KR20070078442A - System and method for transforming voice of mobile phone - Google Patents

Abstract

A voice conversion system and method of a mobile terminal are provided to allow a user who has had a temporary or permanent speech impediment to express his/her intension accurately and quickly to the other party by using a mobile terminal having an acceleration sensor and an external key. A transmitter(110) and a receiver(120) transmit and receive various signals through a mobile communication network. A display unit(150) outputs various display data and text messages generated from a mobile terminal(100). A key input unit(140) includes plural number/character keys, special character keys, function keys for interface with a user, a key for call communication, and external keys for a movement recognition start command and distinguishing between consonants and vowels. An acceleration sensor recognizes movement of the mobile terminal(100). A controller(130) controls the operation of the transmitter and receiver and instructs voice conversion after letters and a sentence are completed by combining consonants and vowels. An audio conversion unit(190) converts a digital signal into a voice and transmits it to a speaker(170), and converts a voice received through a microphone(180) into a digital signal.

Description

Voice conversion system of mobile communication terminal and method thereof {SYSTEM AND METHOD FOR TRANSFORMING VOICE OF MOBILE PHONE}

1 is a block diagram showing the internal configuration of a mobile communication terminal of the present invention.

2 illustrates an appearance of a voice conversion system of a mobile communication terminal according to an embodiment of the present invention.

3 is a flowchart illustrating a voice conversion method of a mobile communication terminal according to an embodiment of the present invention.

4 illustrates an example of a voice conversion operation of a mobile communication terminal according to an embodiment of the present invention.

The present invention relates to a voice conversion system and a method of a mobile communication terminal, and more particularly, to a voice conversion system and a method of a mobile communication terminal that allows a speech-impaired person to make a voice call with the other party.

As the technology of mobile communication is gradually developed, various mobile communication terminals such as PDAs and mobile phones have various information functions such as a memory function capable of storing data externally, a camera capable of recording an image of a subject, and a camcorder function capable of recording video. Are provided.

Although the mobile communication terminal is equipped with various informatization functions, the speech-impaired person uses a short message service to communicate a doctor because it is impossible to make a voice call to the recipient during a call using the general mobile communication terminal.

Short Message Service (SMS) is a text service that allows users of mobile communication terminals to send and receive short sentences of about 40 characters without additional equipment.

Therefore, there is a limitation in that a speech-impaired person transmits his / her intention to the other party using a short message service, and when the other party does not check the text message or there is an error in SMS transmission, the communication cannot but fail. .

Accordingly, the mobile communication terminal needs a function of recognizing and expressing the speech expressions of the speech disabled as well as the general public to facilitate speech communication.

An object of the present invention is to provide a voice conversion system and a method of a mobile communication terminal for enabling a call to a voice with a counterpart by recognizing a movement of a speech impaired person into voice data.

According to a first aspect of the present invention, a voice conversion system of a mobile communication terminal includes a transmitter and a receiver for transmitting and receiving a signal through a mobile communication network; A display unit for outputting various display data and text messages generated by the mobile communication terminal; A key input unit to which a plurality of numeric / character keys and special character keys, a function key for interface with a user, a key for a call, a motion recognition start command, and an external key for distinguishing consonants / vowels are allocated; An acceleration sensor recognizing a movement of the mobile communication terminal; By performing various control operations to control the transmitter and the receiver to conduct a call, and performing a motion recognition and a consonant / vowel classification operation according to the pressing of the external key, letters and sentences are completed by a combination of consonants / vowels. A control unit for instructing speech conversion after the speech; And an audio converter converting the digital signal into voice according to the voice conversion instruction of the controller and transmitting the digital signal to the speaker, and converting the voice received through the microphone into a digital signal.

According to a second aspect of the present invention, there is provided a voice conversion method of a mobile communication terminal, the method comprising: providing a voice conversion function using a mobile communication terminal in which an acceleration sensor is built-in. If is formed, starting the movement recognition of the terminal through the acceleration sensor according to the pressing operation of the external key; b) the mobile communication terminal recognizing the consonants / vowels caused by the movement of the mobile communication terminal while distinguishing the consonants / vowels according to the pressing operation of the external key; And c) when the transmission sentence is completed through step b), the mobile communication terminal converts the transmission sentence into voice and transmits it to the receiving terminal by pressing a call button of a user.

In the above, step c) allows the receiving terminal to listen to the contents of the transmission sentence as voice of an announcement broadcast.

In the above, step b), the mobile communication terminal moves to display one consonant / vowel and then repeats the process of notifying that the display of the consonant / vowel is terminated by pressing the external key to complete the transmission sentence.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

First, a mobile communication terminal applied to an embodiment of the present invention will be described.

1 is a block diagram showing the internal configuration of a mobile communication terminal of the present invention, Figure 2 shows the appearance of a voice conversion system of a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication terminal 100 transmits and receives a signal to and from a mobile communication system including a base station, a mobile switching center, and a short message center. The receiver 120 includes an amplifier and a demodulator.

The display unit 150 may be formed of a liquid crystal display (LCD) or the like, and outputs various display data and text messages generated by the mobile communication terminal.

The key input unit 140 may include a keypad, a plurality of numeric / character keys, special character keys (문자, ＊), function keys for interface with a user, call buttons for calls, and end buttons. Etc. are provided.

In particular, as shown in FIG. 2, the key input unit 140 is provided with a separate external key 145 so that a speech-impaired person can start a motion recognition during a voice call and distinguish a consonant / vowel.

The controller 130 includes a digital signal processor (DSP), a microprocessor, and other circuits. The controller 130 controls the transmitter 110 and the receiver 120 so that a user of the mobile communication terminal may control the speaker 170 and the microphone 180. ) Allows you to make a voice or video call with another user.

In addition, the controller 130 has a built-in acceleration sensor (not shown) that can recognize the movement to recognize the movement in accordance with the pressing operation of the external key 145 and to recognize letters and sentences by a combination of consonants / vowels After that, the recognized content is converted into voice through a vocoder and transmitted to the receiving terminal.

The audio converter 190 converts a digital signal into voice and transmits it to the speaker 170 or converts a voice received through the microphone 180 into a digital signal.

The audio converter 190 includes a vocoder for modeling and using characteristics inherent in the voice signal, transmitting various parameters of the model, and reconstructing the voice signal again using the received parameters at the receiving terminal. have

The storage unit 160 includes a read only memory (ROM) and a voice storage unit for storing a plurality of programs and data.

Next, a voice conversion system of a mobile communication terminal according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.

3 is a flowchart illustrating a voice conversion method of a mobile communication terminal according to an embodiment of the present invention, and FIG. 4 illustrates an example of a voice conversion operation of a mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 3, in the voice conversion method of the mobile communication terminal according to the embodiment of the present invention, when a user who has a temporary or permanent language impairment presses a call button and a call path is formed with a receiving terminal, an external key 145 Press () to start the motion recognition of the terminal through the acceleration sensor. (S1, S2, S3)

When the user moves the mobile communication terminal to display consonants / vowels, the user presses an external key 145 when one consonant or vowel display is finished, and the controller 130 ends the consonant or vowel currently displayed and a new consonant or vowel. Allow the user to recognize the vowel display (S4).

For example, as shown in FIG. 4, when the user presses the external key 145, the controller 130 starts to recognize the movement of the terminal. When the user ends the consonant display of 'ㅇ', the external key 145 is displayed. After pressing, perform the vowel display of 'ㅏ', and when the vowel display of 'ㅏ' is finished, press the foreign key (145) and then perform the consonant display of 'b', and press the foreign key after the consonant display of 'b' is finished Press (145).

In this way, the control unit 130 can recognize one word 'not' and finally complete one transmission sentence of 'hello'.

When the user completes the transmission sentence 'hello', the user presses a call button to instruct transmission to the receiving terminal, and the control unit 130 detects the press of the call button to instruct voice conversion of the transmission sentence.

That is, when the user presses the call button, the controller 130 confirms that one transmission sentence is completed by a combination of consonants / vowels through the acceleration sensor and the external key 145, and through the vocoder of the audio converter 190. Transmitting sentences are converted to voice (S5, S6, S7).

In this case, since the user is a language impaired, the audio converter 190 converts the voice like a guide broadcast, and the controller 130 transmits the voice converted by the audio converter 190 to the receiving terminal (S8).

Therefore, the receiving terminal can check the contents to be delivered by the user through voice of the announcement broadcast.

The drawings and detailed description of the invention are merely exemplary of the invention, which are used for the purpose of illustrating the invention only and are not intended to limit the scope of the invention as defined in the appended claims or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, in the voice conversion method of the mobile communication terminal according to the present invention, a user who has a temporary or permanent speech impairment can perform his or her expression more accurately and quickly to a receiving terminal through a mobile communication terminal equipped with an acceleration sensor and an external key. It can be effective.

Claims (5)

A transmitter and a receiver for transmitting and receiving various signals through a mobile communication network; A display unit for outputting various display data and text messages generated in the mobile communication terminal; A key input unit to which a plurality of numeric / character keys, special character keys, function keys for interfacing with a user and a key for a call, a motion recognition start command, and an external key for distinguishing consonants / vowels are allocated; An acceleration sensor recognizing a movement of the mobile communication terminal; By performing various control operations to control the transmitter and the receiver to conduct a call, and performing a motion recognition and a consonant / vowel classification operation according to the pressing of the external key, letters and sentences are completed by a combination of consonants / vowels. A control unit for instructing speech conversion after the speech; The audio converter converts the digital signal into voice according to the voice conversion instruction of the controller and sends it to the speaker, and converts the voice received through the microphone into a digital signal. Voice conversion system of a mobile communication terminal comprising a. The method of claim 1, The audio converter converts and outputs the voice of the announcement using the characteristics inherent in the voice signal, and the mobile terminal includes a vocoder for restoring the voice signal again using the received parameters. Voice conversion system. In a method for providing a voice conversion function using a mobile communication terminal with an embedded acceleration sensor, a) starting a movement recognition of the terminal through the acceleration sensor according to a pressing operation of an external key when the mobile communication terminal is formed with a call path; b) the mobile communication terminal recognizing the consonants / vowels caused by the movement of the mobile communication terminal while distinguishing the consonants / vowels according to the pressing operation of the external key; And c) when the transmission sentence is completed through step b), converting the transmission sentence into voice by transmitting a call button of the user and transmitting the same to the receiving terminal; Voice conversion method of a mobile communication terminal comprising a. The method of claim 3, In the step c), the receiving terminal listens to the contents of the transmission sentence as a voice of a guide broadcast. The method of claim 3, In the step b), after the mobile communication terminal moves to display one consonant / vowel, the process of repeating the process of notifying that the display of the consonant / vowel is terminated by pressing the external key is completed to complete the transmission sentence. Voice conversion method of communication terminal.

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