JP2011203829A - Command generating device, method of controlling the same, and projector including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide: a command generating device allowing execution of commands without increasing the number of gestures corresponding to the commands and without the need to distinguish a drawing area from a command area on a display surface; a method of controlling the device; and a projector including the device.SOLUTION: A tablet personal computer 10 includes: an information detection unit 103 which detects information input by handwriting; and a command execution instruction output unit 117 which outputs an execution instruction of the command according to that content of the information is combination information obtained by combining a character indicating a specific command and a gesture for allowing a character to be recognized as a command.

Description

  The present invention relates to a command generation device, a control method thereof, and a projector including the same.

  Various devices capable of handwriting input with a stylus pen or a finger, such as an electronic blackboard and a tablet PC, have been proposed. In these devices, the action of touching the screen with a stylus pen or hand can give a plurality of types of input instructions such as drawing, erasing, and specifying. In addition to the act of drawing by hand, when calling other functions such as sending mail, printing, file input / output, etc., it is necessary to switch the operation mode to the mouse mode, etc., or operate using the keyboard.

  Patent Document 1 describes a handwriting input information processing apparatus that allows a handwritten object to be deleted, moved, and resized by an operation (gesture) similar to a handwriting operation with a stylus pen, thereby improving convenience. ing. As a handwriting editing command for specifying the editing processing type, “Erase” inputs the jaggedness of the image rubbed with the eraser multiple times, “Move” indicates “arrow”, “Zoom” indicates “<”, Each function can be entered by entering a graphic image of each edited content, such as “Rotate” as a “curved arrow” mark and “Shadow” as a “jagged key bracket” mark considering the direction of the shadow. Can be executed.

  Also in Patent Document 2, handwritten data input by handwriting input means is interpreted as a handwritten command, and at least a part of data corresponding to the input position of the interpreted command is specified as a processing target of the handwritten command. How to do is described. Functions such as delete, search, and copy are assigned to gestures.

  In Patent Document 3, a command area that accepts a character input of a command by handwriting operation is distinguished from a drawing area that accepts a character input other than a command, and each function is executed by handwriting a character into the command area. An information processing apparatus is described.

Japanese Patent Laid-Open No. 08-263688 JP 2007-42050 A Japanese Patent Laid-Open No. 06-75692

  However, according to Patent Documents 1 and 2, it is necessary to register a gesture corresponding to a command for executing each function. The more types of functions, the more gestures you can register. That is, since the number of gestures that the user has to remember increases, convenience decreases. Further, according to Patent Document 3, a command area and a drawing area are distinguished on the display surface, and a part of the display surface is used by the command area. There are inferior points.

  The present invention has been made to solve the above-described problem, and it is possible to execute a command without increasing the number of gestures corresponding to the command and without distinguishing the drawing area and the command area on the display surface. It is an object of the present invention to provide a command generation apparatus that can be executed, a control method thereof, and a projector including the same.

The command generation device of the present invention capable of solving the above-described problems includes an information detection unit that detects information input based on a locus of a designated position, and the content of the information includes a character indicating a specific command and a command of the character A command recognition unit for recognizing the character as a command and a command execution command output unit for outputting an execution command for the recognized command according to the combination information combined with a figure for recognition as a command It is characterized by.
According to the above configuration, a command is executed by a combination of characters and graphics. The figure is not a command itself for executing each function but a character to be recognized as a command. If a combination of a character and a figure is handwritten in the same drawing area, the command can be recognized based on the combination information of the character and the figure. For this reason, the command can be executed without increasing the number of gestures corresponding to the command as in the prior art and without having to distinguish the drawing area and the command area on the display surface.

In the command generation device of the present invention, the command recognition unit may include additional information in which the information includes a combination of a character indicating a parameter for the command and a figure for recognizing the character as a parameter. In response, the character is recognized as a parameter, and the command execution instruction output unit outputs an execution instruction of the command using the recognized parameter.
According to the above configuration, not only commands but also parameters can be given by combinations of characters and graphics. In this case, if the command and the parameter are expressed by different characters, the graphic for recognizing as a command and the graphic for recognizing as a parameter can be used as a common graphic. Therefore, even if the number of parameters increases, the number of figures (gestures) that the user has to remember does not increase, and convenience can be improved.

In the command generating device of the present invention, the command execution command output unit outputs the execution command in response to the figure being drawn with a predetermined locus.
According to the above configuration, it is possible to determine whether or not to output an execution command not only by the shape of a figure but also by handwriting (trajectory, stroke, handwriting). Therefore, even in a figure that is normally used, the user can recognize the character as a command or a parameter by intentionally changing the locus of the handwritten character.

Further, in the command generation device of the present invention, the command execution instruction output unit may include the information other than the combination information and the additional information when the information includes the other information. A command execution instruction is output.
According to the above configuration, for example, if the combination information is recognized as a print command and the A4 size is recognized using additional information as a parameter, other information can be printed in A4 size or saved as a file.

Further, in the command generation device of the present invention, the command execution instruction output unit may include the contents other than the character indicating the command and the character indicating the parameter in the graphic. A command execution instruction based on the command is output.
According to the above configuration, for example, keyword search can be performed or replaced using content other than characters indicating commands and parameters as keywords.

In addition, the control method of the command generation device of the present invention that can solve the above-described problem includes a step of detecting information input by handwriting, and the content of the information includes a character indicating a specific command and the character as a command. A step of determining whether or not combination information is combined with a figure for recognition; a step of recognizing the character as a command in response to the content of the information being combination information; and the recognized command Outputting an execution instruction.
According to the above configuration, the command can be executed without increasing the number of gestures corresponding to the command as in the past and without having to distinguish the drawing area from the command area on the display surface. An apparatus control method can be provided.

A projector comprising the command generator according to any one of the above.
According to the above configuration, it is possible to provide a projector that executes a command without increasing the number of gestures corresponding to the command as in the past and without having to distinguish between a drawing area and a command area on the display surface. it can.

It is a figure which shows schematic structure of the data output system of this embodiment. It is a figure which shows an example of a gesture recognition dictionary. It is a figure which shows an example of a command recognition dictionary. It is a flowchart for demonstrating the process which tablet PC in the projection system of this embodiment performs. (A) is a figure which shows a display screen when a character is handwritten, (b) is a figure which shows a display screen when a handwritten character is commanded, (c) is execution of a command FIG. 6D is a diagram showing the display screen after executing the print command. (A) is a figure which shows a display screen when the character of printing is commanded, (b) is a figure which shows a display screen when canceling | releasing the commanded object, (c) It is a figure which shows the display screen after cancelling | releasing the commanded object. (A) is a figure which shows a display screen when the character of File is commanded, (b) is a figure which shows a display screen when instruct | indicating execution of the command for preserve | saving as a file, (C) is a figure which shows the display screen after performing File command. (A) is a figure which shows a display screen when the character of File is commanded, (b) is a figure which shows a display screen when instructing execution of the command for reading a file, c) is a diagram showing a display screen after executing the File command. (A) is a figure which shows a display screen when the character of Search is commanded, (b) is a figure which shows a display screen when instruct | indicating execution of the command for searching a keyword, (C) is a figure which shows the display screen after performing a Search command. (A) is a figure which shows a display screen when a character is commanded, (b) is a figure which shows a display screen when instruct | indicating execution of the command for replacing a keyword, (c) These are figures which show the display screen after performing a replacement command. It is the figure which showed the example at the time of mounting the command generator of this invention in a projector.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a command generation device and a control method thereof according to the present invention will be described in detail with reference to the drawings.
In the present embodiment, a tablet PC is exemplified as the command generation device, and the same image data as the image displayed on the display surface of the tablet PC is output to a projector, a printer, a mail server, and the like that are connected to be communicable with the tablet PC. The data output system 1 will be described.

<About the schematic configuration of the data output system>
As shown in FIG. 1, the data output system 1 includes a projector 20 that enlarges and projects an image transmitted from the tablet PC 10 onto a projection surface such as a screen, a printer 30 that prints data transmitted from the tablet PC 10, and a tablet. A mail server 40 that attaches data transmitted from the PC 10 to an e-mail and transmits the data to a designated destination, and the apparatuses are connected to each other by a wired or wireless LAN. Since the projector 20, the printer 30, and the mail server 40 have a general configuration, a detailed hardware configuration will not be described.

  The projector 20 includes various image signal processing systems such as an interface for transmitting / receiving various data to / from the tablet PC 10, a projection lamp for projecting an image, and a projection lens for enlarging and projecting projection light from the projection lamp on a screen. Projection means comprising an optical system is provided. The printer 30 includes an interface for transmitting and receiving various data to and from the tablet PC 10, a printing mechanism unit that performs printing processing based on the received data, and the like. The mail server 40 also stores an interface for transmitting and receiving various data to and from the tablet PC 10 and an external network, user authentication information managed by the mail server 40, an e-mail address address managed by the mail server 40, and the like. Storage unit. It has functions such as a mail transfer agent that distributes the destination and a function to deliver the distributed mail to a user in the server or another server, and sends the image file received from the tablet PC 10 to the specified destination. Can be done.

  The tablet PC 10 includes a CPU (not shown) that forms the center of arithmetic processing, and this CPU can access ROM and RAM via a system bus. In addition, a hard disk drive as an external storage device is connected to the system bus, and an OS (Operating System) and applications stored in the hard disk drive are transferred to the RAM. Execute.

  In this embodiment, the hard disk drive stores a presentation application, an operation position detection program, a character recognition application, and the like. When the CPU executes the OS and these programs, drawing information handwritten on the display unit 101 by the stylus pen is converted into digital data, and is synthesized into a content image for presentation, for example, and transmitted to the projector 20. it can.

  As the CPU of the tablet PC 10 executes an OS, a presentation application, an operation position detection program, and a character recognition application, the tablet PC 10 includes a display unit 101, an information detection unit 103, and a control unit 105 as shown in FIG. A storage unit 107 and a transmission / reception unit 109 are configured.

The display unit 101 is a liquid crystal display that displays images and operation details. The information detection unit 103 is a touch panel that detects input to the display unit 101 using a stylus pen and various key operations.
The information detection unit 103 detects the position where the stylus pen touches the display surface 101, converts it into digital data, and outputs the drawing data drawn on the display surface to the control unit 105. As a method for detecting the position in contact with the display surface, there are a pressure-sensitive method for sensing a change in pressure, an electrostatic method for sensing an electric signal due to static electricity, and the like.

The control unit 105 includes an image processing unit 111, a gesture recognition unit 113, a command recognition unit 115, and a command execution command output unit 117.
The image processing unit 111 acquires image data based on content files stored in various drives such as a hard disk drive, and processes the image data displayed on the display unit 101 or projected on the projector 20. Further, the image processing unit 111 synthesizes information handwritten by the user with image data based on the drawing data acquired from the information detection unit 103. The combined image data is output to the display unit 101 and transmitted to the projector 20 via the transmission / reception unit 109.

  Based on the drawing data acquired from the information detection unit 103, the gesture recognition unit 113 recognizes a graphic indicated by the locus of the stylus pen handwritten by the user. It is determined whether or not the recognized figure matches a predefined gesture. In response to the match, it recognizes that the gesture is an input gesture for executing the corresponding function, and notifies the command recognition unit 115 of the function corresponding to the input gesture. Whether or not the figure matches the gesture is determined in consideration of not only the shape but also the stylus pen stroke (trajectory, stroke, handwriting).

  The command recognition unit 115 performs character recognition on the information included in the gesture range recognized by the gesture recognition unit 113. It is determined whether the text character obtained by character recognition matches a predefined command. In response to the match, the text character and the gesture recognized by the gesture recognition unit 113 are recognized as combination information. Then, the command recognition unit 115 recognizes the text character as an input command for executing the corresponding function in response to the combination information. The function corresponding to the input command is notified to the command execution instruction output unit 117.

  In addition, the command recognition unit 115 performs character recognition on the information included in the gesture range recognized by the gesture recognition unit 113, and the text characters obtained by the character recognition match the predefined parameters. It is determined whether or not. In response to the match, the text character and the gesture recognized by the gesture recognition unit 113 are recognized as additional information. Then, the command recognition unit 115 recognizes the text character as a parameter given to the command according to the additional information. The input parameter is notified to the command execution instruction output unit 117.

  Further, the command recognition unit 115 recognizes other characters as keywords when the text characters obtained by character recognition include other characters that do not match the predefined commands and parameters. To do. Then, the input keyword is notified to the command execution instruction output unit 117.

  In response to the notification from the command recognition unit 115, the command execution command output unit 117 generates and outputs a command execution command recognized by the command recognition unit 115. The command execution command is transmitted to each of the devices 20, 30, and 40 that execute the function.

  The command execution command output unit 117 receives a notification from the gesture recognition unit 113 and the command recognition unit 115, and generates and outputs a command execution command using the parameters recognized by the command recognition unit 115. The command execution command is transmitted to a device that executes the function.

  In addition, the command execution command output unit 117 determines that the command data for the other information is included in the drawing data acquired from the information detection unit 103, in addition to the combination information and the additional information described above. Output an execution instruction. The other information is information that does not need to be recognized as a command or parameter, such as a conference handwritten by the user or a memo handwritten in addition to the displayed content image.

  In addition, the command execution command output unit 117 receives the notification from the command recognition unit 115, and the contents indicated by the gesture recognized by the gesture recognition unit 113 include contents other than characters indicating commands and characters indicating parameters. In response, the command execution instruction based on the content is output. The contents other than the characters indicating commands and the characters indicating parameters are, for example, characters that are not registered in the command recognition dictionary 125. Specifically, the file name when reading the file, the keyword when performing keyword search or replacement, and the like.

  The storage unit 107 is a predetermined storage area of, for example, a ROM or a hard disk drive. Here, a character recognition dictionary 121, a gesture recognition dictionary 123, and a command recognition dictionary 125 are stored. The character recognition dictionary 121 is a dictionary in which the relationship between drawing data and character font data associated with the drawing data is defined. By providing the character recognition dictionary 121, information handwritten on the display unit 101 by the user with the stylus pen can be converted into text characters.

  As shown in FIG. 2, the gesture recognition dictionary 123 is a dictionary in which a relationship between a function and a graphic (including a stroke) associated with the function is defined. Here, “circle”, “double circle”, “double line”, “dashed line”, “black circle at the end of line”, “circle end” are used as figures for “recognizing command / parameter” Is associated with “black circle”. Note that “circle”, “double circle”, and “double line” are recognized as “circle”, “double circle”, and “double line” figures, but they recognize the stroke when drawn. May be. For “circle”, “double circle”, and “black circle at the end of the circle”, characters written inside the circle are recognized as commands. For “double line”, “wavy line”, and “black circle at the end of line”, a character written on the line (area indicated by a broken line) is recognized as a command.

  Furthermore, “arrow 1”, “arrow 2”, and “black circled lines at both ends” are associated as figures for “giving parameters and starting”. In addition, “Arrow 1” and “Arrow 2” can input the content of the source of the arrow as a parameter of the content (object) at the end of the arrow.

  Furthermore, “X”, “Double strikethrough”, and “Double strikethrough with diagonal lines” are associated as figures for “releasing what has become a command object”. By writing these figures over an object recognized as a command, the command recognized once is recognized again as a simple figure.

  As shown in FIG. 3, the command recognition dictionary 125 is a dictionary in which a relationship between a function and a character written as a command associated with the function is defined. For example, when the printer 30 wants to execute printing, the character written as the command is any one of “print”, “print”, and “printer”. Moreover, it is also possible to specify a sentence including characters [A4] and [color] written as parameters, such as “A4, print in color”. If you want to send an email, write "Email to [name]" and the email will be sent to the email address corresponding to the name. In this case, a mail address corresponding to the name may be registered in the command recognition dictionary 125.

  The transmission / reception unit 109 is a communication interface for transmitting / receiving data to / from the projector 20, the printer 30, the mail server 40, and the like, a wireless driver, and the like. The execution command output from the command execution command output unit 117 is transmitted to each device via the transmission / reception unit 109. The transmission / reception unit 109 can also be configured by a connector for wired connection, a LAN cable, and the like.

<About control method of tablet PC>
Next, a method for controlling the tablet PC in the data output system described above will be described with reference to FIGS.
When the user performs handwriting on the display unit 101 with a stylus pen, the information detection unit 103 converts the drawing data into drawing data and transmits the drawing data to the control unit 105. The gesture recognition unit 113 recognizes the shape of the line input by handwriting based on the drawing data (step S11).

  The gesture recognition unit 113 refers to the gesture recognition dictionary 123 to determine whether or not the line shape matches the defined graphic. That is, it is determined whether or not the shape of the line is registered as a gesture (step S13). If a matching figure (including a stroke) is registered in the gesture recognition dictionary 123 (step S13: Yes), it is recognized as a gesture. Next, it is determined whether or not the recognized gesture is defined as a command (step S15). That is, the shape of the line is “circle”, “double circle”, “double line”, “wavy line”, “black circle at the end of the line” and “end of circle” including the stroke in the figure shown in FIG. If it matches any of the “black circles”, it is determined that the gesture is commanded, and the command recognition unit 115 is notified.

  If the gesture recognizing unit 113 determines that the gesture is a commanded gesture (step S15: Yes), the command recognizing unit 115 recognizes information included in the range indicated by the gesture, that is, inside the circle or on the line. Do. That is, the command recognition unit 115 refers to the character recognition dictionary 121, performs character recognition based on the drawing data written in the range indicated by the gesture, and converts it into text characters (step S19).

  Furthermore, the command recognition unit 115 determines whether or not a character that matches the text character obtained by character recognition is registered in the command recognition dictionary 125 shown in FIG. If the registered character is included, the command recognition unit 115 recognizes the text character and the gesture recognized by the gesture recognition unit 113 as combination information. In accordance with the combination information, the combination information is recognized as a command object (step S21: Yes). The image processing unit 111 generates image data in which the color of the command object portion is changed, and displays the image data on the display unit 101 or the projector 20 (step S23).

  On the other hand, if the command recognition unit 115 determines that the character that matches the text character obtained by character recognition is not registered in the command recognition dictionary 125 shown in FIG. 3 (step S21: No), The gesture and characters included in the range of the gesture are held as object attributes (step S25).

  By the way, if the gesture recognition part 113 determines in step S15 that the recognized gesture is a gesture not defined as a command (step S15: No), it determines whether it is a gesture for giving a parameter ( Step S27). That is, it is determined whether or not the shape of the line is an arrow gesture among the figures shown in FIG. If it matches any of “arrow 1”, “arrow 2”, and “black circles at both ends”, the command execution command output unit 117 identifies the objects connected by the arrows (step S29). Further, the command execution instruction output unit 117 gives the command object of the arrow as a data parameter of the arrow source, and outputs a command execution instruction (step S31).

  On the other hand, when the gesture recognizing unit 113 determines in step S27 that the recognized gesture is not an arrow gesture among the figures shown in FIG. 2 (step S27: No), the gesture recognition unit 113 executes the operation defined in the other gestures. (Step S33).

  FIG. 5 is a diagram showing the state of the display screen when the information on the display screen is printed. As shown in FIG. 5A, after the user has handwritten on the display unit 101 with the stylus pen, as shown in FIG. 5B, the character [print] indicating the command and the character [A4] indicating the parameter are circled. When enclosed, the circled area turns blue or red. As a result, the user can recognize that the command object or the object indicating the parameter has been obtained. Further, as shown in (c), when an arrow is drawn, a print command execution command for printing an area enclosed by a square from which the arrow originated (area recognized as an object attribute in step S25) is displayed as a prompter. And the display screen is printed in A4 size. Further, when the source area is not designated, the entire screen may be printed. Note that, as shown in (d), the figure or stroke (square range designation or arrow) used to execute printing may be set to automatically disappear after the execution of the function is completed.

  FIG. 6 is a diagram showing the state of the display screen when releasing the commanded object. As shown in FIG. 6A, when a user normally writes with a stylus pen but is recognized as a command object, by drawing a release figure as shown in FIG. As shown in c), a command cancel command for canceling recognition as a command is output, and the commanded object is cancelled.

  FIG. 7 is a diagram showing the state of the display screen when information on the display screen is saved as a file. As shown in FIG. 7A, when saving with a file name, a file command object is created, and as shown in FIG. 7B, a graphic representing saving (in this case, an inward arrow) is drawn. As a result, a save command execution command for saving the contents of the screen is output, and the display screen is saved as a file. Note that, as shown in (c), the arrow may be set to automatically disappear after the file is saved.

  FIG. 8 is a diagram showing the state of the display screen when opening a file. As shown in FIG. 8 (a), [File] and [File name] of the file to be opened (contents other than characters indicating commands and parameters) are written, and a command object is created by enclosing them in a circle. . As shown in (b), a command execution command for opening a file having a specified file name is output by drawing a graphic representing the opening of the file (in this case, an outward arrow). As shown in (c), the file is called and the contents of the file are displayed on the display unit 101.

  FIG. 9 is a diagram showing the state of the display screen when performing a keyword search. As shown in FIG. 9A, [Search] (characters indicating commands) and [Keywords] (contents other than characters indicating commands and characters) are written and surrounded by circles to search command objects. Create By executing (in this case, touching or clicking) a search command object, a command execution command for searching for a keyword for information written on the display screen is output as shown in FIG. As shown in (c), the color of the character matching the keyword is changed to red or blue and displayed.

  FIG. 10 is a diagram showing the state of the display screen when characters are replaced. As shown in FIG. 10A, a replacement command object is created by writing [telephone → TEL] and enclosing it in a circle. As shown in (b), by executing a replacement command object (here, touch or click), a command execution command for replacing [telephone] with [TEL] for information written on the display screen is provided. Is output. As shown in (c), [TEL] written on the screen is replaced with [TEL].

  According to the above-described embodiment, a command execution command is output by being recognized as a command object by a combination of a figure (including a stroke), that is, a gesture and a character. That is, the gesture is not a command itself for executing each function, but a character is recognized as a command, and is recognized as a command object by combination information of the character and the gesture. In other words, the user only has to hand-write the combination information of characters and gestures in the same drawing area, so that the drawing area and the command area are distinguished from each other without increasing the number of gestures corresponding to the command as in the past. Commands can be executed without need.

  Further, according to the above embodiment, not only commands but also parameters can be given by a combination of characters and gestures. If the command and the parameter are expressed by different characters, a gesture for recognizing as a command and a gesture for recognizing as a parameter are common gestures (“circle” and “double circle” in the example shown in FIG. 2). , “Double line”, “wavy line”, “black circle at the end of the line” and “black circle at the end of the circle” are common gestures). Therefore, even if the types of commands and parameters increase, the number of gestures that the user has to remember does not increase, and convenience can be improved.

  Moreover, according to the said embodiment, it can be determined whether a command execution command is output by the handwriting (trajectory, stroke, handwriting) of a figure. That is, even if the same figure is used, if the stroke is different, it is recognized as a simple figure without being recognized as a gesture. Therefore, the user can recognize the character as a command or a parameter by intentionally changing the stroke.

  Further, according to the above embodiment, as shown in FIG. 5, the combination information of the character [print] and the gesture [circle] is recognized as a print command, and the combination information of the character [A4] and the gesture [circle] is recognized. Can be recognized as a parameter. Further, as shown in FIGS. 9 and 10, keyword search can be performed using a character other than the characters indicating the command and the parameter as a keyword, or the keyword can be replaced.

  In the above-described embodiment, the tablet PC 10 is exemplified and described as the command generation device. However, the present invention is not limited to the tablet PC 10, and a locus input by handwriting is converted into digital data, and is combined with the original image data and displayed. It can also be employed in devices that can. For example, there is an interactive electronic blackboard system.

In addition to the pressure-sensitive method and the electrostatic method described in the above embodiment, the following method can also be adopted as means for detecting the trajectory of the fingertip or stylus pen and converting it into digital data.
(Laser type)
Infrared lasers are installed at both ends of the upper side of the whiteboard, the laser beam monitors the surface of the projection surface, and the reflector is attached to the stylus pen to detect the position by reflecting the laser beam.
(Infrared, ultrasonic type)
In this configuration, infrared emitting elements are placed on the top, bottom, left, and right of the whiteboard, the infrared rays are run diagonally in the vertical and horizontal directions, and the coordinates are obtained by detecting the blocked position.
(Optical, infrared type)
When the surface of the whiteboard is pressed with a finger or a marker, the position is acquired trigonometrically by the infrared light emitting device and the light receiving device that monitor the surface on the board.

  In the above embodiment, the display unit 101, the information detection unit 103, the image processing unit 111, the gesture recognition unit 113, the command recognition unit 115, the command execution command output unit 117, the character recognition dictionary 121, the gesture recognition dictionary 123, and the command recognition Although the tablet PC 10 includes the dictionary 125, each functional unit may be configured in any of the devices that constitute the data output system. For example, as shown in FIG. 11, the projector 20 may be configured to have the above-described functions, and a trajectory of information handwritten on the whiteboard WB corresponding to the display unit 101 may be captured by a built-in camera (information detection unit). .

1: data output system, 10: tablet PC, 20: projector, 30: printer, 40: mail server, 101: display unit, 103: information detection unit, 105: control unit, 107: storage unit, 109: transmission / reception unit, 111: Image processing unit, 113: Gesture recognition unit, 115: Command recognition unit, 117: Command execution command output unit, 121: Character recognition dictionary, 123: Gesture recognition dictionary, 125: Command recognition dictionary

Claims (7)

An information detection unit for detecting information input by the locus of the indicated position;
A command recognizing unit for recognizing the character as a command in response to the content of the information being combination information combining a character indicating a specific command and a graphic for recognizing the character as a command;
A command execution instruction output unit for outputting an execution instruction for the recognized command;
A command generator characterized by comprising: The command recognition unit recognizes the character as a parameter when the information includes additional information combining a character indicating a parameter for the command and a graphic for causing the character to be recognized as a parameter. And
The command generation apparatus according to claim 1, wherein the command execution instruction output unit outputs an execution instruction of the command using the recognized parameter.   The command generation apparatus according to claim 1, wherein the command execution command output unit outputs the execution command in response to the figure being drawn with a predetermined trajectory.   The command execution command output unit outputs the command execution command for the other information in response to the information including information other than the combination information and the additional information. The command generation device according to any one of claims 1 to 3.   The command execution command output unit outputs an execution command for the command based on the content in response to the fact that the graphic includes characters other than characters indicating the command and characters indicating the parameter. The command generation device according to any one of claims 1 to 4, wherein Detecting handwritten information; and
Determining whether the content of the information is combination information combining a character indicating a specific command and a graphic for recognizing the character as a command;
Recognizing the character as a command in response to the content of the information being combination information;
And a step of outputting an execution instruction for the recognized command.   A projector comprising the command generation device according to claim 1.

Images