JP2013183443A - Content viewing control method, broadcasting system, recording/reproducing apparatus, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a content viewing control method for controlling viewing of a content without arranging special facilities on a broadcast station side and to provide a broadcasting system, a recording/reproducing apparatus and a program.SOLUTION: In a content viewing control method, a broadcast station transmits a specific signal to a first broadcast specification section where a first content is broadcast. A receiver records reception of the specific signal during selection of the broadcast station. The receiver determines whether the reception of the specific signal is recorded or not when a second content broadcast in a second broadcast specification section is viewed. When the reception of the specific signal is not recorded, a prescribed image is superposed on a video of the second content.

Description

  The present invention relates to a content viewing control method, a broadcasting system, a recording / reproducing device, and a program.

  In general, as contents provided by broadcasters to viewers, programs such as dramas and sports, and commercials (CMs) for advertising are known. For broadcasters, commercial (CM) broadcasting for advertising purposes is the main source of income, and for many broadcasters, how to get viewers to watch commercials (CM) is a major issue.

  On the other hand, when viewing the program content, the viewer must view the commercial (CM) content broadcasted at a certain timing in the program content, and in order to avoid it, the commercial (CM) is being broadcast. Changed the channel to another TV station, and when the commercial (CM) broadcast ended, the channel was returned again to watch the program content (so-called zapping).

  Furthermore, in recent years, recording / playback technology has advanced, and a style has been established in which a number of television broadcasts are simultaneously recorded and played back at a desired time (time-shifted playback) to view program content. In such time-shifted viewing, the case of skipping commercials (CM) other than program content and viewing only the program content is considered to increase more than when viewing live broadcasts.

  Therefore, there is a content providing technology that reflects the viewer's intention in the playback condition such as commercial (CM) linked to the program content and allows the content such as commercial (CM) to be viewed in a method that flexibly responds to the viewer's request. It is disclosed in Patent Document 1.

  The technology of Patent Document 1 is such that the commercial (CM) content and the program content are not defined in the state where the playback time condition on the receiver side between the commercial (CM) content introducing the program scheduled to be broadcast and the program content is not defined. The content transmission means for transmitting the content to the receiver, the association between the commercial (CM) content and the program content, and the commercial (CM) link metadata for linking the commercial (CM) content to the program content for playback. Metadata adding means for adding to commercial (CM) content or program content. The metadata defines a content ID and a relative time from the start of the program. When the relative time has elapsed from the start of the reproduction of the program content, the spot commercial (CM) content of the content ID is stored. Force playback. Further, once commercial (CM) content is played back, the minimum number of content to be played back continuously is defined. Here, once spot commercial (CM) content is played back, it is stipulated that at least three pieces of content are played back (see Patent Document 1: Paragraph Nos. 0041-0046). That is, it is a system for forcibly viewing commercial (CM) content by restricting viewing to the content.

JP 2002-268595 A

  However, the technique of Patent Document 1 must provide special equipment on the broadcasting station side. Furthermore, since the technique of Patent Document 1 forcibly displays commercial (CM) or the like instead of program content, the viewer can forcibly view the commercial (CM) content even while viewing the program content. In such a case, the viewer may refrain from forced viewing, and the viewer may avoid viewing the program content of the broadcast station itself.

  Therefore, the present invention has been invented in view of the above problems, and its object is to provide a content viewing control method, a broadcasting system, and recording / playback for controlling viewing of content without providing any special equipment on the broadcasting station side. Is to provide a machine and a program.

  Another purpose is to be able to view program content related to the commercial (CM) content, etc., even when the viewer is not viewing commercial (CM) content, etc. It is an object to provide a content viewing control method, a broadcasting system, a recording / playback device, and a program for controlling viewing of content that can provide commercial (CM) content without a sense of discomfort.

  The present invention is a content viewing control method, in which a broadcast station sends a specific signal to a first broadcast specific section in which first content is broadcast, and a receiver is in the process of selecting the broadcast station. The reception of the specific signal is recorded, and the receiver determines whether or not the specific signal is received and recorded when viewing the second content broadcast in the second broadcast specific section, and The content viewing control method superimposes a predetermined image on the video of the second content when reception recording is not performed.

  The present invention is a broadcast system, wherein the broadcast station has a specific signal transmission means for transmitting a specific signal in a first broadcast specific section where the first content is broadcast, and the receiver includes the broadcast station A receiving and recording means for recording reception of the specific signal during channel selection, and determining whether or not the specific signal is received and recorded when viewing the second content broadcast in the second broadcast specific section, When the specific signal is not received and recorded, the broadcast system includes image display control means for superimposing a predetermined image on the video of the second content.

  The present invention is a recording / reproducing apparatus, wherein a recording unit for recording a broadcast content stream and a data broadcasting stream, and a first content broadcast from a data broadcasting stream reproduced by the recording unit are provided. A reception recording means for recording the reception of the specific signal transmitted in the broadcast specific section, and determining whether or not the specific signal is received and recorded in the reception recording means at the time of reproduction of the second content from the content stream, When the specific signal is not received and recorded, the recording / reproducing apparatus includes image display control means for superimposing a predetermined image on the video of the second content.

  The present invention is a data broadcast program, which records a reception of a specific signal transmitted in a first broadcast specific section where the first content is broadcast, and is broadcast in the second broadcast specific section. When viewing the second content, it is determined whether the specific signal is received and recorded. If the specific signal is not received and recorded, a predetermined image is superposed on the video of the second content. A program that causes a receiver to execute processing.

  In the present invention, when the first content is not viewed, a predetermined image such as a sponsor's logo is superposed in the video of the second content, so that the viewer who is viewing only the content of the second content Thus, the predetermined image related to the first content can be forcibly viewed without a sense of incongruity.

FIG. 1 is a diagram for explaining the outline of the present invention. FIG. 2 is a diagram illustrating an example in which a predetermined image is superposed in the video of the second content. FIG. 3 is a diagram illustrating an example in which a predetermined image is not superposed in the video of the second content. FIG. 4 is a configuration diagram of the first embodiment. FIG. 5 is a block diagram of the broadcasting station 1. FIG. 6 is a block diagram of the receiver 2. FIG. 7 is an operation flowchart for receiving and recording event messages of the receiver 2. FIG. 8 is a flowchart of the operation of the receiver 2 when viewing a program. FIG. 9 is a block diagram of the recording / reproducing apparatus 3 in the second embodiment. FIG. 10 is an operation flowchart of recording an event message in the recording / playback apparatus 3 according to the second embodiment. FIG. 11 is an operation flowchart at the time of reproduction of the recording / reproducing apparatus 3 of the second embodiment. FIG. 12 is a diagram showing an example in which a predetermined image is superposed in the video of the second content.

  An outline of the present invention will be described.

  In the present invention, a broadcast station sends a specific signal to a first broadcast specific section in which the first content is broadcast, and a receiver records reception of the specific signal during channel selection of the broadcast station. When viewing the second content broadcast in the second broadcast specific section, it is determined whether or not the specific signal is received and recorded, and if the specific signal is not received and recorded, Superimpose a predetermined image.

  Here, there is a commercial as a typical example of the content in the first broadcast specific section. A typical example of content in the second broadcast specific section is a program provided by a commercial sponsor. Further, examples of the specific signal broadcast in the first broadcast specific section include an event message broadcast by data broadcasting, but are not limited thereto. For example, there is a data broadcasting module.

  In the example of the event message, the broadcast station broadcasts the event message in the first broadcast specific section. When the receiver selects a channel of the broadcast station during the first broadcast specific section, the receiver records reception of the event message transmitted by the broadcast station during the first broadcast specific section. If the reception record of the event message is recorded in the receiver, the receiver can determine that the content broadcast in the first broadcast specific section has been viewed.

Here, although the first broadcast specific section and the second broadcast specific section are specified, there are the following methods.
(1) In the broadcasting station, there is an operation management computer that manages the operation of the broadcast time. Based on the operation management, an event message is transmitted at a predetermined interval during the first broadcast specific section, and the second broadcast specific section Stops sending event messages when Then, the receiver determines that it is the first broadcast specific section while the event message is detected, and determines that it is the second broadcast specific section while the event message is not detected.
(2) Based on the operation management of the operation management computer, the first information with the identification information for identifying the first broadcast specific section or the first content in the first broadcast specific section An event message is transmitted, and a second event message with identification information for identifying that it is the second broadcast specific section or the second content is transmitted during the second broadcast specific section. The receiver determines that it is the first broadcast specific section while the first event message is detected, and determines that it is the second broadcast specific section while the second event message is not detected. To do.

  The above is an example using an event message, and other methods may be used.

  The program for controlling the reception recording of the event message and the superimposition of the predetermined image on the video of the second content based on the reception recording can be executed by the receiver by using the data broadcasting BML.

  Next, an outline of the operation will be specifically described with reference to FIG.

  The broadcast station transmits a first event message in a first broadcast specific section (for example, the broadcast time of the commercial (CM)) in which the first content (for example, commercial (CM)) is broadcast. At this time, identification information for identifying the first content is described in the private area (Private_data_byte) of the first event message. In addition, when a first event message in which identification information a for identifying the first content is described in the private area (Private_data_byte) is received using data broadcasting, the first event message is received and recorded. Is transmitted to a predetermined storage area A of the receiver, before the first broadcast specific section starts and / or during the first broadcast specific section.

  The receiver that has selected the broadcast station receives the event message reception recording program and the event message. If the identification information a for identifying the first content is described in the private area (Private_data_byte) of the received event message by the event message reception recording program, the receiver records the first event message. The reception record is recorded in the storage area A.

  Subsequently, the broadcast station transmits a predetermined image (for example, before the second broadcast specific section where the second content (for example, the program main part) is broadcast and / or during the second broadcast specific section, for example). An image super control program for controlling the super of a commercial sponsor's logo or the like is transmitted using data broadcasting. Further, the broadcast station transmits a second event message in a second broadcast specific section (for example, the broadcast time of the main program) where the second content (for example, the main program) is broadcast. At this time, identification information b for identifying the second content is described in the private area (Private_data_byte) of the second event message.

  In the second broadcast specific section, when the identification information b for identifying the second content is described in the private area (Private_data_byte) of the received event message by the image super control program, It is determined that it is a broadcast specific section, it is determined whether event message reception is recorded in the storage area A, and if there is no event message reception record in the storage area A, a predetermined content is displayed on the video of the second content. Superimpose images. FIG. 2 shows a display example when a predetermined image (provided by XXX Corporation) is superposed on the video of the second content. The predetermined image may be distributed together with the image super control program by broadcasting, or may be acquired from a predetermined server when the receiver is connected to a communication line.

  On the other hand, when the event message is received and recorded in the storage area A, the image of the second content is not superposed. FIG. 3 shows a display example when a predetermined image is not superposed on the video of the second content.

  When the first content in the first broadcast specific section is not viewed in this way, a broadcast station is displayed on the broadcast video of the second content when the second content in the second broadcast specific section is viewed thereafter. Superimpose the specified image.

Hereinafter, specific embodiments will be described.
<First Embodiment>
A first embodiment of the present invention will be described.

  FIG. 4 is a block diagram of the broadcasting system according to the first embodiment of the present invention, in which 1 is a broadcasting station and 2 is a receiver.

  FIG. 5 is a block diagram of the broadcasting station 1.

  As shown in FIG. 5, the broadcasting station 1 includes an event message sending unit (EM sending unit) 11, a BML sending unit 12, a data broadcast multiplexing unit 13, a video / audio sending unit 14, and a TS sending unit 15. Prepare.

  The event message sending unit (EM sending unit) 11 sends the first event message to the first broadcast specific section and sends the second event message to the second broadcast specific section. The event message must be transmitted at least at the start and end of each broadcast specific section in order to specify the broadcast time of the first broadcast specific section or the second broadcast specific section. The number of event messages to be sent is determined within a range not departing from the gist of the present invention. For example, the number of transmissions that can recognize the specific section, for example, once per second is transmitted. In order to specify the first broadcast specific section, for example, when there are a plurality of commercials of different sponsors, identification information for identifying the broadcast specific section is added to the private area (Private_data_byte) of the event message. Similarly, when there are a plurality of programs, identification information for identifying the broadcast specific section is added to the private area (Private_data_byte) of the event message.

  The BML sending unit 12 specifies an event message reception recording program for causing the receiver to receive and record an event message sent from the broadcasting station 1, and a broadcast section of the second content (program content), and receives and records the event message. To determine whether or not to superimpose a predetermined image on the video of the second content (program content) and to transmit an image super control program for superimposing the image on the video. The event message reception recording program is preferably sent at least earlier than the start time of the first broadcast specific section. Similarly, it is preferable that the image super control program is sent at least earlier than the start time of the second broadcast specific section. Further, the event message reception recording program and the image super control program may be combined into one program and sent out earlier than at the start of the first broadcast specific section.

  In the present embodiment, as a method for specifying the first broadcast specific section and the second broadcast specific section, different event messages are transmitted in the first broadcast specific section and the second broadcast specific section. An example in which the first broadcast specific section and the second broadcast specific section are specified will be described. However, the present invention is not limited to this, and the above-described method (1) may be used.

  The data broadcast multiplexing unit 13 multiplexes the event message from the event message sending unit (EM sending unit) 11, the event message reception recording program from the BML sending unit 12, and the image super control program to make data broadcasting.

  The video / audio sending unit 14 sends video / audio on the main line side.

  The TS sending unit 15 converts the data broadcast and the video / audio on the main line into a transport stream (TS) and sends it out.

  Next, the receiver 2 will be described. FIG. 6 is a block diagram of the receiver 2.

  The receiver 2 includes a tuner unit 21, a demodulation unit 22, a TS decode 23, an event message detection unit 24, a storage unit 25, an image super determination unit 26, a video control unit 27, and a display unit 28. Prepare.

  In such a configuration, the tuner unit 21 and the demodulation unit 21 select a channel and select a TS. Then, the TS is decoded by the TS decode 23, and the main line video / audio signal is displayed / output on the output unit 28 by the video control unit 27.

  The event message detection unit 24 operates with an event message reception recording program (BML) received by data broadcasting, detects reception of an event message of data broadcasting, and first broadcasts to the private area (Private_data_byte) of the detected event message. If there is identification information for specifying a specific section, the reception of the event message is recorded in the storage unit 25. Here, the recording unit 25 is not particularly limited, and examples thereof include NVRAM and Greg. Also, the reception of the data broadcast event message is detected, and if there is identification information for specifying the second broadcast specific section in the private area (Private_data_byte) of the detected event message, a detection signal is sent to the image super determination unit 26. .

  The image super determination unit 26 operates with an image super control program (BML) received by data broadcasting. When receiving an event message having identification information for specifying the second broadcast specific section (for example, the broadcast time of the program) from the event message detection unit 24, the reception of the event message specifying the first broadcast specific section is received. It is determined whether the recording is stored in the storage unit 25. If no event message is received and recorded in the storage unit 25, an instruction to superimpose a predetermined image on the video of the second content is output to the video control unit 27. On the other hand, if there is an event message reception record in the storage unit 25, no instruction is output.

  The video control unit 27 superimposes a predetermined image on the video of the second content when the image super determination unit 26 does not receive and record the event message in the storage unit 25. Although it is an image superposed on the video of the second content, a still image (eg, Gif or Jpeg) or a moving image (such as ming) may be sent together with the program by data broadcasting, or the receiver may When connected to a communication line, it may be acquired from a broadcast station server or a sponsor server.

  Next, the operation of the above configuration will be described. In the following example, the first content is a commercial and the second content is a program provided by a commercial sponsor. Also, as identification information for identifying each commercial, each commercial is distinguished such as “CM01” and “CM02”, and in order to generalize the description of the following operation, the numerical part of each identifier is represented by “*”. * ". Similarly, the main program is distinguished as identification information for identifying the main program corresponding to each commercial, such as “MAIN01” and “MAIN02”, and the following description of the operation is performed by generalizing each identifier. The numerical part is represented as “**”. In the private area (Private_data_byte) of the first event message that specifies the first broadcast specific section (commercial), “CM **” is described as identification information for identifying the commercial. In the private area (Private_data_byte) of the second event message that specifies the second broadcast specific section (program main part), “MAIN **” is described as identification information for identifying the program main part. .

  First, the BML sending unit 12 of the broadcasting station 1 sends out an event message reception recording program and an image super control program. The event message reception recording program records “CM **” in the G-reg_ area of the storage unit 25 when “CM **” is described in the private area (Private_data_byte) of the received event message. is there. The event message reception recording program notifies the image super determination unit 26 of the detection of the second event message when “MAIN **” is described in the private area (Private_data_byte) of the received event message. The event message reception recording program is sent out earlier than the start of the first broadcast specific section. Further, the image super control program is sent out earlier than the start time of the second broadcast specific section.

  The event message sending unit 11 of the broadcasting station 1 describes identification information “CM **” for identifying a commercial in the private area (Private_data_byte) of the first event message, and the event message is included in the first broadcast specific section. To send. Also, identification information “MAIN **” for identifying the main program corresponding to “CM **” is described in the private area (Private_data_byte) of the second event message, and the event message is included in the second broadcast specific section. To send.

  Next, the operation of the receiver 2 will be described. FIG. 7 is an operation flowchart for receiving and recording event messages of the receiver 2.

  First, the event message detection unit 24 of the receiver 2 monitors reception of an event message while selecting the broadcast station 1 (Step 100).

  If reception of the event message is detected and the identification information “CM **” is described in the private area of the detected event message (Step 101), “CM **” is stored in the storage unit 25 (G-reg_ area). "Is recorded (Step 102). If the identification information “MAIN **” is described in the private area of the detected event message (Step 103), the image super determination unit 26 is notified of the detection of the second event message (Step 104).

  On the other hand, if the reception of the event message is not detected or the identification information “CM **” or “MAIN **” is not described in the private area of the detected event message, the process returns to Step 100 and monitoring is continued.

  Next, the flow of operations when the receiver 2 is viewing a program will be described. FIG. 8 is a flowchart of the operation of the receiver 2 when viewing a program.

  The image super determination unit 26 of the receiver 2 determines whether or not the content being viewed by selecting the broadcast station 1 is the main program (Step 200). Specifically, the event message detection unit 24 detects an event message in which identification information “MAIN **” for identifying the main part of the program is described in the private area (Private_data_byte), and the detection is detected by the image super determination unit 26. When notified, the image super determination unit 26 determines that the content being viewed is the main program.

  If the main program is being viewed (Step 201), it is determined whether "CM **" corresponding to "MAIN **" is recorded in the storage unit 25 (G-reg_ area) (Step 202). If not recorded, the predetermined image is superposed on the video of the program (Step 203). Then, timer processing is started (Step 204), and the timer is measured (Step 205). When a predetermined time has elapsed from the start of the timer measurement (Step 206), the superimposition of the image is stopped (Step 207).

  On the other hand, when “CM **” corresponding to “MAIN **” is recorded in the storage unit 25 (G-reg_ area) (Step 202), the program ends without performing super on the main video image. .

  As described above, in the first embodiment, during commercial (CM) broadcasting, the channel is changed to another TV station, and when the commercial (CM) broadcasting ends, the channel is returned to view the program content again. Even if the program content is being watched, the sponsor's logo is superposed on the video while viewing the program content, and the viewer will watch the sponsor's logo together with the video of the program. It is valid.

<Second Embodiment>
A second embodiment will be described.

  Digital broadcasting is broadcasted by a transport stream (TS), and there is a recording / playback device that records not only video / audio TSs but also data broadcasting TSs when recording broadcasted programs. Therefore, the second embodiment is an embodiment in which the present invention is applied to a recording / playback device that records not only video / audio TS but also data broadcasting TS and the like.

  FIG. 9 is a block diagram of the recording / reproducing apparatus 3 in the second embodiment.

  The recording / reproducing apparatus 3 has the same basic configuration as that of the receiver 2 of the first embodiment, but includes a recording unit 31 that directly records a broadcast TS (transport stream) and reproduces the reproduced video. -The difference is that audio and the like are output to an external output unit (TV, etc.).

  Further, at the time of program reproduction, the TS (transport stream) stored in the storage unit 31 is directly input to the TS decoder unit 23.

  Further, the event message reception recording program and the image super control program sent out from the BML sending unit 12 are different. Hereinafter, a description will be given centering on differences from the first embodiment.

  The BML sending unit 12 is similar in that it sends an event message reception recording program sent from the broadcast station 1 and an image super control program.

  However, it is different in that the image super control program also supports recording. In other words, in addition to the first embodiment described above, the image super control program has a function of determining how much of what is currently being played has been broadcast. . For example, during playback, the current time of the recording / playback apparatus 3 is compared with the time of the TOT in the TS to be played back, and the current time of the recording / playback apparatus 3 and the time of the TOT in the TS being played back is a predetermined time (number of days). If the distance is more than the above, the predetermined image is not superposed on the video of the second content regardless of whether or not the event message containing the identification information of the first content is recorded in the storage unit 25. In addition, a program for operating the image super determination unit 26 is additionally written. The reason for this configuration is that, in the case of recording / playback, there is a case where a considerable amount of time has passed since the actual broadcast date and time, and in such a case, it is considered that the sponsor effect is also amortized. is there. Moreover, displaying past images or the like too much may lead to a downgrading of the image of a company such as a sponsor.

  Next, the operation of the second embodiment will be described. FIG. 10 is an operation flowchart for receiving and recording an event message of the recording / reproducing apparatus 3.

  First, the event message detection unit 24 of the recording / playback apparatus 3 monitors an event message during content playback (Step 300).

  If the content is played back without skipping or fast-forwarding and an event message is detected, if the identification information “CM **” is described in the private area of the detected event message (Step 301), the storage unit 25 ( “CM **” is recorded in the (G-reg_ area) (Step 302). If the identification information “MAIN **” is described in the private area of the detected event message (Step 303), the image super determination unit 26 is notified of the detection of the second event message (Step 304). Note that no event message is detected when the content is skipped or fast-forwarded.

  On the other hand, if the reception of the event message is not detected or the identification information “CM **” or “MAIN **” is not described in the private area of the detected event message, the process returns to Step 300 and monitoring is continued.

  Next, a flow of operation of the recording / playback apparatus 3 when viewing a program will be described. FIG. 11 is a flowchart of the operation of the recording / playback apparatus 3 when viewing a program.

  First, the recording / reproducing apparatus 3 calculates the difference between the TOT time in the TS to be recorded / reproduced and the current time of the recording / reproducing apparatus 3, and if the difference is less than the predetermined number of days (Step 400), the process proceeds to Step 402. On the other hand, if the difference is equal to or greater than the predetermined number of days, the super process is not performed and the process ends.

  The image super determination unit 26 of the receiver 2 determines whether the content being played back is the main program (Step 401). Specifically, the event message detection unit 24 detects an event message in which identification information “MAIN **” for identifying the main part of the program is described in the private area (Private_data_byte), and the detection is detected by the image super determination unit 26. When notified, the image super determination unit 26 determines that the content being viewed is the main program.

  If it is the main program (Step 402), it is determined whether or not “CM **” corresponding to “MAIN **” is recorded in the storage unit 25 (G-reg_ area) (Step 403). If not recorded, the predetermined image is superposed on the main video (Step 404). Then, the timer process is started (Step 405), and the timer is measured (Step 406). When a predetermined time has elapsed from the start of the timer measurement (Step 407), the image superimposition is stopped (Step 408).

  On the other hand, if “CM **” corresponding to “MAIN **” is recorded in the storage unit 25 (G-reg_ area) (Step 403), the process ends without performing super on the main video. .

  According to the second embodiment, even when the broadcast content is recorded and the viewing of the recorded commercial (CM) is skipped by fast-forwarding or the like at the time of playback, In the video, a logo such as a sponsor is superposed, and a viewer views the logo such as a sponsor.

<Third Embodiment>
In the third embodiment, in addition to the first and second embodiments, when the viewer inputs a predetermined password, the process of superimposing the image on the video of the program is stopped.

  In order to perform such an operation, the image super control program, in addition to the first and second embodiments, has a function for displaying a password input screen on the content and when the password is input. And a function of canceling the process of superimposing the image on the video of the program.

  The viewer accesses the home page of the sponsor or broadcast station that provides the program content, obtains a password, and inputs the password using the remote controller of the receiver 2 or the like. FIG. 12 shows an example of a password input screen displayed on the receiver 2.

  When the password is input, the image super determination unit 26 checks the password included in the image super control program. If the password matches, the image super determination unit 26 stops the image super processing on the video of the program.

  In the third embodiment, even if the first content such as a broadcast commercial (CM) is not viewed, the password obtained when other acts are performed instead of viewing the first content. By inputting, it is possible to view the second content whose image is not superposed.

  As is clear from the above description, each unit can be configured by hardware, but can also be realized by a computer program. In this case, functions and operations similar to those in the above-described embodiments and examples are realized by a processor that operates according to a program stored in the program memory.

  Although the present invention has been described with reference to the preferred embodiments, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea.

DESCRIPTION OF SYMBOLS 1 Broadcasting station 2 Receiver 3 Recording / reproducing apparatus 11 Event message transmission part (EM transmission part)
12 BML transmission unit 13 Data broadcast multiplexing unit 14 Video / audio transmission unit 15 TS transmission unit 21 Tuner unit 22 Demodulation unit 23 TS decode 24 Event message detection unit 25 Storage unit 26 Image super determination unit 27 Video control unit 28 Display unit

Claims (16)

A content viewing control method,
The broadcast station sends a specific signal to the first broadcast specific section where the first content is broadcast,
The receiver records the reception of the specific signal during channel selection of the broadcast station,
The receiver determines whether or not the specific signal is received and recorded when viewing the second content broadcast in the second broadcast specific section. If the specific signal is not received and recorded, A content viewing control method for superimposing a predetermined image on the video of the second content. The broadcasting station sends a specific signal using data broadcasting,
The broadcast station records the reception of the specific signal during channel selection of the broadcast station, and determines whether the reception and recording of the specific signal is performed when viewing the content broadcast in the second broadcast specific section. 2. The content viewing control method according to claim 1, wherein when the specific signal is not received and recorded, a program for superimposing the predetermined image on the video of the second content is transmitted using data broadcasting. . When the content stream and the data broadcast stream are recorded together and the data broadcast stream is also played back when the content stream is played back,
The receiver records a specific signal transmitted from the data broadcast stream to the first broadcast specific section by reproducing the first content of the content stream,
The receiver determines whether the specific signal is recorded during reproduction of the second content of the content stream, and if the specific signal is not recorded, the video of the second content The content viewing control method according to claim 2, wherein the predetermined image is superposed on the content. Compare the time information in the content stream with the current time,
When the recording time and the current time are separated by a predetermined number of days or a predetermined time or more, the predetermined image is not superposed on the video of the second content even if the specific signal is not recorded. Item 4. The content viewing control method according to Item 3. The content viewing control method according to any one of claims 1 to 4, wherein the specific signal is an event message transmitted by data broadcasting. The content viewing control method according to any one of claims 1 to 5, wherein the predetermined image is transmitted to a receiver by data broadcasting, or is acquired by the receiver via a communication line. The content viewing control method according to any one of claims 1 to 6, wherein the receiver cancels the process of superimposing the predetermined image on the video of the second content when the predetermined password is input. A broadcasting system,
The broadcasting station
Having a specific signal sending means for sending a specific signal in a first broadcast specific section in which the first content is broadcast;
The receiver
Receiving and recording means for recording reception of the specific signal during channel selection of the broadcasting station;
When viewing the second content broadcast in the second broadcast specific section, it is determined whether or not the specific signal is received and recorded. If the specific signal is not received and recorded, the second content is A broadcast system comprising image display control means for superimposing a predetermined image on a video of content. The specific signal sending means sends a specific signal using data broadcasting,
9. The broadcasting system according to claim 8, wherein the reception recording unit and the image display control unit operate according to a program transmitted by data broadcasting. Recording means for recording the content stream and the data broadcast stream;
The reception recording means records the specific signal sent from the data broadcast stream to the first broadcast specific section by playing back the first content of the content stream,
The image display control means determines whether or not the specific signal is recorded during reproduction of the second content of the content stream, and if the specific signal is not recorded, the second content The broadcasting system according to claim 9, wherein the predetermined image is superposed on the video of the video. The image display control means compares the time information in the content stream with the current time, and if the recording time and the current time are separated from each other by a predetermined number of days or a predetermined time, the recording of the specific signal is performed. The broadcasting system according to claim 10, wherein the predetermined image is not superposed on the video of the second content even if it is not performed. The broadcasting system according to claim 8, wherein the specific signal is an event message transmitted by data broadcasting. The broadcasting system according to any one of claims 8 to 12, wherein the predetermined image is transmitted to a receiver by data broadcasting, or is acquired by the receiver via a communication line. The broadcast system according to any one of claims 8 to 13, wherein the image display control unit cancels the process of superimposing the predetermined image on the video of the second content when a predetermined password is input. A recording and playback machine,
Recording means for recording the broadcast content stream and the data broadcast stream;
Receiving and recording means for recording reception of a specific signal transmitted from a data broadcast stream reproduced by the recording means to a first broadcast specific section where the first content is broadcast;
When reproducing the second content from the content stream, it is determined whether or not the specific signal is received and recorded in the reception and recording means, and if the specific signal is not received and recorded, the second content of the second content is recorded. A recording / reproducing apparatus having an image display control means for superimposing a predetermined image on a video. A data broadcasting program,
A process of recording reception of a specific signal transmitted in a first broadcast specific section in which the first content is broadcast;
When viewing the second content broadcast in the second broadcast specific section, it is determined whether or not the specific signal is received and recorded. If the specific signal is not received and recorded, the second content is A program that causes a receiver to execute processing for superimposing a predetermined image on a video of content.

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