JP2009003662A - Electronic board system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic board system which can quickly switch executing functions with a small number of operations when executing software functions currently executed on an electronic board and can easily input a numeric value when executing the function which is necessary to input the numeric value when executing the function. <P>SOLUTION: An electronic board system display control means has a means for executing a function stored beforehand in a registration function storage part according to a size of an objective and the number of input locations detected in starting input. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic board system using an information input device that detects a predetermined object indicating a two-dimensional information input area and outputs it as input information.

Conventionally, an operation screen of an object such as a character or an image generated by a screen generation device composed of a personal computer is input to the display screen projection device, and the operation screen is input by the display screen projection device with coordinates by a finger or a dedicated electronic pen. There is known an electronic board system that projects and displays an image on an electronic board that can perform image processing, draws a character object on the displayed operation screen, and operates an image object.
The electronic board coordinate detection method can detect not only one point but also the coordinates of two or more points, detecting the number of input points and the size of the object at the input point (For example, Patent Document 1).
This electronic board system is mainly used in meetings and classes. By displaying electronic materials on a computer and projecting images on an electronic board, the content of the materials can be shared by multiple people. Various operations such as writing using the image, enlargement / reduction of the display image, movement and switching of the display image can be performed intuitively.

JP 2000-132339 A

By the way, when performing writing or object operation with a finger or an electronic pen using the electronic board system in a meeting or the like, various line colors and thicknesses are switched, or object operation functions are switched.
Therefore, a menu or toolbar for changing the color and thickness of lines and executing functions in the operation screen of the electronic board is provided, and the color and thickness of input lines can be changed with these menus and toolbars. Switch the operation function to the object and execute it.

However, if function switching is executed from the menu or toolbar each time, there is a problem that the amount of operation increases and efficient operation cannot be performed.
In addition, in functions that require numerical input when executing software functions such as inputting the enlargement ratio when executing functions in the process of enlarging or reducing display contents, it is necessary to set in advance the numerical values to be input separately from function execution is there. For this reason, there exists a problem that the operation amount for function execution will increase.
Some electronic pens have auxiliary switches in addition to the pen tip switch, and there are methods to perform other functions in combination with auxiliary switches. However, it is difficult to operate for users unfamiliar with electronic pens. You will not be able to perform certain operations.

An object of the present invention is to provide an electronic board system capable of changing and inputting a line thickness, color, and the like without performing complicated operations when performing line input on the electronic board.
It is another object of the present invention to provide an electronic board system that can execute an operation function for a displayed object and an operation function for a display image without performing a complicated operation.

In order to achieve the above object, an electronic board system according to the present invention detects a predetermined object indicating a two-dimensional information input area, and detects information as the input information by detecting the size of the predetermined object and the number of specified locations. In an electronic board system equipped with a device,
The information input device includes display control means for executing a function stored in advance in a registration function storage unit in accordance with the number of points indicated by a predetermined object detected by the information input device.

Further, in an electronic board system provided with an information input device that detects a predetermined object that indicates a two-dimensional information input area and detects the size of the predetermined object and the number of specified locations as input information,
In accordance with the size of the predetermined object detected by the information input device, there is provided display control means for executing a function stored in advance in a registration function storage unit.

Further, in an electronic board system provided with an information input device that detects a predetermined object that indicates a two-dimensional information input area and detects the size of the predetermined object and the number of specified locations as input information,
The information input device includes display control means for executing a function stored in advance in a registration function storage unit according to the size of the predetermined object detected by the information input device and the number of designated locations.

  In addition, when the display control unit executes a function that requires value input, the difference value of the distance between the coordinate information history of the designated location by the predetermined object and the coordinate of the current input coordinate is input to the execution function. It is used as a feature.

According to the present invention, the function can be quickly switched by switching the execution function by using the input size information and the number-of-input-points information detected by the information input device, eliminating complicated operations and ease of use. A good electronic board system can be provided.
Further, by using the distance between the input coordinates as an input value when inputting a plurality of places, it is possible to quickly set an input value in a function that requires a numerical input when executing the function.

Hereinafter, an embodiment of an electronic board system according to the present invention will be described with reference to the drawings.
FIG. 1 is a system configuration diagram showing an embodiment of an electronic board system according to the present invention.
The electronic board system of this embodiment includes an electronic board 101, an input pen 102, a display screen projection display device 103, a control computer 104, a keyboard 105 attached to the control computer 104, and a display device 106.
The control computer 104 has the same function as a general-purpose personal computer, and a display content control program 1041 for processing character objects and image objects is stored in the internal memory.
The electronic board 101 is provided with an input area 107 that can simultaneously detect a plurality of position coordinates and input object sizes at the time of an input operation with the input pen 102 or the user's finger.

FIG. 2 is a schematic diagram showing an example of a coordinate detection apparatus that can detect input coordinates at a plurality of positions and the size of an input object at the input coordinates with respect to the coordinate detection of the input area 107.
The input area 107 emits a rectangular coordinate input surface 201 for inputting coordinates with the input pen 102 or a finger, etc., and irradiation light spreading in a fan shape along the coordinate input surface 201, and travels along the coordinate input surface 201. An optical unit 202 that receives reflected light (the optical unit on the left side is 202L and the optical unit on the right side is 202R), and the irradiation light emitted from the optical unit 202 arranged on the outer edge of the coordinate input unit 201 is A reflection unit 203 that recursively reflects in the incident direction, and a detection information processing device 204 that converts information received by the left and right optical units 202 from the reflection unit 203 into coordinate information and input object size information.
The detection information processing apparatus 204 has a built-in camera that receives the reflected light from the reflecting unit 203. When an object such as a finger is placed on the coordinate input surface 201, the reflected light is reflected according to the size of the object. Blocked. Therefore, a shadow image corresponding to the size of the object is input to the camera.
Therefore, as shown in FIG. 9, when objects A and B having different sizes are placed in the input area 107, a shadow image as shown in FIG. 9 is displayed on the camera at the scan timing of irradiation light corresponding to the position. Entered.
The detection information processing apparatus 204 calculates the coordinate positions of the objects A and B at the timing when the shadow image is input, and calculates the sizes of the objects A and B based on the size of the shadow image.

FIG. 3 is a diagram illustrating a data structure for each input event regarding information notified from the detection information processing apparatus 204 to the control computer 104.
The information notified from the detection information processing apparatus 204 includes the number of detected objects 302 such as an input pen and a finger existing on the coordinate input surface 201, and coordinate information 303 and detected object size information 304 for each detected object as one input data. Treat as 301.

FIG. 4 is a block diagram showing a functional configuration of the display content control program 1041 stored in the internal memory of the control computer 104.
The input data 301 notified from the detected information processing apparatus 204 is decomposed by the input information analysis unit 401 into detected object number information 302, coordinate information 303, and detected object size information 304.
The execution function control unit 402 refers to the function registered in the registration function storage unit 403 using the detected object number information 302 and the detected object size information 304 extracted by the input information analysis unit 401. The registered function execution unit 404 executes the referenced function, and reflects the execution result on the display device 106 together with the coordinate information 303.
Further, the information extracted by the input information analysis unit 401 is stored as history information in the input information storage unit 405, and the execution function control unit 402 uses the change amount between the new input information and the past coordinate information as an input value at the time of function execution. Refer to past input information for use as.

FIG. 5 is a correspondence example of the detected object number information, the detected object size information, and the execution function registered in the registration function storage unit 404.
In the present embodiment, the diameter of the size of the detected object is calculated in units of millimeters, and a function to be executed is assigned depending on whether the size of the detected object is within a certain range.
When the number of detected objects is 1, as shown in the table of FIG. 5A, if the object is less than 10 mm, writing is performed with a black pen at the position of the input coordinates, and the object is 10 mm or more and less than 20 mm. If there is, the writing is executed with the red pen at the position of the input coordinate. When the object is 20 mm or more and less than 40 mm, a function that allows the display object at the input coordinate position to be selected is executed. When the object is input by 40 mm or more, the content written by the eraser function is input to the input coordinate position. Perform erasure.

When the number of detected objects is 2, as shown in the table of FIG. 5B, a function that requires numerical input is executed separately from the function when the number of detected objects is 1.
If the object is less than 10 mm, the function of changing the enlargement ratio is executed for the current display content. If the object is 10 mm or more and less than 20 mm, the current line input function (for example, with a black pen) The input line thickness changing function is executed in the writing function).
When the object is 20 mm or more and less than 40 mm, the scroll function is executed for the current display content, and when inputting with an object of 40 mm or more, the slide page having a plurality of pages is moved. A display image switching function for switching the current display content to another image is executed.
The input numerical values used when executing these functions (for example, the enlargement ratio value in the enlargement ratio changing function) include the distance between the coordinates of the two objects detected by the current input and the coordinates of the two objects in the previous input. Use distance.

FIG. 6 is a diagram illustrating an input example when the number of input objects is one.
As shown in FIG. 6A, when the input object 601A having a diameter of less than 10 mm is input while being moved to the position 601B, the execution function control unit 402 counts the number of input objects in the registration function storage unit 403 in FIG. The input with the black pen in the item less than 10 mm is executed from the stored information of 1. Thereby, a line is input from the position of 601A toward the position of 601B.
As shown in FIG. 6B, when the input object 602A having a diameter of 40 mm or more is input while being moved to the position 602B, the execution function control unit 402 counts the number of input objects in the registration function storage unit 403 in FIG. Erasing by the eraser in the item of 40 mm or more from the stored information of 1 is executed. As a result, erasure is performed for writing in the region along the trajectory when moving from the position 601A toward the position 601B.

FIG. 7 is a diagram illustrating an input example when the number of input objects is two.
When input objects 701 and 702A having a diameter of less than 10 mm are input as shown in FIG. 7A, the execution function control unit 402 uses the stored information of the number of input objects 2 in the registration function storage unit 403 of FIG. 5B. Execute magnification change in items less than 10 mm. The enlargement ratio is changed by moving from the position 702A to the position 702B. When the distance between the two points increases from the distance between the two points at the time of the previous input, the enlargement process is performed. When the distance between the two points is reduced, a reduction process is performed.

  As shown in FIG. 7B, when input objects 703A and 704A having a diameter of 40 mm or more are input, the execution function control unit 402 uses the stored information of the number of input objects 2 in the registration function storage unit 403 in FIG. The display image switching in the item of 40 mm or more is executed. In the display image switching, when the distance between the two points is increased from the distance between the two points at the time of the previous input by moving from the position of 704A to the position of 704B, an image corresponding to the next page is displayed and the distance between the two points is When the distance between the two points at the time of the previous input is decreased, the image corresponding to the previous page is displayed.

FIG. 8 is a flowchart showing the processing of the display content control program 1041.
First, when input is performed, the display content control program 1041 extracts input object number information N, coordinate information P, and input object size information S (P and S are obtained by the number of input objects) from the input information ( Step 801).
Next, the target execution function E is referred from the registration function storage unit 403 based on the input object number information N and the input object size information S (step 802).

Next, it is determined whether or not the target execution function E is in an executable state (step 803).
If the target execution function E is not in an executable state, the input information is stored in the input information storage unit 405, and the process ends. If the target execution function E is executable, it is determined whether or not the input object number information N is 1 (step 804). When the input object number information N is 1, the target execution function E is executed as it is.
If the input object number information N is not 1, it is determined whether the target execution function E is a function that requires numerical input (step 805). If the target execution function E is not required to input a numerical value, the function is executed as it is as in the case where the input object number information N is 1.
In the case of a function that requires numeric input, first, the immediately preceding coordinate information P ′ is referred from the input information storage unit 405 (step 806).
Next, a difference D between the distance between the coordinates of P and the distance between the coordinates of P ′ is calculated, and D is set as an input value to the target execution function E and executed (steps 807, 808, and 809).
Finally, after the function E is executed, the input information is stored in the input information storage unit 405 and the process is terminated (step 810).

1 is a system configuration diagram showing an embodiment of an electronic board system according to the present invention. It is the schematic which showed an example of the coordinate detection apparatus which can detect the input coordinate in a some position, and the magnitude | size of the input object in an input coordinate. It is the figure which showed the data structure of the input information from a coordinate detection apparatus. It is a block diagram which shows the function structure of a display content control program. It is a correspondence example of the detected object number information, the detected object size information, and the execution function registered in the registration function storage unit. It is the figure which showed the example of input in case the number of input objects is 1. It is the figure which showed the example of input in case the number of input objects is two. It is a flowchart which shows the process of a display content control program. It is explanatory drawing which showed that the image of the shadow according to the position and magnitude | size of an object is input into a camera in a detection information processing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Electronic board 102 Input pen 103 Display screen projection apparatus 104 Computer for control 105 Keyboard 106 Display apparatus 107 Input area 1041 Display processing program 201 Coordinate input surface 202R Optical unit (right side)
202L optical unit (left side)
DESCRIPTION OF SYMBOLS 203 Reflection part 204 Detection information processing apparatus 301 Input data 302 Number of detected objects 303 Coordinate information 304 Detected object size information 401 Input information analysis part 402 Execution function control part 403 Registration function storage part 404 Registration function execution part 405 Input information storage part

Claims (4)

In an electronic board system provided with an information input device that detects a predetermined object that indicates a two-dimensional information input area and detects the size of the predetermined object and the number of specified locations as input information,
An electronic board system comprising: display control means for executing a function stored in advance in a registration function storage unit in accordance with the number of points indicated by a predetermined object detected by the information input device. In an electronic board system provided with an information input device that detects a predetermined object that indicates a two-dimensional information input area and detects the size of the predetermined object and the number of specified locations as input information,
An electronic board system comprising display control means for executing a function stored in advance in a registration function storage unit according to a size of a predetermined object detected by the information input device. In an electronic board system provided with an information input device that detects a predetermined object that indicates a two-dimensional information input area and detects the size of the predetermined object and the number of specified locations as input information,
An electronic board system comprising display control means for executing a function stored in advance in a registration function storage unit in accordance with the size of a predetermined object detected by the information input device and the number of designated locations.   When the display control unit executes a function that requires a value input, the difference value of the distance between the coordinate information history of the designated location by the predetermined object and the coordinate of the current input coordinate is used as the input value in the execution function. The electronic board system according to any one of claims 1 to 3, wherein:

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