KR20190078873A - System and method for secure keypad for the blind - Google Patents

Abstract

Disclosed in the present invention are a security keypad for blind people and an input method in the security keypad which can guide the location of braille to be inputted by a user (a blind person) by providing vibration in boundaries of areas through mapping a braille area for blind people with a screen of a user terminal such as a smartphone, can increase efficiency of information input based on braille, can display the screen in black in order to prevent exposure of the related information to people other than the user, and can provide encryption-based security. In addition, the input method in the security keypad for blind people comprises: a step of dividing a portion of the screen into n (n is a natural number above 6) number of braille areas, and allocating identifiers to the n number of braille areas, respectively; a step of identifying an event braille area, in which touch down and touch up after move on the screen are conducted, among the n number of braille areas; a step of generating bit data by using the identifiers allocated to the event braille area; and a step of inputting a text identified by the bit data into the screen.

Description

TECHNICAL FIELD [0001] The present invention relates to a security keypad and a security keypad for a visually impaired person,

The present invention provides a vibration on a boundary of each area through mapping with a braille area for a visually impaired person to a screen on a user terminal such as a smart phone, so that a user (visually impaired) can know the position of the braille to be input, In order to prevent the user from knowing the efficiency of braille-based information input and the related information, the screen is displayed in black. In addition, the security keypad for the visually impaired and the input method in the security keypad .

Recently, smartphone has been used by many people because of technological advancement, and most smart phones can input information in the form of feedback such as touch input, vibration, sound and visual effect.

However, in the case of the visually impaired, it is inconvenient to use the smartphone input method, and it is difficult to input the braille-based information used by the visually impaired, and in the case of the visual effect based input and feedback method, Attack vulnerabilities, and most smartphone applications do not provide such attack response and security.

Accordingly, there is a need for an input means and a method capable of simultaneously providing input efficiency and security for a visually impaired person in a smartphone environment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a touch-up display device capable of recognizing braille to be input by a user due to touch- So that it is possible to smoothly input the braille characters.

Further, the present invention aims to prevent the braille input by the user from being exposed to the outside by intercepting the braille area by switching the entire screen to black in conjunction with touchdown on the screen for braille input.

It is another object of the present invention to allow a user to input a desired text precisely by constructing a combination of various braille arrangements and bit data in consideration of the size of a delimiter allocated to a braille area in which touch-up is performed.

Further, according to the present invention, various commands (initialization, 1-bit erase, next braille input, transmission, etc.) are allocated through the command area by assigning a command area for command input to an area other than the braille area for inputting braille on the screen, And the like.

Another object of the present invention is to provide a visually impaired person with effective information input and feedback in a smart phone environment and security for related information.

According to another aspect of the present invention, there is provided a security keypad input method for a visually impaired person, the method comprising: dividing a part of a screen into n braille areas (n is a natural number of 6 or more) Identifying an event braille area in which touch-up is performed after touchdown and move in the screen among the n braille areas, using a delimiter allocated to the event braille area, Generating bit data, and inputting the text identified by the bit data to the screen.

In order to accomplish the above object, there is provided a computer program for causing a computer to function as: a processing unit for dividing a part of a screen into braille areas of n (n is a natural number of 6 or more) and allocating a delimiter to each of the n braille areas; A confirmation unit for confirming an event braille area in which a touch-down and a move-up after touch-up are performed on the screen, a generator for generating bit data using a delimiter allocated to the event braille area, And an input unit for inputting the text to be identified on the screen, thereby configuring a security keypad for the visually impaired.

According to the present invention, since the user can recognize the braille to be input due to the touch-up in the specific braille area in which the screen is divided, the user can smoothly input the braille without advanced training.

Further, according to the present invention, the braille input by the user can be prevented from being exposed to the outside by intercepting the braille area by switching the entire screen to black in response to the touchdown on the screen for inputting braille characters.

In addition, according to the present invention, a user can precisely input a desired text by configuring a combination of various braille arrangements and bit data in consideration of the size of a delimiter allocated to a braille area in which touch-up is performed.

Further, according to the present invention, by assigning a command area for command input to an area other than the braille area for braille input on the screen, various commands (initialization, 1-bit erase, next braille input, Etc.) can be performed.

Further, according to the present invention, a function that allows a user (visually impaired person) to more easily recognize the input position of information through mapping between the braille information and the screen space used by the visually impaired and vibration effect feedback, , It is possible to increase the input efficiency of the user (visually impaired) by providing initialization, 1-bit erase, next braille input and transmission function in the information input by utilizing the touch drag event.

In addition, according to the present invention, it is possible to provide security through an encryption function for input data.

1 is a diagram illustrating a specific configuration of a security keypad for a visually impaired person according to an exemplary embodiment of the present invention.
2 is a diagram for explaining an example of allocating a braille area by dividing a part of a screen according to an embodiment of the present invention.
3 is a diagram illustrating an example of generating bit data through touch-up on a screen according to an embodiment of the present invention.
4 is a diagram illustrating an example of performing an instruction through a mood after a touchdown on the screen according to an embodiment of the present invention.
5 is a diagram illustrating an example of inputting text by combining a plurality of 6-bit bit data according to an embodiment of the present invention.
6 is a flowchart illustrating an input method in a security keypad for a visually impaired person according to an exemplary embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

1 is a diagram illustrating a specific configuration of a security keypad for a visually impaired person according to an exemplary embodiment of the present invention.

The security keypad 100 for a visually impaired person of the present invention may include a processing unit 110, an authentication unit 120, a generation unit 130, and an input unit 140. The security keypad 100 may further include an execution unit 150 and a vibration unit 160 according to an embodiment.

First, the processing section 110 can divide a part of the screen into n braille regions. That is, the processing unit 110 serves to divide the center portion, which occupies most of the screen, into a plurality of braille regions, in which a finger touch is mainly performed on the screen. The number n of braille regions divided here can be set to a natural number of at least 6 in consideration of a 6-point braille character (BANA code).

After the division of the braille region, the processing unit 110 can allocate the separator to each of the n braille regions. That is, the processing unit 110 maps the delimiter for independently distinguishing each braille area by the braille area, for example, as the touch-up is performed in the specific braille area, Based on the delimiter mapped to the braille area of the character string.

In the assignment of the delimiters, the processing unit 110 may sequentially assign delimiters having different values to each of the n braille regions. For example, under the condition that the braille area is divided into six parts, the processing part 110 can prepare six numbers from 1 to 6 and utilize it as a delimiter to be allocated to six braille areas.

In addition, the processing unit 110 may switch the entire screen to black by interlocking with the touchdown so that the event-braille area in which the touch-up is performed is not exposed. That is, as the user touches the screen for braille input, the processing unit 110 treats the placement of the braille area and the like in black so that the external user can perform braille input while the user touches the screen It is possible to precisely recognize the braille area where the touch-up is actually performed.

The confirmation unit 120 can identify an event braille area in which touch-down and move-up touch-ups are performed in the screen among the n braille areas. That is, the confirmation unit 120 reads the mode that the user touches on the screen, and confirms the braille area where the touch-up is actually performed as the event braille area in which the event occurs.

In the confirmation of the event braille area, if the braille area in which the touchdown is performed and the braille area in which the touch-up is performed differ from each other, the confirmation unit 120 determines that the touch- You can check the event braille area. On the other hand, if the braille area in which the touchdown is performed and the braille area in which the touch-up is performed are the same, the confirmation unit 120 can confirm the braille area as an event braille area without checking the drag after the user touchdown.

The generator 130 may generate bit data using the delimiter assigned to the event braille area. That is, the generator 130 may convert the delimiter assigned to the braille area in which the user's touch-up is performed into 6-bit data of binary numbers to generate the bit data.

For example, when the delimiter assigned to the event-braille area is '1', the generator 130 generates 6-bit data '000001 (2)' of binary number for the number '1' as bit data .

When a plurality of touch-up areas are consecutively formed at predetermined time intervals, the generating unit 130 divides the delimiter allocated to each of the plurality of event braille areas into an event braille area And the bit data corresponding to the listed delimiters can be generated.

As the user confirms a plurality of event braille regions continuously in a short interval of touchdown-movie (drag) -touch-up, the generation unit 130 outputs the delimiter allocated to each of the plurality of identified event braille regions in the order of confirmation It is possible to generate independent bit data.

Here, the predetermined time can be set to a time sufficient for the user to input a necessary braille in inputting one text.

For example, the first touchup is performed in the braille area to which the delimiter '4' is allocated, the second touchup is performed within the predetermined '1 second', the braille area to which the delimiter '5' is allocated, , And the third touchup is performed in the braille area to which the delimiter '6' is allocated, the generator 130 arranges the delimiters 4 '' 5 '' 6 'in the touch-up sequence (order in which the event braille areas are identified) , And bit data '111000 (2)' corresponding to the listed '456'.

Also, the generating unit 130 may be configured to determine, from among the listed delimiters, a delimiter that changes the trend of the value compared to the adjacent delimiter, and generates bit data of different information based on the delimiter can do.

For example, in addition to the above example, if the fourth touch-up and the fifth touch-up are performed within a predetermined 'one second' and the braille areas assigned to the separators '1' and '2' The controller 130 can determine '1', which is listed earlier and decreases in value, from among the delimiter '4' '5' '6' '1' '2' listed as neighboring delimiters.

After determining the puncturer, the generating unit 130 classifies delimiters, which are listed before the puncturer, into a first delimiter group, generates first bit data corresponding to the first delimiter group, The delimiter arranged after the puncturer may be grouped into a second delimiter group and the second bit data corresponding to the second delimiter group may be generated.

In the above example, the generator 130 classifies the delimiter '4' '5' '6' listed before the classifier '1' into a first delimiter group, and outputs the first bit data corresponding to the first delimiter group ' '111000 (2)', further dividing the puncturer identifier '1' and delimiter '2' listed after the puncturer delimiter into a second delimiter group, and generating second bit data '000011 (2) '.

If the puncturer can not be determined, the generator 130 may generate the second bit data by grouping all the puncturers into the second puncturer group.

For example, if the listed delimiters are '4', '5', '6', and '4', '5', and '6', the generator 130 can not determine the delimiter that increases in value compared to neighboring delimiters, '4' '5' '6' may be grouped into a second separator group to generate the second bit data '111000 (2)'. At this time, the generator 130 may generate the first bit data so as to have zero size (e.g., 000000 (2) ').

The input unit 140 may input the text identified by the bit data to the screen. In other words, the input unit 140 can select the text specified by the bit data generated in association with the event braille area, and output the selected text.

In particular, under the condition that the first bit data and the second bit data according to the band separator are generated, the input unit 140 sums the first bit data and the second bit data and combines them into bit data, Lt; RTI ID = 0.0 > a < / RTI >

For example, under the condition that the first bit data '111000 (2)' and the second bit data '000001 (2)' are generated, the input unit 140 adds' 111000 (2) 'and' 000001 111000 (2) 000001 (2) 'of 12 bits to identify one text (uppercase A) corresponding to the combined bit data.

According to an embodiment, the security keypad 100 of the present invention may further include an execution unit 150 that executes a command according to braille or text input.

In order to execute the instruction, first, the processing unit 110 divides another part of the screen into m instruction areas (m is a natural number of 1 or more) according to the direction, assigns an instruction to each of the m instruction areas can do. That is, the processing unit 110 can allocate an instruction to distinguish the instruction regions from the center portion of the screen in which the braille region is divided, with the border portion in the upper, lower, left, and right directions as the instruction region.

For example, the processing unit 110 may divide the frame portion in the upper direction of the screen into one instruction region, and assign an instruction concerning the instruction to initialize the input braille or text in the instruction region.

The execution unit 150 may execute a command associated with the text using a command assigned to the command region when the touch enters the command region through the move after touchdown on the screen.

For example, when the touch of a user enters a command area in which the touch is divided in the upper direction of the screen through a touchdown-movie (drag) on the screen, the execution unit 150 generates a command , The command can be executed by removing the previously inputted text 'A'.

In addition, the security keypad 100 of the present invention may further include a vibration unit 160 that generates vibration according to an embodiment.

That is, the vibration unit 160 may position the vibration means at a boundary line surrounding the braille region and activate the vibration means for the event braille region in which the touch-up is performed to generate vibration.

For example, when touch-up is performed in the braille area to which the delimiter '6' is allocated and the corresponding braille area is identified as the event braille area, the vibration unit 160 displays the vibrating means Thereby enabling the user to recognize the Braille input box associated with the delimiter '6'.

In addition, the vibration unit 160 arranges the vibration means having different vibration patterns for each braille region, thereby enabling the user who is the visually impaired to recognize the touch-up Braille region by the sense of vibration.

According to the present invention, since the user can recognize the braille to be input due to the touch-up in the specific braille area in which the screen is divided, the user can smoothly input the braille without advanced training.

Further, according to the present invention, the braille input by the user can be prevented from being exposed to the outside by intercepting the braille area by switching the entire screen to black in response to the touchdown on the screen for inputting braille characters.

In addition, according to the present invention, a user can precisely input a desired text by configuring a combination of various braille arrangements and bit data in consideration of the size of a delimiter allocated to a braille area in which touch-up is performed.

Further, according to the present invention, by assigning a command area for command input to an area other than the braille area for braille input on the screen, various commands (initialization, 1-bit erase, next braille input, Etc.) can be performed.

Further, according to the present invention, a function that allows a user (visually impaired person) to more easily recognize the input position of information through mapping between the braille information and the screen space used by the visually impaired and vibration effect feedback, , It is possible to increase the input efficiency of the user (visually impaired) by providing initialization, 1-bit erase, next braille input and transmission function in the information input by utilizing the touch drag event.

In addition, according to the present invention, it is possible to provide security through an encryption function for input data.

2 is a diagram for explaining an example of allocating a braille area by dividing a part of a screen according to an embodiment of the present invention.

In the security keypad of the present invention, a part of the screen can be divided into six braille areas, and a delimiter can be assigned to each of six divided braille areas.

As shown in FIG. 2, the security keypad may be divided into six braille regions, and a unique identifier may be assigned to each of the six braille regions. have.

At this time, each of the six divided Braille regions is separated to a boundary line, and a vibration unit is disposed along the boundary line of the security keypad, so that vibration can be generated in conjunction with touchup of the user. The occurrence of such a vibration induces the effect of allowing the user to easily input the braille with the input method according to the present invention without requiring additional training by allowing the user to recognize the generated vibration as a protrusion.

In another embodiment, the security keypad of the present invention may be arranged so that a user who is visually impaired can accurately recognize the position of the braille area to be touched up by a sense of vibration by arranging vibration means having different vibration patterns for each braille area Support.

For example, in the braille area to which the delimiter " 1 " is assigned, the vibration means of the vibration pattern generated by alternating the long vibration and the short vibration is arranged, And a vibrating means of a vibration pattern generated by alternating between a long vibration, a short vibration and a long vibration alternately can be arranged in the braille area to which the delimiter '3' is assigned. In the braille area to which the delimiter '4' is assigned, the vibration means of the vibration pattern generated by alternating 'strong vibration' and 'weak vibration' is arranged, and in the braille area to which the delimiter '5' is allocated, 'short vibration- The vibrating means of the vibration pattern occurring alternately can be arranged, and the vibrating means of the vibration pattern generated while alternating the strong vibration, weak vibration and strong vibration can be arranged in the braille area to which the delimiter '6' is allocated.

3 is a diagram illustrating an example of generating bit data through touch-up on a screen according to an embodiment of the present invention.

The security keypad of the present invention can identify the braille area in which the touch-up is finally performed through the move after touchdown of the user on the screen as an event braille area. Thereafter, the security keypad can generate bit data using the delimiter assigned to the event braille area.

Particularly, when a plurality of event braille areas are consecutively confirmed at predetermined time intervals, the security keypad sequentially arranges the plurality of event braille areas in the ascertained order, and generates 6-bit bit data corresponding to the listed delimiters can do.

At this time, the security keypad can determine a piece of delimiter whose value decreases compared to the adjacent delimiters, which are listed before, among the delimiters listed, and generate bit data of different information based on the delimiter delimiter.

3, when touch-up is performed in the braille area to which the delimiter '4', '5', '6', and '1' are allocated and the four braille areas are identified as the event braille area, 1 " to " decrease " to " decrease "

3, the security keypad binds the delimiter '4', '5', and '6' into the first delimiter group, and outputs the first bit data '111000 (2)' corresponding to the first delimiter group, 1 'may be grouped into a second delimiter group, and second bit data' 000001 (2) 'corresponding to the second delimiter group may be generated.

Then, the security keypad combines the first bit data '111000 (2)' and the second bit data '000001 (2)' to combine them into bit data, thereby generating a single text , Capital letter A).

4 is a diagram illustrating an example of performing an instruction through a mood after a touchdown on the screen according to an embodiment of the present invention.

The security keypad of the present invention can execute various commands through the command area by assigning a command area for command input to an area other than the braille area for braille input on the screen.

As shown in FIG. 4, the security keypad is divided into a command area for allocating an instruction regarding an instruction for 'initializing' the frame portion in the upper direction of the screen, and when the user performs a drag operation to the upper end after the touchdown, The user can execute an instruction to initialize the input braille or text when entering the command area.

In addition, the security keypad divides the frame portion in the left direction of the screen into a command area to which a command relating to a command for '1-bit clear' is allocated, and moves the cursor to the left end after touchdown, When entering the command area, it is possible to execute an instruction to delete one braille / text input immediately before the entered braille or text.

In addition, the security keypad divides the frame portion on the right side of the screen into a command region for allocating a command for a command for 'next braille input', and when the user touches and moves to the right end, When entering the command area, it is possible to execute a command (e.g., cursor movement, etc.) that allows the user to input the next braille / text to be input.

In addition, the security keypad divides the frame portion in the downward direction of the screen into a command area for allocating an instruction regarding a command for 'transfer', and after the user touches down and moves to the upper end, , It is possible to execute an instruction to transmit all of the input braille or text to a desired destination (for example, a mail receiving address).

5 is a diagram illustrating an example of inputting text by combining a plurality of 6-bit bit data according to an embodiment of the present invention.

Under the condition that the first bit data and the second bit data according to the band separator are generated, the security keypad combines the first bit data and the second bit data and combines them into bit data so that one text corresponding to the combined bit data Can be identified.

At this time, the security keypad can prevent the braille input by the user from being exposed to the outside by intercepting the braille area by switching the entire screen to black in conjunction with touchdown on the screen for braille input.

As shown in FIG. 5, under the condition that the first bit data '111000 (2)' and the second bit data '000001 (2)' are generated according to touch up on the screen switched to black, The keypad combines '111000 (2) 000001 (2)' of 12 bits by summing '111000 (2)' and '000001 (2)' and one text (uppercase A) corresponding to this combined bit data. Can be identified.

In addition, according to the touch-up on the screen switched to black, the first bit data '000000 (2)' and the second bit data '110000 000000 (2) and 110000 (2) 'are combined to combine 12 bits of' 000000 (2) 110000 (2) 'under the condition that the generated bit data (Lower case a) corresponding to the text (lower case a).

In addition, according to the touch-up on the screen switched to black, there is no distortion discriminator and the first bit data '000000 (2)' is set and the second bit data '3', '5' Under the condition that the bit data '001011 (2)' is generated, the security keypad combines' 000000 (2) 001011 (2) 'of 12 bits by summing' 000000 (2) 'and' 001011 (Number 0) corresponding to this combined bit data.

Hereinafter, a work flow of an input method in a security keypad for a visually impaired person according to an embodiment of the present invention will be described in detail.

6 is a flowchart illustrating an input method in a security keypad for a visually impaired person according to an exemplary embodiment of the present invention.

The input method in the security keypad for the visually impaired according to the present embodiment can be performed by the security keypad described above.

The security keypad 100 divides a part of the screen into n braille areas (610). The step 610 may be a process of dividing the central portion occupying most of the screen, in which the finger touch mainly occurs on the screen, into a plurality of braille regions. The number n of braille regions divided here can be set to a natural number of at least 6 in consideration of a 6-point braille character (BANA code).

After the braille area is divided, the security keypad 100 allocates a delimiter to each of the n braille areas (620). In step 620, a delimiter for independently distinguishing each braille area is mapped for each braille area. For example, as a touch-up operation is performed in a specific braille area, a braille user, who may be a blind person, Based on the identifier mapped to the region.

In the assignment of the delimiters, the security keypad 100 may sequentially assign delimiters having different values to each of the n braille regions. For example, under the condition that the braille area is divided into six, the security keypad 100 can prepare six numbers from 1 to 6 and utilize it as a delimiter for allocating it to six braille areas.

In addition, in step 620, the security keypad 100 may switch the entire screen to black in cooperation with the touchdown so that the event-braille area in which the touch-up is performed is not exposed. That is, as the user touches the screen for braille inputting, the security keypad 100 treats the placement of the braille area and the like in black, thereby allowing the outside person to input the braille input while the user touches the screen. It is possible to precisely recognize the braille area in which the touch-up is actually performed.

In addition, the security keypad 100 may identify an event braille area in which touch-up and touch-up after the touchdown in the screen are performed among the n braille areas (630). Step 630 may be a process of reading an aspect of touching on the screen by the user and confirming the braille area in which the touch-up is actually performed as the event braille area in which the event occurs.

In the event of checking the event braille area, if the braille area where the touchdown is performed and the braille area where the touch-up is performed are different from each other, the security keypad 100 confirms that the touch- You can check the event braille area. On the other hand, if the braille area in which the touchdown is performed and the braille area in which the touch-up is performed are the same, the confirmation unit 120 can confirm the braille area as an event braille area without checking the drag after the user touchdown.

The security keypad 100 may generate bit data using a delimiter assigned to the event braille area (640). Step 640 may be a process of converting the delimiter assigned to the braille area in which the user's touch-up is performed into the 6-bit data of binary numbers to generate the bit data.

For example, if the delimiter assigned to the event braille area is '1', the security keypad 100 generates 6-bit data '000001 (2)' of binary number for the number '1' as bit data .

In step 640, when a plurality of touch-up areas are consecutively formed at predetermined time intervals, the security keypad 100 displays the separators assigned to each of the plurality of event braille areas, It is possible to arrange the event braille areas in the order in which they are checked and generate bit data corresponding to the delimiters listed.

As the user confirms several event braille areas in succession at a short interval of touchdown-movie (drag) -touch-up, the security keypad 100 displays the delimiter assigned to each of the identified plurality of event braille areas, It is possible to generate independent bit data.

Here, the predetermined time can be set to a time sufficient for the user to input a necessary braille in inputting one text.

For example, the first touchup is performed in the braille area to which the delimiter '4' is allocated, the second touchup is performed within the predetermined '1 second', the braille area to which the delimiter '5' is allocated, , And the third touchup is performed in the braille area to which the delimiter '6' is allocated, the security keypad 100 lists the delimiter '4' '5' '6' in the touch-up sequence (the order in which the event braille area is identified) , And bit data '111000 (2)' corresponding to the listed '456'.

In addition, in step 640, the security keypad 100 determines an outline discriminator in which the trend of the value is changed as compared with the neighboring delimiter listed among the delimiters listed above, The bit data of the bit stream can be generated.

For example, in addition to the above example, when the fourth touch-up and the fifth touch-up are performed within a predetermined 'one second' and the braille areas assigned to the separators '1' and '2' The controller 100 can determine '1', which is listed earlier and decreases in value, from among the delimiter '4' '5' '6' '1' '2' listed as neighboring delimiters.

After determining the puncturer, the security keypad 100 binds delimiters, which are listed before the puncturer, into a first delimiter group, generates first bit data corresponding to the first delimiter group, The delimiter arranged after the puncturer may be grouped into a second delimiter group and the second bit data corresponding to the second delimiter group may be generated.

In the above example, the security keypad 100 classifies the delimiter '4' '5' '6' listed before the classifier '1' into a first delimiter group, and the first bit data corresponding to the first delimiter group ' '111000 (2)', further dividing the puncturer identifier '1' and delimiter '2' listed after the puncturer delimiter into a second delimiter group, and generating second bit data '000011 (2) '.

If the puncturer can not be determined, the security keypad 100 may generate the second bit data by grouping all of the delimiters listed in the delimiter group into the second delimiter group.

For example, if the listed delimiters are '4', '5', '6', and the values continuously decrease, the security keypad 100 will not be able to determine a classifier that will increase in value relative to neighboring delimiters, '4' '5' '6' may be grouped into a second separator group to generate the second bit data '111000 (2)'. At this time, the security keypad 100 may generate no first bit data or have a size of 0 (e.g., 000000 (2) ').

The security keypad 100 may input the text identified by the bit data to the screen (650). Step 650 may be a process of selecting the text designated by the bit data generated in association with the event braille area and outputting the selected text on the screen.

In particular, under the condition that the first bit data and the second bit data according to the band separator are generated, the security keypad 100 sums the first bit data and the second bit data and combines them into bit data, One text corresponding to the data can be identified.

For example, under the condition that the first bit data '111000 (2)' and the second bit data '000001 (2)' are generated, the security keypad 100 transmits' 111000 (2) 'and' 000001 (2) 000001 (2) 'of 12 bits can be combined to identify one text (uppercase A) corresponding to the combined bit data.

According to an embodiment, the security keypad 100 of the present invention can execute commands according to braille or text input.

For execution of the command, the security keypad 100 divides another part of the screen into m command areas (m is a natural number of 1 or more) according to the direction, and allocates an instruction to each of the m command areas can do. That is, the security keypad 100 may assign a border portion in the upper, lower, left, and right directions from the central portion of the screen in which the Braille region is divided to a command region, and assign an orderer capable of distinguishing each command region.

For example, the security keypad 100 may divide the frame portion in the upper direction of the screen into one command area, and allocate an instruction regarding the command to initialize the input braille or text into the command area.

When the touch enters the command area through the move after the touchdown on the screen, the security keypad 100 can execute a command associated with the text using the command assigned to the entered command area.

For example, when the touch of a user enters a command area in which the touch is divided in the upper direction of the screen through a touchdown-movie (drag) on the screen, the security keypad 100 displays, based on the command 'initialization' , The command can be executed by removing the previously inputted text 'A'.

Further, the security keypad 100 of the present invention can generate vibration according to the embodiment.

That is, the security keypad 100 may arrange the vibration means at a boundary line surrounding the Braille region, and activate the vibration means for the event braille region in which the touch-up is performed to generate vibration.

For example, when touch-up is performed in the braille area to which the delimiter '6' is allocated, and the corresponding braille area is identified as the event braille area, the security keypad 100 displays, Thereby enabling the user to recognize the Braille input box associated with the delimiter '6'.

In addition, the security keypad 100 supports the user who is visually impaired to recognize the touch-up Braille area by a sense of vibration by disposing vibration means having different vibration patterns for each braille area.

According to the present invention, since the user can recognize the braille to be input due to the touch-up in the specific braille area in which the screen is divided, the user can smoothly input the braille without advanced training.

Further, according to the present invention, the braille input by the user can be prevented from being exposed to the outside by intercepting the braille area by switching the entire screen to black in response to the touchdown on the screen for inputting braille characters.

In addition, according to the present invention, a user can precisely input a desired text by configuring a combination of various braille arrangements and bit data in consideration of the size of a delimiter allocated to a braille area in which touch-up is performed.

Further, according to the present invention, by assigning a command area for command input to an area other than the braille area for braille input on the screen, various commands (initialization, 1-bit erase, next braille input, Etc.) can be performed.

Further, according to the present invention, a function that allows a user (visually impaired person) to more easily recognize the input position of information through mapping between the braille information and the screen space used by the visually impaired and vibration effect feedback, , It is possible to increase the input efficiency of the user (visually impaired) by providing initialization, 1-bit erase, next braille input and transmission function in the information input by utilizing the touch drag event.

In addition, according to the present invention, it is possible to provide security through an encryption function for input data.

The method according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: security keypad 110:
120: confirmation unit 130:
140: Input unit 150: Execution unit
160:

Claims (16)

Dividing a part of the screen into braille areas of n (n is a natural number of 6 or more), and allocating a delimiter to each of the n braille areas;
Identifying an event braille region in which touch up is performed after touchdown and move in the screen among the n braille regions;
Generating bit data using a delimiter assigned to the event braille area; And
Inputting the text identified by the bit data to the screen
The method comprising the steps of: The method according to claim 1,
When a plurality of touch-up areas are consecutively formed at predetermined time intervals,
Wherein the generating of the bit data comprises:
Arranging delimiters assigned to each of the plurality of event braille areas in an order in which event braille areas are identified; And
Generating bit data corresponding to the delimiters listed above
The method comprising the steps of: 3. The method of claim 2,
Wherein the allocating the delimiter comprises:
Sequentially assigning a delimiter having a different value to each of the n braille regions;
Lt; / RTI >
Wherein the generating of the bit data comprises:
Determining an outline discriminator in which the value decreases as compared with a neighboring delimiter among the delimiters listed above;
Grouping delimiters previously listed in the classifier into a first delimiter group and generating first bit data corresponding to the first delimiter group; And
Grouping the puncturer, the delimiter listed after the puncturer, into a second delimiter group, and generating second bit data corresponding to the second delimiter group
The method comprising the steps of: The method of claim 3,
If it is not possible to determine the classifier,
Wherein the generating of the bit data comprises:
Generating the second bit data by grouping all of the delimiters listed in the second delimiter group
Wherein the security keypad input method further comprises: The method of claim 3,
Wherein the step of inputting the text on the screen comprises:
Summing the first bit data and the second bit data and combining them into the bit data; And
Identifying one text corresponding to the combined bit data
The method comprising the steps of: The method according to claim 1,
Dividing another part of the screen into m instruction areas (m is a natural number equal to or greater than 1) according to a direction, and allocating an instruction to each of the m instruction areas; And
When the touch enters the command area through the move after the touchdown on the screen,
Executing a command associated with the text using the commander assigned to the command area;
Wherein the security keypad input method further comprises: The method according to claim 1,
Switching the entire screen to black by interlocking with the touchdown to prevent the event-braille area in which the touch-up is performed from being exposed
Wherein the security keypad input method further comprises: The method according to claim 1,
Disposing a vibration means at a boundary line surrounding the braille area; And
Activating the vibrating means for the event braille region in which the touch-up is performed to generate vibration
Wherein the security keypad input method further comprises: A processing unit for dividing a part of the screen into braille areas of n (n is a natural number of 6 or more) and allocating delimiters to each of the n braille areas;
A confirmation unit for confirming an event braille area in which touch-down and move-after touch-up are performed in the screen among the n braille areas;
A generator for generating bit data using a delimiter assigned to the event braille area; And
An input unit for inputting the text identified by the bit data into the screen;
A security keypad for the visually impaired. 10. The method of claim 9,
When a plurality of touch-up areas are consecutively formed at predetermined time intervals,
The generating unit,
The separators allocated to each of the plurality of event braille areas are arranged in the order in which the event braille areas are identified,
And generates bit data corresponding to the delimiters listed above
Security keypad. 11. The method of claim 10,
Wherein,
Sequentially assigning delimiters having different values to each of the n braille regions,
Wherein the generation unit comprises:
Determining an outline discriminator in which the value decreases compared to neighboring delimiters among the delimiters listed above,
A delimiter arranged before the puncturer is grouped into a first delimiter group, first bit data corresponding to the first delimiter group is generated,
The puncturing delimiter, the puncturer delimited by the delimiter delimiter are grouped into a second delimiter group, and second bit data corresponding to the second delimiter group is generated
Security keypad. 12. The method of claim 11,
If it is not possible to determine the classifier,
Wherein the generation unit comprises:
And all of the delimiters listed are grouped into the second delimiter group to generate the second bit data
Security keypad. 12. The method of claim 11,
Wherein the input unit comprises:
Summing the first bit data and the second bit data to combine the first bit data and the second bit data into the bit data,
Identifying one text corresponding to the combined bit data
Security keypad. 10. The method of claim 9,
Wherein,
Dividing a different part of the screen into m instruction areas (m is a natural number equal to or greater than 1) according to a direction, allocating an instruction to each of the m instruction areas,
The security keypad includes:
And an execution unit for executing a command associated with the text using a command assigned to the command area when the touch enters the command area after the touchdown on the screen,
Further comprising a security keypad. 10. The method of claim 9,
Wherein,
The entire screen is switched to black in cooperation with the touchdown so that the event-braille area in which the touch-up is performed is not exposed
Security keypad. 10. The method of claim 9,
A vibrating means is disposed at a boundary line surrounding the braille region, and a vibrating means for vibrating the vibrating means with respect to the event braille region in which the touch-
Further comprising a security keypad.

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