JPH0421288A - Teletext receiver - Google Patents

Abstract

PURPOSE:To read out a sentence including external characters correctly by providing an external processing section converting an external character into other character string than the external character to a teletext receiver able to sound out an output. CONSTITUTION:An external character code detection section 10 checks the presence of an external character code in a data sent from a sentence segmentation section 9 and when an external character code exists, the external character code is sent to an external character code conversion section 23, which receives a character string for external character conversion and gives a sentence after conversion to a syntax section 11. The external character code conversion section 23 seeks a character string for the external character conversion from an external character conversion table 22 based on the external character code sent from the external character code detection section 10 and sends it back to the external character code detection section 10. The syntax section 11 applies syntax while using a dictionary based on a sentence received from the external character code detection section 10 and sends phoneme information and rhythm information to a voice synthesis section 12. The voice synthesis section 12 selects a phoneme from a phoneme dictionary, links the phonemes sequentially based on rules and a speaker 6 sounds the result.

Description

DETAILED DESCRIPTION OF THE INVENTION 1. Arashi Mitsumi The present invention relates to a teletext receiving device, and more particularly to a teletext receiving device capable of outputting audio.

k rice! Television teletext broadcasting (hereinafter abbreviated as "teletext broadcasting"), in which codes or pixel data are superimposed and transmitted during the vertical blanking period of a television video signal, has been put into practical use. Conventional teletext receiving devices have built-in generators for text, graphics, and musical tones, decode received codes or pixel data, and output the decoded data from a television screen or speaker. Further, Japanese Patent Application Laid-open No. 148290/1983 discloses a teletext receiving device that converts received text data into audio and outputs it. In this case, one of the desirable tasks is to give readings to external characters.

When transmitting teletext, codes are assigned to the characters, symbols, etc. used in normal teletext, and these codes are transmitted. However, patterns other than the characters and symbols given these codes (hereinafter referred to as external characters) may be sent.

Examples of external characters used during teletext broadcasts include the hiragana ``ta'' and the comma ``.'', which are combined into one character, ``.''
Ta. There are also emojis that read ``mouth'' as ``han.'' When outputting teletext as audio, it is necessary to give pronunciations to these external characters so that they can be output as audio information, but the above-mentioned prior art does not solve this problem.

The teletext receiving device described in the above-mentioned Japanese Patent Application Laid-open No. 60-148290 detects characters from the received image pattern by matching, converts the character data into audio, and outputs it. Any pattern can be read if the corresponding pattern is prepared, but since this is intended for teletext receiving devices that are not equipped with a character generator, all characters must be treated as targets for matching processing. There were problems such as a heavy burden on the matching process.

The present invention has been made in view of the above-mentioned circumstances, and
This was done for the purpose of realizing a teletext receiving device that can output audio.

In order to achieve the above object, the present invention provides (1) a teletext receiving section that receives a teletext signal, and a speech synthesizer that converts the text information received by the teletext receiving section into speech and outputs it. In a teletext receiving device capable of outputting audio, the teletext receiving device is equipped with a
It has a discrimination section for discriminating the presence or absence of a non-standard character in a teletext broadcast, a non-standard character dictionary section, and a non-standard character conversion section, and when a non-standard character is detected in the discrimination section, the non-standard character conversion section has a The type of the external character is determined by comparing with multiple types of prepared patterns, and based on the determined type of the external character, the external character is converted to a string other than the external character, a string that does not include the external character is created, and this external character is (2) In (1) above, the voice synthesis unit performs voice output processing using a character string that does not include a character string that does not include a character string that is registered in a dictionary with a character pattern in the character conversion unit. (3) The comparison between the custom character pattern in the custom character conversion unit and the pattern registered in the dictionary is performed by comparing the feature points. (4)
In a teletext receiving device capable of outputting audio, which includes a teletext receiving unit that receives a teletext signal, and a voice synthesis unit that converts text information received by the teletext receiving unit into audio and outputs the voice, A determination unit that determines the presence or absence of a character, a program-specific character conversion table, and a character type that determines the type of character,
The external character conversion unit converts the external character into a character string other than the external character based on the type of the external character determined, and the external character conversion table includes a external character code unique to one program, and the external character code is used to convert the external character into a character string other than the external character. This system is characterized in that it converts the text into a character string other than a custom character and performs audio output processing. Hereinafter, the present invention will be explained based on examples.

FIG. 1 is a diagram for explaining an embodiment in which the present invention is applied to code transmission (hybrid) type teletext broadcasting implemented in Japan. In the figure, 1 is a teletext receiving section, 2
is the character generator, 3 is the pattern memory, 4 is the TV screen,
5 is a musical sound generation section, 6 is a speaker, 7 is external character pattern data, 8 is a character page memory, 9 is a text cutting section, 10
11 is a language analysis unit, 12 is a speech synthesis unit, 13 is a custom character detection unit, 14 is a pattern dictionary, and 20 is a custom character conversion unit.
1. It consists of a private character conversion table 22, a private character code conversion section 23, and the like. The discrimination section according to claim 1 is the external character detection section 1.
The external character dictionary section corresponds to the pattern dictionary 14, the external character conversion section corresponds to the external character code conversion section 23, the external character conversion table 22, and the external character type determination section 21.

This will be explained below along with the drawings.

The teletext receiving unit 1 receives and detects television waves,
Extract teletext data. The pattern memory 3 temporarily stores pixel data in teletext data and character patterns generated by the character generation section 2, and outputs them to the television screen 4. In the private character pattern data 7, private character patterns in teletext data are stored together with character codes corresponding to the private characters. A character generating section 2 receives a character code during teletext broadcasting, generates a character pattern corresponding to the code using external character pattern data 7 as necessary, and sends it to a pattern memory 3. A musical tone generator 5 receives a musical tone code in teletext data, generates a musical tone corresponding to the code, and outputs it from a speaker 6.

The above configuration is the same as that of a conventional teletext receiving apparatus, and detailed explanation will be omitted.

The character page memory 8 stores only the character codes in the teletext data on a page-by-page basis, and has an address corresponding to the display coordinate position when displaying characters on the television screen.

The sentence cutting section 9 analyzes the connection of sentences on the character page memory 8, cuts out the sentences in the order of reading, and sends them to the external character code detection section 10.

On the other hand, the private character detection section 13 monitors the private character pattern data 7, and if a private character exists, sends the private character to the private character type determination section 21 and sends the private character code to the private character conversion table 22. The non-standard character type determination unit 21 compares the contents of the pattern dictionary (an example of the structure of a pattern dictionary is shown in FIG. 2) 14 with the non-standard characters, determines the type of the non-standard character from the matching result, and, if possible, Generates a character string to convert a custom character, and generates a custom character conversion table (Figure 3 shows an example of a custom character conversion table).
Send the string to 22. This character string is used to represent external characters using characters other than external characters, including kanji, hiragana, katakana,
Alternatively, it may be a phonetic symbol, etc.

When comparing the entire pattern between the custom character pattern in the custom character conversion unit 20 and the pattern registered in the dictionary, the pattern matching and the determination of the custom character type are performed by, for example,
Among the patterns prepared in the pattern dictionary 14, the pattern P(i,
j) and the external character G(i, j), ΣI P (i,
j) −G (i, j) l is calculated, and if the minimum value thereof is smaller than a certain threshold value, it is determined that the pattern P(IIJ) that is the minimum is a type of external character, If the minimum value is larger than the threshold value, it is determined that the corresponding external character type does not exist.

In addition, in a device that compares feature points between a custom character pattern and a pattern registered in a dictionary in the custom character converter, the pattern matching and the custom character type determination are performed in the custom character type determination part without using the custom characters as they are. By using only information on predetermined feature points and also preparing feature point information in the pattern dictionary, determination is made in substantially the same way as when comparing the entire patterns.

The private character code detection unit 10 checks the presence or absence of a private character code in the data sent from the text extraction unit 9, and if a private character code is present, sends the private character code to the private character code conversion unit 23, which is used for private character conversion. The receiver receives the character string and sends the converted sentence to the language analysis section 11.

The private character code converter 23 searches the private character conversion table 22 for a character string for private character conversion based on the private character code sent from the private character code detector 10, and sends it back to the private character code detector 10. .

The language analysis unit 11 performs language analysis using a dictionary based on the sentence received from the external character code detection unit 10.
The phonetic information and prosody information are sent to the speech synthesis section 12. The speech synthesis section 12 selects phonemes from the phoneme dictionary, sequentially combines them based on rules, and outputs speech from the speaker 6.

Figure 4 shows the code transmission (
This is a diagram for explaining another embodiment when applied to teletext (hybrid) system. In the diagram, parts that have the same effect as the embodiment shown in FIG. Reference numbers are included.

In teletext broadcasting, the external character code and the corresponding external character are often determined depending on the program. Therefore, once the program is known, it is possible to directly convert the private character code into a character string using the private character conversion table 22 without preparing the pattern dictionary in the embodiment shown in FIG.

The operation of each part is similar to the embodiment shown in Fig. 1, but in this embodiment, a custom character conversion table corresponding to the program is required, so the custom character conversion table is stored in an external storage device, such as an IC card. It is conceivable to supply it by means of a floppy disk.

First-11 As is clear from the above description, according to the invention of claim 1, a teletext receiving device capable of outputting audio is provided with a custom character processing unit that converts custom characters into character strings other than the custom characters. This makes it possible to read non-standard characters that could not be read aloud in the past, and sentences containing non-standard characters can be read out correctly, making it possible to achieve great effects.

Further, when matching of non-standard characters is performed by comparing the entire patterns, it is possible to easily register new patterns, and the scalability of the non-standard character dictionary is large.

In addition, when matching external characters using minutiae points, depending on the status of the new pattern, the status of the minutiae points may match an already registered pattern.
Although care must be taken when registering patterns, since the amount of data can be kept small, the external character dictionary can be made small and the calculation time for comparison operations can be shortened.

Furthermore, according to the invention of claim 2, in the teletext receiving device that is capable of audio output and is equipped with a character conversion section that converts custom characters into other character strings, by specifying the target teletext program, There is no need for a pattern dictionary of external characters, calculations for comparison, etc., making it possible to significantly simplify the configuration of the device and shorten the processing time.

[Brief explanation of drawings]

Claims (1)

[Claims] 1. A teletext broadcast capable of audio output, comprising a teletext receiving section that receives a teletext signal, and a speech synthesis section that converts the text information received by the teletext receiving section into speech and outputs it. The receiving device includes a determination unit that determines the presence or absence of a non-standard character in a teletext broadcast, a non-standard character dictionary unit, and a non-standard character conversion unit, and when a non-standard character is detected in the determination unit, the non-standard character is The type of external character is determined by comparing with multiple types of patterns prepared in advance in the dictionary section, and from the determined type of external character, the external character is converted to a character string other than the external character to create a character string that does not include the external character. The teletext receiving apparatus is characterized in that the voice synthesis section performs voice output processing using the character string that does not include the external characters. 2. A teletext receiving device capable of outputting audio, comprising a teletext receiving unit that receives a teletext signal, and a voice synthesis unit that converts the text information received by the teletext receiving unit into audio and outputs the voice; A determination unit that determines whether or not there is a custom character inside, a custom character conversion table specific to the program, and a custom character conversion unit that determines the type of the custom character and converts the custom character into a character string other than the custom character based on the determined type of the custom character. The teletext broadcasting is characterized in that the private character conversion table includes a private character code unique to the program, and the private character code is used to convert the private characters into character strings other than the private characters and perform audio output processing. Receiving device.