JPH07203392A - Teletext receiver - Google Patents

Abstract

PURPOSE:To provide teletext information through hearing sense by regenerating received character data for teletext as human voice. CONSTITUTION:In a voice conversion/regeneration part 4, a character code extracting part 41 removes data such as graphics and extracts only character codes to be expressed as a sentence. An accent added KANA (Japanese syllabary) code conversion part 42 converts KANJI (Chinese character) or KATAKANA (square form of Japanese syllabary) into KANA codes for reading and adds accent data for reading. A voice synthesizing part 43 synthesizes a voice signal having intonation and a pause in each clause from the accent- added KANA codes. The obtained sound signal is outputted as voice through an amplifier 5 and a speaker 6. Consequently a hearing handicapped person also can utilize teletext.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a teletext receiver,
In particular, it relates to a voice conversion control method for the character data.

[0002]

2. Description of the Related Art Conventionally, a teletext receiver only receives a radio wave of a television broadcast, converts a data signal of characters or figures superimposed on the radio wave into a television video signal and displays it on a screen. It was

[0003]

In this conventional teletext receiver, since text data is converted into a television video signal and expressed as an image, it is not possible to provide information to the visually impaired person by teletext. It was possible.

Therefore, an object of the present invention is to reproduce the received character data for teletext as a human voice and provide the information of the teletext through hearing.

[0005]

A teletext receiver according to the present invention receives a radio wave of a television broadcast, extracts a teletext signal from the radio wave, and a text code capable of expressing a sentence from the text data. And a character code extraction means for extracting, converting the character code into a reading hiragana code,
Accent salient hiragana code conversion means for adding reading accent information as a code, speech synthesizing means for synthesizing the accent hiragana code as an audio signal having delimiters in intonation and phrase units, and outputting the audio signal as speech. And output means.

In the teletext receiver according to the present invention,
The character code capable of expressing a sentence includes a code of a punctuation mark, and the voice synthesizing means synthesizes the punctuation code as a silent signal.

Further, in the teletext receiver according to the present invention, the voice synthesizing means may be arranged so that the phrase of the sentence to be read has an interval.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

Referring to FIG. 1, in one embodiment of the present invention, an antenna 1 and a receiving / demodulating section 2 receive a television broadcast radio wave on which a teletext signal is superimposed and demodulate it into a video signal. In the teletext signal extraction unit 3, the text signal separation unit 31 separates the teletext signal from the video signal as digital data, and corrects an error generated during signal transmission through the error correction circuit 32. In the key operation processing unit 33, the error-corrected data is sent to the audio conversion / playback unit 4 according to information such as program selection input by the keyboard 34.

The antenna 1, the reception / demodulation unit 2 and the teletext signal extraction unit 3 are provided in a conventional teletext receiver.

In the voice conversion / reproduction unit 4, the character code extraction unit 41 excludes data such as figures and extracts only character codes that can express sentences. The accented hiragana code conversion unit 42 converts the kanji or katakana included in the character code into a reading hiragana code, and adds reading accent data. The voice synthesizing unit 43 synthesizes a voice signal having a delimiter in units of intonation and phrase from the Hiragana code with accent. The audio signal thus obtained is output as audio by the amplifier 5 and the speaker 6.

Next, the operation of this embodiment will be described.
In the conventional teletext receiver, the teletext data extracted by the teletext signal extraction unit 3 is processed for screen output, but in the present embodiment, the voice conversion reproduction unit 4 for audio output is used. It is processed. The character code extraction unit 41 is provided with a ROM in which codes of characters and symbols that can express sentences, such as kanji, kana, alphanumeric characters and punctuation marks, are registered, and graphic data and control data are excluded from the character broadcasting code. , Only the character codes that can express sentences are identified and extracted.

Hiragana code conversion unit with accent 42
Is equipped with a ROM that stores the Hiragana code for reading various words such as Kanji, Katakana, and numbers, and the information that encodes which character of the reading has the accent. Converts all mixed character codes such as etc. into correct reading hiragana codes and adds accent codes to each word. However, punctuation marks (“.” “,”) Are output as they are.

The voice synthesizing unit 43 decodes the accented Hiragana code to synthesize a voice signal having an accent. At this time, the punctuation mark symbols are synthesized as silent signals each having a specified time, so that the phrase of the sentence to be read has an interval to make it easier to hear.

The voice signal thus synthesized is output as voice from the speaker 6 after passing through the amplifier 5.

[0016]

As described above, according to the present invention, since teletext data for expressing information as an image is converted and reproduced as a voice signal, the information can be perceived by hearing and has a hearing impairment. It is possible for people to use teletext.

Further, since an accent is added to the voice signal to be synthesized, it is possible to output a voice having intonation close to that of a human voice.

Furthermore, if the punctuation marks are synthesized as a silent signal having a specified time and the sentences are read out with a certain interval, it is possible to output a audible and inexpensive voice as a sentence.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 antenna 2 receiving / demodulating unit 3 teletext signal extracting unit 31 character signal separating unit 32 error correcting circuit 33 key operation processing unit 34 keyboard 4 voice converting / playing unit 41 character code extracting unit 42 Hiragana code converting unit with accent 43 voice synthesizing unit 5 amplifier 6 speaker

Claims (3)

[Claims] 1. A character code extracting means for receiving a radio wave of a television broadcast, extracting a signal for a teletext from the radio wave, and extracting a character code capable of expressing a sentence from the data of the teletext, said character code. Converted to a reading hiragana code, accent accent hiragana code conversion means for adding reading accent information as a code, and a voice synthesizing means for synthesizing the accent hiragana code as an audio signal having intonation and phrase units. A teletext receiver comprising: an output unit that outputs the audio signal as audio. 2. The character broadcast according to claim 1, wherein the character code capable of expressing a sentence includes a code of a punctuation mark, and the voice synthesizing means synthesizes the punctuation code as a silent signal. Receiving machine. 3. The teletext receiver according to claim 2, wherein the voice synthesizing means gives a space to the passages of the sentence to be read out.