decrypted.

Scramble circuit 13A and adder circuit 13B
The output of is, for example, time-division-multiplexed by the modulation circuit 14, and then modulated so as to be a signal suitable for transmission, and then emitted from the transmission antenna 15 as a radio wave toward the relay station 2 such as a broadcasting satellite. To be done. The input terminal 17
Although omitted in FIG. 1 above, for example, request information is input via a telephone line or the like. This is utilized in systems such as video-on-demand that determine the information to be sent in response to the viewer's request. In reality, a plurality of pieces of information are often multiplexed on one radio wave by a method such as time division or spread spectrum. Figure 2 for simplicity
In this case, a multiplex circuit that multiplexes a plurality of pieces of information is placed, although not shown in FIG.

FIG. 3 schematically shows the structure of a signal transmitted from the information providing station 1 of FIG. Of which, Fig. 3 (a)
Shows the structure of the entire information signal. As is well known, CMs are inserted in the middle of video / audio information such as news, movies and dramas. First CM insertion period is CM1, then 2
Information of the period of the second CM insertion period CM2 is represented as video / audio information 1. The same applies to CM2 and later. In the present invention, the scramble information used for scrambling the video / audio information is changed when the CM is inserted. Further, for example, the scramble information used for the scramble applied to the video / audio information 1 portion is C
It is added and inserted in the portion of M1. Therefore, if the receiving side does not skip or fast-forward the CM1 and reproduces almost the entire CM1, the following video / audio information 1
Cannot be descrambled and the information cannot be viewed. As a result, it is possible to solve the problem that the CM is skipped and the profit cannot be returned to the sponsor when the temporarily recorded information is reproduced.

As a method of preventing CM skip, for example, the technique described in Japanese Patent Application Laid-Open No. 8-235676 mentioned above is applied to detect a silent portion of a voice to determine a CM portion, and skip the portion. A method to prevent it is also possible. However, according to this method, it may not be possible to discriminate depending on the type of the CM portion and the relationship with the video information, and as a result, skipping of the CM portion may not be prevented. On the other hand, according to this embodiment, if the CM portion is not reproduced,
Since the subsequent video / audio information cannot be viewed, the CM skip can be prevented more reliably.

FIG. 3B schematically shows the structure of the CM1 portion. CM1 may consist of a plurality of CM programs. At any place in the CM, for example, during the blanking period described above, as indicated by the diagonal lines,
Scramble information of video / audio information is inserted.
The CMs before and after the diagonal line may be the same program, or may be another CM program with this as a boundary. The content of the scramble information to be inserted is, for example, C
It is better to make M1 and CM2 different. Further, the insertion periods do not necessarily have to be evenly spaced in time. The amount of data does not have to be equal each time it is inserted. However, if all of the scramble information can be obtained only by reproducing a small part of the CM or by using a small part of the blanking period, the purpose cannot be sufficiently achieved.

In order to separate the scramble information on the receiving side, it is necessary to know whether the information currently being received or being reproduced is a CM. Therefore, although not shown in FIG. 3, it has an attribute code for discriminating this. A method of discriminating a CM using this attribute code, prohibiting fast-forwarding, and preventing a CM skip is also conceivable. However, the method of directly controlling the operation of the device from the attribute code is easy to tamper with. As in the present invention, it is possible to more reliably realize the object by making the desired information unviewable unless the CM is actually reproduced.

The present invention is characterized in that transmission / reception or recording / reproduction is performed using an information signal having the same intention as in FIG. Therefore, the configuration of the information providing station 1 of FIG. 2 described above is not limited to this.
Different ones may be used. For example, in FIG. 2, for simplification of description, an example is shown in which the encoding circuits are provided separately from 12A and 12B and multiplexed when modulating by the modulation circuit 14, but the encoding circuit is shared and the encoding circuits are shared. It is possible to generate the information signal of FIG. 3 and is within the scope of the invention.

FIG. 4 is a block diagram showing an example of the configuration of the receiving device 3 in the system of FIG. 301 is RF
/ IF conversion circuit, 302 demodulation circuit, 303 error correction circuit, 304 first demultiplex circuit, 305 second demultiplex circuit, 306 input / output terminal, 3
Reference numeral 07 denotes a descramble circuit for canceling the transmission cipher applied to the signal, 308 is a decoding circuit, 309 and 310 are output terminals, 311 is a control circuit for controlling the entire receiving apparatus 3,
Reference numeral 312 is an information management circuit, 313 is a command input circuit, 3
14 is an input terminal, 315 is a timing detection circuit, 316
Is a scramble information separation circuit and 317 is a switch. Reference numeral 4 denotes a first recording / reproducing apparatus, which is incorporated in the receiving apparatus 3 as described in FIG. In the figure, the solid line shows the flow of main information such as video and audio, and the dotted line shows the flow of control signal information between each component.

First, the flow of information such as video and audio shown by the solid line will be described. Radio waves from a relay station such as a broadcasting satellite are input to the RF / IF conversion circuit 301. Here, radio waves in the RF band are in the IF band (Intermedia
te Frequency) and becomes a signal in a constant band that does not depend on the receiving channel, and the modulation operation performed for transmission by the demodulation circuit 302 is demodulated. Further, the error correction circuit 303 detects and further corrects a code error that occurs during transmission, and then sends it to the first and second demultiplex circuits 304 and 305. As described above, particularly in the case of digital broadcasting, a plurality of pieces of information such as video and audio are often multiplexed on one channel by a method such as time division or spread spectrum. The demultiplexing circuit separates only the desired information from this. The reason for providing two demultiplexing circuits is
This is because not only the so-called back program recording is enabled, but also the first demultiplexing circuit 304 removes information that is not worth recording. That is, some of the information is the weather forecast,
It is often accompanied by additional information such as the broadcast schedule of the program, which is good to see at the time of broadcasting, but it is not worth recording and watching at a later date, so it is possible to remove it here.

The output of the first demultiplexing circuit 304 is given to the first recording / reproducing apparatus 4, and if necessary,
It is recorded on the recording medium. The signal is also given to the input / output terminal 306, and signals are transmitted / received to / from the second recording / reproducing device 6 connected thereto. The input / output terminal 306 is a bidirectional terminal, and exchanges information to be recorded / reproduced with the second recording / reproducing apparatus 6 as digital data, for example. Generally, the connection according to the IEEE 1394 standard is often used.
In the second demultiplexing circuit 305, the information currently viewed is separated from the received channel. Then, it is applied to one end of the switch 317. Switch 31
In addition to this, the information reproduced by the first recording / reproducing apparatus 4 and the information reproduced by the second recording / reproducing apparatus 6 from the input / output terminal 306 are given to 7, and the information is reproduced by the user's instruction. Either one is selected and the descramble circuit 30 is selected.
7, the timing detection circuit 315, and the scramble information separation circuit 316.

The descramble circuit 307 releases the transmission cipher. Therefore, the timing detection circuit 315 detects the timing of the scramble information insertion section in the CM shown in FIG. 3 from the given information and sends it to the scramble information separation circuit 316. The scramble information separation circuit 316 reconstructs the original scramble information using a memory or the like from the information scattered and transmitted in the CM, and sends it to the descramble circuit 307 to decrypt the transmission cipher. Is possible. For this reason, the user cannot view information such as video and audio continuously sent to the CM unless almost all the CM is reproduced. If the scramble information is changed for each CM, CM
If this is not reproduced almost every time when is sent, the next information cannot be obtained. Therefore, even when the information once recorded in the first and second recording / reproducing devices 4 and 6 is viewed, if the operation for skipping or fast-forwarding the CM is made, the information cannot be viewed and the profit is not returned to the sponsor. can do. In the next decoding circuit 308, the data compression of the moving image performed before transmission is decoded and sent to the external device via the output terminals 309 and 310.
Digital broadcasting includes HD (High Definition) information having more than 1000 scanning lines and SD (Standard Definition) information having about 500 scanning lines. Accordingly, if the former is HD output and the latter is SD output, the information of the output terminal 309 is displayed on the HD compatible display and the SD compatible display and the third recording / reproducing device 7 of FIG.
Information of the output terminal 310 may be supplied to Therefore, the information of the output terminal 310 is preferably converted into analog, but the information of the output terminal 309 may be digital or analog depending on the input of the display.

Next, the control signal shown by the dotted line will be described. The control circuit 311 uses 305, 3
Control signals are exchanged with the respective constituent elements 07, 308, and 317, and the entire receiving device 3 is controlled so as to perform a desired operation. The information management circuit 312 supplies management data when the control circuit 311 performs control in response to a request. For example, timer reservation information by the user is managed here. This reservation designation is input from the input terminal 314, sent to the control circuit 311 via the command input circuit 313, and stored in the information management circuit 312. At the reserved time for viewing, the control circuit 311 sends a control signal to each of the above-mentioned components to start the receiving operation. Which of the three switches the switch 317 selects is determined based on the user's instruction given from the input terminal 314 to the control circuit 311 via the command input circuit 313.

Further, the first recording / reproducing apparatus 4 is the receiving apparatus 3
If it is built in, the recording / reproducing operation is performed according to the user's instruction input from the input terminal 314. Therefore, the output of the command input circuit 313 is supplied. This control signal may be supplied from the control circuit 311.

Further, in the embodiments of the present invention so far,
Although the receiving device includes the recording / reproducing device, even if the recording / reproducing device is not provided, the scramble of the video information may be descrambled when the cancellation information is extracted from the received CM.

The present invention is not limited to digital broadcasting,
It can also be applied to the one distributed as packaged software if it includes CM. After all, an effect that the user can surely reproduce the CM information can be expected.

[0029]

As described above, according to the present invention, when commercial information is not reproduced when reproducing a medium in which a broadcast is recorded or when reproducing packaged software, original information such as video and audio is also reproduced. It is intended to provide a device for making viewing unreadable. Therefore, there is an effect that the problem that the profit originally expected of the sponsor is not returned because the CM is skipped or fast forwarded can be solved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an entire digital information transmission / reception recording / reproducing system to which the present invention is applied.

2 is a block diagram showing a configuration example of an information providing station 1 such as a broadcasting station in FIG.

3 is a diagram showing a configuration example of a signal transmitted from the information providing station 1 of FIG.

4 is a block diagram showing an example of a configuration of a receiving device 3 in FIG.

[Explanation of symbols]

1 ・ ・ Information Provider 11A ・ ・ ・ ・ Information generator 11B ... ・ CM generator 12A ... Encoding circuit 12B ... Encoding circuit 13A ... Scramble circuit 13B ... Adding circuit 14 ... Modulation circuit 15 ... Transmission antenna 16 ... Scramble information generation circuit 17: Input terminal 2 ... Relay station 3 ... Receiving device 301 ... RF / IF conversion circuit 302 ··· Demodulation circuit 303 ... Error correction circuit 304 ... First demultiplexing circuit 305 ... Second demultiplexing circuit 306 ... I / O terminals 307 ... Descrambling circuit 308 ... Decoding circuit 309 ... Output terminal 310 ... Output terminal 311 ··· Control circuit 312 ··· Information management circuit 313 ... Command input circuit 314 ... Input terminal 315 ... Timing detection circuit 316 ... Scramble information separation circuit 317 ... Switch 4 ... First recording / reproducing device 5 ... Display 6 ... Second recording / reproducing device 7 --- The third recording / reproducing device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 7/081 (72) Inventor Atsushi Yoshioka 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Hitachi Digital Co., Ltd. F Term in Media Development Division (reference) 5C025 AA01 BA25 BA30 DA05 5C053 FA13 JA21 LA06 LA07 5C063 AB05 CA23 DA07 5C064 BA07 BB10 BC16 BC17 BC20 BC22 BC25 5D044 AB05 AB07 BC01 CC03 CC04 DE14 DE49 EF05 FG18 GK12 GK20

Claims (14)

[Claims] 1. A transmitter for transmitting commercial and video information, comprising: a scramble means for scrambling the video information; a multiplexing means for multiplexing release information for descramble the video information on the commercial. And a transmitter for transmitting the scrambled video information and the commercial in which the release information is multiplexed. 2. The commercial includes first and second commercials, the video information includes first and second video information, and the first video information is descrambled. The first release information is multiplexed on the first commercial, the second release information for descrambling the second video information is multiplexed on the second commercial, and the first release information is The transmitting device according to claim 1, wherein the transmitting device is different from the second release information. 3. The transmitting means transmits the first commercial, the first video information, the second commercial, and the second video information in this order. Transmitter. 4. The transmitter according to claim 1, wherein the release information is dispersed in the commercial. 5. Receiving means for receiving a commercial in which scrambled video information and descrambling information for descrambling the video information are received, and multiplexed demultiplexing information is extracted from the commercial received by the receiving means. A receiving apparatus comprising: an extraction unit and a descrambling unit that descrambles the video information with the release information extracted by the extraction unit. 6. Receiving means for receiving a commercial in which scrambled video information and descrambling information for descrambling the video information are received, and commercial information and scrambled in which the cancellation information received by the receiving means is multiplexed. Recording means for recording the recorded video information on a recording medium, a reproducing means for reproducing the commercial information and the scrambled video information multiplexed with the release information recorded on the recording medium, and detecting the multiplexed release information from the commercial. A receiving device, comprising: a detection unit for performing descrambling and a descrambling unit for descrambling the video information according to the descrambling information detected by the desensing unit. 7. The commercial includes first and second commercials, the video information includes first and second video information, and the first video information is descrambled. The first release information is multiplexed with the first commercial, the second release information for releasing the scramble of the second video information is multiplexed with the second commercial, and the first release information is The receiving device according to claim 5 or 6, wherein the receiving device is different from the second release information. 8. The reproducing means reproduces the first commercial, the first video information, the second commercial, and the second video information in this order. Receiver. 9. The receiving apparatus according to claim 5, wherein the release information is dispersed in the commercial. 10. A transmission / reception system, comprising: a transmitter for transmitting commercial and video information; and a receiver for receiving the transmitted commercial and video information, wherein the transmitter includes scramble means for scrambling the video information. A receiver for multiplexing the release information for releasing the scramble of the video information on the commercial, and a transmitter for transmitting the commercial on which the release information is multiplexed and the scrambled video information, A receiving unit for receiving the commercial and scrambled video information in which the release information transmitted by the transmitting unit is multiplexed; an extracting unit for extracting the multiplexed release information from the commercial; and an extracting unit for extracting the multiplexed release information. The descrambling information is used to descramble the video information. Transmission and reception system and having a rumble means. 11. A transmission / reception system comprising: a transmitter for transmitting commercial and video information; and a receiver for receiving the transmitted commercial and video information, wherein the transmitter includes scramble means for scrambling the video information. A receiver for multiplexing the release information for releasing the scramble of the video information on the commercial, and a transmitter for transmitting the commercial on which the release information is multiplexed and the scrambled video information, A receiving means for receiving the commercial and scrambled video information in which the release information transmitted by the transmitting means is multiplexed; and a commercial and scrambled video information in which the release information received by the receiving means is multiplexed. Recording means for recording on a recording medium, and recording on the recording medium Reproduction means for reproducing commercial and scrambled video information in which release information is multiplexed, detection means for detecting release information multiplexed in the commercial, and release information detected by the detection means And a descramble means for descrambling. 12. The commercial includes first and second commercials, the video information includes first and second video information, and the first video information is descrambled. The first release information is multiplexed on the first commercial, the second release information for descrambling the second video information is multiplexed on the second commercial, and the first release information is The transmission / reception system according to claim 10, wherein the transmission / reception system is different from the second release information. 13. The reproducing means reproduces the first commercial, the first video information, the second commercial, and the second video information in this order. Transmission and reception system. 14. The transmission / reception system according to claim 10, wherein the release information is dispersed in the commercial.