KR20030033498A - Text/voice inverter in wireless communication terminal and the method - Google Patents

Abstract

PURPOSE: A TTS(Text-To-Speech) converting device in a wireless communication terminal and a method thereof are provided to connect a DM(Diagnostic Monitor) port of the terminal, so that persons unfamiliar with text can easily use an SMS(Short Message Service) and a WAP(Wireless Application Protocol) service. CONSTITUTION: A communication unit(21) downloads WML(Wireless Markup Language) and text including numbers, the alphabet and marks from a wireless communication terminal. A TTS converting unit(22) converts the WML delivered through the communication unit(21) into text, and converts the corresponding text, in which the numbers, alphabet and marks are included, into speech in compliance with a pronunciation rule by each word-phrase based on a speech database. Then, the TTS converting unit(22) synthesizes the speech converted according to word-phrases. A speaker(23) outputs sound synthesized by the TTS converting unit(22). And the communication unit(21) downloads the WML and text through a DM port of the wireless communication terminal.

Description

Text / voice inverter in wireless communication terminal and method thereof {Text / voice inverter in wireless communication terminal and the method}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of text-to-speech (TTS) conversion technology in wireless communication terminals. In particular, the present invention is connected to the DM (Diagnostic Monitor) port of the terminal, and is inexperienced in texts such as the elderly and the visually impaired. The present invention relates to a text-to-speech device that makes it easier for people to use text messages or wireless application protocol (WAP) services, and a method and a computer-readable recording medium having recorded thereon a program for realizing the method.

The output of a conventional text message or WAP service is only a small screen of a mobile phone. This makes it difficult for people who are new to text, such as short message services (SMS) or older people who are not familiar with WAP, to those who are new to text.

Conventional technologies have been developed that can display more than 12 lines of text on the screen of a mobile phone, but the text is too small for people who are inexperienced in text, such as the elderly and the visually impaired.

Therefore, there is an urgent need for a method for easily using services supported by text such as SMS or WAP, even by inexperienced people such as the elderly and the visually impaired.

The present invention has been proposed in order to meet the above-mentioned requirements, and those who are inexperienced in text, such as the elderly or visually impaired, on the wireless communication terminal are mainly focused on text (including numbers, alphabets and symbols) like SMS or WAP service. It is an object of the present invention to provide a text-to-speech conversion apparatus for making the service easier to use, and a method and a computer-readable recording medium recording a program for realizing the method.

1 is an exemplary configuration diagram of a wireless communication terminal in which a text-to-speech device according to the present invention is linked;

2 is a block diagram of an embodiment of a text-to-speech device according to the present invention;

3 is a block diagram of another embodiment of a text-to-speech device according to the present invention;

Figure 4 is a detailed configuration diagram of an embodiment of the text / voice conversion unit of the text / voice conversion apparatus according to the present invention.

5 is a flowchart of an embodiment of a text / voice conversion method according to the present invention;

* Explanation of symbols for the main parts of the drawings

21, 31: communication module 22, 32: text / voice conversion unit

23: speaker

The present invention for achieving the above object, in the text / voice conversion apparatus for a wireless communication terminal, for downloading (WML) (Wireless Markup Language) / text (including numbers, alphabets, symbols) from the wireless communication terminal Communication means; Converts the WML transmitted through the communication means into text, converts the corresponding text (including numbers, alphabets, and symbols) into speech based on the pronunciation law for each word based on a speech database, and then converts the speech converted into each word. Text / voice conversion means for synthesis; And voice output means for outputting the synthesized sound by the text / voice conversion means.

In addition, the present invention, in the text / voice conversion device in a wireless communication terminal, WML (Wireless Markup Language) / text (including letters, numbers, alphabets, symbols) from the wireless communication terminal to download (voice) data Communication means for uploading to the output means of the wireless communication terminal; And a text / voice conversion for converting the WML transmitted through the communication means into text and converting the corresponding text (including numbers, alphabets and symbols) into speech based on the pronunciation law based on a voice database and transmitting the same to the communication means. Characterized in that it comprises a means.

In addition, the present invention, in the text / voice conversion method applied to the text / voice conversion apparatus, the first WML (Wireless Markup Language) / text (including numbers, alphabets, symbols) from the wireless communication terminal (download) step; A second step of converting the downloaded WML into text, converting the corresponding text (including numbers, alphabets, and symbols) into speech based on a pronunciation rule for each word based on a speech database, and then synthesizing the speech converted by each word step; And a third step of outputting the synthesized sound through the voice output means. The present invention may further comprise a fourth step of outputting the synthesis through the speaker of the terminal after performing the second step.

The present invention also provides a text / voice conversion apparatus including a processor, comprising: a first function of downloading WML (Wireless Markup Language) / text (including numbers, alphabets, and symbols) from a wireless communication terminal; A second step of converting the downloaded WML into text, converting the corresponding text (including numbers, alphabets, and symbols) into speech based on a pronunciation rule for each word based on a speech database, and then synthesizing the speech converted by each word function; And a computer readable recording medium having recorded thereon a program for realizing the third function of outputting the synthesized sound through the audio output means. In addition, the present invention provides a computer-readable recording medium having recorded thereon a program for further realizing a fourth function of outputting synthesis through a speaker of the terminal after performing the second function.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exemplary configuration diagram of a wireless communication terminal in which a text / voice conversion apparatus is linked according to the present invention, in which “11” denotes a terminal and “12” denotes a reader device (text / voice conversion apparatus).

As shown in FIG. 1, the reader device (text / voice conversion device) 12 is connected to the DM port of the terminal 11 to download a WML (Wireless Markup Language) document of SMS or WAP to the device and mount the device in the device. Voice to speech by means of a text-to-speech (TTS) converter.

FIG. 2 is a diagram illustrating an embodiment of a text / audio conversion device according to the present invention, in which “21” denotes a communication unit, “22” denotes a text / voice conversion unit, and “23” denotes a speaker.

As shown in FIG. 2, a text / audio conversion device in a wireless communication terminal having a speaker (voice output function) included in the device itself includes a WML (Wireless Markup Language) / text (including numbers, letters, and symbols) from the terminal. Converts the WML transmitted through the communication unit 21 and the text into text, and converts the corresponding text (including numbers, alphabets, and symbols) into pronunciation rules based on the speech database. And a speaker 23 for outputting the synthesized sound by the text / voice converter 22 for synthesizing the voice converted for each word based on the voice.

Here, the communication unit 21 uses a general DM (Diagnostic Monitor) method, the transmission method is generally asynchronous (asynchronous) communication rate using a 38400bps. At this time, the transmission unit is processed into 8 bits, and no parity bit is used. The connector operates in asynchronous communication "RS-232" mode and the "RS-232" I / O pin assignments and functions of the DM port are shown in [Table 1] below.

On the other hand, the structure of the DM interface is shown in Table 2 below.

Herein, a command code designates a function of a corresponding message, an information field means a data field required for the corresponding message function, and a frame check indicates a cyclic redundancy check (CRC). The ending flag means 0x7E (1 byte).

Using the DM interface of [Table 1], the text / conversion device requests a WML or SMS document on the terminal memory and receives the document, and then converts it into voice through the internal text / voice conversion unit 22 to convert the speaker 23 into a voice. Voice data is output through

On the other hand, when only the output function of the terminal is used without separately mounting a speaker inside the text / voice conversion apparatus, the synthesized sound is transmitted to the terminal through the DM interface. That is, according to the command code, necessary data are stored in the information field for upload / download. Detailed description thereof will be given with reference to FIG. 3.

3 is another embodiment of the text / audio conversion apparatus according to the present invention, in which “31” denotes a communication unit and “32” denotes a text / voice conversion unit 32, respectively.

As shown in FIG. 3, the text / audio conversion apparatus using the output function of the terminal without a speaker (voice output function) in the device itself is a WML (Wireless Markup Language) / text (letters, numbers, letters, symbols) from the terminal. Download), the communication unit 31 for uploading the voice data to the DM port of the terminal, and converts the WML transmitted through the communication unit 31 to text, and based on the voice database A text / voice conversion unit 32 converts text (including numbers, alphabets and symbols) into speech based on the law of pronunciation and transmits it to the communication unit 31.

4 is a detailed configuration diagram of a text / voice conversion unit in a text / voice conversion apparatus according to the present invention, in which “41” is a language processing unit, “42” is a speech synthesis unit, and “43” is Represent each voice database.

As shown in FIG. 4, the text / voice converter includes a simple WML document interpreter for reading WML documents in addition to text (including numbers, alphabets, and symbols) processing, and converts WML transmitted through the communication unit into text. On the basis of the voice database 43, the language processing unit 41 for voice conversion of the text (text transmitted directly through the communication unit and the WML-converted text) into a format that displays each phonetic word by phoneme, and language And a speech synthesizer 42 for synthesizing and outputting the speech converted by each word by the processor 41. Since the WML document to be read by the text / voice converter is information such as a menu or news, You do not have to have a processing module for extended tags that takes into account java).

5 is a flowchart illustrating a text / voice conversion method according to the present invention.

As shown in FIG. 5, in the text / voice conversion method according to the present invention, first, the text / voice conversion unit receives WML / text through a communication unit connected to a DM port of a terminal (501) and converts the WML document into text. (502, 503), based on the speech database, read the numbers, alphabets, symbols, etc. from the text (504) and converts the entire text into a format that is displayed phonetically for each word (505), then converted for each word Speech is synthesized (506) and the synthesized sound is output (507).

On the other hand, when text (including numbers, alphabets, symbols) is input, the text / voice converter reads numbers, alphabets, symbols, etc. from the text based on a speech database (504), and displays the entire text as each word is spoken aloud. After the voice is converted into a format (505), the synthesized voice is synthesized by each word (506) and the synthesized sound is output (507).

In the process of converting the WML document into text (503), tags such as <BR/> and <Comments> are ignored, and <IMG SRC =…. Picture attachments, such as>, must be converted to "pictures." In this part, the WML interpreter currently in the terminal can be used as it is. However, only the places such as <BR/> (line break) or picture attachment need to be converted and applied for TTS.

It is also possible to use a WML interpreter that is currently embedded in a WAP terminal without embedding the WML interpreter in the reader device. Doing so removes the WML-> text conversion module from the text-to-speech device, reducing the amount of memory, etc.

Here is a simple example:

(1) input WML document

<WML>

<CARD>

<DO TYPE = "ACCEPT" LABEL = "Next">

<GO URL = "# eCard" />

</ DO>

n.Welcome to Top <BR/> Welcome

</ CARD>

<CARD NAME = "eCard">

<DO TYPE = "ACCEPT">

<GO URL = "? Send = ＄ type" />

</ DO>

Service provided

<SELECT KEY = "type">

<OPTION VALUE = "ttl"> 20-year-old TTL </ OPTION>

<OPTION VALUE = "bk"> View account </ OPTION>

<OPTION VALUE = "ph"> Phonebook </ OPTION>

</ SELECT>

</ CARD>

</ WML>

(2) Terminal indication

(3) after WML-> text conversion

# 1 screen

Welcome to n.Top

# 2 screen

Service provided

1 TTL at 20

2 Account Inquiry

3 Directory

(4) After reading numbers and English letters

# 1 screen

Welcome to Entop

# 2 screen

Service provided

Ttiel, 20 years old

View this account

3 Directory

(5) After the sound

# 1 screen

Welcome to Entabe

# 2 screen

Provided Services

Work

View this account

3

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention has an effect that even people who are inexperienced in text, such as the elderly and visually impaired, can easily use services supported by text such as SMS or WAP on the wireless communication terminal.

Claims (11)

In the text-to-speech device in a wireless communication terminal, Communication means for downloading WML (Wireless Markup Language) / text (including numbers, alphabets and symbols) from a wireless communication terminal; Converts the WML transmitted through the communication means into text, converts the corresponding text (including numbers, alphabets, and symbols) into speech based on the pronunciation law for each word based on a speech database, and then converts the speech converted into each word. Text / voice conversion means for synthesis; And Voice output means for outputting synthesized sound by said text / voice conversion means Text / voice conversion device in a wireless communication terminal comprising a. The method of claim 1, The communication means, The WML / text is downloaded through the DM (Diagnostic Monitor) port of the wireless communication terminal, and has a DM interface structure as described below, characterized in that the wireless communication terminal text / voice conversion apparatus. (In this case, a command code designates a function of a corresponding message, an information field refers to a data field required for the corresponding message function, and a frame check refers to a cyclic redundancy check (CRC). Ending Flag means 0x7E (1 byte) The method according to claim 1 or 2, The text / voice conversion means, Language processing means for converting the WML transmitted through the communication means into text based on the speech database and converting the text into a text using a parser for a WML document and displaying the text in a phonetic manner for each word; And Speech synthesis means for synthesizing the speech converted by each word by the language processing means and delivering the speech output means to the speech output means. Text / voice conversion device in a wireless communication terminal comprising a. In the text-to-speech device in a wireless communication terminal, Communication means for downloading WML (Wireless Markup Language) / text (including letters, numbers, alphabets and symbols) from a wireless communication terminal and uploading voice data to an output means of the wireless communication terminal; And Text / voice conversion means for converting the WML transmitted through the communication means into text, and converts the corresponding text (including numbers, alphabets and symbols) into voice based on the pronunciation law based on the voice database and delivers it to the communication means. Text / voice conversion device in a wireless communication terminal comprising a. The method of claim 4, wherein The communication means, The WML / text is downloaded through the DM (Diagnostic Monitor) port of the wireless communication terminal, and has a DM interface structure as described below, characterized in that the wireless communication terminal text / voice conversion apparatus. (In this case, a command code designates a function of a corresponding message, an information field refers to a data field required for the corresponding message function, and a frame check refers to a cyclic redundancy check (CRC). Ending Flag means 0x7E (1 byte) In the text / voice conversion method applied to the text / voice conversion device, A first step of downloading WML (Wireless Markup Language) / text (including numbers, alphabets and symbols) from a wireless communication terminal; A second step of converting the downloaded WML into text, converting the corresponding text (including numbers, alphabets, and symbols) into speech based on a pronunciation rule for each word based on a speech database, and then synthesizing the speech converted by each word step; And A third step of outputting the synthesized sound through the voice output means; Text / voice conversion method in a wireless communication terminal comprising a. The method of claim 6, After performing the second step, the fourth step of outputting the synthesis through the speaker of the terminal Text / voice conversion method in a wireless communication terminal further comprising. The method of claim 6, The first step is, The WML / text is downloaded through the DM (Diagnostic Monitor) port of the wireless communication terminal, and has a DM interface structure as follows. (In this case, a command code designates a function of a corresponding message, an information field refers to a data field required for the corresponding message function, and a frame check refers to a cyclic redundancy check (CRC). Ending Flag means 0x7E (1 byte) The method according to any one of claims 6 to 8, The second step, Based on the voice database, the WML transmitted through the DM port is converted into text using a parser for a WML document, and the voice is converted into a format in which the text is spoken for each word and then converted for each word. A method of text / voice conversion in a wireless communication terminal, characterized in that the synthesized speech. In a text-to-speech device with a processor, A first function of downloading WML (Wireless Markup Language) / text (including numbers, alphabets and symbols) from a wireless communication terminal; A second step of converting the downloaded WML into text, converting the corresponding text (including numbers, alphabets, and symbols) into speech based on a pronunciation rule for each word based on a speech database, and then synthesizing the speech converted by each word function; And A third function of outputting the synthesized sound through the voice output means; A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 6, A fourth function of outputting the synthesis through the speaker of the terminal after performing the second function A computer-readable recording medium that records a program for further realization.