KR20080023901A - Method and device for presenting braille in a wireless mobile terminal - Google Patents

Abstract

A method and a device for outputting Braille in a mobile terminal are provided to enable the visually disabled to check text information in the mobile terminal by outputting the Braille with a plurality of thermal stimulus LEDs(Light Emitting Diode) generating heat. A Braille output part(52) includes a plurality of thermal stimulus LEDs(52a-52f) in at least one of a display part(51) and a key input part of a mobile terminal. A controller translates desired text into Braille and enables the thermal stimulus LEDs to generate heat in a form corresponding to each translated Braille.

Description

METHOD AND DEVICE FOR PRESENTING BRAILLE IN A WIRELESS MOBILE TERMINAL}

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a process of outputting text in Braille according to an embodiment of the present invention.

Figure 3 is a schematic illustration of the braille output unit located on the bottom of the display unit according to an embodiment of the present invention.

4 is a first exemplary diagram for outputting text in Braille according to an embodiment of the present invention.

5 is a second exemplary diagram for outputting text in Braille according to an embodiment of the present invention.

6 is a third exemplary diagram for outputting text in Braille according to an embodiment of the present invention.

7 is a control table listing Braille corresponding to Korean and English.

The present invention relates to a mobile terminal, and more particularly, to a text output device in a mobile terminal.

The portable terminal refers to a communication device that can exchange calls and data while moving. In general, the vast majority of information provided by a mobile terminal is visual information checked by the user's eyes. For example, the user manipulates the mobile terminal while viewing the screen of the display unit, and text (text information) such as an SMS message transmitted and received is information to be checked with the eyes of the user. For users who rely on visual information, a conventional portable terminal is equipped with a light emitting diode (LED) at the bottom of a key pad. Through this, the conventional mobile terminal can notify that the call (Call) has been received through the light emitting (Emitting Light) of the LED mounted on the key input unit, or can inform the telephone number of the communication partner. However, such a conventional portable terminal has limited information that can be transmitted only by emitting light of the LED, and the visually impaired people have a problem in that they cannot use information that depends only on the visual. In particular, this phenomenon that the visually impaired people can not use the visual information is not limited to the mobile terminal is not enough consideration for the visually impaired. Considering that the use of communication through mobile terminals is a big part of the life of modern people, it is necessary to make up for these problems to make it easier to use mobile terminals.

Accordingly, an aspect of the present invention is to provide an apparatus capable of outputting text of a mobile terminal in Braille that is visually impaired.

To this end, the present invention is a braille output device in a portable terminal, a braille output unit including a plurality of heat stimulating LED (Light Emitting Diode), and the text requested to be output in braille is translated into the corresponding braille, the plurality It characterized in that it comprises a control unit for controlling the braille output unit to generate heat in the form of the heat stimulation LED corresponding to each of the translated braille sequentially.

In addition, the present invention is a braille output device in a mobile terminal, a plurality of braille output unit including a plurality of heat-emitting LED (Light Emitting Diode), and the text requested to be output in braille is translated into the corresponding braille, And a controller configured to control the plurality of braille output units to simultaneously generate heat in a form corresponding to the translated braille.

In addition, in the braille output method of the present invention, when a text is requested to be output in Braille, a process of translating the text into Braille corresponding to the text, and a braille output unit including a plurality of heat stimulating LEDs (Light Emitting Diode) And sequentially generating heat in a form corresponding to the translated braille.

In addition, in the braille output method of the present invention, when a text is requested to be output in Braille, a process of translating the text into Braille corresponding to the text, and a plurality of Braille including a plurality of heat stimulating LEDs (Light Emitting Diode) The output unit is characterized in that it comprises a process of generating heat in the form corresponding to the translated braille at the same time.

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

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 1, the wireless transceiver 23 includes an RF unit and a modem. The RF unit includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The modem MODEM includes a transmitter for encoding and modulating a signal to be transmitted, a receiver for demodulating and decoding a signal received at an RF unit, and the like.

The audio processor 25 may configure a codec, and the codec includes a data codec and an audio codec. The data codec processes packet data and the like, and the audio codec processes audio signals such as voice and multimedia files. The audio processor 25 converts and plays an analog audio signal received from a modem through the audio codec, or converts an analog audio signal generated from a microphone into a digital audio signal through the audio codec and transmits the digital audio signal to a modem. Perform the function. The codec may be provided separately or included in the controller 10.

The key input unit 27 is provided with keys necessary for input of numeric and character information and function keys necessary for setting various functions. Key input unit 27 according to an embodiment of the present invention may include a braille output unit 52, the braille output unit 52 will be described in detail with reference to FIG.

The memory 30 may be composed of a program memory and a data memory. The program memory stores a program for controlling a general operation of the portable terminal. The memory 30 according to an embodiment of the present invention stores the braille check table shown in FIG. 7.

The display unit 50 may be formed of a liquid crystal display (LCD) or organic light emitting diodes (OLED), and outputs various display information generated by the mobile terminal. The display unit 50 according to an exemplary embodiment of the present invention may operate as an input unit for controlling the mobile terminal together with the key input unit 27 by providing a touch screen. The display unit 50 according to the embodiment of the present invention may include a braille output unit 52. The display unit 50 according to the embodiment of the present invention may include the braille output unit 52 similarly to the key input unit 27, which will be described in detail with reference to FIG. 3.

The controller 10 switches and controls the overall operation or driving mode of the portable terminal. When the control unit 10 according to the embodiment of the present invention is requested to output text in Braille, the text requested to be output is translated using the braille check table stored in the memory 30 to Braille corresponding thereto, and Control to generate heat in the form corresponding to the translated braille.

2 is a flowchart illustrating a process of outputting text in Braille according to an embodiment of the present invention. Text defined in the present invention means information that can be read by eye.

If the user is requested to output the text in Braille (S201), in response, the control unit 10 controls to translate the text into the corresponding Braille (S202).

For example, when a user requests to output Braille when the content of the text received in the form of sms is 'love', the controller 10 controls to translate the braille corresponding to 'love'. That is, the controller 10 controls the translation to Braille corresponding to the English letters 'l', 'o', 'v' and 'e' with reference to the braille check table of FIG. 7 stored in the memory 30.

When the translation into braille is completed in step S202, the controller 10 controls to output braille translated from the text through the braille output unit 52 (S203).

The controller 10 controls the braille output unit 52 to apply thermal stimulation to the user in a form corresponding to the braille output of the heat stimulation LEDs 52 of the braille output unit 52. For example, the controller 10 confirms through visual sense by controlling the on / off of the heat stimulation LED of the braille output unit 52 in the form of braille translated to correspond to the text content of 'love'. The visually impaired can also be grasped, which will be described with reference to FIGS. 4 to 6.

3 is a schematic illustration of the braille output unit 52 positioned below the display unit according to an exemplary embodiment of the present invention. 3A is an exemplary view showing that the braille output unit 52 is located at the rear of the liquid crystal 51 of the display unit 50, and FIG. 51 is an exemplary view when looking at the front.

Referring to (a) and (b) of FIG. 3, the braille output unit 52 is located on the lower surface of the liquid crystal 51 so that the control unit according to the user's braille output request is not displayed to the user. According to the control of 10), the thermal stimulus generates thermal stimulus in the form of braille translated from the text through the LED. Thermally stimulating LEDs mean LEDs that generate heat at a higher temperature than conventional LEDs that simply emit light. In general, the braille is formed of a protruding portion and a non-protruding portion, the braille output unit 50 of the present invention is a heat stimulation by the on (On) of the heat stimulation LED of the general braille projection, the non-protruding portion of the thermal stimulation LED Corresponds to Off. Through this, the visually impaired person can understand the text through heat stimulation generated in the form of braille. Considering that the present invention outputs character information such as text in Braille, the braille output unit 52 according to an embodiment of the present invention has six thermal stimulation LEDs according to the braille system of the braille check table shown in FIG. 7. 52a to 52f) is the minimum configuration. In this case, the number of thermally stimulating LEDs included in the braille output unit 52 may vary depending on the braille system.

FIG. 4 is a first exemplary view of outputting text in Braille according to an embodiment of the present invention. In particular, when the display unit 50 according to an embodiment of the present invention includes only one braille output unit 52. It is an exemplary view about.

Looking at the step S203 of FIG. 2 in which the translated braille is output through the braille output unit with reference to FIG. 4 as follows. As shown in (a) of FIG. 4, the control unit 10 controls only the thermal stimulation LEDs of 52a, 52c, and 52e among the thermal stimulation LEDs included in the braille output unit 52 to be in English spelling 'l'. The thermal stimulus is applied in the form of the corresponding braille so that the user can recognize it. After a predetermined time has elapsed, the controller 10 turns on / off the heat stimulating LED of the braille output unit 52 in a form corresponding to the English letter 'o' as shown in FIG. Through the same principle, the controller 10 controls the braille output unit 52 to correspond to the English letter 'v' as shown in (c) of FIG. 4, and to the English letter 'e' as shown in FIG. Correspondingly, the braille output unit 52 is controlled. That is, when the user touches the liquid crystal 51 of the display unit 50, the letters correspond to the letters 'l', 'o', 'v', and 'e' of the text 'love' at predetermined intervals. Braille is in turn output through the form of a thermal stimulus.

FIG. 5 is a second exemplary view of outputting text in Braille according to an exemplary embodiment of the present invention. In particular, the display unit 50 according to an exemplary embodiment of the present invention includes a plurality of braille output units in one liquid crystal 51. It is an illustration about when 52-55) is included.

Referring to step S203 of FIG. 2, in which the translated braille is output through the braille output units 52 to 55, with reference to FIG. 5, the controller 10 displays 'l' through the braille output unit 52 and the braille output unit ( 53) 'o' through the braille output unit 54, 'v' through the braille output unit 55 outputs braille corresponding to 'e' through the thermal stimulation LED, the translated braille is one liquid crystal (51) Control to output simultaneously on the screen. Therefore, the user can check the meaning of the text by moving the finger in the order of the braille output 52-> 53-> 54-> 55. At this time, if the number of translated braille is greater than the number of braille output units included in one liquid crystal 51, the controller 10 divides and outputs the translated braille by the number of braille output units. For example, when the text 'love hate' is translated into braille, the controller 10 simultaneously outputs the braille corresponding to 'love' through the plurality of braille output units 52 to 55, and a predetermined time is output. When the elapsed time is controlled, the braille corresponding to 'hate' is simultaneously output through the plurality of braille output units 52 to 55.

6 is a third exemplary view of outputting text in Braille according to an embodiment of the present invention. In particular, when the key input unit 27 according to the embodiment of the present invention includes the braille output unit 52, FIG. It is an illustration.

Key input unit 10 according to an embodiment of the present invention may have a separate space for outputting a variety of information of the portable terminal to the user in Braille, through the key input unit 27 having such a space of FIG. Looking at the step S203 is as follows. When the controller 10 includes only one braille output unit 52 as shown in FIG. 4, the controller 10 outputs braille corresponding to text at predetermined time intervals. That is, when the user touches a specific position of the key input unit 27 in which the braille output unit 52 is located, the controller 10 may perform the predetermined time intervals of FIGS. 4A to 4B. > (c)-> (d) in order to control the on / off of the heat stimulation LED of the braille output unit 52 to output the text 'love' to the user in Braille. Here, the braille output unit 52 may be included in each key of the key input unit 27.

7 is a checklist listing braille corresponding to Korean and English. Although the Braille check table shown in FIG. 7 only shows Braille corresponding to Korean and English, the control unit 10 according to an embodiment of the present invention can control the braille output unit 52 to reflect a different braille system for each country. have. In this case, it is assumed that the memory 30 stores a braille check table corresponding to the braille system of each country.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined not only by the claims but also by the equivalents of the claims.

In the present invention for outputting text in Braille as described in detail above, the effects obtained by the representative of the disclosed invention will be briefly described as follows.

The present invention has the effect of enabling the user with visual impairment to check text information of the mobile terminal.

In addition, the present invention has the effect of improving the braille education effect of the user by outputting the braille corresponding to the text to the user to learn the braille.

Claims (8)

In the braille output device in a mobile terminal, A braille output unit comprising a plurality of heat stimulating LEDs (Light Emitting Diode), A controller for translating the text requested to be output in braille into corresponding braille, and controlling the braille output unit so that the plurality of thermal stimulus LEDs sequentially generate heat in a form corresponding to each of the translated braille; Braille output device in the mobile terminal, characterized in that The method of claim 1, wherein the braille output unit, A braille output device in a portable terminal, characterized in that it is included in at least one of a display unit or a key input unit of the portable terminal. In the braille output device in a mobile terminal, A plurality of braille output unit including a plurality of heat stimulating LED (Light Emitting Diode), A control unit for translating the text requested to be output in braille into corresponding braille and controlling the plurality of braille output units to simultaneously generate heat in a form corresponding to the translated braille; Braille output device in a mobile terminal comprising a. The method of claim 3, wherein the braille output unit, A braille output device in a portable terminal, characterized in that it is included in at least one of a display unit or a key input unit of the portable terminal. In the braille output method in a mobile terminal, When the text is requested to be printed in Braille, the text is translated into Braille, Braille output method comprising a step of sequentially generating heat in the form corresponding to the translated braille braille output unit comprising a plurality of thermal stimulation LED (Light Emitting Diode). The method of claim 5, And the braille output unit is included in any one of a display unit and a key input unit of the portable terminal. In the braille output method in a mobile terminal, When the text is requested to be printed in Braille, the text is translated into Braille, And a plurality of braille output units including a plurality of heat stimulating LEDs (Light Emitting Diode) to simultaneously generate heat in a form corresponding to the translated braille. The method of claim 7, wherein And the braille output unit is included in any one of a display unit and a key input unit of the portable terminal.

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