KR102108972B1 - System and method for secure keypad for the blind - Google Patents

Abstract

The present invention provides a vibration on a boundary for each area through mapping with a braille area for the visually impaired to a screen on a user terminal such as a smart phone, so that a user (visually impaired) can know the location of the braille. The effectiveness of braille-based information input and the screen is black to prevent other users from knowing the related information. In addition, a security keypad for visually impaired users and a security keypad input method that provides encryption-based security Disclosed.
The security keypad input method for the visually impaired comprises dividing a part of the screen into n braille areas (where n is a natural number of 6 or more), and assigning a separator to each of the n braille areas, among the n braille areas , Checking an event braille area in which touch up is performed after touch down and move on the screen, and generating bit data using a separator assigned to the event braille area And inputting text identified by the bit data into the screen.

Description

Security keypad for visually impaired and input method from security keypad {SYSTEM AND METHOD FOR SECURE KEYPAD FOR THE BLIND}

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

Smartphones are easily used by many people due to recent technological advances, and most smartphones can input information in the form of touch input and feedback such as vibration, sound, and visual effects.

However, in the case of the visually impaired, there is inconvenience in the use of such a smart phone input method, and the disadvantage is that it is difficult to input information based on braille used by the visually impaired, and in the case of the input and feedback method based on the visual effect, it is beyond the shoulder of the attacker. It can have attack vulnerabilities, and most smartphone applications have the disadvantage of not providing such responsiveness and security.

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

The present invention has been devised to solve the above problems, and the present invention allows a user to recognize a braille desired to be input due to a touch-up in a specific braille area in which a screen is divided, so that the user can perform without much education. It aims to make braille input smooth.

In addition, the present invention aims to prevent the braille inputted by the user from being exposed to the outside by interlocking the entire screen with a touchdown on the screen for braille input to cover the braille area.

In addition, the present invention aims to enable a user to accurately input desired text by constructing a combination of various braille arrangements and bit data in consideration of the size of a separator allocated to a braille area where touch-up is performed.

In addition, according to the present invention, various commands (initialization, 1-bit erasing, next braille input, transmission, etc.) are assigned to the screen by assigning a command area for command input to an area other than the braille area for braille input. It aims to be able to perform.

In addition, an object of the present invention is to provide an effective information input and feedback for a visually impaired person in a smartphone environment, and to provide security for related information.

A security keypad input method for a visually impaired person to achieve the above object comprises: dividing a part of the screen into n braille areas (where n is a natural number of 6 or more), and assigning a separator to each of the n braille areas, Among the n braille areas, identifying an event braille area in which touch up and touch up on the screen are performed, using a separator assigned to the event braille area It may include generating bit data, and inputting text identified by the bit data into the screen.

In addition, as a technical configuration for achieving the above object, a processing unit for dividing a part of the screen into n braille regions (where n is a natural number of 6 or more) and assigning a separator to each of the n braille regions, the n braille Among the regions, a confirmation unit for confirming an event braille region in which touch-up and move-up on the screen are performed, a generating unit for generating bit data using a separator assigned to the event braille region, and the bit data A security keypad for the visually impaired may be configured by including an input unit for inputting the identified text on the screen.

According to the present invention, due to the touch-up in a specific braille area in which the screen is divided, the user can recognize the braille desired to be input, so that the user can smoothly enter the braille without much education.

Further, according to the present invention, by interlocking with the touchdown on the screen for braille input, the entire screen is switched to black to cover the braille area, so that the braille input by the user is not exposed to the outside.

In addition, according to the present invention, considering the size of the separator allocated to the braille area where the touch-up is performed, a combination of various braille arrays and bit data can be configured to enable the user to accurately input desired text.

In addition, according to the present invention, various commands (initialization, 1-bit erasing, next braille input, transmission through this command area) are allocated by assigning a command area for command input to an area other than the braille area for braille input on the screen. Etc.).

In addition, according to the present invention, through the mapping between the braille information used by the visually impaired and the screen space and feedback of vibration effects, the user (visually impaired) can more easily recognize the input location of the information, and touch up and move , By using the touch drag event, it is possible to increase the input efficiency of the user (visually impaired) by providing initialization, 1-bit erasing, next braille input, and transmission functions in the information input.

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

1 is a view showing a specific configuration of a security keypad for the visually impaired according to an embodiment of the present invention.
2 is a view for explaining an example of allocating a braille area by dividing a part of the 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 a command through a mood after a touchdown on a 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 secure keypad for a visually impaired person according to an 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 or limited by the embodiments. The same reference numerals in each drawing denote the same members.

1 is a view showing a specific configuration of a security keypad for the visually impaired according to an embodiment of the present invention.

The security keypad 100 for the visually impaired of the present invention may include a processing unit 110, a confirmation unit 120, a generation unit 130, and an input unit 140. In addition, the security keypad 100 may be configured to additionally include an execution unit 150 and a vibration unit 160 according to an embodiment.

First, the processing unit 110 may divide a part of the screen into n braille regions. That is, the processing unit 110 serves to divide the central portion occupying most of the screen into a plurality of braille areas, which is mainly performed by finger touch on the screen. Here, the number n of divided braille regions may be set to a natural number of at least 6 in consideration of 6-point braille (BANA code).

After dividing the braille area, the processor 110 may allocate a separator to each of the n braille areas. That is, the processor 110 maps delimiters that separate each braille area independently for each braille area, for example, as a touch-up is performed in a specific braille area, a braille that a user who may be visually impaired inputs. It is possible to recognize based on the separator mapped to the Braille area of.

In the allocation of the separators, the processor 110 may sequentially assign the separators having different values to each of the n braille areas. For example, under the condition that the braille area is divided into six, the processing unit 110 may prepare six numbers from 1 to 6 and use them as separators for each of the six braille areas.

In addition, the processor 110 may switch the entire screen to black in connection with the touchdown, so that the event braille area in which the touchup is performed is not exposed. That is, as the user touches the screen for braille input, the processing unit 110 obscures the arrangement of the braille area in black, thereby surpassing the action of the external person entering braille while the user touches the screen. Even if viewed, it may be impossible to accurately recognize the braille area where the touch-up is actually performed.

The confirmation unit 120 may check an event braille region in which the touch-up and move-up touch-up on the screen are performed among the n braille regions. That is, the confirmation unit 120 reads the user's touch on the screen, and serves to check the braille area where the touch-up is actually performed as the event braille area where the event occurred.

When checking the event braille area, when the braille area where the touchdown is made and the braille area where the touchup is made are different, the confirmation unit 120 checks the move (drag) after the user touches down, and then the touchup is actually performed. You can check the event braille area. On the other hand, if the braille area where the touchdown is made and the braille area where the touchup is made are the same, the confirmation unit 120 may check the corresponding braille area as an event braille area without confirming the move (drag) after the user touches down.

The generation unit 130 may generate bit data using the separator assigned to the event braille area. That is, the generation unit 130 may serve to generate the bit data by converting the separator allocated for the braille area in which the user touches up to 6-bit binary data.

For example, when the separator assigned to the event braille area where the touch-up is made is the number '1', the generation unit 130 generates binary data for the number '1' of 6-bit data '000001 (2)' as binary data. Can be.

In addition, when a plurality of touch-ups are continuously performed at a predetermined time interval, and a plurality of event braille areas are identified, the generation unit 130 displays the separators assigned to each of the plurality of event braille areas, and the event braille area It can be arranged in the order of confirmation, and bit data corresponding to the above-described delimiters can be generated.

As the user continuously checks several event braille areas by continuously touching down-moving (dragging) -touch-up at short intervals, the generator 130 identifies the identifiers assigned to each of the identified plurality of event braille areas, in the order of confirmation. As can be recognized, independent bit data can be generated.

Here, the predetermined time interval may be set as a time sufficient for a user to input required braille in inputting one text.

For example, the first touch-up is made in a braille area to which the separator '4' is assigned, within a defined '1 second', and the second touch-up is made in a braille area to which the separator '5' is assigned, and also within a defined '1 second'. When the third touch-up is performed in the braille area to which the separator '6' is assigned, the generator 130 lists the separators '4' '5' '6' in the order of touch-up (the order in which the event braille areas are confirmed). , The bit data '111000 (2)' corresponding to the listed '456' may be generated.

In addition, the generator 130 determines the inflection separator in which the trend of the value changes compared to the neighboring separators listed above among the listed separators, and generates bit data of different information based on the inflection separator. can do.

For example, in addition to the previous example, if the fourth touch-up and the fifth touch-up are made within a predetermined '1 second', and the braille area allocated to the separators '1' and '2' is further confirmed as an event braille area, the generation unit In step 130, among the listed separators '4', '5', '6', '1', and '2', the '1' whose value decreases compared to the neighboring separators listed above may be determined as an inflection separator.

After determining the inflection separator, the generation unit 130 groups the separators listed before the inflection separator into a first separator group, generates first bit data corresponding to the first separator group, and the inflection separator and the The delimiters listed after the inflection delimiter may be grouped into a second delimiter group, and second bit data corresponding to the second delimiter group may be generated.

In the above example, the generation unit 130 groups the delimiter '4' '5' '6' listed before the inflection delimiter '1' into a first delimiter group, and the first bit data corresponding to the first delimiter group. '111000 (2)' is generated, and also the indentation delimiter '1' and the delimiter '2' listed after the inflection delimiter are grouped into a second delimiter group, and the second bit data '000011 corresponding to the second delimiter group (2) '.

If the inflection separator is not determined, the generator 130 may generate the second bit data by grouping all of the listed separators into the second separator group.

For example, if the listed separator is '4', '5', and '6' whose value continues to increase, the generation unit 130 cannot determine an inflection separator whose value decreases compared to the neighboring separator, and accordingly, the listed separator The second bit data '111000 (2)' may be generated by grouping all of '4' '5' '6' into a second separator group. At this time, the generation unit 130 may generate the first bit data so as to have zero size (eg, 000000 (2) ').

The input unit 140 may input text identified by the bit data on the screen. That is, the input unit 140 may serve to select and output the text specified by the bit data generated in association with the event braille area.

In particular, in a condition in which the first bit data and the second bit data according to the inflection separator are generated, the input unit 140 adds the first bit data and the second bit data and combines them into bit data, thereby combining the bit data. One text corresponding to can be identified.

For example, in a condition in which the first bit data '111000 (2)' and the second bit data '000001 (2)' are generated, the input unit 140 sums '111000 (2)' and '000001 (2)' By combining 12 bits of '111000 (2) 000001 (2)', one text (capital letter A) corresponding to the combined bit data can be identified.

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.

To execute the command, first, the processing unit 110 divides another part of the screen into m command areas (where m is a natural number equal to or greater than 1) according to a direction, and assigns a commander to each of the m command areas can do. That is, the processing unit 110 may designate a border portion in the vertical direction from the center portion of the screen where the braille region is divided as a command region, and assign a commander capable of distinguishing each command region.

For example, the processing unit 110 may divide a border portion in the upper direction of the screen into one command area, and allocate a commander for a command for initializing input braille or text.

The execution unit 150 may execute a command associated with the text using a commander assigned to the entered command area after a touch down on the screen and a touch enters the command area through a move.

For example, when a user's touch enters a command area divided in the upper direction of the screen through a touchdown-movie (drag) on the screen, the execution unit 150 is based on the commander 'initialization' assigned to the command area. , You can execute the command by removing the text 'A' previously entered.

In addition, the security keypad 100 of the present invention, according to an embodiment, may be configured to further include a vibration unit 160 for generating vibration.

That is, the vibrator 160 may arrange the vibrating means as a boundary line surrounding the braille area, and activate the vibrating means for the event braille area in which the touch-up is performed to generate vibration.

For example, in a braille area to which the separator '6' is assigned, when a touch-up is made and the corresponding braille area is identified as an event braille area, the vibrator 160 vibrates means arranged along the boundary of the identified event braille area. By activating, the user can recognize the braille input related to the separator '6'.

In addition, the vibration unit 160 supports the visually impaired user to recognize the touched-up braille region as a sense of vibration by arranging vibration means having different vibration patterns for each braille region.

According to the present invention, due to the touch-up in a specific braille area in which the screen is divided, the user can recognize the braille desired to be input, so that the user can smoothly enter the braille without much education.

Further, according to the present invention, by interlocking with the touchdown on the screen for braille input, the entire screen is switched to black to cover the braille area, so that the braille input by the user is not exposed to the outside.

In addition, according to the present invention, considering the size of the separator allocated to the braille area where the touch-up is performed, a combination of various braille arrays and bit data can be configured to enable the user to accurately input desired text.

In addition, according to the present invention, various commands (initialization, 1-bit erasing, next braille input, transmission through this command area) are allocated by assigning a command area for command input to an area other than the braille area for braille input on the screen. Etc.).

In addition, according to the present invention, through the mapping between the braille information used by the visually impaired and the screen space and feedback of vibration effects, the user (visually impaired) can more easily recognize the input location of the information, and touch up and move , By using the touch drag event, it is possible to increase the input efficiency of the user (visually impaired) by providing initialization, 1-bit erasing, next braille input, and transmission functions in the information input.

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

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

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

The separator can be defined as six from the number '1' to the number '6', and as shown in FIG. 2, the security keypad is assigned to each of six divided braille areas, and a unique identifier can be assigned. have.

At this time, each of the divided six braille areas is separated by a boundary line, and the security keypad is arranged with a vibrating means along the boundary line, so that vibration can be generated by interlocking with the user's touch-up. The occurrence of such vibrations leads to an effect of allowing the user to easily input braille in the input method according to the present invention without additional training by allowing the user to recognize the generated vibrations as projections.

In another embodiment, the security keypad of the present invention, by arranging a vibration means having a different vibration pattern for each braille area, allows a visually impaired user to accurately recognize the location of the braille area being touched up by a sense of vibration. Apply.

For example, vibration means of a vibration pattern generated by alternating 'long vibration-short vibration' is arranged in a braille region to which the separator '1' is assigned, and 'short vibration-long vibration' to a braille region to which the separator '2' is assigned. It is possible to arrange vibration means of the vibration pattern occurring alternately, and vibration means of a vibration pattern generated by alternating 'long vibration-short vibration-long vibration' can be arranged in a braille region to which the separator '3' is assigned. In addition, in the braille area to which the separator '4' is assigned, vibration means of a vibration pattern generated by alternating 'strong vibration to weak vibration' is arranged, and 'short vibration to long vibration' is assigned to the braille area to which the separator '5' is assigned. Vibration means of the vibration pattern occurring alternately are arranged, and vibration means of the vibration pattern generated by alternating 'strong vibration-weak vibration-strong vibration' can be arranged in a braille region to which the separator '6' is assigned.

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 secure keypad of the present invention can identify a braille area where touch-up is finally performed through a move after a user touches down on a screen as an event braille area. Thereafter, the secure keypad may generate bit data using a delimiter allocated for the event braille area.

Particularly, if the event braille area is confirmed in multiple successively with a predetermined time interval, the security keypad lists the plurality of event braille areas in the order in which they are identified, and generates 6-bit bit data corresponding to the listed delimiters. can do.

At this time, the secure keypad may determine inflection delimiters whose values decrease compared to neighboring delimiters listed above among the delimiters listed, and generate bit data of different information based on the inflection delimiters.

In FIG. 3, when touch-up is performed in a braille area to which the separators '4', '5', '6', and '1' are assigned, and the four braille areas are identified as event braille areas, the value of the separator changes in trend ( An example of determining '1' as an inflection separator (from increase to decrease).

As shown in FIG. 3, the security keypad bundles the separators '4', '5', and '6' into a first separator group, and the first bit data '111000 (2)' corresponding to the first separator group In addition, the inflection separator '1' may be grouped into a second separator group, and second bit data '000001 (2)' corresponding to the second separator group may be generated.

Thereafter, the secure keypad sums the first bit data '111000 (2)' and the second bit data '000001 (2)' and combines them into bit data, so that one text corresponding to the combined bit data (eg , Capital letter A).

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

The security keypad of the present invention can perform various commands through this command area by allocating 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 assigning commanders for commands to 'initialize' the border portion of the screen upward direction, and the user moves down to the upper end after moving down (drag). Through, when entering the command area, a command for initializing input braille or text may be performed.

In addition, the security keypad divides the border portion in the left direction of the screen into a command area for allocating a commander for a command for '1 bit erase', and after a user touches down, through a move (drag) to the left end, the above When entering the command area, a command to delete a braille / text entered immediately before among the entered braille or text can be executed.

In addition, the security keypad divides the border portion of the right side of the screen into a command area for assigning a commander for a command for 'enter next braille', and after a user touches down, through a move (drag) to the right end, the When entering the command area, it is possible to perform a command (for example, moving a cursor, etc.) that enables input of braille / text to be input next.

In addition, the security keypad divides the border portion of the screen downward direction into a command area for allocating a commander for a command for 'send', and after the user touches down, through the move (drag) to the top end, the command area If you enter, you can perform a command to send all of the braille or text entered so far to a desired destination (eg, a receiving address on an e-mail).

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.

In a condition in which the first bit data and the second bit data according to the inflection separator are generated, the security keypad adds 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 interlocks with the touchdown on the screen for braille input, so that the entire screen is turned black to cover the braille area, so that the braille input by the user is not exposed to the outside.

As illustrated in FIG. 5, in response to touch-up on a screen that has been changed to black, under the conditions in which the first bit data '111000 (2)' and the second bit data '000001 (2)' are generated, security The keypad combines '111000 (2)' and '000001 (2)' to combine 12 bits of '111000 (2) 000001 (2)', and one text corresponding to the combined bit data (uppercase A) Can be identified.

In addition, according to the touch-up on the screen switched to black, there is no inflection delimiter, the first bit data '000000 (2)', and the second bit data '000011 (regarding the listed delimiter' 1 '' 2 ' 2) ', the secure keypad adds' 000000 (2)' and '000011 (2)' to combine 12 bits of '000000 (2) 000011 (2)', and this combined bit data One text (lowercase a) corresponding to can be identified.

In addition, according to the touch-up on the screen switched to black, there is no inflection delimiter, the first bit data is '000000 (2)', and the second regarding the delimiters '3', '5', and '6' listed. Under the condition that the bit data '110100 (2)' is generated, the secure keypad combines '000000 (2)' and '110100 (2)' and combines 12 bits of '000000 (2) 110100 (2)', One text (number 0) corresponding to the combined bit data can be identified.

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

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

The input method on the security keypad for the visually impaired according to this embodiment may be performed by the above-described security keypad.

The secure keypad 100 divides a part of the screen into n braille regions (610). Step 610 may be a process of dividing a central portion occupying most of the screen into a plurality of braille areas, which is mainly performed by finger touch on the screen. Here, the number n of divided braille regions may be set to a natural number of at least 6 in consideration of 6-point braille (BANA code).

After dividing the braille area, the secure keypad 100 assigns a separator to each of the n braille areas (620). Step 620 maps the delimiters that separate each braille area independently for each braille area, for example, as a touch-up is performed in a specific braille area, a braille that a user who may be visually impaired enters, and a specific braille It may be a process that enables recognition based on a separator mapped to a region.

In the assignment of the separator, the security keypad 100 may sequentially assign the separators having different values to each of the n braille areas. For example, the security keypad 100 may be used as a separator for preparing six numbers from 1 to 6 and allocating them for each of the six braille areas under the condition that the braille area is divided into six.

In addition, in step 620, the security keypad 100 may switch the entire screen to black in association with the touchdown, so that the event braille area in which the touchup is performed is not exposed. That is, as the user touches the screen for braille input, the security keypad 100 obscures the arrangement of the braille area in black so that an external person shoulders the act of entering the braille while the user touches the screen. Even if you look over it, you may not be able to accurately recognize the braille area where the touchup is actually made.

In addition, the security keypad 100 may check an event braille region in which the touch-up and move-up touch-up on the screen are performed among the n braille regions (630). Step 630 may be a process of reading a mode in which a user touches on a screen and confirming a braille area in which touch-up is actually performed as an event braille area where an event has occurred.

When confirming the event braille area, if the security keypad 100 is different from the braille area where the touchdown is made and the braille area where the touchup is made, the touchup is actually performed after confirming the move (drag) after the user touches down. You can check the event braille area. On the other hand, if the braille area where the touchdown is made and the braille area where the touchup is made are the same, the confirmation unit 120 may check the corresponding braille area as an event braille area without confirming the move (drag) after the user touches down.

The secure keypad 100 may generate bit data using a separator assigned to the event braille area (640). Step 640 may be a process of generating the bit data by converting a separator allocated for a braille area in which a user touches up to 6-bit data of a binary number.

For example, when the separator assigned to the event braille area where the touch-up is made is the number '1', the secure keypad 100 generates binary data for the number '1' of 6-bit data '000001 (2)' as bit data. Can be.

In step 640, when a plurality of touch-ups are continuously performed at a predetermined time interval, and a plurality of event braille areas are identified, the security keypad 100 displays the separators assigned to each of the plurality of event braille areas, The event braille area can be arranged in the order in which they are identified, and bit data corresponding to the listed delimiters can be generated.

As the user checks several event braille areas consecutively at a short interval of touchdown-movie (drag) -touchup, the security keypad 100 identifies the identifiers assigned to each of the identified plurality of event braille areas, in the order of confirmation. As can be recognized, independent bit data can be generated.

Here, the predetermined time interval may be set as a time sufficient for a user to input required braille in inputting one text.

For example, the first touch-up is made in a braille area to which the separator '4' is assigned, within a defined '1 second', and the second touch-up is made in a braille area to which the separator '5' is assigned, and also within a defined '1 second'. , When the third touch-up is performed in the braille area to which the separator '6' is assigned, the security keypad 100 lists the separator '4' '5' '6' in the order of touch-up (the order in which the event braille area is confirmed). , The bit data '111000 (2)' corresponding to the listed '456' may be generated.

In addition, in step 640, the security keypad 100 determines the inflection separator in which the trend of the value changes compared to the neighboring separators listed above among the above-described separators, so that different information is based on the inflection separators. Can generate bit data.

For example, in addition to the previous example, if a fourth touch-up and a fifth touch-up are made within a predetermined '1 second', and the braille area allocated to the separators '1' and '2' is further confirmed as an event braille area, the security keypad In (100), among the listed separators '4' '5' '6' '1' '2', the '1' whose value decreases compared to the neighboring separators listed above may be determined as an inflection separator.

After determining the inflection separator, the security keypad 100 groups the separators listed before the inflection separator into a first separator group, generates first bit data corresponding to the first separator group, and the inflection separator and the The delimiters listed after the inflection delimiter may be grouped into a second delimiter group, and second bit data corresponding to the second delimiter group may be generated.

In the above example, the security keypad 100 groups the delimiter '4' '5' '6' listed in front of the inflection delimiter '1' into a first delimiter group, and the first bit data corresponding to the first delimiter group. '111000 (2)' is generated, and also the indentation delimiter '1' and the delimiter '2' listed after the inflection delimiter are grouped into a second delimiter group, and the second bit data '000011 corresponding to the second delimiter group (2) '.

If the inflection separator is not determined, the security keypad 100 may generate the second bit data by grouping all of the listed separators into the second separator group.

For example, if the listed separator is '4', '5', and '6' whose value continues to increase, the secure keypad 100 cannot determine an inflection separator whose value decreases compared to the neighboring separator, and accordingly, the listed separator The second bit data '111000 (2)' may be generated by grouping all of '4' '5' '6' into a second separator group. At this time, the secure keypad 100 may generate the first bit data or have a size of 0 (eg, 000000 (2) ').

The secure keypad 100 may input text identified by the bit data into the screen (650). Step 650 may be a process of selecting and outputting the text specified by the bit data generated in association with the event braille area.

In particular, in a condition in which the first bit data and the second bit data according to the inflection separator are generated, the secure keypad 100 combines 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, in a condition in which the first bit data '111000 (2)' and the second bit data '000001 (2)' are generated, the security keypad 100 displays '111000 (2)' and '000001 (2)'. By adding up, 12 bits of '111000 (2) 000001 (2)' are combined, and one text (uppercase A) corresponding to the combined bit data can be identified.

According to an embodiment, the secure keypad 100 of the present invention may execute a command 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 (where m is a natural number greater than or equal to 1) according to directions, and assigns commanders to each of the m command areas can do. That is, the security keypad 100 may designate a border portion in the vertical direction from the center portion of the screen where the braille region is divided as a command region, and assign a commander capable of distinguishing each command region.

For example, the security keypad 100 may divide a border portion in the upper direction of the screen into one command area, and assign a commander for a command for initializing input braille or text.

The security keypad 100 may execute a command associated with the text by using a commander assigned to the command area when a touch enters the command area through a move after touch down on the screen.

For example, when a user's touch enters a command area divided upward in the screen through a touchdown-movie (drag) on the screen, the security keypad 100 is based on the commander 'initialization' assigned to the command area. , You can execute the command by removing the text 'A' previously entered.

In addition, the security keypad 100 of the present invention may generate vibration, according to an embodiment.

That is, the security keypad 100 may arrange the vibrating means as a boundary line surrounding the braille area, and activate the vibration means for the event braille area in which the touch-up is performed, thereby generating vibration.

For example, in the braille area to which the separator '6' is assigned, when a touch-up is made and the corresponding braille area is identified as an event braille area, the security keypad 100 vibrates means arranged along the boundary line of the identified event braille area. By activating, the user can recognize the braille input related to the separator '6'.

In addition, the security keypad 100 supports the visually impaired user to recognize the braille area touched up by sense of vibration by arranging vibration means having different vibration patterns for each braille area.

According to the present invention, due to the touch-up in a specific braille area in which the screen is divided, the user can recognize the braille desired to be input, so that the user can smoothly enter the braille without much education.

Further, according to the present invention, by interlocking with the touchdown on the screen for braille input, the entire screen is switched to black to cover the braille area, so that the braille input by the user is not exposed to the outside.

In addition, according to the present invention, considering the size of the separator allocated to the braille area where the touch-up is performed, a combination of various braille arrays and bit data can be configured to enable the user to accurately input desired text.

In addition, according to the present invention, various commands (initialization, 1-bit erasing, next braille input, transmission through this command area) are allocated by assigning a command area for command input to an area other than the braille area for braille input on the screen. Etc.).

In addition, according to the present invention, through the mapping between the braille information used by the visually impaired and the screen space and feedback of vibration effects, the user (visually impaired) can more easily recognize the input location of the information, and touch up and move , By using the touch drag event, it is possible to increase the input efficiency of the user (visually impaired) by providing initialization, 1-bit erasing, next braille input, and transmission functions in the information input.

Further, 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 program instructions 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, or the like alone or in combination. The program instructions recorded in the medium may be specially designed and configured for the embodiments or may be known and usable by those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, and magnetic media such as floptical disks. -Hardware devices specifically configured to store and execute program instructions such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, etc., as well as machine language codes produced by a compiler. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described by a limited embodiment and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques are performed in a different order than the described method, and / or the components of the described system, structure, device, circuit, etc. are combined or combined in a different form from the described method, or other components Alternatively, even if replaced or substituted by equivalents, appropriate results can be achieved.

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

100: security keypad 110: processing unit
120: confirmation unit 130: generation unit
140: input unit 150: execution unit
160: vibrating unit

Claims (16)

Dividing a part of the screen into n braille regions (where n is a natural number greater than or equal to 6), and assigning separators having different values to each of the n braille regions;
Checking an event braille area of the n braille areas, where touch up occurs after touch down and move on the screen;
Determining an inflection delimiter in which the value decreases in comparison with neighboring delimiters listed above among the delimiters listed in the order in which the event braille region is identified;
Bundling the delimiters listed above into the first delimiter group, and generating first bit data corresponding to the first delimiter group;
Bundling the inflection separator and the separators listed after the inflection separator into a second separator group, and generating second bit data corresponding to the second separator group; And
Inputting text identified by the first bit data and the second bit data to the screen;
Including,
If the above value does not determine the decreasing inflection separator,
Generating the first bit data,
Generating '000000 (2)' as the first bit data according to a touch-up on a screen switched to black in association with the touchdown
Security keypad input method for the visually impaired, including. According to claim 1,
When multiple touch-ups are made continuously at a predetermined time interval, and multiple event braille areas are identified,
Listing the identifiers assigned to each of the plurality of event braille areas in the order in which the event braille areas are identified; And
Generating bit data corresponding to the separators listed above
Security keypad input method for the visually impaired further comprising. delete According to claim 1,
If the inflection separator is not determined,
Generating the second bit data by grouping all of the listed separators into the second separator group.
Security keypad input method for the visually impaired further comprising. According to claim 1,
Entering the text on the screen,
Combining 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
Security keypad input method for the visually impaired, including. According to claim 1,
Dividing another part of the screen into m command regions (where m is a natural number equal to or greater than 1) according to a direction, and assigning a commander to each of the m command regions; And
After touch down on the screen, if a touch enters the command area through a move,
Executing a command associated with the text using the commander assigned to the entered command area
Security keypad input method for the visually impaired further comprising. According to claim 1,
Interlocking with the touchdown to switch the entire screen to black, so that the event braille area where the touchup is made is not exposed
Security keypad input method for the visually impaired further comprising. According to claim 1,
Disposing vibrating means as a boundary line surrounding the braille region; And
Generating vibration by activating the vibration means for an event braille region in which the touch-up is performed
Security keypad input method for the visually impaired further comprising. A processing unit for dividing a part of the screen into n braille regions (where n is a natural number greater than or equal to 6), and assigning separators having different values to each of the n braille regions;
A confirmation unit for checking an event braille area in which the touch-up and move-up touch-up on the screen are performed among the n braille areas;
Among the separators arranged in the order in which the event braille area is identified, the inflection separator in which the value decreases compared to the neighboring separators listed above is determined, and the separators listed before the inflection separator are grouped into a first separator group, and the Generating first bit data corresponding to the first delimiter group, grouping the inflection delimiter and delimiters listed after the inflection delimiter into a second delimiter group, and generating second bit data corresponding to the second delimiter group Generation unit; And
An input unit for inputting text identified by the first bit data and the second bit data to the screen
Including,
If the above value does not determine the decreasing inflection separator,
The generation unit,
In response to the touch-up on the screen switched to black in association with the touchdown, generating '000000 (2)' as the first bit data
Security keypad for the visually impaired. The method of claim 9,
When multiple touch-ups are made continuously at a predetermined time interval, and multiple event braille areas are identified,
The generation unit,
The identifiers assigned to each of the plurality of event braille areas are listed in the order in which the event braille areas are identified,
To generate bit data corresponding to the delimiters listed above
Security keypad. delete The method of claim 9,
If the inflection separator is not determined,
The generation unit,
Grouping all of the listed separators into the second separator group to generate the second bit data
Security keypad. The method of claim 9,
The input unit,
Summing the first bit data and the second bit data and combining them into the bit data,
Identifying one text corresponding to the combined bit data
Security keypad. The method of claim 9,
The processing unit,
The other part of the screen is divided into m command regions (where m is a natural number of 1 or more) according to a direction, and a commander is assigned to each of the m command regions,
The security keypad,
When a touch enters the command area through a move after touchdown on the screen, an execution unit executing a command associated with the text using a commander assigned to the entered command area
Security keypad further comprising. The method of claim 9,
The processing unit,
Interlocking with the touchdown, the entire screen is switched to black, so that the event braille area where the touchup is made is not exposed.
Security keypad. The method of claim 9,
A vibrating unit that arranges vibrating means as a boundary line surrounding the braille area, and activates the vibrating means for the touch-up event braille area to generate vibration.
Security keypad further comprising.

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