KR20090002723A - Touchscreen input recognition device based on section division, and method for the same - Google Patents

Abstract

A touch screen input recognition apparatus and a method thereof based on the input domain of the touch screen divided into a plurality of areas are provided to identify the input form of the touch screen by using a simple configuration and calculation. The control command is matched and registered by each domain sequence(S10). The touch signal is inputted through a screen input domain(S20). The input domain sequence is generated in case that the touch signal is in a plurality of division domain(S30). The mapping table is checked whether the previously registered domain sequence which is identical with the input domain sequence is stored(S40). The control command matched with the previously registered domain sequence is performed (S70).

Description

Touchscreen input recognition device based on section division, and method for the same

1 is a block diagram showing the overall configuration of a division-based touch screen input recognition device according to an embodiment of the present invention;

2 is a flowchart illustrating an overall operation of a method of recognizing a touch screen input based on a divided area according to an exemplary embodiment of the present invention.

3 is a diagram illustrating a horizontal / vertical input region sequence among four divided regions;

4 is a diagram illustrating a diagonal input region sequence consisting of upper left and lower right regions;

5 is a diagram showing a diagonal input area sequence consisting of upper right and lower left areas;

6 is a diagram illustrating an input region sequence configured in clockwise / counterclockwise direction over three regions;

7 is a diagram illustrating an input region sequence configured in clockwise / counterclockwise direction over four regions;

8 is a flowchart in which a process is added when a touch screen input represents a specific pattern in one partition area;

9 is a view showing a first embodiment of an input pattern composed of a specific pattern in a divided region;

FIG. 10 is a diagram illustrating a second embodiment of an input pattern composed of a specific pattern in a divided region.

The present invention relates to an apparatus and a method for recognizing a touch screen input based on a divided area, and in particular, based on a touch screen input area divided into a plurality of areas, a touch signal input by a user with a touched area as a sequential combination of the divided areas. The present invention relates to a touch screen input recognition device and method for converting a region into a configured region sequence and performing a control command matched to a pre-registered region sequence.

Conventional control command input technology using a touch screen is configured to perform a corresponding control command by pressing a specific icon or pressing a specific button using the touch screen. As described above, the touch screen technology in the form of an icon or a specific button is implemented by mapping each icon and a control command in a 1: 1 manner, so that the number of icons increases as the functions of the product increase. In addition, there is a problem in that a touch screen cannot be used to replace many functions because the function of a specific action is not subdivided.

In response to this problem, according to a technology filed January 25, 2005 (Application No. 10-2005-0006797) in Korea, when a predetermined pattern is input through a touch screen, the pattern is input to the device. Disclosed are a method for controlling a multimedia device based on touch screen pattern recognition and a device for controlling a corresponding function by recognizing a control command for a function.

According to the disclosed invention, the form of the input is determined by pattern recognition of the touch screen input. At this time, a variety of pattern recognition algorithms can be used to recognize the pattern of the input, the technology has been developed to such a degree that the pattern recognition algorithm can be applied to some extent to determine a relatively sophisticated type of input, such as character recognition.

However, such a method of recognizing a pattern is not easy to implement, and thus there is a problem that fast processing is not easy and occupies a large storage area.

SUMMARY OF THE INVENTION An object of the present invention is to provide a touch screen input recognition device and method capable of giving a control command to a device with a touch screen by identifying the shape and direction of the touch screen input with a relatively simple configuration and operation.

According to a preferred embodiment of the present invention, a segmentation-based touch screen input recognition method includes: (a) dividing a touch screen input region into a plurality of regions and matching each region sequence and region sequence composed of a sequential combination of the divided regions. Registering a control command; (b) receiving a touch signal through a touch screen input area; (c) checking whether a path of the touch signal spans the plurality of divided regions; (d) generating a input area sequence by recognizing a start area, a middle area, and an end area where the touch signal has passed on the divided area when the touch signal spans the plurality of divided areas; (e) checking whether a pre-registered area sequence matching the input area sequence is stored; And (f) if the pre-registered area sequence exists, performing a control command matched to the pre-registered area sequence.

According to an aspect of the present invention, there is provided a region-based touch screen input recognizing apparatus including: a mapping table storage unit configured to register and store a region sequence consisting of a sequential combination of a plurality of regions and a matched control command for each region sequence; A touch screen input unit configured to receive a touch signal contacted through the touch screen input area; When the touch screen input area is divided into a plurality of areas, and the path of the touch signal spans the plurality of divided areas, the input area sequence is generated by recognizing the start area, the middle area, and the end area that the touch signal has passed on the divided area. An area sequence recognition unit; An area sequence search unit for checking whether a pre-registered area sequence matching the input area sequence is registered in the mapping table storage unit; And a control command processor processing a control command matched with the area sequence according to whether the area sequence is registered.

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

FIG. 1 is a block diagram illustrating an overall configuration of a split area based touch screen input recognition device according to an exemplary embodiment of the present invention.

As shown, the divided region-based touch screen input recognition device 1 is largely divided into a touch screen input unit 10, an area sequence recognition unit 20, a mapping table storage unit 30, an area sequence search unit 40, The control command processing unit 50 is configured.

The touch screen input unit 10 receives a touch signal contacted through the touch screen input area. Touching the touch screen input area with a finger or a stylus pen detects the touched position and transforms it into an electrical signal.

The area sequence recognizer 20 recognizes the touch signal by dividing the touch screen input area into a plurality of areas. That is, instead of the pixel unit recognition, the position of the touch signal is recognized in the preset divided region unit. In this case, since the user inputs a specific direction and shape in consideration of the entire screen, the user recognizes the start area and the end area of the touch signal in order to detect the direction of the touch signal. In addition, in order to detect more various shapes, the middle region of the touch signal may be recognized to recognize not only a unidirectional shape but also a curved shape. After recognizing the start region, the middle region, and the end region, an input region sequence in which each region is sequentially combined is generated.

However, if the touch signal does not span a plurality of divided regions but is formed within one region, it is not necessary to generate an input region sequence and recognizes the pattern of the touch signal through a separate process which will be described later.

The mapping table storage unit 30 registers and stores an area sequence composed of sequential combinations of respective areas when assuming that the touch screen input area is divided into a plurality of areas. In addition, a control command is matched and stored for each area sequence, and the area sequence and the control command according thereto may be stored in the form of a mapping table.

In this case, the area sequence registered in the mapping table storage unit 30 is a plurality of areas belonging to four divided areas when the touch screen input area is divided to include four areas of upper left, upper right, lower right and lower left. It can be composed of a sequential combination of.

In addition, the region sequence may be a horizontal / vertical direction in which the start region and the end region are composed of two adjacent regions among the four divided regions, or may be in a diagonal direction composed of two non-adjacent regions. In addition, the region sequence may further include an intermediate region, and may include three regions among four divided regions, and the four regions may be combined in a clockwise or counterclockwise direction.

For example, in the case of the region sequence consisting of the upper left and the upper right, it indicates that a touch signal is input from left to right as an input made in the upper region of the touch screen input area. In addition, the combination of the lower right and the upper left indicates that a touch signal is input in the direction of the upper left starting from the lower right. In addition, if the combination of the upper left-right upper-right is a touch signal is formed over three areas in the clockwise direction, the combination of the upper left-left-right-lower right indicates that the touch signal is input in a counterclockwise direction.

In addition, the mapping table storage unit 30 may also register and store information regarding a case in which a touch signal input made in a specific region indicates a specific pattern. That is, when no touch signal is input over the area to be divided, no area sequence is generated and no area sequence can be compared.

Therefore, in this case, the pattern of the touch signal must be recognized by the pattern recognition algorithm with respect to the touch signal made only within a specific region. The mapping table storage unit 30 stores a specific area and one or more specific patterns according to the pattern matching in this case, and matches and registers a control command for each specific pattern.

The area sequence search unit 40 checks whether a pre-registered area sequence matching the input area sequence generated by the area sequence recognition unit 20 by recognizing the touch signal is registered and exists in the mapping table storage unit 30. do.

In addition, a pattern algorithm recognizer may be further added to check a case in which a touch signal input within a specific region indicates a specific pattern. The pattern algorithm recognition unit includes a pattern recognition algorithm, and when the touch sequence is recognized by the area sequence recognition unit 20 in one divided region, the pattern of the touch signal is recognized using a stored pattern recognition algorithm. . Then, it is checked whether the recognized pattern is stored in the mapping table storage unit 30 as a specific pattern.

The control command processor 50 searches the mapping table storage unit 30 to find a control command matched to the region sequence search unit 40 and the pattern algorithm recognition unit when there is a pre-registered region sequence or a specific pattern. Do this. For example, if the functions such as file playback, volume control, reversal, and recording are matched with the area sequence of each input touch signal, when the touch signal is input, the area sequence and pattern is recognized for each touch signal, and Performs a matched control command.

2 is a flowchart illustrating an overall operation of a method for recognizing a touch screen input based on a divided area according to an exemplary embodiment of the present invention.

As shown, first, the touch screen input area is divided into a plurality of areas. Then, an area sequence composed of a sequential combination of divided regions is registered and stored, and a control command is matched and registered for each area sequence (S10). In this case, the area sequence and the control command may be stored in the form of a mapping table.

Next, a touch signal is received through the touch screen input area (S20).

If the touch signal spans a plurality of divided areas and checks whether the touch signal spans a plurality of divided areas (SA1), the input area sequence is recognized by recognizing a start area, an intermediate area, and an end area passed by the touch signal on the divided area. To generate (S30). However, if it does not span a plurality of divided regions, it can be set to enable re-input of the user.

Then, it is checked whether the previously registered area sequence matching the input area sequence is stored by searching the previously created mapping table (S40).

As a result of the check, if a pre-registered area sequence exists (S50), a control command corresponding to the pre-registered area sequence is found (S60).

Finally, a control command matched to the previously registered area sequence is performed (S70).

3 is a diagram illustrating a horizontal / vertical input region sequence among four divided regions.

As illustrated, the touch screen input area is divided into four areas of ①, ②, ③, and ④ to recognize a user's touch signal. When the user generates a signal by touching the touch screen input area, the area is divided into the first recognized area, the area for recognition, and the last recognized area, and the area sequence is generated and compared with the registered area sequence. Done.

When the touch screen input area is divided into four areas, the area sequence in the horizontal / vertical direction may be composed of two adjacent areas, and eight cases may be considered as follows.

(1) Touch signal recognition from ① to ②

(2) Touch signal recognition from ② to ①

(3) Touch signal recognition from ① to ③

(4) Touch signal recognition from ③ to ① area

(5) Touch signal recognition from ③ to ④

(6) Touch signal recognition from ④ to ③

(7) Touch signal recognition from ② to ④

(8) Touch signal recognition from ④ to ②

4 is a diagram illustrating a diagonal input region sequence consisting of upper left and lower right regions.

As shown, the diagonal region sequence may consist of two non-adjacent regions, and there are two kinds of diagonal region sequences consisting of upper and lower regions in four divided regions.

(1) Touch signal recognition from ① to ④

(2) Recognizing touch signal from ④ to ①

5 is a diagram illustrating a diagonal input region sequence consisting of upper right and lower left regions.

As shown, the diagonal region sequence may consist of two non-adjacent regions, and there are two kinds of diagonal region sequences consisting of upper right and lower left regions in four divided regions.

(1) Touch signal recognition from ② to ③

(2) Touch signal recognition from ③ to ②

6 is a diagram illustrating an input region sequence configured in clockwise / counterclockwise direction over three regions.

As shown, the start region, the middle region, and the end region form an area sequence composed of three regions. In this case, the start area may be any one of ①, ②, ③, and ④, and the direction may be selected in any of clockwise or counterclockwise directions.

FIG. 7 is a diagram illustrating an input region sequence configured in a clockwise / counterclockwise direction over four regions.

As shown, the start region, the two middle regions, and the end region form an area sequence composed of four regions. In this case, as described above with reference to FIG. 6, the start region may be any one of ①, ②, ③, and ④, and the direction may be selected in any of clockwise or counterclockwise directions.

8 is a flowchart in which a process is added when a touch screen input represents a specific pattern in one partitioned area.

As shown in FIG. 2, operation processes S10 to S70 when a touch signal is input over a plurality of divided regions are the same as those shown in FIG. 2. As a difference, in an initial step S10, a specific region and one or more specific patterns of the divided regions are registered, and a control command is matched and registered for each specific pattern. In this case, the specific pattern may be an image pattern composed of more compact units such as pixels, or may be an area sequence formed by further dividing the inside of the divided area. Since the case of the area sequence has been mainly mentioned above, the case where the recognition is required by the pattern recognition algorithm will be mainly described.

When the touch signal input through the touch screen is not input over a plurality of divided regions but in one divided region (SA2), the user's touch signal is recognized by a pattern recognition algorithm (S80). However, when a touch signal is input over a plurality of divided areas (SA1), the same process as described above with reference to FIG. 2 is performed, and thus description thereof will be omitted.

At this time, the pattern recognition algorithm is prepared and stored in advance, and it is possible to determine in advance whether or not the similarity of the pattern to a certain extent is set as a reference for pattern matching by setting. Also, the viewpoint of determining the similarity of the patterns may be different depending on which pattern recognition algorithm is used.

Subsequently, it is searched whether the pattern recognized through the pattern recognition algorithm is stored (S90), and the touch signal input by the user is made in a specific area among the divided areas of the touch screen input area, and is registered in the specific area. It is checked whether there is any match with the pattern recognized by the pattern recognition algorithm among the specific patterns (S100).

As a result of the check, if there is a matching specific pattern, a matched control command is found for the specific pattern (S110), and the control command is performed (S70). However, if there is no specific pattern that matches, it can be set so that the user can input again.

9 is a diagram illustrating a first embodiment of an input pattern composed of a specific pattern in the divided region. FIG. 10 is a diagram illustrating a second embodiment of an input pattern composed of a specific pattern in the divided region.

As shown in FIG. 9, FIG. 9 illustrates a case in which a user inputs a horizontal touch signal on a ① region among four divided regions, and FIG. 10 illustrates a case where the user inputs a vertical touch signal on a ① region. It is shown. In this case, since a touch signal is generated inside a specific area of the divided area, the touch signal is recognized by the pattern, and the control command matched thereto is found and executed.

Although the present invention has been described in more detail with reference to the examples, the present invention is not necessarily limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

According to the present invention, there is no need to implement an icon corresponding to the control command one-to-one, and the device can be controlled only by the input form of the touch screen, thereby performing various functions without a separate UI.

In addition, since the input of the touch screen is recognized as a sequential combination of the divided regions, it is possible to recognize the direction and shape of the touch screen input with only a relatively simple operation without having to go through a complicated calculation process.

Claims (14)

(a) dividing the touch screen input area into a plurality of areas, and registering a region sequence composed of a sequential combination of the divided regions and a matched control command for each region sequence; (b) receiving a touch signal through the touch screen input area; (c) checking whether a path of the touch signal spans a plurality of divided regions; (d) generating an input area sequence by recognizing a start area, an intermediate area, and an end area where the touch signal has passed on the divided area when the touch signal spans a plurality of divided areas; (e) checking whether a pre-registered area sequence matching the input area sequence is stored; And (f) if a pre-registered region sequence exists, performing a control command matched to the pre-registered region sequence; Touch screen input recognition method comprising a. The method of claim 1, In step (a), Dividing the touch screen input area into four areas including upper left, upper right, lower right, and lower left; Registering an area sequence consisting of a sequential combination of a plurality of areas belonging to the four divided areas; And Matching and registering a control command for each area sequence; Touch screen input recognition method comprising a. The method of claim 2, The step (a) of the touch screen input recognition method further comprises the step of registering the region sequence in the horizontal / vertical direction consisting of two adjacent areas of the four divided areas, the start area and the end area. The method of claim 3, wherein The step (a) further comprises the step of registering a region sequence in a diagonal direction consisting of two areas in which the start area and the end area are not adjacent among the four divided areas. The method of claim 4, wherein Step (a) is composed of two regions in which the start region and the end region are not adjacent to each other, and the middle region is constituted by another region between the start region and the end region to three regions of the four divided regions. And registering the configured area sequence. The method of claim 5, wherein In step (a), two intermediate regions are disposed between the start region, the end region, and the start region and the end region. The touch screen input recognition method further comprises a step. The method according to any one of claims 1 to 6, The step (a) further comprises the step of registering a specific region of the divided region and one or more specific patterns according to it, matching and registering a control command for each specific pattern, If the touch signal is formed within one division area as a result of the checking in step (c), pattern recognition of the touch signal by a pattern recognition algorithm and checking an area in which the touch signal is input; Checking whether a pre-registered specific region matching the input region and the recognized pattern of the touch signal and a specific pattern according thereto are stored; And Performing a control command matched to the specific pattern when there is a predetermined specific region and a specific pattern corresponding thereto; Touch screen input recognition method further comprises. A mapping table storage unit which registers and stores a region sequence composed of a sequential combination of a plurality of regions and a matched control command for each region sequence; A touch screen input unit configured to receive a touch signal contacted through the touch screen input area; The touch screen input area is divided into a plurality of areas, and when the path of the touch signal spans the plurality of divided areas, the input area is recognized by recognizing a start area, an intermediate area, and an end area that the touch signal has passed on the divided area. An area sequence recognition unit generating a sequence; An area sequence search unit for checking whether a pre-registered area sequence matching the input area sequence is registered in the mapping table storage unit; And A control command processor configured to process a control command matched to the area sequence according to whether the area sequence is registered; Touch screen input recognition device configured to include. The method of claim 8, The mapping table storage unit stores an area sequence consisting of sequential combinations of a plurality of areas belonging to the four divided areas based on partitioning the touch screen input area to include four areas of upper left, upper right, lower right, and lower left. and, And the area sequence recognizer divides the touch screen input area to include the four areas to recognize a path of the touch signal. The method of claim 9, And the mapping table storage unit stores an area sequence in a horizontal / vertical direction in which a start area and an end area are formed of two adjacent areas among the four divided areas. The method of claim 10, And the mapping table storage unit stores a region sequence in a diagonal direction in which a start region and an end region are composed of two non-adjacent regions of the four divided regions. The method of claim 11, The mapping table storage unit includes two regions in which a start region and an end region are not adjacent to each other, and an intermediate region consists of another region between the start region and the end region, and includes three regions of the four partitioned regions. Touch screen input recognition device, characterized in that for storing the area sequence. The method of claim 12, The mapping table storage unit is a middle region disposed between the start region, the end region, and the start region and the end region, and stores a sequence of four regions consisting of a sequential combination of clockwise or counterclockwise directions. Touch screen input recognition device characterized in that. The method according to any one of claims 8 to 13, The mapping table storage unit stores a specific area of the partitioned area and one or more specific patterns according to the partitioned area, stores a matched control command for each specific pattern, When the touch sequence is recognized by the area sequence recognition unit as being within one partitioned area, the pattern of the touch signal is recognized through a pattern recognition algorithm, and the recognized pattern is stored as a specific pattern in the mapping table storage unit. The touch screen input recognition device further comprises a pattern algorithm recognition unit for checking whether or not.

Images