KR101414169B1 - The keyboard using blind people and information recognition system using the same - Google Patents

Abstract

Disclosed are a keyboard for the visually handicapped and an information recognition system using the same, enabling the visually handicapped to swiftly and correctly input letters and numbers. The keyboard for the visually handicapped and the information recognition system using the same comprises: a keyboard including an input part having Korean and English input keys, number keys and function keys for inputting information, and a keypad for inputting the letters and the numbers in a touch manner; and a key recognition device for recognizing keys inputted via the keypad of the keyboard for the visually handicapped and displaying the letters and the numbers corresponding to the recognized keys on a screen, wherein a touchscreen and a recognition device capable of recognizing vertical positions and horizontal positions on the touchscreen are added in the keyboard for the visually handicapped, thereby enabling the visually handicapped to conveniently and correctly input information.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a keyboard for a visually impaired person,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard for the visually impaired and information recognition using the same, and more particularly, to a keyboard for the visually impaired that enables a blind person to quickly and accurately input letters and numbers and an information recognition system using the same.

Generally, blind people use 'screen reader' software to access information by entering information or listening to stored information. In particular, the blind can not see the window screen, and since the mouse can not be used, the user uses the function key (a shortcut key for Windows) to operate the computer.

In addition, blind people need much more effort than normal people to learn how to enter letters and numbers, and the input speed is very slow and the error rate is very high.

Therefore, in order to improve the inconvenience of the visually handicapped person, the input device has been continuously studied and developed, and an example thereof is disclosed in Korean Utility Model Registration No. 20-0450100 (published on Sep. 3, 2010) (Hereinafter abbreviated as "Reference Invention 2"), Published Utility Model Publication No. 20-2009-0012078 (2009.11) (Hereinafter abbreviated as "cited invention 3").

In the disclosed prior art 1, a liquid crystal display part is inserted into a keycap of a space function key button so that characters displayed on a computer monitor at the time of keyboard input are simultaneously displayed on a liquid crystal display part inserted into a keycap of a space function key button of the keyboard, So that the user can easily input data using the keyboard.

In addition, the disclosed Prior Art 2 provides a keyboard having a plurality of keys imprinted with braille relief, so that a blind person can practice keyboard typing.

In addition, according to the disclosed prior art 3, the printed portion of the keyboard is protruded on the same principle as the braille for the visually impaired without directly checking the keyboard of the keyboard, so that the user can recognize the position of the keyboard with only the tactile sense of the finger.

1. Registered utility model registration number 20-0450100 (designation of design: keyboard for computer with space function key button with display function) 2. Description of the Related Art: Keyboard Apparatus and Method for Learning for the Visually Impaired (Korean Patent Laid-Open Publication No. 2001-0061347 3. Public Utility Model Publication No. 20-2009-0012078 (2009.11.26. Disclosed) (name of design: character embossing of computer keyboard)

However, since most of the above-mentioned conventional techniques are in the form of braille, they are difficult to be used by persons with acquired visual impairment due to the disorder.

In other words, it is almost impossible to use braille keyboards because it is almost impossible for acquaintances with visual impairment to learn Braille.

In addition, the above conventional techniques have a disadvantage that it is almost impossible to input letters and numbers by one hand.

In addition, the conventional techniques have a disadvantage in that the input speed is slow and the error rate is high.

Accordingly, the present invention has been made to solve all the problems occurring in the related arts as described above, and it is an object of the present invention to provide a keyboard for a visually impaired person and an information recognition system using the same for enabling a blind person to quickly and accurately input letters and numbers The purpose is to do.

It is another object of the present invention to provide a keyboard for a visually impaired person who can quickly input letters and numbers by one hand by attaching a touch screen to a keypad of a keyboard and an information recognition system using the same.

It is another object of the present invention to provide a keyboard for a visually impaired person who can input an input speed of a mobile phone and use the Hangeul input method in a normal manner, and to reduce an error rate, and an information recognition system using the same.

It is another object of the present invention to provide a keyboard for a visually impaired person who can recognize a screen position of a touch screen mounted for inputting letters and numbers by a tactile sense, and an information recognition system using the same.

According to another aspect of the present invention, there is provided a keyboard for the visually impaired, comprising: an input unit for inputting information including Korean and English input keys, numerals and function keys;

And a keypad for inputting letters and numbers in a touch manner.

In the above, the keypad includes a touch screen for inputting characters and numbers by touch,

The touch screen includes a keypad keyboard for inputting letters and numbers.

The keypad may further include a Hangul / number conversion key for Hangul and a number conversion.

The keypad may include a horizontal position recognition unit for recognizing a horizontal position of the touch screen;

And a vertical position recognition unit for recognizing the vertical position of the touch screen.

Wherein the horizontal position recognition unit includes a projection to recognize a horizontal position by a tactile sense.

The vertical position recognition unit may include a projection to recognize a vertical position by a tactile sense.

Wherein the keypad comprises a divide and left move key for division (/) and left direction movement (?);

An asterisk and a right movement key for an asterisk (*) and a rightward movement (→);

A subtraction and an upward movement key for subtraction (-) and upward movement (↑);

An addition and a downward movement key for addition (+) and downward movement (↓);

And further includes an Enter key (Enter).

According to an aspect of the present invention, there is provided an information recognition system using a keyboard for the visually impaired, including an input unit including Korean and English input keys, numerals and function keys, and a keypad for inputting characters and numbers in a touch manner Keyboards for the blind;

And a key recognizing device for recognizing a key input through the keypad of the keyboard for the visually impaired and displaying characters and numbers corresponding to the recognized key on the screen.

The keypad may include a touch screen for inputting characters and numbers in a touch manner;

And a Hangul / number conversion key for Hangul and number conversion,

The touch screen includes a keypad keyboard for inputting letters and numbers.

The keypad may include a horizontal position recognition unit for recognizing a horizontal position of the touch screen;

And a vertical position recognition unit for recognizing the vertical position of the touch screen.

The key recognition device includes a signal receiving unit for receiving a key signal output from the keypad of the keyboard for the visually impaired;

A key recognizing unit for recognizing the key signal received by the signal receiving unit;

A control unit for controlling a character and a numeral display corresponding to the key signal recognized by the key recognizing unit;

And a display unit for displaying letters and numbers on the screen under the control of the control unit.

When the key signal recognized by the key recognizing unit is a Hangul / number conversion signal, the controller recognizes the key signal and controls the audio output for Hangul or numeral,

The key recognition apparatus may further include a voice output unit for outputting a voice indicating whether the current input state is a character or a number according to a voice output control of the control unit.

According to the present invention, by attaching a touch screen to a keypad of a keyboard, a visually impaired person can quickly and accurately input letters and numbers, and the effect of quickly inputting letters and numbers with one hand have.

In addition, according to the present invention, a mobile phone input method that uses a Hangul input method is usually applied, thereby achieving an effect of speeding up the input speed and reducing the error rate.

In addition, according to the present invention, since the screen position of the touch screen can be recognized by the tactile sense, the blind person can input information conveniently.

1 is a configuration diagram of a keyboard for a disabled person according to the present invention;
2 is a block diagram of an information recognition system using a keyboard for the visually impaired according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a block diagram of a keyboard 100 for the visually impaired according to the present invention, which includes an input unit 110 and a keypad 120.

The input unit 110 includes Korean and English input keys, numbers, function keys, and the like, and inputs information. The input unit 110 is configured in the same manner as the rest of the computer keyboard except for the keypad, and the operation is also the same.

The present invention is a keypad portion of a conventional computer keyboard that is conveniently implemented by a visually impaired person.

The keypad 120 functions to input letters and numbers in a touch manner, and includes a touch screen 121 for inputting letters and numbers. The touch screen 121 includes a keypad keyboard for inputting letters and numbers. The keypad keyboard is the same as the keyboard layout of the keypad used for inputting information such as letters and numbers in a mobile phone such as a normal smartphone, and the input method is the same as that of the smartphone.

The keypad 120 includes a Korean / numeric switch key 122 for switching between Korean and numerals, a horizontal position recognizer 128 for recognizing the horizontal position of the touch screen 121, a touch screen 121, And a vertical position recognition unit 129 for recognizing the vertical position of the vertical position.

Here, the horizontal position recognition unit 128 includes projections 128a to 128c to recognize horizontal positions by a tactile sense. The projection 128a indicates the position of the first column in the horizontal position, the projection 128b indicates the second column in the horizontal position, and the projection 128c indicates the third column in the horizontal position.

The vertical position recognition unit 129 includes projections 129a to 129d for recognizing the vertical position by a tactile sense. The projection 129a indicates the position of the first row in the vertical position, the projection 129b indicates the position of the second row in the vertical position, the projection 129c indicates the position of the third row in the vertical position, (129d) indicates the position of the fourth row in the vertical position. Here, the position of a row increases from the bottom to the top. Therefore, the first matrix at the bottom of the matrix becomes (1.1).

Also, the keypad 120 includes a division key for division (/) and leftward movement (←) and a left movement key 123, an asterisk and a right movement key 124 for an asterisk (*) and a right movement (→) An addition and lower movement keys 126 for incrementing (-) and upward movement (↑) and an upward movement key 125, an addition (+) movement and a downward movement ↓, an enter key 127, .

2 is a configuration diagram of an information recognition system using the keyboard 100 for the visually impaired according to the present invention configured as described above.

2, the information recognition system 200 using the keyboard for the visually impaired according to the present invention includes an input unit 110 for inputting information including Korean and English input keys, numbers and function keys, A keyboard 100 for a visually impaired person including a keypad 120 for inputting letters and numbers, a key input unit 120 for recognizing a key input through the keypad 120 of the visually impaired keyboard 100, And a key recognition device 200 for displaying letters and numbers on the screen.

Here, the detailed configuration of the keyboard 100 for a visually impaired person is the same as that of the keyboard 100 for the visually impaired person shown in FIG.

The key recognition apparatus 200 includes a signal reception unit 210 for receiving a key signal output from the keypad 120 of the visually impaired keyboard 100, A key recognition unit 220, a control unit 230 for controlling a character and a numeral display corresponding to the key signal recognized by the key recognition unit 220, a storage for storing data generated under the control of the control unit 230, A display unit 250 for displaying letters and numbers on the screen under the control of the control unit 230 and a display unit 250 for displaying a voice indicating whether the current input state is a letter or a number, And an audio output unit 260 for outputting audio.

When the key signal recognized by the key recognizing unit 220 is a Hangul / number conversion signal, the control unit 230 recognizes the key signal and controls the audio output for Hangul or a number.

Hereinafter, the operation of the keyboard for the visually impaired and the information recognition system using the keyboard according to the present invention will be described in detail.

A method for the blind or general person to input necessary information by operating the input unit 110 of the keyboard 100 for the visually impaired is the same as the method for inputting information through the input unit of the conventional general computer keyboard, do.

In order to input information by operating the keypad 120 of the visually impaired keyboard 100, the visually impaired person initially determines whether the information to be input through the Korean / numeric conversion key 122 is a character or a number. This is very important for the visually impaired. For example, even if it is possible to input information through the touch screen 121, if it is impossible to know whether the information to be inputted by the user is character or numeric, there is a problem in inputting the information.

Accordingly, in the present invention, when the visually impaired person presses the Hangul / Numeral changeover key 122, the signal receiving unit 210 of the key recognizing apparatus 200 receives the corresponding key signal and transfers the received key signal to the key recognizing unit 220. The key recognition unit 220 analyzes the transmitted key signal and transmits the key recognition result to the control unit 230. [ Here, the key recognition method is recognized by using a normal key matrix.

The control unit 230 receives the key recognition result, and if the received key recognition signal is the Hangul / number change key 122, it confirms the previous Hangul / number change state value stored in the storage unit 240. That is, when the visually impaired person presses the Hangul / Numeral changeover key 122, the generated key signal is always the same, so that the controller 23 can not distinguish the key signal. Therefore, every time the Hangul / number change key 122 is pressed in the control unit 23, the last Hangul / number state value stored in the storage unit 240 is reversed and stored. For example, if the previous Hangul / Numeric status value is Hangul, it is reversed to the numerical status value and stored. Accordingly, if the blind person presses the Hangul / Numeric changeover key 122 while the previous Hangul / Numeric status value is a number, the Hangul / Numeric status value stored in the storage unit 240 is updated to Hangul.

Then, the control unit 230 transmits the voice output control data for outputting the Hangul voice to the voice output unit 260 at the same time as updating the Hangul / Numeral status value of the storage unit 240. [ The voice output unit 260 converts the transmitted Hangul voice output control data into voice and outputs it through a speaker. The voice output at this time can be variously set by the user. However, in the present invention, a voice of "Hangul state" is output for the convenience of the user, and a voice of "Numeric state" is output when the user is a number.

Therefore, the visually impaired person recognizes that the information input state is Hangul.

In order to change the information input to the number in the Hangul input state, the Hangul / number change key 122 is pressed again. In this way, the visually impaired can conveniently set up the form (Hangul, numeral) in which the person himself / herself enters the information.

With the information input mode being determined, the visually impaired person touches the keypad keyboard displayed on the touch screen 121 to input desired information.

Here, the keypad keyboard is the same as a keypad keyboard used in a general smart phone or the like. Therefore, in the case of a congenital blind person, it is necessary to memorize the keypad arrangement of the smartphone in advance before inputting the information. However, in the case of acquired visual impairment, it is possible to associate the keypad arrangement without memorizing the keypad arrangement if the smartphone has already been used before the sight loss.

Assuming that the keypad array is remapped by concealing the keypad arrangement in case of a congenital blind person and assuming that the keypad arrangement is reminded in the case of the acquired blind person, the visually impaired person can input information using the touch screen 121 without difficulty can do.

Even if the keypad array is remapped, the most important problem is the location of the keypad array. For example, it is necessary to know where the column position of the touch screen 121 is and where the row is located, so that information can be inputted quickly and accurately.

In order to achieve this, in the present invention, a horizontal position recognizing unit 128 is provided at the lower end of the touch screen 121 to allow a visually impaired person to know the column position of the keypad arrangement, and a vertical position recognizing unit 128 ) So that the visually impaired can know the row position of the keypad array.

Here, the horizontal position recognizing unit 128 is formed with projections 128a to 128c so that the position of the row in the horizontal position can be known by a tactile sense. The projection 128a uses one projection to indicate the position of the first column, the projection 128b uses two projections to indicate the position of the second column, and the projection 128c uses the position of the third column Three protrusions were used to indicate.

Likewise, the vertical position recognizing unit 129 is formed with projections 129a to 129d so that the position of the row in the vertical position can be recognized with a tactile sense. The projection 129a uses one projection to indicate the position of the first row, the projection 129b uses two projections to indicate the position of the second row, and the projection 129c uses the projection of the third row Three projections were used to indicate the position of the fourth row, and the projection 129d used four projections to indicate the position of the fourth row.

Therefore, the visually impaired person uses these protrusions to determine the positions of the rows and columns of the touch screen 121. At this time, the positions of the determined rows and columns are the position coordinates of the keypad keyboard. Here, the keyboard layout of the keypad of the present invention uses a keyboard layout of the 3x4 matrix type, and the Hangul input method can use the Chun Jiin, Naragul, Sky Hangul, Qwerty, etc. already used in a mobile phone such as a conventional smart phone. The Hangeul input method can incorporate all of the above four types of Hangeul input methods and can be selected and used by the user. Only one of the four types of Hangeul input methods can be built in advance to be a separate product It is also possible to implement.

The blind person determines the row through the horizontal position recognizing unit 128 formed at the lower end of the touch screen 121 and determines the row through the vertical position recognizing unit 129 for inputting a character or a number. If the input character is "angle ", it is first assumed that the projection 129c at the vertical position and the projection 128a at the horizontal position are searched with a tactile angle to input the letter " a & Touch the meeting location (3, 1).

At this time, the visually impaired person may go up while touching from the position (1, 1) at the bottom of the bottom. In such a case, a position other than the position to be finally input may also be contacted, thereby causing an error in information input. In order to prevent such an information input error, the key recognition device 200 reads the coordinate information continuously when coordinate information is continuously input by touching, and determines the coordinate information read at the end as the key position value. The visually impaired person makes a contact with another part of his / her finger to find an arbitrary position, and then finds his / her position from the touch screen 121. Accordingly, when the coordinate information is input continuously, the key recognition apparatus 200 recognizes only the coordinate information recognized at the end as the coordinate information inputted by the blind person. This makes it possible to minimize the input error of the visually impaired.

Next, in order to input "ㅣ", the projection 129d in the vertical position and the projection 128a in the horizontal position are tactually searched, and then the positions 4 and 1 that meet with each other are touched, and " After touching the projections 129d of the vertical longitudinal position and the projections 128b of the horizontal position with a tactile sense, the user touches the positions 4, 2 where they meet with each other. Finally, in order to input "a", the protrusion 129c of the vertical position and the protrusion 128a of the horizontal position are tactually searched, and then the user touches the position (3, 1) where they meet. As a result, character information is input as "angle"

When the information input is generated in the keyboard 100 for the visually impaired, the signal receiving unit 210 of the key recognizing apparatus 200 receives the information and the key recognizing unit 220 receives the coordinate information through a coordinate recognition method such as a screen reader . When the coordinates are recognized, the key of the actual key recognition matrix is recognized.

The recognized key information is transmitted to the control unit 230, and the control unit 230 displays the character information input by the blind person on the screen through the display unit 250.

In this way, the blind person can conveniently and accurately input the character and numerical information through the keyboard 100 for the visually impaired.

Here, as another feature of the present invention, the information input to the visually impaired person can be transmitted by voice. With this voice transmission function, the visually impaired can practice the information input and can check whether the inputted information is correct.

For example, when a blind person touches the touch screen 121 to operate a specific key and the recognized key information is transmitted to the control unit 230, the control unit 230 outputs a voice output corresponding to the corresponding key information (260). According to this control, the audio output unit 260 transmits the audio corresponding to the information input by the blind person. When the voice is transmitted in this manner, the visually impaired person can confirm whether the information inputted by him is correct or not, so that the information input practice becomes possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... Keyboard for the visually impaired
110 ... Input
120 ... Keypad
121 ... touch screen
128 ... The horizontal position recognition unit
129 ... The vertical position recognition unit
200 ... Key recognition device
210 ... Signal receiver
220 ... The key recognition unit
230 ... The control unit
250 ... Display portion
260 ... Audio output unit

Claims (11)

1. A keyboard for inputting information,
An input unit for inputting information including Korean and English input keys, numbers and function keys;
A keypad for inputting letters and numbers in a touch manner;
The keypad includes a touch screen for inputting characters and numbers in a touch manner, a horizontal position recognizing unit for recognizing a horizontal position of the touch screen, and a vertical position recognizing unit for recognizing a vertical position of the touch screen,
Wherein the touch screen includes a keypad keyboard for inputting letters and numbers.
delete The keyboard according to claim 1, wherein the keypad further comprises a Hangul / number conversion key for Hangul and number conversion.
delete The keyboard according to claim 1, wherein the horizontal position recognition unit includes a projection to recognize a horizontal position by a tactile sense, and the vertical position recognition unit includes a projection to recognize a vertical position by a tactile sense.
The method of claim 1, wherein the keypad comprises a divide and left move key for division (/) and left direction movement (?);
An asterisk and a right movement key for an asterisk (*) and a rightward movement (→);
A subtraction and an upward movement key for subtraction (-) and upward movement (↑);
An addition and a downward movement key for addition (+) and downward movement (↓);
And further comprises an Enter key (Enter).
A system for inputting information using a keyboard,
A keyboard for the visually impaired comprising an input unit for inputting information including Korean and English input keys, numbers and function keys, and a keypad for inputting letters and numbers in a touch manner;
And a key recognition device for recognizing a key input through the keypad of the keyboard for the visually impaired and for displaying characters and numbers corresponding to the recognized key on the screen;
The keypad includes a touch screen for inputting characters and numbers by a touch method;
And a Hangul / number conversion key for Hangul and number conversion,
The touch screen includes a keypad keyboard for inputting letters and numbers,
Wherein the keypad comprises: a horizontal position recognition unit for recognizing a horizontal position of the touch screen;
And a vertical position recognition unit for recognizing the vertical position of the touch screen.
delete delete [7] The apparatus of claim 7, wherein the key recognition device comprises: a signal reception unit for receiving a key signal output from a keypad of the keyboard for the visually impaired;
A key recognizing unit for recognizing the key signal received by the signal receiving unit;
A control unit for controlling a character and a numeral display corresponding to the key signal recognized by the key recognizing unit;
And a display unit for displaying letters and numbers on a screen under the control of the control unit.
[11] The apparatus of claim 10, wherein the controller recognizes the key signal recognized by the key recognizing unit when the key signal is a Hangul / Numeric conversion signal,
Wherein the key recognition apparatus further comprises a voice output unit for outputting a voice indicating whether a current input state is a letter or a number according to a voice output control of the control unit.

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