JPH1166085A - Information transmission device and reception device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to read desired information only by simple selection through use of classification hierarchy by transmitting a classification hierarchy tree of information to a reception terminal and adding classification information in the classification tree to transmission information and transmitting it. SOLUTION: It is judged whether a concept tree is to be transmitted or not. When it is judged to be transmitted, the concept tree stored in a concept tree database 102 is transmitted. At that time, an identifier showing that the data constitute a concept tree is added to the concept tree in a concept tree transmission part 105 and coding and encoding for error correction are executed. Data are modulated into signals which are made into a bit stream fitted to satellite broadcasting and are transmitted from a transmission antenna to a broadcasting satellite. In a classification information addition part 103, classification information in the concept tree is added to transmission information stored in an information database 101. Information with the classification identifier is transmitted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for transmitting information and a classification hierarchy of information from an information transmitting apparatus to an information receiving apparatus by using a digital broadcasting system or a public telephone line, and receiving the information by the information receiving apparatus; The present invention relates to an apparatus for performing classification by using the classification hierarchy and displaying the result to a user.

[0002]

2. Description of the Related Art Conventionally, moving pictures, still pictures,
Information such as voices, characters, and programs are exchanged.

[0003] However, in either case of the Internet or personal computer communication, the information receiving side accesses the information transmission source and selects and downloads (downloads) necessary information from the storage device of the transmission source. And the recipient cannot obtain the information without taking any action on the source of the information.

That is, information cannot be obtained by a simple operation such as simply selecting a channel as in a general television broadcast. As described above, an information communication system that requires an operation on the receiver side cannot be used as information communication means for publicity and publicity.

[0005] In response to such a problem of multimedia information communication, in recent years, a large number of recipients who want to receive information are accessed from a source of the information through a public line, and the information on the recipient side (each household) is transmitted. Regardless of the necessity or non-necessity, the information is sent to the receiver side and stored in the receiver side, and the receiver side selects the display operation of the data storage device (that is, the data receiving device), for example, by selecting the display operation. An information communication system that displays information on a screen by the same operation as the selection of a broadcast channel has been considered.

[0006] Further, with the development of digital technology, a digital broadcasting system in which various kinds of information including a broadcasting signal are digitized has been researched and developed in the broadcasting field. In such a system, an integrated digital system (ISDB)
(Referred to as an IntegratedServicesDigitalBroadcasting) system). In the ISDB system, multimedia information is digitized and integrated and multiplexed for transmission.
In addition to these pieces of information, additional information used as control information on the receiving side can be transmitted at the same time.

Therefore, by using the above-described system, a service for transmitting various information such as news, sports, weather forecast, leisure information, and real estate information can be realized.

[0008]

However, when a large amount of information is transmitted due to an increase in the communication capacity of the public line or the use of a means having a wide bandwidth such as digital broadcasting, the receiving apparatus transmits the information. When browsing, there is a problem that a user cannot efficiently search for desired information.

In this case, if information for classification is added to the information, the receiving device can perform classification using the information. As disclosed in Japanese Patent Application Laid-Open No. 9-65297, a method of using a genre and a keyword to which the information belongs as additional information has been considered. However, the user is forced to perform a complicated operation such as inputting a keyword. Not very appropriate. In addition, there is a problem that desired information cannot be easily obtained unless the user properly selects and inputs a keyword.

Therefore, the present invention transmits a classification hierarchy tree of information to a receiving terminal, adds the classification information in the classification tree to the transmission information, and transmits the transmission information, so that the reception side can classify the reception information. It is an object of the present invention to allow a user to browse desired information simply by making a simple selection using the classification hierarchy.

[0011] It is another object of the present invention to perform classification according to received information on the receiving apparatus side by using a plurality of classification hierarchical trees, thereby enabling a user to browse desired information more efficiently. .

[0012]

According to an aspect of the present invention, there is provided an information transmitting apparatus for storing various kinds of information such as video, audio, and data. Classification tree storage means for storing one or more classification trees representing classification hierarchies for information features, and classification information addition means for adding classification information in each classification tree to information stored in the information storage means And information transmitting means for transmitting the information to which the classification information has been added by the classification information adding means, and classification tree transmitting means for transmitting the classification trees stored in the classification tree storage means.

With this configuration, a classification tree used for classification of transmission information and information to which classification information in the classification tree is added are transmitted for the purpose of enabling information classification according to the user on the receiving side.

According to a second aspect of the present invention, there is provided an information receiving apparatus, comprising: a classification tree receiving means for receiving one or more classification trees representing a classification hierarchy for characteristics of various types of information such as video, audio, and data; The information processing apparatus includes an information receiving unit that receives information to which classification information is added in the classification tree, a classification tree storage unit that stores the received classification tree, and an information storage unit that stores the received information.

With this configuration, various kinds of received information are classified and stored using the received classification tree.

According to a third aspect of the present invention, there is provided an information receiving apparatus, wherein monitor means for displaying selection items and selection information using a classified structure; display control means for controlling the monitor means; Key input means for selecting and inputting.

With this configuration, it is possible to browse desired information simply by making the user make a simple selection using the classification hierarchy.

In the information receiving apparatus according to the present invention, user history storage means for storing a history of information selected by a user, and history information stored in the user history storage means are used. And a storage selecting means for selecting whether to store the received information by using the classification tree to which the score is added by the scoring means.

With this configuration, the storage of information is determined from the selection history of the user. In the information receiving apparatus according to the present invention as set forth in claim 5, a user history storing means for storing a history of information selected by a user, and a classification tree using history information stored in the user history storing means. And a data deleting means for deleting stored information by using the classification tree to which the score is added by the scoring means.

With this configuration, it is determined that information is to be deleted from the selection history of the user. In the information receiving apparatus according to the present invention as set forth in claim 6, a user history storing means for storing the history of the information selected by the user, and a classification tree using the history information stored in the user history storing means. And a classification tree reconstructing means for reconstructing a classification tree using the points added by the scoring means.

With this configuration, the concept tree is reconstructed from the selection history of the user.

[0022]

DETAILED DESCRIPTION OF THE INVENTION

(Embodiment 1) Hereinafter, an embodiment of the first invention will be described with reference to the drawings.

As one embodiment of the first invention, an information transmitting apparatus using satellite digital broadcasting is shown. FIG. 1 is a system configuration diagram according to the first embodiment of the present invention. FIG.
101, an information database for storing various information such as video, audio, data, etc., 102, a concept tree database for storing one or more concept trees representing a conceptual classification hierarchy for the characteristics of the various information, 103, A classification information adding unit that adds the classification information in the concept tree to the information stored in the information database 101; 104, an information transmission unit that transmits information to which the classification information is added; 105, a concept tree transmission unit that transmits the concept tree It is.

Each of the above-mentioned constituent elements includes an information database 101 as an information storage unit of the present invention, a concept tree database 102 as a classification tree storage unit, a classification information addition unit 103 as a classification information addition unit, and an information database. The transmitting unit 104 corresponds to an information transmitting unit, and the concept tree transmitting unit 105 corresponds to a classification tree transmitting unit.

The operation of the information transmitting apparatus configured as described above will be described with reference to the flowchart of FIG.

In step 201, it is determined whether or not to transmit a concept tree. The concept tree is transmitted at regular intervals. This is where the concept tree is stored on the receiving side,
Also, because of its nature, it is not updated frequently. Therefore, transmission is performed at intervals using a timer or the like.

In step 202, the concept tree stored in the concept tree database 102 is transmitted. The concept tree represents a conceptual hierarchy of information as shown in FIG.
FIG. 3 is a conceptual tree relating to the layout and rent of real estate information. An identifier indicating that the data is a concept tree is added to the concept tree in the concept tree transmission unit 105, and coding for error correction and coding are performed. Then, after being converted into a bit stream and modulated into a signal suitable for a broadcast satellite (for example, an ISDB broadcast signal), the signal is transmitted from a transmission antenna (parabolic antenna) to the broadcast satellite.

The concept tree is not for specific information like the real estate information shown in FIG. 3, but may be a general-purpose tree like a concept tree for news information as shown in FIG.

In step 203, the classification information adding unit 10
In step 3, the classification information in the concept tree is added to the transmission information stored in the information database 101. The information to be transmitted is divided into information units called channels. For example, a news channel or a real estate information channel. Information of each channel is added with a channel identifier, an identifier of a concept tree relating to the information, and a classification identifier in the concept tree. For example, "Layout 3LD
In the case of real estate information of “K, rent 100,000 yen”, “3LDK” and “80,000 yen to less than 120,000 yen” are added as classification identifiers. As the classification identifier, the label of the concept tree may be added as it is, or may be coded.

In step 204, the information to which the classification identifier has been added in step 203 is transmitted. The transmission procedure is
The same one used for transmitting the concept tree in step 202 is used. In that case, an identifier indicating that the data is information is added. In satellite digital broadcasting, it may occur with a relatively high probability that transmission cannot be performed correctly due to the weather or the like. Therefore, the same information may be repeatedly transmitted.

As described above, the concept tree and the information are transmitted. This procedure is repeated.

In the first embodiment, satellite digital broadcasting is used as communication means.
A TV line or terrestrial broadcasting may be used. Further, different communication means may be used in the information transmitting unit and the concept tree transmitting unit. Further, the information transmitting unit and the concept tree transmitting unit may be realized as one unit without being separated.

(Embodiment 2) Next, an embodiment of the second invention will be described with reference to the drawings.

As an embodiment of the second invention, an information receiving apparatus using satellite digital broadcasting is shown. FIG. 5 is a system configuration diagram according to the second embodiment of the present invention. FIG.
, 501 is a concept tree receiving unit that receives one or more concept trees representing a conceptual classification hierarchy for features of various types of information such as video, audio, and data, and 502 is classification information in the concept tree received by the concept tree receiving unit. Is a concept tree database that stores the concept tree received by the concept tree receiving unit 501, and 504 is an information database that stores the information received by the information receiving unit 502.

Each of the above-mentioned components has a concept tree receiving unit 501 as a classification tree receiving unit of the present invention, an information receiving unit 502 as an information receiving unit, and a conceptual tree database 50 as an example.
Reference numeral 3 corresponds to a classification tree storage unit, and the information database 504 corresponds to an information storage unit.

The operation of the information receiving apparatus configured as described above will be described with reference to the flowchart of FIG.

At step 601, the received data is decoded. The identifier added to the decrypted data is determined, and the process proceeds to step 602 in the case of a concept tree, and to step 603 in the case of information.

In step 602, a concept tree is received. The received concept tree is decoded by the concept tree receiving unit 501 and passed to the concept tree database 503. In the concept tree database 503, management is performed using an identifier added to the concept tree.

In step 603, information is received.
The received information is decoded by the information receiving unit 502 and passed to the information database 504. In the information database, the concept tree stored in the concept tree database 503 is associated with the leaf node of the concept tree and stored using the identifier of the concept tree added to the information and the classification identifier of the concept tree.

As described above, the concept tree and the information are received. This procedure is repeated.

In the second embodiment, satellite digital broadcasting is used as communication means.
A TV line or terrestrial broadcasting may be used. Further, different communication means may be used in the information receiving unit and the concept tree receiving unit. Further, the information receiving unit and the concept tree receiving unit may be realized as one unit without being separated.

(Embodiment 3) Next, an embodiment of the third invention will be described with reference to the drawings.

As an embodiment of the third invention, an information receiving apparatus using satellite digital broadcasting is shown. FIG. 7 is a system configuration diagram according to the third embodiment of the present invention. FIG.
Includes the same parts as those of the system configuration of the second embodiment of the invention shown in FIG. 5, the same parts are denoted by the same reference numerals, and the description thereof will be omitted. Reference numeral 701 denotes a monitor unit that displays selection items and selection information using the classified structure, 702 denotes a display control unit that controls the monitor unit 701,
A key input unit 703 selects and inputs a selection item.

Each of the above-mentioned components has a monitor section 701 as a monitor means of the present invention and a display control section 70 as a monitor means.
2 corresponds to a display control unit, and the key input unit 703 corresponds to a key input unit.

The operation of the information receiving apparatus configured as described above will be described with reference to the flowchart of FIG.

Steps 801 to 803 perform the same processing as 601 to 603 of the second embodiment of the present invention.

In step 804, the received channel is displayed, and the user's selection is accepted. The display control unit 702 outputs to the monitor unit 702 using the channel identifier of the concept tree stored in the concept tree database 503. After that, the selection from the key input unit 703 by the user is accepted.

At step 805, the concept tree belonging to the channel selected by the user is displayed, and the selection of the user is accepted. The display control unit 702 searches for a concept tree stored in the concept tree database 503 using the identifier of the channel selected in step 804, and displays the label on the monitor unit 703. For example, when the user selects “real estate information channel” in step 804, “layout”, “rent”, “age”, etc. are displayed. After that, the selection from the key input unit 703 by the user is accepted.

In step 806, the category items one level below the concept tree selected by the user are displayed, and the user's selection is accepted. The display control unit 702 displays the category items one level below the concept tree selected in step 805. For example, when the concept tree relating to rent shown in FIG. 3 is selected, “less than 120,000 yen” and “120,000 yen or more” are displayed. After that, the selection from the key input unit 703 by the user is accepted.

In step 807, it is determined whether the classification item selected by the user is a leaf node of the concept tree. If it is a leaf node, the process proceeds to step 808; otherwise, the process returns to step 806.

At step 808, the information selected by the user is displayed. The display control unit searches the information database 504 for information linked to the leaf node of the concept tree selected in step 806, and displays the information on the monitor unit 701.

As described above, it is possible to browse desired information simply by making the user make a simple selection using the classification hierarchy.

In the third embodiment, satellite digital broadcasting is used as communication means.
A TV line or terrestrial broadcasting may be used. Further, different communication means may be used in the information receiving unit and the concept tree receiving unit. Further, the information receiving unit and the concept tree receiving unit may be realized as one unit without being separated.

(Embodiment 4) Next, an embodiment of the fourth invention will be described with reference to the drawings.

As an embodiment of the fourth invention, an information receiving apparatus using satellite digital broadcasting is shown. FIG. 9 is a system configuration diagram according to the fourth embodiment of the present invention. FIG.
Includes the same parts as those of the system configuration of the third embodiment of the invention shown in FIG. 7, the same numbers are assigned to the same parts, and the description will be omitted. Only different parts will be described. Reference numeral 901 denotes a user history database that stores the history of information selected by the user, and reference numeral 902 denotes a score that scores the concept trees stored in the concept tree database 503 using the history information stored in the user history database 901. An attachment unit 903 is a storage selection unit that selects whether to store the received information using the concept tree to which the score is added.

Each of the above-mentioned components corresponds to the user history database 901 of the user history accumulating unit, the scoring unit 902 corresponds to the scoring unit, and the accumulation selecting unit 903 corresponds to the accumulation selecting unit. I do.

The operation of the information receiving apparatus configured as described above will be described with reference to the flowchart of FIG.

Steps 1001 to 1003 are:
The same processing as 801 to 803 of the third embodiment of the invention is performed.

In step 1004, the accumulation selection unit 903
In, a selection is made as to whether the information received in step 1003 is to be stored in the information database 504. The selection is performed as follows. First, a concept tree stored in the concept tree database 503 is selected by using the concept tree identifier added to the information and the classification identifier of the concept tree, and the concept tree is linked with the classification identifier of the concept tree. Get the memorized score. If the score is equal to or larger than a predetermined evaluation value, the information is accumulated, and if not, the information is not accumulated. It is assumed that a predetermined initial value is given to the leaf node of each concept tree when the concept tree is accumulated and accumulated in the concept tree database, and the initial value is equal to or larger than the evaluation value.

In steps 1005 to 1009, the same processing as in steps 804 to 808 of the third embodiment of the present invention is performed.

In step 1010, the user history information is updated. The user history information is stored in the user history database 908. As the information, as shown in FIG. 11, the number of times of reference and the reference time are accumulated for each concept tree and classification identifier to which the information selected by the user belongs.

In step 1011, the leaf nodes of the concept tree stored in the concept tree database 503 are scored using the information stored in the user history database 908. The score is an average of the scores of the information included in the leaf node. The score of the information is the sum of the score based on the user's reference and the score based on the user's reference time. The score by the user's reference uses a decreasing function with respect to the ratio of the reference of the information in all the information. This is because when the reference ratio of the user is small, the meaning of the reference is large, and when the reference ratio is large, the reference does not make much sense. For example, a function f = 1-a is used as a function for calculating the score. Here, it is assumed that a is obtained by dividing the reference count of the information by the reference count of all the information. In addition, the score according to the user's reference time uses an increasing function relating to time.
This is because the interest of the user is considered to be proportional to the reference time. For example, a function g (t) = a * (t−v + s) / (2 * s) is used as a function for calculating the score. Here, a is obtained by dividing the number of times of reference of the information by the number of times of reference of all information, v and s are respectively the average value and the standard deviation of the reference time so far, and g (t)> a when g (t)> a When t) = a, g (t) <a-1, g (t) = a-1. Note that any function may be used as long as the above condition is satisfied.

As described above, the storage of information is determined using the selection history of the user. In the fourth embodiment, satellite digital broadcasting is used as communication means, but public telephone lines, CATV lines, and terrestrial broadcasting may be used. Further, different communication means may be used in the information receiving unit and the concept tree receiving unit. Further, the information receiving unit and the concept tree receiving unit may be realized as one unit without being separated.

(Embodiment 5) Next, an embodiment of the fifth invention will be described with reference to the drawings.

As an embodiment of the fifth invention, an information receiving apparatus using satellite digital broadcasting will be described. FIG. 12 is a system configuration diagram according to the fifth embodiment of the present invention. FIG. 12 includes the same parts as those of the system configuration of the fourth embodiment of the invention shown in FIG. 9, and therefore, the same parts are denoted by the same reference numerals and the description thereof will be omitted, and only different parts will be described. Reference numeral 1201 denotes an information database 5 using a concept tree to which points are added.
The information deletion unit deletes the information stored in the information storage unit 04.

In the above components, the information deleting unit 1201 corresponds to the information deleting unit of the present invention.

The operation of the information receiving apparatus configured as described above will be described with reference to the flowchart of FIG.

Steps 1301 to 1308 are
Step 801 to step 80 of the third embodiment of the invention
The same processing as in step 8 is performed.

Steps 1309 and 1310
Respectively correspond to Step 101 of the fourth embodiment of the invention.
The same processing as 0 and 1011 is performed.

At step 1311, it is determined whether or not to delete information. As the determination, deletion is performed when the ratio of the current storage capacity to the maximum storage capacity of the information database exceeds a predetermined value. For example, when it exceeds 90%, deletion is performed.

In step 1312, information stored in the information database 504 is deleted. Deletion is performed in ascending order of scores given in step 1310.
If there is information with the same score, the classification to which the information belongs is deleted from the one with the lowest score. Further, the number of deletions is performed until a certain ratio is reached. For example, it is conceivable that the process is performed until the storage capacity reaches 50%.

As described above, the information is deleted using the selection history of the user. The criterion for information deletion is:
The case where the number of pieces of information belonging to the concept tree classification exceeds a predetermined value or the case where the user instructs may be used.

As a method of deleting information, a method may be used in which information belonging to nodes having a smaller number of points is deleted in order based on the number of leaf nodes of the concept tree.

In the fifth embodiment, satellite digital broadcasting is used as the communication means.
A TV line or terrestrial broadcasting may be used. Further, different communication means may be used in the information receiving unit and the concept tree receiving unit. Further, the information receiving unit and the concept tree receiving unit may be realized as one unit without being separated.

(Embodiment 6) Next, an embodiment of the sixth invention will be described with reference to the drawings.

As an embodiment of the sixth invention, an information receiving apparatus using digital satellite broadcasting is shown. FIG. 14 is a system configuration diagram according to the sixth embodiment of the present invention. FIG. 14 includes the same parts as those of the system configuration of the fourth embodiment of the invention shown in FIG. 9, and therefore, the same parts are denoted by the same reference numerals and description thereof will be omitted. Only different parts will be described. Reference numeral 1401 denotes a concept tree reconstructing unit that reconstructs the concept tree stored in the concept tree database using the added score.

In the above components, the concept tree reconstructing unit corresponds to the classification tree reconstructing means of the present invention.

The operation of the information receiving apparatus configured as described above will be described with reference to the flowchart of FIG.

Steps 1501 to 1511 are:
The same processing as steps 1001 to 1011 in the fourth embodiment of the invention is performed.

In step 1512, step 1511
It is determined whether or not to reconstruct the tree by using the score of the concept tree updated in the above. It is assumed that the score added to the concept tree is calculated using the calculation formula described in the fourth embodiment of the present invention. If the updated score exceeds a predetermined value (for example, 0.8), the process shifts to step 1513 to reconstruct the concept tree. Otherwise, end.

At step 1513, the concept tree is reconstructed. The concept tree determined to be reconfigured in step 1512 is, for example, as shown in FIG. In FIG. 16, when the score for the classification item of “Hanshin” exceeds a predetermined value, the user is considered to have a high degree of interest in the information on “Hanshin”. Therefore, so that the classification item can be easily selected, the "baseball" to which "Hanshin" belongs
Raise the hierarchy. That is, the concept tree is reconstructed as shown in FIG. By doing so, the user can easily select a category item having a high degree of interest. For the classification items having a higher hierarchy, the added score is returned to the initial value in order to prevent the hierarchy from being raised in a chain.

As described above, it is easy to select a classification item having a high degree of user interest from the score added to the classification item.

In the sixth embodiment, the process of raising the level of a classification item having a high score has been described. However, after raising the hierarchy, it is determined that the item having a low score has no interest in the classification item. Then, a process of lowering the hierarchy may be performed again.

Further, although the satellite digital broadcasting is used as the communication means, a public telephone line, a CATV line, and a terrestrial broadcasting may be used. Further, different communication means may be used in the information receiving unit and the concept tree receiving unit. Further, the information receiving unit and the concept tree receiving unit may be realized as one unit without being separated.

In all of the embodiments described above, each component may be configured as software or as dedicated hardware.

The information transmission device and the information transmission device may be manufactured separately and connected to a monitor, a speaker, and the like. However, the information transmission device may be integrated into a TV, a facsimile, a personal computer, or the like. Is also possible.
In the case of being incorporated integrally, a program in the case of being configured as software may be recorded in an information recording device such as a hard disk or a semiconductor memory.

Further, if this program itself is transmitted using a communication network such as the Internet, an existing personal computer or TV can be upgraded to a personal computer or TV having the ability to carry out the present invention.

[0088]

As described above, according to the information transmitting apparatus and the receiving apparatus of the present invention, the classification hierarchical tree of information is transmitted to the receiving terminal, and the classification information in the classification tree is added to the transmission information and transmitted. As a result, it is possible to classify received information on the receiving side, and to make it possible for a user to browse desired information simply by making a simple selection using the classification hierarchy.

Also, by using a plurality of classification hierarchical trees, the receiving device can perform classification according to the received information, thereby enabling the user to browse desired information more efficiently. .

Further, by accumulating the history of the information selected by the user, it is possible to judge whether to accumulate or delete the information by using the history, or to reconstruct the concept tree,
Facilitate selection of information considered to be of interest to the user.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram according to a first embodiment of the present invention;

FIG. 2 is a flowchart showing an operation procedure according to the first embodiment of the present invention;

FIG. 3 is a diagram showing an example of a concept tree in real estate information according to the first embodiment of the present invention.

FIG. 4 is a diagram showing an example of a concept tree in news according to the first embodiment of the present invention.

FIG. 5 is a system configuration diagram according to a second embodiment of the present invention.

FIG. 6 is a flowchart showing an operation procedure according to the second embodiment of the present invention;

FIG. 7 is a system configuration diagram according to a third embodiment of the present invention.

FIG. 8 is a flowchart showing an operation procedure according to the third embodiment of the present invention.

FIG. 9 is a system configuration diagram according to a fourth embodiment of the present invention.

FIG. 10 is a flowchart showing an operation procedure according to the fourth embodiment of the present invention.

FIG. 11 is a diagram showing an example of data stored in a user history database according to the fourth embodiment of the present invention.

FIG. 12 is a system configuration diagram according to a fifth embodiment of the present invention.

FIG. 13 is a flowchart showing an operation procedure according to the fifth embodiment of the present invention.

FIG. 14 is a system configuration diagram according to a sixth embodiment of the present invention.

FIG. 15 is a flowchart showing an operation procedure according to the sixth embodiment of the present invention;

FIG. 16 is a diagram showing an example of a concept tree according to the sixth embodiment of the present invention.

FIG. 17 is a diagram illustrating an example of a reconstructed concept tree according to the sixth embodiment of the present invention;

[Explanation of symbols]

 Reference Signs List 101 Information database 102 Concept tree database 103 Classification information adding unit 104 Information transmission unit 105 Concept tree transmission unit 501 Concept tree reception unit 502 Information reception unit 503 Concept tree database 504 Information database 701 Monitor unit 702 Display control unit 703 Key input unit 901 Use User history database 902 scoring unit 903 storage selection unit 1202 information deletion unit 1401 concept tree reconstruction unit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masahiko Tsukamoto 6-7-10 Onohara Higashi, Minoh City, Osaka (72) Inventor Shojiro Nishio 4-2-25 Higashi Mikuni, Yodogawa-ku, Osaka, Osaka

Claims (6)

[Claims] 1. An information storage means for storing information comprising at least one of video, audio, text, and data, and a classification for storing one or more classification trees representing a classification hierarchy for the characteristics of the various information. Tree storage means, classification information addition means for adding classification information in each classification tree to information stored in the information storage means, and information transmission for transmitting information to which classification information has been added by the classification information addition means Means, and a classification tree transmitting means for transmitting a classification tree stored in the classification tree storage means, which is used for classification of transmission information for the purpose of enabling information classification according to a user on the receiving side. An information transmitting apparatus for transmitting a classification tree and information to which classification information in the classification tree is added. 2. Classification tree receiving means for receiving one or more classification trees representing a classification hierarchy for a feature of each information composed of at least one of video, audio, text, and data, and the classification information in the classification tree is added. Information receiving means for receiving the received information, classification tree storing means for storing the received classification tree, and information storing means for storing the received information. An information receiving device, which classifies and stores information. 3. A system comprising: a monitor for displaying selection items and selection information using a classified structure; a display controller for controlling the monitor; and a key input unit for selecting and inputting the selection. By choosing the choice item,
3. The information receiving apparatus according to claim 2, wherein information desired by the user is displayed on a monitor. 4. A user history accumulating means for accumulating a history of information selected by a user; a scoring means for scoring a classification tree using history information accumulated in the user history accumulating means; Storage selection means for selecting whether to store the received information by using the classification tree to which the points are added by the scoring means, and determining the storage of the information from the selection history of the user. The information receiving device according to claim 3, wherein 5. A user history accumulating means for accumulating a history of information selected by a user, a scoring means for scoring a classification tree using history information accumulated in the user history accumulating means, An information deletion unit for deleting stored information by using the classification tree to which the score is added by the scoring unit, and determining deletion of the information from a user's selection history. Item 3. The information receiving device according to Item 3. 6. A user history accumulating means for accumulating a history of information selected by a user, a scoring means for scoring a classification tree using history information accumulated in the user history accumulating means, A classification tree reconstructing means for reconstructing the classification tree using the score added by the scoring means, and reconstructing the classification tree using the user's selection history to view the information of the user. 4. The information receiving apparatus according to claim 3, wherein