JP2001309340A - Information providing system, information receiver and their methods - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information providing system, an information transmitter, an information receiver and their methods capable of effectively utilizing information provided from a broadcasting station. SOLUTION: The information provided by the broadcasting station 10 can effectively be utilized in such a manner that the information transmitter 15 distributes the optional number of pieces of unit information about learning as providing information by describing the providing information in a variable length, and the information receiver 3 selects an optional piece of unit information among pieces of distributed unit information, makes the selected unit information available and records the unit information on a prescribed recording medium 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an information providing system,
The present invention relates to an information receiving apparatus and an information receiving method, and is suitably applied to, for example, an information providing system, an information receiving apparatus and an information receiving method for transmitting and receiving broadcast waves.

[0002]

2. Description of the Related Art Conventionally, a broadcasting station on a transmitting side distributes a broadcast wave on which provided information such as a program or a commercial is superimposed, and a receiving device (hereinafter referred to as IR) provided in each home on the receiving side.
D: Integrated Receiver Dec
There is an information providing system for receiving broadcast waves supplied from a broadcast station, extracting provided information superimposed on the broadcast waves, and displaying the information on a monitor of a television device.

[0003]

In such an information providing system, a broadcasting station distributes provided information that meets the needs of many viewers, but it is determined by individual viewers. The user simply selects a desired program from the number of channels and the time period.

[0004] Therefore, provided information distributed from a broadcasting station often becomes passive information for a viewer. As a specific example, for example, when a user is watching a cooking program provided as provided information from a television broadcasting station, details regarding the article, such as the price of the article worn by the performer of the program and the selling place, etc. If you want to know more information, the cooking program provided as information provided by the television broadcasting station at this time has no information on the article, and in this case, the user can call the broadcasting station, check at the bookstore, Complicated work such as accessing a search homepage can be performed. For this reason, the user often gives up or forgets to acquire the detailed information on the article, and does not always obtain desired information.

[0005] As described above, in the information providing system, there is a problem that the broadcast station cannot effectively use the provided information because there are few types of the provided information that can be selected according to the individual needs of the individual viewer.

[0006] If the above problems are solved, the broadcasting station can provide much more information, so that the viewer can view the provided information supplied from the broadcasting station with will. Become. As a result, viewers are more likely to purchase goods and the like evoked based on the information provided from the broadcasting station, which is expected to have a great effect on the activation of the distribution economy.

The present invention has been made in view of the above points, and an object of the present invention is to propose an information providing system, an information receiving apparatus, and a method thereof that can effectively use information provided by a broadcasting station.

[0008]

According to the present invention, in order to solve the above-mentioned problems, an information transmitting apparatus distributes an arbitrary number of unit information related to learning as provided information by describing the provided information in a variable length. The information receiving apparatus selects the arbitrary unit information from the distributed unit information and records the selected unit information in a usable state on a predetermined recording medium, thereby enabling the information provided by the broadcast station to be effective. Available to

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

(1) Information Providing System In FIG. 1, 1 indicates an information providing system as a whole.
A broadcasting station 2 such as a television broadcasting station or a radio broadcasting station distributes broadcast waves.
Receivers installed in various environments (hereinafter referred to as I
RD: Integrated Receiver De
3) is configured to receive a broadcast wave distributed from the broadcast station 2.

The IRD 3 includes an IC (Integrate).
d Circuit), a slot (not shown) for mounting a stick-shaped portable recording medium (hereinafter, referred to as a removable medium) 5 having a built-in memory is provided. The user mounts the removable media 5 individually owned.

The broadcasting station 2 distributes the additional information, which is the additional information provided by the information providing advertiser 4, by superimposing the additional information on a broadcast wave. A broadcast wave distributed from the station 2 is received, additional information, which is additional information, is extracted from the received broadcast wave as necessary, and recorded on the removable medium 5.

Various terminal devices (personal computer 6, mobile phone 7, PDA (Personal Dig)
The Ital Assistants 8 and the navigation device 9) are also provided with slots (not shown) for mounting the removable media 5, and when the user uses these terminal devices, the user adds additional information to the operated terminal. The removable medium 5 in which the additional information is recorded is mounted.

Here, when the user mounts the removable medium 5 on which the additional information, which is the additional information, is recorded in any of the terminal devices, the terminal device on which the removable medium 5 is mounted is attached to the recorded additional information. Based on the characteristics of the terminal device attached at that time, various types of information are provided to the user.

As described above, the user possesses the removable medium 5 on which the additional information, which is the additional information, is recorded, and can obtain various types of information using each terminal device at a desired time or at a desired place. It has been done.

(2) Example of Information Providing System FIG. 2 shows a system example of the information providing system 1 as a whole. The television broadcasting station 10 is adapted to create a television program as needed. The audio signal S10 and the video signal S11 of the created television program are output to the transmitting device 15.

As shown in FIG. 3, an audio signal S10 and a video signal S11 of a television program created by the television broadcasting station 10 are input to the transmitting device 15. At this time in the same manner, the transmission apparatus 15, among a plurality of television programs that are created in other audio signal _S12 l _{~S12 n} and the video signal _S13 l _{~S13 n} of a predetermined number of television programs are also input You.

The transmitting device 15 converts the input audio signals S10 and S12 _{1 to} S12 _n into the audio encoder 2
1 and the video signals S11 and S13 _{l to} S13.
Outputs the 13 _n to the video encoder 22.

The audio encoder 21 converts the audio signals S10 and S12 _{1 to} S12 _n into MPEG (Moving), respectively.
Picture Experts Group) compression encoding by an encoding method based on standard, the resulting speech encoded data D14 and _D15 l-D15 _n
Are output to the multiplexer (MUX) 23, respectively.

On the other hand, the video encoder 22 outputs the video signal S1
Each MPEG 1 and _S13 l _{~S13 n} a (Mov
ing Picture Experts Grou
p) Compression-encoding by the encoding method based on the standard, and the resulting encoded video data D16 and D17 _l to
The D17 _n respectively output to the multiplexer 23.

[0020] Multiplexer 23, these coded data _D14, D15 l _{~D15 n,} D16 and _D17 l ~
D17 _n is subjected to a time-division multiplexing process to generate a bit stream, the bit stream is scrambled, and the resulting multiplexed data D18
Is output to the modulator 24.

The modulator 24 applies a QPSK (Quadrature Phase Shi) to the multiplexed data D18.
ft Keying) modulation scheme is performed, and the resulting transmission signal S20 is supplied to the parabona antenna 26.

As a result, a radio wave corresponding to the transmission signal S20 from the parabona antenna 26 is emitted toward a communication satellite (not shown), and the number of transponders is transmitted through a transponder (not shown) provided in the communication satellite. Is transmitted as a broadcast wave to the IRD 3 (FIG. 2) installed in each environment on a transmission channel corresponding to.

IRD3 (FIG. 2) is, as shown in FIG.
When various command signals S1 superimposed on infrared rays and transmitted from the remote controller 29 are received by the infrared ray receiving section 28, the infrared ray receiving section 28 performs photoelectric conversion on the received infrared rays to thereby superimpose them on the infrared rays. The instruction signal S1 is taken out, and this is sent to the CPU (Centra
l Processing Unit) 36.

As a result, the CPU 36 reads the ROM (Ree).
d Only Memory) 38 is read out as needed, and the read out control program is read from a RAM (Random Access).
(Memory) 39 to execute various processes.
Each circuit section of the RD3 is controlled.

Here, the user operates the remote controller 29.
When a predetermined channel selection operation is performed, the remote controller 29 generates a command signal S1 corresponding to the operation, and superimposes the generated command signal S1 on infrared rays and transmits it to the IRD 3.

When the IRD 3 receives the command signal S1 transmitted by being superimposed on the infrared ray at the infrared receiving section 28, the infrared receiving section 28 performs a photoelectric conversion on the received infrared ray to thereby superimpose it on the infrared ray. The command signal S1 is extracted and sent to the CPU 36.

As a result, the CPU 36 controls the front end 3
0, the front end 30 extracts a broadcast wave of a channel (broadcasting station) corresponding to the channel selection signal S3 from broadcast waves received by a receiving antenna (not shown), and broadcasts the extracted channel. The multiplexed data D21 is generated by demodulating the wave and sent to the demultiplexer 31.

The demultiplexer 31 outputs the multiplexed data D
21 is temporarily stored in a buffer (not shown), and the stored multiplexed data D21 is transmitted in advance using the descrambling key data owned by the IRD 3 to the transmitting device (FIG. 2).
After the descrambling performed in step (1), the desired audio encoded data D22 and video encoded data D23 (data corresponding to the channel selected by the user) are extracted by appropriately reading out the scramble.

Further, the demultiplexer 31 sends out the extracted audio encoded data D22 to the audio decoder 32,
The encoded video data D23 is sent to the video decoder 33.

The audio decoder 32 outputs the encoded audio data D
22 is expanded and decoded to generate audio data D24, which is converted to a digital / analog (D / A: Digi
tal / Analog) conversion circuit 34.

The D / A conversion circuit 34 outputs the audio data D24
Of the television broadcast station 10 by converting
Signal S of the original television program created in
10 (S12 _{1 to} S12 _n ) are restored and output to the television device 11 (FIG. 2).

On the other hand, the video decoder 33 expands and decodes the video coded data D23, thereby obtaining the video data D2.
5 is output to the RGB encoder 35.
The RGB encoder 35 converts the video data D25 into an analog signal, and converts the video data D25 into a video signal S11 (S1) of the original television program created in the television broadcasting station 10.
3 _{l to} S13 _n ) and further restored to NTSC (Nat
ionical Television System C
(i.e., a luminance signal S26 and a chrominance signal S27), and outputs them to the monitor 12 (FIG. 2) of the television device 11.

The television program created in the television broadcasting station 10 on the transmitting side in this manner is transmitted to the monitor 12 (FIG. 2) of the television apparatus 11 on the receiving side.
Is provided to the user (viewer) through the display screen of the user, so that the user can view the television program.

In the information providing system 1, electronic program guide information (hereinafter referred to as EP) for the purpose of informing a user of a program provided from each broadcasting station.
G data) and generate the generated EP
Additional information is added to the G data as an advertisement of each information providing advertiser, and is delivered.

This EPG data is generated for each program,
XML (extensible Markup L) which is a tag language using a tag sandwiched between “<” and “>”
(language).

XML is a document type definition (DTD: Docu).
The variable length description is possible by specifying the attribute of the hierarchical structure and the data type for the tag defined by the self-defined tag by the “ment type definition”.

That is, as shown in FIG. 5, the EPG data is a Broadcaster-code for identifying a broadcast system among various existing broadcast systems such as a satellite broadcast and a terrestrial broadcast so that the broadcast system can be specified. ID (I
And a Service- for identifying which service content among various service contents set in the broadcasting system can be specified.
ID and various programs (including commercials)
E for identifying the program so that it can be specified
It has a hierarchical structure consisting of vent-ID.

Further, the EPG data includes a program (Even
t-ID) is further categorized, and among the categorized various units (program scenes), which unit (program scene)
Local for identifying so that it can be specified
The Event-ID is provided in a lower layer below the Event-ID, and the LocalEvent-ID is:
For example, it is divided into various units (program scenes) such as a cooking scene (a cooking scene in a certain program), a travel scene, and the like (a traveling scene in a certain program).
Also, Event-ID or LocalEvent-I
Additional information is added to D as needed.

The file structure of the EPG data is shown in FIG.
As shown in FIG. 7, a predetermined program scene (Local-ID) is assigned to a program (Event-ID) and the title of the program.
Event-ID) and the title of the program scene are provided, and a predetermined program scene (LocalEven) is further provided.
(nt-ID) and the title of the program scene, a category is provided, and additional information is added to the category. Since the LocalEvent-ID and the category are described in the EPG data using XML for one program (Event-ID), a plurality of LocalEvent-IDs and categories can be added as necessary.

In the additional information, a predetermined number of items (attributes) are determined in advance by the television broadcasting station 10, Target device information indicating the type of various terminal devices, and an expiration date indicating a period during which the additional information can be used. , Genre and additional information, each item of the sponsor indicating the advertiser, and a URL (Uniform Resource Lo) indicating the access location of the sponsor's homepage.
cat), TEL indicating the telephone number of the sponsor, and access items describing access information such as a position indicating the location (position information: latitude, longitude) of the sponsor.

Since this additional information is described in the EPG data using XML, it is possible to add or delete new items as necessary from various items determined by the television broadcasting station 10 in advance. Has been made.

Further, the additional information is provided with a predetermined information identifier defined between the television broadcasting station 10, the IRD 3, and various terminal devices. The information identifier can identify a matter described in each item of the additional information.

The Target device information in each item of the additional information includes an identification code indicating which terminal device can handle the access information described in the access item, and is described in the access information. A combination of terminal devices that can be handled is represented by an identification code according to the item. For example, when the item of “URL” is described among the items of the additional information, the item of Target device information includes an identification code indicating that the terminal device that can handle the URL is a personal computer, a PDA, and a mobile phone. When the additional information is described in the item "TEL" of the items of the additional information, the item of the target device information is an identification code indicating that the terminal device that can handle the telephone number is a mobile phone.

Thus, each terminal device (FIG. 1: personal computer 6, mobile phone 7, PDA 8, navigation device 9) reads out access items based on the Target device information.

By the way, the category is LocalEven
Indicates a unit that is a further subordinate concept of t-ID (classified unit (program scene)), and the category is, for example, when LocalEvent-ID is “music scene”, music in the music scene is related. "Music" indicating the clothing relationship of the performers in the music scene.

The genre, which is one of the items of the additional information, indicates a unit which is a lower concept of the category.
Specifically, for example, when the category is “music”, the genre is described as hip-pop, reggae, techno, or the like.

Event-ID and LocalEv
As shown in FIG. 7, in the relationship between the ent-ID and each item of the additional information, the Event-ID and the LocalEv
The ent-ID is a variable portion that changes according to the number of programs created by the television broadcasting station 10.

On the other hand, in the additional information, since each information providing advertiser describes each item prearranged by the television broadcasting station 10 on each item, the information providing advertiser has an invariable part. Becomes
Therefore, the variable portion is information provided by the television broadcasting station 10 to the user (viewer), and the invariable portion is information provided by each information providing advertiser to the user.

Further, Event-ID and LocalE
The vent-ID is an identifier for the additional information for the IRD 3 on the receiving side.

[0050] Such additional information is transmitted to the television broadcasting station 1
0 and each information providing advertiser who has performed the predetermined charging process is described. After performing the predetermined charging process with the television broadcasting station 10, the teaching material maker 17 A connection process is performed by a predetermined communication means using a computer (not shown) installed in the television broadcasting station 10 to connect to the additional information management server 16 in the television broadcasting station 10 (FIG. 2).

The computer (not shown) of the teaching material maker 17 has a CPU and a RAM (Random Accesses).
s Memory), ROM (Read Only M)
memory, a communication interface for exchanging data with a communication network (not shown), a VRAM storing characters and graphics corresponding to data to be displayed on a display unit such as a hard disk drive or a liquid crystal display panel. Vi
signal from a user operating an input unit such as a keyboard and a mouse.
Are connected to the data bus BUS.

The CPU executes various processes in accordance with the processing programs stored in the ROM, and controls each circuit according to the processes. The CPU displays the various processing contents on the display unit.

In this case, as shown in FIG. 8, when a predetermined connection operation is performed through the input unit, the computer (not shown) of the teaching material maker 17 changes the input interface to:
Data representing the connection operation is sent to the CPU. Thus, the CPU makes a call to the additional information management server 16 via the communication interface, establishes a communication path, and establishes a session. Then, the CPU of the computer (not shown) performs Event-ID (for example, “DRG7”) obtained on the hard disk drive by performing predetermined billing processing with the television broadcasting station 10 in advance.
), LocalEvent-ID (for example, “LK
IO)) and a category (to be a dish) are read out and transmitted to the additional information management server 16 as additional information acquisition data D40.

The additional information management server 16 stores each additional information described by each information providing advertiser as Even.
The management is performed based on the t-ID and the LocalEvent-ID, and as shown in FIG. 9, the additional information acquisition data D transmitted from the learning material maker 17 at this time.
40 is received by the communication unit 16A, and the received additional information acquisition data D40 is received by the application processing unit 16B.
To supply.

The application processing unit 16B transmits the Event-ID “D” which is the content of the additional information acquisition data D40.
RG7 "and LocalEvent-ID" LKIO "
Additional information entry data D described in XML based on
41, and supplies this to the media conversion unit 16C.

The media conversion unit 16C converts the additional information entry data D41 into the communication unit 16A by converting the additional information entry data D41 into the data format of the computer (teaching material maker 17) that has requested the acquisition of the additional information.
To the computer (not shown) of the teaching material maker 17 via the computer.

Thus, the CPU of the computer (not shown) of the teaching material maker 17 displays an additional information entry screen as shown in FIG. 10 on the display unit, for example, to urge the teaching material maker 17 to enter.

Each item of the additional information displayed at this time is
Since each information providing advertiser can describe only desired items, the television broadcasting station 10 responds to each information providing advertiser according to the intention of each information providing advertiser as a result. Additional information can be provided to the user.

Therefore, if the teaching material maker 17 does not want to access the position and the telephone, for example, the item of the expiration date is set to “XXXXX” through the input unit of the computer (not shown).
Year, $ / month / day "," Educational materials "for genre items," xxxxxx company "for sponsor items, and" http "for URL items.
p: // www. %%%%%%%. ne. jp / ”, etc., but not the position and telephone items. The CPU of the computer (not shown) writes this as additional information filled data D43 to the additional information management server 16 via the communication interface. (FIG. 9) A reply will be sent.

Here, in the additional information entry screen, Ta
In the item of rget device information, when an access item (URL) is described, a combination of terminal devices that can be handled is represented by an identification code according to the described access item. That is, the identification code of the Target device information indicates the intention (each terminal device desired to be used) of the teaching material maker 17.

The additional information management server 16 is provided by the teaching material maker 1
After a predetermined security check is performed on the additional information filled data D43 supplied from 7, the data is sent to the media conversion unit 16C. The media conversion unit 16C
The additional information filled data supplied from each information providing advertiser is described in XML conforming to the EPG data, and the additional information filled data D43 supplied from the teaching material maker 17 is additional information. Of the additional information, the additional information D44 is generated by omitting the additional information items (telephone number and position items) not described at this time and rewriting the XML in XML conforming to the EPG data.
nt-ID “DRG7”, LocalEvent-ID
It is stored in the database 16D as a file of “LKIO” (FIG. 9).

Here, the EPG generation unit 25 of the transmission device 15
In FIG. 3, for example, one week of EPG data is periodically created, and in this case, the EPG generation unit 2
5 executes the EPG data generation processing procedure shown in FIG.

That is, in FIG.
5 enters the EPG data generation processing procedure RT1 and moves to step SP1, where a predetermined number of Eve are described in the XML description.
An nt-ID is generated, and the routine goes to step SP2.

In step SP2, the EPG generator 25
Is a predetermined number (for example, one week of Event-
LocalEve for each Event-ID of
It is determined whether to generate an nt-ID. Here, if a negative result is obtained, this means that the television broadcasting station 10 does not want to add LocalEvent-ID to all of the generated predetermined number (for example, one week of Event-ID) of each Event-ID. At this time, the EPG generator 25 proceeds to step SP4.

On the other hand, if a positive result is obtained in step SP2, this means that a predetermined number of generated Event-IDs (for example, one week of Event-ID) are generated.
Indicates that the television broadcast station 10 wishes to add the LocalEvent-ID to all or any of the above. At this time, the EPG generator 25 proceeds to the subsequent step SP3.

In step SP3, the EPG generator 25
Is the Event-I desired by the television broadcasting station 10.
A predetermined number of LocalEvent-IDs are added to D, and one or more categories are added to the LocalEvent-ID, and the process proceeds to step SP4.

In step SP4, the EPG generator 25
Is Event-ID or LocalEvent-ID
It is determined whether additional information is added to any of the categories. Here, if a negative result is obtained, this means that the additional information or Locala corresponding to the generated Event-ID
There is no additional information corresponding to the Event-ID (Event-ID or Lo generated by the television broadcast station 10).
calEvent-ID indicates that no additional information is provided by each information providing advertiser). At this time, the EPG generation unit 25 proceeds to step SP6 and
The G data generation processing procedure RT1 ends.

On the other hand, if a positive result is obtained in step SP4, this means that the generated Event-I
Additional information or LocalEvent-ID corresponding to D
(Event-ID generated by the television broadcast station 10 or LocalEvent-
ID indicates that additional information is provided by each information providing advertiser).
Moves to the following step SP5.

In step SP5, the EPG generator 25
Is the additional information or Locala corresponding to the Event-ID.
The additional information corresponding to the lEvent-ID is added (read from the database 16D of the additional information management server 16), and the process proceeds to step SP6 where the EPG data generation processing procedure RT1 ends.

As described above, in the information providing system 1, the television broadcasting station 10 transmits the LocalEvent-ID to be added to the EPG data and the description of the additional information to the XPG.
Since the program is performed in the ML, a plurality of LocalEvent-IDs and further a plurality of categories can be added to one program (Event-ID) as shown in FIG. Thus, a plurality of pieces of additional information corresponding to the added various units (categories) can be added (that is, several Locas).
lEvent-ID) category and additional information can be added). FIG. 13 shows a file description example of the additional information described above with reference to FIG.

The EPG data D25 thus generated by the EPG generation unit 25 (assuming that the additional information provided by the teaching material maker 17 is also included as additional information)
The signal is output to the multiplexer 23 (FIG. 3) in the transmitting device 15 (FIG. 3) of the television broadcasting station 10 (FIG. 2).

In this case, the multiplexer 23 (FIG. 3)
EPG data D25 supplied from EPG generation unit 25
At this time, a bit stream is generated by performing time division multiplexing processing on each of the audio encoded data supplied from the audio encoder 21 and the video encoded data supplied from the video encoder 22. The bit stream is scrambled, and the resulting multiplexed data D30 is output to the modulator 24.
Therefore, as a result, the transmission device 15 distributes the broadcast wave on which the EPG data is superimposed to the IRD 3.

In this case, the front end 30 of the IRD 3 (FIG. 4) extracts the broadcast wave of the channel on which the EPG data is superimposed from the received broadcast wave, and demodulates the broadcast wave of the extracted channel. To generate the multiplexed data D30 and send it to the demultiplexer 31.

The demultiplexer 31 outputs the multiplexed data D
30 is temporarily stored in a buffer (not shown), and the stored multiplexed data D30 is transmitted in advance using the descrambling key data owned by the IRD 3 (FIG. 3).
After the scramble performed in step (1) is released, the EPG data D25 is transferred to the flash memory 41 via the bus BUS and stored therein by appropriately reading the scramble.

As described above, the IRD 3 (FIG. 4) periodically updates the EPG data stored in the flash memory 41, and always stores the latest EPG data in the flash memory 41. .

In this state, when the user is watching a desired television program (referred to as an English conversation program) via the display screen of the monitor 12 (FIG. 2) of the television device 11, for example, When the user wants to acquire detailed information on English conversation, such as raising interest in the used teaching materials, the user mounts the removable medium 5 owned by the user in a slot provided in the IRD 3.

As shown in FIG. 14, the removable medium 5 is a connector 5A for mounting in a slot of each terminal device (FIGS. 1 and 2: IRD 3, personal computer 6, mobile phone 7, PDA 8 and navigation device 9). And a memory 5B connected to the connector 5A via a bus BUS.

When the removable medium 5 is the IRD 3
(FIG. 4), when the detection contact of the removable medium 5 is connected to the contact of the removable media interface 43 in the IRD 3, the interface processing unit 44 changes the signal level for detection of the removable medium (see FIG. 4). A change from a logic "L" level to a logic "H" level) is detected, and an interrupt signal is sent to the CPU 36 to perform interrupt processing. Thereby, the CPU 36 detects that the removable medium 5 is mounted.

The interface processing unit 44 transmits and receives data to and from the removable medium 5
This is a processing block for performing protocol processing according to the interface specifications. As a result, the interface processing unit 44 enters a state in which additional information serving as user-specific information can be written to the removable medium 5.

The removable media interface 43 is constituted by a serial interface and has at least three data lines. The first data line transmits a clock signal during data transmission, the second data line transmits a status signal required during data transmission, and the third data line transmits data written to or read from the removable medium 5. Transmit serially.

In a state where the removable medium 5 is mounted in the slot of the IRD 3 (the CPU 36 detects that the removable medium 5 is mounted), the user uses the remote controller 29 to perform a predetermined additional information acquisition operation. Then, the remote controller 29 generates a command signal S1 corresponding to the operation, and superimposes the generated command signal S1 on infrared rays and transmits the signal to the IRD 3.

When the IRD 3 receives the command signal S1 superimposed on the infrared ray and transmitted by the infrared ray receiving section 28, the infrared ray receiving section 28 performs photoelectric conversion on the received infrared ray to thereby superimpose it on the infrared ray. The command signal S1 is extracted and sent to the CPU 36.

Thus, the CPU 36 sets the IRD
3 stores all additional information existing in the lower hierarchy of the Event-ID corresponding to the English conversation program selected (displayed on the monitor by the user) from the flash memory 41 to the RAM.
At the same time, the dictionary data such as characters and symbols stored in the ROM 38 is also developed on the RAM 39, and all the additional information read out at this time based on the dictionary data on the RAM 39 is graphically displayed. By performing the processing, the additional information selection screen data D45 is generated and transmitted to the graphic engine 40.

The graphic engine 40 performs a digital-to-analog conversion process on the additional information selection screen data D45, and further converts it into an NTSC luminance signal and color difference signal to generate an additional information selection image signal S46. It is sent to the RGB encoder 35.

The RGB encoder 35 outputs the additional information selection image signal S 46 supplied from the graphic engine 40.
And a video signal supplied from the video decoder 33 at this time.
(FIG. 2), the television apparatus 11 displays on the monitor 12 (FIG. 2) an image corresponding to the mixed signal S46 and an additional information selection screen as shown in FIG. 15, for example. Prompt.

The user uses the remote controller 29 to display the additional information selection screen displayed at this time.
When a desired number (a number corresponding to the additional information provided by the teaching material maker) is input and a predetermined acquisition operation is performed, the remote controller 29 issues an instruction signal S corresponding to the operation.
1 is generated, and the generated command signal S1 is superimposed on infrared rays and transmitted to the IRD 3.

When the IRD 3 receives the command signal S1 superimposed on the infrared ray and transmitted by the infrared ray receiving section 28, the infrared ray receiving section 28 performs photoelectric conversion on the received infrared ray to thereby superimpose it on the infrared ray. The command signal S1 is extracted and sent to the CPU 36.

As a result, the CPU 36
The additional information corresponding to the number input (selected) by the user among the additional information developed on 39 is sent to the filter unit 42.

The filter section 42 filters (rewrites or deletes) each additional information based on the registration information registered in the flash memory 41 of the IRD 3 in advance.

Here, the registration information is information for registering various terminal devices owned by the user in the IRD 3 or various terminal devices desired to be used as an identification code, and the identification code is a flash memory in the IRD 3. 4
1 is stored. The identification code has a combination corresponding to the identification code of Target device information (FIG. 6), which is an item of additional information, and is read out by the CPU 36 when the removable medium 5 is mounted.

In this registration information registration method, when the user purchases the IRD 3, the remote controller 29
When a predetermined initial registration operation is performed using
For example, a registration screen as shown in FIG. 17 is displayed to prompt the user to register. On the other hand, the user performs a predetermined registration operation using the remote controller 29 on the registration screen to register. The registered content registered at this time is the CPU
36 is reflected in the identification code of the registration information. That is, the identification code of the registration information represents various terminal devices used by the user or a combination of various terminal devices desired to be used.

Incidentally, the IRD 3 is designed to rewrite the registration information again. In this case, for example, when the user purchases a new terminal device and performs a predetermined re-registration operation using the remote controller 29, the CPU 36
Displays a registration screen as shown in FIG. 17 again, and prompts the user to register again. On the other hand, the user performs a predetermined registration operation using the remote controller 29 on the registration screen to register again. The registration contents registered at this time are reflected by the CPU 36 on the identification code of the registration information.

In a state where the additional information corresponding to the number input (selected) by the user is transmitted from the RAM 39 to the filter unit 42, the filter unit 42 sets the Tar of each of the additional information supplied from the RAM 39 at this time.
The combination of both the identification code (combination) of the get device information and the identification code (combination) of the registration information (the personal computer 6, the mobile phone 7, the PDA 8, and the navigation device 9 as the device owned by the user) match. Each of the T
Rewrite the identification code of the target device information.

That is, the filter unit 42 provides a Tar table representing a combination of terminal devices that the information providing advertiser wants to use.
Both the identification code of the get device information and the identification code of the registration information indicating the combination of the terminal devices used by the user match (the terminal device desired by the information providing advertiser and the terminal device used by the user). By rewriting the identification code of the target device information so as to be a combination, the rewritten identification code of the target device information is the terminal device that the information providing advertiser wants to use among the terminal devices that the user can use. It consists of a combination of devices.

That is, for example, the access information (for example, “http: // www. !!!!! .co.”) Is added to the access item (for example, “URL” item, “position” item) of the additional information.
jp "," N: 38 ° 24'15 "/ S: 138 ° 2
By describing 3'53 "", a personal computer and a navigation device (that is, a personal computer as a terminal device that an information providing advertiser wants to use) can be handled as a terminal device that can be handled represented by the identification code of Target device information. And the navigation device is represented), and only the personal computer (that is, the terminal device possessed by the user is the only personal computer) as the treatable terminal device represented by the identification code of the registration information, The filter unit 42 rewrites the identification code of the Target device information to a combination of terminal devices that can be used by the user (that is, a personal computer) among the terminal devices that the information providing advertiser wants to use.

The filter unit 42 determines in advance whether or not the expiration date described in the expiration date of the additional information has passed based on the clock in the IRD 3. If the described time limit has passed, the additional information is filtered (deleted).

When the identification code of the Target device information is rewritten, the filter unit 42 stores the rewritten additional information in the memory 5B of the removable medium 5 via the removable medium interface 43 and the connector 5A.

Here, the removable medium 5 stores the I
With the RD3 mounted in the slot, the IRD3
Searches the EPG data stored in the flash memory 41 for each item of LocalEvent-ID or additional information, and among the searched additional information, additional information desired by the user in the memory 5B of the removable medium 5.
Can also be stored.

In this case, when the user performs a predetermined operation for displaying the search screen from the remote controller 29, the remote controller 29 generates a command signal S1 corresponding to the operation, and transmits the generated command signal S1 to the infrared ray. And transmit it to IRD3.

When the IRD 3 receives the command signal S1 superimposed on the infrared ray and transmitted by the infrared ray receiving section 28, the infrared ray receiving section 28 performs photoelectric conversion on the received infrared ray to thereby superimpose it on the infrared ray. The command signal S1 is extracted and sent to the CPU 36.

The CPU 36 at this time reads the ROM
A search designation screen as shown in FIG. 18 is displayed on the monitor 12 of the television device 11 based on the search program stored in the storage device 38 to prompt the user to input.

On the other hand, when the user uses the remote controller 29 to input, for example, “English conversation scene” as information to be a keyword and performs a predetermined search operation,
The remote controller 29 generates a command signal S1 corresponding to the operation, and superimposes the generated command signal S1 on infrared rays and transmits the command signal S1 to the IRD 3.

When the IRD 3 receives the command signal S1 superimposed on the infrared ray and transmitted by the infrared ray receiving section 28, the infrared ray receiving section 28 performs photoelectric conversion on the received infrared ray to thereby superimpose it on the infrared ray. The command signal S1 is extracted and sent to the CPU 36.

Thus, the CPU 36 determines the various Ls of the EPG data stored in the flash memory 41 at this time.
Of the titles of ocalEvent-ID (FIG. 6),
RAM for each additional information in which "English conversation" characters are input
At the same time, the dictionary data such as characters and symbols stored in the ROM 38 is also developed on the RAM 39, and the additional information read at this time based on the dictionary data on the RAM 39 is subjected to graphic processing. To generate the search result screen data D35 and send it to the graphic engine 40.

The graphic engine 40 performs a digital-to-analog conversion process on the search result screen data D35, and further converts the search result screen data D35 into an NTSC luminance signal and color difference signal to generate a search result image signal S36.
It is sent to the B encoder 35.

The RGB encoder 35 receives the search result image signal S36 supplied from the graphic engine 40,
At this time, the video signal supplied from the video decoder 33 is mixed and output to the television device 11 (FIG. 2), and the television device 11 outputs the video and the search result image signal S3.
6 and a search result screen as shown in FIG.

In this way, the IRD 3 causes the television apparatus 11 to display the search result screen in which the “English conversation scene” is picked up, and urges the user to make a selection to store the “English conversation scene” in the memory 5 B of the removable medium 5. .

When the user uses the remote controller 29 to input, for example, 2 as a desired number on the search result screen displayed at this time and performs a predetermined additional information acquisition operation, the remote controller 29 A command signal S1 corresponding to the operation is generated, and the generated command signal S1 is superimposed on infrared rays and transmitted to the IRD 3.

When the IRD 3 receives the command signal S1 superimposed and transmitted on the infrared ray at the infrared ray receiving section 28, the infrared ray receiving section 28 performs photoelectric conversion on the received infrared ray and thereby superimposes it on the infrared ray. The command signal S1 is extracted and sent to the CPU 36.

Thus, the CPU 36 at this time
The additional information D ★★ corresponding to No. 2 input (selected) by the user among the additional information developed on 39 is sent to the filter unit 42.

At this time, the filter unit 42 stores the identification code (combination) of the Target device information of the additional information supplied from the RAM 39 and the registration information (the personal computer 6, the mobile phone 7,
The Tar and the identification code (combination) of the PDA 8 and the navigation device 9) are matched so that the combination of the two is the same.
Rewrite the identification code of the get device information and
The additional information obtained by rewriting the et device information is stored in the memory 5B of the removable medium 5 via the removable medium interface 43 and the connector 5A.

On the other hand, the user
When a predetermined search operation is performed by inputting, for example, “URL”, which is an item of additional information, as information to be a keyword, the CPU 36 determines, among various types of additional information of the EPG data stored in the flash memory 41, , Only the additional information having the item of URL is developed on the RAM 39, and in the same manner as when "news and drama scene" is searched,
The search result screen (FIG. 19) is displayed on the monitor 12 (FIG. 2), and the user is presented with the memory 5 of the removable medium 5.
The user is prompted to make a selection to be stored in B. CPU 36
Is the Tar of the additional information of the item selected by the user at this time.
The identification code of the get device information is rewritten, and the rewritten additional information is transmitted to the removable media interface 4.
3 and the memory 5B of the removable medium 5 via the connector 5A.

That is, when the removable medium 5
When the user performs a predetermined additional information acquisition operation using the remote controller 29 in a state where the CPU 3 of the IRD 3 is mounted in the slot of the DRD 3, as shown in FIG.
6 enters the additional information recording processing procedure RT2,
The process moves to P11, where all the LocalEvent-ID and additional information corresponding to the key operation of the remote controller 29 are extracted from the memory (flash memory 41), and the process moves to step SP12.

At step SP12, the CPU 36
It is determined whether the expiration date of each extracted additional information has passed. If a negative result is obtained here, this means that the expiration date of all the extracted additional information has not passed, and the CPU 36 proceeds to step SP14 at this time.

On the other hand, if a positive result is obtained in step SP12, this means that all or any of the extracted additional information has expired, and the CPU 36 then proceeds to step SP13. Move on to

At step SP13, the CPU 36
Of the additional information, the additional information whose validity period has expired is deleted, and the routine goes to step SP14.

At step SP14, the CPU 36
The extracted additional information is stored in removable media,
Moving to the next step SP15, the additional information recording processing procedure RT2 is ended.

As described above, IRD3 is a LocalEve
Since the nt-ID and the information identifier are described in the EPG data in XML, various searches can be performed. Therefore, the user can easily obtain desired additional information from the EPG data having a large amount of information in the removable medium. 5 can be recorded.

The memory 5 of the removable medium 5
After each additional information is recorded in B (additional information provided by the teaching material maker 17 is also recorded), the user stores the removable medium 5 uniquely owned by the personal computer 6, the mobile phone 7, the PDA 8, the navigation device, and the like. 9), the terminal device having the removable medium 5 attached thereto reads the additional information recorded on the removable medium 5, and based on the read additional information, the terminal device attached at that time. (In the case of a mobile phone, a call is made, and in the case of a navigation device, a position is displayed on a display unit of the navigation device, etc.).

That is, as the first terminal device, the personal computer 6 can perform predetermined connection processing to access the Internet (not shown). As shown in FIG. 20, the personal computer 6 includes a CPU 6A, a RAM (Random Access).
ss Memory) 6B, ROM (Read Onl)
y Memory) 6C, a removable media interface (INF) 6D for exchanging data with the removable medium 5 as an external storage means, an interface processing unit 6J, and a communication exchanging data with a communication network (not shown). A VRAM (Video RA) storing characters and graphics corresponding to data to be displayed on the display 6G such as the interface 6E and the liquid crystal display panel.
M) A signal input by the user operating the 6F and the input unit 6H such as a keyboard and a mouse is transmitted to the CPU 6A.
The input interface (INF) 61 for communicating with the data bus is connected to the data bus BUS.

The CPU 6A executes various processes in accordance with the processing programs stored in the ROM 6C, and controls each circuit according to the processes. C
The PU 6A displays the various processing contents on the display unit 6G.

Here, when the user attaches the removable medium 5 to the removable medium interface 6D having the slot for the removable medium in the hope that the user wants to check the information about the English conversation, the detection contact of the removable medium 5 is changed to the contact of the removable medium interface 6D. The interface processing unit 6J detects a change in the signal level for detecting the removable medium (change from the logical “L” level to the logical “H” level) and sends an interrupt signal to the CPU 6A. Performs interrupt processing.

As a result, the CPU 6A detects that the removable medium 5 has been connected. Incidentally, the interface processing unit 6J is a processing block for performing a protocol process in accordance with the interface specification when transferring data to and from the removable medium 5. As a result, the interface processing unit 6J is ready to read data from the removable medium 5.

Incidentally, the removable media interface 6D is constituted by a serial interface.
It has at least three data lines. The first data line transmits a clock signal during data transmission, the second data line transmits a status signal required during data transmission, and the third data line transmits a clock signal.
These data lines serially transmit data to be written to or read from the removable medium 5.

In a state where the interface processing unit 6J can read data from the removable medium 5, the CPU 6 sets the personal computer 6 based on the target device information of the additional information recorded in the memory 5B of the removable medium 5. An access item (for example, “URL”) of each piece of additional information that can be used by the user and a LocalEvent-ID corresponding to each piece of the additional information
, Respectively (that is, the title name of the program scene), and read them out in VRA (Video RA).
M) A list is displayed on the display unit 6G via the 6F to urge selection.

In response to the list display, when the user selects, for example, the URL of the teaching material maker 17 via the input unit 6H, the input interface (INF) 61 informs the user of this.
Tell PU6A.

Thus, the CPU 6A reads out the URL selected by the user via the input unit from the memory 5B of the removable medium 5 and develops the same on the RAM 6B, whereby the URL is transmitted via the interface processing unit 6J and the communication interface 6E. Access the homepage corresponding to.

Thus, the homepage created by the teaching material maker 17 providing the URL as additional information is displayed on the display unit 6G of the personal computer 6, whereby the user can obtain detailed information on the teaching material maker 17.

In this state, the user can use the personal computer 6 to request a purchase by calling up, for example, an English pronunciation text posted on the homepage.

In this case, the personal computer 6
After performing a predetermined accounting process with a learning terminal device (not shown) of the teaching material maker 17 having the same configuration as that of the personal computer 6, the learning content provided by the learning material maker 17 from the learning terminal device (not shown) For example, an English pronunciation text (English pronunciation program) is downloaded, and at this time, the learning terminal device (not shown) of the teaching material maker 17 allows the user to simultaneously proceed with the English pronunciation text to be provided. A learning history file for leaving the situation as a learning history is also provided.

Accordingly, the personal computer 6 transfers the English pronunciation text and the learning history file provided by the learning material maker 17 from the learning terminal device (not shown) to the memory 5B of the removable medium 5 via the communication interface 6E and the removable media interface 6D. Remember.

Here, when the user performs a predetermined operation using the English pronunciation text, the CPU 6A of the personal computer 6 makes the English pronunciation text (English pronunciation program) and the learning history stored in the memory 5B of the removable medium 5 available. Reads the file and stores it in RAM6
B, the English pronunciation text D5
5 (English pronunciation program)
Various processes are executed. CPU 6A
Displays the various processing contents on the display unit 6G.

Thus, the user learns according to the contents displayed on the display section 6G of the personal computer 6. At this time, the CPU 6A of the personal computer 6 monitors the progress of the English pronunciation text (English pronunciation program) by the learning history file. For example, the English pronunciation text divided at each predetermined step is converted to a predetermined English pronunciation text. When the number of steps is exceeded, the time required from the beginning of the English pronunciation text to the step is calculated based on the clock of the personal computer 6, and this is used as learning history data as a learning history for the user learning with the English pronunciation text at that time. Is generated and stored in the memory 5B of the removable medium 5.
It is made to memorize.

Further, at this time, the CPU 6A accesses the learning terminal device (not shown) of the teaching material maker 17 on the display unit 6G via the VRAM 6F and displays the learning history file so as to receive the evaluation of the progress degree or the like. Urge the operation. On the other hand, when the user performs a predetermined operation of accessing the learning terminal device (not shown) of the teaching material maker 17 via the input unit 6H, the input interface 6I informs the CPU 6A of the operation.

Thus, the CPU 6A accesses the learning terminal device (not shown) of the teaching material maker 17 via the communication interface 6E. Further, when the user performs a predetermined operation for receiving an evaluation of the degree of progress or the like via the input unit 6H, the input interface 6I notifies the CP to that effect.
Tell U6A.

Thus, the CPU 6A reads the learning history data stored in the memory 5B of the removable medium 5, and transmits this to the learning terminal device (not shown) of the learning maker 17 via the communication interface 6E.

The learning terminal device (not shown) of the teaching material maker 17 is a personal computer operated by each user who has purchased the English pronunciation text based on a learning history diagnosis program stored in a memory (not shown) in advance. Each of the learning history data transmitted through a network such as the Internet is diagnosed, and evaluation data created as a result of the diagnosis is returned to the respective transmission sources. Evaluation data obtained as a result of diagnosing the transmitted learning history data is returned.

As a result, the personal computer 6
Receives the evaluation data supplied from the learning terminal device (not shown) of the teaching material maker 17 through the communication interface 6D, and displays the evaluation of the diagnosis result on the display unit 6G via the VRAM 6F. As a result, the user becomes more motivated to learn.

As described above, since the IRD 3 filters (rewrites) based on the identification code of the registration information and the identification code of the Target information, the personal computer 6 can handle each item of the additional information that can be handled. (URL) alone, whereby the personal computer 6 displays a list of each item (URL) of the read additional information on the display unit 6G.

Thus, the user simply attaches the removable medium 5 to the personal computer 6, and only the information that can be handled by the personal computer 6 is displayed on the display section 6G in an easy-to-select manner, and the information providing advertisement providing the desired URL is provided. Get detailed information about the Lord.
The user can also make a reservation, purchase a product, and the like by performing a predetermined charging operation based on detailed information (homepage) on the information providing advertiser who provided the URL.

As a second terminal device, a mobile phone 7
As shown in FIG. 21, CPU 7A, memory 7B, removable media interface (INF) 7C,
An interface processing unit 7N, a transmission / reception circuit (RF) 7E for transmitting / receiving signals to / from a telephone line (not shown), and an RF (Radio F) received by the transmission / reception circuit unit 7E.
MMI (M), which is an interface with a baseband processing unit 7D, a microphone 7G, and a speaker 7H that converts a signal to a baseband signal and converts a baseband signal to be transmitted into an RF signal.
an Machine Interface) section 7F,
A VRAM 7K storing characters and graphics corresponding to data to be displayed on a display unit 71 such as a liquid crystal display panel;
And the input unit 7J is connected to the data bus BUS.

The CPU 7A executes various processes in accordance with the processing programs stored in the memory 7B, and controls each circuit according to the processes. C
Various processing contents of the PU 7A are displayed on a display unit 71 composed of a liquid crystal panel or the like as necessary.

When the telephone number of the call destination desired by the user is input, the input unit J transmits data representing the telephone number to the CPU.
7A. As a result, the CPU 7A transmits a connection request to the call destination represented by the telephone number input by the user via the transmission / reception circuit unit 7E. At this time, a telephone line (not shown) connects the line according to the response of the called party.
When the line is connected, the transmission / reception circuit unit 7E converts the RF signal from the other party received via the antenna (not shown) into a baseband signal. Baseband processing unit 7D
Converts the converted baseband signal S7F into an MMI
By supplying the audio signal to the unit 7F, the received audio signal from the called party is output from the speaker 7H as audio.

When the user inputs sound through the microphone 7G, the MMI unit 7F supplies the input sound signal supplied from the microphone 7G to the baseband processing unit 7D, where the baseband signal is converted into an RF signal. I do. Then, the baseband processing unit 7D sends the converted RF signal to a telephone line (not shown) via the transmission / reception circuit unit 7E, thereby transmitting the RF signal to a destination connected to the line. Thus, the user using the mobile phone 7 can exchange conversations and various information with the other party.

Here, for example, the user desires to purchase clothes of a drama performer and purchases a removable medium 5 which is uniquely owned by the user in a removable medium interface 7 having a removable medium slot of the mobile phone 7.
C, the detection contact of the removable medium 5 is connected to the contact of the removable media interface 7C, so that the interface processing unit 7N changes the signal level for detection of the removable medium (from the logic “L” level to the logic “H”). "Change to the" level "), whereby an interrupt signal is sent to the CPU 7A to perform interrupt processing.

As a result, the CPU 7A detects that the removable medium 5 has been connected. Incidentally, the interface processing unit 7N is a processing block for performing protocol processing in accordance with the interface specifications when data is transferred to and from the removable medium 5. As a result, the interface processing unit 7N controls the removable medium 5
Is ready to read the additional information recorded in.

In a state where the interface processing section 7N can write or read data to or from the removable medium 5, the CPU 7A operates the interface processing section 7N and the connector 5A of the removable medium 5.
Of the additional information recorded in the memory 5B via the
Based on the get device information, only the access item (“TEL”) of each additional information that can be used by the mobile phone 7 and the title of the LocalEvent-ID corresponding to each of the additional information (namely, the title of the program scene) are read out. Are displayed in a list on the display unit 71 via the VRAM 7K to prompt the user to make a selection.

When the user selects a desired telephone number via the input unit 7J with respect to this list display, the fact is notified to the CPU 6A via the bus BUS.

As a result, the CPU 7A sends the transmission / reception circuit section 7 to the destination indicated by the telephone number entered by the user.
Send a connection request via E. At this time, a telephone line (not shown) connects the line according to the response of the called party. Thereby, the user can directly hear detailed information on clothes from the information providing advertiser who provided the additional information.

As described above, since the IRD 3 filters (rewrites) based on the identification code of the registration information and the identification code of the Target information, the portable telephone 7 can handle each item of the additional information that can be handled. (TE
L) and LocalEven corresponding to the respective additional information
Only the title of the t-ID can be read, whereby the mobile phone 7 can read each item (T) of the read additional information.
EL) and LocalEve corresponding to each of the additional information.
A list of nt-ID titles is displayed on the display unit 6G.

Thus, the user simply mounts the removable medium 5 on the mobile phone 7 and easily selects only information that can be handled by the mobile phone 7 as an option.
Is displayed, the detailed information can be directly heard from the information providing advertiser who provided the telephone number only by selecting the desired telephone number from the options.

As a third terminal device, the PDA 8
A predetermined connection process is performed to access the Internet (not shown). This PDA8 is
As shown in FIG. 22, CPU 8A, RAM (Rando)
m Access Memory) 8B, ROM (Re
ad Only Memory) 8C, a removable media interface (INF) 8 for exchanging data with the removable medium 5 as an external storage means.
D, interface processing unit 8J, communication network (not shown)
A communication interface 8E for exchanging data with the
A VRAM (Vi) storing characters and graphics corresponding to data to be displayed on a display unit 8G such as a liquid crystal display panel.
video RAM) 8F and an input interface (INF) for transmitting a signal input by a user operating an input unit 8H such as a keyboard or a mouse to the CPU 8A.
8I are connected to the data bus BUS.

The CPU 8A executes various processes in accordance with the processing programs stored in the ROM 8C, and controls each circuit according to the processes. C
The PU 8A displays the various processing contents on the display unit 8G.

Here, if the user inserts the removable media 5 into the removable media interface 8D having the slot for the removable media in the hope that the user wants to check the information about the music, the contact for detecting the removable media 5 is changed to the contact of the removable media interface 8D. The interface processing unit 8J detects a change in the signal level for detecting the removable medium (change from the logical "L" level to the logical "H" level) and sends an interrupt signal to the CPU 8A. Performs interrupt processing.

Thus, the CPU 8A detects that the removable medium 5 has been connected. Incidentally, the interface processing unit 8J is a processing block for performing a protocol process in accordance with the interface specification when transferring data to and from the removable medium 5. As a result, the interface processing unit 8J is ready to read data from the removable medium 5.

In this case, similarly to the personal computer 6, the PDA 8 uses the access item (for example, “URL”) of each available additional information and the L corresponding to each of the additional information.
Only the title of the ocalEvent-ID (that is, the title name of the program scene) is read out, and these are read out via the VRA (Video RAM) 6F to the display unit 6G.
In the list. Thus, the user simply attaches the removable medium 5 to the PDA 8, and only the information (URL) that can be handled by the PDA 8 is easily displayed as an option on the display unit 8G.
By simply selecting, detailed information on the information providing advertiser who provided the URL can be obtained.

The PDA 8 is a portable information terminal device as one feature of the PDA. This allows the user to compare the PDA 8 with the personal computer 6,
It can be easily transported. Thus, the user can check information on, for example, music recorded on the removable medium 5 at a desired time or at a desired place.

As a fourth terminal device, a navigation device 9 includes a CPU 9A and a RAM as shown in FIG.
(Random Access Memory) 9B,
A ROM (Read Only Memory) 9C, a removable media interface (INF) 9D for exchanging data with the removable medium 5 serving as an external storage means, an interface processing unit 9J, and a calculation of a position of an automobile equipped with the navigation device 9 and the like. Positioning information detection unit 9E for generating various information necessary for communication with interface 9F for sending and receiving, display unit 9 such as a liquid crystal display panel
A graphics controller 9G configured to generate data to be displayed on H, an input unit 9I such as a keyboard and a mouse, and a data reproduction unit 9K based on predetermined data from a positioning information detection unit 9E. Each of the audio controllers 9M that generates an audio signal S9M is connected to the data bus BUS.

The CPU 9A executes various processes in accordance with the processing programs stored in the ROM 9C, and controls each circuit according to the processes. C
The PU 9A displays the various processing contents on the display unit 9H via the VRAM 9G and, if necessary, the audio control unit 9
A sound is output from a speaker (not shown) according to a sound signal S9M generated in M.

When the user performs a predetermined operation of turning on the power via the input unit 9I, the positioning information detection unit 9E detects the azimuth information signal S9N obtained by detecting the terrestrial magnetism in the traveling azimuth detection unit 9N, and detects the angular velocity. The angular velocity information signal S9P obtained by detecting the angular velocity of the automobile in the section 9P, the traveling distance information signal S9Q obtained by detecting the traveling distance of the automobile in the traveling distance detecting section 9Q, and a plurality of GPS satellites in the GPS receiving section 9R. A radio wave obtained from a vehicle (not shown) is received via an antenna 9U, a positioning information signal S9R obtained by the reception, and a speed information signal obtained by detecting the speed of the vehicle by a vehicle speed detector 9T. In S9T, the traffic information receiving unit 9V constantly receives radio waves obtained from a road traffic communication station (not shown) via the antenna 9L and generates traffic information such as traffic congestion. The passing information signal S9V respectively sent to the interface 9F.

The interface 9F converts the input signals (azimuth information signal S9N, angular velocity information signal S9P, mileage information signal S9Q, positioning information signal S9R, speed information signal S9T, and traffic information signal S9V) into digital conversion processing. By applying, azimuth information data D9N,
Angular velocity information data D9P, traveling distance information data D9Q,
It generates positioning information data D9R, speed information data D9T, and traffic information data D9V, respectively, and uses these bus BUs.
The data is sent to the CPU 9A via S.

The CPU 9A reads out a predetermined program stored and held in the ROM 9C in advance, and based on the read out program, azimuth information data D9N, angular velocity information data D9P, traveling distance information data D9Q, positioning information data D9R, and speed information data. A predetermined calculation process is performed on D9T, and as a result, the current position (latitude, longitude, etc.) of the vehicle, the amount of movement of the vehicle from the departure point (or activation of the navigation device 9) to the current time, the speed of the vehicle and the vehicle Of the vehicle, and sends them to the graphic controller 9G as vehicle positioning data D9Z.

Here, the data reproducing unit 9K is a CD-ROM in which map information is recorded in the form of digital data, for example.
Is loaded in advance, and the CD is controlled under the control of the CPU 9A.
-Reproduce the ROM and transmit map information in a predetermined range including the position of the vehicle calculated by the above-described calculation to the graphic controller 9G as map information data D9Y.

The graphic controller 9G generates video data in frame units from the map information data D9Y so that a map composed of roads, intersections, and the like can be displayed on the screen of the display unit 9H, and generates the vehicle data based on the vehicle positioning data D9Z. Display data D9X obtained by generating vehicle position data representing the position and traveling direction of the vehicle
To the display unit 9H.

Thus, the display unit 9H displays a map on the screen, and displays a mark indicating the position and the traveling direction of the automobile on the map. Thus, the user who looks at the car navigation device 9 can visually recognize the current position of the vehicle and the traveling direction of the vehicle.

When the user performs a predetermined operation for searching for a route to a predetermined destination via the input unit 91, the CPU 9A reads a route search program from the ROM 9C and expands the program on the RAM 9B. As a result, a route search mode is set.

In this state, the CPU 9A controls the data reproducing section 9K to reproduce the CD-ROM, and
Selecting map information including the current vehicle position to the destination from the ROM and corresponding road information from the map data D9W, and among the selected map information and corresponding road information, traffic information supplied from the interface 9F; Based on the data, the map information and the corresponding road information that are the shortest time are searched by the route search program.

Then, the CPU 9A sends the retrieved map information and the corresponding road information, and the vehicle position data representing the position and traveling direction of the vehicle to the graphic controller based on the vehicle positioning data D9Z. The corresponding road information and the vehicle position data are combined and transmitted to the display unit 9H. Thus, the user who looks at the car navigation device 9 can search for a route to a predetermined destination.

Further, voice control circuit 9M provides data reproducing section 9 based on azimuth change data (generated when CPU 9A determines that the vehicle needs to change the heading).
M to reproduce the CD-ROM,
The audio information corresponding to the azimuth change data is read out of various audio information recorded in advance in M. As a result, the voice control circuit 25 outputs the voice signal S10 representing the notification sound such as right turn or left turn.
Is generated and sent to the speaker 27. Speaker 2
7 outputs a notification sound corresponding to the audio signal S10. Thus, the user driving the car, when the car needs to change the heading while the car is traveling along the route to the destination, by outputting a notification sound prior to this, The change in the traveling direction of the vehicle can be recognized audibly.

Here, when the user sets the removable medium 5
Is inserted into the removable media interface 9D having the removable media slot, the detection contact of the removable media 5 is connected to the contact of the removable media interface 9D, and the interface processing unit 9J changes the signal level for the detection of the removable media ( A change from the logic "L" level to the logic "H" level) is detected, and an interrupt signal is sent to the CPU 9A to perform an interrupt process.

As a result, the CPU 9A detects that the removable medium 5 has been connected. Incidentally, the interface processing unit 9J is a processing block for performing a protocol process in accordance with the interface specification when transferring data to and from the removable medium 5. As a result, the interface processing unit 9J is ready to read data from the removable medium 5.

Incidentally, the removable media interface 9D is constituted by a serial interface.
It has at least three data lines. The first data line transmits a clock signal during data transmission, the second data line transmits a status signal required during data transmission, and the third data line transmits a clock signal.
These data lines serially transmit data to be written to or read from the removable medium 5.

In a state where the interface processing unit 9J can read data from the removable medium 5, the CPU 9A transmits the target of the additional information recorded in the memory 5B via the interface processing unit 9J and the connector 5A of the removable medium 5. Based on the device information, only the item (“position”) of each additional information that can be used by the navigation device 9 and the title of the LocalEvent-ID (that is, the title name of the program scene) corresponding to each of the additional information are read out. The read items of the additional information are stored in the graphic controller 9.
A list is displayed on the display unit 9H via G to urge selection.

When the user selects a desired position (place: latitude and longitude) via the input unit 91 with respect to this list display, the user is notified to the CPU 9A via the bus BUS.

As a result, the CPU 9A reads the route search program from the ROM 9C, reads the position information (latitude and longitude) selected by the user from the memory 5B of the removable medium 5, and stores the program and the position information (latitude and longitude) in the RAM 9B. By expanding it above, it becomes the route search mode.

In this state, the CPU 9A controls the data reproducing section 9K to reproduce the CD-ROM, and includes from the current position of the automobile to the destination from the CD-ROM based on the position information (latitude and longitude). The map information and the corresponding road information are selected from the map data D9W. Based on the selected map information and the traffic information data supplied from the corresponding road information interface 9F, the shortest time map information and the corresponding road information are determined. Search by route search program.

Then, the CPU 9A sends the retrieved map information and the corresponding road information, and the vehicle position data representing the position and traveling direction of the vehicle to the graphic controller based on the vehicle positioning data D9Z. The corresponding road information and the vehicle position data are combined and transmitted to the display unit 9H. Thus, the user who looks at the navigation device 9 can search for a route to a predetermined destination.

As described above, since the IRD 3 filters (rewrites) based on the identification code of the registration information and the identification code of the Target information, the navigation device 9 can handle each of the additional information that can be handled. Only the item (positional information (longitude and latitude)) and the title of the LocalEvent-ID corresponding to each of the additional information (namely, the title of the program scene) can be read out, so that the navigation device 9 can read out the read out additional information. Are displayed on the display unit 9H (position information (longitude and latitude)).

Thus, the user simply mounts the removable medium 5 on the navigation device 9, and only the information that can be handled by the navigation device 9 is displayed on the display 9H so as to be easily selected, and the information providing the desired URL is provided. Detailed information about the provided advertiser can be obtained.

As described above, the additional information recorded on the removable medium 5 is not the detailed information itself specialized for each terminal device, but only the access information (trigger). The recording capacity for recording can be further reduced. Further, when the user records the access information (trigger) on the removable medium 5 which uniquely possesses the desired additional information, the user can acquire much more detailed information,
This allows the user to attach the removable medium 5 to the terminal device according to the recorded additional information at a desired time or at a desired place, and as a result, obtains detailed information specific to each terminal device. can do.

In the above configuration, the television broadcasting station 10 performs the additional information described in the EPG data in XML, and the information identifier is the television broadcasting station 1
0, IRD3 and each terminal device, it is possible to provide each information providing advertiser with additional information including various items. Therefore, the television broadcasting station 10 can also change the additional information according to the request of each information providing advertiser.

Here, the user attaches the removable medium 5 on which the additional information of the educational material maker 17 is recorded to an arbitrary terminal device, and the terminal device on which the removable medium 5 on which the additional information of the educational material maker 17 is recorded is attached. Accesses the learning terminal device in the facility of the teaching material maker 17 as the information providing advertiser via a predetermined network.

The learning terminal device in the facility of the teaching material maker 17 as the learning provider has the same configuration as the personal computer 6, and when data representing a purchase request is transmitted from any accessed terminal device. A learning history file is also provided that allows the user to leave the progress of the text as a learning history at the same time as the text that is the predetermined learning content.

The user presents predetermined learning contents using an arbitrary terminal device and performs learning according to the learning contents. A learning history file operated by the CPU of the arbitrary terminal device stores the learning history file at a predetermined timing. Is transmitted to a learning provider via a predetermined network as learning history information.

As a result, the user is further motivated by the evaluation data returned from the teaching material maker 17 as the learning provider.

According to the above configuration, the television broadcasting station 10, the IRD 3, and the multimedia terminal device 18
By providing an item that describes the learning related to additional information that can be added by the information identifier defined between, the learning provider has more access, and as a result, the learning provider has A learning history file is also provided that allows the user to leave the progress of the text as a learning history at the same time as the text that is the predetermined learning content.

In this case, the user presents predetermined learning contents using an arbitrary terminal device and performs learning accordingly, and the learning history file operated by the CPU of the arbitrary terminal device has a predetermined history. At a timing, the history of learning by the user is transmitted as learning history information to the learning provider via a predetermined network.

As a result, the user is further motivated by the evaluation data returned from the teaching material maker 17 as the learning provider.

(3) Other Embodiments In the above embodiment, additional information is added to the EPG data, and the EPG data to which the additional information is added is output by the multiplexer 23 to the audio encoded data and the video encoded data. In addition, a case has been described where multiplexed data is generated by performing time-division multiplexing processing, modulated, and transmitted as a broadcast wave from the transmitting device 15 to the IRD 3. However, the present invention is not limited to this. The video signal may be superimposed on the vertical blanking period, modulated, and transmitted from the transmitting apparatus to the IRD as a broadcast wave.

In this case, the IRD, which is the device on the receiving side,
In FIG. 24 in which the same reference numerals are given to the parts corresponding to FIG. 4, the broadcast wave of the channel on which the additional information is superimposed by the front end 30 is extracted from the broadcast wave received by the receiving antenna (not shown). Then, the video signal S50 is generated by demodulating the broadcast wave of the extracted channel, and the video signal S50 is generated by the RGB encoder 35 and the VBI (Vert).
ical blanking interval) to the slicer 50.

The VBI slicer 50 extracts the additional information D51 from the video signal S50, and
5 The RGB encoder 35 generates an additional information signal by converting the additional information D51 supplied from the VBI slicer 50 into an analog signal, and generates the additional information signal and the video signal S50 supplied from the front end 30 at this time. Is output to the television device 11 (FIG. 2), and the television device 11 displays on the monitor 12 a video image corresponding to the mixed signal S52 and a program screen with the icon 80 as shown in FIG. indicate.

As described above, when the additional information is superimposed on the vertical blanking period of the video signal, and is modulated and transmitted from the transmitting device to the IRD as a broadcast wave, the additional information of the program viewed by the user can be obtained. The presence or absence can be visually recognized by the icon 80.

In the above embodiment, the EPG
E in which additional information is added to the data and the additional information is added
A description will be given of a case where multiplexed data is generated by performing time-division multiplexing processing on PG data together with audio coded data and video coded data by a multiplexer 23, and this is modulated and transmitted from a transmitting apparatus to the IRD 3 as a broadcast wave. However, the present invention is not limited to this, and the additional information may be embedded in the video signal or the audio signal as digital watermark information.

In this case, the transmitting device 1 which is the transmitting device
5 (FIG. 3), the additional information is embedded in the video signal of the television program created by the television broadcasting station 10, and the video signal in which the additional information is embedded is modulated by the modulator 2.
4 (FIG. 3) is provided with an additional information embedding section 58 adapted to be transmitted.

As shown in FIG. 26, the additional information embedding section 58 converts the video signal S51 input via the terminal 51 into an FFT (Fast Fourier Transform).
) is received by the processing circuit 53. The FFT processing circuit 53 converts the video signal S51 from the time domain to the frequency domain to generate a frequency spectrum S53, and outputs the frequency spectrum S53 to the variable filter circuit 55.

Further, the additional information embedding section 58 receives the additional information (additional information) S 52 inputted via the terminal 52 to the multiplication circuit 54. The multiplication circuit 54 multiplies the additional information S52 by a PN (Pseudo Noise: pseudo-random noise) sequence signal S57 having a small amplitude to obtain the additional information S5.
2 is spread spectrum over a wide frequency band to generate an additional information signal S54 having a minute level of amplitude.
54 is output to the variable filter circuit 55.

The variable filter circuit 55 has a filter characteristic according to the frequency spectrum S53 and the additional information signal S54.
Is filtered to generate an additional information signal S55, which is output to the addition circuit 56.

The addition circuit 56 has the additional information S51 from the terminal 51 and the additional information signal S5 from the variable filter circuit 55.
5 is added to the video signal S3 with additional information.
1 is generated and sent to the modulator 24 (FIG. 3).

Incidentally, the additional information embedding section 58 determines whether the signal input via the terminal 51 is an audio signal or not.
6, the same processing as described above is performed.

On the other hand, in the IRD 3 (FIG. 4) which is a device on the receiving side, additional information is extracted and the extracted additional information is sent to the RGB encoder 35 (FIG. 4). Is provided. In this case, as shown in FIG. 23, the additional information extracting unit 101 extracts a broadcast wave of a channel on which the additional information is superimposed by the front end 30 from broadcast waves received by a receiving antenna (not shown). Then, a video signal S75 with additional information is input by demodulating the broadcast wave of the extracted channel.

The additional information extracting section 101 outputs the input additional information-added video signal S75 to the FFT processing section 70 and the variable filter 71.

[0202] The FFT processing circuit 70 converts the video signal S75 with additional information from the time domain to the frequency domain to generate a frequency spectrum S70.
Output to The variable filter 71 has a filter characteristic corresponding to the frequency spectrum S70,
The additional information S71 included in 70 is extracted, and the extracted additional information S71 is output to the multiplying circuit 72.

The multiplying circuit 72 multiplies the additional information S71 by the same PN sequence code S57 as that on the transmitting side to generate the original additional information S72 from which the PN sequence code has been removed, and outputs this to the RGB encoder 35 (FIG. 4). To send to.

The RGB encoder 35 generates an additional information signal by converting the additional information S72 supplied from the additional information extraction unit 101 into an analog signal, and supplies the generated additional information signal and the supplied additional information signal from the front end 30 at this time. A mixed signal obtained by mixing the video signal with the video signal is output to the television device 11 (FIG. 2), and the television device 11 displays a program screen with an icon 80 as shown in FIG. indicate.

By embedding the additional information in the video signal or the audio signal as the additional information in this manner, the presence or absence of the additional information of the program viewed by the user can be visually recognized by the icon 80 on the receiving side. .

Further, in the above-described embodiment, a case has been described in which a stick-shaped portable recording medium (removable medium) having a built-in IC memory is used. However, the present invention is not limited to this. For example, a CD-R ( Compact
Various recording media, such as a Disk Recordable and a hard disk drive, and various shapes may be used. In short, various types of recording media can be applied as long as the recording media can be uniquely possessed by the user.

Further, in the above-described embodiment, a case has been described in which the removable medium 5 uniquely owned by the user is mounted on the IRD 3, personal computer 6, mobile phone 7, PDA 8, and navigation device 9 as terminal devices. The present invention is not limited to this, and can be widely applied to various terminal devices such as a video tape recorder.

Further, in the above-described embodiment, a case has been described in which XML is used as a language for describing additional information. However, the present invention is not limited to this, and for example, SGML (Sy
nchronized Multimedia Int
In other words, a language that can be described in a variable length can be widely applied.

In the above embodiment, the IRD
3 has been described in the case of recording in the memory 5B of the removable medium 5, but the present invention is not limited to this, and for example, a device such as a television device that can receive broadcast waves or a device that can receive the broadcast waves The present invention can be applied to a device that is connected through a connection unit.

[0210] In the above-described embodiment, the case has been described where the television broadcast station 10 distributes broadcast waves. However, the present invention is not limited to this. For example, various other broadcast stations such as radio stations, and the like. Can be widely applied to various broadcasting systems (for example, terrestrial broadcasting).

Further, in the above-described embodiment, the EP
Although the case where the G generation unit 25 is provided in the transmission device 15 has been described, the present invention is not limited to this, and the additional information management server 16
May be provided. In this case, effects similar to those of the above-described embodiment can be obtained.

[0212]

As described above, according to the present invention, the information transmitting apparatus distributes an arbitrary number of unit information related to learning as provided information by describing the provided information in a variable length.
The information receiving device selects arbitrary unit information from the distributed unit information and records the selected unit information in a usable state on a predetermined recording medium, thereby enabling information provided by the broadcasting station to be effectively used. Available.

[0213]

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of an information providing system according to the present invention.

FIG. 2 is a block diagram showing an overall configuration of an example of an information providing system according to the present invention.

FIG. 3 is a block diagram illustrating a configuration of a transmission device.

FIG. 4 is a block diagram illustrating a configuration of a receiving device (IRD).

FIG. 5 is a schematic diagram showing an EPG data structure.

FIG. 6 is a schematic diagram illustrating a file structure of additional information.

FIG. 7 shows Event-ID and LocalEvent-
FIG. 4 is a schematic diagram illustrating a relationship between an ID and each item of additional information.

FIG. 8 is a sequence chart showing an additional information entry procedure.

FIG. 9 is a block diagram illustrating a configuration of an additional information management server.

FIG. 10 is a schematic diagram illustrating a display example of an additional information entry screen.

FIG. 11 is a flowchart illustrating an EPG data generation processing procedure;

FIG. 12 is a schematic diagram illustrating an example of a file structure of EPG data.

FIG. 13 is a schematic diagram illustrating an example of a file description of EPG data.

FIG. 14 is a block diagram illustrating a configuration of a removable medium.

FIG. 15 is a schematic diagram illustrating a display example of an additional information selection screen.

FIG. 16 is a flowchart illustrating an additional information recording processing procedure.

FIG. 17 is a schematic diagram illustrating a display example of a registration screen.

FIG. 18 is a schematic diagram illustrating a display example of a search designation screen.

FIG. 19 is a schematic diagram illustrating a display example of an additional information selection screen.

FIG. 20 is a block diagram illustrating a configuration of a personal computer.

FIG. 21 is a block diagram illustrating a configuration of a mobile phone.

FIG. 22 is a block diagram showing a configuration of a PDA.

FIG. 23 is a block diagram illustrating a configuration of a navigation device.

FIG. 24 is a block diagram showing a configuration of an IRD.

FIG. 25 is a schematic diagram illustrating a display example of a program screen.

FIG. 26 is a block diagram illustrating a configuration of an additional information embedding unit.

FIG. 27 is a block diagram illustrating a configuration of an additional information extraction unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Information providing system, 2 ... Broadcasting station, 3 ... Receiving device (IRD), 4 ... Information providing advertiser, 5 ... Removable media, 5A ... Connector, 5B ... Memory, 6
...... Personal computer, 6A, 7A, 8A, 9
A, 36 ... CPU, 6D, 7C, 8D, 9D, 43 ...
… Removable media interface, 6J, 7
N, 8J, 9J, 44 Interface processing unit, 7
... Mobile phone, 8 PDA, 9 Navigation device, 11 Television device, 15 Transmitting device, 1
6 Additional information management server 23 Multiplexer
25: EPG generator, 31: demultiplexer, 4
1 ... flash memory, 58 ... additional information embedding section, 101 ... additional information extraction section.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] June 8, 2000 (2006.8.8)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 7

[Correction method] Change

[Correction contents]

FIG. 7

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Claims (7)

[Claims] 1. An information providing system for distributing various kinds of provided information from an information transmitting device to an information receiving device, wherein the information transmitting device describes the provided information in a variable length, thereby providing an arbitrary information related to learning as the provided information. The information receiving device selects arbitrary unit information from the distributed unit information, and records the selected unit information as a usable state on a predetermined recording medium. An information providing system, characterized in that: 2. The information providing system includes a learning terminal device that presents predetermined learning contents to a user based on the unit information by reading the unit information from the recording medium on which the unit information is recorded, 2. The information providing system according to claim 1, wherein the user having the recording medium performs desired learning based on the presentation of the learning content by the learning terminal device. 3. 3. The information providing system according to claim 1, wherein the learning terminal device transmits a history of the learning performed by the user to a learning provider via a predetermined network as learning history information. 4. An information receiving apparatus for receiving provided information consisting of an arbitrary number of unit information described in a variable length, wherein said selecting means selects any unit information from said distributed learning unit information; Recording means for recording the selected unit information in a usable state on a predetermined recording medium. 5. The information receiving apparatus according to claim 4, wherein said selecting means extracts and selects, from a predetermined television program broadcast wave, the unit information distributed and superimposed on the broadcast wave. . 6. An information receiving method for receiving provided information composed of an arbitrary number of unit information described in a variable length, wherein the step of selecting arbitrary unit information from the distributed unit information related to learning; Recording the obtained unit information in a usable recording state on a predetermined recording medium. 7. The method according to claim 6, wherein, in the step of selecting the unit information, the unit information distributed and superimposed on the broadcast wave is extracted and selected from a predetermined television program broadcast wave. Information receiving method described.