KR20050090683A - Mobile phone for blind man and using method thereof - Google Patents

Abstract

The present invention imprints Braille for the visually impaired on the keypad of the mobile terminal, and guides the input key by voice when a certain key is pressed, and outputs the execution result according to the key input by voice. The present invention relates to a mobile terminal for the visually impaired and a method of using the same, which are configured to be convenient for the visually impaired to use the mobile terminal by converting the text message into a general text when the text message is created.

The mobile terminal 200 according to the present invention includes a program memory 202, a key input unit 204, an LCD display unit 206, a data storage unit 208, a mode state storage unit 210, a sound source storage unit 212, Subscriber information storage 214, microprocessor 216, DSP (Digital Signal Processor) 218, baseband converter 220, speaker 222, microphone 224, antenna 226, RF signal processor 228, etc., and

According to the present invention, the frequency of use of the visually impaired with respect to the use of the mobile terminal can be increased, and the subscription of the mobile communication service can be increased.

Description

Mobile terminal for visually impaired person and using method

The present invention relates to a mobile terminal for the visually impaired and a method of using the same, and more particularly, to emboss the braille for the visually impaired on the keypad of the mobile terminal, and a key input when any key is pressed. Mobile terminal for the visually impaired, which is configured to be convenient for the visually impaired to use the mobile terminal by outputting the execution result according to the key input as a voice and converting the text into Braille characters when creating a text message in Braille; It is about how to use.

As communication technology develops, mobile terminals provide us with a convenient life. That is, the mobile phone not only performs phone calls with the other party but also receives multimedia data including weather, stocks, music, and the like through the wireless Internet.

1 is a configuration diagram schematically showing a configuration of a mobile communication system capable of a wireless Internet including a conventional wireless call.

The conventional mobile communication system 100 includes a configuration including a mobile terminal 110, a wireless base station 120, a mobile switching center 130, the Internet 140, a wireless Internet server 150, a wireless Internet database 160, and the like. Have

The mobile terminal 110 is a terminal that not only performs a phone call when a call is connected by inputting a phone number of the other party, but also connects to a wireless Internet server 150 and transmits and receives various data information.

The wireless base station 120 performs transmission and reception of a wireless signal to the mobile terminal 110, conversion and encryption / decryption of a communication protocol, and performs a function of controlling an allocation of a communication channel to the mobile terminal 110.

The mobile switching center 130 processes the call request requested by the mobile terminal 110 via the wireless base station 120. The mobile switching center 130 is wired to the wireless internet server 150 so that the mobile terminal 110 can wirelessly access the wireless internet server 150.

The Internet 140 is a communication network that provides a communication connection path for the mobile terminal 110 to access the wireless Internet server 150.

The wireless internet server 150 is a server that provides a multimedia service such as downloading game programs or multimedia data to the mobile terminal 110. The wireless internet database 160 stores data for multimedia services.

That is, in the mobile communication system 100 configured as described above, the wireless Internet server 150 is a multimedia service for downloading video data, image data, game programs, etc. to the mobile terminal 110 connected wirelessly through the mobile communication network To provide.

The mobile terminal 110 transmits and receives a voice signal for a telephone call with a counterpart terminal through a mobile communication network according to a user's key input, and accesses the wireless Internet server 150 to receive various information.

Therefore, the mobile terminal 110 is used from students to adults and the elderly, and the visually impaired people also use the mobile terminal 110 to obtain a lot of information including communication.

However, in the case of the visually impaired, it is difficult to perform a telephone call unless the keypad provided in the mobile terminal 110 is properly understood, and it is quite inconvenient to use because the key input result cannot be checked visually even if it is familiar.

In addition, even if the user is familiar enough to use the keypad, he merely enters a phone number to perform a phone call, and there is a problem in that he cannot use other additional services or wireless Internet provided by the mobile communication network.

The present invention for solving the above problems, the braille for the visually impaired on the keypad of the mobile terminal, and guides the input key by voice when any of the keys are pressed, and the execution result according to the key input It is an object of the present invention to provide a mobile terminal for the visually impaired and a method of using the same, which are output in voice and converted into general text when the text message is written in Braille and is transmitted.

In order to achieve the above object, the present invention provides a mobile terminal configured to be convenient for the visually impaired, comprising a plurality of key buttons marked with numbers, letters and symbols, each key button has the numbers, the letters and the A key input unit in which a braille corresponding to a symbol is carved; Program storage for converting and outputting sound source data corresponding to key input from the key input unit into a voice signal, displaying and outputting a result of executing the command of the key input, and outputting a voice part; A display unit which displays a result of executing the key input and the command of the key input; A sound source storage unit for storing sound source data corresponding to the key input and operation state sound source data corresponding to a result of executing the command of the key input; A microprocessor which outputs the sound source data according to the key input as a voice, or displays and outputs a result of executing the command of the key input as a voice; And a mobile communication unit for requesting a telephone call or wireless internet access according to the key input or executing a command of the key input to transmit and receive data by telephone call or wireless internet. Provides a mobile terminal.

According to another object of the present invention, there is provided a plurality of key buttons marked with numbers, letters and symbols, each key button is visually impaired of the mobile terminal is embossed with the braille corresponding to the numbers, letters and symbols 1. A method of using the method comprising: a first step of determining whether a key input of the key button is present; A second step of converting sound source data corresponding to the key input into a voice signal and outputting the voice signal; A third step of executing the command of the key input; And a fourth step of reading the operation state sound source data corresponding to the result of executing the command of the key input, converting the sound source data into a voice signal, and outputting the voice signal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings.

In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

2 is a block diagram schematically showing the internal configuration of a mobile terminal for the visually impaired according to an embodiment of the present invention.

The mobile terminal 200 according to the present invention includes a program memory 202, a key input unit 204, an LCD display unit 206, a data storage unit 208, a mode state storage unit 210, a sound source storage unit 212, Subscriber information storage 214, microprocessor 216, DSP (Digital Signal Processor) 218, baseband converter 220, speaker 222, microphone 224, antenna 226, RF signal processor 228 and the like.

Mobile terminal 200 according to an embodiment of the present invention is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, GSM (Global System for Mobile) phone, W-CDMA (Wideband CDMA) phone, CDMA -2000 phones, Mobile Broadband System (MBS) phones and the like. Here, MBS phone refers to a mobile phone to be used in the fourth generation system currently being discussed.

The program memory 202 outputs sound source data corresponding to the key input to the speaker 222 through the baseband converter 220 according to the key input from the key input unit 204, and executes key input. Is stored on the LCD display unit 206 and output to the speaker 222 as voice.

The key input unit 204 is provided with a numeric button for inputting a telephone number, a character button displaying a character for inputting text data, a selection button for selecting a menu, and the like. In addition, each button of the key input unit 204 is carved with a braille corresponding to a number of numbers, letters and symbols for the visually impaired.

 The LCD display unit 206 displays the overall operating state of the mobile terminal 200, including the degree of use of power, the reception strength of radio waves, the date and time, and also displays data received from the wireless Internet server 150 on the screen. do.

The data storage unit 208 functions as a data buffer when the mobile terminal 200 operates, and stores data input from the key input unit 204 or data received from the outside to the mobile terminal 200.

The mode state storage unit 210 stores the operation mode of the current terminal selected by the key input unit 204 as a state flag.

The sound source storage unit 212 stores a sound source corresponding to a letter or a number indicated on each button as data, and stores each operation state sound source for outputting the operation state of the terminal as voice according to a key input. It is.

Subscriber Identity Module (SIM) 214 stores subscriber terminal registration information. Here, the subscriber station registration information is a unique number assigned to each subscriber station in the mobile communication network, and the subscriber information storage unit 214 is inserted in the form of a card. Since this is a general content used in a mobile communication network, a description thereof will be omitted.

The microprocessor 216 controls the operation of the mobile terminal 200 with reference to the state flag stored in the mode state storage unit 210. In particular, when the visually impaired person performs key input while contacting the braille imprinted on the key input unit 204, the microprocessor 216 reads sound source data according to the key input from the sound source storage unit 212, and then converts the baseband conversion unit. The controller 222 outputs the voice to the speaker 222 via the voice 220, performs an operation according to the key input, and reads the sound source data according to the operation state of the terminal and outputs the sound to the speaker 222.

In addition, when the wireless Internet connection request command is input by the key input unit 204, the microprocessor 216 transfers the wireless Internet connection request data to the baseband conversion unit 220 (TX DATA).

The DSP 218 performs an audio data processing function of encoding or decoding audio data SPEECH exchanged with the baseband converter 220 and an equalization function to remove noise of a multipath. Digital signal processing processor to perform the. In addition, the DSP 218 receives the received message data RX DATA from the baseband converter 220.

The baseband converter 220 converts signals transmitted and received with the speaker 222, the microphone 224, and the RF signal processor 230 into baseband signals, and functions such as digital-to-analog conversion and analog-digital conversion processing. Do this. Accordingly, the baseband converter 220 converts the audio data received from the DSP 218 into an audio signal and outputs the audio signal to the speaker 222, or converts the audio signal input from the microphone 224 into audio data and converts the audio data into a DSP. 218).

In addition, the baseband converter 220 converts the transmission message data TX DATA input from the microprocessor 216 into a transmission message signal TXIQ and outputs it to the RF signal processor 228 or the RF signal processor 228. The received message signal RXIQ, which is inputted from the RXQ, is converted into the received message data RX DATA and output to the DSP 218. In addition, the baseband converter 220 automatically controls the gain of the power POWER of the RF signal processor 228 (AGC).

 The speaker 222 outputs an audio signal output from the baseband converter 220 as an audible sound, and the microphone 224 converts a user's voice input into an audio signal.

The RF signal processing unit 228 converts a transmission message signal into a radio frequency (RF) signal and outputs it to the antenna 226, or converts an RF signal applied from the antenna 226 into a reception message signal RXIQ and converts it into baseband. Output to the unit 220. The antenna 226 transmits an RF signal to the air or transmits an RF signal received from the air to the RF signal processor 228.

In addition, in order for the mobile terminal 200 to access the wireless Internet server 150 and download various data through the wireless Internet network, a browser capable of transmitting and receiving data with the wireless Internet server 150 using a predetermined protocol. ) Must be installed. Such a browser may be a wireless application protocol (WAP) browser, a mobile explorer (ME) browser, an I-mode, or the like, but is not limited thereto.

3 is a flowchart illustrating a method of using a mobile terminal for the visually impaired according to an embodiment of the present invention.

First, the microprocessor 216 of the mobile terminal 200 determines the wireless base station 120 to which it belongs based on the level of each demodulation signal received from the wireless base station 120 on the broadcast channel, and then according to the communication protocol. The registration procedure is performed by transmitting its subscriber information to the competent wireless base station 120.

When the terminal information is received from the mobile terminal 200, the wireless base station 120 transmits the terminal information to the home location register (HLR) via the mobile switching center 130, thereby legally registering the mobile terminal 200. Check if it is

Here, when the wireless base station 120 receives a signal indicating that the mobile terminal 210 is normally registered, and receives an encryption code that can be used by the terminal, the wireless base station 120 registers the mobile terminal 200 in a communicable state. Done.

Thereafter, the mobile terminal 200 is in a communication standby state capable of executing a data request at any time with respect to the wireless base station 120, and the wireless base station 120 is in a state capable of processing data requests from the mobile terminal 200. Wait (S302).

The visually impaired person carrying the mobile terminal 200 moves his or her hand to touch the embossed braille keys of the plurality of keypads provided in the key input unit 204 in order to make a phone call or perform a wireless Internet connection. Input is executed (S304). That is, a call is requested by inputting a phone number of the other party, or a wireless internet access request is made by selecting a wireless internet access menu from a plurality of menus.

If there is a key input from the key input unit 204, the microprocessor 216 reads the sound source data corresponding to the key input from the sound source storage unit 212 (S306), and reads the read sound source data into the DSP 218 and the baseband. The conversion unit 220 converts the voice signal into an audio signal and outputs the audible sound through the speaker 222 (S308).

Then, the microprocessor 216 performs a command corresponding to a key input, for example, a telephone call request or a command for accessing the wireless Internet, and outputs the result of the processing to the LCD display unit 206 (S310).

If there is a processing result to be displayed and output in this way, the microprocessor 216 reads the operating state sound source data corresponding to the display and output result from the sound source storage unit 212 (S312), and then the operating state sound source data, for example, " I am calling you to 010-3955-7438, which you requested. ”Read the operation state sound source data and convert it into a voice signal via the DSP 218 and the baseband converter 220, and then hear the sound through the speaker 222. Outputs to (S312).

Therefore, the visually impaired person can check the key input operation by voice while using the mobile terminal 200, and confirm the operation state or the processing result of the terminal accordingly, thereby making the use of the mobile terminal 200 very easy. Can be.

On the other hand, each keypad of the key input unit 204 is carved a braille corresponding to the consonants and vowels that the visually impaired to use when writing a text for transmitting an SMS (Short Message Service) message.

Therefore, the visually impaired person inputs a braille key button corresponding to a consonant and a vowel, and the microprocessor 216 switches to a text input mode when there is a key input for transmitting an SMS message through the key input unit 204, and the consonant and Character data about key input for vowels are formed and transmitted as wireless signals. After that, SMS message transmission follows the standard of the general mobile communication network.

As described above, according to the present invention, the braille for the visually impaired is imprinted on the keypad of the mobile terminal, and when an arbitrary key is pressed, the key input is voiced and the execution result according to the key input is voiced. The mobile terminal for the visually impaired and the method of using the mobile terminal for the visually impaired can be realized by converting the text into braille and converting the text into braille.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, by using the voice input of the key input of the mobile terminal, the frequency of use of the visually impaired with respect to the use of the mobile terminal can be increased, and the subscription of the mobile communication service can be increased.

In addition, the processing result according to the key input of the mobile terminal is also spoken, thereby increasing the utilization of additional services and wireless Internet for the visually impaired.

1 is a configuration diagram schematically showing the configuration of a mobile communication system capable of wireless Internet, including a conventional wireless call,

2 is a configuration diagram schematically showing the internal configuration of a mobile terminal for the visually impaired according to an embodiment of the present invention;

3 is a flowchart illustrating a method of using a mobile terminal for the visually impaired according to an embodiment of the present invention.

※ Explanation of codes for main parts of drawing

100: mobile communication system 110: mobile terminal

120: wireless base station 130; A mobile switching center

140: Internet 150: Wireless Internet Server

160: Wireless Internet Database

200: mobile terminal of the present invention 202: program memory

204: key input unit 206: LCD display unit

208: data storage unit 210: mode state storage unit

212: Web album storage unit 214: Subscriber information storage unit

216: microprocessor 218: DSP

220: baseband converter 222: speaker

224: microphone 226: antenna

228 RF signal processing unit

Claims (10)

In the mobile terminal configured to be convenient for the visually impaired, A key input unit including a plurality of key buttons marked with numbers, letters, and symbols, each key button having an embossed braille corresponding to the numbers, letters, and symbols; Program storage for converting and outputting sound source data corresponding to key input from the key input unit into a voice signal, displaying and outputting a result of executing the command of the key input, and outputting a voice part; A display unit which displays a result of executing the key input and the command of the key input; A sound source storage unit for storing sound source data corresponding to the key input and operation state sound source data corresponding to a result of executing the command of the key input; A microprocessor which outputs the sound source data according to the key input as a voice, or displays and outputs a result of executing the command of the key input as a voice; And A mobile communication unit for requesting a telephone call or wireless Internet access according to the key input or executing a command of the key input to transmit and receive data by telephone call or wireless internet. terminal. The method of claim 1, The mobile communication unit may include a mode state storage unit which stores an operation mode of a current terminal selected by the key input unit as a state flag; A subscriber information storage unit (SIM) storing registration information on a unique number (MIN) of the mobile terminal; A digital signal processor (DSP) that performs an audio data processing function for encoding or decoding audio data and performs an equalization function for removing noise of a multipath; A baseband conversion unit converting a signal transmitted and received with a mobile communication network into a baseband signal and performing digital-to-analog conversion and analog-to-digital conversion processing functions; A speaker for outputting an audio signal output from the baseband converter as an audible sound; A microphone for converting a user's voice input into the audio signal; An RF signal processing unit converting a transmission message signal into a radio frequency (RF) signal and outputting the RF signal or converting the RF signal into a reception message signal (RXIQ) and applying the same to the baseband converter; And And an antenna for transmitting the RF signal or transmitting the received RF signal to the RF signal processor. The method according to claim 1 or 2, The mobile terminal is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, GSM (Global System for Mobile) phone, W-CDMA (Wideband CDMA) phone, CDMA-2000 phone, MBS (Mobile Broadband System) A mobile terminal for the visually impaired, comprising a phone. The method of claim 1, Each keypad of the key input unit is a mobile terminal for the visually impaired, characterized in that the braille corresponding to the consonants and vowels that the visually impaired to use when creating a text for transmitting SMS (Short Message Service) message . The method of claim 1, If there is a key input for transmitting an SMS (Short Message Service) message through the key input unit, the microprocessor switches to a text input mode, forms text data corresponding to key input for consonants and vowels, and transmits it as a wireless signal. Mobile terminal for the visually impaired, characterized in that. In the use method for the visually impaired of the mobile terminal having a plurality of key buttons marked with numbers, letters and symbols, each key button is embossed braille corresponding to the numbers, letters and symbols, A first step of determining whether there is a key input of the key button; A second step of converting sound source data corresponding to the key input into a voice signal and outputting the voice signal; A third step of executing the command of the key input; And And a fourth step of reading the operation state sound source data corresponding to the result of executing the key input command, converting the sound source data into a voice signal, and outputting the voice signal. The method of claim 6, And the key input is a request for a telephone call or a request for a wireless internet access. The method of claim 6, The key input is for the visually impaired, characterized in that the input of the key button is imprinted braille corresponding to the consonants and vowels that the visually impaired to use when creating a text for sending SMS (Short Message Service) message How to use your mobile terminal. The method of claim 8, If there is a key input for transmitting the SMS message, the mobile terminal for the visually impaired, characterized in that to switch to the text input mode to form text data corresponding to the key input for the consonants and vowels and to transmit it as a wireless signal. . The method of claim 6, The third step is a method of using a mobile terminal for the visually impaired, wherein the telephone call is wirelessly performed or data is transmitted and received through a wireless internet connection.