JP7146615B2 - Recording/playback device and recording/playback method - Google Patents

Description

TECHNICAL FIELD Embodiments of the present invention relate to a recording/reproducing apparatus and a recording/reproducing method.

2. Description of the Related Art In recent years, the viewing history of content via television and the Internet has been analyzed. From such analysis, it is possible to infer, for example, preferences of individual viewers. It is desired to utilize such analysis results in various fields.

WO2007/132899

A problem to be solved by the present invention is to provide a recording/reproducing apparatus and a recording/reproducing method capable of recording advertisements that match the tastes of viewers.

A recording/playback apparatus of an embodiment includes a recording processing unit that records a received broadcast program, a playback processing unit that plays back the recorded program, and replaces a first advertisement permitted to be replaced in the broadcast program with a predetermined advertisement. an advertisement replacement unit; and an advertisement storage unit that stores a second advertisement based on the viewer's preference analyzed from the viewer's viewing history, wherein the advertisement replacement unit adds the second advertisement to the broadcast program being received. 1, when the main part of the broadcast program is started, an application for realizing the broadcast communication function cooperation service is started in a non-display state on the broadcast video, and the broadcast being received is activated. When an event message indicating the start of the first advertisement included in the broadcast signal of the program is received, the first advertisement of the broadcast program for which the second advertisement stored in the advertisement storage unit is being received is received. The recording processing unit generates a recorded program by recording the first advertisement in the broadcast program in a state in which the first advertisement is replaced with the second advertisement. The advertisement storage unit further stores a plurality of advertisements based on the preferences of each of the plurality of viewers as an advertisement group, and the advertisement replacement unit replaces the advertisements to generate the recorded program. The first advertisement replaces the advertisement group, and the recording processing unit records the advertisement group to generate a recorded program set .

FIG. 1 is a schematic diagram illustrating operation of the system according to the first embodiment. FIG. 2 is a diagram illustrating an example of the overall configuration including the system according to the first embodiment; FIG. 3 is a diagram showing main streams and information on a broadcast wave transmission line and a hybridcast transmission line for transmitting broadcast signals according to the first embodiment. FIG. 4 is a diagram illustrating a hardware configuration example of a receiver according to the first embodiment; 5 is a diagram illustrating a configuration example of a functional unit of the management server according to the first embodiment; FIG. 6 is a diagram illustrating a configuration example of a functional unit of the receiver according to the first embodiment; FIG. FIG. 7 is a diagram illustrating an example of functions of the receiver according to the first embodiment; FIG. 8 is a flowchart of an example of a procedure of recording/playback processing in the receiver according to the first embodiment; 9 is a diagram illustrating an example of functions of a receiver according to a modification of the first embodiment; FIG. 10 is a flowchart of an example of a procedure of recording/playback processing in the receiver according to the modification of the first embodiment; FIG. 11 is a diagram illustrating a configuration example of a functional unit of a receiver according to a second embodiment; FIG. FIG. 12 is a diagram illustrating an example of functions of a receiver according to the second embodiment; FIG. 13 is a flowchart of an example of a procedure of recording/playback processing in the receiver according to the second embodiment;

[Embodiment 1]
Embodiment 1 will be described in detail below with reference to the drawings.

(Example of system operation)
FIG. 1 is a schematic diagram illustrating the operation of the system according to the first embodiment as an addressable advertisement (hereinafter also referred to as CM) delivery system. The system of Embodiment 1 distributes addressable commercials for specific viewers, such as commercials that match the tastes of specific viewers, in general commercial frames that are broadcast on broadcast waves.

As shown in FIG. 1, the system of the first embodiment includes a receiver 5000 compatible with broadcasting and communication cooperation services such as Hybridcast, and a management server 3000 that manages the receiver 5000 .

A receiver 5000 receives various broadcast programs and the like. The management server 3000 acquires viewing histories of broadcast programs and the like viewed by the viewer on the receiver 5000 via the Internet via the receiver 5000 and analyzes the viewer's preferences. For example, the management server 3000 obtains an analysis result indicating that viewers who regularly watch the broadcast program “a” are interested in the product “m”, and provides this analysis result to the broadcasting station 1000 .

The advertising company AD acquires the analysis result of the management server 3000 from the broadcasting station 1000 . Then, the advertiser MC of the product "m" is proposed to purchase the CM frame of the broadcast program "a" as an addressable CM frame, and if the advertiser MC agrees to this, a contract is exchanged between them.

The advertising company AD submits a commercial for product "m" to the broadcasting station 1000 based on the contract, and the broadcasting station 1000, via its own CM management server, creates a CM distribution server used for distributing the addressable CM. Send the CM to 4000. The CM of the CM distribution server 4000 is received by the viewer's receiver 5000 and distributed to the viewers who are interested in the product "m".

The management server 3000 acquires the addressable CM distribution record from the receiver 5000 based on the addressable CM frame information acquired from the broadcasting station 1000 , and provides it to the broadcasting station 1000 . The advertising company AD acquires the delivery record from the management server 3000 via the broadcasting station 1000, and notifies it to the advertiser MC as necessary.

In the system of the first embodiment, the receiver 5000 records a CM that matches the preferences of the viewer of the receiver 5000 by using the addressable CM distribution function as described above.

(Schematic configuration of the system)
FIG. 2 is a diagram showing the overall configuration including the system according to the first embodiment.

As shown in FIG. 2, the broadcasting station 1000 has a broadcasting station server 1100 including a CM management server, and a security device 1200 . A broadcasting station 1000 transmits a broadcasting signal by radio waves. Broadcast signals may include signals such as BS broadcasts, CS broadcasts, terrestrial digital broadcasts, and the like. The broadcasting station 1000 also sends out digital broadcasting signals, application control information (AIT: Application Information Table), control information related to presentation by cooperation between broadcasting and communication, and the like.

The application control information informs the receiver 5000 included in the system of the first embodiment of the application linked with the broadcast program, and includes commands and control information for activation and termination.

Regarding the transmission method of the application control signal including the application control information, for example, a transmission method by a dedicated ES (Elementary Stream), a data carousel method in which the same data is repeatedly transmitted, and a control signal file placed on the server of the communication network. There is a method to obtain A Hybridcast-compatible receiver 5000, which will be described later, acquires an application from the designated URL and executes control such as application boundaries according to the instruction of the application control signal.

A broadcasting station 1000 operates a broadcasting station server 1100 . The broadcasting station server 1100 provides the receiver 5000 with metadata such as program titles, program IDs, program summaries, performers, broadcast dates and times, and other data.

The receiver 5000 can receive broadcast signals to receive various broadcast programs and various service information. The receiver 5000 has a function for realizing a broadcast communication function cooperation service in addition to the function of receiving digital broadcasting, which is a basic function. The receiver 5000 may use a broadband network connection function to receive video content from a video content distribution server via a network.

Receiver 5000 has the following functions in addition to the broadband network connection function. These include a function of executing an application in accordance with application control information sent by broadcasting, a function of presenting information through cooperation between broadcasting and communication, and the like.

The receiver 5000 can be connected with a recording medium 5001 such as a data recording/reproducing HDD (Hard Disk Drive) or SSD (Solid State Drive), and can also be connected with a display device 5002 and a speaker system 5003. be. These may be included in receiver 5000 in advance.

As described above, the receiver 5000 functions as a receiving device such as a television and a set-top box that receives broadcast programs from the broadcasting station 1000 and video content from the video content distribution server. Also, the receiver 5000 functions as a recording device such as a recorder that records broadcast programs from the broadcasting station 1000 . The receiver 5000 also functions as a playback device that plays back video content such as recorded programs and Blu-ray discs. The receiver 5000 also functions as a recording/reproducing apparatus that records broadcast programs from the broadcasting station 1000 and reproduces various video contents.

The management server 3000 manages the receiver 5000, acquires the viewing history from the receiver 5000, and analyzes it. As described above, the management server 3000 may automatically transmit the viewing history analysis result to the broadcasting station 1000 .

The management server 3000 also acquires information on addressable CM frames from the broadcasting station 1000 . This information includes, for example, information such as broadcast programs in which addressable CM frames are set, time periods of addressable CM frames, and the like. Based on the addressable CM frame information, the management server 3000 transmits to the receiver 5000 addressable CM information suitable for the receiver 5000 managed by the management server 3000 . In addition, the management server 3000 acquires the delivery record of the addressable CM by the receiver 5000 . The management server 3000 may automatically transmit the delivery record to the broadcasting station 1000 .

As described above, the management server 3000 functions as a transmission device that transmits information on addressable CMs suitable for the receivers 5000 managed by itself to the receivers 5000 .

Also, the system of the first embodiment functions as a transmission/reception system including the receiver 5000 as a receiving device and the management server 3000 as a transmitting device.

An addressable CM submitted from an advertising company AD to the broadcasting station 1000 is transmitted to the CM distribution server 4000 from the CM management server (see FIG. 1) owned by the broadcasting station 1000 . The receiver 5000 receives predetermined addressable CMs among the addressable CMs held by the CM distribution server 4000 .

Here, streams and information on transmission paths will be described with reference to FIG.

FIG. 3 is a diagram showing main streams and information on a broadcast wave transmission line 2100 and a hybridcast transmission line 2200 for transmitting broadcast signals according to the first embodiment. A video stream, an audio stream, application control information, and service information are transmitted on each transmission path.

(Example of receiver hardware configuration)
FIG. 4 is a diagram illustrating a hardware configuration example of the receiver 5000 according to the first embodiment. As shown in FIG. 4, receiver 5000 has broadband content processing section 5100 and broadcast content processing section 5300 . Broadcast content processing unit 5100 has a Hybridcast specification to be connected to a network. The connection destination of the network is, for example, the management server 3000 described above. The broadcast content processing unit 5300 receives broadcast waves.

Broadcast content processing unit 5100 includes IP communication interface 5101 . A stream captured via the IP communication interface 5101 is received by the streaming reception processing unit 5102 , and the demodulated stream is restored to its original array state by the demultiplexer 5303 . A DRAM processing unit 5104 is connected to the demultiplexer 5303, and the DRAM processing unit 5104 can operate a program to execute automatic download, for example.

The video stream separated by the demultiplexer 5303 is decoded by the video decoder 5311 , the audio stream is decoded by the audio decoder 5312 , and the subtitle stream is decoded by the subtitle decoder 5313 .

The decoded video data and caption data are synthesized by the synthesizer 5501 and input to the display device 5002 . The decoded audio data is input to speaker system 5003 via synthesizer 5502 .

Broadcast content processing section 5300 includes broadcast tuner 5301 . A stream received and demodulated by broadcast tuner 5301 is input to descrambler 5302 . In descrambler 5302 , the input stream is descrambled with a key from Conditional Access System (CAS) module 5304 . The stream descrambled by descrambler 5302 is input to demultiplexer 5303 .

Demultiplexer 5303 outputs data for data broadcasting to data broadcasting reception processing section 5330 . Also, the video stream separated by the demultiplexer 5303 is decoded by the video decoder 5311 , the audio stream is decoded by the audio decoder 5312 , and the subtitle stream is decoded by the subtitle decoder 5313 .

The decoded video data and caption data are synthesized by the synthesizer 5501 and input to the display device 5002 . The decoded audio data is input to speaker system 5003 via synthesizer 5502 .

The data broadcasting signal separated by the demultiplexer 5303 is received by the data broadcasting reception processing unit 5330 and input to the data broadcasting engine 5315 . A display signal sent by data broadcasting is input to a synthesizer 5501 and displayed on a display 5002 .

Integrated controller 5200 is provided as means for controlling the overall operation of receiver 5000 . The integrated controller 5200 has an application control section 5201 and a security management section 5202 . Application control section 5201 controls each block of receiver 5000 based on various types of information and control information included in application control information.

In addition, when a broadcast program or the like to be recorded is designated by the user via the GUI 5220 or the like, the integrated controller 5200 encrypts the video data, caption data, audio data, etc. using a predetermined content protection method, After converting into the recording format of , the broadcast program is recorded by recording it on the recording medium 5001 .

Also, when a recorded program or the like to be reproduced is designated by the user via the GUI 5220 or the like, the integrated controller 5200 causes the digital video data, caption data, audio data, etc. recorded on the recording medium 5001 to be read out. , a video decoder 5311, an audio decoder 5312, and a subtitle decoder 5313 to reproduce the recorded program.

The security management unit 5202 manages applications and implements security functions. For example, the security management unit 5202 has an application authentication function and handles authenticated applications as management applications. The security management unit 5202 also has an access control function, a presentation function, an enforcement function, a revocation function for management applications other than broadcasting, and the like. Although control by the security management unit 5202 and control by the application control unit 5201 are separately described here, they may be controlled as one management unit without being divided.

The access control function allows the applications whose use is permitted to refer to broadcasting resources such as video, audio, and metadata SI information, and receiver resources such as video and audio output of the receiver 5000 and network interfaces. Also, an accessible receiver API (Application Programming Interface) is restricted according to the security class of the application.

The presentation control function determines whether or not to overlay the broadcast video, the display area and size, and the display method of the application such as display/non-display based on the intention of the broadcast division. It is also possible to determine whether or not to display auxiliary information such as CMs and messages related to CMs in the application. Furthermore, in an emergency such as a disaster report, for example, the application or its related display can be temporarily hidden to control the full-screen display of the broadcast program.

Revocation is a feature that can disable problematic applications that harm the interests of broadcasters and users.

The application engine 5130 forms an environment for executing applications. As the application engine 5130, for example, an HTML5 browser with an extended API for supporting Hybridcast is used.

The terminal cooperation control unit 5500 is an interface that executes cooperation with an external cooperation terminal.

Here, the recording medium 5001 stores the addressable CM obtained from the CM distribution server 4000 described above. Of the addressable CMs held in the CM distribution server 4000 , the integrated controller 5200 downloads to the recording medium 5001 those that the viewers of the receiver 5000 are likely to like. The addressable CMs held by the CM distribution server 4000 are divided into a plurality of groups with tags such as "car," "sports," and "travel," which represent viewer preferences. The integrated controller 5200 downloads the addressable CM group to which the tag matching the viewer's preference is attached based on the information about the viewer's preference of the receiver 5000 acquired from the management server 3000 .

The addressable CM downloaded to the recording medium 5001 is temporarily stored in the DRAM processing unit 5104 . After that, the addressable CM is separated by the demultiplexer 5303 , the video stream is decoded by the video decoder 5311 , the audio stream is decoded by the audio decoder 5312 , and the subtitle stream is decoded by the subtitle decoder 5313 .

The decoded video data and caption data are synthesized by the synthesizer 5501 and input to the display device 5002 . The decoded audio data is input to speaker system 5003 via synthesizer 5502 . Thereby, the addressable CM is output by the display device 5002 and the speaker system 5003 .

The application control unit 5201 controls each block of the receiver 5000 based on the application control information regarding reproduction of the addressable CM, and reproduces the addressable CM in a predetermined addressable CM frame.

(Management server configuration example)
FIG. 5 is a diagram illustrating a configuration example of functional units of the management server 3000 according to the first embodiment. As shown in FIG. 5, the management server 3000 includes a viewing history acquisition unit 3110, a viewing history analysis unit 3120, a CM information generation unit 3210, a CM information transmission unit 3220, a user attribute storage unit 3310, a viewing history storage unit 3320, and a CM An information storage unit 3330 is provided.

The viewing history acquisition unit 3110 acquires the viewing history of the viewer of the receiver 5000 from the receiver 5000 managed by the management server 3000 . The viewing history includes, for example, the viewing history such as the type and broadcast time period of the broadcast program that was viewed live, the recording history such as the type and broadcast time period of the recorded broadcast program, and the type and playback of the recorded program that was played. Information such as playback history such as time is included. The viewing history acquisition unit 3110 stores the viewing history information in the viewing history accumulation unit 3320 as a broadcast program viewing history 3321, a recording/playback history 3322, and the like.

Viewing history analysis section 3120 analyzes preferences of viewers of receiver 5000 . Such analysis includes information such as broadcast program viewing history 3321 and recording/playback history 3322 stored in viewing history accumulation unit 3320, and information such as gender information 3311 and generation information 3312 stored in user attribute accumulation unit 3310. Information is used. Gender information 3311 and generation information 3312 are attribute information about members of households who own receiver 5000 . Such attribute information can be obtained from viewers via the receiver 5000, for example, by conducting a questionnaire survey prior to purchase of the receiver 5000, or the like. Through such analysis, information such as car enthusiasts, sports enthusiasts, and travel enthusiasts can be obtained from the viewing tendencies of viewers.

CM information generating section 3210 determines addressable CMs that suit the preferences of the viewer of receiver 5000 from information such as preferences estimated by analysis by viewing history analyzing section 3120 .

For example, the viewing history analysis unit 3120 sends an addressable CM about the product "m" to the viewer of the receiver 5000 in an addressable CM frame in which a commercial for the general public about the product "n" of the broadcast program "a" is broadcast. It is determined that it is suitable for providing CM.

In addition to this, in the addressable commercial frame set for the parents of households with children, which is set in the nighttime broadcast program that the parents are likely to watch, we will promote child-related products. It is conceivable to provide an addressable CM.

The CM information generation unit 3210 generates CM information including addressable CM information that matches the preferences of the viewer of the receiver 5000 . Such CM information may be generated for each member of this household. B) Stored in the CM information storage unit 3330 as 3332 . . .

CM information transmission section 3220 transmits CM information (A) 3331, CM information (B) 3332, .

It should be noted that the above functional units of the management server 3000 are merely examples. A predetermined functional unit of the management server 3000 may be divided into a plurality of subdivided functional units. Also, some of the above-mentioned functional units of the management server 3000 may be integrated into one functional unit. Also, the management server 3000 may not have all the functional units listed above, and may have functional units other than the functional units listed above.

(Example of receiver configuration)
FIG. 6 is a diagram showing a configuration example of the functional units of the receiver 5000 according to the first embodiment. As shown in FIG. 6, the receiver 5000 includes an operation reception unit 5610, a CM information acquisition unit 5620, a broadcast reception unit 5710, a video content reception unit 5720, a live viewing processing unit 5730, a recording processing unit 5740, a playback processing unit 5750, A CM acquisition unit 5910 , a CM replacement unit 5920 , a recorded program storage unit 5810 and a CM storage unit 5820 are provided.

The operation reception unit 5610 receives various operations such as live viewing operation, recording operation, recording reservation operation, and playback operation from the user. Input of attribute information such as gender information 3311 and generation information 3312 by the user is also performed via the operation receiving unit 5610 .

The CM information acquisition unit 5620 acquires CM information (A) 3331, CM information (B) 3332, etc. generated by the management server 3000. FIG.

The CM acquisition unit 5910 acquires an addressable CM that matches the preferences of the viewer of the receiver 5000 from the CM distribution server 4000 based on the CM information (A) 3331, CM information (B) 3332, and so on. , CM(A) 5821, CM(B) 5822, . . . As described above, the CM storage unit 5820 is implemented by a hardware configuration such as the DRAM processing unit 5104 that temporarily records cache, and temporarily stores CM (A) 5821, CM (B) 5822, etc. store in Thus, CM(A) 5821, CM(B) 5822, .

The CM replacement unit 5920 replaces the CMs in the addressable CM frames among the CMs included in the broadcast program with arbitrary addressable CMs such as CM (A) 5821, CM (B) 5822, etc. stored in the CM storage unit 5820. replace with

Broadcast receiving section 5710 receives a broadcast signal from broadcasting station 1000 .

The moving image content receiving unit 5720 receives moving image content from a moving image content distribution server or the like via a network such as the Internet. The moving image content distribution server is a server that distributes moving image content such as video content such as video on demand.

The live viewing processing unit 5730 processes live viewing of broadcast programs, video content, and the like. Live viewing is, for example, displaying in real time a broadcast program that is being broadcast at that point in time.

The recording processing unit 5740 performs recording processing of broadcast programs including addressable CMs and the like according to recording operations and recording reservation operations from the user. The recording processing unit 5740 stores a recorded program (A) 5811, a recorded program (B) 5812, . . .

The playback processing unit 5750 reads the recorded program (A) 5811, the recorded program (B) 5812, .

It should be noted that the above functional units of receiver 5000 are merely examples. A predetermined functional unit of the receiver 5000 may be divided into a plurality of subdivided functional units. Also, some of the above-described functional units of receiver 5000 may be integrated into one functional unit. Also, the receiver 5000 may not have all the functional units listed above, and may have functional units other than the functional units listed above.

(Example of receiver function)
Next, an example of functions of the receiver 5000 according to the first embodiment will be described with reference to FIG. FIG. 7 is a diagram illustrating an example of functions of the receiver 5000 according to the first embodiment.

In the example of FIG. 7, it is assumed that the content broadcasted by the broadcasting station 1000 in the order of the main part PRGa, CMx for the general public, and main part PRGb is replaced with the addressable CM (aCM)y by the receiver 5000 and recorded. It is also assumed that CMx for the general public is a CM broadcasted in an addressable CM frame.

The CM acquisition unit 5910 of the receiver 5000 acquires in advance addressable CMy that matches the taste of the viewer.

The CM replacement unit 5920 prepares for CM replacement when the main part PRGa of the broadcast program starts, and replaces the general CMx with the addressable CMy and reproduces it while the general CMx is being broadcast. As a result, in live viewing on the receiver 5000, the addressable CMy is displayed over the general CMx. Since the CM frame of the addressable CMy and the CMx for the general public are set to have the same length, when the reproduction of the addressable CMy ends, the CM frame of the CMx for the general public also ends, and the main part PRGb of the broadcast program starts.

Specifically, replacement of CM by the CM replacement unit 5920 is performed as follows, for example. When the main part PRGa of the broadcast program is started, in the receiver 5000, the Hybridcast application related to distribution of the addressable CMy is activated in a non-display state. When an event message that is included in the broadcast signal and foretells the start of CMx for the general public is received, the Hybridcast application displays a transparent screen or the like overlaid on the broadcast video. This does not prevent viewing of the main part PRGa of the broadcast program. When an event message indicating the start of the CM included in the broadcast signal is received, the acquired addressable CMy is played over the general CMx being broadcast. At the timing when the reproduction of the addressable CMy ends, an event message indicating the end of the CM included in the broadcast signal is received, and the main part PRGb of the broadcast program starts.

On the other hand, the recording processing unit 5740 starts recording processing when the main part PRGa of the broadcast program starts. Also, the recording processing unit 5740 records the addressable CMy after the replacement instead of the general CMx being broadcast. Further, the recording processing unit 5740 continues recording even after the playback of the addressable CMy ends, and ends the recording processing when the main part PRGb of the broadcast program ends. As a result, a content recorded in the order of the main part PRGa, the addressable CMy, and the main part PRGb, for example, a recorded program 5811 is generated.

(Recording and playback processing in the receiver)
Next, an example of recording/playback processing as reception processing by the receiver 5000 of the first embodiment will be described with reference to FIG. FIG. 8 is a flow diagram showing an example of the procedure of recording/playback processing in the receiver 5000 according to the first embodiment.

As shown in FIG. 8, the CM acquisition unit 5910 acquires addressable CMs that match viewers' tastes from the CM distribution server 4000, and stores CMs as CM (A) 5821, CM (B) 5822, and so on. Stored in section 5820 (step S101).

When the recording operation or recording reservation is performed by the user and the broadcast program to be recorded is started, the recording processing unit 5740 starts recording the broadcast program (step S102).

When the CM replacement unit 5920 detects the start of broadcast of the addressable CM frame, it replaces the general CM broadcasted in the addressable CM frame with the addressable CM (step S103).

When the reproduction of the addressable CM ends, the broadcasting of the frame of the addressable CM also ends (step S104).

When the broadcast program to be recorded ends, the recording processing unit 5740 ends recording (step S105).

Thus, the recording/playback processing by the receiver 5000 of the first embodiment is completed.

2. Description of the Related Art In recent years, viewing histories of contents via television and the Internet are collected, and viewers' tastes, purchasing behaviors, and the like are analyzed. As one means of utilizing such analysis results, there is a need for addressable commercial distribution directed to specific viewers.

The system of Embodiment 1 has a CM replacement unit 5920 that replaces a CM frame in a normal broadcast program with an addressable CM and performs switching display. Then, the recording processing unit 5740 records the addressable CM after replacement as it is. Thereby, it is possible to record the addressable CM instead of simply distributing it.

In the system of Embodiment 1, the CM is replaced with an addressable CM analyzed from the viewing history of the receiver 5000 and the attribute of the viewer. As a result, it is possible to replace and record the addressable CM that matches the preference of the viewer of the receiver 5000 .

In the system of Embodiment 1, the start and end of the addressable CM frame are detected by the CM replacement unit 5920 receiving an event message from the broadcasting station 1000, and based on information such as the broadcast time of the addressable CM frame. The start and end of the addressable CM frame may be detected. Alternatively, the start and end of an addressable CM frame may be detected based on image recognition of broadcast content.

(Modification)
A modification of the first embodiment will be described in detail below with reference to the drawings. The modified system is an example in which the order of recording is not necessarily the order of broadcasting. Such a modified system can cope with, for example, the case where the addressable CM to be replaced has not yet been acquired at the start of the broadcast program to be recorded.

FIG. 9 is a diagram illustrating a functional example of the receiver 5000 according to the modification of the first embodiment.

As shown in FIG. 9(a), the recording processing unit 5740 of the receiver 5000 starts recording processing when the main part PRGa of the broadcast program starts.

As shown in FIG. 9(b), for example, when the addressable CMy to be replaced has not yet been acquired, the CM replacement unit 5920 detects the start of broadcasting of an addressable CM frame. Set flag F.

As shown in FIG. 9(c), the recording processing unit 5740 may pause or continue the recording during the broadcast of the CM frame when the addressable CMy is not started to be reproduced.

On the other hand, when the flag F indicating the start position of the addressable CM frame is set, or upon notification from the CM replacement section 5920, the CM acquisition section 5910 starts downloading the addressable CMy to be replaced from the CM distribution server 4000. .

As shown in FIG. 9(d), the CM replacement unit 5920 causes the recording processing unit 5740 to record the addressable CMy at the timing when the main part PRGb of the broadcast program ends, for example, after the download of the addressable CMy ends. As a result, for example, a recorded program 5812 is generated.

That is, in the example of FIG. 9, the recording processing unit 5740 recorded the main part PRGa, the main part PRGb, and the addressable CMy in this order.

Even in this case, when reproducing the recorded program 5812, the reproduction processing unit 5750 reproduces the main part PRGa, the addressable CMy, and the main part PRGb in this order according to the flag F indicating the start position of the addressable CM frame.

FIG. 10 is a flow diagram showing an example of a recording/playback process procedure in the receiver 5000 according to the modification of the first embodiment. In the example of FIG. 10, it is assumed that the addressable CM to be replaced has not yet been acquired at the start of reception of the broadcast program to be recorded.

As shown in FIG. 10, when a recording operation or recording reservation is performed by the user and a broadcast program to be recorded is started, the recording processing unit 5740 starts recording the broadcast program (step S201).

When the CM replacement unit 5920 detects the start of broadcasting of the addressable CM frame, it sets a flag indicating the start position of the addressable CM frame (step S202).

The CM replacement unit 5920 detects the end of the broadcast of the addressable CM frame (step S203).

The broadcast program to be recorded ends (step S204).

On the other hand, the CM acquisition unit 5910 starts acquiring the addressable CM to be replaced in the addressable CM frame included in this broadcast program from the CM distribution server 4000, and the CM replacement unit 5920 waits until the addressable CM is acquired. (Step S205: No).

When the addressable CM is acquired (step S205: Yes), the CM replacement unit 5920 causes the recording processing unit 5740 to record the acquired addressable CM at a predetermined timing (step S206).

The recording processing unit 5740 waits for the end of the broadcast program (step S204) or the end of the recording of the addressable CM (step S206), whichever is later, and ends the recording (step S207).

Thus, steps S205-S206 proceed in parallel with the recording of the broadcast program to be recorded, eg, during steps S203-S207.

With the above, the recording/reproducing process in the receiver 5000 of the modified example ends.

In the system of the modified example of the first embodiment, the order of recording by the recording processing unit 5740 may not be the order of broadcasting, and the playback processing unit 5750 plays back in regular order regardless of the order of recording. As a result, for example, even if the addressable CM to be replaced is not acquired at the time of reception of the broadcast to be recorded, it is possible to download and insert it later.

[Embodiment 2]
The second embodiment will be described in detail below with reference to the drawings. The system of the second embodiment records a plurality of addressable CMs for each of a plurality of users.

(Example of receiver configuration)
FIG. 11 is a diagram showing a configuration example of functional units of a receiver 5000a according to the second embodiment. As shown in FIG. 11, a receiver 5000a includes a user identification section 5630 and a user information storage section 5830 in addition to the configuration of the receiver 5000 of the first embodiment.

User identification unit 5630 identifies members of the household in which receiver 5000a is installed. The user identification unit 5630 has, for example, a camera function, and identifies the user operating the receiver 5000a by image recognition or the like. In the case where the receiver 5000a is configured to be capable of accepting operation instructions by voice, the user identification section 5630 may identify the user from voice information. In addition to this, the user identification unit 5630 may use attribute information related to the user such as gender information 3311 and generation information 3312 possessed by the management server 3000 for user identification. User identification unit 5630 may obtain information from the user himself/herself from operation reception unit 5610 .

The user identification unit 5630 stores information about each identified user in the user information accumulation unit 5830 as user information (A) 5831, user information (B) 5832, and so on. In addition, by linking with the operation history and viewing history of the receiver 5000 of each user, the user information (A) 5831, user information (B) 5832, etc. can be used for each user's preferences and for each user. Information such as addressable CM is included. These pieces of information are based on analysis results by the management server 3000 .

Specifically, for example, the user information (A) 5831 is information about the father of the household, and information such as that the father likes cars as a preference, and that a CM about a car is appropriate as an addressable CM for the father. including. Further, for example, the user information (B) 5832 is information about the children of the household, and includes information such as that the child's preference is to like sports, and that a CM about a baseball is suitable as an addressable CM for children.

User identification section 5630 refers to user information (A) 5831, user information (B) 5832, . Alternatively, the user who gave the reproduction instruction is specified.

Also, the CM replacement unit 5920 here replaces one broadcast CM with a plurality of addressable CMs directed to a plurality of users at the time of CM replacement.

(Example of receiver function)
FIG. 12 is a diagram illustrating a functional example of the receiver 5000a according to the second embodiment. In the example of FIG. 12, the CM acquisition unit 5910 of the receiver 5000a acquires in advance a plurality of addressable CMa, b, and c that match the preferences of each user, for example.

As shown in FIG. 12, the CM replacement unit 5920 causes the recording processing unit 5740 to record a plurality of addressable CMa, b, and c for one broadcast frame of CMx for the general public in the broadcast program to be recorded.

As a result, a recorded program set 5813s in which an addressable CM group gp including a plurality of addressable CMa, b, and c is recorded together with a broadcast program is generated. The recording processing unit 5740 stores this recorded program set 5813 s in the recorded program storage unit 5810 .

When a reproduction operation or a reproduction instruction for the recorded program set 5813s is performed in the receiver 5000a, the user identification unit 5630 identifies the user who performed the reproduction operation or the reproduction instruction.

When reproducing the recorded program set 5813s, the reproduction processing unit 5750 selects one of the addressable CMs gp for the user identified by the user identification unit 5630 from among the addressable CM group gp included in the recorded program set 5813s. Select and play.

(Recording and playback processing in the receiver)
FIG. 13 is a flow chart showing an example of the recording/playback processing procedure in the receiver 5000a according to the second embodiment.

As shown in FIG. 13, the CM acquisition unit 5910 acquires addressable CMa, b, and c that match the preferences of each viewer from the CM distribution server 4000 and stores them in the CM storage unit 5820 (step S301).

The recording processing unit 5740 generates a recorded program set 5813s in which an addressable CM group gp including a plurality of addressable CMs gp is recorded together with a broadcast program, and stores it in the recorded program accumulation unit 5810 (step S302).

When the operation receiving unit 5610 receives a reproduction operation or a reproduction instruction (step S303), the reproduction processing unit 5750 determines whether or not the reproduction operation or the reproduction instruction is for the recorded program set 5813s. (Step S304). If the recorded program set 5813s is not the object (step S304: No), the process proceeds to step S307.

If the recorded program set 5813s is targeted (step S304: Yes), the user identification unit 5630 refers to the user information (A) 5831, the user information (B) 5832, etc., and performs the playback operation. Alternatively, the user who gave the reproduction instruction is identified (step S305).

The reproduction processing unit 5750 selects an addressable CM for the identified user from among the addressable CM group gp of the recorded program set 5813s (step S306).

The reproduction processing unit 5750 starts reproducing the recorded program (step S307).

If the target of reproduction is the recorded program set 5813s, the reproduction processing unit 5750 reproduces the addressable CM selected in step S305 (step S308).

The playback processing unit 5750 ends playback of the recorded program (step S309).

Thus, the recording/playback processing in the receiver 5000a of the second embodiment ends.

In the system of the second embodiment, even if there are a plurality of viewers of the receiver 5000a, it is possible to select and reproduce addressable CMs that match the tastes of individual viewers.

Note that the configuration of the modification of the first embodiment can also be applied to the system of the second embodiment. That is, regardless of whether the recording order of the recorded program set is the broadcasting order, the recorded programs are reproduced in the regular order. Thus, even if one or more of the plurality of addressable CMs to be included in the group of addressable CMs of the recorded program have not been acquired at the start of broadcasting, the recorded program set can be generated.

As described above, in the systems of the first and second embodiments and their modifications, for example, it is possible to display CMs that match the tastes of viewing users.

In the systems of the first and second embodiments and their modifications, not only addressable CMs downloaded in advance from the CM distribution server 4000 and stored in the CM storage unit 5820, but also addressable CMs more suited to the user's taste are selected. It is possible to select.

As a result, the user can view commercials that are more suited to his or her tastes. In addition, the side that provides CM such as advertiser MC and advertising company AD can efficiently distribute the CM to the target audience that they would like to see more of. Also, on the broadcasting station 1000 side, the value of the addressable CM frame increases, leading to an increase in income.

In the systems of Embodiments 1 and 2 and their modifications, the CM is replaced during recording, thereby eliminating the need for CM replacement control during playback and simplifying playback control. The simplification of reproduction control leads to a reduction in the price of the receiver 5000 as a reproduction device, and is also useful in increasing the diffusion rate of the receiver 5000 .

This makes it easier for the user to obtain economic benefits due to the price reduction of the receiver 5000 . Moreover, the commercial provider side and the broadcasting station 1000 side can benefit from a further increase in the number of viewers of addressable commercials due to the spread of the receiver 5000 having the functions described above.

By applying the technology in the systems of Embodiments 1 and 2 and their modifications, even when using a playback device that does not have a recording function, for example, it is possible to replace CM by using removable media and remote viewing. Become.

As a result, the user can obtain more playback environments and view CMs that match his or her tastes. The CM providing side and the broadcasting station 1000 side can receive the merit of a further increase in the number of views of addressable CMs by improving the reproduction environment. Although it is difficult to obtain the playback history when playing back using a removable medium, it is possible to infer the actual number of views from the recording record.

[Other embodiments]
Although only one receiver 5000 is shown for one management server 3000 in the above-described first and second embodiments and their modifications, the present invention is not limited to this. One management server may manage multiple receivers.

In the above-described Embodiments 1 and 2 and their modifications, if the main part and the addressable CM are encoded differently, one stream is re-encoded with the other stream's encoding, or both are re-encoded with different encoding. good too. This makes it possible to simplify the playback process.

In the above-described Embodiments 1 and 2 and their modifications, the addressable CM downloaded to the recorded program storage unit 5810 of the receiver 5000 is reproduced. The addressable CM on the distribution server 4000 may be stream-reproduced.

In the above-described first and second embodiments and their modifications, an example was described in which CM frames in a broadcast program were replaced with addressable CMs. may apply.

Further, each component shown in the above embodiment may be realized by a program installed in a storage such as a hard disk device of a computer. The functions of the present invention may be realized by a computer by causing the computer to read from an electronic medium. Examples of electronic media include recording media such as CD-ROMs, flash memories, removable media, and the like. Furthermore, it may be realized by distributing and storing the constituent elements in different computers connected via a network, and by communicating between the computers that operate each constituent element.

While embodiments of the invention have been described, the embodiments are provided by way of example and are not intended to limit the scope of the invention. This novel embodiment can be embodied in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1000... Broadcasting station 3000... Management server 3110... Viewing history acquisition part 3120... Viewing history analysis part 3210... CM information generation part 3220... CM information transmission part 3310... User attribute accumulation part 3320... Viewing history accumulation Part 3330... CM information storage unit 4000... CM distribution server 5000... Receiver 5610... Operation reception unit 5620... CM information acquisition unit 5710... Broadcast reception unit 5720... Video content reception unit 5730... Live Viewing processing unit 5740 Recording processing unit 5750 Reproduction processing unit 5810 Recorded program storage unit 5820 CM storage unit 5910 CM acquisition unit 5920 CM replacement unit.

Claims (6)

a recording processing unit that records the received broadcast program;
a playback processing unit that plays back a recorded program;
an advertisement replacement unit that replaces the first advertisement permitted to be replaced in the broadcast program with a predetermined advertisement;
an advertisement storage unit that stores a second advertisement based on the viewer's preference analyzed from the viewer's viewing history,
The advertisement replacement unit
When the first advertisement is included in the broadcast program being received, when the main part of the broadcast program is started, the application for realizing the broadcast communication function cooperation service is displayed in a non-display state on the broadcast video. start up,
When an event message indicating the start of the first advertisement included in the broadcast signal of the broadcast program being received is received, the second advertisement stored in the advertisement storage unit is received in the broadcast program being received. Replaced by superimposed display on the broadcast video of the first advertisement,
The recording processing unit
recording the broadcast program with the first advertisement replaced with the second advertisement to generate a recorded program ;
The advertisement storage unit
further storing a plurality of advertisements based on the preferences of each of a plurality of viewers as an advertisement group;
The advertisement replacement unit
replacing the first advertisement with the group of advertisements when replacing advertisements to generate the recorded program;
The recording processing unit
recording the group of advertisements to generate a recorded program set;
Recording and playback device. The activation of the application in a non-display state and the display of the second advertisement superimposed on the broadcast video of the first advertisement by the advertisement replacement unit are performed while the broadcast program being received is being viewed live. takes place during
The recording/playback apparatus according to claim 1. The advertisement replacement unit
When the second advertisement is not stored in the advertisement storage unit, the second advertisement is replaced with the second advertisement after the second advertisement is stored in the advertisement storage unit. flag the start position of one ad,
3. The recording/reproducing apparatus according to claim 1 or 2. The recording processing unit
When the second advertisement is stored in the advertisement storage unit after the main program is recorded, the second advertisement is stored in an order different from the original broadcast order of the main program and the first advertisement in the main program. record ads for
The playback processing unit
According to the flag, in the same order as the original broadcast order of the main part and the first advertisement in the main part, the main part and the second advertisement recorded by the recording processing unit are reproduced.
4. The recording/playback device according to claim 3. A user identification unit that identifies a plurality of the viewers,
The user identification unit
when the recorded program set is played back by the playback processing unit, identifying the viewer who performed the playback operation of the recorded program set;
The playback processing unit
Playing an advertisement based on the identified viewer's preference among the advertisement group included in the recorded program set;
The recording/playback apparatus according to claim 1 . A recording/playback method executed by a recording/playback device for recording broadcast programs and playing back recorded programs,
storing a second advertisement based on the viewer's preference analyzed from the viewer's viewing history in the advertisement storage unit;
When the main part of the broadcast program which is being received and which includes the first advertisement for which replacement is permitted is started, the application for realizing the broadcast communication function cooperation service is displayed on the broadcast moving image as non-existent. start in the display state,
When an event message indicating the start of the first advertisement included in the broadcast signal of the broadcast program being received is received, the second advertisement stored in the advertisement storage unit is received in the broadcast program being received. Replaced by superimposed display on the broadcast video of the first advertisement,
recording the broadcast program with the first advertisement replaced with the second advertisement to generate a recorded program ;
further storing a plurality of advertisements based on the preferences of each of a plurality of viewers as an advertisement group in the advertisement storage unit;
When replacing advertisements to generate the recorded program, replacing the first advertisement with the group of advertisements and recording the group of advertisements to generate a recorded program set;
Recording playback method.

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