JP2001285813A - Receiver, transmitter and receiving method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receiver and a receiving method capable of using the contents of a systematic database corresponding to a broadcasted program, etc., by a simple method by preparing the database. SOLUTION: The receiver is provided with an information receiving part 13 for receiving program attribute information having at least one attribute data provided with a tag showing the attribute of a broadcasting program, a schema construction part 14 for constructing a database schema corresponding to the tag received by the part 13, a schema management part 15 for managing the database schema and an information storing part 16 for storing the database schema and attribute data received by the part 13 as a database.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving apparatus for receiving a data broadcast and creating a database based on the broadcast.
And a receiving method, and a transmitting device for transmitting a data broadcast.

2. Description of the Related Art Conventionally, in commercial broadcasting, a commercial program (hereinafter abbreviated as “CM”) has been broadcast between programs such as news and drama, and the program has been paid for by a sponsor fee from a sponsor of the CM. Has been produced. Since the content of the CM is mainly an introduction of a new product, the viewer of the program can obtain information on the new product through the CM.

[0002] In recent television receivers, by receiving a data broadcast, an electronic program guide (hereinafter abbreviated as “EPG”) included in the data can be displayed on a monitor. By viewing the EPG displayed on the monitor, the viewer can know the channel and time of the broadcast program.

[0003]

However, even if you want to see the content of the broadcasted CM again at a later date,
It cannot be seen unless it is recorded on video.
Further, even when recording, there is a problem that it is troublesome for a viewer to search for and reproduce the recorded place. Furthermore, since the content broadcasted in commercials is only a small part of the product introduction, there is a problem that if you want to know more details, you have to call the maker etc. and request a catalog. .

[0004] Further, although information such as the broadcast time of a program can be obtained by looking at the EPG, it is not possible to obtain detailed information on CMs attached to the program or broadcasted in the program. Did not.

[0005] The present invention has been made in view of the above-described problems, and it is possible to create a systematic database corresponding to broadcasted CMs and the like, and to view the contents in a simple manner. It is an object of the present invention to provide a receiving device, a receiving method, and a transmitting device for broadcasting a program, which can obtain detailed information automatically or by a simple method.

[0006]

In order to achieve the above object, a receiving apparatus according to the present invention provides an information receiving apparatus for receiving program attribute information having at least one attribute data tagged with a tag indicating an attribute of a broadcast program. A schema construction unit for constructing a database schema including attributes corresponding to respective tags in the program attribute information received by the information receiving unit, and a schema management unit for managing the database schema constructed by the schema construction unit. The attribute data in the program attribute information received by the information receiving unit, the attribute in the database schema managed by the schema management unit,
And an information storage unit for storing the data in the data storage area of the attribute corresponding to the tag added to the attribute data.

[0007] Further, a receiving apparatus of the present invention includes an information receiving unit for receiving program attribute information having at least one attribute data tagged with a tag, and a tag indicating a correspondence between the tag and an attribute constituting a database schema. A tag attribute correspondence information receiving unit that receives attribute correspondence information, a tag attribute correspondence information storage unit that stores the tag attribute correspondence information, a schema management unit that manages a database schema, and a tag attribute correspondence information storage unit An information storage unit for storing the program attribute information received by the information receiving unit in a database schema managed by the schema management unit based on the tag attribute correspondence information.

[0008] The receiving apparatus of the present invention further includes a program receiving unit for receiving a program, wherein the information receiving unit stores the program received by the program receiving unit and the program attribute information received by the information receiving unit. Further receiving synchronization information that is information for synchronizing, the schema builder further adds an attribute for storing the synchronization information to the database schema,
The information storage unit may further store the synchronization information received by the information reception unit in a data storage area of a corresponding attribute in the database schema.

The receiving apparatus according to the present invention further includes a program receiving section for receiving a program, wherein the information receiving section stores the program received by the program receiving section and the program attribute information received by the information receiving section. Further receiving synchronization information that is information for synchronizing, the database schema managed by the schema management unit also has an attribute for storing synchronization information,
The information storage unit may further store the synchronization information received by the information reception unit in a data storage area of a corresponding attribute in the database schema.

[0010] The receiving apparatus of the present invention further comprises a program storage unit for storing programs received by the program receiving unit, an information display unit for displaying program attribute information stored in the information storage unit, A synchronization information acquisition unit that acquires synchronization information corresponding to information from the information storage unit, and a program reproduction unit that extracts a program stored in a program storage unit based on the synchronization information acquired by the synchronization information acquisition unit and reproduces the program. It is further characterized by being provided.

[0011] The receiving apparatus of the present invention may further include a signal receiving unit that receives a switching signal that is a signal for switching program attribute information displayed on the information display unit, and a receiving unit that receives the switching signal when the signal receiving unit receives the switching signal. A display control unit that instructs the information display unit to switch display according to the switching signal, wherein the information display unit switches between program attribute information displayed according to the instruction of the display control unit and a program. It is assumed that.

Also, the receiving apparatus of the present invention receives acquisition information for acquiring program detailed information corresponding to the program attribute information received by the information receiving unit, and transmits the program detailed information corresponding to the program attribute information. The apparatus further includes a detailed information acquisition unit that acquires in accordance with the acquisition information, and a detailed information storage unit that stores the program detailed information acquired by the detailed information acquisition unit in association with the program attribute information. is there.

[0013] Further, the receiving apparatus of the present invention comprises a program information storage unit for storing one or more program information having a program identifier for identifying a program and a broadcast start time of the program, and a program for displaying the one or more program information. A table display unit, an instruction input unit for inputting an instruction for selecting a program cell indicating one program from the program table displayed on the program table display unit, and a program cell selected by the instruction input on the instruction input unit A program identifier acquiring section for extracting a program identifier to be executed, a detailed information acquiring section for acquiring program detailed information using the program identifier acquired by the program identifier acquiring section as a key, and a program detailed information acquired by the detailed information acquiring section. And a detailed information storage unit for storing the detailed information in association with the program identifier.

[0014] In the receiving apparatus of the present invention, the information receiving unit may receive an update flag indicating that the detailed program information has been updated and the acquired information, and the detailed information acquiring unit may acquire the detailed program information in accordance with the acquired information. The detailed information storage unit overwrites the detailed program information acquired by the detailed information acquisition unit with the detailed program information corresponding to the program attribute information.

Further, the transmitting apparatus of the present invention transmits tag attribute correspondence information indicating correspondence between tags and attributes constituting a database schema.

Further, the transmitting apparatus of the present invention transmits acquired information for identifying updated program detailed information.

[0017] In addition, the receiving method of the present invention comprises: an information receiving step of receiving program attribute information having at least one attribute data tagged with a tag indicating an attribute of a broadcast program; A schema construction step of constructing a database schema composed of attributes corresponding to the respective tags in the attribute information; and an attribute in the database schema constructed in the schema construction step and added to the attribute data received in the information receiving step In the data storage area of the attribute corresponding to the tag
And an information storing step of storing the attribute data.

[0018] Further, the receiving method of the present invention includes an information receiving step of receiving program attribute information having at least one attribute data tagged by a tag, and a tag indicating a correspondence between the tag and an attribute constituting a database schema. A tag attribute correspondence information receiving step of receiving attribute correspondence information; and, based on the tag attribute correspondence information, storing the attribute data in a data storage area of an attribute corresponding to the tag added to the attribute data received in the information receiving step. And storing information to be stored.

Further, the receiving method of the present invention further comprises a program receiving step of receiving a program, wherein information for synchronizing the program received in the program receiving step with the program attribute information received in the information receiving step is provided. Some synchronization information
The information receiving step further receives, and in the schema construction step, an attribute for storing synchronization information is further added to a database schema, and in the information storage step, the synchronization information received in the information receiving step is further added to the database. It is stored in a data storage area of a corresponding attribute in the schema.

Further, the receiving method of the present invention further comprises a program receiving step of receiving a program, wherein information for synchronizing the program received in the program receiving step with the program attribute information received in the information receiving step is provided. Some synchronization information
Further received in the information receiving step, the tag attribute correspondence information also has an attribute corresponding to synchronization information, and in the information storing step, the synchronization information received in the information receiving step is stored in a data storage area of the attribute. It is characterized by storing.

[0021] In the receiving method of the present invention, the program storing step includes storing a program received in the program receiving step and synchronizing information corresponding to the program attribute information received in the information receiving step. An information display step of taking out the stored program and displaying the program and the program attribute information received in the information receiving step is further provided.

Further, in the receiving method of the present invention, a signal receiving step for receiving a switching signal for switching information to be displayed in the information displaying step; And a display control step of giving an instruction to switch the display according to the information display step, wherein the information display step switches between program attribute information to be displayed according to the instruction in the display control step and a program.

[0023] The receiving method of the present invention may further comprise a step of receiving acquisition information for acquiring program detailed information corresponding to the program attribute information received in the information receiving step, and transmitting the program detailed information corresponding to the program attribute information. The method further comprises: a detailed information obtaining step of obtaining in accordance with the obtained information; and a detailed information storing step of storing the program detailed information obtained in the detailed information obtaining step in association with the program attribute information. is there.

[0024] The receiving method of the present invention may further comprise a program information storing step of storing at least one program information having a program identifier for identifying the program and a broadcast start time of the program, and a program displaying the at least one program information. A table display step, a command receiving step of receiving a command for selecting a program cell indicating one program from the program table displayed in the program table display step, and a program cell corresponding to the program cell selected by the command received in the command receiving step. A program identifier obtaining step for extracting a program identifier, a detailed information obtaining step of obtaining detailed program information by using the program identifier obtained in the program identifier obtaining step as a key, and the program detailed information obtained in the detailed information obtaining step. And a detailed information storing step of storing the detailed information in association with the identifier.

Further, in the receiving method according to the present invention, the information receiving step may further include receiving an update flag indicating that the detailed program information has been updated, and receiving the update flag in the information receiving step. Acquiring detailed program information according to the acquired information in the step, and overwriting the detailed program information acquired in the detailed information acquiring step with the detailed program information corresponding to the program attribute information in the detailed information storing step. Things.

[0026]

Embodiment 1 Hereinafter, a receiving apparatus and a receiving method according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of the receiving apparatus according to the first embodiment. The receiving device 10 includes a program receiving unit 11, a program storing unit 12, an information receiving unit 13, a schema constructing unit 14, a schema managing unit 1,
5, an information storage unit 16, a synchronization information acquisition unit 17, a program reproduction unit 18, and an information display unit 19.

The program receiving section 11 receives a program. The program storage unit 12 stores the program received by the program receiving unit 11. The information receiving unit 13 sets the tagged attribute data to 1
Receiving program attribute information including at least one program attribute. Then, the tagged attribute data is output to the information storage unit 16 and the tag is output to the schema construction unit 14. Here, the tag indicates an attribute of the tagged attribute data. The tag includes synchronization information for synchronizing the program received by the program receiving unit 11 with the program attribute information received by the information receiving unit 13. Note that the synchronization information indicates a file name of a program stored in the program storage unit 12, and for example, “0001.CM” is used.

FIG. 2 is a diagram showing an example of the program attribute information input to the information receiving unit 13. The example shown in FIG.
This is program attribute information on CM. The program attribute information input to the information receiving unit 13 includes, for example, “<product category>” as a tag, as shown in the second line of FIG.
The attribute data "car" is paired. Note that “<product information>” which is not paired with attribute data is a tag indicating the beginning of one piece of program attribute information, and “<
/ Product information> ”is a tag indicating the end of one piece of program attribute information. Therefore, a set of tagged attribute data from “<product information>” to “</ product information>”
This is program attribute information corresponding to one product or CM.

The schema constructing section 14 constructs a database schema for the tag input from the information receiving section 13. The information on the constructed database schema is managed by the schema management unit 15. Here, the construction of the database schema means that one tag corresponding to one tag
Creating one attribute and determining the attribute type and length for that attribute. Note that the tag name is used as it is as the attribute name which is the name of the attribute. For example, when the attribute data paired with a tag is a character, “text” representing a character is assigned as the attribute type, and the attribute data paired with the tag is a numeral. In some cases, “int” representing a number is assigned as the attribute type.
The length of an attribute is, for example, when the attribute is a character,
It indicates how many characters can be recorded. The length of the attribute is indicated by a byte indicating the capacity of the attribute data.
When determining the type and length of an attribute, the schema constructing unit 14 refers to a pair of a tag and attribute data input to the information receiving unit 13 for each tag input from the information receiving unit 13 and determines the type and length. May be determined, or the type and length corresponding to the input tag may be stored in advance. When the schema construction unit 14 refers to the attribute data content when determining the type and length of the attribute, the information receiving unit 13 also outputs the attribute data to the schema construction unit 14.

FIG. 3 is a diagram showing an example of the database schema constructed by the schema construction section 14. As shown in FIG. 3, for example, when “<product category>” is input as a tag from the information receiving unit 13, the attribute name becomes “product category” which is the same as the tag name, and the tag “<product” Since the attribute data corresponding to “category>” is a character, the type of the attribute is “text”.
If the attribute type is "text" and the attribute length is determined to be 100 bytes, the attribute length is assigned 100 bytes.

The schema management unit 15 includes the schema construction unit 1
4 to collectively hold the database schemas corresponding to the individual tags, and output the held database schemas to the information storage unit 16.

FIG. 4 is a diagram showing an example of the database schema held by the schema management unit 15. As shown in FIG. 4, the schema management unit 15 includes the schema construction unit 1
4 holds the attribute names, types, and lengths of all the database schemas. The information storage unit 16 stores the attribute data input from the information receiving unit 13 and the database schema input from the schema management unit 15 in a database holding unit (not shown). And storage means (not shown) for storing The storage unit stores the attribute data input from the information receiving unit 13 in the data storage area of the attribute corresponding to the tag paired with the attribute data of the database schema input from the schema management unit 15 to store the data. Is stored in the database holding means. When the storage means stores the attribute data and the database schema, it stores each program attribute information in association with INDEX starting from 1.

FIG. 5 is a diagram showing an example of a database held by a database holding means (not shown) of the information storage section 16. As shown in FIG. As shown in FIG. 5, each program attribute information is stored in association with INDEX starting from 1. Further, as shown in the price column of the third row of INDEX, the program attribute information received by the information receiving unit 13 includes:
If no attribute data is tagged,
There is no corresponding attribute data in the column corresponding to the tag in the database held by the database holding means.

The synchronization information acquisition section 17 acquires synchronization information corresponding to the input INDEX by referring to the information storage section 16 based on the INDEX input from the information display section 19. Then, it outputs the synchronization information to the program reproducing unit 18. The program reproducing unit 18 receives an input of synchronization information from the synchronization information acquisition unit 17. Then, with reference to the program storage unit 12, a program corresponding to the synchronization information is extracted, reproduced, and output to the information display unit 19.

The information display unit 19 outputs INDEX to the synchronization information acquisition unit 17. Then, the program corresponding to the INDEX input from the program reproducing unit 18 and output to the synchronization information acquiring unit 17 is displayed on a monitor (not shown) together with the program attribute information corresponding to the INDEX extracted from the information storage unit 16. .

Next, the operation of the receiving device 10 and the receiving method will be described. FIG. 6 is a flowchart showing an operation from when the information receiving unit 13 receives the program attribute information to when the database is stored in a database holding unit (not shown) of the information storage unit 16.

First, in step S101, the information receiving unit 13 determines whether or not the receiving apparatus 10 has received tagged attribute data as program attribute information. Is determined. Then, when the tagged attribute data is included, the tag of the received program attribute information is output to the schema construction unit 14, the tagged attribute data is output to the information storage unit 16, and the process proceeds to step S102. move on. When the program attribute information has not been received, the determination in step S101 is repeated until the program attribute information is received.

In step S 102, the schema constructing section 14 constructs a database schema in one or a plurality of tags input from the information receiving section 13 with reference to the database schema held by the schema managing section 15. It is determined whether or not a tag that is not included is included. If it is included, step S10
3; if not included, step S104
Proceed to.

In step S103, the schema builder 14 selects one of the tags input from the information receiver 13
A database schema is constructed for tags for which the database schema is not constructed, and the schema management unit 1
5 is output. The schema management unit 15 adds the input database schema to the database schema held so far. Then, the newly constructed database schema is output to the information storage unit 16.

In step S104, the information storage unit 1
Reference numeral 6 stores the attribute data in the tagged attribute data input from the information receiving unit 13 in the data storage area of the attribute corresponding to the tag. When a new database schema is constructed in step S103, the storage unit (not shown) expands the database held by the database holding unit (not shown) by the new database schema, and then stores the attribute data.

FIG. 7 is a flowchart showing the operation of the information display unit 19 displaying the program attribute information of the database held in the information storage unit 16 and the program corresponding to the program attribute information on a monitor (not shown).

In step S201, the information display unit 1
9 defines i = 1. In step S202,
The information display unit 19 refers to a database holding unit (not shown) of the information storage unit 16 and determines whether there is program attribute information of INDEX = i. If there is, the information display unit 19 outputs INDEX = i to the synchronization information acquisition unit 17, and proceeds to step S203. I
When the program attribute information of NDEX = i does not exist, the process ends.

In step S203, the synchronization information acquiring unit 17 acquires the synchronization information of the program attribute information of INDEX = i input from the information display unit 19 by referring to a database holding unit (not shown) of the information storage unit 16. .
Then, the synchronization information acquired from the information storage unit 16 is output to the program reproduction unit 18.

In step S204, the program reproducing unit 1
Reference numeral 8 refers to the program storage unit 12 and extracts a program corresponding to the synchronization information input from the synchronization information acquisition unit 17. Then, the retrieved program is reproduced and output to the information display unit 19.

In step S205, the information display unit 1
9 retrieves the program attribute information of INDEX = i stored in a database storage unit (not shown) of the information storage unit 16 and outputs the program attribute information and the program input from the program reproduction unit 18 to a monitor (not shown). And
On the monitor, the program attribute information of INDEX = i and the reproduced program are displayed. The information display section 19 displays the program and the program attribute information corresponding to the program on a monitor (not shown) until the reproduced program ends.

In step S206, step S2
When the reproduction of the program at 05 ends, the information display unit 19
Increment i.

Next, the operation of the receiving apparatus 10 and the receiving method will be described using a specific example. In the following specific example, the viewer uses a receiving device 10 as a television receiver.
Thus, a case will be described in which “Drama 1” is viewed as a program, product information relating to the CM of the drama is accumulated in the receiving device 10, and a database relating to the CM is created.

The broadcast receiving unit (not shown) of the receiving device 10
A broadcast from a broadcast station is received by an antenna (not shown). In the broadcast, data is superimposed on a program composed of video and audio. The separating means (not shown)
The program and the data are separated, the received program is output to the program receiving unit 11, and the data is output to the information receiving unit 13.

The program receiving unit 11 receives the drama 1
M is output to the program storage unit 12. Then, the program storage unit 1
2 holds the CM. In the holding, the file name of the CM to be held is set to the synchronization information accompanying the CM, for example, “0001.CM”.

Next, a process for creating a database based on the program attribute information received by the information receiving unit 13 will be described. It is assumed that the program attribute information received by the information receiving unit 13 is as shown in FIG. The information receiving unit 13 receives program attribute information in which a plurality of tagged attribute data are collected, and outputs the program attribute information to the information storage unit 16 and the schema construction unit 14 (Step S101). yet,
If no database schema has been constructed, the schema construction unit 14 determines that a new tag has been input (step S102), and constructs a schema for all tags (step S103). In constructing the schema, the schema constructing unit 14 determines the type of the attribute corresponding to the tag by determining whether the attribute data corresponding to the tag is a number or a character. If the type is "text" in advance, 100 bytes
In e, when the type is “int”, it is assumed that 4 bytes are determined. Then, the schema construction unit 14 sequentially constructs a database schema corresponding to the program attribute information shown in FIG. 2 and outputs the constructed database schema to the schema management unit 15. Although there are a plurality of identical tags in the program attribute information shown in FIG. 2, the schema construction unit 14 constructs a schema only once for one type of tag.

The schema management unit 15 includes the schema construction unit 1
4 to hold the database schema sequentially input. Therefore, the database schema held by the schema management unit 15 is as shown in FIG. Then, the schema management unit 15 outputs the database schema to the information storage unit 16.

The information storage unit 16 receives the program attribute information in which the tag and the attribute data are paired from the information reception unit 13 and the database schema from the schema management unit 15 and uses them as a database. (Step S104). At this time, the information storage unit 16 stores the input program attribute information in association with INDEX starting from 1. The database held by the database holding means is shown in FIG. In this way, a database is created for the program attribute information in which the tag and the attribute data are paired.

Next, a process until the program attribute information recorded in the created database is displayed on the monitor together with the program stored in the program storage unit 12 will be described.
The information display unit 19 defines i = 1 (step S20).
1) It is determined whether or not program attribute information of INDEX = 1 exists in a database holding unit (not shown) of the information storage unit 16. The database shown in FIG.
Since there is program attribute information corresponding to INDEX = 1, the information display unit 19 outputs INDEX = 1 to the synchronization information acquisition unit 17 (Step S202). Then, the synchronization information acquisition unit 17 acquires “0001.CM” as synchronization information corresponding to INDEX = 1 with reference to a database holding unit (not shown). Then, "0001.
"CM" to the program reproducing unit 18 (step S20).
3).

The program reproducing unit 18 refers to the program storage unit 12, retrieves the program whose file name is "0001.CM", reproduces the program, and outputs it to the information display unit 19 (step S204). Then, the information display unit 19 extracts program attribute information corresponding to INDEX = 1 from a database holding unit (not shown), and extracts the information and a CM corresponding to the synchronization information “0001.CM” input from the program reproduction unit 18.
Is output to a monitor (not shown) (step S20).
5).

FIG. 8 is a view showing an example of the program attribute information on the CM of the car displayed on the monitor and the CM being reproduced. As shown in FIG. 8, the program attribute information extracted from the information storage unit 16 is displayed at the lower part of the monitor, and the CM is reproduced at the upper part of the monitor. As shown in FIG. 8, the program attribute information displayed on the monitor is not all the program attribute information stored in the information storage unit 16, but only the information related to the product selected from the information. There may be. Further, all the program attribute information may be sequentially displayed, and the display position of the program attribute information is not limited to the lower part of the monitor.

When the reproduction of the CM corresponding to the synchronization information "0001.CM" is completed, the information display unit 19
Is the same as INDEX = 1, and INDEX =
2 and the display of the program attribute information is executed (step S206, steps S202 to S2).
05), the reproduction of the CM and the display of the program attribute information are executed for all the program attribute information stored in the information storage unit 16.

Therefore, for example, when the program attribute information of INDEX = 4 or more is not stored in the database shown in FIG. 5, the reproduction of the CM of the credit card of INDEX = 3 and the display of the program attribute information are executed. After that, the process ends (step S202).

The database stored in the information storage section 16 may be configured to be displayed on a monitor at any time when the viewer desires. In this case, a command from the viewer to display the database is sent to the information display unit 19.
Is received, the information display unit 19 refers to the database holding means (not shown) of the information storage unit 16 to retrieve the database and display it on a monitor (not shown). By viewing this database, the contents of the programs stored in the program storage unit 12 can be known by the viewer.

As described above, according to the receiving apparatus 10 and the receiving method according to the first embodiment, program attribute information including one or more tagged attribute data is received, and the program attribute information is received from the program attribute information. Since the database can be created, the user of the receiving device 10 can view the program attribute information as a systematically organized catalog. Also, a program corresponding to each program attribute information, for example, a CM, and the program attribute information can be viewed simultaneously on the monitor.

Embodiment 2 Hereinafter, a receiving apparatus and a receiving method according to Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 9 is a block diagram showing a configuration of the receiving apparatus according to the second embodiment.

The receiving device 20 includes a program receiving unit 11, a program storage unit 12, an information storage unit 16, a synchronization information acquisition unit 17
, A program playback unit 18, an information display unit 19, an information reception unit 21, a schema management unit 22, a tag attribute correspondence information reception unit 23, and a tag attribute correspondence information storage unit 24. The program receiving unit 11, the program storage unit 12, the information storage unit 16, the synchronization information acquisition unit 17, the program reproduction unit 18, and the information display unit 19 are the same as those in the first embodiment. ,
Description is omitted.

[0062] The information receiving section 21 receives program attribute information including one or more attribute data tagged with a tag. Then, the tagged attribute data is stored in the information storage unit 1.
6 and outputs the tag to the schema management unit 22. Here, the tag indicates the attribute of the tagged attribute data, and the tag in the second embodiment may be the tag as described in the first embodiment, or It may be. In the following description, a case where the tag is a two-digit number will be described.

FIG. 10 is a diagram showing an example of the program attribute information input to the information receiving section 21. The example shown in FIG. 10 is program attribute information on a CM. Information receiving unit 21
As shown in the second line of FIG. 10, for example, as shown in the second line of FIG. 10, “<01>” as a tag and “car” as attribute data are paired. Note that “<product information>” which is not paired with the attribute data is a tag indicating the beginning of one piece of program attribute information, and “</ product information>” indicates the end of one piece of program attribute information. Tag. Therefore, a set of tagged attribute data from “<product information>” to “</ product information>” is program attribute information corresponding to one product or CM.

The schema management section 22 stores the tag input from the information reception section 21 into the tag attribute correspondence information storage section 2.
4, the database schema corresponding to the input tag is acquired. Then, the acquired database schema is held. Further, it outputs the held database schema to the information storage unit 16.

The tag-attribute-corresponding-information receiving unit 23 receives tag-attribute-corresponding information indicating the correspondence between tags and attributes constituting the database schema,
Output to Note that the tag attribute corresponding information receiving unit 23 may receive the tag attribute corresponding information from the data included in the broadcast. In addition to the broadcast, the tag attribute corresponding information may be received via a network, a communication line such as the Internet, or a floppy disk. (Registered Trademark) A disc, a CD-ROM, or a recording medium such as a ROM may be used. The tag attribute correspondence information storage unit 24 holds the tag attribute correspondence information input from the tag attribute correspondence information receiving unit 23.

FIG. 11 is a diagram showing an example of the tag attribute correspondence information stored in the tag attribute correspondence information storage unit 24. FIG.
As indicated by 1, a tag represented by a two-digit number corresponds to the attribute name, attribute type, and attribute length. Therefore, the schema management unit 22 sets the information receiving unit 2
The attribute name, type, and length corresponding to the tag input from No. 1 can be obtained by referring to the tag attribute correspondence information.

Next, the operation of the receiving device 20 and the receiving method will be described. FIG. 12 is a flowchart showing an operation from when the information receiving unit 21 receives the program attribute information to when the database is stored in the database holding unit (not shown) of the information storage unit 16. Step S110
Other processes are performed by the information receiving unit 13 according to the first embodiment.
The information receiving unit 21 is used, and the schema construction unit 14 and the schema management unit 15 are replaced by the schema management unit 22.
This is the same as Embodiment 1, and the description is omitted.

In step S 110, the schema management unit 22 selects one of the tags input from the information receiving unit 21
For a tag that does not hold the database schema, the database schema is acquired with reference to the tag attribute correspondence information held in the tag attribute correspondence information storage unit 24, and added to the database schema that has been held so far. Then, the newly acquired database schema is output to the information storage unit 16.

The operation in which the information display unit 19 displays the program attribute information of the database held in the information storage unit 16 and the program corresponding to the program attribute information on a monitor (not shown) is the same as that of the first embodiment. 7 is the same as the flowchart shown in FIG.

Next, the operation of the receiving device 20 and the receiving method will be described using a specific example. In the following specific example, the viewer uses a receiving device 20 as a television receiver.
Thus, a case will be described in which “drama 1” as a program is viewed, the program attribute information on the CM of the drama is accumulated in the receiving device 20, and a database on the CM is created.

The broadcast receiving unit (not shown) of the receiving device 20 includes:
A broadcast from a broadcast station is received by an antenna (not shown). In the broadcast, data is superimposed on a program composed of video and audio. The separating means (not shown)
The program and the data are separated from each other, the received program is output to the program receiving unit 11, the program attribute information including the tagged attribute data among the data is output to the information receiving unit 21, and the tag attribute corresponding information is output. The information is output to the tag attribute correspondence information receiving unit 23.

The program receiving unit 11 receives the drama 1
M is output to the program storage unit 12. Then, the program storage unit 1
2 holds the CM. In the holding, the file name of the CM to be held is set to the synchronization information accompanying the CM, for example, “0001.CM”.

The tag attribute correspondence information receiving unit 23 outputs the received tag attribute correspondence information to the tag attribute correspondence information storage unit 24, and the tag attribute correspondence information storage unit 24 holds the input tag attribute correspondence information. .

Next, a process for creating a database based on the program attribute information received by the information receiving unit 21 will be described.

It is assumed that the program attribute information received by the information receiving section 21 is as shown in FIG. Information receiving unit 2
1 receives program attribute information in which a plurality of tagged attribute data are collected, and outputs the program attribute information to the information storage unit 16 and the schema management unit 22 (step S10).
1). If no database schema has been acquired yet, the schema management unit 22 determines that a new tag has been input (step S102), and acquires schemas for all tags (step S110). In acquiring the schema, the schema management unit 22 acquires the attribute name, type, and length corresponding to the tag by referring to the tag attribute correspondence information stored in the tag attribute correspondence information storage unit 24. Then, the schema management unit 22
The database schema corresponding to the program attribute information shown in FIG. 10 is sequentially acquired, and the acquired database schema is held. The program attribute information shown in FIG. 10 includes a plurality of identical tags.
Will only get the schema once for one type of tag. Therefore, the database schema held by the schema management unit 22 is the same as that shown in FIG. 4 of the first embodiment. Then, the schema management unit 22
Outputs the database schema to the information storage unit 16.

The information storage unit 16 receives the program attribute information in which the tag and the attribute data are paired from the information reception unit 21 and the database schema from the schema management unit 22 and uses them as a database. Is stored in a not-shown database holding means. At this time, the information storage unit 16 stores the input program attribute information as 1
Are stored in association with INDEX starting with "." The database held by the database holding means is the first embodiment.
Is similar to that shown in FIG.

In this way, a database is created for the program attribute information in which the tag and the attribute data are paired.

The processing until the program attribute information recorded in the created database is displayed on the monitor together with the program stored in the program storage unit 12 is the same as that of the specific example of the first embodiment. Description is omitted.

As described above, according to the receiving apparatus 20 and the receiving method according to the second embodiment, the attribute name, type, and length corresponding to the tag can be obtained by referring to the tag attribute correspondence information. In addition to the same effects as those of the first embodiment, an effect that the attribute length and the like corresponding to the tag can be set more finely is also obtained.

The receiving apparatus 20 according to the second embodiment
Is capable of broadcasting tag attribute correspondence information indicating the correspondence between tags and attributes constituting a database schema.

The receiving apparatus 20 according to the second embodiment
Then, the information receiving unit 21 is assumed to receive, for example, the program attribute information shown in FIG. 10, but this is an example,
For example, the program attribute information shown in FIG. 2 may be received, and the tag name may be directly used as the attribute name. In this case, for example, the column of “tag” of the tag attribute correspondence information shown in FIG. 11 is unnecessary.

In the first and second embodiments, if only a database for the program attribute information received by the information receiving units 13 and 21 is to be created, the receiving device 10
20, a program receiving unit 11, a program storage unit 12, a synchronization information acquiring unit 17, a program reproducing unit 18, or an information displaying unit 19
May not be provided. In this case, the synchronization information may not be included in the program attribute information accepted by the information receiving units 13 and 21.

(Embodiment 3) Hereinafter, a receiving apparatus and a receiving method according to Embodiment 3 of the present invention will be described with reference to the drawings. FIG. 13 is a block diagram illustrating a configuration of a receiving device according to the third embodiment. Receiving device 30
Are a program receiving unit 11, a program storing unit 12, an information receiving unit 13, a schema constructing unit 14, a schema managing unit 15
, An information storage unit 16, a synchronization information acquisition unit 17, a program reproduction unit 18, an information display unit 31, a signal reception unit 32, and a display control unit 33. Note that the program receiving unit 11, the program storing unit 12, the information receiving unit 13, and the schema constructing unit 1
4, the schema management unit 15, the information storage unit 16, the synchronization information acquisition unit 17, and the program reproduction unit 18
The description is omitted.

The information display section 31 has the same functions as the information display section 19 in the first embodiment, and further, according to a switching command input from the display control section 33, the program attribute information and the program attribute information to be displayed on a monitor (not shown). And a function for switching between

The signal receiving section 32 receives an input of a switching signal from a viewer using a remote controller or the like, and outputs the switching signal to the display control section 33. Here, the switching signal is a signal for switching and displaying the program attribute information and the program displayed on the monitor (not shown) by the information display unit 31.

When the switching signal is input from the signal receiving unit 32, the display control unit 33 issues a switching command to the information display unit 31 to switch the display on the monitor according to the content of the switching signal.

Next, the operation of the receiving device 30 and the receiving method will be described. The operation from when the information receiving unit 13 receives the program attribute information to when the database is stored in the database holding unit (not shown) of the information storage unit 16 is the same as the flowchart shown in FIG. Is omitted.

FIG. 14 is a flowchart showing the operation of the information display unit 31 displaying the program attribute information of the database held in the information storage unit 16 and the program corresponding to the program attribute information on a monitor (not shown). Processing other than steps S210 to S214 is the same as that of the first embodiment.
Is the same as the flowchart shown in FIG. 7 of the first embodiment, except that the information display unit 19 is replaced by the information display unit 31.

In step S210, the information display unit 3
1 retrieves the program attribute information of INDEX = i stored in a database storage unit (not shown) of the information storage unit 16 and outputs the program attribute information and the program input from the program reproduction unit 18 to a monitor (not shown). And
On the monitor, the program attribute information of INDEX = i and the reproduced program are displayed.

In step S211, the information display unit 3
1 judges whether or not the program displayed on the monitor (not shown) has ended. Then, if the processing has been completed, the process proceeds to step S214. If the processing has not been completed, the process proceeds to step S212.

In step S212, the information display unit 3
1 judges whether there is an input of a switching command from the display control unit 33 or not. If there is an input of a switching command, the process proceeds to step S213, and if there is no input of a switching command, the process returns to step S210.

As described above, steps S210 to S2
By repeating the processing of step 12, when the information display unit 31 displays the program and the program attribute information on the monitor,
When the program to be displayed ends, the process proceeds to step S214,
When the switching command is input, the process proceeds to step S212.

In step S213, the information display unit 3
1 decrements i. In step S214, the information display unit 31 increments i.

Next, the operation of the receiving device 30 and the receiving method will be described using a specific example. In the following specific example, the viewer uses a receiving device 30 as a television receiver.
Thus, a case will be described in which “Drama 1” as a program is viewed, the program attribute information on the CM of the drama is accumulated in the receiving device 30, and a database on the CM is created.

A broadcast receiving unit (not shown) of the receiving device 30
A broadcast from a broadcast station is received by an antenna (not shown). In the broadcast, data is superimposed on a program composed of video and audio. The separating means (not shown)
The program and the data are separated, the received program is output to the program receiving unit 11, and the data is output to the information receiving unit 13.

[0096] The program receiving section 11 receives the C
M is output to the program storage unit 12. Then, the program storage unit 1
2 holds the CM. In the holding, the file name of the CM to be held is set to the synchronization information accompanying the CM, for example, “0001.CM”.

The process of creating a database based on the program attribute information received by the information receiving unit 13 is the same as that of the specific example of the first embodiment, and the description is omitted.

Next, a process until the program attribute information recorded in the created database is displayed on the monitor together with the program held by the program storage unit 12 will be described.
The information display unit 31 defines i = 1 (step S20).
1) It is determined whether or not program attribute information of INDEX = 1 exists in a database holding unit (not shown) of the information storage unit 16. The database shown in FIG.
Since there is program attribute information corresponding to INDEX = 1, the information display unit 31 outputs INDEX = 1 to the synchronization information acquisition unit 17 (Step S202). Then, the synchronization information acquisition unit 17 acquires “0001.CM” as synchronization information corresponding to INDEX = 1 with reference to a database holding unit (not shown). Then, "0001.
"CM" to the program reproducing unit 18 (step S20).
3).

The program reproducing section 18 refers to the program storage section 12, retrieves the program whose file name is "0001.CM", reproduces the program, and outputs it to the information display section 31 (step S204). Then, the information display unit 31 extracts the program attribute information corresponding to INDEX = 1 from a database holding unit (not shown), and corresponds to the program attribute information and the synchronization information “0001.CM” input from the program reproduction unit 18. The CM is output to a monitor (not shown) (step S210). Then, as shown in FIG. 8, the program attribute information extracted from the information storage unit 16 is displayed on the lower part of the monitor, and the CM is reproduced on the upper part of the monitor.

When the reproduction of the CM corresponding to the synchronization information "0001.CM" is completed, the information display section 31 displays the CM.
It is detected that the reproduction of is completed (step S211),
Assuming that INDEX = 2 (step S214), INDEX
As in the case of X = 1, the reproduction of the CM corresponding to INDEX = 2 and the display of the program attribute information are executed (steps S202 to S204 and step S21).
0).

Next, a description will be given of a case where a viewer transmits a switching signal to the signal receiving unit 32 by using a remote controller while reproducing a CM corresponding to INDEX = 2 and displaying program attribute information. I do.

When the information display section 31 is executing CM playback corresponding to INDEX = 2 and displaying program attribute information, when the viewer transmits a switching signal to the signal receiving section 32 by a remote controller, the signal Receiving section 32 receives the switching signal and outputs the switching signal to display control section 33. When receiving the switching signal from the signal receiving unit 32, the display control unit 33 outputs a switching command to the information display unit 31. When the information display unit 31 detects the input of the switching command (step S212), the INDEX = 2
Playback of the CM corresponding to, and display of the program attribute information are terminated in the middle, INDEX is decremented, and INDEX =
1 (step S213), and the reproduction of the CM corresponding to INDEX = 1 and the display of the program attribute information are started (steps S202 to S204 and step S21).
0).

In this way, the viewer can select the previous CM
And the program attribute information corresponding to the CM. In this description, i is decremented in step S213. However, i may be incremented, or it may be determined whether to increment or decrement i according to the content of the switching instruction. It may be. By doing this,
Audience is more detailed about the CM you want to watch and the CM
And the program attribute information corresponding to.

As described above, according to the receiving apparatus 30 and the receiving method according to the third embodiment, the program displayed on the information display section 31 and the program attribute information can be switched even during the reproduction of the program. With this configuration, in addition to the same effect as in the first embodiment, the viewer can not only watch the program displayed on the monitor (not shown) by the information display unit 31, but also actively watch the program and program attribute information. The effect that can be selected is also obtained.

In the third embodiment, the information display unit 3
1 is configured to be able to switch between programs to be sequentially displayed and program attribute information on the way, but this is an example,
For example, the information display unit 31 first displays a database held by the information storage unit 16 on a monitor, selects a program that the viewer wants to view and program attribute information from the database, and sets the information display unit 31 to: The program selected by the viewer and the program attribute information may be displayed on the monitor.

FIG. 15 is a flow chart showing the operation of the information display unit 31 displaying the program attribute information of the database held in the information storage unit 16 and the program corresponding to the program attribute information on a monitor (not shown).

At step S301, the information display unit 3
1 acquires a database held by a database holding unit (not shown) of the information storage unit 16 and displays the database on a monitor (not shown). Then, the viewer is requested to select any one of the programs displayed.

FIG. 16 is a diagram showing an example of a database displayed on the monitor by the information display section 31. As shown in FIG. As shown in FIG. 16, the database displayed on the monitor is
Even if not all of the databases stored in the information storage unit 16, at least the INDEX and the program name (product name in this example) may be displayed.

At step S302, the information display unit 3
1 determines whether or not a switching signal is input from the display control unit 33, and continues the determination until a switching signal is input. Then, if there is an input of a switching signal and a number, the input number is output to the synchronization information acquisition unit 17.

In step S303, the synchronization information acquiring unit 17 acquires synchronization information corresponding to the number INDEX input from the information display unit 31 by referring to a database holding unit (not shown) of the information storage unit 16. Then, the synchronization information acquired from the information storage unit 16 is output to the program reproduction unit 18.

At step S304, the program reproducing unit 1
Reference numeral 8 refers to the program storage unit 12 and extracts a program corresponding to the synchronization information input from the synchronization information acquisition unit 17. Then, the retrieved program is reproduced and output to the information display unit 31.

At step S305, the information display unit 3
1 is an INDEX corresponding to a number input from the display control unit 33 from a database held by the information storage unit 16.
And outputs the program attribute information and the program input from the program reproducing unit 18 to a monitor (not shown). And on the monitor, the played program,
The program attribute information corresponding to the program is displayed. When the reproduced program ends, the information display unit 31 ends the display of the program.

Next, a specific example in which a program and program attribute information are displayed according to the flowchart shown in FIG. 15 will be described. The viewer who sees the display shown in FIG. 16 receives the program number he / she wants to view, for example, “1”.
Is transmitted to the signal receiving unit 32 by a remote controller or the like (not shown) together with the switching signal. Then, the signal receiving unit 32
It receives the switching signal and the number “1” and outputs them to the display control unit 33. The display control unit 33 outputs the input number “1” and the switching command to the information display unit 31. Then, the information display unit 31 determines that the viewer has made a selection, and outputs the input number “1” to the synchronization information acquisition unit 17 (step S302). Synchronization information acquisition unit 17
Acquires the synchronization information “0001.CM” of INDEX = 1 and outputs it to the program playback unit 18 (step S30).
3). The program reproducing unit 18 retrieves the program corresponding to the synchronization information “0001.CM” of INDEX = 1 from the program storage unit 12, reproduces the program, and outputs the program to the information display unit 31 (step S304). The information display section 31 indicates that INDEX = 1
Is retrieved from the information storage unit 16 and displayed on a monitor (not shown) together with the input program (step S305). In this way, the viewer can view the desired program and the program attribute information.

As described above, by displaying the program and the program attribute information according to the flowchart shown in FIG. 15, the viewer can more easily view the target program.

The method of indicating program information and selecting a program from the program information and the method of changing the programs to be displayed during the sequential display of the programs described in the third embodiment are changed one by one. A combination of methods that can be used may allow the viewer to select a program to be viewed and program attribute information.

In the selection of a program in step S302 of the flowchart shown in FIG. 15, a program may be selected using a touch panel.
Alternatively, the program to be selected may be focused on the monitor, and the focus may be changed by the viewer using the arrow buttons on the remote control, and finally, the program may be selected by pressing the enter button.

In the third embodiment, the first embodiment is used.
Is configured to include the signal receiving unit 32 and the display control unit 33, but the receiving device 20 according to the second embodiment is configured to include the signal receiving unit 32 and the display control unit 33. The same effect can be obtained.

In the first to third embodiments, the program attribute information received by the information receiving units 13 and 21 includes an information identifier, which is included for later description. However, with respect to the receiving apparatuses 10, 20, and 30 in the first to third embodiments, the information identifiers may not be included in the program attribute information received by the information receiving units 13 and 21. However, in the receiving device 30 according to the third embodiment, the CM displayed on the monitor
For example, a configuration may be adopted in which a CM or the like is identified by using an information identifier when selecting, for example.

Embodiment 4 Hereinafter, a receiving apparatus and a receiving method according to Embodiment 4 of the present invention will be described with reference to the drawings. FIG. 17 is a block diagram showing a configuration of a receiving apparatus according to the fourth embodiment. Receiving device 40
Are a program receiving unit 11, a program storage unit 12, a schema construction unit 14, a schema management unit 15, and an information storage unit 16.
Synchronization information acquisition unit 17, program reproduction unit 18, information reception unit 41, information display unit 42, and detailed information acquisition unit 43.
And a detailed information storage unit 44. The program receiving unit 11, the program storage unit 12, the schema construction unit 14, the schema management unit 15, the information storage unit 16, the synchronization information acquisition unit 17, and the program reproduction unit 18 are the same as those in the first embodiment. The description is omitted.

Information receiving section 41 has the same function as information receiving section 13 in the first embodiment, and further has a function of receiving acquired information and outputting the received acquired information to detailed information acquiring section 43. Things. Here, the obtained information is information for the detailed information obtaining unit 43 to obtain the program detailed information corresponding to the program attribute information received by the information receiving unit 41. The acquired information includes the detailed information acquiring unit 43
Includes information for specifying program detailed information such as a URL for acquiring program detailed information, a key for searching for a product or the like, or a file name, and an information identifier.
The program detailed information is more detailed information related to the program attribute information received by the information receiving unit 41. The information identifier is an identifier for identifying each program attribute information received by the information receiving unit 41, for example, program attribute information for each product.

The information display section 42 has the same function as the information storage section 16 in the first embodiment, and further has a function of displaying the detailed program information held in the detailed information storage section 44 on a monitor (not shown). It is.

When the obtained information is input from the information receiving unit 41, the detailed information obtaining unit 43 obtains the program detailed information indicated by the obtained information. Then, the detailed program information and the information identifier input from the information receiving unit 41 are output to the detailed information storage unit 44.

[0123] The detailed information accumulating section 44 includes the detailed information acquiring section 4
3 and the program detailed information are held as a pair.

Next, the operation of the receiving device 40 and the receiving method will be described. Note that the operation from when the information receiving unit 41 receives the program attribute information to when the database is stored in the information storage unit 16 is performed in a case where the information receiving unit 41 receives the program attribute information in step S101. Except for outputting to the detailed information acquisition unit 43, the process is the same as the flowchart shown in FIG.

FIG. 18 is a flowchart showing a process in which the detailed information obtaining unit 43 obtains and stores program detailed information after receiving the obtained information. In step S401, the detailed information acquisition unit 43 acquires program detailed information according to information for specifying program detailed information included in the acquired information. For example, when the information for specifying the program detailed information is a URL, the URL is transmitted via a communication line.
The user accesses the RL and downloads detailed program information.

In step S402, the detailed information acquisition unit 43 outputs the detailed program information acquired in step S401 and the information identifier input from the information reception unit 41 to the detailed information storage unit. The detailed information storage unit 44 stores the input information identifier and the detailed program information as a pair. The detailed program information corresponding to the information identifier input from the information receiving unit 41 is already stored in the detailed information storage unit 44.
, The newly obtained program detailed information is overwritten and stored.

FIG. 19 shows an operation in which the information display unit 42 displays the program attribute information of the database held in the information storage unit 16 on a monitor (not shown), the program corresponding to the program attribute information, and the detailed program information. It is a flowchart shown. The processing other than step S220 is the same as the flowchart shown in FIG. 7 of the first embodiment, except that the information display unit 19 according to the first embodiment is replaced by the information display unit 42, and the description is omitted.

At step S220, information display unit 4
2 acquires the information identifier corresponding to INDEX = i by referring to the information storage unit 16 and refers to the detailed information storage unit 44 to store the program detailed information corresponding to the information identifier acquired from the information storage unit 16. The data is read out and displayed on a monitor (not shown). Then, when the display of the program detailed information is finished, or when the program detailed information is a still image, the program detailed information is displayed, and after a certain time has elapsed, the process proceeds to step S206. When displaying the detailed program information, the detailed program information may be displayed together with the program attribute information displayed in step S205.

Next, the operation of the receiving apparatus 40 and the receiving method will be described using a specific example. In the following specific example, the viewer uses a receiving device 40 as a television receiver.
Thus, a case will be described in which “drama 1” is viewed as a program, program attribute information on the CM of the drama is accumulated in the receiving device 40, and a database on the CM is created.

[0130] A broadcast receiving unit (not shown) of the receiving apparatus 40 includes:
A broadcast from a broadcast station is received by an antenna (not shown). In the broadcast, data is superimposed on a program composed of video and audio. The separating means (not shown)
The program and the data are separated, and the received program is output to the program receiving unit 11, and the data is output to the information receiving unit 41.

[0131] The program receiving unit 11 sets the C
M is output to the program storage unit 12. Then, the program storage unit 1
2 holds the CM. In the holding, the file name of the CM to be held is set to the synchronization information accompanying the CM, for example, “0001.CM”.

The process for creating a database based on the program attribute information received by the information receiving unit 41 is the same as that of the specific example of the first embodiment, and the description is omitted.

Next, a process until the program attribute information recorded in the created database is displayed on the monitor together with the program held in the program storage unit 12 will be described.
The information display unit 42 is the same as the specific example of Embodiment 1 except for the process of displaying the detailed program information, and a description thereof will be omitted.

C corresponding to synchronization information "0001.CM"
When the reproduction of M is completed, the information display unit 42 displays the INDEX
The information identifier “005” corresponding to “= 1” is stored in the information storage unit 16.
To get from. Then, by referring to the detailed information storage unit 44, the program detailed information corresponding to the information identifier "005" is read, and the program detailed information and the program attribute information are displayed on a monitor (not shown) (step S220).

FIG. 20 is a diagram showing an example of the detailed program information displayed on a monitor (not shown).

As shown in FIG. 20, as detailed program information corresponding to “Family Car 1”, detailed specifications of “Family Car 1” and “Family Car 1” as in the case where the program is displayed are displayed. Is displayed. In the example shown in FIG. 20, since the program detailed information is a still image, the information display unit 42 displays the program detailed information on the monitor for a certain period of time, for example, one minute, and ends the display of the program detailed information.

As described above, according to the receiving apparatus 40 and the receiving method of the fourth embodiment, the viewer can
By being able to view not only the program attribute information but also the program detailed information, in addition to the same effect as in the first embodiment, the viewer can easily obtain detailed information related to the program and the program attribute information. This makes it possible to avoid the trouble of obtaining detailed information by requesting a catalog or the like.

In the fourth embodiment, the detailed information obtaining unit 43 obtains the program detailed information every time the obtained information is received from the information receiving unit 41. However, this is only an example, The program detailed information may be acquired only when is updated.

FIG. 21 is a flowchart showing a process in which the detailed information obtaining section 43 receives the obtained information from the information receiving section 41, and obtains and stores the program detailed information only when the program detailed information is updated. Step S41
0 and S411 are the same as those in FIG.
8 is the same as the process shown in FIG. Further, the detailed information acquisition unit 43 in the following description receives an update flag together with an acquisition command from the information reception unit 41.

[0140] In step S410, the detailed information acquiring unit 43 adds the acquired information input from the information receiving unit 41 to the acquired information.
It is determined whether an update flag is set. If the update flag is set, the process proceeds to step S401. If the update flag is not set, the process proceeds to step S411.

In step S411, the detailed information obtaining unit 43 determines whether or not the detailed information corresponding to the information identifier included in the obtained information is stored in the detailed information storage unit 44. If not stored, the process proceeds to step S401, and if stored, the process ends.

As described above, when the program provider updates the program detailed information, the update flag is added to the acquisition information included in the data superimposed on the broadcast, so that the program detailed information is updated. Only, detailed information acquisition unit 4
3 obtains the program detailed information, and it is possible to avoid obtaining the same program detailed information many times. Further, even when the update flag is not attached, the detailed information acquisition unit 43 checks whether or not the program detailed information corresponding to the information identifier included in the acquired information input to the detailed information storage unit 44 is stored. Therefore, when the program detailed information is obtained for the first time, the program detailed information is obtained even if the obtained information does not have an update flag.

The receiving apparatus 40 according to the fourth embodiment
Is capable of broadcasting acquired information for acquiring detailed program information. Also, the transmitting device
When the detailed program information is updated, the update flag may be transmitted together with the obtained information.

The acquired information transmitted from the program provider to the receiving device 40 may be transmitted at the same time as the broadcast of the program, or may be transmitted once every several programs or for a certain period of time. For example, once a week or once a month, the program may be transmitted simultaneously with the program or separately from the program.

In the fourth embodiment, the first embodiment is used.
Has a configuration in which a detailed information acquisition unit 43 and a detailed information storage unit 44 are provided in the receiving apparatus 10 according to the second embodiment.
Or the receiving device 30 according to the third embodiment may be provided with a detailed information acquisition unit 43 and a detailed information storage unit 44, and similar effects can be obtained.

Embodiment 5 Hereinafter, a receiving apparatus and a receiving method according to Embodiment 5 of the present invention will be described with reference to the drawings. FIG. 22 is a block diagram showing a configuration of a receiving apparatus according to the fifth embodiment. Receiving device 50
Are a program receiving unit 11, a program storing unit 12, an information receiving unit 13, a schema constructing unit 14, a schema managing unit 15
, An information storage unit 16, a synchronization information acquisition unit 17, a program reproduction unit 18, an information display unit 42, and a detailed information storage unit 44.
, A command input unit 51, a program information storage unit 52, a program table display unit 53, a program identifier acquisition unit 54, and a detailed information acquisition unit 55. Note that the program receiving unit 11, the program storing unit 12, the information receiving unit 13, the schema constructing unit 14,
The schema management unit 15, the information storage unit 16, the synchronization information acquisition unit 17, and the program reproduction unit 18 are the same as those in the first embodiment, and include an information display unit 42, a detailed information storage unit 44 Is the same as in the fourth embodiment, and the description is omitted.

The command input unit 51 receives a signal input from a viewer by a remote controller or the like. If the input signal is
If the signal is a signal for changing the focus of the EPG, the signal is output to the program guide display unit 53. If the input signal is a decision signal to select the program focused on the EPG, the decision signal is output to the program identifier acquisition unit 54.

The program information storage section 52 acquires program information by broadcasting and holds it. Here, the program information is information necessary for creating an EPG to be displayed on the program guide display unit 53. The program information storage unit 52 may download the program information via the Internet or a network other than the broadcast, or may receive the program information via a recording medium.

FIG. 23 is a diagram showing an example of the program information stored in the program information storage section 52. As shown in FIG. As shown in FIG. 23, the program information stored in the program information storage unit 52 stores a program name, a channel, a start time, and a broadcast time necessary for creating an EPG in the program guide display unit 53. . Also stored are a program identifier for specifying a program, an information identifier corresponding to a CM in the program, and a URL as information for obtaining detailed program information of the CM.

The program table display section 53 is provided with a program information storage section 52.
, Information necessary for creating an EPG, that is, a program name, a program identifier, a channel, a start time, and a broadcast time are obtained, and the EPG is created using them.
Then, the created EPG is displayed on a monitor (not shown).

FIG. 24 is a diagram showing an example of the EPG.
By looking at the EPG shown in FIG.
You can know the program time, channel, and program name. Further, the viewer can focus on one program name arbitrarily selected from among the program names displayed on the EPG. In the example shown in FIG. 24, “drama 1” is focused.

The program identifier acquiring unit 54 is provided with a command input unit 51
When a decision signal is input from the
, The program identifier of the program focused at that time is acquired, and the acquired program identifier is output to the detailed information acquisition unit 55.

[0153] The detailed information acquisition unit 55 is
2, the information identifier corresponding to the program identifier input from the program identifier acquiring unit 54 and the information for specifying the program detailed information corresponding to the information identifier are acquired. The information held by the program information storage unit 52 is shown in FIG.
In the case where the information is indicated by, the information for specifying the detailed program information is a URL.

Next, the operation of the receiving device 50 and the receiving method will be described. The operation from when the information receiving unit 13 receives the program attribute information to when the database is stored in the database holding unit (not shown) of the information storage unit 16 is the same as the flowchart shown in FIG. 6 of the first embodiment. The description is omitted.

The operation in which the information display unit 42 displays the program attribute information of the database held in the information storage unit 16 on a monitor (not shown), the program corresponding to the program attribute information, and the detailed program information is implemented. This is the same as the flowchart shown in FIG. 19 of the fourth embodiment, and a description thereof will not be repeated.

FIG. 25 is a flow chart showing the operation for obtaining the detailed program information. In step S501, the program identifier obtaining unit 54 determines whether or not a decision signal has been input from the command input unit 51. If there is an input, the process proceeds to step S502. If there is no input, the process of step S501 is repeated until there is an input.

In step S502, the program identifier obtaining section 54 obtains the program identifier of the currently focused program name from the program guide display section 53. Then, the acquired program identifier is output to the detailed information acquisition unit 55.

In step S 503, the detailed information acquisition unit 55 refers to the program information storage unit 52, and refers to the information identifier corresponding to the program identifier input from the program identifier acquisition unit 54 and the information for specifying the program detailed information. And get. Then, program detail information is acquired based on the information for specifying the program detail information, and the information identifier and the program detail information are paired and output to the detail information storage unit 44.

In step S 504, the pair of the information identifier input from the detailed information acquisition unit 55 and the detailed program information is stored in the detailed information storage unit 44.

Next, the operation of the receiving device 50 and the receiving method will be described using a specific example. In the following specific example, the viewer uses a receiving device 50 as a television receiver.
Thus, a case will be described in which “drama 1” is viewed as a program, the program attribute information on the CM of the drama is stored in the receiving device 50, and a database on the CM is created.

A broadcast receiving unit (not shown) of the receiving device 50
A broadcast from a broadcast station is received by an antenna (not shown). In the broadcast, data is superimposed on a program composed of video and audio. The separating means (not shown)
The program and the data are separated, the received program is output to the program receiving unit 11, and the data is output to the information receiving unit 13.

[0162] The program receiving unit 11 receives the C
M is output to the program storage unit 12. Then, the program storage unit 1
2 holds the CM. In the holding, the file name of the CM to be held is set to the synchronization information accompanying the CM, for example, “0001.CM”.

The process for creating a database based on the program attribute information received by the information receiving unit 13 is the same as that of the specific example of the first embodiment, and a description thereof will not be repeated.

Next, a description will be given of a process from when the detailed information obtaining section 55 obtains the detailed program information to when the detailed program information is stored in the detailed information storage section 44.

First, the information shown in FIG. 23 is stored in the program information storage section 52, and the program table display section 53
It is assumed that the EPG shown in FIG. 24 is displayed on a monitor (not shown).

FIG. 26 is a diagram showing an example of a remote controller used by a viewer. The remote control 60 shown in FIG.
Arrow buttons 61, 62, 6 that can indicate up, down, left, and right
3 and 64 and a decision button 65. When the arrow buttons 61, 62, 63, and 64 are pressed, a signal to move the focus of the EPG in the direction of the arrow is transmitted to the command input unit 51. When the enter button 65 is pressed,
The decision signal is transmitted to the command input unit 51.

When the viewer presses the arrow button 6 on the remote control 60,
EPG shown in FIG. 24 using 1, 62, 63, 64
Focus on "Drama 1" and the remote control 60
Is pressed. Then, a decision signal is transmitted to the command input unit 51. When receiving the decision signal, the command input unit 51 transmits the decision signal to the program identifier acquiring unit 5.
4 (step S501).

Then, the program identifier acquiring section 54 outputs the program identifier corresponding to the program name focused at that time, that is, the program identifier “01” from the program table display section 53.
01 ". Then, the acquired program identifier “01”
01 ”is output to the detailed information acquisition unit 55 (Step S
502).

[0169] The detailed information acquisition unit 55 outputs the program identifier "01".
01 ”, the program information storage unit 52 is referred to, and the information identifier corresponding to the program identifier“ 0101 ”and the URL
And get. That is, the detailed information acquisition unit 55 outputs the information identifiers “005”, “006”, and “007” and the URLs “URL1”, “URL” corresponding to the information identifiers.
2 ”and“ URL3 ”. Then, each URL is accessed to acquire the detailed program information, and the acquired detailed program information is output to the detailed information storage unit 44 in pairs with the information identifiers (step S50).
3). Then, a pair of the information identifier and the detailed program information is
It is stored in the detailed information storage unit 44 (step S50)
4).

The process of displaying the program attribute information recorded in the created database together with the program held by the program storage unit 12 on the monitor is described in the fourth embodiment.
And the description is omitted.

As described above, according to the receiving apparatus 50 and the receiving method according to the fifth embodiment, it is possible to select a program using the EPG and obtain detailed program information corresponding to the selected program. By being able to view the program detailed information together with the program and the program attribute information, in addition to the same effect as in the first embodiment, it is possible to easily obtain detailed information related to the program and the program attribute information, further,
Since the program can be selected using the EPG, an effect that the viewer can easily select a program for which detailed information is desired can be obtained.

Although the EPG shown in FIG. 24 allows the user to see only a part of the program guide, the screen can be scrolled to provide a larger range, for example,
The EPG may be able to be viewed even in the past.

Also, in the fifth embodiment, the program detailed information of the CM broadcasted in the program selected by the EPG is obtained. However, this is an example, and for example, the program detailed information of the program itself is obtained. You may be able to do it. In this case, the information identifier can be used as it is as the program identifier. Examples of a program for obtaining detailed program information of the program itself include news, drama, movie, and television shopping. In the case of news, the EPG should list the main news items,
When the viewer selects one of the displayed items, detailed news corresponding to the selected item may be obtained as detailed program information. In the case of a drama or movie, information on clothes or accessories worn by the actor in the drama or movie may be used as the program detail information. Also, in the case of television shopping, a list of products that can be purchased by television shopping is displayed on the EPG as in the case of news, and when the viewer selects one of them, more detailed information on the product is displayed. May be obtained.

In the fifth embodiment, the information stored in the program information storage section 52 includes “program start time”,
Although “broadcast time (minutes)” is used, this is an example, and “program start time” and “program end time” may be used.

In the fifth embodiment, the first embodiment is used.
In the receiving device 10 in the above, a detailed information storage unit 44, a command input unit 51, a program information storage unit 52, a program table display unit 5
3, the program identifier acquisition unit 54, and the detailed information acquisition unit 55, but the receiving device 20 in the second embodiment or the receiving device 30 in the third embodiment
Alternatively, a configuration may be provided that includes a detailed information storage unit 44, a command input unit 51, a program information storage unit 52, a program table display unit 53, a program identifier acquisition unit 54, and a detailed information acquisition unit 55. The effect of can be obtained.

In Embodiments 4 and 5, the detailed program information is displayed after the program and the program attribute information are displayed. However, this is merely an example. The program may be divided so that the program is displayed on the right and the detailed program information is displayed on the left. Further, if desired by the viewer, the program attribute information in the database held by the information storage unit 16 is displayed. The information may be displayed on the monitor, and only the program detailed information corresponding to the program attribute information selected by the viewer may be displayed on the monitor.

In the first to fifth embodiments, the synchronization information is the file name of the program stored in the program storage unit 12. However, this is only an example. Any file may be used as long as it can specify the program, such as a pointer indicating the beginning of the program file stored in the unit 12.

In the first to fifth embodiments, when the program and the program attribute information are displayed on the monitor, they may be displayed sequentially as described in the first embodiment. As described in the above, it may be possible to select from the table of the database. Further, on the search screen, any one of the program attribute information may be searched from the database and displayed.

Further, in the first to fifth embodiments, the program attribute information received by the information receiving units 13, 21, 41 is shown in FIG. 2 or FIG. 10, but this is an example. For example, tags other than those shown in FIGS. 2 and 10 may be used, such as those indicating the expiration date of the program attribute information. Further, “<product information>” is used as a tag indicating the start of one piece of program attribute information, and a tag indicating the end of the program attribute information is
Instead of using “</ product information>”, for example, “<product category>” is defined as a tag indicating the beginning of program attribute information, and “<information identifier>” is used as a program. Define a tag indicating the end of attribute information,
It is not necessary to use “<product information>” or the like.

In the first to fifth embodiments, only the case of “text” and “int” has been described as attribute types. However, other attribute types may be considered. For example, a still image, a moving image, a sound, or the like may be used as the attribute type. At this time, the still image is in the BMP format, and the audio is in the WAV format.
A format or the like may be used.

Further, in Embodiments 1 to 5, the information receiving units 13, 21, and 41 are not limited to the program attribute information having at least one attribute data tagged with a tag.
Information indicating the configuration of data may be received. An example of information indicating the data configuration is “<! ELEMENT product category; product name; provider; price (yen); broadcast program; synchronization information; information identifier>”. This example is shown in FIG.
This corresponds to the program attribute information indicated by. Information indicating the configuration of such data is transmitted to the information receiving units 13 and 2.
By receiving the information in advance, the data structure can be known before receiving the program attribute information as shown in FIG. Note that the schema construction unit 14 may construct a schema using information indicating the data configuration. Further, the information indicating the data configuration may be added to the beginning of the program attribute information, or may be transmitted to the receiving device separately from the program attribute information.

The receiving apparatuses according to the first to fifth embodiments may select the contents of a database. For example, if the viewer has a tag "<product category>"
Is set so that the database schema is constructed only with respect to the program attribute information corresponding to "car", the schema constructing unit 14 allows the information receiving units 13, 21,
With reference to the program attribute information input from 41, the database schema may be constructed only for the program attribute information whose attribute data corresponding to “<product category>” is “car”. If the viewer sets in advance a database only for the program attribute information of which the attribute data corresponding to the tag “<product category>” is “car”, the storage means (not shown) of the information storage unit 16 When storing the attribute data in the database holding means (not shown), the program attribute information may be stored only for the program attribute information of which the attribute data corresponding to “<product category>” is “car”. Alternatively, the viewer may use the schema construction unit 14
May be used to select program attribute information for which a database schema is not constructed, or program attribute information not to be stored in the database holding means in the information storage unit 16.

In the first to fifth embodiments, the program is stored in the program storage unit 12 not only when the viewer watches the program. For example, the viewer may designate a program in advance and the program may be stored, or the receiving device may automatically store the program.

Further, in the first to fifth embodiments, in the description of the specific examples, the receiving device is a television receiver. However, this is an example, and the receiving device is a set-top box. A personal computer or a workstation may be used as long as it can receive the data.

Also, the programs stored in the program storage unit 12 according to the first to fifth embodiments are not limited to CMs.
It goes without saying that any program such as news, drama, sports program, movie, or television shopping may be used.

The broadcast program in the first to fifth embodiments may be transmitted to a receiving device by analog or digital broadcast waves, or is broadcast via a communication line such as the Internet. Or broadcast by data communication or the like.

A recording medium storing a program for realizing the receiving method according to the first to fifth embodiments is supplied to a system or an apparatus, and a main processing unit such as a CPU of the system or the apparatus stores the program in the recording medium. By reading and executing the stored program, the same effects as those described in the above embodiments can be obtained.

As a recording medium for recording a program, for example, a floppy disk, a hard disk,
Optical disk, magnetic disk, magneto-optical disk, CD-R
An OM, a DVD-RAM, a magnetic tape, a punch card, a nonvolatile memory card, a ROM, or the like can be used.

[0189]

As apparent from the above description, according to the receiving apparatus and the receiving method of the present invention, program attribute information in which a tag and attribute data are paired is received, and the program attribute information is obtained from the program attribute information. Since the database can be created, the user of the receiving device can view the program attribute information as a systematically organized catalog. Also, a program corresponding to each program attribute information and its program attribute information, for example, C
M can be watched simultaneously on the monitor.

Further, by obtaining the attribute name, type, and length corresponding to the tag from the tag attribute corresponding information, it is possible to obtain an effect that the length of the attribute corresponding to the tag can be set more finely. .

[0191] Further, by adopting a structure in which the program displayed on the information display unit and the program attribute information can be switched even during the reproduction of the program, the viewer can display the program displayed on the monitor (not shown) by the information display unit. In addition to simply watching the program, it is possible to obtain an effect that a program and program attribute information to be actively watched can be selected. Further, by selecting a program to be viewed from the database, it is possible to easily select a program that the viewer wants to view.

Also, since the viewer can not only view the program and the program attribute information but also view the detailed program information corresponding to the program and the program attribute information, the viewer can view the detailed information related to the program and the program attribute information. It can be easily obtained, and it is possible to avoid the trouble of obtaining detailed information by requesting a catalog or the like. Further, by using the update flag, it is possible to obtain the program detailed information only when the program detailed information is updated, so that it is possible to avoid acquiring the same program detailed information many times. .

Further, it is assumed that a program can be selected using the EPG, and that the program detailed information corresponding to the selected program can be obtained. Detailed information related to the attribute information can be easily obtained.
Can be used to select a program, so that the viewer can easily select a program for which detailed information is desired.

Further, according to the transmitting apparatus of the present invention, by constructing the database schema in the receiving apparatus by transmitting the tag attribute correspondence information indicating the correspondence between the tags and the attributes constituting the database schema, the program provider can finely construct the database schema. The effect that can be set is obtained.

By transmitting the acquired information for identifying the updated detailed program information, the program provider can make the receiving apparatus acquire the detailed program information only when the detailed program information is updated. The effect that can be controlled is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a receiving device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of program attribute information received by an information receiving unit.

FIG. 3 is a diagram illustrating an example of a database schema constructed by a schema construction unit;

FIG. 4 is a diagram illustrating an example of a database schema held by a schema management unit;

FIG. 5 is a diagram illustrating an example of a database stored in an information storage unit.

FIG. 6 is a flowchart showing the operation of the receiving device according to the first embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the receiving device according to the first embodiment of the present invention.

FIG. 8 is a diagram showing an example of program attribute information on a CM of a car and a CM being reproduced.

FIG. 9 is a block diagram showing a configuration of a receiving apparatus according to a second embodiment of the present invention.

FIG. 10 is a diagram showing an example of program attribute information received by an information receiving unit.

FIG. 11 is a diagram showing an example of tag attribute correspondence information stored in a tag attribute correspondence information storage unit.

FIG. 12 is a flowchart showing the operation of the receiving apparatus according to the second embodiment of the present invention.

FIG. 13 is a block diagram showing a configuration of a receiving device according to a third embodiment of the present invention.

FIG. 14 is a flowchart showing the operation of the receiving device according to the third embodiment of the present invention.

FIG. 15 is a flowchart showing the operation of the receiving apparatus according to the third embodiment of the present invention.

FIG. 16 is a diagram showing an example of a database displayed on a monitor by an information display unit.

FIG. 17 is a block diagram showing a configuration of a receiving apparatus according to a fourth embodiment of the present invention.

FIG. 18 is a flowchart showing an operation of the receiving apparatus according to the fourth embodiment of the present invention.

FIG. 19 is a flowchart showing the operation of the receiving device according to the fourth embodiment of the present invention.

FIG. 20 is a diagram showing an example of program detailed information displayed on a monitor.

FIG. 21 is a flowchart showing an operation of the receiving apparatus according to the fourth embodiment of the present invention.

FIG. 22 is a block diagram showing a configuration of a receiving apparatus according to a fifth embodiment of the present invention.

FIG. 23 is a diagram showing an example of program information stored in a program information storage unit.

FIG. 24 illustrates an example of an EPG.

FIG. 25 is a flowchart showing the operation of the receiving apparatus according to the fifth embodiment of the present invention.

FIG. 26 is a diagram showing an example of a remote controller used by a viewer.

[Explanation of symbols]

 Reference Signs List 50 receiving device 11 program receiving unit 12 program storing unit 13, 21, 41 information receiving unit 14 schema constructing unit 15, 22 schema managing unit 16 information storing unit 17 synchronization information acquiring unit 18 program reproducing unit 19, 31, 42 information displaying unit 23 Tag Attribute Corresponding Information Receiving Unit 24 Tag Attribute Corresponding Information Accumulating Unit 32 Signal Receiving Unit 33 Display Control Unit 43, 55 Detailed Information Acquiring Unit 44 Detailed Information Accumulating Unit 51 Command Receiving Unit 52 Program Information Storage Unit 53 Program Guide Display Unit 54 Program Identifier acquisition unit 60 Remote control 64 Arrow button 65 Enter button

Claims (20)

[Claims] 1. An information receiving unit for receiving program attribute information having at least one attribute data tagged with a tag indicating an attribute of a broadcast program; and each tag in the program attribute information received by the information receiving unit. A schema construction unit that constructs a database schema composed of attributes corresponding to: a schema management unit that manages the database schema constructed by the schema construction unit; and the attribute data in the program attribute information received by the information receiving unit. An information storage unit for storing an attribute in a database schema managed by a schema management unit and storing the attribute in a data storage area of an attribute corresponding to a tag added to the attribute data. 2. An information receiving unit for receiving program attribute information having at least one attribute data tagged by a tag, and a tag attribute for receiving tag attribute correspondence information indicating a correspondence between the tag and an attribute constituting a database schema. A correspondence information reception unit, a tag attribute correspondence information storage unit that stores the tag attribute correspondence information, a schema management unit that manages a database schema, and a tag attribute correspondence information stored in the tag attribute correspondence information storage unit. An information storage unit for storing the program attribute information received by the information reception unit in a database schema managed by the schema management unit. 3. The receiving apparatus according to claim 1, further comprising: a program receiving unit that receives a program, wherein the information receiving unit receives the program received by the program receiving unit and a program attribute received by the information receiving unit. Further receiving synchronization information that is information for synchronizing with information, the schema builder further adds an attribute for storing synchronization information to a database schema, and the information storage unit further includes the information receiving unit Receiving the synchronization information received in the data schema of the corresponding attribute in the database schema. 4. The receiving apparatus according to claim 2, further comprising: a program receiving unit that receives a program, wherein the information receiving unit receives a program received by the program receiving unit and a program attribute received by the information receiving unit. Further receiving synchronization information that is information for synchronizing information, the database schema managed by the schema management unit also has an attribute for storing synchronization information, and the information storage unit further receives the information. A receiving unit that stores the synchronization information received by the unit in a data storage area of a corresponding attribute in the database schema. 5. The receiving device according to claim 3, wherein the program receiving unit stores a program received by the program receiving unit, and an information display unit that displays program attribute information stored in the information storage unit. A synchronization information acquisition unit that acquires synchronization information corresponding to the program attribute information from the information storage unit; a program that retrieves and reproduces a program stored in a program storage unit based on the synchronization information acquired by the synchronization information acquisition unit. A receiving device further comprising a reproducing unit. 6. The receiving device according to claim 5, wherein a signal receiving unit that receives a switching signal that is a signal for switching program attribute information displayed on the information display unit, and a switching signal is received by the signal receiving unit. A display control unit that instructs the information display unit to switch display according to the switching signal, wherein the information display unit switches between program attribute information to be displayed according to the instruction of the display control unit and a program. A receiver characterized by the above-mentioned. 7. The receiving apparatus according to claim 1, wherein the information receiving unit receives acquisition information for acquiring program detailed information corresponding to program attribute information received by the information receiving unit. A detailed information acquiring unit that acquires program detailed information corresponding to the attribute information in accordance with the acquired information; and a detailed information storage unit that stores the program detailed information acquired by the detailed information acquiring unit in association with the program attribute information. A receiving device, comprising: 8. The receiving device according to claim 1, wherein a program information storage unit stores one or more program information having a program identifier for identifying the program and a broadcast start time of the program. A program guide display unit for displaying one or more program information; a command input unit for inputting a command for selecting a program cell indicating one program from the program guide displayed on the program guide display unit; and an input for the command input unit A program identifier acquisition unit for retrieving a program identifier corresponding to a program cell selected by the received command; a detailed information acquisition unit for acquiring program detailed information using the program identifier acquired by the program identifier acquisition unit as a key; A detailed information storage unit for storing the program detailed information acquired by the unit in association with the program identifier. 9. The receiving device according to claim 7, wherein the information receiving unit receives an update flag indicating that the detailed program information has been updated and the acquired information, and the detailed information acquiring unit is configured to transmit the detailed program information according to the acquired information. The detailed information accumulating section overwrites the detailed program information acquired by the detailed information acquiring section with the detailed program information corresponding to the program attribute information. 10. A transmitting apparatus for transmitting tag attribute correspondence information indicating correspondence between tags and attributes constituting a database schema. 11. A transmitting apparatus for transmitting acquired information for identifying updated detailed program information. 12. An information receiving step of receiving program attribute information having at least one attribute data tagged with a tag indicating an attribute of a broadcast program, and each tag in the program attribute information received in the information receiving step. A schema construction step of constructing a database schema composed of attributes corresponding to the attribute, and an attribute in the database schema constructed in the schema construction step, and corresponding to a tag added to the attribute data received in the information receiving step Storing the attribute data in the data storage area of (1). 13. An information receiving step of receiving program attribute information having at least one attribute data tagged with a tag, and a tag attribute for receiving tag attribute correspondence information indicating a correspondence between the tag and an attribute constituting a database schema. A correspondence information receiving step, and, based on the tag attribute correspondence information, an information storage step of storing the attribute data in a data storage area of an attribute corresponding to the tag added to the attribute data received in the information receiving step. A receiving method, comprising: 14. The receiving method according to claim 12, further comprising a program receiving step of receiving a program, wherein the program receiving step further comprises: synchronizing the program received in the program receiving step with the program attribute information received in the information receiving step. Synchronization information, which is information, is further received in the information receiving step. In the schema construction step, an attribute for storing synchronization information is further added to a database schema. In the information storing step, the information receiving step is further performed. A receiving method, wherein the received synchronization information is stored in a data storage area of a corresponding attribute in the database schema. 15. The receiving method according to claim 13, further comprising a program receiving step of receiving a program, wherein the program receiving step further comprises: synchronizing the program received in the program receiving step with the program attribute information received in the information receiving step. Synchronous information, which is information, is further received in the information receiving step, the tag attribute correspondence information also has an attribute corresponding to the synchronization information, and in the information storing step, the information reception is performed in a data storage area of the attribute. A receiving method for storing the synchronization information received in the step. 16. The receiving method according to claim 14, wherein: a program storing step of storing the program received in the program receiving step; and synchronization information corresponding to the program attribute information received in the information receiving step. A receiving method, further comprising an information display step of taking out a program stored in the program storing step and displaying the program and the program attribute information received in the information receiving step. 17. The receiving method according to claim 16, wherein: a signal receiving step of receiving a switching signal that is a signal for switching information to be displayed in the information displaying step; A reception method, further comprising a display control step of giving an instruction to switch display according to a switching signal, wherein the information display step switches between program attribute information to be displayed and a program in accordance with the instruction in the display control step. 18. The receiving method according to claim 12, further comprising: obtaining acquisition information for acquiring program detailed information corresponding to the program attribute information received in the information receiving step; A detailed information acquiring step of acquiring program detailed information corresponding to the attribute information in accordance with the acquired information; and a detailed information storing step of storing the program detailed information acquired in the detailed information acquiring step in association with the program attribute information. A receiving method, comprising: 19. The receiving method according to claim 12, wherein at least one program information storing step includes storing at least one program identifier having a program identifier for identifying the program and a broadcast start time of the program. A program table displaying step of displaying one or more program information; a command receiving step of receiving a command to select a program cell indicating one program from the program table displayed in the program table displaying step; A program identifier obtaining step of extracting a program identifier corresponding to a program cell selected by the instruction; a detailed information obtaining step of obtaining detailed program information using the program identifier obtained in the program identifier obtaining step as a key; and the detailed information obtaining step A detailed information storing step of storing the detailed program information acquired in step 2 in association with the program identifier. A receiving method, further comprising: 20. The receiving method according to claim 18, further comprising: receiving an update flag indicating that the program detailed information has been updated in the information receiving step; and receiving an update flag in the information receiving step.
In the detailed information obtaining step, the program detailed information is obtained according to the obtained information, and in the detailed information storing step, the program detailed information obtained in the detailed information obtaining step is overwritten with the program detailed information corresponding to the program attribute information. A receiving method characterized by the above-mentioned.