KR100436286B1 - Mobile communication terminal with Braille input apparatus for the blind - Google Patents

Abstract

PURPOSE: A wireless terminal for the visually disabled capable of braille input is provided to easily make out a short message data by using a mobile phone, and convert a received short message into voice data. CONSTITUTION: A central processing unit(507) controls a whole system. A braille input unit(501) receives braille information through a braille input button formed at a terminal body. A braille-to-character converter(502) converts braille information inputted through the braille input unit(501) into characters. A voice synthesizer(503) converts the characters, figures inputted through a general number button(305), and information received through a wireless terminal receiving and transmitting module into a voice. A voice output unit(504) outputs the converted voice to speakers embedded in the terminal body. A non-volatile memory(513) stores information transmitted and received through the wireless terminal receiving and transmitting module. A character display window operates with a wireless terminal under control of the central processing unit(507). An input and output control unit is connected with the central processing unit(507) for controlling output of input and output devices installed at the terminal body.

Description

Mobile terminal with Braille input apparatus for the blind}

The present invention relates to a wireless terminal for the visually impaired, which is capable of braille input. In more detail, the present invention provides an interface device for the visually impaired to use a portable wireless terminal, so that text messages as well as general voice calls can be exchanged. Braille input that implements mechanical structure and operation system to enable users to obtain information by recognizing various contents as voice signal, so that people can enjoy the same benefits as general people use portable wireless terminal. This relates to a wireless terminal for the visually impaired.

Until now, the visually impaired people could not use the functions of various wireless terminals such as text messaging service and wireless internet other than the telephone call function which is a basic function of the portable wireless terminal using the numeric keypad.

In some conventional products or patents, it is possible to make a phone call correctly by providing a function such as a braille or a password on the numeric buttons for the visually impaired to make it easier for the visually impaired to press the numbers, and by outputting the numerical values of the numeric buttons to be pressed by voice. A method of confirming whether a number has been pressed has been proposed.

However, as described above, the functions of modern wireless terminals are not only simple voice communication but also convenient wireless mail transmission / reception function using Short Message Service (SMS), text-based Internet service using wireless Internet, and the like. It is developing rapidly.

However, most of the current portable wireless terminals use a text display window made of liquid crystal display (LCD) as a means of outputting text, which is not available to the visually impaired.

Research on the technology of outputting the contents of the text display window by the voice of some communication terminal manufacturers has been conducted and some commercialization has been made, but in this case, the decisive problem is the input of the text as a problem.

In the case of the current character input method, one key represents multiple spellings, such as a when the button 1 is pressed once and a button is pressed twice when the alphabet is used. A, B, ..., ㅏ, ㅑ etc. are inputted according to the number of presses corresponding to a plurality of phonemes to 10 buttons from 1 to 0, respectively.

Such an input method has been difficult to use for the elderly who are blind, as well as the elderly who are deficient in vision among the non-disabled.

In addition, due to the difficulty of entering text, the non-disabled people can easily enter the phone number by using the phone book of the portable wireless terminal, which is conveniently used, and simply call the other party by entering the name of the person they are looking for. Although they enjoy the convenience, such as the visually impaired people do not even know that such a function due to the hassle of the method of inputting the text, even if you know that the actual use was impossible.

In order to solve this problem, the present invention uses a conventional method, such as a number input for a telephone call, and in addition, inputs all characters freely using Braille, which is a character system most familiar to the visually impaired. Visually impaired people have been improved by adding a device that allows them to do this, and providing a special user interface that is easy to use. The present invention also provides a portable wireless terminal for the visually impaired who can use Braille input to conveniently send and receive text messages, utilize various additional functions of the portable wireless terminal including the use of a phone book, and use various kinds of information using the wireless Internet. This may,

The technical problem to be achieved by the present invention is to develop a new interface method to make the existing portable wireless terminal convenient for the visually impaired, and more specifically as follows.

First, it is necessary to switch the key input method for character input. Most of the existing portable wireless terminals are designed to input characters according to the number of times that a person without visual impairment presses using one key, so it is very inconvenient for the visually impaired and moreover, whether or not a desired character is entered is a text display window (LCD). You can see only if you see. Therefore, to implement a keyboard input method and a method of confirming the input contents to ensure faster and more accurate for visually impaired persons who cannot see the character display window,

Second, the non-disabled person can easily take notes using a writing tool on paper during the call, but the visually impaired person was able to rely on their memory or with the help of the non-visually handicapped person. In the present invention, using the braille input device of the terminal to hold the terminal with one hand, the other hand to take notes during the call,

Third, there is a need for a method for visually impaired persons to recognize a text message received from a counterpart as well as sending a phone number and a text input to the counterpart. Therefore, to convert the received data in the form of text into a voice signal that is easy for the visually impaired to implement and output it;

Fourthly, the general portable wireless terminal includes various additional functions and can be accessed by using a menu method. However, the visually impaired person is hard to use and can know the current terminal status while using the portable wireless terminal. no method. Therefore, in the method of using various additional functions and contents, the interface method is implemented to be easily used by the starting person,

Fifth, while making it compact and lightweight for the convenience of the visually impaired, it is implemented to include the functions of a general portable wireless terminal.

1 is a block diagram of a braille used by a blind person

2 is a block diagram of a braille keyboard used in the present invention

Figure 3 is a front view of the wireless terminal for the blind using a two-handed braille input function according to the present invention

Figure 4 is a detailed rear view of the wireless terminal for the blind using a two-handed braille input function according to the present invention

Figure 5 is a block diagram of a wireless terminal for the visually impaired employing another one-hand braille input function according to the present invention

Figure 6 is a front view of the wireless terminal for the visually impaired employing another type of one-handed braille input function according to the present invention

7 is a detailed rear view of a wireless terminal for the visually impaired employing another type of one-handed braille input function according to the present invention.

8 is a system configuration diagram of a wireless terminal for the visually impaired employing a two-handed braille input function.

9 is a system configuration diagram of a wireless terminal for the visually impaired employing a two-handed braille input function.

Figure 10 is a flowchart of braille input-to-character conversion and speech synthesis function

<Explanation of symbols for the main parts of the drawings>

One point 101, two points 102, three points 103, four points 104, five points 105, six points 106 of the Braille configuration. ), An example 107 of characters represented by Braille, one-point button 201, two-point button 202, three-point button 203, four-point button 204, five-point button 205, six-point Button 206, space key 207, two-handed terminal body 300, braille input button 301, enter button 302, antenna 303, general number input button 305, battery pack 306, Microphone 307, 307 ', Text Display 308, Speaker 309, 309', Telephone Call Control Switch 310, Music Player Control Switch 311, Earphone Terminal 312, Menu Scroll Scroll Switch 313, Back Space (auxiliary function key) 314, one-handed terminal main body 400, handle 401, space key 402, 1/4 point input button 403, 2/5 point input button 404, 3 / 6 point input button 405, enter button 406, speaker (407, 407 '), switch input mode switch 408, control button (409), earphone jack (410), necklace (411), Antenna 412, memory card slot 413 for data storage, secondary enter key 414, necklace ring 415, battery 418, microphone 420,420 ', quarter point auxiliary input button 421, 2/5 point auxiliary input button 422, 3/6 point auxiliary input button 423, braille input unit 501, braille-character (icon) conversion unit 502, voice synthesis unit 503, voice output unit (Embedded receiver) (504,804), central processing unit (CPU) (507, 807), wireless terminal transceiver module (CDMA, GSM) (508, 808), I / O controller (512, 812), nonvolatile memory (513, 813), usb / m ( 515,815), usb / s (516,816), IrDA (517,817), expanded memory (518,818)

The present invention relates to a wireless terminal for the visually impaired, which is capable of braille input. In more detail, the present invention provides an interface device for the visually impaired to use a portable wireless terminal, so that text messages as well as general voice calls can be exchanged. Braille input that implements mechanical structure and operation system to enable users to obtain information by recognizing various contents as voice signal, so that people can enjoy the same benefits as general people use portable wireless terminal. This relates to a wireless terminal for the visually impaired.

The present invention relates to a mechanical form for visually impaired persons to conveniently input text using braille principles, a part for converting input braille data into text for transmission or data management, and a voice for converted text. It is composed of a part that outputs a text message and a part that reads a text displayed on a text display window of a conventional wireless terminal by voice in order to use various menu configurations of the received text message and the portable wireless terminal itself. The composition and operation of each part will be described.

1) braille input means

Braille is a writing system for the visually impaired that consists of six dots. Since there are six points, the input method is input by pressing one point, two points, or six points at the same time as if you play the piano keyboard. Each of these is called a chord because it is like playing the piano keyboard.

Figure 1 shows an example braille consisting of six braille. As shown in the picture, it is called 1 point, 2 points, 3 points from the top left, and 4 points, 5 points, 6 points from the top right. As an example of how to use Braille, "a" in "Ganda" is a form in which only four points protrude. In case of "c", when 2 and 4 points protrude, visually impaired people recognize this as "c".

As a general method of inputting such braille, a braille keyboard of the type shown in FIG. 2 is used. In FIG. 2, there are three buttons 201, 202, 203, 204, 205, 206 on the left and right sides, respectively, and the left forefinger, stop, and ring finger are placed at the positions of the 1, 2, and 3 point buttons 201, 202, 203, respectively, , And put the ring finger on the 4, 5, 6 points button (204, 205, 206), respectively, the thumb of either side is placed on the space bar 207 and the braille is input. For example, if you want to input "a", press and release the four-point button 204, and if you want to enter "c", press and release the buttons 202 and 204 corresponding to two and four points. Use the method.

In the present invention, the braille input keyboard 200 of the type that allows the visually impaired to directly enter a braille is convenient and free to enter characters without looking ahead by using the braille principle as a character input device.

2) Means for converting input braille into text (text) and means for speech synthesis

8 and 9 show the configuration of a general system to be configured in the present invention. The braille input unit 501 represents a braille input means constituted by the braille input buttons described above. Braille entered through this means is immediately converted into characters. Braille consists of 6 dots, so 2 ⁶ = 64 possible combinations. However, in case of Hangul, 24 letters, lowercase letters, 26 uppercase letters, 10 numbers, and some special characters add up to 64 characters. Braille is defined to correspond to letters (as defined in the Ministry of Culture and Sports Notice No. 1997-58 (1999.12.17)). ) Needs to be converted to characters. The text (or phoneme) converted into characters in the braille-character conversion unit 502 is sent to the voice synthesis unit 503 and outputs directly to the voice through the voice output unit 504, and the visually impaired person who is inputting the It allows you to check in real time whether the entered character was entered without error. At the same time, the output of the braille-to-character converter 502 is input to the existing portable wireless terminal transceiver module 508 (CDMA or GSM, etc.) to be input in the same form as the character input from the general portable wireless terminal.

3) Creating and sending text messages

In order to compose a text message, if a braille is input using a braille input means, a character or a phoneme input by voice is output in real time, so that the accuracy of the input sentence can be confirmed. When the input of the sentence is completed, the telephone number to be transmitted is input and the command to transmit the signal is transmitted through the existing portable wireless terminal transceiver module 508.

4) Confirmation of received text message

The received text message is transmitted to the central processing unit (CPU) 507 through the conventional portable wireless terminal transceiver module 508, and the central processing unit 507 notifies the user that the message has arrived by voice. When the user wants to check the received text message, the user accesses and plays the text message through a predetermined user interface, and the received text message is transmitted in the form of text (text) in the existing portable wireless terminal transceiver module 508. It is output and sent to the voice synthesis unit 503 to convert the voice to the user to hear the contents of the text message to the voice.

5) Use of various menus to utilize terminal functions

The configuration and functions of the menu are defined by various functions provided by the existing portable wireless terminal transceiver module 508. The various menus provided by the conventional portable wireless terminal transceiver module 508 are displayed on the text display window 511 through the CPU 507 and the displayed contents are displayed on the text synthesizer 503 as text (text). To be output as voice. The user may select a desired menu by using a braille input button as a control button, or in the case of the terminal of FIG. 3, by using a button of a general portable wireless terminal at the rear or a combination of braille input buttons on the front of FIG. 2. Allows you to control menus by the control commands that are configured.

What is proposed in the present invention is that the menu of the conventional portable wireless terminal is displayed in the text display window only by the character that the visually impaired use is uncomfortable, by reading the contents of the text display window various functions of the portable wireless terminal without any inconvenience. The purpose is to make it easy to use.

Hereinafter, a wireless terminal for the visually impaired, which is capable of braille input according to the present invention, will be described in detail through embodiments.

1) Wireless terminal for the visually impaired with two-handed braille input function

When making a call, you can make a call using the general number input button 305 formed on the back of the terminal body 300. Alternatively, by pressing the six braille input buttons 301 configured on the terminal body 300, The phone number is called like a normal cell phone. At this time, the braille input information of pressing the braille input button 301 is inverted by the braille-character conversion unit 502 to be converted into character information, and is output through the voice synthesis unit 503 to the speakers 309 and 309 '. At the same time it is output to the character display window (308).

When using various contents (service functions provided by a normal mobile phone), a menu moving scroll switch 313 (corresponding to a "menu button" of a mobile phone) formed on the terminal body 300 is used to perform a desired function as a normal mobile phone. Choose. The selected menu is directly output to the speaker through the voice synthesizer 503. The user listens to the voice output from the terminal, checks the menu selected by the user, and accurately selects the menu to be used by the user using the space key 207 and the enter button 302 to use various contents like the general user. do.

Pressing the space key 207 (functioning of the arrow button formed around the menu button of a general mobile phone) moves to the next menu, and pressing the enter button 302 (functioning of the selection button of a general mobile phone) goes to the sub menu. Will enter.

When sending a text message, select a menu for text message transmission as described above, and then input the desired text message using the six braille input buttons formed on the front of the terminal body 300 (the input character is Braille). -The voice is output in real time through the character conversion unit 502 and the voice synthesis unit 503.) After pressing the enter button 302 to complete the input, input the mobile phone number of the recipient to which the input message is to be sent. Then press the enter button 302, the input character is transmitted through the wireless terminal transmission and reception module 508.

When a call is received from the outside, it is used like a normal mobile phone. When checking a text message, a text message is notified when a text message arrives through a speaker, and the user listens to the voice and selects the menu described above. When the text message confirmation menu is selected through the method, the received message is output as a voice to confirm the received message.

As described above, the various contents provided by the wireless terminal according to the present invention are programmed as a general telephone, and thus detailed descriptions are omitted since it is a general technology that can be known to anyone in the art.

However, the technical content for outputting a menu selected for the visually impaired by voice is different, but this is also a conventional technique and a detailed description thereof will be omitted.

2) Wireless terminal for the visually impaired with one hand braille input function

In the case of a flat surface or right handed, the terminal main body 400 is placed on the left hand, and then the right hand is placed on the terminal main body 400, and the braille formed on the front of the terminal main body corresponding to the thumb, index finger, middle finger, and ring finger respectively. When the input is completed by inputting a phone number using the input button, press the enter key 406 where the little finger is located to make a call.

If the user grips the front of the terminal body 400 toward the palm of the hand, the switch input mode switching switch 408 may be operated to prevent operation of the braille input switches 402, 403, 404, 405, and 406 on the front surface, which may occur when gripping. The round paper part of the terminal main body 400 comes to the palm to prevent the switch malfunction, and the finger is gripped so as to be located at the bend 401, and then the back of the terminal main body 400 using three fingers of the index finger, middle finger, and ring finger. When the input is completed by using the auxiliary braille input buttons (421, 422, 423) formed in the operation by the auxiliary enter key 414 where the little finger is located to make a call like a normal mobile phone.

At this time, the braille information input through the braille input button 301 is inverted by the braille-character conversion unit 502 and converted into character information, and is output through the voice synthesis unit 503 to the speakers 309 and 309 '.

First, tap the point corresponding to the left three points of the braille, and then tap the point corresponding to the right column, so that one braille can be entered twice. For example, when a user wants to input “c”, the user first presses and releases the two-point button 404 and then presses and releases the four-point button 403 to automatically recognize that two or four points are pressed. If the left or right column has nothing, for example "a", only 4 points should be pressed, so the left column has nothing to press. In this case, the control button 409 is configured to be pressed. Therefore, when the user wants to input "a", the control button 409 is pressed and released, and then the 4 point button 403 is pressed and released again. When you space a single character, use the space key instead of the control key.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a configuration diagram of a braille used by the visually impaired, FIG. 2 is a configuration diagram of a braille keyboard used by the present invention, and FIG. 3 is a detailed front view of a wireless terminal for the visually impaired employing a two-handed braille input function according to the present invention. 4 is a detailed rear view of a wireless terminal for a visually impaired person who adopts a two-handed braille input function according to the present invention, and FIG. 5 is a block diagram of a wireless terminal for a visually handicapped person who employs another type of one-handed braille input function according to the present invention. 6 is a detailed front view of a wireless terminal for the visually impaired adopting another type of one-handed braille input function according to the present invention, and FIG. 7 is a wireless terminal for the visually impaired employing another type of one-handed braille input function according to the present invention. 8 is a system configuration diagram of a visually impaired wireless terminal employing a two-handed braille input function, and FIG. Fig. 10 shows a flow chart of the braille input-to-character conversion and speech synthesis function, wherein the position 101 of one point, the position 102 of two points, and the position 103 of three points of the braille configuration are shown. , Four-point position 104, five-point position 105, six-point position 106, an example of characters represented by Braille 107, one-point button 201, two-point button 202, 3-point button 203, 4-point button 204, 5-point button 205, 6-point button 206, space key 207, two-handed terminal main body 300, braille input button 301, enter button 302, antenna 303, general number input button 305, battery pack 306, microphone 307, 307 ', character display window 308, speakers 309, 309', telephone call control switch 310, music Playback device control switch 311, earphone terminal 312, menu movement scroll switch 313, back space (auxiliary function key) 314, one-handed terminal main body 400, handle 401, space key 402 ), 1/4 point input button 403, 2/5 point input button 404, 3/6 point input button 405, enter button 406, speaker 407, 407 ', switch input mode switch 408, control button 409, earphone jack 410, necklace 411, antenna 412, memory card slot 413 for data storage, secondary enter key ( 414, necklace ring 415, battery 418, microphone 420, 420 ', 1/4 point auxiliary input button 421, 2/5 point auxiliary input button 422, 3/6 point auxiliary input button ( 423, braille input unit 501, braille-character conversion unit 502, voice synthesis unit 503, voice output unit (built-in receiver) 504, 804, central processing unit (CPU) (507, 807), wireless Terminal transceiver module (CDMA, GSM) (508,808), I / O controller (512,812), nonvolatile memory (513,813), usb / m (515,815), usb / s (516,816), IrDA (517,817), expansion memory (518,818 ).

According to the present invention, a system of a wireless terminal for the visually impaired person who is capable of braille input includes braille input means for receiving a braille using a principle of braille that a blind person is accustomed to, and a voice output of the input braille, storing as data, or a function of a mobile phone. Braille-to-character converting means for converting into text message sending data, speech synthesis means for outputting the input character or the character to be displayed or displayed on the character display window, and listening to the output voice menu. As a control means for enabling a user, and as an interface means for transmitting or receiving a text message through a portable wireless terminal module like a normal wireless terminal,

The braille input means corresponds to 1, 2, 3 points of the left hand detection, middle finger, and ring finger for braille input consisting of six points, and 4, 5, 6 points of the right hand finger, middle finger, and ring finger. Place braille input keys corresponding to the input of braille with two hands.

As another braille input means, it is possible to use a handset and a handset built in a portable wireless terminal to input text to memo the contents of a call with one hand even during a call. Enter three Braille information, followed by 4, 5, 6 Braille information to express one phoneme.When expressing one phoneme, place a separate control button to display 1,2,3 or 4,5, When the control button is pressed in order to press 6 points, the vacant seats are expressed so as to express one phoneme in combination with 1,2,3 points or 4,5,6 points.

As shown in FIG. 10, when the braille is input through the braille input means, the braille-character conversion means sequentially compares and determines whether the input braille is a command, an abbreviation, an abbreviation, a special character, or a number. If the input character is a command, the command will be processed. If it is an abbreviation, abbreviation, or special character, the abbreviation or abbreviation will be reversed. In the case of numerical inversion, if the input braille is determined to be none of the commands, abbreviations, abbreviations, special characters, and numbers through the comparison operation, the character inversion is processed by determining that it is a general character. Characters processed by inversion (abbreviation, abbreviation, special character, number, general character) are judged by comparing the completion of letters in the second order. If not, the phoneme is changed to a letter and sent to the speech synthesis unit for voice synthesis. And then output the voice information to the memory.

The voice synthesizing means converts the braille data input through the braille input means into general text data so as to read the converted general text data in real time so that the user can immediately check which text is pressed through a voice signal. To ensure that the time is entered or corrected correctly.

In the menu output method that is used to use various functions provided in the portable wireless terminal for the visually impaired, it is outputted as voice from the main menu, and then the user presses the space key to move to the next menu. It enters the sub menu and outputs the first menu item of the sub menu by voice so that the user can know which menu is currently in the menu when the menu is moved.

In addition, in order to visually recognize the text message received from the other party to read the text message information received by voice to recognize the contents.

As shown in FIGS. 3 and 4, the wireless terminal for the visually impaired employing the two-handed braille input function configured on the basis of the system as described above,

A terminal body 300 having a regular antenna 303 having a rectangular parallelepiped shape, six braille input buttons 301 arranged side by side like a piano keyboard at the front center of the body 300, and the braille input buttons ( Enter button 302 formed on the right side of the 301, the menu scroll scroll switch 313 formed on the left side of the braille input button 301, the position opposite to the enter button 302, and the menu scroll scroll switch A back space button 314 formed under the 313,

A general number input button 305 that is tiled like a normal telephone on a recessed concave in a square shape at the rear center upper end of the terminal body 300, and is input on an upper portion of the general number input button 305. Character display window 308 for outputting a character, a removable battery pack 306 is formed in the lower portion of the number input button 305 to supply power to the terminal, and the upper and lower surfaces of the front and rear of the terminal body 300 It is composed of a speaker (309,309 ') and a microphone (307,307') that is built-in to serve as a handset, the control system is built in the inside of the terminal body 300 so that the above components can perform a corresponding function have.

As shown in FIG. 8, the control system receives braille information through a central processing unit (CPU) 507 for controlling the entire system and a braille input button 301 provided in the terminal body 300. Through an input unit 501, a braille-character (phoneme) conversion unit 502 for converting braille information input through the braille input unit 501 into a character, and through the braille-character (phone) conversion unit 502 A voice synthesizer 503 for converting the number of characters inputted through the converted character and the general number input button 305 and information received from the outside through the wireless terminal transceiver module 508 and the voice synthesizer 503. A voice output unit 504 for outputting a signal converted into a voice from the voice signal) to the speakers 309 and 309 'built in the lower part of the terminal body 300, and the character information converted through the braille-character conversion unit 502 or Voice information input through microphones 307 and 307 'is transmitted to the outside and received from outside A conventional portable wireless terminal receiving module (CDMA or GSM) 508 for receiving information, a nonvolatile memory 513 for storing information transmitted and received through the conventional portable wireless terminal receiving module 508, and Under the control of the central processing unit 507, the character display window 308 for character confirmation acting as a normal wireless terminal, and the output of the input and output devices configured in the terminal main body 300 connected to the central control unit 507 An input / output control unit 512 for controlling is constructed.

As described above, the wireless terminal for the visually impaired adopting the two-handed braille input function configures the character display window 308 and the number input button 305 on the rear of the terminal body 300, so that not only the visually impaired but also the non-disabled people It is configured to be easy to use the wireless terminal, and also to directly dial the phone number, check the received text message or input the phone, not the process of entering text, such as writing a text message or address book If you want to search for numbers, you can use the existing number buttons and menu call and selection buttons.

As shown in FIGS. 5 to 7, the wireless terminal for the visually impaired employing another type of one-handed braille input function according to the present invention,

One side is rounded to facilitate gripping with one hand, and the tile side has a terminal body 400 having a bent portion 401, and a terminal body for inputting braille while the user grips the terminal body 400 with one hand. It is listed on the front of 400, the space button 402 formed at the position of the thumb when holding, the 1/4 point input button 403 formed at the position of the index finger, the 2/5 point input button ( 404, three braille input buttons consisting of a 3/6 point input button 405 formed in the position of the ring finger, the enter button 406 formed in the position of the baby, and one side bent portion on the back of the terminal body 400 401, the same as the braille input button, the 1/4 point auxiliary input button 421, 2/5 point auxiliary input button 422, 3/6 point auxiliary corresponding to the detection, stop, ring finger Three auxiliary buttons for braille input having an input button 423 and the image of the terminal body 400 The control button 409 is formed on one side, that is, in the direction of the thumb when the user grips the terminal, and performs a function of making one column empty in a braille structure forming one character in two columns, and the control button. And a switch input mode switching switch 408 for switching between input modes so that the user can input the desired input button (braille input button or braille input auxiliary button) at the time of braille input. A secondary enter key 414 formed below the bent portion 401 of the terminal body 400,

In general, an antenna 412 formed on an upper portion of the terminal body 400 and a memory card slot 413 for storing data, such as a mobile phone, and a handset speaker 407 and 416 built into upper and lower sides of the front and rear surfaces of the terminal body 300. And a microphone 406 and 420 and a removable battery 418 for supplying power formed at a lower rear side of the terminal body 400, and the above components perform the corresponding functions inside the terminal body 300. The control system is established to do this.

As shown in FIG. 9, the control system receives the braille information through a central processing unit (CPU) 807 for controlling the entire system and a braille input button or a braille input auxiliary button formed on the terminal body 400. Braille input unit 801, Braille-character converting unit 802 for converting the braille information input through the braille input unit 801, and the characters and wireless converted through the braille-character conversion unit 502 The voice synthesizer 803 for converting information received from the outside through the terminal transmission / reception module 808 into voice, and the signal converted into voice from the voice synthesizer 803 is built in the lower portion of the terminal body 400. The voice output unit 804 outputs to the speakers 420 and 420 ', and the characters converted by the braille-character conversion unit 802 are transmitted to the outside through the antenna 412, and externally through the antenna 412. Number of conventional portable wireless terminals that receive the received information A module 808, a nonvolatile memory 813 for storing information transmitted and received through the conventional portable wireless terminal receiving module 808, and an input / output device connected to the central controller 807 and configured in the terminal body. The input / output controller 812 is configured to control the output.

General functions such as telephone calls, menu settings, and data transmission / reception methods use the same system as conventional portable terminals (mobile phones), and thus detailed descriptions thereof will be omitted.

In the wireless terminal for the visually impaired according to the present invention, an earphone terminal and an MP3 player may be additionally configured and used like a general mobile phone.

The present invention has been opened a way to enjoy the same benefits that the general public enjoys using a portable wireless terminal by providing a visual interface for the blind to use a portable wireless terminal. Even the visually impaired can not only make and receive calls, but also receive various cultural benefits by using various information and credit contents that can be obtained by using a mobile phone, and gain access to the convenient world of developing wireless communication. There is an opportunity to do so.

More specifically, the visually impaired person can easily write not only voice information but also text message data by using a mobile phone and send it to the other person. There is a way. In addition, since the phone call can directly operate the braille keyboard installed in the present invention, there is a way to take notes during a call that was not previously possible. It can be said that there is an effect that gives convenience to the visually impaired.

In addition, various functions provided in the conventional portable wireless terminal are provided so that the visually impaired user can easily use it.

Some interfaces are more effective than existing portable wireless terminal devices, so the new concept of I / O system considering the visually impaired will be a factor that can create more added value.

Claims (6)

In the system of the wireless terminal for the visually impaired, which is capable of braille input, Braille input means for receiving the braille using the principle of braille that the blind person is familiar with, and using the functions of the inputted braille voice output, data storage, or the function of a mobile phone. Braille-to-character converting means for converting text message sending data, speech synthesizing means for outputting the input characters or characters to be displayed or displayed on the text display window, and listening to the output voice menu to perform a desired operation. Control means for enabling the user, interface means for transmitting or receiving a text message through a portable wireless terminal module as in a conventional wireless terminal, The braille input means corresponds to 1, 2, 3 points of the left hand detection, middle finger, and ring finger for braille input consisting of six points, and 4, 5, 6 points of the right hand finger, middle finger, and ring finger. It is configured to input Braille with two hands by placing braille input key corresponding to When the braille is input through the braille input means, the braille-to-character converting means sequentially compares and determines whether the first inputted braille is a command, an abbreviation, an abbreviation, a special character, or a number, and according to the input braille information. Processing or reverse point processing is performed. The reverse processed letter (abbreviation, abbreviation, special character, number, general character) is judged to compare the completion of the character secondarily. And, the system of the wireless terminal for the visually impaired who is braille input, characterized in that it is sent to the voice synthesizer, the voice is synthesized immediately output to the voice, and then stored in the memory. delete delete delete In the wireless terminal for the visually impaired with braille input, a terminal body 300 having a conventional antenna 303 in the shape of a rectangular parallelepiped and six braille arranged side by side like a piano keyboard in the front center of the body 300. An input button 301, an enter button 302 formed on the right side of the braille input button 301, a left side of the braille input button 301, a menu move formed at a position opposite to the enter button 302 A scroll switch 313, a back space button 314 formed under the menu scroll scroll switch 313, A general number input button 305 that is tiled like a normal telephone on a recessed concave in a square shape at the rear center upper end of the terminal body 300, and is input on an upper portion of the general number input button 305. Character display window 308 for outputting a character, a removable battery pack 306 is formed in the lower portion of the number input button 305 to supply power to the terminal, and the upper and lower surfaces of the front and rear of the terminal body 300 It is composed of a speaker (309,309 ') and a microphone (307,307') that is built-in to serve as a handset, the inside of the terminal body 300, the central processing unit (CPU) 507 for controlling the entire system, and the terminal body ( A braille input unit 501 for receiving braille information through the braille input button 301 provided at 300 and a braille-to-character conversion unit for converting braille information input through the braille input unit 501 into characters. 502 and the braille characters A voice synthesizer 503 for converting the text converted through the return unit 502 and the number input through the general number input button 305 and information received from the outside through the wireless terminal transceiver module 508; A voice output unit 504 for outputting a signal converted into a voice from the voice synthesis unit 503 to the speakers 309 and 309 'built in the lower portion of the terminal body 300, and the braille-character conversion unit 502; A conventional portable wireless terminal receiving module (CDMA or GSM, etc.) 508 for transmitting the converted text information or voice information input through the microphones 307 and 307 'and receiving information received from the outside, and Non-volatile memory 513 for storing information transmitted and received through the conventional portable wireless terminal receiving module 508, and a character display window for character confirmation that operates like a normal wireless terminal under the control of the central processing unit 507 308, and the central agent Wireless terminal for the visually impaired who is capable of braille input employing a two-handed braille input function, which is connected to the device 507 and controls the output of the input / output devices configured in the terminal body 300. . delete