JP2012064066A - Portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal with a touch panel which allows visually impaired persons to input braille characters.SOLUTION: A portable terminal 10 actuated by operation from a touch panel 14 whose surface is divided into multiple areas of a predetermined size includes an input detection part 30 capable of recognizing the presence/absence of touch for each area, a braille character storage part 32 for storing locations of dots composing one braille character for each braille character, a braille character selection part 34 for selecting the braille character input from the touch panel, based on the presence/absence of touch in each area detected by the input detection part 30 and the dot locations stored in the braille character storage part 32, and an input result storage part 36 for storing braille characters selected by the braille character selection part 34.

Description

  The present invention relates to a mobile terminal capable of inputting braille.

When creating a document or the like in Braille, a device capable of inputting Braille is required. A Braille typewriter is conventionally known as a device that can input Braille characters (see, for example, Patent Document 1).
However, since the braille typewriter directly stamps braille on paper, labels, etc., braille cannot be processed as data.

A Braille keyboard has also been developed so that data can be directly input in Braille to an information device such as a personal computer (see, for example, Patent Document 2).
If a Braille keyboard is used, Braille data can be input to the information device.

Furthermore, a device capable of inputting Braille characters on a touch panel has been developed (see, for example, Patent Document 3).
According to this touch panel type input device, a film-like sheet formed by protruding a plurality of dots constituting Braille is arranged on the touch panel surface, and even a visually handicapped person can input on the touch panel Has been.

JP-A-11-268349 JP 2006-318211 A JP-A-9-120254

According to the Braille input device described above, Braille can be input even by a visually impaired person, but devices normally used by healthy persons cannot be used as well.
For example, mobile terminals (smartphones) that have the functions of both mobile phones and personal digital assistants (PDAs) are sold by mobile phone companies, making it easy to obtain various information in addition to the functions of mobile phones. . However, in such portable terminals, there are many models that adopt the touch panel method, which is difficult for the visually impaired to use and there is a problem that the visually impaired cannot enjoy the convenience of the portable terminal. .

  Moreover, even if it is going to arrange | position the film in which the Braille character was carved on the touch panel surface of a portable terminal like said patent document 3, since the touch panel of a portable terminal is a thing with a small area in the first place, it operates by the film by which the Braille character was engraved. It is difficult.

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a portable terminal that enables a visually impaired person to input Braille, particularly in a portable terminal that employs a touch panel.

According to the portable terminal according to the present invention, in a portable terminal that includes a touch panel and operates by an operation from the touch panel, the surface of the touch panel is divided into a plurality of areas of a predetermined size, and the presence or absence of a touch can be recognized for each area. An input detection unit, a braille storage unit that stores the position of a dot that constitutes one Braille character for each Braille, the presence or absence of touch in each area detected by the input detection unit, and the Braille storage unit A braille selection unit that selects braille input from the touch panel based on the positions of the dots, and an input result storage unit that stores the braille selected by the braille selection unit.
By adopting this configuration, even when a visually impaired user uses a mobile terminal, the user can select the touch panel by associating a predetermined area of the touch panel with the position of braille dots in advance. Braille input is possible by touching.

Further, the present invention may further include a voice storage unit that stores pronunciations corresponding to each braille, and a voice output unit that extracts and outputs the pronunciations corresponding to the braille selected by the braille selection unit from the voice storage unit. Good.
According to this configuration, as the Braille is input, the input Braille pronunciation is output as a voice. For this reason, even if it is a case where input operation with a touch panel cannot be convinced, it can be confirmed whether the input was correct by hearing audio | voice output.

In addition, the input detection unit can detect a flick of the touch panel, and a flick motion storage unit in which a flick in a predetermined direction is stored in association with a predetermined motion at the time of Braille input, and input detection Flick execution means for executing an action associated with a flick in a predetermined direction detected by the unit may be provided.
According to this configuration, flicks in various directions such as a vertical direction or a horizontal direction with respect to the mobile terminal can be associated with various operations in Braille input.

Further, the present invention is characterized by comprising an acceleration sensor and a shuffle execution means for executing an operation associated with the shuffle when the acceleration sensor detects a predetermined acceleration as being shuffled by the user. Also good.
According to this configuration, when the mobile terminal is shuffled, an operation called shuffle can be associated with a predetermined operation in Braille input.

Furthermore, the touch position is stored every time the area is touched, the touch center position is calculated based on the distribution of the touch position stored a plurality of times in the past, and the touch center position is calculated based on the calculated touch center position. An area changing unit that controls to change the boundary of each area may be provided.
According to this configuration, when there is a wrinkle at the user's finger placement position, the area of the touch panel can be changed according to the wrinkle. For this reason, it is possible to prevent an input error from occurring when the touch position is confused with the adjacent area due to a difference in the position of the finger.

Further, each area has an input sound storage unit that stores different input sounds in association with each other, and when the input detection unit detects the presence or absence of touch for each area, the input associated with the area An input sound output unit that reads out sound from the input sound storage unit and outputs the sound may be provided.
According to this configuration, even if the user has visual impairment and is unsure whether or not he / she is touching the correct area, he / she can know that he / she is touching the correct area by listening to the sound. You can continue.

Further, when the braille selection unit determines that the braille being input is a braille composed of more dots than six dots, the input promotion that prompts further input after detecting the input of six dots An input promoting sound storage unit that stores input promoting sounds may be provided so that sound can be output.
According to this configuration, the user can accurately input even Braille other than Braille composed of six dots.

Note that a cover that is attached to the mobile terminal may be characterized in that the touch panel portion has an opening, and the direction of the mobile terminal and the position of the touch panel are formed so as to be distinguishable by unevenness.
According to this configuration, the orientation of the mobile terminal and the position of the touch panel can be accurately grasped for a user with visual impairment.

  According to the mobile terminal of the present invention, even a user with visual impairment can easily use the mobile terminal.

It is explanatory drawing which shows the external appearance structure of the portable terminal of this invention. It is explanatory drawing which shows the place which divides a touchscreen part into three area | regions and inputs the dot of the braille left column. It is explanatory drawing which shows the place which divides a touch-panel part into three area | regions and inputs the dot of the braille right column. It is a block diagram which shows the internal structure of a portable terminal. It is explanatory drawing explaining the function to change an area | region. It is explanatory drawing which shows the place which divided | segmented the touchscreen part into 6 area | regions. In the case of FIG. 6, it is explanatory drawing which shows the place which reversed the direction of the touch panel.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings.
A configuration of the mobile terminal according to the present embodiment will be described. Here, the operation switch of the user of the portable terminal is intended for a switch whose display unit is a touch panel.
As shown in FIG. 1, it is preferable to attach a cover 12 to the outer periphery of the mobile terminal 10. The cover 12 is made of an elastic member such as rubber and can be easily detached. The cover 12 is formed with an opening 12a so that the display unit 14 (touch panel unit 14) is not covered, and projections 15a and 15b are formed at predetermined positions (two places) around the opening 12a.

The two protrusions 15a and 15b are located at the upper and lower ends of the operation area 14a in the center portion of the touch panel unit 14, and the operation area 14a is operable within the range of the protrusions 15a and 15b. Can be identified.
Note that the upper end portion of the touch panel portion 14 is located above the upper protrusion 15a of the two protrusions. Therefore, an area different from the operation area 14a can be configured between the upper projection 15a and the upper end of the touch panel unit 14.
In the present embodiment, an information area 14b is provided between the upper protrusion 15a and the upper end portion of the touch panel unit 14, and some information or the like is displayed between them.

On the other hand, the lower end portion of the touch panel portion 14 is positioned below the lower protrusion 15b among the two protrusions. Therefore, an area different from the operation area 14a can be configured between the lower protrusion 15b and the lower end of the touch panel unit 14.
In the present embodiment, a portion between the lower protrusion 15b and the lower end portion of the touch panel portion 14 is provided as a shortcut area 14c. By operating between these, it is possible to start other applications.

In addition, the portable terminal 10 in this embodiment is provided with a home button on the lower surface. The cover 12 is formed with a home button portion 16 that covers the surface of the home button and is formed with some protrusions so that it can be recognized by touch. For example, an X-shaped protrusion may be formed on the surface of the home button portion 16.
In addition, by configuring the cover 12 with a material that does not slip easily, the cover 12 can be securely held without slipping from the hand as compared with the case where the surface of the mobile terminal 10 is directly provided.

Next, a basic method for Braille input according to the present embodiment will be described with reference to FIGS.
In the present embodiment, the operation area 14a of the touch panel unit 14 is set by dividing it into three area areas 1, area 2, and area 3 in the horizontal direction. In each of the three areas, among the six dots that constitute Braille, three dots in the left column and three dots in the right column are associated with each area.

  The user touches the three rows and two columns of braille to be input in the order of the left column and the right column in the order of the left column and the right column, if there are dots in the three areas in the operation area 14a. Enter.

Of the six dots constituting the braille, a general reading method is to read in order from the left column to the bottom, and then read from the right column in the order from the top to the bottom. Therefore, as shown in FIG. 2, it is assumed that the dots in the left column are numbered 1, 2, 3 in order from the top. Dot 1 corresponds to area 1, dot 2 corresponds to area 2, and dot 3 corresponds to area 3.
When the input for the three dots in the left column is completed, the next three dots in the right column are input.
As shown in FIG. 3, assume that the three dots in the right column are numbered 4, 5, and 6 in order from the top. Dot 4 corresponds to area 1, dot 5 corresponds to area 2, and dot 6 corresponds to area 3.

When the finger touching each area in the present embodiment is input with the right hand, the right index finger may correspond to area 1, the right middle finger to area 2, and the right hand ring finger to area 3.
In addition, it is assumed that touching each region in each column is performed simultaneously. For example, when dot 1 is present in the left column, dot 2 is absent, and dot 3 is present, the index finger of the right hand touches area 1 and the ring finger touches area 3 simultaneously.

The portable terminal 10 detects such an input for each column, and determines the input braille when the input for two columns is detected.
The determined braille sound may be output from a speaker (not shown) of the mobile terminal. For example, if the determined Braille is “A”, the sound “A” is output. This is because it is impossible for a visually handicapped person to confirm whether or not the sound has been correctly input unless a sound is output.

  Further, the mobile terminal 10 may output a first row completion sound that is output when the first column input is completed, and an input completion sound that is output when the second column input is completed and Braille input is completed. .

Some types of braille are not composed of only six dots. For example, muddy sound, semi-turbid sound, prompt sound, roaring sound, etc. are composed of 12 dots.
Therefore, in the portable terminal 10, when it is determined that the Braille input is not yet completed when the input in the second column is completed, the input in the second column is only completed and the input is still necessary. In order to notify the user of the fact, it is preferable to output a sound that prompts input.

Next, the internal configuration of the mobile terminal of the present embodiment will be described based on FIG. Note that, with regard to the following internal configuration, the arithmetic processing device and the memory provided in the mobile terminal realize their functions in accordance with a preset program.
The portable terminal 10 stores an input detection unit 30 that determines that the touch panel unit 14 has been touched for each region (in this embodiment, three regions of area 1 to area 3), and a dot arrangement of each braille. A Braille storage unit 32 and a Braille selection unit 34 for selecting which Braille character is input from the Braille storage unit 32 based on the input signal detected by the input detection unit 30.
The input detection unit 30 stores data indicating the range of each region, and can determine which place on the touch panel unit 14 is touched.

Furthermore, the mobile terminal 10 includes an input result storage unit 36 that stores the Braille selected by the Braille selection unit 34, and the Braille input by the user is stored one by one.
Further, the mobile terminal 10 is provided with a function of outputting the input braille as a voice. Specifically, Braille and pronunciation corresponding to the Braille are stored in the voice storage unit 38, and the Braille pronunciation selected by the Braille selection unit 34 is transmitted from the voice storage unit 38 to the voice output unit (specifically, Is output from the speaker 40 as sound. For this reason, even a user with visual impairment can check whether or not the input braille is correct.

In addition, the mobile terminal 10 may be provided with an input sound storage unit 49 that stores in advance input sounds assigned to each area. The input sound extracted from the input sound storage unit 49 is output from the sound output unit 40.
Also, by assigning different sounds to each area, a visually impaired user can determine whether or not he / she has touched exactly where he / she wanted when he / she touches the touch panel unit 14.
Moreover, it is good to set it as a chord as a different sound in each area | region. According to this, when all the areas are touched, it is possible to obtain an input sound having a very good sound.

In addition, if the sounds set in each region are different in the first and second rows of Braille, it will be more useful for input. For example, it is conceivable that the sound set in each area in the first row and the sound set in each area in the second row are made different by a semitone.
Furthermore, in the case of Braille composed of 12 dots as described later, the next 6 dots following the first 6 input dots are considered as the 3rd and 4th rows, and the above 1st row Similarly to the relationship between the first row and the second row, it is better to set so that different sounds are set in the regions of the third row and the fourth row.
Specifically, “do”, “mi”, and “so” sounds are respectively set in area 1, area 2, and area 3 corresponding to the first row, and areas 1 and 2 corresponding to the second row are set. , “Do #”, “Fa” and “So #” are set in Area 3 respectively, and “Le”, “Fa #”, For example, “La” sound is set, and “Le #”, “So”, and “La #” sound are respectively set in Area 1, Area 2, and Area 3 corresponding to the fourth row. It is done. According to such a setting, the input sound becomes higher by a semitone as the input progresses. Therefore, it is considered that the progress of the input is audible and can be input more smoothly for a visually impaired person.

Braille is basically a 6-point system composed of 6 dots arranged in 3 rows and 2 columns, but muddy, semi-voiced and roaring sounds are composed of 12 dots. At this time, a muddy note, a semi-voiced note, and a staggered note are added before the normal Braille, so that it can be determined that the sound is muddy. The input detection unit 30 can determine that the input braille is a muddy sound, a semi-turbid sound, or a stuttering sound by inputting a muddy note, a semi-turbid note, or a stray note. Therefore, in the case of these characters, one braille character is not completed unless 6 dots are input after 6 dots have been input.
Therefore, when the input detection unit 30 determines that the braille being input is a braille composed of more dots than six dots, the input detection unit 30 detects input corresponding to six dots and then further prompts input. A promotion sound is preferably output.

The input promotion sound is set as a sound different from the input sound, and is stored in the input sound storage unit 49 in advance.
When the input detection unit 30 detects that a Braille character that is not composed of six dots is input, the Braille selection unit 34 extracts the input promotion sound from the input sound storage unit 49 and the voice output unit 40 extracts it. Control to output.
In this way, the user can accurately input even braille composed of 12 dots such as muddy sound, semi-turbid sound, or roar.

The input detection unit 30 can detect a flick when the user flicks the touch panel. A flick is an operation of shifting the finger in a predetermined direction while keeping a finger on the touch panel unit 14, and is different from a mere touch.
In the present embodiment, it is assumed that the operation content is set in advance for two directions of flicks in the vertical direction or the horizontal direction. The operation corresponding to the flick is stored in the flick operation storage unit 42. A flick operation execution unit 44 is provided so as to execute an operation corresponding to the detected flick.

Note that the present invention is not limited to detecting only two directions of flick directions. For example, the input detection unit 30 can recognize flicks in multiple directions within a discriminable range, and the flicking action execution unit 44 can execute an intuitively appropriate action for each direction. The operation to be performed may be stored and set in the flick operation storage unit 42.
In addition, the input detection unit 30 can detect not only flicking but also dragging (an operation of shifting a finger placed on the touch panel unit 14 in a predetermined direction while pressing other buttons) or an operation of folding a flick or a drag in a plurality of directions. Corresponding actions can also be stored and set in the flick action storage unit 42 so that the flick action executing unit 44 can execute intuitively appropriate actions for these operations.

Examples of the flick operation include canceling input or a case where there is no dot in the corresponding column.
For example, if the left flick or the upper flick is stored in the flick action storage unit 42 as meaning to cancel the input, when the input detection unit 30 detects the left flick or the upper flick, the previously input one column The braille selection unit 34 operates so that the dot position of the minute is deleted and the input for one column becomes possible again.
Further, when the flick action storage unit 42 stores that the right flick or the lower flick means that there is no dot in the column, when the input detection unit 30 detects the right flick or the lower flick, the braille selection unit 34 waits for the input of the next column on the assumption that no dot exists in the column, or selects and outputs the corresponding braille from the braille storage unit 32.

Further, the mobile terminal 10 is provided with a shuffle detection sensor (specifically, an acceleration sensor) 46. The shuffle detection sensor 46 can detect that the mobile terminal 10 has been shuffled. Note that shuffling means that the entire mobile terminal 10 is swung.
In the mobile terminal 10, an operation corresponding to shuffle is set in advance. The operation corresponding to the shuffle is stored in the shuffle operation storage unit 48, and the shuffle operation execution unit 50 executes a preset operation. For example, an operation such as ending the braille input mode can be performed by shuffling.

Next, a function capable of automatically changing the boundary of a preset area will be described.
For example, the position of the hand holding the mobile terminal 10 by the user is usually different for each person, and accordingly, the place where the finger is placed in the operation area 14a of the touch panel unit 14 also differs for each person. .
Therefore, even if the operation area 14a is set in an area of a predetermined size in advance, there is a user who may slightly protrude the position of the finger, and there are other users who are not.

Therefore, the mobile terminal 10 includes an area changing unit 54 that can change the position of the boundary of each area based on the touch position.
The area changing unit 54 includes a touch position storage unit 55 that stores a touch position every time it is touched in each area, and a center position calculation unit 56 that determines a center position of the touch position based on a distribution of a plurality of touch positions. When the distance between the center position and the boundary of each region becomes smaller than a preset threshold value, control is performed so that the boundary of each region is changed so that this distance is at least equal to or greater than the threshold value. is doing.
The center based on the distribution of touch positions is determined based on a two-dimensional frequency distribution.

The operation of the area changing unit 54 will be specifically described with reference to FIG.
FIG. 5 shows a case in which the boundary of the region in the right region (area 3) in the touch panel unit 14 is considered with the left-right direction as the x-axis and the up-down direction as the y-axis.
The area change by the area changing unit 54 is executed for each area. First, the area changing unit 54 calculates the center position from the data of a plurality of touch positions stored in the touch position storage unit 55 in the corresponding area, using an average value or a median value. Here, the coordinates of the center position are (X1, Y1).
Further, the coordinates of the boundary between area 3 and area 2 are (a, y). Since the boundary is a straight line parallel to the y-axis, a in the x coordinate is a constant.

The region changing unit 54 detects how close the calculated center position (X1, Y1) is to the boundary (a, y) of each region stored in the input detection unit 30. In the present embodiment, X1-a is the distance between the center position and the boundary. Then, the region changing unit 54 compares a preset threshold value (T) with the calculated distance.
Here, as a result of the comparison by the region changing unit 54, if T <X1-a, there is no region boundary change because the center position of the touch is sufficiently away from the boundary.
On the other hand, as a result of the comparison by the area changing unit 54, if T ≧ X1-a, it can be determined that the center position of the touch is close to the boundary. Therefore, in such a case, the region changing unit 54 performs control so that the boundary stored in advance in the input detection unit is moved in a direction away from the center position. In addition, when moving a boundary, the movement distance should just move as much as the threshold value (T).

  For example, if the boundary of the area 3 is moved in the direction of the area 2 as described above, the area of the area 2 is reduced. However, since it is highly likely that the center position of the touch is biased to the left side in the same way as in area 3, there is no problem if the boundary of area 2 on area 1 side also moves to area 1 side. In addition, there is no boundary to be moved on the left side of area 1 and the area is simply narrowed. However, even if the center position of the touch is biased to the left side of area 1, the boundary with other areas is not changed. There is no problem.

Next, another embodiment at the time of Braille input will be described.
In the embodiment described above, the operation area 14a of the touch panel unit 14 is divided into three regions, and basically, one Braille character is constituted by two inputs.
However, the number of divisions of the area of the operation area is not limited to three and may be other numbers.

FIG. 6 shows an example in which the operation area 14a of the touch panel unit 14 has six areas.
In such a case, the index finger, middle finger, and ring finger of both hands are arranged on the touch panel unit 14, and the respective thumb and little finger are arranged on the back side or the side surface where the touch panel unit 14 is not formed.
By doing so, it is possible to input six dots constituting Braille at a time.
In addition, protrusions or dents that match the shape of the finger or hand so that the placement of fingers other than the index finger, middle finger, ring finger, and finger other than the finger of the hand used for Braille input can be placed at preset positions on the terminal May be formed on the main body or cover 12 of the portable terminal 10. By doing in this way, the reference position at the time of carrying the portable terminal 10 with respect to a user can be suggested, and the variation in a hit point position can be suppressed effectively.

Further, as shown in FIG. 7, the operation area 14a has six areas, and the positions of the six dots constituting one character of Braille and the arrangement of the areas of the operation area 14a are as in FIG. May be reversed. That is, in this configuration, the user may turn the touch panel unit 14 to the opposite side and input braille on the back side.
This is effective for a user who is accustomed to reading an object in which dots protrude in his / her direction (front side), such as when reading braille.

Further, the number of operation area regions is not limited to these numbers. For example, two regions may be used to input one Braille in three portions.
Further, the operation area may be divided into four areas, and four dots are input first and then two dots are input.

Moreover, you may enable it to change the function of the braille selection part 34 by a user's setting.
For example, as shown in FIGS. 2, 3, 6, and 7, six dots constituting the braille are defined as dots 1 to 3 from the first row and dots 4 to 6 from the second row. In this case, a portion corresponding to a Japanese vowel is represented by dot 1, dot 2, and dot 4, and a portion corresponding to a Japanese consonant is represented by dot 3, dot 5, and dot 6.
On the other hand, when you learn braille after having grown relatively like a blind person, the vowels of the Japanese syllabary table are dots 1 to 3 in the first row, and the consonants are dots 4 to 6. Thus, there is a circumstance that it is easy to remember when changing the dot 3 and the dot 4 to the modified Braille.
In order to respond to such a request, the function of the braille selection unit 34 is changed according to the setting of the user, and the braille selection unit 34 reads the braille from the braille storage unit 32 based on the presence / absence of touch of each area recognized by the input detection unit 30. When selecting, it is more preferable that the braille can be selected after the dots 3 and 4 are exchanged.

  While the present invention has been described in detail with reference to a preferred embodiment, the present invention is not limited to this embodiment, and it goes without saying that many modifications can be made without departing from the spirit of the invention. .

DESCRIPTION OF SYMBOLS 10 Mobile terminal 12 Cover 12a Opening part 14 Touch panel part 14a Operation area 14b Information area 14c Shortcut area 15a, 15b Protrusion 16 Home button part 30 Input detection part 32 Braille storage part 34 Braille selection part 36 Input result storage part 38 Voice storage part 40 Audio output unit 42 Flick motion storage unit 44 Flick motion execution unit 46 Shuffle detection sensor (acceleration sensor)
48 Shuffle operation storage unit 49 Input sound storage unit 50 Shuffle operation execution unit 54 Area change unit 55 Touch position storage unit 56 Center position calculation unit

Claims (8)

In a portable terminal equipped with a touch panel and operated by an operation from the touch panel,
An input detection unit that divides the surface of the touch panel into a plurality of regions of a predetermined size and can recognize the presence or absence of touch for each region;
A braille storage unit that stores the positions of the dots constituting one Braille character for each Braille;
A braille selection unit that selects braille input from the touch panel based on the presence or absence of touch in each area detected by the input detection unit and the position of the dot stored in the braille storage unit;
A portable terminal comprising: an input result storage unit that stores the Braille selected by the Braille selection unit. A voice storage unit that stores pronunciation corresponding to each braille;
The mobile terminal according to claim 1, further comprising: a voice output unit that extracts and outputs a pronunciation corresponding to the Braille selected by the Braille selection unit from the voice storage unit. The input detection unit can detect a flick of the touch panel,
A flick action storage unit in which a flick in a predetermined direction is stored in association with a predetermined action at the time of Braille input;
The mobile terminal according to claim 1, further comprising: a flick execution unit that executes an operation associated with a flick in a predetermined direction detected by the input detection unit. An acceleration sensor;
The apparatus according to claim 1, further comprising shuffle execution means for executing an operation associated with the shuffle when the acceleration sensor detects a predetermined acceleration. Item 4. The mobile terminal according to any one of items 3 to 3. The touch position is memorized every time it is touched in each area,
For each area, calculate the touch center position based on the distribution of touch positions stored multiple times in the past,
5. The mobile terminal according to claim 1, further comprising region changing means for controlling to change a boundary of each region based on the calculated touch center position. In each area, an input sound storage unit storing different input sounds in association with each other;
And an input sound output unit configured to read out and output an input sound associated with the region from the input sound storage unit when the input detection unit detects the presence or absence of a touch for each region. The portable terminal of any one of Claims 1-5.   When the braille selection unit determines that the braille being input is a braille composed of more than six dots, an input prompting sound that further prompts input is detected after detecting input for six dots. The portable terminal according to any one of claims 1 to 6, further comprising an input promotion sound storage unit that stores an input promotion sound so as to be output.   A cover to be attached to a portable terminal, wherein the touch panel portion is opened, and the direction of the portable terminal and the position of the touch panel are formed so as to be distinguishable by unevenness. Item 8. The mobile terminal according to any one of Items 7 above.

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