JPH07143463A - Teletext program retrieval device - Google Patents

Abstract

PURPOSE:To retrieve even a program whose detail is not clear through the entry of a keyword of its genre by interconnecting a ROM, a RAM, a memory and a data base memory and a control section controlling them with a common bus line. CONSTITUTION:A genre code on each program is included in a teletext signal and a broadcast station sends the resulting signal. The genre code is added with a keyword representing the content of the program as information by a sender so as to allow a receiver to identify each program independently. A memory 12 of the receiver stores a teletext broadcast program sent under the control of a control 6 and a genre code is extracted and stored in a database memory 13. The user enters a keyword estimated by the acquired information by using a keyboard 8. The control section 6 uses a fuzzy deduction program in an operating program stored in a ROM 9 to compare the genre code in an information core aggregate of the memory 13 with the received keyword sequentially and the coincident information is extracted and displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a teletext device,
More specifically, the present invention relates to a program selection method of a teletext program by the teletext device.

[0002]

2. Description of the Related Art Conventionally, in order to search for broadcast programs by genre such as weather forecast, stock market conditions, news, etc. by means of a teletext device, a telecasting table of contents broadcast screen is used to select a desired program from the screens. Find a program to play,
Alternatively, by searching for a desired program from the program list distributed in advance (1) At the user's discretion, the remote controller or the like is used to switch the broadcast channel or perform an input operation to specify a specific program / page number. , Predetermined program / page
Display the page. (2) By genre, for example, news,
Input the character string such as weather forecast, and the device side judges whether the character string matches the specified character string from the program,
Method of selecting programs with matching character strings (keyword
There was a search method). However, in the method (1), only the information that shows the program / page number can be obtained in advance, and the procedure for obtaining the information that one wants to know is limited, and it is necessary to perform a specific operation using a remote controller or the like, which is troublesome. However, there was an inconvenience that I couldn't immediately know where the information I wanted to obtain was. Further, in the method (2), only the program / page information including a character string that completely matches the keyword for selection cannot be selected, and a full-scale search function can be realized. It had the problem that it was not done.

[0003]

The above-mentioned conventional method (1) is inconvenient because it can only obtain information about the program / page number in advance, and like the method (2), it is not convenient. The program and page number are known in advance in the present invention because the program cannot be specified unless a character string that completely matches the key word is input. Even if there is no program, it is possible to search for the program by entering the keyword of the genre considered to belong to it, and the keyword for selection does not completely match the genre name of the program or the title name. It is to provide a program that enables a program to be searched even in the case of a failure.

[0004]

In order to solve the above-mentioned problems, the present invention inputs a character signal from an antenna to a tuner,
In a teletext receiving device configured to be decoded by a teletext decoder, input the decoded data to an input / output interface, connect a keyboard to the input / output interface, and display the teletext data on a monitor receiver. A ROM that stores information such as
RAM for writing and reading data
And a memory for temporarily storing the teletext data,
It has a text-based broadcast data in this memory as a file, and has a database memory for storing together with its genre-specific information, and a ROM, RAM, memory, and a control unit for controlling the database memory via a common bus line. Configured to connect to each other.

[0005]

With the above construction, in the teletext program search apparatus according to the present invention, on the information sending side,
A plurality of "keywords" that are considered to represent the contents of each page of a program are added as information to a teletext signal used for conventional teletext, and this is used as a genre-specific code. An undefined code or bit is assigned so that another code can be independently identified on the receiving side, and the status is transmitted, and on the receiving side, the control unit stores the transmitted teletext program in a memory,
The status is identified, its genre code is extracted, stored in the information core aggregate of the database memory in the order of head pointers, and the title layer of the program data and other attributes are stored in the name layer. The user of the character information receiving device inputs a keyword that he can think of from the information he wants to obtain from the keyboard, and the control unit uses the fuzzy reasoning program of the ROM in which the program etc. is stored, and sets the information core set of the database memory. The genre code in the body and the "search keyword" input from the keyboard are sequentially compared, the ratio between the number of matches and the genre code is calculated as a numerical value, and this numerical value is stored in the fuzzy value storage layer. The stored numerical values are sequentially compared, and the one with the largest matching numerical value is selected in order, and the programs are extracted as the programs of candidates for the keyword having a high degree of relevance. From the memory corresponding to these head pointers, the receiving channel / program number is selected. / Search the information on the page and display it on the screen.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a teletext program search device according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of a teletext receiving device to which the present invention is applied. In FIG. 1, reference numeral 1 denotes the entire database of this device, and antenna 2
The teletext signal input from is demodulated by the tuner 3 and decoded by the teletext decoder 4, and the data is input to the monitor receiver 5 and the input / output interface 7 of the control unit 6. In addition, the input / output interface 7 of the control unit 6
A keyboard 8 is connected to, and the control unit 6 has a ROM 9 in which programs and the like are stored and a RAM 10 in which data is written and read.
These are connected to each other via a common bus. Reference numeral 12 is a memory for storing the data content of the transmitted teletext program, and 13 is a database memory for storing the teletext data in the memory 12 as a file together with the genre-specific information. The memories 12 and 13 are connected to the input / output interface 7, the ROM 9 and the RAM 10 via the bus line 11 of the control unit 6, and the database memory 13 includes the control unit 6 as will be described later.
Builds a database and retrieves file data.

As shown in FIG. 2, one core of the information core aggregate stored in the database memory 13 is a head pointer 21 (a portion in the database memory indicating the address of the information core, the name layer 22). (A part indicating the title name of program data, genre code 23
(A plurality of contents in the genre code to which the program belongs), a fuzzy value storage layer 24 (a fuzzy value indicating the relevance to the title name of the name layer of the genre is 0.0 to 0.0).
It has a value between 1.0).

Next, a method of detecting a desired genre broadcast program by the method of searching a teletext program according to the present invention will be described with reference to FIG. As used in conventional text broadcasting, from the broadcasting station side, in the text broadcasting signal using the part (vertical blanking period) that cannot be effectively used as the video signal of the broadcast radio wave of the television station, Each program is sent with a genre code included. This genre-specific code (1) adds a plurality of "keywords" that are considered to represent the contents of each page of the program as information on the information sending side, and the keywords can be independently identified on the receiving side. To do so. (2) On the receiving side, the control section stores the transmitted teletext program in the memory, extracts the genre code, stores it in the information core aggregate of the database memory 13 in order of the head pointer 21, and The name layer 22 stores the title name of the program data and other attributes (for example, each item such as a receiving channel and page). (3) The user of the character information receiving device inputs a keyword (search keyword) that he can think of from the information he wants to obtain from the keyboard. (4) The control unit uses the fuzzy inference program in the operation program stored in the ROM 9, and uses the genre code in the information core aggregate of the database memory 13 and the “search keyword input from the keyboard. 25 are sequentially compared, and the coincident ones are extracted and displayed.

The fuzzy inference program selects, from the entire set U of received teletext programs in the database memory 13, those belonging to the same genre and sets them as the subset A in the database memory 13. Build in. Furthermore, for each of various keywords, the degree to which the subset A is considered to belong (referred to as the degree of membership C) is a real-valued function value of 0 or more and 1 or less, and the fuzzy value is an attribute of the subset A. It is stored in the storage layer 24. In this case, for the convenience of searching, the inside of the fuzzy value storage layer 24 is, for example, the keyword A,
The value of the degree of affiliation C, which is considered to belong to no subset at all, is 0.
Is stored as

A specific example of searching a teletext program by using the above-mentioned fuzzy inference program by using the database memory 13 configured as described above is as follows.
When the keyword ABC is input, the control unit reads out the subset A26 which is considered to correspond to the input "search keyword" 25, and the fuzzy value storage layer 2 thereof is read.
The numerical values of 8 are sequentially compared, and the head pointer having the highest matching numerical value is selected from the head pointers in order, and the programs are extracted as candidate programs of the transmission keyword having high relevance. From the memory 12 corresponding to these head pointers. , Search the information of the receiving channel / program number / page and display it on the screen. When the keyword is abC, the subset B27 which is considered to correspond to the input “search keyword” is read out, the numerical values in the fuzzy value storage layer 29 are sequentially compared, and the coincident numerical value is the highest. The head pointers are selected in order from the largest one, extracted as programs of candidates of transmission keywords having high relevance, and the memory 12 corresponding to these head pointers is selected.
Search the information of the receiving channel / program number / page from and display it on the screen. Therefore, whether the input search keyword is ABC or abC, almost the same search result can be obtained. For example, if the search keyword is mistakenly input in uppercase and lowercase letters, Even if it happens, the same result will be obtained regardless of the input error.

As a method (means) for evaluating / numerizing the relation between keywords, the receiving device has a memory for updating / adding contents and a learning (or user registration) function dictionary = word / idiom / character string. Inter- / correlation data dictionary "
Built-in "fuzzy dictionary". (The media can be flash memory / SRAM memory / magneto-optical disk, etc. The format is a replaceable type such as IC card / disk,
Possible variations such as impossible form).

[0012]

As described above, according to the method for searching for a teletext program according to the present invention, the user can enter any number of possible keywords without knowing the desired information of which program of which channel. By simply inputting, the program information highly relevant to the desired program can be automatically obtained.

[Brief description of drawings]

FIG. 1 is a block diagram of a teletext program search device according to the present invention.

FIG. 2 is a configuration diagram of a teletext program search device database according to the present invention.

[Explanation of symbols]

 1 whole database 2 antenna 3 tuner 4 teletext decoder 5 monitor receiver 6 controller 7 input / output interface 8 keyboard 9 ROM 10 RAM 11 memory 12 memory 13 database memory

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Claims (2)

[Claims] 1. A character broadcasting decoder for inputting a character signal from an antenna to a tuner and decoding an output of the tuner, and an output of this decoder for input / output interface for displaying on a monitor receiver and for inputting / outputting the input / output. A teletext receiver that has a keyboard connected to the interface to search for teletext programs, a ROM that stores programs, a RAM that stores data, a memory that temporarily stores teletext data, and characters in this memory. A character broadcasting having a database memory for storing a file of broadcast data, and a control unit for controlling the ROM, RAM, memory and database memory are connected to each other via a common bus line. Program search device. 2. A teletext program search device, wherein a fuzzy inference program for program search is provided in a ROM storing the program.