JP4268496B2 - BROADCAST RECORDING SYSTEM, RECORDING DEVICE, BROADCAST DEVICE, AND RECORDING PROGRAM FOR CONSERVING RECORDING MEDIA RECORDING VOLUME REQUIRED FOR RECORDING CONTENT - Google Patents

Description

  The present invention relates to a broadcast recording system for recording and viewing broadcast content, and more particularly to a technique for reducing the usage capacity of a recording medium for recording content.

A viewer such as a television broadcast can not only view the content received in the broadcast time zone in real time, but also record the content with a recording device, and reproduce and view the content at the convenience of the viewer.
Patent Document 1 discloses a technique for recording and reproducing content as digital data on a recording medium such as a hard disk.

FIG. 19 is a diagram illustrating a configuration of a conventional recording apparatus 100. The recording apparatus 100 includes functional blocks of a receiving unit 101, a switch 102, an output unit 103, a hard disk 104, and a CPU 105.
The receiving unit 101 converts the received content into an MPEG2 (Moving Picture Experts Group phase 2) stream and outputs the stream. For example, when the video input is an NTSC (National Television System Committee) analog signal, the tuner in the receiving unit 101 is tuned to the target content, converted into an MPEG2 stream by the MPEG2 encoder, and output. Alternatively, when the video input is a digital signal obtained by multiplexing MPEG2 stream format content in an MPEG2 transport stream (hereinafter referred to as TS: Transport Stream), the target MPEG2 stream is input from the TS input by the digital tuner in the receiving unit 101. Is extracted and output.

The switch 102 inputs the content to be recorded from the receiving unit 101 and outputs it to the hard disk 104 during the recording operation, and reads the content to be reproduced from the hard disk 104 and outputs it to the output unit 103 during the playback operation.
The output unit 103 acquires the MPEG2 stream and outputs it to a television connected to the recording apparatus 100. At this time, if the connected device is an NTSC television, it is decoded into an NTSC signal and output.

The hard disk 104 records the MPEG2 stream input from the switch 102 in the recording area at the time of recording, and reads out the MPEG2 stream of the content requested to be reproduced and outputs it to the switch 102 at the time of reproduction.
The CPU 105 controls the operations of the receiving unit 101, the switch 102, the output unit 103, and the hard disk 104 in order to execute a user operation or a recording operation or a reproduction operation of content requested by a recording reservation preset by the user. . When a recording operation is instructed by a user operation or a recording reservation, the CPU 105 causes the receiving unit 101 to acquire the content desired by the user, causes the switch 102 to output the MPEG2 stream input from the receiving unit 101 to the hard disk 104, The MPEG2 stream input to the hard disk 104 is recorded.

  When a reproduction operation is instructed by a user operation, the CPU 105 causes the hard disk 104 to read the MPEG2 stream of the content desired by the user, and causes the switch 102 to output the MPEG2 stream input from the hard disk 104 to the output unit 103 for output. The MPEG2 stream input to the unit 103 is decoded, and the obtained video / audio signals are output to an external television. When reproducing the content recorded on the hard disk 104 in parallel with the recording, these instructions are issued simultaneously, and the switch 102 outputs the MPEG2 stream input from the receiving unit 101 to the hard disk 104 and simultaneously from the hard disk 104. The input MPEG2 stream is output to the output unit 103.

The recording apparatus having the above configuration can record content desired by the user and reproduce it at a time convenient for the user.
In particular, as recording devices using large-capacity recording media such as hard disks and DVD-RAMs become widespread, it becomes possible to record content with high-quality digital data with a large amount of information, and there are many users of these recording devices. There is a growing tendency to record these contents and watch them later. In order to respond to the user's request to record such a large amount of content, the capacity of the recording device is required to be increased.
Japanese translation of PCT publication No. 2002-521978 (page 13, FIG. 1)

However, increasing the capacity of the recording medium causes an increase in the price of the recording apparatus. However, if a large amount of content is recorded by increasing the compression rate and recording the content, there is a problem that the video quality deteriorates.
In view of such a problem, the first object of the present invention is to provide a broadcast recording system capable of reducing the used capacity of a recording medium for recording content as compared with the conventional one.

A second object of the present invention is to provide a recording device and a broadcasting device useful in the broadcast recording system.
Furthermore, a third object of the present invention is to provide a recording program that causes a computer to function as the recording apparatus.

In order to achieve the first object, a broadcast recording system according to the present invention is a broadcast recording system having a broadcast device, a recording device, and a distribution device, wherein the content includes at least video and audio, and stored information. Is information specifying distribution content for distributing video and audio having the same content as video and audio of the predetermined content from the distribution content group that can be distributed by the distribution device The broadcasting device relates to the predetermined content when determining that the content for distribution related to the predetermined content can be distributed by the distribution device, and when determining that the content can be distributed. The storage information for specifying the content for distribution is generated, and the generated storage information is converted into the video, audio and content of the predetermined content. And storing information generating means for adding to the broadcast content to broadcast video and audio is Flip, wherein a broadcast content, which the storage information is added, or the storage information those are added and a broadcasting means for broadcasting, the recording apparatus, the broadcast content, a receiving means for receiving from said broadcasting apparatus, when the stored information in the received broadcast content by the receiving means is added Determining that the broadcast content is not to be recorded, and if no storage information is added to the received broadcast content, the determination means determines that the broadcast content is to be recorded, and the determination means When it is determined that the received broadcast content is to be recorded, the content for recording the received broadcast content in a recording area. And Tsu recording means, when it is determined not to record the broadcast content that is the received by the determining means, storage information of the storage information added to the broadcast content, which is the received, recorded into the recording area Recording means, and request means for requesting the delivery apparatus to deliver the delivery content specified by the recorded stored information, wherein the delivery apparatus distributes the delivery content by the request means When receiving the request, the distribution content is distributed to the recording device, and the recording device has the same content as the predetermined content after the broadcast content having the same content as the predetermined content is broadcast. It is characterized in that the content for distribution is received and reproduced.

In order to achieve the second object, the recording apparatus according to the present invention includes a content including at least video and audio, and stored information includes video and audio having the same content as the video and audio of the predetermined content. Broadcast content that is the same as video and audio of the predetermined content, and is information that identifies content for distribution to be distributed by the distribution device from a group of distribution content that can be distributed by the distribution device a broadcast content for, that the storage information is added, or the from the broadcast device storing information broadcasts things have been added, a receiving means for receiving the broadcast content, the receiving means When the stored information is added to the broadcast content received by the above, it is determined not to record the broadcast content, When storage information is not added to the received broadcast content, a determination unit that determines to record the broadcast content, and a case in which the determination unit determines to record the received broadcast content And a content recording unit for recording the received broadcast content in a recording area, and when the determination unit determines not to record the received broadcast content, the content is added to the received broadcast content. the storage information that is, the storage information recording means for recording into the recording area, and a request means for requesting to said distribution apparatus to distribute the distribution content specified by the recorded information stored, the and wherein the reproducing the distribution contents delivered in response to the request from the delivery device.

In order to achieve the third object, the recording program according to the present invention includes a content including at least video and audio, and stored information includes video and audio having the same content as the video and audio of the predetermined content. Broadcast content that is the same as video and audio of the predetermined content, and is information that identifies content for distribution to be distributed by the distribution device from a group of distribution content that can be distributed by the distribution device a broadcast content for, that the storage information is added, or the from the broadcast device storing information broadcasts things have been added, a receiving step of receiving the broadcast content, the receiving step When the storage information is added to the broadcast content received by the recording, the broadcast content is recorded. And determining that the broadcast content is to be recorded, and recording the received broadcast content by the determination step when storage information is not added to the received broadcast content. A content recording step for recording the received broadcast content in a recording area when it is determined, and the received broadcast content when the determination step determines that the received broadcast content is not recorded. the storage information added to use content, and storing the information recording step of recording to the recording area, the request step of requesting to the distribution apparatus to distribute the distribution content specified by the recorded information stored A playback stage for playing back the content for distribution distributed in response to the request from the distribution device. Characterized in that to execute the steps of the-up the computer.

  With the above configuration, the broadcast recording system according to the present invention can provide information for receiving distribution of content for distribution related to predetermined content to a recording apparatus together with the content for broadcast related to the predetermined content during broadcasting. it can. The recording device records the storage information added to the broadcast content acquired by broadcasting, and then receives distribution of the distribution content having the same content as the broadcast content broadcast using the recorded storage information. The user of the recording apparatus can view the distributed distribution content.

Therefore, it is possible to record distribution content that is the same as the broadcast content and has the same video quality from the distribution device, so that the recorded broadcast content is recorded. It is possible to view without reducing the video quality of the content while reducing the amount of area used.
Further, when the storage information is added to the broadcast content received by the receiving unit, the recording apparatus determines that the broadcast content is not recorded, and stores the storage information in the received broadcast content. Is not added, a determination unit that determines that the broadcast content is to be recorded, and the received broadcast content is determined when the determination unit determines that the received broadcast content is to be recorded. Since the content recording means for recording in the recording area is provided, not only the stored information but also the broadcast content broadcast can be recorded in the recording area, so that the broadcast content broadcast by the broadcasting device and the distribution means Compared with the content for distribution, if there are any favorable conditions, content with favorable conditions No longer it is possible to miss the opportunity to watch.
In addition, when the storage information cannot be acquired from the broadcast content that has been broadcast, the broadcast content can be recorded in the recording area. Therefore, when the storage information can be acquired from the broadcast content, the recording device Even when storage information cannot be acquired from the broadcast content while reducing the use capacity of the recording area by not recording the content, the recording device records the broadcast content so that the user can surely view the content. it can.
With the above configuration, the recording apparatus according to the present invention is
The storage information added to the broadcast content acquired by broadcasting is recorded, and then the distribution content having the same content as the broadcast content broadcasted is received using the recorded storage information. Can be watched.

Therefore, the used capacity of the recording area can be greatly reduced compared to the case of recording broadcast content. Further, even when a recording instruction is given by the user after a while after the broadcast content broadcast starts, the recording device records the storage information, and the distribution device uses the recorded storage information to distribute the distribution content. Therefore, the user of the recording device can view the distribution content from the top.
Further, when the storage information is added to the broadcast content received by the receiving unit, the recording apparatus determines that the broadcast content is not recorded, and stores the storage information in the received broadcast content. Is not added, a determination unit that determines that the broadcast content is to be recorded, and the received broadcast content is determined when the determination unit determines that the received broadcast content is to be recorded. Since the content recording means for recording in the recording area is provided, not only the stored information but also the broadcast content broadcast can be recorded in the recording area, so that the broadcast content broadcast by the broadcasting device and the distribution means are distributed. Compared with the content for distribution, if any of the conditions are favorable, It is not necessary to miss the opportunity to.
In addition, when the storage information cannot be acquired from the broadcast content that has been broadcast, the broadcast content can be recorded in the recording area. Therefore, when the storage information can be acquired from the broadcast content, the recording device Even when storage information cannot be acquired from the broadcast content while reducing the use capacity of the recording area by not recording the content, the recording device records the broadcast content so that the user can surely view the content. it can.

The broadcast content and the distribution content have the same content as the predetermined content as a copyrighted work, and at least one of the broadcast content and the distribution content is different in video quality from the predetermined content. Also good.
Accordingly, it is possible to receive distribution contents having the same content as the copyrighted work, although the video quality is different from the broadcasting contents .

As a result, when the recording capacity required for recording the broadcast content remains in the recording area, the broadcast content can be recorded.
Therefore, when there is a more preferable condition for the broadcast content compared to the distribution content, for example, under the condition that the broadcast content and the distribution content are compared, the video quality of the broadcast content is superior. Broadcast content with excellent video quality can be recorded as much as possible, and even if there is no capacity to record broadcast content in the recording area, distribution content with inferior video quality can be acquired and viewed by distribution it can.

The storage information further includes information indicating a publication date when the distribution device starts distributing the distribution content specified by the storage information, and the content recording means further includes the received broadcast information The content , to which the storage information is added, is recorded in the recording area, and the recording device further records the recorded broadcast content after the release date indicated by the storage information. it may comprise a content erase means to erase from the recording area.

  As a result, when there is a period from the broadcast date to the release date, and when the content for distribution is not provided by the on-demand service at the time of recording the stored information, it is made public by recording the content for broadcasting in addition to the stored information. The broadcast content recorded before the due date can be viewed. Furthermore, the used capacity of the recording area can be reduced by erasing the recorded broadcast content after the release date.

Therefore, it is possible to reduce the used capacity of the recording area at the earliest possible time while preventing both broadcast content and distribution content from being viewed.
The storage information further includes information indicating a date when the distribution device ends distribution of the content for distribution specified by the storage information, and the request unit includes the date before the date indicated by the storage information. Requesting the distribution device to distribute the distribution content specified by the stored information, and the content recording means further transmits the distribution content distributed from the distribution device in response to the request to the recording area. it may be as you record to.

As a result, the distribution of the distribution content can be received and recorded in the recording area before the distribution service of the distribution content by the distribution apparatus ends.
Therefore, since only the storage information is recorded in the recording area, the period for suppressing the usage amount of the recording area while avoiding that the distribution content cannot be viewed after the distribution service of the distribution content by the distribution apparatus is terminated. Can be as long as possible.

Further, the recording device further includes storage information requesting means for requesting the distribution device to distribute the storage information when the information included in the storage information cannot be acquired from the received broadcast content. The storage information recording means may record the storage information distributed from the distribution device in response to the request in the recording area.
As a result, when the storage information cannot be accurately acquired, the storage information can be acquired again.

Therefore, it is possible to increase the chance of acquiring the storage information and increase the possibility of reducing the usage amount of the recording area.
In addition, the receiving means includes the video of the first content to which the first storage information for specifying the content for distribution for distributing the video and audio having the same content as the video and audio of the first content is added. Broadcast content for broadcasting video and audio having the same content as audio is received from a broadcast device, and the stored information recording means stores the first stored information added to the received broadcast content The receiving means is a broadcast content whose broadcast time overlaps with the broadcast content related to the first content after the first storage information is recorded in the storage information recording means. Second storage information for specifying content for distribution for distributing video and audio having the same content as video and audio of the second content The broadcast content for broadcasting the added video and audio having the same content as the video and audio of the second content is received from another broadcasting device, and the stored information recording means is further received. The second storage information added to the broadcast content may be recorded in the recording area.

As a result, by recording only the first storage information added to the broadcast content, it is not necessary to record the broadcast content during the broadcast time of the broadcast content, and broadcast on other channels in the overlapping time zone. The second storage information added to the broadcast content to be recorded can be recorded.
Therefore, since the storage information can be recorded during a part of the broadcast time of the broadcast content, a plurality of broadcast contents broadcast in the same time zone can be recorded on a recording apparatus that does not include a plurality of tuners. Even if you want to watch at a later date, select the channel of the broadcast station that broadcasts each broadcast content in sequence, record the storage information added to each broadcast content, and use the storage information for each later distribution content Can be received and viewed, and the convenience of the user is improved.

  In addition, the broadcasting device includes the first content video and the first storage information to which distribution content for distributing video and audio having the same content as the video and audio of the first content is added. Second content for specifying broadcast content for broadcasting video and audio having the same content as audio and content for distributing video and audio having the same content as the video and audio of the second content Broadcasting content for broadcasting video and audio having the same content as the video and audio of the second content to which information is added is multiplexed and the stored information recording means is One storage information and the second storage information may be recorded in the recording area.

As a result, it is possible to receive broadcast waves such as digital broadcast in which a plurality of broadcast contents are multiplexed, and to store stored information corresponding to each multiplexed broadcast content.
Therefore, even when the recording device does not have a high processing capacity for simultaneously recording a plurality of broadcast contents, a plurality of pieces of stored information are recorded, and distribution contents distributed to each stored information are received and viewed at a later date. can do.

With the configuration described above, the broadcasting apparatus according to the present invention can provide information for receiving distribution of the distribution content related to the predetermined content to the recording apparatus together with the broadcast content related to the predetermined content during broadcasting.
Therefore, in the recording device that has received the broadcast by the broadcast device, the storage information added to the broadcast content is recorded, and then the recorded storage information is used to distribute the same content as the broadcast content broadcast. Upon receiving the content distribution, the distribution content can be viewed. Furthermore, the distribution content having the same content as the broadcast content and the same video quality is distributed by the distribution device, so that the recording device records as compared with the case where the recording content is recorded. There is a possibility of reducing the amount of use of the recording area of the apparatus.

  In addition, the adding unit includes a distribution determining unit that determines whether or not the distribution content related to the predetermined content can be distributed by the distribution device; Storage information generation means for generating storage information for specifying the distribution content and adding the generated storage information to the broadcast content may be included.

As a result, when the distribution content having the same content as the broadcast content to be broadcast is distributed by the distribution device, the storage information can be added to the broadcast content and broadcast.
With the above configuration, the recording program according to the present invention records the storage information added to the broadcast content acquired by broadcasting, and then uses the recorded storage information to distribute the same content as the broadcast content. Upon receiving the content distribution, the distribution content can be reproduced.

  Therefore, the used capacity of the recording area can be greatly reduced compared to the case of recording broadcast content.

Hereinafter, embodiments of a broadcast recording system according to the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
<Overview>
In the broadcast recording system 1 according to the first embodiment, content is provided by broadcasting and on-demand distribution via a cable television (hereinafter referred to as CATV) network, and content provided to users who are contractors of CATV. Can be recorded on the recording device.

An identifier for requesting the distribution of the content by on-demand distribution is added to the content broadcast here, and the identifier is recorded instead of recording the content in the recording device. By receiving this distribution, the usage amount of the recording area in the recording apparatus can be greatly reduced.
<Configuration>
1.1. System Configuration FIG. 1 is a diagram showing a configuration of a broadcast recording system 1 according to Embodiment 1 of the present invention.

In the broadcast recording system 1, a broadcast station 10 and a recording device 30 are connected via a CATV network.
The broadcast station 10 broadcasts the content in a predetermined time period according to the broadcast schedule, and the on-demand service that distributes the content to the requesting recording device 30 in response to a distribution request from the recording device 30 And provide content. The broadcast station 10 provides content having the same contents as the broadcasted content through the on-demand service after broadcasting the content through the broadcast-type service.

  Hereinafter, in the present specification, it is assumed that the same content is a work having the same content. For example, if the content to be broadcast and the content to be distributed have the same content as the copyrighted work, the content is broadcast even if there is a difference in the commercial message inserted in each content, resolution, bit rate, etc. It is assumed that the content to be distributed and the content to be distributed are the same.

Specifically, the recording device 30 is an HDD recorder with a built-in CATV tuner, and is installed in a user's home with a service contract and is broadcast from the broadcasting station 10 via the CATV network and is based on an on-demand service. Upon receiving the content, the content can be recorded and reproduced.
1.2. Broadcasting station 10
The detailed configuration of the broadcast station 10 will be described below.

The broadcast station 10 includes a broadcast device 11 that is a device that provides content by a broadcast-type service, and a distribution device 12 that provides content by an on-demand service.
The broadcast apparatus 11 includes functional blocks of a broadcast content storage unit 13, an addition unit 14, and a transmission unit 15 inside, and in a time zone determined according to the broadcast schedule, the content of the content to be broadcast in the format specified by MPEG2. Video, audio, and control information are multiplexed and broadcast on the TS. At this time, if the same content as the broadcast content can be distributed by the distribution device 12, the broadcast device 11 also multiplexes and stores the storage information including information for specifying the content in the distribution device 12 in the TS.

The broadcast content storage unit 13 is a large-capacity recording device that stores content broadcasted by a broadcast service in the MPEG2 stream format. The content stored here is stored in a state in which commercial messages can be inserted and broadcasted.
The adding unit 14 includes functional blocks of a distribution confirmation unit 16, an information generation unit 17, and a multiplexing unit 18 therein. When the same content as the content to be broadcast is provided by an on-demand service, the content to be broadcast is displayed. The storage information corresponding to the content is multiplexed in the TS to be transmitted.

  The distribution confirmation unit 16 notifies the distribution information presenting unit 24 of the distribution device 12 of the broadcast date and broadcast time of the content to be broadcast, and whether or not the same content as the broadcast content can be distributed by the on-demand service. Receive notifications indicating When notified from the distribution information presentation unit 24 that the distribution information presentation unit 24 can deliver, the distribution confirmation unit 16 obtains the content ID, the publication date, and the expiration date of the content together with the notification from the distribution information presentation unit 24. Is output to the information generation unit 17.

The information generation unit 17 uses the information acquired from the distribution confirmation unit 16 to generate storage information in a format that will be described later.
The multiplexing unit 18 generates a TS 300 in which the MPEG2 stream read from the broadcast content storage unit 13 and the storage information generated by the information generation unit 17 are multiplexed for broadcasting in the transmission unit 15.

The sending unit 15 sends the TS output from the multiplexing unit 18 to the CATV network at a time determined according to the broadcast schedule.
FIG. 2 is a diagram showing the storage information according to the first embodiment and the data structure of the TS 300 in which the storage information is multiplexed.
The TS 300 is multiplexed with an MPEG2-TS header 301 that is TS control information, a data stream 302 that transmits storage information, and an MPEG 2 stream 303 that transmits video and audio of content.

The data stream 302 includes storage information including a content ID 305, publication date information 306, and expiration date information 307, and a data header 304.
The content ID 305 is an identifier that uniquely identifies the same content as the content multiplexed in the TS in the distribution device 12. The publication date information 306 is information indicating the date and time when the distribution device 12 starts providing the content specified by the content ID 305 by the on-demand service. The expiration date information 307 is information indicating the date and time when the distribution apparatus 12 finishes providing the content specified by the content ID 305 by the on-demand service.

Since the data stream 302 repeatedly transmits the stored information during the broadcast time of the content, the stored information can be acquired from the TS at any timing during the broadcast of the content.
Note that the MPEG2-TS header and the MPEG2 stream are well-known techniques defined by MPEG2, and detailed description thereof is omitted here.

The distribution device 12 includes a content distribution unit 21, a stored information distribution unit 22, a distribution content storage unit 23, and a distribution information presentation unit 24.
The content distribution unit 21 receives the viewing request message shown in FIG. 3a from the recording device 30, and reads the content specified by the content ID of the viewing request message from the distribution content storage unit 23 to the recording device 30 that is the request source. To deliver.

The stored information distribution unit 22 receives the additional information acquisition message shown in b of FIG. 3 from the distribution device 12, searches the distribution information table shown in FIG. 4 for the content ID of the additional information acquisition message, and publishes the date of publication of the corresponding content , And the expiration date information are acquired and transmitted to the recording device 30 that is the request source.
The distribution content storage unit 23 is a large-capacity recording device that stores MPEG2 stream format content that can be distributed by an on-demand service. The distribution content storage unit 23 further holds a distribution information table in the recording area.

FIG. 4 is a diagram illustrating a data structure of a distribution information table held by the distribution content storage unit 23. In the distribution information table, the same number of distribution information as the number of contents distributed by the on-demand service is registered.
Each piece of distribution information has a one-to-one correspondence with each content, and is composed of a broadcast date and time, a content ID, a publication date, and an expiration date.

  The broadcast date and time is the date and time when the broadcast device 11 broadcasts the same content as the content to be distributed. The content ID is an identifier that uniquely identifies the corresponding content. The publication date and the expiration date are the date and time when content distribution starts and the date and time when distribution ends. If the distribution is already started by the on-demand service, the publication date is not set. In addition, when the distribution period is not limited, the expiration date is not set.

The distribution information presentation unit 24 receives the broadcast date and time of the content to be broadcast from the distribution confirmation unit 16, and searches the distribution information table for distribution information with the same broadcast date and time. If there is corresponding distribution information, it notifies that the target content is a distribution target, and outputs the content ID, publication date, and expiration date of the distribution information to the distribution confirmation unit 16.
1.3. Recording device 30
Next, the configuration of the recording apparatus 30 will be described.

FIG. 5 is a diagram showing a configuration of the recording apparatus 30 according to Embodiment 1 of the present invention.
The recording device 30 includes a receiving unit 101, a switch 102, an output unit 103, a hard disk 104, a CPU 105, a stored information recording unit 106, and a request unit 107. Constituent elements similar to those of the conventional recording apparatus 100 are denoted by the same reference numerals, and description thereof is omitted.
The receiving unit 101 is a functional block that receives TS broadcasted and distributed from the broadcasting station 10, and specifically includes a CATV tuner 108 and a TS decoder 109.

The CATV tuner 108 selects and extracts a TS of a channel designated by a user operation or recording reservation from signals received from the CATV network.
The TS decoder 109 separates the multiplexed MPEG2 stream and data stream from the TS acquired by the CATV tuner 108, and outputs the MPEG2 stream to the switch 102 and the data stream to the storage information recording unit 106. .

The output unit 103 is specifically an MPEG2 decoder 110, which decodes the content encoded in the MPEG2 stream format input from the switch 102, converts the content into an NTSC signal, and outputs it to the television.
The storage information recording unit 106 includes an ID acquisition unit 118, a publication date acquisition unit 119, and an expiration date acquisition unit 120 therein, and the content acquisition ID is obtained by the ID acquisition unit 118 from the data stream separated from the TS by the TS decoder 109. The storage date shown in a of FIG. 6 is acquired by taking out, extracting the publication date by the publication date acquisition unit 119, and taking out the expiration date by the expiration date acquisition unit 120. FIG. 6 is a diagram illustrating a data structure of storage information acquired by the storage information recording unit 106 and a specific example of storage information.

The stored information recording unit 106 notifies the recording determination unit 111 which information has been acquired among the content ID, the publication date, and the expiration date, and receives a recording instruction from the recording determination unit 111. The storage information is recorded on the hard disk 104.
The request unit 107 includes a request generation unit 121 and a CATV modem 122, and requests the distribution apparatus 12 to distribute content by on-demand service and to transmit stored information.

When the storage information is recorded on the hard disk 104 instead of the content during the reproduction operation and when an instruction is received from the expiration date management unit 117 that monitors the expiration date, the request generation unit 121 The CATV modem 122 generates the viewing request message shown in a, and sends the generated viewing request message to the distribution apparatus 12 via the CATV network.
When receiving an instruction to acquire storage information from the recording determination unit 111, the request generation unit 121 acquires the content ID of the target storage information, and generates an additional information acquisition message shown in FIG. Then, the CATV modem 122 converts the generated additional information acquisition message into an output signal and sends it to the distribution device 12 via the CATV network. The content ID of the target storage information may be acquired directly from the storage information recording unit 106, or the content ID written in the hard disk 104 by the storage information recording unit 106 may be read.

The CPU 105 controls content recording / reproduction by controlling each functional block.
When reproduction of content is instructed by a user operation, the CPU 105 attempts to acquire content specified by the user from the hard disk 104, and when an MPEG2 stream is recorded on the hard disk 104, instructs the reading of the MPEG2 stream. The switch 102 and the MPEG2 decoder 110 are controlled to reproduce the content.

  When the MPEG2 stream is not recorded on the hard disk 104 and stored information is recorded instead, the hard disk 104 is controlled so that the stored information is read and output to the requesting unit 107, and the request unit 107 views the content. Instructs the transmission of the request message, controls the CATV tuner 108 and the TS decoder 109, acquires the MPEG2 stream of the content from the TS transmitted in response to the viewing request message, and controls the switch 102 and the MPEG2 decoder 110. To reproduce the MPEG2 stream.

The CPU 105 reads out and executes a computer program recorded in a ROM, a hard disk or the like, thereby realizing the functions of the functional blocks of the recording determination unit 111 and the due date management unit 112 and controlling the recording of content.
The recording determination unit 111 includes a storage information determination unit 113, a disclosure determination unit 114, and a capacity determination unit 115. When the recording of the content is instructed by a user operation or recording reservation, the recording determination unit 111 stores the content and the storage information in the hard disk. 104 is a functional block for determining whether or not to record in the storage information determination unit 113, the disclosure determination unit 114, and the capacity determination unit 115 included therein, and controls the switch 102 when it is determined to record the content. When the content is recorded on the hard disk 104 and the storage information is determined to be recorded, the storage information recording unit 106 is instructed to record the storage information on the hard disk 104.

  When the storage information determination unit 113 receives a notification from the storage information recording unit 106 that the content ID, the publication date, and the expiration date have been acquired and receives a notification that the content ID cannot be acquired, Determine that the content is to be recorded. In addition, when the content ID is acquired but at least one of the publication date and the expiration date is received, the request unit 107 is requested to request the storage information.

  The capacity determination unit 115 compares the capacity required for recording the content with the free capacity of the hard disk 104 when the storage information determination unit 113 does not determine that the content is to be recorded. When there is a large amount of content, it is determined that the content is to be recorded, and when there is less free space on the hard disk 104, it is determined that the stored information is to be recorded.

  The capacity required for recording the content may be determined by using the recording time reserved for recording and the bit rate of the content, or by using a rough guideline, for example, the content is a so-called HDTV (High Definition Test). In the case of a high-quality video such as broadcast, it may be determined that a capacity of about 5 Gbytes is required to record content for one hour. Further, when the recording is performed by the user's button operation and the time for which the recording is continued is unknown, the capacity required for recording the content for a predetermined time (for example, 2 hours) may be used for comparison.

When the capacity determination unit 115 determines that the storage information is to be recorded, the disclosure determination unit 114 compares the disclosure date indicated by the storage information with the current date and time, and if the disclosure date has not yet arrived, the storage information In addition, it is determined that the content is also recorded on the hard disk 104.
The due date management unit 112 includes a publication date management unit 116 and an expiration date management unit 117. When the storage information is recorded on the hard disk 104, the due date management unit 112 is based on the publication date and the expiration date indicated by the storage information. , Manage content and stored information so that you can view the content at any time.

The publication date management unit 116 determines the date and time when both the content and the storage information corresponding to the content are recorded on the hard disk 104 because the publication determination unit 114 determines that the publication date has not yet arrived. The hard disk 104 is controlled so that the contents are deleted when the monitoring date is reached and the release date arrives.
When storage information is recorded instead of recording content on the hard disk 104, the expiration date management unit 117 monitors the date and time, and a predetermined period before the expiration date indicated by the storage information (for example, the time indicated by the expiration date). Rather than the time required for transferring the target content), the request unit 107 is instructed to request the provision of the content specified by the stored information, and the content distributed by the request is recorded on the hard disk 104. The switch 102 is controlled as follows.

With the above configuration, the user of the recording device records the storage information added to the content instead of the content received on the broadcast day, and then receives on-demand distribution using the recorded storage information. You can watch the same content at a later date.
Therefore, compared with the case where the broadcast content is recorded in the MPEG2 stream, the used capacity of the hard disk can be greatly reduced and the number of recordable contents can be increased. Moreover, since the same number of contents as can be recorded using a conventional recording apparatus can be recorded, the recording capacity of the hard disk can be reduced, so that the effect of reducing the price of the recording apparatus can also be obtained. .

In addition, since the recording apparatus according to the first embodiment records content in addition to stored information from the broadcast date to the release date, the content can be viewed before the release date, and can also be released. After the due date, the used capacity of the hard disk can be reduced by deleting the contents from the hard disk.
Furthermore, by recording the content on the hard disk before the content distribution by the on-demand service is completed, it is possible to prevent the content from being unable to be viewed due to the termination of the on-demand service.

In the broadcast recording system 1 according to the first embodiment, an example in which an MPEG2 stream and storage information are multiplexed one by one in the TS is shown, but storage information corresponding to a plurality of MPEG2 streams in the TS, respectively. May be recorded, a plurality of stored information may be recorded.
For example, when recording a so-called multi-view program in which a plurality of MPEG2 streams linked to each other are multiplexed on a TS, a conventional recording apparatus records only one main MPEG2 stream as a recording target, and other MPEG2 streams. Was not recorded, and padding was performed using a null packet. Therefore, it was not possible to view these unrecorded MPEG2 streams.

  In the recording apparatus according to the present invention, a TS in which a plurality of MPEG2 streams and storage information corresponding to each MPEG2 stream are multiplexed is received, and MPEG2 streams other than one main MPEG2 stream have received conventional null packets. By recording the storage information corresponding to each MPEG2 stream in the area that has been padded, all the videos of the multi-view program can be viewed.

<Operation>
Next, an operation flow of the broadcast recording system 1 configured as described above will be described.
1.4. Content Broadcasting FIG. 7 is a diagram showing a flow of operations for broadcasting content by a broadcast type service in the broadcast recording system 1 according to the first embodiment of the present invention.

First, the distribution confirmation unit 16 of the broadcasting device 11 distributes the broadcast date and time of the content to be broadcast in order to confirm whether the content to be broadcast is provided by an on-demand service. 12 distribution information presentation units 24 (S11).
Upon receiving the broadcast date and broadcast time from the distribution confirmation unit 16, the distribution information presentation unit 24 searches the distribution information table held by the distribution content storage unit 23 for whether or not the distribution information having the same broadcast date and time is registered. If the corresponding distribution information is not registered in the distribution information table (S12: No), it is notified that the target content is not provided by the on-demand service (S13), and the corresponding distribution information is registered ( (S12: Yes), the content ID, publication date, and expiration date of the distribution information are output to the distribution confirmation unit 16 to notify that the target content is provided by the on-demand service (S14).

  When it is notified that the target content is provided by the on-demand service (S15: Yes), the information generation unit 17 receives the content ID, the publication date, and the valid date received from the distribution information presentation unit 24 by the distribution confirmation unit 16 The storage information is generated from the time limit, and the multiplexing unit 18 multiplexes the generated storage information and the MPEG2 stream of the content to be broadcast stored in the broadcast content storage unit 13 to generate a TS (S16). Here, when the content is already provided by the on-demand service and the publication date is not designated, or when the publication expiration date is not designated, the information generation unit 17 performs the publication of c in FIG. As shown in the due date, when the value “0xFFFFFFFFFFFF” indicating no designation is set and the normal date of the publication due date and the expiration date cannot be acquired from the distribution information presenting unit 24, the information generating unit 17 The storage information is generated without setting a value in the corresponding item as indicated by the expiration date of c in FIG.

On the other hand, when notified that the target content is not provided by the on-demand service (S15: No), the multiplexing unit 18 converts the MPEG2 stream of the broadcast content stored in the broadcast content storage unit 13 into a TS. (S17).
The sending unit 15 sends the TS generated by the multiplexing unit 18 to the CATV network at a time determined according to the broadcast schedule (S18).

Through the above operation, when the same content as the content to be broadcast is distributed on demand, the storage information that identifies the content from the content group that can be distributed on demand is added to the content to be broadcast and broadcast. be able to.
1.5. Operation at the time of recording in the recording device 30 Next, an operation of receiving content in the recording device 30 and recording the content on the hard disk in order to view the content later will be described.

FIG. 8 is a diagram showing a flow of an operation of recording content provided by a broadcast type service in the broadcast recording system 1 according to the first embodiment of the present invention.
When recording of content is instructed by the user's button operation or recording reservation (S21), the CATV tuner 108 extracts the TS of the channel designated by the user from the signals received from the CATV network, and the TS decoder 109 The multiplexed MPEG2 stream and the data stream are separated from the TS selected by the CATV tuner 108, and the MPEG2 stream is output to the switch 102 and the data stream is output to the storage information recording unit 106 (S22).

The storage information recording unit 106 attempts to acquire the content ID, the publication date, and the expiration date from the data stream separated by the TS decoder 109 and notifies the recording determination unit 111 of the acquisition result.
When a notification that the content ID could not be acquired is received from the storage information recording unit 106 (S23: No), the storage information determination unit 113 of the recording determination unit 111 determines that the content is not distributed by the on-demand service. Then, the switch 102 is controlled to record the MPEG2 stream on the hard disk 104 (S24), and the content recording operation is completed.

When the notification that the content ID has been acquired is received (S23: Yes), the storage information recording unit 106 is also notified whether or not the publication date and the expiration date have been acquired from the data stream (S25).
In the stored information recording unit 106, for example, when the expiration date cannot be acquired as shown in FIG. 6c, the recording determination unit 111 receives a notification that either the publication date or the expiration date could not be acquired (S25: No). In this case, the storage information determination unit 113 instructs the request unit 107 to transmit an additional information acquisition message that is a storage information acquisition request (S26).

In response to the additional information acquisition message transmitted from the request unit 107, a TS including the publication date and expiration date of the content specified by the content ID is transmitted from the distribution device 12, and the TS is received by the CATV tuner 108. The TS decoder 109 separates the data stream including the publication date and the expiration date.
From the data stream, the publication date acquisition unit 119 extracts the publication date, the expiration date acquisition unit 120 extracts the expiration date, new storage information is generated, and the subsequent processing is continued (S27).

  When notified that the publication date and the expiration date have been acquired (S25: Yes), the capacity determination unit 115 in the recording determination unit 111 determines the capacity required for recording the content to be recorded in the MPEG2 stream, the hard disk When the free space of the hard disk 104 is smaller (S31: No), the storage information recording unit 106 is instructed to record the stored information (S28).

  Conversely, if the hard disk 104 has more free space (S31: Yes), the switch 102 is controlled to record the MPEG2 stream on the hard disk 104 (S32). After that, when the recorded content is longer than the predetermined time, and the remaining capacity of the hard disk 104 runs out during the recording of the MPEG2 stream (S33: No), the recording determination unit 111 sends the stored information recording unit 106 to the storage information recording unit 106. The storage information is instructed to be recorded (S34).

By using the above operation, the storage capacity of the hard disk 104 can be reduced by recording the storage information acquired from the TS instead of the MPEG2 stream.
In addition, when recording content, even if there is no remaining amount to record the MPEG2 stream on the hard disk 104, the storage information having a very small size compared to the MPEG2 stream is recorded. Content can be distributed and viewed through on-demand services.

Further, when there is room for recording the MPEG2 stream on the content and the hard disk 104, the traffic due to the viewing request to the distribution apparatus can be reduced by recording the MPEG2 stream.
In addition, even when some information (for example, additional information such as a publication date and an expiration date) is not included in the storage information acquired together with the content by the broadcast type service, the distribution apparatus is requested to distribute the storage information. Thus, the stored information can be acquired with certainty. Since the stored information is used for the on-demand service of the distribution apparatus, the content and its publication date / validity are available in the on-demand service of the distribution apparatus by using a configuration in which the stored information is acquired on-demand by an additional information acquisition request message. Additional information such as deadlines can be centrally managed.

Next, another example of the operation of recording content in the recording device 30 will be described.
The operation flow shown in FIG. 8 shows an operation flow in which the content is recorded in the MPEG2 stream when the capacity of the hard disk 104 is sufficient, and the storage information is recorded when the capacity of the hard disk 104 is not sufficient. In FIG. 9, an operation for further reducing the usage amount of the hard disk 104 will be described.

FIG. 9 is a diagram showing another example of the operation flow for recording the content provided by the broadcast type service in the broadcast recording system 1 according to the first embodiment of the present invention. In the flow of operation shown in FIG. 9, the operations of S29 and S30 are added except for the operations of S31 to S34 from the flow of operation shown in FIG.
Hereinafter, an operation different from the operation flow shown in FIG. 8 will be described.

In S25, when the recording determination unit 111 receives a notification that the publication date and the expiration date have been acquired (S25: Yes), the recording determination unit 111 instructs the storage information recording unit 106 to store the storage information on the hard disk. It is recorded in 104 (S28).
Furthermore, when the storage information is recorded, if the time point indicated by the publication date has not yet arrived (S29: Yes), the recording determination unit 111 further switches the switch 102 in addition to the storage information recording instruction. The MPEG2 stream is recorded on the hard disk 104 by controlling (S30).

With the above operation, the recording device 30 can always record the storage information when the storage information can be acquired together with the MPEG2 stream of the content. Accordingly, the recording capacity of the hard disk 104 can be greatly saved, and the number of recordable contents can be increased.
In addition, if there is a period from the broadcast date to the release date, and the content is not provided by the on-demand service at the time of recording, the content can be recorded in addition to the stored information, so that the content can be viewed before the release date. be able to.
1.6. Recording management operation of the recording device 30 In the on-demand service, the same content is not always provided. For this reason, if there is a period until the user views the content recorded on the hard disk 104, the content provided by the on-demand service is changed between the time when the content is recorded and the time when the content is viewed. In order to avoid such a situation, the recording device 30 according to the present embodiment manages the storage information recorded on the hard disk 104 based on the publication date and the expiration date.

FIG. 10 is a diagram showing a flow of operations for managing recorded content in the recording apparatus 30 according to the first embodiment.
Below, the operation | movement which manages the recorded content in the recording device 30 is demonstrated.
The due date management unit 112 compares the disclosure date of the stored information recorded in the hard disk 104 with the current date and time, and when the due date has arrived (S41: Yes), the hard disk 104. In step S42, the MPEG2 stream corresponding to the stored information recorded in the file is deleted.

  Further, the due date management unit 112 compares the expiration date of the stored information recorded in the hard disk 104 with the current date and time, and the time of the target content before the expiration date (for example, the time indicated by the expiration date). When the time required for transfer has arrived (S43: Yes), the request unit 107 is instructed to request the provision of the content specified by the stored information (S44), and the MPEG2 distributed by the request is sent. The CATV tuner 108, the TS decoder 109, and the switch 102 are controlled so as to record the stream on the hard disk 104 (S45).

With the above operation, when the MPEG2 stream and the stored information are recorded before the publication date of the content, the MPEG2 stream can be erased after the publication date, so that the usage amount of the hard disk 104 can be reduced. it can.
Even if the content distribution has an expiration date, the content can be acquired from the distribution device and recorded on the hard disk before the expiration date expires, so that the user can reproduce the recorded content at a later time. The user can surely listen to the desired content.
1.7. Next, an operation of viewing recorded content in the recording apparatus 30 of the present embodiment will be described.

FIG. 11 is a diagram showing a flow of operations for viewing recorded content in the recording apparatus 30 of the present embodiment.
When reproduction of content is instructed by a user button operation (S51), the CPU 105 reads the MPEG2 stream and switches when the MPEG2 stream of the content to be reproduced is recorded on the hard disk 104 (S52: Yes). 102 and display on the television via the output unit 103 (S53).

  When the MPEG2 stream of the content to be played back is not recorded on the hard disk 104 (S52: No), the request unit 107 generates a viewing request message using the content ID indicated by the stored information, via the CATV network. It transmits to the distribution apparatus 12 (S54). Thereafter, the MPEG2 stream distributed by the on-demand service is received in response to the viewing request message, and is displayed on the television via the switch 102 and the output unit 103 (S55).

With the above operation, the recording apparatus 30 according to the present embodiment reproduces the content at a later date both in the case where the MPEG2 stream is recorded on the hard disk 104 and the case where the stored information is recorded. Can do.
(Embodiment 2)
<Overview>
In the broadcast recording system 2 according to the second embodiment, a broadcast recording system 2 that provides a broadcast type service based on terrestrial analog broadcasting and an on-demand type service via the Internet will be described.

<Configuration>
2.1. System Configuration FIG. 12 is a diagram showing a configuration of the broadcast recording system 2 according to Embodiment 2 of the present invention.
The broadcast recording system 2 includes a television broadcast station 40, a recording device 50, a content distribution center 60, and a content distribution center 70. The content broadcast by the television broadcast station 40 can be received and recorded by the recording device 50. . The television broadcast station 40, the recording device 50, the content distribution center 60, and the content distribution center 70 are connected to each other via a communication line such as the Internet.

The television broadcast station 40 broadcasts content in the NTSC format at a time period determined according to the broadcast schedule.
The content distribution centers 60 and 70 are so-called ISPs (Internet Service Providers) or the like, and store the same content as the content broadcast by the broadcast type service. Distributes content accumulated by on-demand services via the Internet.

The recording device 50 can receive and record the content broadcast by the broadcast service from the television broadcasting station 40, and further requests and provides the content distribution to the content distribution centers 60 and 70 via the Internet. Can receive.
2.2. TV broadcasting station 40
The detailed configuration of the television broadcast station 40 will be described below.

FIG. 13 is a diagram showing a configuration of the television broadcast station 40 and the content distribution center 60 according to Embodiment 2 of the present invention.
The television broadcast station 40 includes a broadcast content storage unit 41, an addition unit 42, and a transmission unit 43 therein, and broadcasts content in the NTSC format during a time period determined according to the broadcast schedule. At this time, if the same content as the broadcast content can be distributed by either of the content distribution centers 60 and 70, the television broadcast station 40 includes a URL (Uniform Resource Locator) indicating the storage location of the content on the Internet. The stored information is broadcast on the broadcast wave.

The broadcast content storage unit 41 stores content to be broadcast by a broadcast type service, and outputs an NTSC signal of the content at the time of broadcasting.
The adding unit 42 includes functional blocks of a distribution confirmation unit 44, an information generation unit 45, and a superimposition unit 46 therein. When the same content as the content to be broadcast is provided by an on-demand service, the content to be broadcast is transmitted. The stored information corresponding to the content is superimposed on the broadcast wave.

  The distribution confirmation unit 44 transmits the broadcast date and time of the content to be broadcast to the content distribution centers 60 and 70, and receives a notification indicating whether or not the same content as the broadcast content can be distributed by the on-demand service. When the delivery confirmation unit 44 is notified from the delivery information presentation unit 63 that delivery is possible, the delivery information presentation unit 63 sends the URL indicating the storage location of the content, the quality of the content resolution, and the bit rate together with the notification. The information is acquired and the information is output to the information generation unit 45.

The information generation unit 45 uses the information acquired from the distribution confirmation unit 44 to generate the storage information shown in FIG.
When the same content as the content to be broadcast is provided by an on-demand service, the superimposing unit 46 generates an NTSC signal output from the broadcast content storage unit 41 for broadcasting in the transmission unit 43, and generates it in the information generation unit 45. Superimpose stored information.

The transmission unit 43 transmits the NTSC signal output from the superimposition unit 46 at a time determined according to the broadcast schedule.
FIG. 14 is a diagram showing the storage information according to the second embodiment and the data structure of the NTSC signal 401 on which the storage information is superimposed.
An NTSC signal 401 is an NTSC signal for one frame, and a data stream 402 is superimposed on a part of a vertical blanking period. The data stream 402 includes storage information including a URL 404 and quality information 405, and a data header 403.

The URL 404 indicates the storage location of the content provided by the on-demand service on the Internet, and the quality information 405 is information indicating the resolution and bit rate of the content provided by the on-demand service.
Since the above-described storage information is superimposed for each frame of the content, the storage information can be acquired at any time while the content is being broadcast.

Note that the data stream folding method during the vertical blanking period of the NTSC signal is a well-known technique used in teletext broadcasting and the like, and thus detailed description thereof will be omitted.
With the above configuration, when the same content as the content to be broadcast is distributed by the on-demand service, the television broadcast station 40 can broadcast the stored information superimposed on the NTSC signal that transmits the content.
2.3. Content distribution center 60
Next, a detailed configuration of the content distribution center 60 will be described.

The content distribution center 60 includes a content distribution unit 61, a distribution content storage unit 62, a distribution information presentation unit 63, a movement information holding unit 64, and a distribution request transfer unit 65.
The content distribution center 60 prepares a plurality of MPEG2 streams with different video qualities such as resolution and bit rate for one content, and the video corresponding to the resolution corresponding to the recording device of the distribution destination and the bit rate of the line to be used. Content can be supplied.

The content distribution unit 61 receives the viewing request packet shown in FIG. 15 from the recording device 50, and distributes the content corresponding to the viewing request packet from the distribution content storage unit 62 to the read request source. If the content corresponding to the viewing request packet is not stored in the distribution content storage unit 62, the distribution request transfer unit 65 is notified of this.
The distribution content storage unit 62 is a large-capacity recording device that stores content that can be distributed by an on-demand service in the MPEG2 stream format. The distribution content storage unit 62 stores a plurality of MPEG2 streams having different video qualities such as resolution and bit rate for one content. The distribution content storage unit 62 further stores distribution information including broadcast date and time, URL, and quality information of the MPEG2 stream with the best video quality for each content stored.

  The distribution information presentation unit 63 receives the broadcast date and time of the content to be broadcast from the television broadcasting station 40, and searches the distribution information recorded in the distribution content storage unit 62 for distribution information that matches the broadcast date and time. When there is corresponding distribution information, the URL and the quality information included in the distribution information are transmitted to the distribution confirmation unit 44 of the television broadcast station 40 to notify that the target content is a distribution target.

  The movement information holding unit 64 is used by the administrator of the content distribution center 60 to store the content stored for the purpose of securing the recording capacity of the distribution content storage unit 62 or for the reason that the expiration date of content distribution has expired. This is a recording device that records the destination URL when it is moved to the content distribution center or the like. The movement information holding unit 64 holds, for each content, the URL of a content distribution center that is a transmission or movement destination or a proxy server that caches a copy of the content.

Upon receiving the notification from the content distribution unit 61, the distribution request transfer unit 65 searches the movement information holding unit 64 for the requested content destination, and views the detected destination URL via the Internet. The request packet is transferred, and the recording device 50 is requested to distribute the content.
With the above configuration, the content distribution center 60 can distribute the requested content to the recording device 50.

The content distribution center 70 has the same configuration as the content distribution center 60.
2.4. Recording device 50
Next, the configuration of the recording apparatus 50 will be described.
FIG. 16 is a diagram showing a configuration of the recording apparatus 50 according to the second embodiment of the present invention.
The recording device 50 includes a receiving unit 201, a switch 102, an output unit 103, a hard disk 104, a CPU 105, a stored information recording unit 202, and a request unit 203.

The same components as those of the recording apparatus 30 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
The receiving unit 201 is a functional block that receives content broadcast and distributed from the television broadcasting station 40, the content distribution center 60, and the content distribution center 70. Specifically, the receiving unit 201 includes a TV tuner 204, a demultiplexer 205, and MPEG2. It consists of an encoder 206 and a demodulator 207.

The TV tuner 204 receives a broadcast wave transmitted from the TV broadcast station 40, tunes and selects a channel designated by the user, and outputs an NTSC signal.
The demultiplexer 205 extracts the data stream from the vertical blanking period of the NTSC signal and outputs it to the storage information recording unit 202.
The MPEG2 encoder 206 encodes the NTSC signal according to a predetermined method defined by the MPEG2 recommendation, converts it into an MPEG2 stream, and outputs it to the switch 102.

The demodulator 207 is connected to the Internet downlink, extracts an MPEG2 stream from input packets received from the Internet, and outputs the MPEG2 stream to the switch 102.
The storage information recording unit 202 includes a URL acquisition unit 208 and a quality information acquisition unit 209 inside. The URL indicating the storage location of the content by the URL acquisition unit 208 from the data stream acquired from the NTSC signal by the demultiplexer 205. The storage information is acquired by extracting the quality information including the resolution and bit rate of the content by the quality information acquisition unit 209.

Further, the storage information recording unit 202 notifies the recording determination unit 212 which information of the URL and the quality information has been acquired, and further receives the recording instruction from the recording determination unit 212 and stores the stored information in the hard disk 104. Record.
The request unit 203 includes a request generation unit 210 and a modulator 211, and requests the content distribution center 60 to distribute content by an on-demand service.

The request unit 203 requests content distribution according to the resolution and bit rate corresponding to the own device based on the resolution and bit rate indicated by the quality information, so that there is no adverse effect such as frame dropping or disturbance in playback speed. In addition to being able to view, the user can also listen to high quality content at a higher bit rate than television broadcasts.
When the storage information is recorded on the hard disk 104 instead of the content during the reproduction operation, the request generation unit 210 reads the storage information read from the hard disk 104 according to the instruction from the CPU 105, the resolution corresponding to the recording device 50, and the bit rate. The viewing request packet shown in FIG. 15 is generated and output to the modulator 211.

The modulator 211 converts the generated viewing request packet into an output packet so that it can be transmitted to the Internet, and outputs it to the uplink of the Internet.
The CPU 105 controls content reproduction by the same control as in the first embodiment.
Further, the CPU 105 reads out and executes a computer program recorded in a ROM, a hard disk or the like, thereby realizing the function of the recording determination unit 212 and controlling the recording of content.

  The recording determination unit 212 includes a storage information determination unit 213, a quality determination unit 214, and a capacity determination unit 215. When the recording of the content is instructed by a user operation or a recording reservation, the recording determination unit 212 stores the content and storage information. If the storage information determination unit 213, the quality determination unit 214, and the capacity determination unit 215 determine that the content is to be recorded, the switch 102 is controlled. The content is recorded on the hard disk 104. On the other hand, if it is determined that the storage information is to be recorded, the storage information recording unit 202 is instructed to record the storage information on the hard disk 104.

The storage information determination unit 213 receives a notification from the storage information recording unit 202 as to which information of the URL and the quality information has been acquired. If the storage information determination unit 213 receives a notification that the URL has not been acquired, the storage information determination unit 213 determines to record the content. To do.
The capacity determination unit 215 is a functional block having the same function as the capacity determination unit 115 of the first embodiment.

When the capacity determination unit 215 determines that the content is to be recorded, the quality determination unit 214 is indicated by the video quality and the quality information of the received content (in this embodiment, the MPEG2 stream encoded with the NTSC signal). The video quality is compared, and when the video quality indicated by the quality information is superior, the recording target is changed to storage information.
With the above configuration, the user of the recording device uses the stored information by recording the stored information instead of recording the content received by the broadcast type service even when the hard disk 104 does not have the capacity to record the content. Receive the on-demand distribution and watch the same content at a later date.

Therefore, the used capacity of the hard disk can be greatly reduced as compared with the case where the broadcast content is recorded.
Also,
Based on the storage information acquired together with the content by the broadcast type service, compare the superiority or inferiority of the video quality between the content broadcast by the broadcast type service and the content distributed by the on-demand type service. Can be recorded.

Therefore, it is possible to view content with better video quality.
Further, when recording of a plurality of contents broadcast during the same time period is instructed by a recording reservation or the like, the CPU 105 controls each functional block and causes the TV tuner 204 to select a channel for broadcasting the first content. The NTSC signal is acquired, and the storage information recording unit 202 acquires the storage information from the NTSC signal and records it on the hard disk 104. Thereafter, the CPU 105 further causes the TV tuner 204 to select a channel for broadcasting the second content, acquires the NTSC signal, and causes the storage information recording unit 202 to acquire the storage information from the NTSC signal and records it on the hard disk 104. To control. Further, the storage information is recorded in the same manner for the third and subsequent contents.

In this way, when recording of a plurality of contents is requested at the same time, it is possible to view all contents at a later date by sequentially recording only the storage information of each contents instead of the MPEG2 stream. Become.
<Operation>
Next, an operation flow of the broadcast recording system 2 configured as described above will be described.
2.5. Operation at the time of recording in the recording device 50 An operation of receiving content in the recording device 50 and recording the content on the hard disk in order to view the content later will be described.

FIG. 17 is a diagram showing a flow of operations for recording content provided by a broadcast service in the broadcast recording system 2 according to Embodiment 2 of the present invention.
When content recording is instructed by the user's button operation or recording reservation (S61), the TV tuner 204 selects the NTSC signal of the channel specified by the user from the signals received by the antenna, and demultiplexer 205, And output to the MPEG2 encoder 206 (S62).

The MPEG2 encoder 206 acquires video and audio from the NTSC signal, converts them into an MPEG2 stream, and outputs them to the switch 102.
The demultiplexer 205 separates the data stream convolved during the vertical blanking period of the NTSC signal and outputs it to the storage information recording unit 202. The stored information recording unit 202 attempts to acquire the URL and the quality information by using the URL acquisition unit 208 and the quality information acquisition unit 209 provided therein, and notifies the recording determination unit 212 of the acquisition result.

When the notification that the URL could not be acquired is received from the storage information recording unit 202 (S63: No), the storage information determination unit 213 of the recording determination unit 212 determines that the content is not distributed by the on-demand service. Then, the switch 102 is controlled to record the MPEG2 stream on the hard disk 104 (S64), and the content recording operation is completed.
When the notification that the URL has been acquired is received (S63: Yes), the capacity determination unit 215 in the recording determination unit 212 further determines the capacity required for recording the content to be recorded in the MPEG2 stream, When the available capacity of the hard disk 104 is smaller (S65: No), the storage information recording unit 202 is instructed to record the stored information, and the recording operation is terminated (S66).

On the contrary, when the free space of the hard disk 104 is larger (S65: Yes), the quality determination unit 214 in the recording determination unit 212 uses the video quality and quality information of the MPEG2 stream obtained by encoding the received NTSC signal. The displayed video quality is compared (S67).
When the video quality indicated by the quality information is superior (S67: No), the quality determination unit 214 instructs the storage information recording unit 202 to record the storage information on the hard disk 104 (S66), and ends the recording operation. .

  When the video quality of the MPEG2 stream obtained by encoding the NTSC signal is superior (S67: Yes), the switch 102 is controlled to record the MPEG2 stream on the hard disk 104 (S68). After that, when the recorded content is longer than the predetermined time and the remaining capacity of the hard disk 104 runs out during the recording of the MPEG2 stream (S69: No), the recording determination unit 212 stores the information in the storage information recording unit 202. The storage information is instructed to be recorded (S70).

With the above operation, when recording the content, the user of the recording device 50 records the storage information obtained from the NTSC signal instead of the MPEG2 stream, even if there is no remaining amount to record the MPEG2 stream on the hard disk 104. Content can be distributed and viewed through an on-demand service.
When the recording time of the content can be specified by recording reservation or the like, the capacity required for recording the content before recording is compared with the free space of the hard disk 104, so that the content of the hard disk 104 is recorded during the recording of the content. Since the remaining capacity is insufficient, it is possible to avoid the problem that the content can be recorded only halfway.

  Furthermore, even if the recording time of the content cannot be specified before recording and the remaining capacity of the hard disk 104 is insufficient during the recording of the content, the storage information having a very small size compared to the content can be recorded at a later date. The content can be distributed and viewed by the on-demand service, and the situation where the content cannot be viewed to the end can be avoided.

In addition, it is possible to compare the video quality of the content distributed by the broadcast type service and the on-demand type service using the stored information that can be acquired together with the content by the broadcast type service. If the information is better, record the content obtained from the received broadcast wave, and if the video quality of the content delivered by the on-demand service is better, record the stored information obtained from the received broadcast wave. Thus, among the broadcast content and the distributed content, it is possible to view the side with better video quality at a later date.
2.6. Operation of Distribution in Content Distribution Centers 60 and 70 Next, an operation of distributing content by the content distribution centers 60 and 70 will be described.

FIG. 18 is a diagram showing an operation flow for providing content by an on-demand service in the broadcast recording system 2 according to the second embodiment of the present invention.
The viewing request packet transmitted from the recording device 50 is delivered via the Internet to the content distribution center 60, which is the URL designation destination (S71).
In the content distribution center 60 that has received the viewing request packet, the content distribution unit 61 selects the MPEG2 stream of the content specified by the URL included in the viewing request packet from the MPEG2 streams stored in the distribution content storage unit 62. Search for.

When the MPEG2 stream of the specified content is stored in the distribution content storage unit 62 (S72: Yes), the content distribution unit 61 acquires the MPEG2 stream of the specified content from the distribution content storage unit 62 and uses the Internet. Then, the data is transmitted to the recording device 50 (S73).
The administrator of the content distribution center 60 moves the stored content to another content distribution center (for example, the content distribution center 70) for the purpose of securing the recording capacity of the distribution content storage unit 62, or the like. If the MPEG2 stream of the specified content is not stored in the distribution content storage unit 62 (S72: No), the content distribution unit 61 indicates that the MPEG2 stream of the specified content could not be acquired. To notify.

The distribution request transfer unit 65 that has received the notification
It is searched whether or not the destination to which the designated content has been moved in the past is held in the movement information holding unit 64, and if it is not detected (S74: No), to the recording device 50 that is the transmission source of the viewing request packet. Notification is made that the content cannot be distributed (S75).
When the destination of the designated content is detected from the record of the movement information holding unit 64 (S74: Yes), the distribution request transfer unit 65 passes the URL to the detected destination (for example, the content distribution center 70) via the Internet. Then, the viewing request packet is transferred, and the recording apparatus 50 is requested to distribute the content (S76).

When the content distribution center 70 accepts the transfer of the viewing request packet (S77), the content distribution center 70 content distribution unit acquires the MPEG2 stream of the content specified by the viewing request packet from the distribution content storage unit 62, and sends the request source packet. The data is transmitted to the recording device 50 (S78).
As described above, the content distribution center can provide content even when the content requested by the recording device is not accumulated.

Therefore, even when the recording device records only the stored information instead of the MPEG2 stream of the content and the recording device has not already accumulated the requested content in the content distribution center that requested the direct distribution, the recording device Users can acquire and listen to the content without fail.
In the content distribution center 70 that has received the transfer of the viewing request packet, processing similar to the processing in the content distribution center 60 (confirmation of presence / absence of accumulated content and search for content transfer destination) is executed. The viewing request packet may be transferred to the content distribution center.
3. Other Modifications Although the present invention has been described based on the first and second embodiments, it is needless to say that the present invention is not limited to the above-described embodiments. The following cases are also included in the present invention.

(1) The present invention may be the method described above. Further, the present invention may be a computer program that realizes these methods by a computer, or may be a digital signal composed of the computer program.
The present invention also provides a computer-readable recording medium such as a flexible disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray Disc). ), Recorded in a semiconductor memory or the like. Further, the present invention may be the computer program or the digital signal recorded on these recording media.

In the present invention, the computer program or the digital signal may be transmitted via an electric communication line, a wireless or wired communication line, a network represented by the Internet, or the like.
The present invention may be a computer system including a microprocessor and a memory, wherein the memory stores the computer program, and the microprocessor operates according to the computer program.

In addition, the program or the digital signal is recorded on the recording medium and transferred, or the program or the digital signal is transferred via the network or the like, and is executed by another independent computer system. It is good.
(2) The stored information according to the present invention is not limited to the data structure described in the first and second embodiments, and may be another data structure as long as the information can uniquely identify the content in the on-demand service. It may be.

  For example, the stored information may specify the content by the channel on which the content was broadcast and the broadcast date and time. In this case, a table that uniquely associates the broadcast station channel and content broadcast date and time with the content to be distributed is held in the distribution device, and the recording device broadcasts the target content using the channel and the broadcast date and time. , Request distribution of content.

(3) The broadcasting apparatus according to the present invention may broadcast content by other methods in addition to CATV broadcasting and terrestrial analog broadcasting. For example, the broadcasting device may broadcast content by terrestrial digital broadcasting, BS broadcasting, BS digital broadcasting, CS broadcasting, or the like.
(4) The method of adding stored information to content in the present invention is not limited to multiplexing data streams to TSs defined by MPEG2 and superimposing on analog broadcast waves using a vertical blanking period. Of course, the content and stored information may be broadcast together using other methods. For example, the stored information may be multiplexed on the TS by a data carousel method used for data broadcasting in digital broadcasting.

(5) In the above embodiment, the MPEG2 stream in which the content is encoded and the stored information are both recorded on the hard disk. However, the MPEG2 stream and the stored information need not be recorded on the same recording medium. Absent. For example, the stored information may be recorded on another recording medium such as a RAM.
(6) In the above embodiment, the method defined in MPEG2 is used as the content encoding method in broadcasting, distribution, recording, etc., but the encoding method used in the broadcast recording system according to the present invention is not necessarily MPEG2. For example, MPEG4, H.264, etc. 263, H.M. Other encoding methods defined in H.264 or the like may be used.

(7) The recording apparatus according to the present invention acquires storage information added to content being broadcast, requests the distribution apparatus to distribute the content specified by the acquired storage information, and distributes the apparatus in response to the request. The content distributed from may be played from the top.
As a result, the user of the recording apparatus can reproduce the content from the beginning even when instructing the start of recording during the broadcast of the content.

(8) The recording device according to the present invention further includes a restricting unit that restricts recording of content acquired by broadcasting, and the distribution device distributes content having inferior video quality with the same content as the broadcasted content. It is good.
As a result, for example, it is possible to prevent content broadcast by high-quality digital broadcasting from being recorded and unlimitedly copied.

  (9) The present invention may be combined with the above-described embodiment and the above-described modifications.

The broadcast recording system according to the present invention has the effect of reducing the amount of recording media used for recording broadcast content,
This is useful for a hard disk recorder or the like that records broadcast content.

The figure which shows the structure of the broadcast recording system 1 which concerns on Embodiment 1 of this invention. The figure which shows the data structure of TS300 by which the storage information which concerns on this Embodiment 1, and the said storage information were multiplexed. The figure which shows the data structure of the message which the request | requirement production | generation part 121 produces | generates. The figure which shows the data structure of the delivery information table which the delivery content storage part 23 hold | maintains. 1 is a diagram showing a configuration of a recording apparatus 30 according to Embodiment 1 of the present invention. The figure which shows the data structure of the storage information acquired by the storage information recording part 106, and the specific example of storage information. The figure which shows the flow of the operation | movement which broadcasts content by a broadcast type service in the broadcast recording system 1 which concerns on Embodiment 1 of this invention. The figure which shows the flow of operation | movement which records the content provided by the broadcast type service in the broadcast recording system 1 which concerns on Embodiment 1 of this invention. The figure which shows the other example of the flow of operation | movement which records the content provided by the broadcast type service in the broadcast recording system 1 which concerns on Embodiment 1 of this invention. The figure which shows the flow of the operation | movement which manages the recorded content in the recording device 30 concerning this Embodiment 1. FIG. The figure which shows the flow of operation | movement which views the recorded content in the recording device 30 of this Embodiment. The figure which shows the broadcast recording system 2 which concerns on Embodiment 2 of this invention. The figure which shows the structure of the television broadcasting station 40 which concerns on Embodiment 2 of this invention, and the content delivery center 60. FIG. The figure which shows the storage information which concerns on this Embodiment 2, and the data structure of the NTSC signal 401 on which the said storage information was superimposed. The figure which shows the detail of the packet which the request | requirement production | generation part 210 produces | generates. FIG. 6 is a diagram showing a configuration of a recording apparatus 50 according to Embodiment 2 of the present invention. The figure which shows the flow of operation | movement which records the content provided by the broadcast type service in the broadcast recording system 2 which concerns on Embodiment 2 of this invention. The figure which shows the flow of operation | movement which provides a content by an on-demand type service in the broadcast recording system 2 which concerns on Embodiment 2 of this invention. 1 is a diagram illustrating a configuration of a conventional recording apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Broadcast recording system 2 Broadcast recording system 10 Broadcast station 11 Broadcast apparatus 12 Distribution apparatus 13 Broadcast content storage part 14 Additional part 15 Sending part 16 Distribution confirmation part 17 Information generation part 18 Multiplexing part 21 Content distribution part 22 Stored information distribution part 23 Distribution content storage unit 24 Distribution information presentation unit 30 Recording device 40 Television broadcast station 41 Broadcast content storage unit 42 Additional unit 43 Transmission unit 44 Distribution confirmation unit 45 Information generation unit 46 Superimposition unit 50 Recording device 60 Content distribution center 61 Content distribution unit 62 Distribution content storage unit 63 Distribution information presentation unit 64 Movement information holding unit 65 Distribution request transfer unit 70 Content distribution center 100 Recording device 101 Reception unit 102 Switch 103 Output unit 104 Hard disk 105 CPU
106 Stored Information Recording Unit 107 Request Unit 108 CATV Tuner 109 TS Decoder 110 MPEG2 Decoder 111 Recording Judgment Unit 112 Date Management Unit 113 Storage Information Judgment Unit 114 Public Judgment Unit 115 Capacity Judgment Unit 116 Public Date Management Unit 117 Expiration Date Management Unit 118 ID Acquisition unit 119 Publication date acquisition unit 120 Expiration date acquisition unit 121 Request generation unit 122 CATV modem 201 Reception unit 202 Stored information recording unit 203 Request unit 204 TV tuner 205 Demultiplexer 206 Encoder 207 Demodulator 208 URL acquisition unit 209 Quality information acquisition unit 210 Request generation unit 211 Modulator 212 Recording determination unit 213 Storage information determination unit 214 Quality determination unit 215 Capacity determination unit 300 TS
301 MPEG2-TS header 302 Data stream 303 MPEG2 stream 304 Data header 305 Content ID
306 Date information 307 Expiration date information 401 NTSC signal 402 Data stream 403 Data header 404 URL
405 Quality information

Claims (9)

A broadcast recording system having a broadcast device, a recording device, and a distribution device,
The content includes at least video and audio, and the stored information can be distributed by the distribution device for distribution content for distributing video and audio having the same content as the video and audio of the predetermined content by the distribution device. This information is identified from the content group for distribution,
The broadcasting device is:
Distribution determining means for determining whether the distribution content related to the predetermined content can be distributed in the distribution device;
When it is determined that distribution is possible, storage information for specifying the distribution content related to the predetermined content is generated, and the generated storage information is the same as the video and audio of the predetermined content Storage information generating means for adding to broadcast content for broadcasting audio;
Wherein a broadcast content, which the storage information is added, or a broadcasting means for broadcasting the stored information is such things have been added,
The recording apparatus includes a receiving unit the broadcast content is received from the broadcast device,
When the storage information is added to the broadcast content received by the receiving means, it is determined that the broadcast content is not recorded, and the storage information is not added to the received broadcast content Includes a determination means for determining to record the broadcast content;
Content recording means for recording the received broadcast content in a recording area when the determination means determines to record the received broadcast content;
If it is determined not to record the broadcast content that is the received by the determining means, the storing information added to the broadcast content that is the received and stored information recording means for recording onto the recording area,
Requesting means for requesting the delivery device to deliver the content for delivery specified by the recorded stored information,
When the distribution device receives a distribution request for the distribution content from the request unit, the distribution device distributes the distribution content to the recording device, and the recording device has the same content as the predetermined content. A broadcast recording system, wherein after the content is broadcast, the content for distribution which is the same as the predetermined content is distributed and reproduced. The content includes at least video and audio, and the stored information is a distribution that enables the distribution device to distribute distribution content for distributing video and audio having the same content as the video and audio of the predetermined content by the distribution device. Information to identify from the content group
Broadcast content for broadcasting video and audio having the same content as the video and audio of the predetermined content , with the storage information added or without the storage information added from the broadcast apparatus, a reception means for receiving the broadcast content,
When the storage information is added to the broadcast content received by the receiving means, it is determined that the broadcast content is not recorded, and the storage information is not added to the received broadcast content Includes a determination means for determining to record the broadcast content;
Content recording means for recording the received broadcast content in a recording area when the determination means determines to record the received broadcast content;
If it is determined not to record the broadcast content that is the received by the determining means, the storing information added to the broadcast content that is the received and stored information recording means for recording onto the recording area,
Requesting means for requesting the distribution apparatus to distribute the content for distribution specified by the recorded storage information,
A recording apparatus for reproducing distribution content distributed in response to the request from the distribution apparatus. The broadcast content and the distribution content have the same content as the predetermined content as a copyrighted work, and at least one of the broadcast content and the distribution content is different in video quality from the predetermined content. The recording apparatus according to claim 2. The storage information further includes information indicating a publication date when the distribution device starts distribution of the content for distribution specified by the storage information,
The content recording means further records the received broadcast content to which the storage information is added to the recording area ,
The recording apparatus further broadcast content that the recorded, published date after indicated by the storage information, according to claim 2, characterized in that it comprises a content erase means to erase from the recording area Recording device. The storage information further includes information indicating a date when the distribution device ends the distribution of the distribution content specified by the storage information,
The request means requests the distribution device to distribute the content for distribution specified by the storage information before the date indicated by the storage information,
The content recording means further recording apparatus according to claim 2 in which the distribution content distributed from the distributing apparatus in response to the request, wherein the benzalkonium be recorded into the recording area. The recording device further includes:
Storage information requesting means for requesting distribution of the storage information to the distribution device when some information included in the storage information cannot be acquired from the received broadcast content;
The recording apparatus according to claim 2, wherein the storage information recording unit records the storage information distributed from the distribution apparatus in response to the request in the recording area. The receiving means includes video and audio of the first content to which first storage information for specifying distribution content for distributing video and audio having the same content as the video and audio of the first content is added. Receive broadcast content for broadcasting video and audio with the same content from the broadcast device,
The storage information recording means records the first storage information added to the received broadcast content in the recording area,
The receiving means is a broadcast content whose broadcast time overlaps with the broadcast content related to the first content after the storage information recording means records the first storage information, and the second content of the second content A video and audio having the same content as the video and audio of the second content, to which the second storage information specifying the content for distribution for distributing the video and audio having the same content as the video and audio is added. Receive broadcast content for broadcasting from other broadcast devices,
The recording apparatus according to claim 2, wherein the storage information recording unit further records the second storage information added to the received broadcast content in the recording area. The broadcasting apparatus includes video and audio of the first content to which first storage information for specifying distribution content for distributing video and audio having the same content as the video and audio of the first content is added. Second storage information for specifying broadcast content for broadcasting video and audio having the same content and distribution content for distributing video and audio having the same content as the video and audio of the second content is provided. The added video and audio for broadcasting the video and audio having the same content as the video and audio of the second content are multiplexed and broadcasted,
The recording apparatus according to claim 2, wherein the storage information recording unit records the first storage information and the second storage information in the recording area. The content includes at least video and audio, and the stored information is a distribution that enables the distribution device to distribute distribution content for distributing video and audio having the same content as the video and audio of the predetermined content by the distribution device. Information to identify from the content group
Broadcast content for broadcasting video and audio having the same content as the video and audio of the predetermined content , with the storage information added or without the storage information added from the broadcast apparatus, a reception step of receiving the broadcast content,
When the storage information is added to the broadcast content received in the reception step, it is determined that the broadcast content is not recorded, and the storage information is not added to the received broadcast content A determination step for determining that the broadcast content is to be recorded;
A content recording step of recording the received broadcast content in a recording area when it is determined to record the received broadcast content in the determination step;
A storage information recording step of recording storage information added to the received broadcast content in the recording area when it is determined not to record the received broadcast content in the determination step;
A requesting step for requesting the distribution device to distribute the content for distribution specified by the recorded storage information;
The recording program which makes a computer perform each step with the reproduction | regeneration step which reproduces | regenerates the content for delivery delivered from the said delivery apparatus according to the said request | requirement.

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