JP2002290353A - Broadcast device and broadcast reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a broadcast device and a broadcast reproducing device that can partially update broadcast data. SOLUTION: Newly received broadcast data are compared with older broadcast data having already been stored. The broadcast data include small management information to manage version information of relevant information by each related information in addition to a plurality of partial relevant information items and the relevant information in relation to a plurality of the partial relevant information items, intermediate management information for managing pointers to the small management information for managing the version information of the partial program information and the relevant information in relation to the partial program information by each partial program information, and large management information for managing pointers to each intermediate management information. The new/old broadcast data are compared on the basis of pieces of the version information respectively provided to the small management information and the intermediate management information, and by controlling the pointers provided to the intermediate management information and the large management information on the basis of the result of comparison, data can be added in the related information units and the partial program information units.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast apparatus for broadcasting broadcast data and a broadcast reproduction apparatus for reproducing received data. TECHNICAL FIELD The present invention relates to a broadcasting device and a broadcasting reproducing device which can provide the broadcast data and upgrade the stored broadcast data.

[0002]

2. Description of the Related Art Conventionally, in a broadcasting system such as a television broadcasting system, when a viewer selects a certain program, related information such as advertisement information accompanying the program is unilaterally irrespective of the necessity of the viewer. Had to be received and played back. Therefore, a technique has been developed that can provide the related information according to the taste and preference of the viewer without having to view related information unnecessary for the viewer.
No. 23118 discloses a broadcasting device and a broadcasting reproducing device.

FIG. 13 is a schematic configuration diagram of a broadcast system including a broadcast apparatus 1009 and a broadcast reproduction apparatus 1010 disclosed in the above publication. In FIG. 13, 100
Reference numeral 1 denotes a storage unit that stores broadcast data and the like in advance, 1002 denotes a data server 1002 that reads and holds broadcast data from the storage unit 1001, and 1003 denotes a broadcast unit 1003 that broadcasts broadcast data held by the data server 1002;
These constitute a broadcasting device 1009.

Reference numeral 1004 denotes a broadcast receiving unit; 1005, storage control units 1005 and 1006 for storing and reading out received broadcast data in a storage unit 1008;
Reference numeral 07 denotes a display unit such as a CRT or an LCD, and reference numeral 1008 denotes a storage unit for storing received broadcast data, and these constitute a broadcast reproducing apparatus 1010.

FIG. 14 shows a broadcast apparatus 1009 in FIG.
1 shows a data structure of broadcast data transmitted from the to the broadcast reproducing apparatus 1010. In FIG. 14, 110
5, 1107, 1109, and 1110 each include a plurality of broadcast program contents (in FIG. 14, for convenience,
4), each of which includes independent partial program contents composed of a moving image and a sound.

1106, 1108, 1110, 1112
Is branch information indicating a branch to other partial video / audio information or the like.
5, 1106, 1107, and 1108, a branch screen including options for selecting other partial video / audio information is displayed on the screen of the display unit 1007, and the user waits for an option input from the viewer. Have been.

[0007] In step 1113, after an option is input on the branch screen, any one of a plurality of versions of related video / audio information described below relating to the partial video / audio information corresponding to the option is reproduced. , A branch table for holding a pointer to a related information version table described later.

[0008] Reference numerals 1117, 1118, and 1119 denote related video and audio information 1105 composed of a plurality of versions related to partial video and audio information 1105, 1107, 1109, and 1110 corresponding to each option set in the branch table.
127, 1129, 1131, 1133, 1135, 1
It is a related information version table for managing pointers to 137 and 1139.

Further, 1127, 1129, 1131, 1
133, 1135, 1137, and 1139 are partial video / audio information 1105, 1107, 1109, and 111, respectively.
0 is related video / audio information composed of a moving image and audio having a content corresponding to each of 0, and is composed of a plurality of versions. Specifically, for example, partial video / audio information 1
If 107 is “eating and walking” and the related video / audio information of Part 2 is a restaurant advertisement, the related video / audio information 1127 of Part 1 version 1 is “for families”, and the related video / audio information 1129 of Version 2 of Part 2 is “ For couples ”and so on.

The related video / audio information 1127, 112
9, 1131, 1133, 1135, 1137, 113
At the end of 9, each related video / audio information 1127, 1129,
Partial video / audio information 1107, 110 corresponding to 1131, 1133, 1135, 1137, 1139 respectively
9, 1111 playback start addresses 1102, 1103,
1104 is set, and after the related video / audio information ends, the next partial video / audio information is reproduced based on the reproduction start address set last.

When reproducing the broadcast data having the above data structure, the reproducing unit 1006 reproduces the partial video / audio information 1105 first, and after the reproduction is completed, subsequently processes the branch information 1106 to process other partial audio / video information. A branch screen for selecting video / audio information is displayed. Then, the viewer selects a desired option, here, the partial video / audio information 1107 is assumed.
Is selected, the branch table 1113
Based on the related information / audio information 1127 and 1129 which manage the pointers to the multiple versions of the associated video / audio information 1127 and 1129 related to the partial video / audio information 1107,
One of the 29 reproduction start addresses is selected and set by a predetermined algorithm. Here, suppose that the reproduction start address of the related video / audio information 1127 is “Sub-star”.
Assuming that “t1-1” is set, the related video / audio information 1127 is reproduced, and after the reproduction, the partial video / audio information 1107 is reproduced.
And reproduces the partial video / audio information 1107. Partial video / audio information 1107
Is a process similar to the above, and this process is repeatedly performed.

As described above, in the conventional broadcasting system, after reproducing (or before reproducing) the partial video / audio information (program), the related video / audio information (CM or the like) more suited to the taste of the viewer.
Can be reproduced, and a system is provided in which a viewer does not need to view unnecessary related video / audio information. Also, since the broadcast data as described above is stored in the storage unit 1008, the viewer can view the program any number of times.

[0013]

By the way, in such a broadcasting system, the received and stored broadcast data becomes older as time passes, and depending on the content, there is a possibility that the broadcast data becomes unnecessary as information. The broadcast data is updated as appropriate. At the time of this update, in the above-mentioned conventional broadcasting system, the data structure of the broadcast data used is a format in which partial video / audio information is simply associated with related video / audio information related to the partial video / audio information by a plurality of tables. For each of the partial video and audio information and each of the related video and audio information, the data structure does not have a concept of managing the version. It could not be updated in the related video / audio information unit, and all data had to be replaced. For this reason, there is a problem of inefficiency, for example, information that does not need to be updated is updated again.

An object of the present invention is to solve such a problem, and a first object of the present invention is to provide a broadcast device and a broadcast reproduction device capable of partially updating broadcast data.

It is a second object of the present invention to provide a broadcast device and a broadcast reproduction device capable of partially adding broadcast data.

It is a third object of the present invention to provide a broadcast apparatus and a broadcast reproduction apparatus capable of partially deleting broadcast data.

[0017]

A broadcasting apparatus according to the present invention is provided with program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and for each related information. To small management information that manages at least version information of related information and small management information that is provided in each of the plurality of partial program information and manages at least version information of the partial program information and related information related to the partial program information. , And broadcast data including large management information for managing pointers to each piece of middle management information.

Further, in the broadcasting device according to the present invention, the small management information includes a protection flag of a viewer setting indicating whether or not the related information is protected, identification information of the related information, and updating or adding of the related information. An update content identification flag for identifying update content, wherein the middle management information includes a protection flag of a viewer setting indicating whether or not to protect the partial program information; identification information of the partial program information; It has an update content identification flag for identifying update of program information and additional update content.

A broadcast reproducing apparatus according to the present invention is provided for each piece of program information composed of a plurality of pieces of partial program information, related information corresponding to each of the plurality of pieces of partial program information, and at least the related information. Manages small management information for managing version information and a pointer to small management information provided in each of the plurality of partial program information and managing at least version information of the partial program information and related information related to the partial program information. Receiving means for receiving broadcast data comprising medium management information to be performed and large management information for managing pointers to each piece of medium management information; storage means for storing the broadcast data received by the receiving means; Playback means for reading out and playing back the broadcast data, wherein the playback means includes old middle management information of each of the old broadcast data already stored in the storage means. Each piece of new broadcast data newly received by the receiving means is compared with the new middle management information based on the version information for each piece of information for which the partial program information to be managed matches. The pointer of the management information is operated, and the old small management information of each of the old broadcast data and the new small management information of the new broadcast data are converted to the version of each of the related information to be managed. The comparison is performed based on the information, and the pointer included in the old middle management information is operated according to the comparison result.

In the broadcast reproducing apparatus according to the present invention, when the reproducing means determines that the version information included in the new middle management information is newer than the version information included in the old middle management information, the playing means adds the old large management information to the old large management information. When the pointer to the new small management information is added and the pointer to the old small management information is deleted, and it is determined that the version information of the new small management information is newer than the version information of the old small management information, , A pointer to the new small management information is added to the old middle management information, and a pointer to the old small management information is deleted.

Further, in the broadcast reproducing apparatus according to the present invention, the middle management information has a viewer setting protection flag indicating whether to protect the partial program information, and the reproducing means has the new middle management information. When it is determined that the version information is newer than the version information included in the old middle management information, a pointer to the new middle management information is added to the old large management information, and protection is performed by referring to a protection flag of the old middle management information. If it is set to the effect, the pointer to the old middle management information is not deleted from the old large management information, and the small management information is set in the viewer setting indicating whether related information is protected or not. If the reproducing means has a protection flag and determines that the version information of the new minor management information is newer than the version information of the old minor management information, If the setting is made to protect the old small management information by referring to the protection flag of the old small management information, the pointer to the old small management information is not deleted from the old middle management information. .

A broadcast reproducing apparatus according to the present invention is provided with program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and for each related information. Small management information that manages identification information and version information, and small management information that is provided in each of the plurality of partial program information and manages at least identification information of the partial program information, version information, and related information related to the partial program information Pointer to, medium management information to manage, and receiving means for receiving broadcast data consisting of large management information to manage the pointer to each medium management information,
Storage means for storing the broadcast data received by the receiving means,
Reproducing means for reading out and reproducing the broadcast data stored in the storage means, wherein the reproducing means compares the old broadcast data already stored in the storage means with the new broadcast data newly received by the receiving means. If it is determined that new medium management information having identification information that does not exist in the old broadcast data is present in the new broadcast data, a pointer to the new medium management information is added to the old large management information. If it is determined that new small management information having identification information not present in the broadcast data exists in the new broadcast data, a pointer to the new small management information is added to the old middle management information.

A broadcast reproducing apparatus according to the present invention is provided with program information composed of a plurality of pieces of partial program information, related information corresponding to each of the plurality of pieces of partial program information, and for each piece of related information. Small management information that manages identification information and version information, and small management information that is provided in each of the plurality of partial program information and manages at least identification information of the partial program information, version information, and related information related to the partial program information Pointer to, medium management information to manage, and receiving means for receiving broadcast data consisting of large management information to manage the pointer to each medium management information,
Storage means for storing the broadcast data received by the receiving means,
Reproducing means for reading out and reproducing the broadcast data stored in the storage means, wherein the reproducing means compares the old broadcast data already stored in the storage means with the new broadcast data newly received by the receiving means. If it is determined that the medium management information having the identification information existing in the old broadcast data does not exist in the new broadcast data, the pointer to the corresponding old medium / small management information is deleted from the old large management information, When it is determined that the small management information having the identification information existing in the old broadcast data does not exist in the new broadcast data, the pointer to the old small management information is deleted from the old middle management information.

In the broadcast reproducing apparatus according to the present invention, the large management information has identification information of the program information, and the reproducing means has the new large management information among the old broadcast data already stored in the storage unit. The comparison is performed based on the version information of the partial program information and the related information for the same identification information of the program information.

Further, in the broadcast reproducing apparatus according to the present invention, while the partial program information of the broadcast data is classified into categories, each related information of the broadcast data is composed of a plurality of types, and the identification information of the middle management information is included. Is composed of category identification information to which the partial program information belongs, and each type is classified into a category. The identification information of the small management information is composed of the category identification information to which the related information belongs, and the small management information is Provided for each type of information,
The reproducing means performs a comparison based on the version information for each of the old broadcast data already stored in the storage unit and having the same category identification information of the partial program information included in the new middle management information. The comparison based on the version information is performed for each of the related information having the same category identification information.

In the broadcast reproducing apparatus according to the present invention, the middle management information has an update content identification flag capable of identifying update content of update, addition and deletion of the partial program information,
The reproducing means reproduces the large management information and each of the medium management information collectively by reproducing the broadcast data, and displays a first screen having options based on the category identification information of each of the medium management information. , Based on the update content identification flag that each medium management information has, to display the update content for each partial program information so that it can be identified,
The small management information has an update content identification flag capable of identifying the update content of update, addition and deletion of the related information, and the reproducing means collects each of the medium management information and each small management information by reproducing the broadcast data. To display a second screen having options based on the category identification information of each of the small management information. At this time, the second screen is updated for each related information based on the update content identification flag of each of the small management information. It is displayed so that the contents can be identified.

[0027]

FIG. 1 is a diagram showing a data structure of broadcast data transmitted from a broadcast device 1009 to a broadcast reproduction device 1010 according to an embodiment of the present invention. It should be noted that the configuration of a broadcast system including a broadcast device 1009 to which the broadcast data is applied and a broadcast reproduction device 1010 is the same as that shown in FIG.
001, a data server 1002, and a broadcast unit 1003.
4. Storage control unit 1005, playback unit 1006, display unit 10
07, a storage unit 1008, and a broadcasting device 1009
Is configured to broadcast broadcast data, and the broadcast reproduction device 1010 is configured to receive the broadcast data broadcasted from the broadcast device 1009 and store the broadcast data in the storage unit 1008, and the viewer makes a reproduction request via the display unit 1007. This allows the user to view the program any number of times later, and at the time of viewing, can selectively view information according to his or her preference.

This embodiment is characterized in that version management is performed for each piece of video and audio information (that is, for each piece of video and audio information and for each piece of related video and audio information) by management information provided in a hierarchical manner. Specifically, as shown in FIG. 1, specifically, as shown in FIG. 1, the large management information 101 is provided in the upper layer, and a plurality of pieces (Part 1 to Pa in FIG.
middle management information 201 for managing each version information of the partial video / audio information
To 204, small management information 401 to 408 for respectively managing version information of a plurality of related video and audio information are provided in a lower layer, and partial video and audio information 301 to 30 are provided.
4 and the related video / audio information 501 to 508 in the middle management information 2
By linking the pointers to the small management information 501 to 508 in the large management information 101 to the middle management information 201 to 204 in the large management information 101, the entire hierarchy below the middle management information 201 to 204 is broadcasted by one pointer. The data is managed, and the pointers of the large management information 101 and the middle management information 201 to 204 are operated, so that it is possible to change, add, and delete each video and audio information. Note that the numbers in parentheses on the right side of each of the middle management information 201 to 204 in the figure clearly indicate the Part number of the management target partial video / audio information, and the respective small management information 401 to 408
The numbers in parentheses on the right side of the stipulate the Part number of the partial video and audio information having a corresponding relationship and the Type number of the related video and audio information to be managed, which is not particularly necessary in the following description. Will not be described.

Hereinafter, each information of FIG. 1 will be described in detail with reference to the drawings as appropriate.

FIG. 2 is a diagram showing the structure of the large management information 101 of FIG. The large management information 101 includes a program identifier 102,
It is configured to include items of pointers 111 to 11m to each of the middle management information (1) to middle management information (m). The program identification name 102 is generally given a name indicating the content of a broadcast program. For example, when the content of a broadcast program is so-called fashion information, the name is “fashion information”.

In FIG. 1, partial video / audio information 301 to
Reference numeral 304 denotes a plurality of broadcast program contents, each of which is divided into a plurality of parts (in FIG. 2, for convenience, four parts Part1 to Part4), each of which includes independent partial program contents composed of a moving image, a sound, and the like. I have. For example, if the content of the broadcast program is “fashion information” as described above, the partial video / audio information 301 to 304 are video / audio such as “digest”, “clothes”, “shoes”, and “accessories”, respectively. The information will be relevant.

FIG. 3 is a legend (medium management information) of each of the middle management information (1) 201 to middle management information (4) 208 in FIG.
(m)). The medium management information (m) is an attribute of the partial video / audio information (Part-m) to be managed, which is a category identifier 211, a version number 212, a playback start / end address 213, a protection flag 214, a new / old flag 215,
It is configured to include items of pointers 221 to 22n to small management information (m-1) to small management information (mn). Explaining each item in detail, the category identifier 211 is a medium management when the partial video / audio information 301 to 304 is video / audio information such as “digest”, “clothes”, “shoes”, and “small articles”, respectively. The category identifiers 211 of the information 201 to 204 are “digest”,
They are "clothes", "shoes", and "accessories".

The reproduction start / end address 213 is a start address and an end address when reproducing the partial video / audio information (Part-m).
-204, “Start1 ・ End1”, “Start2
"End2", "Start3 / End3", "Start4 / End4" are set.

The pointers 221 to 22n to the small management information (m-1) to the small management information (mn) are related video / audio information (Part-m, Part-m, Type
-n) is a pointer to each of the small management information (mn) provided for each Type described later. Specifically, in the middle management information 201, a pointer to the small management information 401 is set,
In the middle management information 202, pointers to the small management information 402 and 403 are set, and in the middle management information 203, the small management information 4 is set.
04 and 405 are set, and the middle management information 20 is set.
4, pointers to the small management information 406 to 408 are set.

The protection flag 214 indicates the partial video / audio information (P
art-m), which indicates whether or not to be left without being deleted during the version upgrade process described below, and is set by the viewer.

The new / old flag 215 is an unregistered partial video / audio information (Part-m) and a related video / audio information (Part-m, Type-n) related to the partial video / audio information (Part-m). It indicates whether or not there is a playback item. By default, it is set to “old” (meaning that all items have been played), and “new” (not yet updated) during the version upgrade process described below. The setting is changed to "reproduced", and when there are no unreproduced items, the setting is returned to "old".

In FIG. 1, reference numeral 501 denotes related video / audio information of Type 1 related to the partial video / audio information 301 of Part 1, and reference numerals 502 and 503 respectively relate to Type 1 and Type 2 related to the partial video / audio information 302 of Part 2. 504 and 505 are Type1 and Type2 related video and audio information related to the Part3 partial video and audio information 303, respectively, and 504, 505 and 506 are respectively
Type1 and Typ related to the partial video and audio information 304 of Part3
e2 and Type3 related video and audio information. Where, for example,
The partial video / audio information 302 of Part2 is "clothes"
If the related audiovisual information of 2 is an advertisement for clothes, Type1, Type
The second related video / audio information 502 and 503 correspond to “CM for gentlemen”, “CM for women”, and the like, respectively.

FIG. 5 is a diagram showing the respective structures of the small management information (1-1) 401 to the small management information (4-3) 408 in FIG. 1 by using a legend (small management information (mn)). The small management information (mn) is an attribute of the related video / audio information (Part-m, Type-n) to be managed, which is a category identifier 411, a version number 412, a reproduction start / end address 413, a protection flag 414, and an update. It has a plurality of items of a new and old flag 415 and an update flag 416 that constitute a content identification flag. The items of the category identifier 411, the version number 412, the reproduction start / end address 413, and the protection flag 414 are semantically the same as the contents of each item described in FIG. 4 except that the management target is changed to the related video / audio information. Therefore, the description is omitted here.

The new / old flag 415 indicates whether or not the related video / audio information (Part-m, Type-n) to be managed has not been played back, and is set to “old” (meaning played back) by default. During the version upgrade process described below, the setting is changed to “new” (meaning that the content has not been played back), and then the relevant video / audio information (Part-m, Type-n)
Is restored to "old" which means that it has been reproduced once.

The update flag 416 is a flag that is set when the content of the version upgrade is "update" of update / addition / deletion. Specifically, for example, the version upgrade from Ver.1 to Ver.2 is performed. It will be set when it is.

A category identifier 411 is an identifier of a category to which each of the above types of related video / audio information (Part-m, Type-n) belongs. For example, in the small management information 402 and 403, in the above example, "CM for gentlemen", "C for women"
M ”and the like. The reproduction start / end address 413, specifically, in the small management information 401,
"Sub-S1-1-Ver1 / Sub-E1-1-Ver1" is set, and "Sub-S2-1-Ver1 / Sub-E2-1-Ver1" is set in the small management information 402.
Is set. The other small management information 403 to 408 are set in the same manner.

Small management information 401 having such a configuration
Are stored in the middle management information 201 to 204 corresponding to the parent, so that each of the partial video and audio information 301 to 304 and each of the related information 501 to 508 related to the partial video and audio information 301 to 304 are stored. And a data structure for linking them correspondingly.

FIG. 5 shows that the reproducing unit 1006 stores the large management information 10
FIG. 9 is a diagram illustrating an example of a menu screen 601 displayed on the display unit 1007 when 1 and the middle management information 201 to 204 are processed. The menu screen 601 is a screen for prompting the viewer to select desired information. As shown in the figure, “fashion information”, which is the program identification name 102 of the large management information 101, is displayed as a heading. Management information 2
“Digest”, “Clothes”, “Shoes”, “Accessories”, and “End”, which are the category identification names 211 of 01 to 204, are displayed as options. Then, on the menu screen 601, each option can be selected by a moving cursor such as “→”.

On the menu screen 601, protection can be set for information that should be protected without being deleted during the version upgrade process described below. The operation is performed, for example, by moving the cursor to a desired position for protection setting and pressing a protection key of a remote control (not shown). A protection mark 611 is displayed on the left side of the option for which protection setting has been made. The viewer is notified of the completion. Such protection settings are used, for example, as a means for preventing favorite contents (partial video / audio information, related video / audio information) from being deleted without permission. Although FIG. 5 shows a case where one of the options of “clothes” is set for protection, a plurality of options can be set. The protection flag 214 of the middle management information 202 corresponding to the option “clothes” for which protection has been set in this way is set to “protect”, and the options “digest”, “shoes”,
Medium management information 201, 203, 20 for each "small item"
The protection flag 214 of No. 4 remains at the default setting “not protected”.

Then, on the menu screen 601, "clothes" is displayed.
Is selected, the reproduction of the middle management information 202 is started.
The partial video / audio information 302 is reproduced based on the end address 213 “Start1 / End1”. Then, when the partial video / audio information 302 ends, the reproducing unit 1006 displays the advertisement menu screen 602 based on the middle management information 202 and the small management information 402 and 403.

FIG. 6 shows that the reproducing unit 1006 stores the middle management information 202.
Display unit 1 when the small management information 402 and 403 are processed
FIG. 9 is a diagram showing an example of an advertisement menu screen 602 displayed on 007. The advertisement menu screen 602 is a selection screen for urging the viewer to select the related video / audio information to be reproduced next. As shown in FIG. 6, it is shown that the advertisement menu screen 602 is related to "clothes" in FIG. The information is displayed in a format further added to the heading portion, and the small management information 40 is displayed.
“CM for gentlemen”, “CM for women”, and “return” set as category identifiers 411 of the respective categories 2 and 403 are displayed as options. As with the menu screen 601 in FIG. 5, each option can be selected by a moving cursor such as “→”, and protection setting can be performed for each option. On the left side, a protection mark 621 is displayed to notify the viewer that the protection has been set. The operation for the protection setting includes the same operation as the above as an example. Although FIG. 6 shows a case where one of the options for “for women” is set for protection, a plurality of options can be set. The protection flag 414 of the small management information 403 of the option “CM for women” thus set with protection is set to “protect”, and the protection flag 414 of the option “CM for gentlemen” for which protection is not set is set to “protect”. The default setting, "Do not protect", remains.

When "CM for gentlemen" is selected on the advertisement menu screen 602, "Sub-S2-1" set in the reproduction start / end address 413 of the small management information 402 is set.
-Ver1, Sub-E2-1-Ver1 ", the related video / audio information 502 is reproduced.
2 and the small menu management information 402, 403, the advertisement menu screen 602 is displayed, and the same processing is performed. After the reproduction of the related video / audio information 502 is completed, the menu screen 601 shown in FIG. 6 may be displayed. In any case, the viewer operates the screen shown in FIG. 5 or FIG. Video and audio information and related video and audio information can be freely selected and viewed.

The operation for upgrading the broadcast data configured as described above will be described with reference to the drawings.
FIGS. 7 and 8 are flowcharts showing the operation of the version upgrade process of the broadcast data stored in the broadcast reproduction device 1010 according to one embodiment of the present invention.

In the following, a new broadcasting device 1009
And the broadcast data already stored in the storage unit 1008 of the broadcast playback device 1010 is referred to as old broadcast data. Also, management information in the new broadcast data is referred to as new large management information, new middle management information (a plurality of new middle management information in the new broadcast data is a new middle management information group), and new small management information (new A plurality of new small management information is called a new small management information group, and management information in old broadcast data is old large management information, old middle management information (a plurality of old middle management information in old broadcast data is old. Management information group) and old small management information (a plurality of old small management information in the old broadcast data is an old small management information group).

First, the broadcast reproduction device 1010 receives new broadcast data from the broadcast device 1009 (step S10).
1) Search for old broadcast data having the same program identification name 102 as new broadcast data among a plurality of old broadcast data stored in the storage unit 1008, and when there is no corresponding old broadcast data (Step S2), the process ends without performing the version upgrade process. If there is, the old management information of the old broadcast data is compared with the new management information of the new broadcast data in the following procedure.

That is, first, the new middle management information group is compared with the old middle management information group, and the category identifiers 211 match and the version number 2 is newer than the old middle management information.
It is determined whether or not the new middle management information having 12 exists in the new middle management information group. If it is determined that the new middle management information exists (step S3), a pointer to the new middle management information is added to the old large management information. Then, the new and old flags of the new medium management information are set to "new" (step S4). Then, the state of the protection flag 214 of the old middle management information corresponding to the new middle management information is checked,
If “not protected” is set (step S
5) The pointer to the old middle management information is deleted from the old large management information (step S6). By the above processing, the old version of the partial video / audio information in the old broadcast data is updated to the new version of the partial video / audio information.

On the other hand, if the protection flag 214 is set to "protect", the process proceeds to the next process without performing the process of step S6. Therefore, when the protection setting has been made, the reproduction is maintained even after the version upgrade process. That is, from the viewpoint of the viewer, by setting the protection setting for the desired option on the menu screen 601 shown in FIG. 5, it is possible to prevent the desired information from being deleted without permission.

If it is determined in step S3 that the category identifier 211 matches and the new middle management information having the newer version number 212 than the old middle management information does not exist in the new middle management information group, Checks whether the new middle management information group having the category identifier 211 that does not exist in the old middle management information group exists in the new middle management information group.
7), the new middle management information is regarded as new middle management information,
The pointer to the new medium management information is added to the old large management information, and the new and old flag 215 of the new medium management information is set to "new" (step S8). As a result, new partial video / audio information is added to the old broadcast data.

On the other hand, if it is determined in step S7 that the category identifier 2 is present in the old middle management information group and no longer exists in the new middle management information group,
It is checked whether or not the old middle management information having "11" exists in the old middle management information group (step S9). If it is determined that the old middle management information exists, a pointer to the old middle management information is set from the old large management information. It is deleted (step S10). As a result, the partial video / audio information and the related video / audio information lower than the old middle management information are collectively deleted from the old broadcast data.

Next, the reproducing unit 1006 compares the new small management information group with the old small management information group, and
Are determined, and whether new small management information having a newer version number 412 than the old small management information is present in the new small management information group is determined.
1) The pointer to the new small management information is added to the old / middle management information which is the parent of the new small management information, the new / old flag 415 of the old / middle management information is set to “new”, and the new small management is further added. The new and old flags 415 of the information are set to "new" and the update flag 416 is set (step S1).
2). Then, the state of the protection flag 412 of the old small management information corresponding to the new small management information is confirmed, and “not protected”
Is set (step S13), the pointer to the old small management information is deleted from the old middle management information that is the parent of the old small management information (step S14). Through the above processing, the old version of the related video / audio information in the old broadcast data is updated to the new version of the related video / audio information.

On the other hand, if "protect" is set, the process of step S14 is not performed, and the version upgrade process ends. Therefore, when the protection setting is made, the related video / audio information managed by the old small management information is maintained in a reproducible state even after the version upgrade process. That is, from the viewpoint of the viewer, by setting the protection setting for the desired option on the advertisement menu screen 602 shown in FIG. 6, it is possible to prevent the desired information from being deleted without permission.

If it is determined in step S11 that the category identifier 411 matches and the new small management information having the newer version number 412 than the old small management information does not exist in the new small management information group, Checks whether the new small management information having the category identifier 411 that does not exist in the old small management information group exists in the new small management information group, and determines that the new small management information exists (step S15). ), A pointer to the new small management information is added to the old / middle management information that is the parent of the new small management information, and the new / old flag 215 of the old / middle management information is set to “new”. The old and new flags 415 are set to "new" (step S16). As a result, new related video / audio information is added to the old broadcast data.

On the other hand, if it is determined in step S15 that the category identifier 411 does not exist, the category identifier 411 exists in the old minor management information but no longer exists in the new minor management information.
It is checked whether or not the old small management information having the following exists in the old small management information group. When it is determined that the old small management information exists (step S17), the pointer to the old small management information is set to the old small management information. The old middle management information corresponding to the parent is deleted (step S18). As a result, the related video / audio information managed by the old small management information is deleted from the old broadcast data.

The version upgrade process described above will be described with a specific example. In this example, in the advertisement of “Clothing” in the broadcast data of “Fashion Information”, the “CM for gentlemen” is updated from Ver.1 to Ver.2, and a new “CM for children” is added. explain. The data structure of the old broadcast data is shown in FIG. 1, and the data structure of the new broadcast data is shown in the following figure.

FIG. 9 is a diagram showing a data structure of new broadcast data transmitted from the broadcast device 1009 to the broadcast reproduction device 1010 at the time of version upgrade, and FIG. 10 is an explanatory diagram of version upgrade processing in this specific example. The hatched portions in FIG. 9 are changed portions.

In FIGS. 9 and 10, reference numeral 521 denotes related video / audio information of a new version of “CM for gentlemen”;
Reference numeral 522 denotes related video / audio information of a newly added “CM for children”. Data set in each item of the new small management information 421, 422 for managing the relevant video / audio information 521, 522 is shown in FIG. As shown.

Hereinafter, the version upgrade process in the above specific example will be described with reference to FIG. 10 according to the flowcharts shown in FIGS. In this specific example, since there is no update related to the partial related video / audio information, only the update related to the related video / audio information, the processing based on the flowchart of FIG. The explanation is given schematically, and FIG.
The version upgrade process based on the flowchart of FIG.

The reproducing unit 1006 compares the new broadcast data received from the broadcasting device 1009 with the old broadcast data having the same program identifier 102 “fashion information” as the new broadcast data based on the middle management information. (Step S1
Step S10) Next, the process proceeds to the comparison between the old small management information group and the new small management information group.

The reproducing unit 1006 compares the old small management information group with the new small management information group, and matches the category identification name 411 with “CM for gentlemen” and the new small management information 421 with the new version number 412. Because it exists (step S1
1), a pointer to the new small management information 421 is added to the old middle management information 202 (arrow A in FIG. 10), and the new old flag 215 and the new old flag 415 of the old middle management information 202 and the new small management information 421 are added. Each is set to “new” (arrow B in FIG. 10), and the update flag 416 of the new small management information 421 is set (step S12) (arrow C in FIG. 10). Then, the protection flag 41 of the old small management information 402
4, the pointer to the old small management information 402 is deleted from the old middle management information 202 (arrow D in FIG. 10) (step S14). As a result, thereafter, the CM for the gentleman of Ver. 1 will not be broadcast, and the new version of “CM for gentleman” will be replaced.
M "is ready for broadcasting.

On the other hand, in step S11, the new small management information 422 having the category identifier 411 "CM for children" which does not exist in the old small management information group exists in the new small management information group. A pointer to the information 422 is added to the old middle management information 202 (arrow E in FIG. 10), and the new / old flag 415 of the old middle management information 202 is set to “new”.
(Note that in this specific example, it is already set to “new” in the previous step S13 and is kept as it is)
Further, the new / old flag 415 of the new / small management information 422 is set to “new”.
(Arrow F in FIG. 10), and the version upgrade process ends.

FIG. 11 is a diagram showing an example of a menu screen 601a displayed on the display unit 1007 when the reproducing unit 1006 processes the large management information 101 and the medium management information 201 to 204 after the completion of the above-described upgrade process. It is. As shown in FIG. 11, on the menu screen 601a, the update notification mark 612 (here,

[Exemplary case where "new / updated information is available") is performed. At the time of this update notification display, the playback unit 1006
The new / old flag 215 of each of the middle management information 201-204 and each of the small management information 401, 421, 403, 422, 404-
Reference is made to the new / old flag 415 and the update flag 416 in 408 to identify the update content based on each of these flags.
An update notification mark indicating the corresponding update content is displayed.

That is, when the new and old flags 415 are “new”,
When the update flag 416 has not been set, “add” (new arrival), the new and old flag 415 is “new”, and the update flag 416
When the is set, “change” (update) and the update content can be identified, and the reproducing unit 1006 outputs the new and old flags 215 and 4.
If any one of 15 is set to “new”

"New information available" is displayed, and in addition, if the update flag 416 is set,

[There is new / updated information]. "

[New / updated information] "is displayed.

As described above, since the update notification mark 612 is displayed on the menu screen 601, the viewer can recognize at a glance that the version has been upgraded.

FIG. 12 shows the display unit 1 when the reproducing unit 1006 processes the middle management information 202 and the small management information 421, 403, and 422 after the completion of the above-described version upgrade processing.
It is a figure showing an example of advertising menu screen 602a displayed on 007. Similarly to FIG. 11 described above, the update notification marks 622 and 623 (here, on the advertisement menu screen 602a, on the right side of the upgraded options,

【update】,

[New arrival] is exemplified. At the time of displaying the update notification, the reproducing unit 1006 transmits the small management information 4
01, 421, 403, 422, and 404 to 408, refer to the new and old flags 415 and the update flags 416. If the new and old flags 415 are "new" and the update flags 416 are not set, it is determined to be "addition" and "

When the new and old flags 415 are "new" and the update flag 416 is set, "change" is determined and "new" is displayed.

[Update]. For this reason, the option of “CM for gentlemen” is “

[Update] ”is displayed and“ CM for children ”is displayed as“

[New Arrival] "will be displayed.

As described above, according to the present embodiment, it is possible to update the stored broadcast data partially, that is, in units of partial video / audio information or in units of related video / audio information without replacing the entire broadcast data. As a result, the stored information can always be kept new, and a comfortable viewing environment can be provided to the viewer.

Further, since the necessary information can be left without being deleted by the protection flags 214 and 414, a more comfortable viewing environment can be provided to the viewer.

Further, in each of the menu screen 601a and the advertisement menu screen 602a, the updated notification marks 612, 622,
623 is displayed, so that it is possible to grasp at a glance the screen that the version has been upgraded.

[0073]

The broadcasting apparatus according to the present invention is provided with program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and at least one of the related information. Small management information for managing the version information of each of the plurality of partial program information, and at least version information of the partial program information and a pointer to the small management information for managing related information related to the partial program information. Broadcast data consisting of medium management information to be managed and large management information to manage pointers to each piece of medium management information is broadcasted. It is possible to update in units of partial program information and related information.

Further, in the broadcasting device according to the present invention, the small management information includes a protection flag of a viewer setting indicating whether or not the related information is protected, identification information of the related information, and update or addition of the related information. An update content identification flag for identifying update content, wherein the middle management information includes a protection flag of a viewer setting indicating whether or not to protect the partial program information; identification information of the partial program information; Since it has an update content identification flag for updating program information and identifying additional update content, the broadcast data receiving side can perform processing based on the various information and various flags described above, and Thus, it is possible to provide an effective function.

The broadcast reproducing apparatus according to the present invention is provided with program information composed of a plurality of pieces of partial program information, related information corresponding to each of the plurality of pieces of partial program information, and for each piece of related information. Manages small management information for managing version information and a pointer to small management information provided in each of the plurality of partial program information and managing at least version information of the partial program information and related information related to the partial program information. Receiving means for receiving broadcast data comprising medium management information to be performed and large management information for managing pointers to each piece of medium management information; storage means for storing the broadcast data received by the receiving means; Playback means for reading out and playing back the broadcast data, wherein the playback means includes old middle management information of each of the old broadcast data already stored in the storage means. Each piece of new broadcast data newly received by the receiving means is compared with the new middle management information based on the version information for each piece of information for which the partial program information to be managed matches. The pointer of the management information is operated, and the old small management information of each of the old broadcast data and the new small management information of the new broadcast data are converted to the version of each of the related information to be managed. Since the comparison is performed based on the information and the pointer included in the old middle management information is operated according to the comparison result, it is possible to partially update the broadcast data by the pointer operation, that is, the partial broadcast program information unit and the related information unit. This makes it possible to keep the broadcast data stored in the storage means new at all times, thereby providing a comfortable viewing environment for the viewer.

In the broadcast reproducing apparatus according to the present invention, when the reproducing means determines that the version information included in the new middle management information is newer than the version information included in the old middle management information, the playback means adds the old large management information to the old large management information. When the pointer to the new small management information is added and the pointer to the old small management information is deleted, and it is determined that the version information of the new small management information is newer than the version information of the old small management information, Since the pointer to the new small management information is added to the old middle management information and the pointer to the old small management information is deleted, the partial program information unit and the related information unit are replaced with the new version (update). This makes it possible to keep the broadcast data stored in the storage means new at all times, providing a comfortable viewing environment for the viewer. It can do today.

Further, in the broadcast reproducing apparatus according to the present invention, the middle management information has a protection flag of a viewer setting indicating whether or not to protect the partial program information, and the reproducing means has the new middle management information. When it is determined that the version information is newer than the version information included in the old middle management information, a pointer to the new middle management information is added to the old large management information, and protection is performed by referring to a protection flag of the old middle management information. If it is set to the effect, the pointer to the old middle management information is not deleted from the old large management information, and the small management information is set in the viewer setting indicating whether related information is protected or not. If the reproducing means has a protection flag and determines that the version information of the new minor management information is newer than the version information of the old minor management information, When the protection is set by referring to the protection flag of the old small management information, the pointer to the old small management information is not deleted from the old middle management information. The user can leave the partial program information and related information of the old version without deleting them, thereby providing a more comfortable viewing environment for the viewer.

The broadcast reproducing apparatus according to the present invention is provided with program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and for each related information. Small management information that manages identification information and version information, and small management information that is provided in each of the plurality of partial program information and manages at least identification information of the partial program information, version information, and related information related to the partial program information Pointer to, medium management information to manage, and receiving means for receiving broadcast data consisting of large management information to manage the pointer to each medium management information,
Storage means for storing the broadcast data received by the receiving means,
Reproducing means for reading out and reproducing the broadcast data stored in the storage means, wherein the reproducing means compares the old broadcast data already stored in the storage means with the new broadcast data newly received by the receiving means. If it is determined that new medium management information having identification information that does not exist in the old broadcast data is present in the new broadcast data, a pointer to the new medium management information is added to the old large management information. When it is determined that the new small management information having the identification information not present in the broadcast data exists in the new broadcast data, a pointer to the new small management information is added to the old middle management information.
It can be added in units of partial program information and related information.

The broadcast reproducing apparatus according to the present invention is provided with program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and for each related information. Small management information that manages identification information and version information, and small management information that is provided in each of the plurality of partial program information and manages at least identification information of the partial program information, version information, and related information related to the partial program information Pointer to, medium management information to manage, and receiving means for receiving broadcast data consisting of large management information to manage the pointer to each medium management information,
Storage means for storing the broadcast data received by the receiving means,
Reproducing means for reading out and reproducing the broadcast data stored in the storage means, wherein the reproducing means compares the old broadcast data already stored in the storage means with the new broadcast data newly received by the receiving means. If it is determined that the medium management information having the identification information existing in the old broadcast data does not exist in the new broadcast data, the pointer to the corresponding old medium / small management information is deleted from the old large management information, When it is determined that the small management information having the identification information existing in the old broadcast data does not exist in the new broadcast data, the pointer to the corresponding old small management information is deleted from the old middle management information. , Partial program information units and related information units.

In the broadcast reproducing apparatus according to the present invention, the large management information has identification information of the program information, and the reproducing means has the new large management information among the old broadcast data already stored in the storage means. Since the comparison is made based on the version information of each of the partial program information and the related information for the same identification information of the program information, the above effects can be obtained in a broadcast reproducing apparatus for reproducing a plurality of broadcast data. It becomes possible.

Further, in the broadcast reproducing apparatus according to the present invention, while the partial program information of the broadcast data is classified into categories, each related information of the broadcast data is composed of a plurality of types, and each type is classified into a category. The identification information included in the middle management information includes the category identification information to which the partial program information belongs, the identification information included in the small management information includes the category identification information to which the related information belongs, and the small management information includes the related information. Provided for each type of
The reproducing unit performs a comparison based on the version information for each of the old broadcast data already stored in the storage unit and having the same category identification information of the partial program information included in the new middle management information. Since the comparison is made based on the version information for each category having the same category identification information of the related information, the partial program information is configured for each category, and each related information is composed of a plurality of types for each category. The above effects can be achieved in a broadcast reproducing apparatus for reproducing data.

In the broadcast reproducing apparatus according to the present invention, the middle management information has an update content identification flag capable of identifying update content of update, addition and deletion of partial program information,
The reproducing means reproduces the large management information and each of the medium management information collectively by reproducing the broadcast data, and displays a first screen having options based on the category identification information of each of the medium management information. , Based on the update content identification flag that each medium management information has, to display the update content for each partial program information so that it can be identified,
The small management information has an update content identification flag capable of identifying the update content of update, addition and deletion of the related information, and the reproducing means collects each of the medium management information and each small management information by reproducing the broadcast data. To display a second screen having options based on the category identification information of each of the small management information. At this time, the second screen is updated for each related information based on the update content identification flag of each of the small management information. Since the content is displayed so that it can be identified,
The viewer can grasp at a glance the screen that there is update information or additional information.

[Brief description of the drawings]

FIG. 1 is a diagram showing a data structure of broadcast data transmitted from a broadcast device to a broadcast playback device according to one embodiment of the present invention.

FIG. 2 is a diagram showing details of large management information of FIG. 1;

FIG. 3 is a diagram showing details of middle management information in FIG. 1;

FIG. 4 is a diagram showing details of small management information of FIG. 1;

FIG. 5 is a diagram illustrating an example of a menu screen displayed on a display unit when a reproduction unit processes large management information and medium management information.

FIG. 6 is a diagram illustrating an example of an advertisement menu screen displayed on a display unit when a reproduction unit processes middle management information and small management information.

FIG. 7 is a flowchart (1/2) illustrating a method for upgrading the version of broadcast data stored in the broadcast reproducing apparatus according to the embodiment of the present invention.

FIG. 8 is a flowchart (2/2) showing a version upgrade method of broadcast data stored in the broadcast reproduction device according to the embodiment of the present invention.

FIG. 9 is a diagram illustrating an example of new broadcast data received from a broadcasting device at the time of updating.

FIG. 10 is an explanatory diagram of a version upgrade process.

[Fig. 11] After version upgrade of stored broadcast data,
It is a figure showing an example of a menu screen displayed on a display part when a reproduction part processes large management information and medium management information.

[FIG. 12] After upgrading the version of the stored broadcast data,
It is a figure showing an example of an advertising menu screen displayed on a display part when a reproduction part processes middle management information and small management information.

FIG. 13 is a schematic configuration diagram of a broadcast system including a conventional broadcast device and a broadcast playback device.

FIG. 14 is a diagram showing a data structure of conventional broadcast data.

[Explanation of symbols]

101 large management information, 102, program identification name, 111-1
1m Pointers to medium management information (1) to medium management information (m), 201 to 204 medium management information, 211, category identifier, 212 version number, 213 playback start / end address, 214 protection flag, 215 new and old Flags, 221 to 22n Pointers to small management information (m-1) to small management information (mn), 301 to 304 partial video / audio information, 401 to 408 small management information, 411
Category identifier, 412 Version number, 413
Playback start / end address, 414 protection flag, 415
New and old flags, 416 update flags, 501 to 508 related video and audio information, 1009 broadcast device, 1004 broadcast receiving unit, 1006 playback unit, 1007 display unit, 100
8 Storage unit, 1010 broadcast playback device.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 17/00 F term (Reference) 5C025 BA27 CA09 CB08 CB10 5C061 CC01 CC05 CC09 5C063 AB05 AC01 AC10 CA23 DA01 DA07

Claims (10)

[Claims] 1. Program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and at least version information of the related information provided for each of the related information. In managing the small management information and the pointer to the small management information provided in each of the plurality of partial program information and managing at least the version information of the partial program information and the related information related to the partial program information. A broadcasting device for broadcasting broadcast data comprising management information and large management information for managing pointers to the respective middle management information. 2. The small management information includes a protection flag of a viewer setting indicating whether or not to protect the related information, identification information of the related information, and identification of updated or added updated content of the related information. Update management identification flag, wherein the middle management information includes a viewer setting protection flag indicating whether to protect the partial program information, identification information of the partial program information, and partial program information. 2. The broadcast apparatus according to claim 1, further comprising: an update content identification flag for identifying update content and additional update content. 3. Program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and at least version information of the related information provided for each of the related information. In managing the small management information and the pointer to the small management information provided in each of the plurality of partial program information and managing at least the version information of the partial program information and the related information related to the partial program information. Receiving means for receiving broadcast data comprising management information and large management information for managing a pointer to each of the medium management information; storage means for storing the broadcast data received by the receiving means; and Playback means for reading out and playing back the stored broadcast data, wherein the playback means is adapted to read the old broadcast data already stored in the storage means. Each old middle management information and each new middle management information of the new broadcast data newly received by the receiving means,
For each piece of the program information to be managed that matches, a comparison is made based on the version information, and a pointer included in the old large management information is operated according to the comparison result. The small management information and the new small management information of each of the new broadcast data are compared based on the version information for each piece of the related information to be managed, and the old middle management information is compared according to the comparison result. A broadcast reproducing apparatus characterized by operating a pointer included in the broadcast reproducing apparatus. 4. When the reproduction means determines that the version information included in the new middle management information is newer than the version information included in the old middle management information, the playback means adds the new middle management information to the old large management information. In addition to adding a pointer to, delete the pointer to the old middle management information, and if it is determined that the version information of the new small management information is newer than the version information of the old small management information, 4. The broadcast reproducing apparatus according to claim 3, wherein a pointer to the new small management information is added to the old middle management information and a pointer to the old small management information is deleted. 5. The middle management information has a viewer setting protection flag indicating whether or not to protect the partial program information, and the reproducing means determines that the version information included in the new middle management information is the old middle management information. When it is determined that the version information is newer than the version information included in the management information, a pointer to the new middle management information is added to the old large management information, and the protection is performed by referring to the protection flag of the old middle management information. If set, the pointer to the old middle management information is not deleted from the old large management information, and the small management information is
The playback means has determined that the version information of the new small management information is newer than the version information of the old small management information. In such a case, a pointer to the new small management information is added to the old middle management information, and if the protection is set by referring to the protection flag of the old small management information, the old small management information is set. 5. The broadcast reproducing apparatus according to claim 4, wherein the pointer to the information is not deleted from the old management information. 6. Program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and at least identification information and version information of the related information provided for each of the related information. To the small management information provided for each of the plurality of partial program information, at least the identification information of the partial program information, version information, and the related information related to the partial program information. Receiving means for receiving broadcast data comprising medium management information for managing pointers and large management information for managing pointers to each of the medium management information; and storage means for storing the broadcast data received by the receiving means. And reproduction means for reading and reproducing the broadcast data stored in the storage means, wherein the reproduction means is already stored in the storage means. The old broadcast data is compared with the new broadcast data newly received by the receiving means, and it is determined that new middle management information having identification information not present in the old broadcast data is present in the new broadcast data. In such a case, a pointer to the new small and medium management information is added to the old large management information, and if it is determined that new and small management information having identification information that does not exist in the old broadcast data is present in the new broadcast data. Is a broadcast reproducing apparatus characterized in that a pointer to the new small management information is added to the old middle management information. 7. Program information composed of a plurality of partial program information, related information corresponding to each of the plurality of partial program information, and at least identification information and version information of the related information provided for each of the related information. To the small management information provided for each of the plurality of partial program information, at least the identification information of the partial program information, version information, and the related information related to the partial program information. Receiving means for receiving broadcast data comprising medium management information for managing pointers and large management information for managing pointers to each of the medium management information; and storage means for storing the broadcast data received by the receiving means. And reproduction means for reading and reproducing the broadcast data stored in the storage means, wherein the reproduction means is already stored in the storage means. The old broadcast data is compared with the new broadcast data newly received by the receiving means, and it is determined that the middle management information having the identification information existing in the old broadcast data does not exist in the new broadcast data. If so, the pointer to the corresponding old small and medium management information is deleted from the old large management information, and it is determined that the small management information having the identification information existing in the old broadcast data does not exist in the new broadcast data. In such a case, the broadcast reproducing apparatus deletes the pointer to the old small management information from the old middle management information. 8. The large management information includes identification information of program information, and the reproducing means identifies the program information included in the new large management information among the old broadcast data already stored in the storage means. 8. The broadcast reproducing apparatus according to claim 3, wherein the comparison is performed based on the version information of each of the partial program information and the related information for the same information. 9. The partial program information of the broadcast data is classified into categories, while the related information of the broadcast data is composed of a plurality of types, and each type is classified into a category. The identification information is composed of the category identification information to which the partial program information belongs, the identification information of the small management information is composed of the category identification information to which the related information belongs, and the small management information is provided for each type of the related information. Is provided, the reproducing means, among the old broadcast data already stored in the storage means, performs a comparison based on version information for each of the same category identification information of the partial program information included in the new management information, The method according to claim 3, wherein the comparison based on the version information is performed for each of the same category identification information of the related information included in the middle management information. A broadcast playback device according to any one of claims 8 to 10. 10. The medium management information includes an update content identification flag capable of identifying update content of update, addition, and deletion of partial program information, and the playback unit plays back the broadcast data by playing back the broadcast data. The management information and the respective middle management information are collectively reproduced to display a first screen having an option based on the category identification information included in the respective middle management information. At this time, the first screen includes the respective middle management information. An update content identification flag is displayed based on the update content identification flag so that the update content can be identified for each of the partial program information, and the small management information is an update content identification capable of identifying the update content of update, addition and deletion of the related information. The reproducing means has a flag, and the reproducing means reproduces the broadcast management data so as to collectively reproduce the respective medium management information and the respective small management information, and the respective small management information is A second screen having options based on the respective category identification information is displayed. At this time, the update content can be identified for each of the related information based on the update content identification flag of each of the small management information. The display is made as follows.
The broadcast reproduction device according to any one of the above.