JP5884294B2 - Content display device, content display system, server, terminal, content display method, and computer program - Google Patents

Description

  The present invention relates to a content display device that displays content on a display device, and more particularly to a content display device that can change a display magnification of a content being displayed.

  There is known a content display device capable of changing a display magnification of a content being displayed. Here, the content refers to data that can be displayed on a display device, such as a still image such as a photograph, a document including text and images, or a moving image such as a video image. As such a content display device, there is a device that acquires input information indicating position coordinates in a content being displayed and changes the display magnification of the content according to the acquired input information. For example, such a content display device displays content on a display with a touch panel in which a display device such as a liquid crystal display and a coordinate input device such as a touch panel are integrally formed. And such a content display apparatus changes the display magnification of a content according to the input information acquired via a display with a touch panel.

  An example of such a content display device is described in Patent Document 1. The content display device described in Patent Literature 1 detects a touch operation with a touch pen or the like on a display with a touch panel during content display. When the content display device detects a touch operation for a certain time or longer, the content display device enlarges and displays the content around the touch point.

  Another example of such a content display device is described in Patent Document 2. The content display device described in Patent Document 2 detects a touch operation with a finger of a hand on a display with a touch panel during content display. And this content display apparatus expands and displays the content of the predetermined area | region centering on the center coordinate of a contact area. Further, the content display device sets the enlargement ratio so that the size of the region representing one character included in the pop-up region is larger than the size of the detected contact region.

  Still another example of such a content display device is described in Patent Document 3. The content display device described in Patent Literature 3 detects a touch operation on a display with a touch panel during content display. Then, the content display device displays an enlarged display area obtained by enlarging a predetermined range of content including the contact position, superimposed on the previously displayed content. In addition, the content display device sets an enlargement ratio based on the type of information displayed around the contact position.

JP 2004-046797 A JP 2010-146279 A JP 2010-237828 A

  By the way, the content display apparatus as described above often has a function of superimposing and displaying handwritten information input with a touch pen or a finger of a hand on the content being displayed. In such a content display device, the display magnification of the content when inputting handwritten information becomes a problem.

  For example, consider a case where handwritten information is input to content representing a document. In this case, it is considered that there are many cases where handwritten information is input to blank areas such as line intervals, paragraphs, and top / bottom / left / right of a page being displayed. At this time, if the entire content representing the document is reduced and displayed so as to fit within the display area of the display with a touch panel, the margin area is also reduced and displayed, so the area is small. Therefore, the amount of information of handwritten characters that can be input to such a small blank area is reduced.

  Therefore, in the content display device as described above, it is conceivable that the content is enlarged and displayed when an operation of inputting handwritten information is performed on the display with a touch panel displaying the content. At this time, after the handwritten information is input in a state in which the content is displayed in an enlarged manner, if the operation for returning to the display magnification at the time of viewing the content is performed, the handwritten information displayed in a reduced size is more difficult for the user to recognize than at the time of input. There is a case. For example, when handwritten information represents a character, the handwritten character displayed in a reduced size may be more difficult to read than when it is input. Such a problem is likely to occur when the thickness of the drawing line constituting the handwritten information is thicker and the reduction ratio from the display magnification at the time of inputting handwritten information to the display magnification at the time of browsing is higher. For example, a drawing line by a touch operation with a finger of a hand is generally thicker than a drawing line by a touch pen.

  However, in such a case, the content at the time of inputting handwritten information while taking into account the thickness of the drawing line constituting the handwritten information so that the handwritten information is displayed in a recognizable manner when the display magnification is restored at the time of viewing the content. The operation for adjusting the display magnification is complicated.

  Patent Document 1 does not describe such adjustment of content display magnification.

  Moreover, although the content display apparatus described in Patent Document 2 can set the display magnification so that the size of one character after enlargement is larger than the contact area, when the display magnification is returned to the display magnification at the time of browsing the content. It is not possible to set an appropriate display magnification when inputting handwritten information so that the handwritten information is displayed in a recognizable manner.

  Further, the content display device described in Patent Document 3 can set the display magnification according to the type of content, but the handwritten information is displayed in a recognizable manner when the display magnification is restored to the content browsing time. It is not possible to set an appropriate display magnification when inputting handwritten information.

  The present invention has been made in order to solve the above-described problems, and an appropriate display magnification at the time of handwritten information input is set so that the handwritten information is displayed in a recognizable manner when the display magnification at the time of content browsing is restored. An object is to provide a configurable content display device.

  The content display device of the present invention includes a content acquisition unit that acquires information representing content to be displayed on the display device, a content output unit that outputs the content to the display device, and an input that detects a contact position of a contact object An operation information generation unit that generates operation information based on information acquired via the device, a contact object determination unit that determines the type of the contact object, and a display for inputting handwritten information to be superimposed on the content When operation information representing a magnification change instruction is generated, a handwritten information size predicted value representing a size of a unit area of handwritten information that is predicted to be input thereafter is obtained based on the type of the contact object. A display magnification determining unit that determines a display magnification at the time of input, which is a display magnification at the time of inputting the handwritten information, based on a predicted value of the handwritten information size; According 示倍 rate and a display control unit that controls to output the image magnification of the content to the content output section.

  The content display system of the present invention is a content display system including a terminal and a server, wherein the terminal acquires a content acquisition unit that acquires content to be displayed on the display device, and a contact object. An input information transmitting unit that transmits information acquired via an input device that detects a contact position to the server, and the content is output to the display device, and the content is changed at a display magnification determined by the server. A content output unit that outputs the doubled image to the display device, and the server generates an operation information based on information received from the input information transmission unit of the terminal; Based on the information received from the input information transmission unit of the terminal, the type of the contact object that has touched the input device at the terminal is determined. When the operation information representing the handwritten information to be superimposed and displayed on the content is generated, the contact object discriminating unit corresponds to the measured handwritten information size representing the size of the unit area of the handwritten information and the type of the contact object A history storage unit for storing the history of the attached information, and operation information representing a display magnification change instruction for inputting the handwritten information, the unit area of the handwritten information predicted to be input thereafter A handwritten information size predicted value representing a size is obtained based on the history of the handwritten information size measured value associated with the type determined by the contact object determining unit, and based on the calculated handwritten information size predicted value, A display magnification determining unit for determining an input display magnification that is a display magnification at the time of inputting the handwritten information, and an image obtained by scaling the content according to the input display magnification And a display control unit that controls the content output unit of the terminal so as to output.

  The terminal of the present invention is a terminal having a display device that displays content and an input device that detects the contact position of a contact object, and a content acquisition unit that acquires information representing content to be displayed on the display device An input information transmission unit that transmits information acquired via the input device to a server that determines a display magnification of the content based on the type of the contact object, and outputs the content to the display device And a content output unit that outputs an image obtained by scaling the content at a display magnification determined by the server to the display device.

  The server of the present invention is a server that receives information obtained via the input device from a terminal having a display device that displays content and an input device that detects a contact position of a contact object, the input device An operation information generation unit that generates operation information based on information obtained through the input device, a contact object determination unit that determines the type of the contact object based on information obtained through the input device, and the content When operation information representing handwritten information to be displayed in a superimposed manner is generated, a history that accumulates a history of information in which a measured value of a handwritten information size that represents the size of a unit area of the handwritten information and a type of the contact object is associated When the storage unit and the operation information representing the display magnification change instruction for inputting the handwritten information are generated, the unit area of the handwritten information predicted to be input thereafter A handwritten information size predicted value representing the crispness is obtained based on the history of the handwritten information size measured value associated with the type determined by the contact object determining unit, and based on the calculated handwritten information size predicted value, A display magnification determination unit that determines a display magnification during input that is a display magnification during input of the handwritten information, and a display control unit that controls the terminal to display an image obtained by scaling the content according to the display magnification during input And comprising.

The content display system of the present invention is a content display system including a terminal and a server, wherein the terminal acquires a content acquisition unit that acquires information representing content to be displayed on a display device, and the content A content output unit for outputting to the display device;
An operation information generation unit that generates operation information based on information acquired via an input device that detects a contact position of a contact object, a contact object determination unit that determines the type of the contact object, and a superimposed display on the content When the operation information representing the handwritten information to be generated is generated, the history transmission for transmitting to the server information that associates the measured value of the handwritten information size representing the size of the unit area of the handwritten information with the type of the contact object And the operation information representing the display magnification change instruction for inputting the handwritten information is generated, the history of the measured handwritten information size associated with the type of the contact object is received from the server. Thus, based on the received history of the handwritten information size actual measurement value, the handwritten information size that represents the size of the unit area of handwritten information that is predicted to be input thereafter A measured value is obtained, and based on the calculated handwritten information size predicted value, a display magnification determining unit that determines a display magnification at the time of input, which is a display magnification at the time of inputting the handwritten information, and the content according to the display magnification at the time of input A display control unit configured to control the scaled image to be output to the content output unit, and the server associates the handwritten information size actual measurement value and the type of the contact object with each other. A history storage unit that stores the history of the measured handwritten information size associated with the type of the contact object specified in the request from the terminal, and stores the history of the measured value of the handwritten information size corresponding to the type of the contact object specified in the request from the terminal. .

  The content display method of the present invention acquires information representing content, displays the information on the display device, and information obtained from the input device when the contact position is detected in the input device that detects the contact position of the contact object. The operation information is generated based on the type of the contact object, the type of the contact object is determined, and if the operation information represents a display magnification change instruction for inputting handwritten information to be superimposed on the content, it is predicted to be input thereafter The handwritten information size predicted value representing the size of the unit area of the handwritten information to be obtained is obtained based on the type of the contact object, and based on the obtained handwritten information size predicted value, the display magnification at the time of inputting the handwritten information An input display magnification is determined, and an image obtained by scaling the content according to the input display magnification is displayed on the display device.

  In addition, the computer program of the present invention obtains information representing content and displays the content on the display device, and when the contact position is detected in the input device that detects the contact position of the contact object, the input device An operation information generation step for generating operation information based on information obtained from the above, a contact object determination step for determining the type of the contact object, and a display for inputting handwritten information that the operation information is to be superimposed on the content When representing a magnification change instruction, a handwritten information size predicting step for obtaining a handwritten information size predicted value representing a size of a unit area of handwritten information predicted to be input thereafter based on the type of the contact object, and the handwriting Based on the information size prediction value, a display magnification at the time of input that is a display magnification at the time of inputting the handwritten information is determined. And 示倍 rate determining step, and executes a content scaling step of displaying an image magnification of the content according to the input when the display magnification on the display device, to a computer device.

  The present invention can provide a content display device capable of setting an appropriate display magnification at the time of inputting handwritten information so that the handwritten information is displayed in a recognizable manner when the display magnification at the time of content browsing is restored.

It is a hardware block diagram of the content display apparatus as the 1st Embodiment of this invention. It is a functional block diagram of the content display apparatus as the 1st embodiment of the present invention. It is a figure which shows an example of the calculation formula which the content display apparatus as the 1st Embodiment of this invention determines a display magnification. It is a flowchart explaining operation | movement of the content display apparatus as the 1st Embodiment of this invention. It is a flowchart explaining the detail of the operation | movement which the content display apparatus as a 1st Embodiment of this invention determines a display magnification. It is a functional block diagram of the content display apparatus as the 2nd Embodiment of this invention. It is a flowchart explaining operation | movement of the content display apparatus as the 2nd Embodiment of this invention. It is a flowchart explaining the detail of the operation | movement which the content display apparatus as the 2nd Embodiment of this invention determines a display magnification. It is a hardware block diagram of the content display system as the 3rd Embodiment of this invention. It is a functional block diagram of the content display system as the 3rd Embodiment of this invention. It is a flowchart explaining operation | movement of the content display system as the 3rd Embodiment of this invention. It is a functional block diagram of the content display system as the 4th Embodiment of this invention. It is a flowchart explaining operation | movement of the content display system as the 4th Embodiment of this invention.

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

(First embodiment)
FIG. 1 shows a hardware configuration of a content display device 1 as a first embodiment of the present invention. 1, a content display device 1 includes a CPU (Central Processing Unit) 1001, a RAM (Random Access Memory) 1002, a ROM (Read Only Memory) 1003, a display 1004 with a touch panel, a hard disk, and a nonvolatile flash memory. And a storage device 1005 and the like.

  The ROM 1003 and the storage device 1005 store various computer program modules and various data for causing the computer device to function as the content display device 1. The storage device 1005 also stores data representing content to be displayed on the touch panel display 1004.

  The CPU 1001 causes the computer device to function as the content display device 1 by reading the computer program module and data stored in the ROM 1003 or the storage device 1005 into the RAM 1002 and executing them.

  The touch panel display 1004 is an apparatus in which a liquid crystal display and a touch panel are integrally formed. A display 1004 with a touch panel displays an image processed by the CPU 1001. Further, the display 1004 with a touch panel acquires input information by detecting the contact position of the contact object. For example, the display 1004 with a touch panel may detect a contact position of a contact object using a contact detection technique such as a resistive film method, a capacitance method, or an electromagnetic induction method. Resistive film system is a technology that detects the place where electricity is passed by attaching a conductive thin film to both the glass constituting the display screen and the film attached to the glass at a slight interval. It is. The electrostatic capacity method is a technique for detecting a position touched on the conductive film by the fingertip by capturing a change in electrostatic capacity between the fingertip and the conductive film. The electromagnetic induction method is a technique for detecting a touched position by receiving electromagnetic energy generated when the touch panel is touched by a dedicated touch pen capable of generating a magnetic field.

  This display 1004 with a touch panel constitutes an embodiment of a display device and an input device in the present invention. In each embodiment of the present invention, the display device and the input device in the present invention are described as being configured by a display with a touch panel. However, the input device and the display device in the present invention are not necessarily formed integrally. May be. The display device in the present invention may be any device that can display an image representing content. The input device according to the present invention may be any device that acquires input information by detecting the contact position of a contact object. For example, the content display device of the present invention can be configured by a notebook computer provided with a liquid crystal display and a touch pad.

  Next, the functional block configuration of the content display device 1 is shown in FIG. 2, the content display device 1 includes a content acquisition unit 101, a content output unit 102, a display control unit 103, an operation information generation unit 104, a contact object determination unit 105, and a display magnification determination unit 106. . Here, the content acquisition unit 101, the content output unit 102, the operation information generation unit 104, and the contact object determination unit 105 read the computer program module and data stored in the ROM 1003 or the storage device 1005 into the RAM 1002. It is comprised by CPU1001 to perform and the display 1004 with a touch panel. The display control unit 103 and the display magnification determination unit 106 are configured by a CPU 1001 that reads a computer program module and data stored in the ROM 1003 or the storage device 1005 into the RAM 1002 and executes them. Note that the hardware configuration constituting each functional block of the content display device 1 is not limited to the above-described configuration.

  The content acquisition unit 101 acquires information representing content to be displayed on the touch panel-equipped display 1004. For example, the content acquisition unit 101 may display information representing a list of content on the display 1004 with a touch panel and acquire information representing the content displayed at the contact position detected by the display 1004 with a touch panel. In addition, the content acquisition unit 101 determines whether or not the content indicated by the acquired information is stored in the storage device 1005. If the content is stored, the content acquisition unit 101 transmits information representing the corresponding content to the display control unit 103 described later. Notice. Further, when the content indicated by the acquired information is not stored in the storage device 1005, the content acquisition unit 101 may notify the user of information indicating that the content is not stored via the display with touch panel 1004. .

  The content output unit 102 displays the content on the display 1004 with a touch panel based on the control of the display control unit 103 described later. When the display control unit 103 (to be described later) instructs the content output unit 102 to superimpose handwritten information, the content output unit 102 displays an image in which the corresponding handwritten information is superimposed on the displayed content on the display 1004 with a touch panel. Further, when the display magnification is designated by the display control unit 103 described later, the content output unit 102 changes the display magnification of the content being displayed to the designated magnification and redisplays it. Here, the display magnification refers to a scaling factor for content displayed at a reference size. Further, the reference size may be, for example, a size in which each pixel constituting an image representing content is displayed corresponding to one dot constituting the display with touch panel 1004. In the case of content in which a paper size at the time of printing is set, the reference size may be a size displayed on the touch panel display 1004 with substantially the same size as the paper size at the time of printing. . Hereinafter, the reference size is also referred to as “full size”.

  Further, the content output unit 102 may display the content on the touch panel display 1004 at a predetermined initial magnification when the display control unit 103 does not specify the display magnification. The initial magnification may be, for example, a full size or other fixed value. Alternatively, the initial magnification may be a variable value adjusted for each content so that the entire content is displayed in the display 1004 with a touch panel.

  When the contact position of the contact object with respect to the touch panel display 1004 is detected, the operation information generation unit 104 generates operation information based on information acquired from the touch panel display 1004. Here, the information acquired from the display 1004 with a touch panel includes coordinate information representing a contact position in the display area of the display 1004 with a touch panel. The operation information is information representing a user operation instruction for the content being displayed.

  Specifically, when the operation information generation unit 104 determines that the time series of the acquired coordinate information represents an operation for drawing handwritten information to be superimposed on the displayed content, these coordinates are displayed. Operation information including the locus represented by the information as handwritten information is generated. For example, the operation information generation unit 104 determines that it is an input operation for handwritten information when the time series of the acquired coordinate information represents a drag operation (an operation to move the display up / down / left / right while touching the display). Also good.

  In addition, when the operation information generation unit 104 determines that the time series of the acquired coordinate information represents an operation instructing to change the display magnification of the content for inputting handwritten information to be superimposed on the content Then, operation information indicating a display magnification change instruction for inputting handwritten information is generated. For example, the operation information generation unit 104 changes the display magnification for inputting handwritten information when the time series of the acquired coordinate information represents a long press operation (operation of touching one point for a predetermined time or more). It may be determined that it is an instruction. In this case, the operation information generation unit 104 may generate operation information including the coordinates of the long-pressed point as an instruction to change the display magnification centered on the long-pressed point.

  As described above, the operation information generation unit 104 discriminates various operation events based on the time series of the acquired coordinate information, and includes information representing the operation content associated with the discriminated operation event in advance and related coordinate information. Generate operation information. For example, when the time series of the coordinate information to be acquired represents a tap operation (an operation that gently taps on the display), the operation information generation unit 104 displays operation information indicating an instruction to return to the display magnification at the time of viewing content after inputting handwritten information. It may be generated. In addition, the operation information generation unit 104 may generate operation information indicating an instruction to change the content to be displayed and operation information indicating an instruction to end the display of the content based on the time series of the acquired coordinate information.

  When the operation information is generated by the operation information generation unit 104, the contact object determination unit 105 determines the type of the contact object that has touched the display with touch panel 1004 when the operation information is generated.

  For example, the contact object determination unit 105 may determine the type of the contact object based on the type of technology used for detecting the contact position of the contact object in the display 1004 with a touch panel. For example, the contact object determination unit 105 may determine that the contact object is a finger of a hand when the contact position is detected by the capacitance method. Further, the contact object determination unit 105 may determine that the contact object is a touch pen when the contact position is detected by the electromagnetic induction method. In addition, when the contact position is detected by the resistive film method, the contact object determination unit 105 acquires information representing the ground contact area between the conductive thin films, and the type of the contact object based on the acquired ground contact area. (Such as a finger or a touch pen) may be determined.

  When the operation information representing the display magnification change instruction for inputting the handwritten information to be superimposed on the content is generated, the display magnification determining unit 106 is predicted to be input after that, and the size of the unit area of the handwritten information predicted to be input thereafter Is calculated based on the type of the contact object. Then, the display magnification determining unit 106 determines an input display magnification that is a display magnification when inputting handwritten information, based on the calculated handwritten information size predicted value.

  For example, the display magnification determining unit 106 may store a handwritten information size predicted value predetermined for each type of contact object in the storage device 1005 as a handwritten information size predicted value file. In this case, it is preferable that a larger value of the handwritten information size predicted value is determined in advance for a contact object that is predicted to have a larger area in contact with the touch panel-equipped display 1004 when handwritten information is input. In other words, it is preferable that a larger value of the handwritten information size predicted value is determined for a contact object that is predicted to have a thicker drawing line constituting the handwritten information. For example, a case where handwritten information is assumed to represent characters will be described. In this case, the size of the unit area of handwritten information is the size of one handwritten character. Then, the display magnification determination unit 106 creates a handwritten information size predicted value file in which the size of one handwritten character with a finger of a hand is 6 cm square and the size of one handwritten character with a touch pen is 3 cm square. Alternatively, it may be stored in the storage device 1005 in advance.

  Further, the display magnification determination unit 106 may adjust the handwritten information size predicted value obtained as described above according to the usage state of the content display device 1. Here, the usage state of the content display device 1 affects the size of the unit area of the handwritten information, such as when the content display device 1 is about to input handwritten information while being held by the user with one hand. Refers to usage status. In this case, for example, the display magnification determination unit 106 may estimate the usage state of the content display device 1 by detecting shaking of the content display device 1 using various sensors. For example, if the content display device 1 is held with one hand, it is considered that the screen of the display 1004 with a touch panel is not fixed and unstable. Therefore, in this case, the display magnification determination unit 106 may perform adjustment to increase the handwritten information size predicted value by a predetermined ratio.

  Further, the display magnification determining unit 106 determines the input display magnification based on the handwritten information size predicted value thus obtained. For example, a case where handwritten information is assumed to represent characters will be described. In this case, the handwritten information size predicted value is a predicted value of the size of one character as a unit region of handwritten characters according to the type of the contact object. At this time, the display magnification determining unit 106 may determine the input display magnification based on the handwritten information size prediction value, the browsing display magnification, and the readable character size that can be recognized by the browsing display magnification. Here, the browsing display magnification is the display magnification of the content before scaling according to the input display magnification. That is, the browsing display magnification can be said to be the display magnification of the content at the time when an operation representing a display magnification change instruction for inputting handwritten information is performed. The readable character size refers to the size of an area of one character included in the content being displayed at the browsing display magnification. For example, the display magnification determination unit 106 may obtain the size as a readable character size by recognizing a region of one character in the image in the display region. Note that the display magnification determining unit 106 may use the size of the largest character area as the readable character size when the content being displayed at the browsing display magnification includes a plurality of sizes of characters.

  At this time, the display magnification determination unit 106 may obtain the input display magnification based on the equations (a) and (b) shown in FIG.

  As described above, the display magnification determination unit 106 sets the display magnification (input display magnification) when inputting handwritten information based on the handwritten information size prediction value predicted according to the type of the contact object. Here, as the handwritten information size predicted value, a larger value is predicted for a contact object that is predicted to have a thicker drawing line constituting the handwritten information. Then, the display magnification determination unit 106 sets the input display magnification larger for a contact object predicted to have a thicker drawing line. Then, the larger the input display magnification, the higher the reduction ratio when returning to the browsing display magnification after inputting handwritten information. Then, the higher the reduction ratio when returning to the browsing display magnification, the higher the thinning ratio of the drawing lines constituting the handwritten information. Here, the thinning rate refers to the ratio of the drawing line thickness after returning to the browsing display magnification with respect to the drawing line thickness at the input display magnification. In this way, handwritten information composed of thicker drawing lines is reduced at a higher thinning rate when it is returned to the viewing display magnification by being input in the content displayed at a larger input magnification. It becomes. Thereby, handwritten information at the time of returning to the display magnification at the time of browsing is displayed so that it can be recognized without being crushed.

  Furthermore, when the handwritten information represents a character and the display magnification at the time of input is obtained based on the expressions (a) and (b) shown in FIG. When the handwritten character input with the size corresponding to the information size prediction value is returned to the browsing display magnification, the handwritten character is displayed in substantially the same size as the readable character size in the browsing display magnification. Therefore, handwritten characters composed of thicker drawing lines are input in content that is displayed at a larger input magnification, so that the readable character size can be reduced at a higher thinning rate when the browsing magnification is restored. Reduced to Thereby, the handwritten character at the time of returning to the browsing display magnification is displayed in an appropriate size so that it can be read without being crushed.

  As described above, the display magnification determination unit 106 displays the handwritten information so that the handwritten information can be recognized when the display magnification is returned to the browsing display magnification based on the estimated handwritten information size predicted value according to the type of the contact object. It is possible to set the display magnification when inputting.

  The display control unit 103 controls the content output unit 102 to output the content represented by the information acquired by the content acquisition unit 101.

  In addition, when the operation information generated by the operation information generation unit 104 is a display magnification change instruction for inputting handwritten information, the display control unit 103 determines the content being displayed by the display magnification determination unit 106. The content output unit 102 is notified to rescale and re-output at the input display magnification.

  Further, when the operation information generated by the operation information generation unit 104 represents handwritten information to be superimposed on the content being displayed, the display control unit 103 superimposes the handwritten information on the content being displayed and re-outputs it. Notify the content output unit 102.

  In addition, when the operation information generated by the operation information generation unit 104 indicates the end of content display, the display control unit 103 notifies the content output unit 102 to end content output.

  In addition, when the operation information generated by the operation information generation unit 104 represents another instruction for the content being displayed, the display control unit 103 outputs a content that has been processed based on the instruction. 102 is notified.

  The display control unit 103 also mediates data transfer between the functional blocks.

  The operation of the content display device 1 configured as described above will be described with reference to the flowchart of FIG.

  First, the content acquisition unit 101 acquires information representing content to be displayed on the touch panel-equipped display 1004 (Yes in step S1).

  For example, the content acquisition unit 101 may acquire information representing the content selected by the user's contact operation from the content list shown on the display with touch panel 1004. The information representing the content may be, for example, a file path indicating the storage location of the content.

  If the content represented by the acquired information is not stored in the specified storage location (No in step S1), the content acquisition unit 101 notifies the user that there is no content and executes step S1 again. To do.

  Next, the display control unit 103 notifies the content output unit 102 to output the content represented by the information acquired by the content acquisition unit 101 to the display 1004 with a touch panel (step S2). At this time, if the display magnification determining unit 106 determines the input display magnification, the display control unit 103 notifies the content output unit 102 to output the content scaled to the input display magnification. If the display magnification is not designated by the display magnification determining unit 106, the content output unit 102 displays the content at the initial magnification. For example, when “full size” is set as the initial magnification, the initial magnification is 100%. Further, when “display according to screen size” is set as the initial magnification, the magnification of the screen size with respect to the size of the original size content is calculated as the initial magnification.

  Next, the operation information generation unit 104 determines whether there is a user operation on the display 1004 with a touch panel. That is, the operation information generation unit 104 determines whether or not a contact object has touched the display 1004 with a touch panel (step S3).

  If it is determined that there is no user operation, the operation of the content display device 1 returns to step S2 and waits for the user operation.

  On the other hand, if it is determined that there is a user operation, the operation information generation unit 104 generates operation information based on the coordinate information of the contact position obtained from the touch panel-equipped display 1004 (step S4).

  For example, when the contact position by the contact object is detected at the same point for a predetermined time or more, the operation information generation unit 104 generates operation information indicating an instruction to change the display magnification for inputting handwritten information. In addition, for example, when it can be regarded as a drag operation in which the time series of the contact position by the contact object is a continuous line, the operation information generation unit 104 represents a trajectory of the drag operation to be superimposed on the displayed content. Operation information including handwritten information is generated.

  Next, the operation information generation unit 104 determines whether or not the operation information generated in step S4 is an instruction to change the display magnification for inputting handwritten information to be superimposed on the content being displayed (step S5). ).

  If it is determined in step S5 that the instruction is to change the display magnification for inputting handwritten information, the contact object determination unit 105 determines the type of the contact object that has touched the display with touch panel 1004 in step S3 (step S6). ).

  For example, as described above, the contact object determination unit 105 may determine the type of the contact object based on the type of technology in which the display with touch panel 1004 detects the contact position of the contact object. Specifically, the contact object determination unit 105 determines that the contact object is a finger if the contact position is detected by the capacitance method. Further, the contact object determining unit 105 determines that the contact object is a touch pen when the contact position is detected by the electromagnetic induction method. Further, when the contact position is detected by the resistive film method, the contact object determination unit 105 may determine whether the contact object is a finger or a touch pen based on the ground contact area.

  Next, the display magnification determination unit 106 determines the input display magnification based on the handwritten information size prediction value corresponding to the type of the contact object (step S7). Details of the operation in step S7 will be described later.

  Next, the display control unit 103 notifies the content output unit 102 to rescale and redisplay the content at the input display magnification determined in step S7 (step S8).

  Then, the operation of the content display device 1 returns to step S2.

  On the other hand, if it is determined in step S5 that it is not an instruction to change the display magnification for inputting handwritten information, the display control unit 103 determines whether or not the operation information represents an end instruction (step S9).

  Here, if the operation information represents an end instruction, the content display apparatus 1 ends the operation.

  On the other hand, when the operation information does not represent an end instruction, the display control unit 103 notifies the content output unit 102 to output the content processed based on the operation content represented by the operation information (step S10).

  For example, when the operation information represents handwritten information to be superimposed on the content, the display control unit 103 notifies the content output unit 102 to superimpose the handwritten information and re-output the content.

  Then, the operation of the content display device 1 returns to step S2.

  Next, details of the operation in step S7 will be described with reference to FIG. In the example of FIG. 5, it is assumed that characters are input as handwritten information. In addition, it is assumed that a finger and a touch pen are assumed as the types of contact objects. The storage device 1005 stores a handwritten information size prediction value file in advance. The storage device 1005 predicts the size of the area of one handwritten character by the finger of the hand and the size of the area of one handwritten character by the touch pen. It is assumed that the predicted value is recorded.

  Here, first, the display magnification determination unit 106 uses the display magnification at the time of execution of step S7 (browsing display magnification) to display the size of one character area displayed in the display area of the content being displayed (readable characters). Size) is acquired (step S21).

  At this time, if a plurality of sizes of characters are included in the display area of the content being displayed at this time, for example, the display magnification determination unit 106 determines the size of the largest character area as the readable character size. It is good. Note that the display magnification determination unit 106 may store a readable character size associated with the browsing display magnification in the storage device 1005 in advance in the case where no character is displayed in the content display area. .

  Next, the display magnification determination unit 106 determines whether the type determined in step S6 is a finger or a touch pen (step S22).

  Here, when the type of the contact object is a touch pen, the display magnification determination unit 106 acquires a size prediction value of a region of one character of a handwritten character by the touch pen from the handwriting information size prediction value file (step S23).

  On the other hand, when the type of the contact object is a finger, the display magnification determination unit 106 acquires a predicted size value of the area of one character of a handwritten character by the finger from the handwritten information size predicted value file (step S24).

  Next, the display magnification determination unit 106 calculates the readable character size at the original size (display magnification 100%) by using the current display magnification (display magnification during browsing) and the readable character size. Then, the display magnification determination unit 106 calculates the display magnification for inputting handwritten information using the readable character size at the full size and the handwritten information size predicted value acquired in step S23 or S24 (step S25). ).

  This is the end of the detailed description of the display magnification determination operation in step S7.

  Next, an example of operation when a tablet terminal is applied to the content display device 1 that operates as described above will be specifically described with reference to FIGS. 4 and 5. A tablet terminal is a portable information terminal that operates by a touch operation on a display screen. Here, it is assumed that the user displays a created presentation document on the display screen of the tablet terminal and inputs handwritten characters in a superimposed manner.

  The tablet terminal has a hardware configuration as shown in FIG. It is assumed that the storage device 1005 of the tablet terminal stores content representing a presentation document. In addition, it is assumed that the display 1004 with a touch panel of the tablet terminal is a device that can detect the contact position of the contact object by both the capacitance method and the electromagnetic induction method. Further, it is assumed that either a touch pen or a finger of a hand is assumed as a contact object that contacts the display 1004 with a touch panel of the tablet terminal. In addition, the storage device 1005 of the tablet terminal stores a handwritten information size predicted value file in which a predicted value of the area size of one character of each handwritten character predicted to be input using the touch pen and the finger of the hand is recorded. It shall be.

  Here, first, when a contact operation for designating a presentation manuscript file stored in the storage device 1005 of the tablet terminal is performed, the content acquisition unit 101 controls display of information indicating the storage destination of the designated presentation manuscript file. It passes to the part 103 (Yes in step S1).

  Next, the display control unit 103 notifies the content output unit 102 of the presentation document file received from the content acquisition unit 101. Then, the content output unit 102 displays the presentation document file at the initial magnification. Here, it is assumed that “80%” according to the screen size of the display 1004 with a touch panel is set as the initial magnification. Then, the content output unit 102 outputs the presentation document file to the display 1004 with a touch panel at a display magnification “80%” (step S2).

  At this time, it is assumed that the character in the presentation document displayed at 80% is legible for the user, and the display magnification at the time of browsing has not been changed.

  Next, when a contact operation is performed by continuously pressing a certain portion of the screen of the display with touch panel 1004 with a touch pen for about 3 seconds (Yes in step S3), the operation information generation unit 104 causes the presentation document being displayed to be displayed in a superimposed manner. Operation information indicating a display magnification change instruction for inputting handwritten information is generated (step S4).

  Next, since operation information indicating a display magnification change instruction for inputting handwritten information is generated in step S4 (Yes in step S5), the contact object determination unit 105 determines the type of the contact object. Here, based on the fact that the type of technology used for detecting the contact position in step S3 is the electromagnetic induction method, the contact object determination unit 105 determines that the contact object is a touch pen (step S6).

  Next, the display magnification determination unit 106 acquires 0.5 cm square as the size of one character area (readable character size) in the presentation document being displayed at a display magnification of 80% (step S21).

  Next, the display magnification determination unit 106 acquires, from the handwritten information predicted value file, the predicted value of the handwritten character size by the touch pen that is the type determined in step S5. Here, it is assumed that 3 cm square is acquired as the handwritten character size prediction value by the touch pen (step S23).

  Next, the display magnification determination unit 106 obtains the input display magnification that is the display magnification of the content when handwritten information is input, using the calculation formula shown in FIG. Specifically, the display magnification determination unit 106 first displays the browsing display magnification (80%, 0.8 here) and the readable character size (0.5 here) based on the calculation formula of FIG. Centimeter square) to calculate the full-size readable character size. In this case, 0.625 cm square is calculated as a full-size readable character size. Then, based on the calculation formula of FIG. 3B, the display magnification determination unit 106 reads the actual size readable character size (0.625 square here) and the predicted value of the handwritten character size with the touch pen (here 3 cm square). ) Is used to calculate the input display magnification. Here, 4.8 (480%) is calculated as the input display magnification (step S25).

  Next, the display control unit 103 notifies the content output unit 102 to redisplay the presentation document being displayed at a display magnification of 480% (step S8).

  Next, the content output unit 102 re-outputs the presentation document to the display 1004 with a touch panel at a display magnification of 480% around the point where the user performs a touch operation for 3 seconds or more (step S2).

  Next, when a drag operation is performed on the screen of the display 1004 with a touch panel (Yes in step S3), the operation information generation unit 104 includes handwritten information representing a drag operation trajectory to be superimposed on the displayed presentation document. Operation information is generated (step S4). At this time, it is assumed that the size of one character area of the handwritten information represented by the locus of the drag operation is 3 centimeters square as predicted.

  Next, since the operation information representing the handwritten information is generated in step S4 (No in step S5, No in step S9), the display control unit 103 re-outputs the content on which the handwritten information is superimposed. The output unit 102 is notified (step S10).

  Next, the content output unit 102 superimposes handwritten information on the presentation document being displayed at a display magnification of 480% and re-outputs it on the touch panel-equipped display 1004 (step S2).

  Next, when a tap operation is performed on the screen of the display 1004 with a touch panel (Yes in step S3), the operation information generation unit 104 represents an instruction to return the display magnification of the presentation document being displayed to the display magnification during browsing. Operation information is generated (step S4).

  Next, since the operation information representing the instruction to return to the browsing display magnification is generated in step S4 (No in step S5, No in step S9), the display control unit 103 superimposes handwritten information at 480%. The content output unit 102 is notified to re-output the presentation document being displayed at the browsing display magnification of 80% (step S10).

  Next, the content output unit 102 re-outputs the presentation document on which the handwritten information is superimposed at a display magnification of 80% to the display with touch panel 1004 (step S2). That is, the content output unit 102 performs a reduction (thinning) process on handwritten information input at 3 cm square per character at a display magnification of 480% so that it is displayed at 0.5 cm square per character, and has a touch panel. The image is displayed again on the display 1004. Thereby, even after returning to the display magnification at the time of browsing, the characters of the handwritten information are displayed so as to be legible for the user.

  Above, description of the specific example of operation | movement at the time of applying a tablet terminal to the content display apparatus 1 is complete | finished.

  As described above, in this tablet terminal, when the display 1004 with a touch panel while the presentation document is displayed is pressed for a predetermined time or more by the user, the presentation document is enlarged to a display magnification of 480% suitable for inputting handwritten characters with the touch pen. To do. The tablet terminal displays the presentation manuscript at the original browsing display magnification (80%) after superimposing and displaying the handwritten characters input at the input display magnification. Then, the line width of the handwritten character is reduced in accordance with the magnification in the original presentation document with the display magnification (80%) at the time of browsing, and the handwritten character is displayed in a legible manner without being crushed.

  Next, effects of the first exemplary embodiment of the present invention will be described.

  The content display device as the first embodiment of the present invention sets an appropriate display magnification at the time of handwritten information input so that the handwritten information is displayed in a recognizable manner when the display magnification is returned to the content browsing time. can do.

  The reason will be described. In a content display device that acquires handwritten information via a device that detects a contact position by a contact object, the thickness of the drawing line constituting the handwritten information differs depending on the type of contact object (for example, a finger or a touch pen). It is done. Therefore, in such an apparatus, it is considered that the size of the unit area of handwritten information varies depending on the thickness of the drawing line. Therefore, in the content display device according to the first embodiment of the present invention, the contact object determination unit detects the type of the contact object that has contacted the input device, and the display magnification determination unit predicts the type according to the type of the contact object. The display magnification at the time of handwriting information input is set based on the predicted value of the size of the unit area of the handwritten information. Accordingly, the content display device according to the first embodiment of the present invention can display the handwritten information so that the handwritten information can be recognized even after the handwritten information is input and when the display magnification is restored to the content browsing time. It is.

(Second Embodiment)
Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Note that, in each drawing referred to in the description of the present embodiment, the same reference numerals are given to the same configuration and steps that operate in the same manner as in the first embodiment of the present invention, and the detailed description in the present embodiment. Description is omitted.

  First, FIG. 6 shows a functional block configuration of a content display device 2 as a second embodiment of the present invention. The hardware configuration of the content display device 2 can be the same as the configuration of the content display device 1 as the first embodiment of the present invention shown in FIG. Description is omitted.

  In FIG. 6, the content display device 2 includes a display magnification determination unit 206 instead of the display magnification determination unit 106 with respect to the content display device 1 as the first embodiment of the present invention, and further includes a history storage unit. 207 is different. Here, the history storage unit 207 includes a CPU 1001 that reads a computer program module and data stored in the ROM 1003 or the storage device 1005 into the RAM 1002 and executes them, and a storage device 1005.

  When the operation information representing handwritten information to be superimposed and displayed on the content is generated by the operation information generating unit 104, the history storage unit 207 displays a history of information in which the handwritten information size actual value is associated with the type of the contact object. accumulate. Here, the measured value of handwritten information size represents the size of a unit area of handwritten information that is actually input in order to be superimposed on the displayed content. For example, when it is assumed that the handwritten information is a character, the history storage unit 207 may obtain a measured value of the handwritten information size by recognizing a region of one handwritten character. The type of the contact object associated with the actual measurement value of the handwritten information size is the type of the contact object used when the input operation of the handwritten information is performed.

  The display magnification determining unit 206 is configured in the same manner as the display magnification determining unit 106 in the first embodiment of the present invention, but the method for obtaining the handwritten information size predicted value is different. The display magnification determination unit 206 acquires the history of the handwritten information size actual measurement value associated with the type of the contact object determined by the contact object determination unit 105 from the history storage unit 207. Then, the display magnification determination unit 206 obtains a handwritten information size predicted value based on the acquired history. For example, the display magnification determination unit 206 may use the average value of the handwritten information size actual measurement values associated with the contact object type as the handwritten information size predicted value.

  The operation of the content display device 2 configured as described above will be described with reference to FIGS.

  First, the content display device 2 operates in the same manner as the content display device 1 as the first embodiment of the present invention from step S1 to S4, and generates operation information.

  Next, the content display device 2 performs the same contact object determination processing (step S6) as that of the content display device 1 according to the first embodiment of the present invention before branching according to the contents of the operation information (step S5). To run. This is because the content display device 2 uses the type of the contact object in any processing after branching.

  In step S5, when it is determined that the content of the operation information is a display magnification change instruction for inputting handwritten information, the display magnification determination unit 206 refers to the history storage unit 207 to determine the type of the contact object. A corresponding handwritten information size prediction value is obtained. Then, the display magnification determining unit 206 determines the input display magnification based on the handwritten information size predicted value (step S31). Details of the operation of step S31 will be described later.

  Next, when the input display magnification is determined, the content display device 2 executes step S8 in the same manner as the content display device 1 according to the first embodiment of the present invention, and then performs the processing from step S2. Try again. Thereby, the content is re-displayed at the input display magnification determined based on the history of the handwritten information size actual measurement value associated with the type of the contact object.

  On the other hand, in step S5, when the content of the operation information represents handwritten information to be superimposed and displayed on the displayed content (No in step S5, No in step S9), the display control unit 103 adds the handwritten information to the displayed content. Is notified to the content output unit 102 so as to be superimposed (step S10).

  Next, the history accumulating unit 207 stores the superimposed handwritten information size actual measurement value and the contact object type determined in step S6 in association with each other (step S32).

  Then, the operation of the content display device 2 returns to step S2. As a result, the handwritten information is superimposed on the content displayed at the input display magnification and redisplayed.

  Next, details of the operation in step S31 will be described with reference to FIG. In the example of FIG. 8, it is assumed that characters are input as handwritten information. In addition, it is assumed that a finger and a touch pen are assumed as the types of contact objects. In addition, the history storage unit 207 already has an actual measurement value of the size of one character area of the handwritten character associated with the type “finger” and 1 of the handwritten character associated with the type “touch pen”. It is assumed that the measured value of the size of the character area is accumulated.

  Here, first, the display magnification determination unit 206 operates in the same manner as the display magnification determination unit 106 in the first embodiment of the present invention from step S21 to S22, so that the contact object is a finger or a touch pen. The process branches depending on whether

  Here, when the type of the touching object is a touch pen, the display magnification determination unit 206 refers to the history storage unit 207 to measure the actual area size of one character of the handwritten character associated with the type “touch pen”. And the handwritten information size prediction value is determined based on the acquired actual measurement value (step S41). For example, the display magnification determination unit 206 may use the average value of the acquired actual measurement values as the handwritten information size predicted value.

  On the other hand, when the type of the contact object is a finger, the display magnification determination unit 206 refers to the history storage unit 207 to measure the area size of one character of the handwritten character associated with the type “hand finger”. A value is acquired, and a handwritten information size prediction value is determined based on the acquired actual measurement value (step S42). For example, the display magnification determination unit 206 may use the average value of the acquired actual measurement values as the handwritten information size predicted value.

  Then, the display magnification determination unit 206 determines the input display magnification by executing step S25 in the same manner as the display magnification determination unit 106 in the first embodiment of the present invention.

  This is the end of the detailed description of the display magnification determination operation in step S31.

  Next, the effect of the second exemplary embodiment of the present invention will be described.

  The content display device as the second embodiment of the present invention has an appropriate display magnification at the time of handwritten information input such that handwritten information is displayed in a recognizable manner when the display magnification at the time of content browsing is restored. It can be set with high accuracy.

  The reason is that the display magnification determining unit includes a history accumulating unit that accumulates the size of the unit area of the handwritten information actually input (actually measured handwritten information size) and the type of the contact object in association with each other. This is because a predicted value (handwritten information size predicted value) of the size of the unit area of the handwritten information corresponding to the type of the contact object is obtained based on the measured handwritten information size. As a result, the handwritten information size predicted value corresponding to the type of the contact object reflects the operation results of the user. Therefore, the content display device as the second exemplary embodiment of the present invention can more accurately obtain the input display magnification based on the handwritten information size predicted value predicted more accurately according to the type of the contact object. This is because it becomes possible.

(Third embodiment)
Next, a content display system 3 including a server and a terminal will be described in detail with reference to the drawings as a third embodiment of the present invention. Note that, in each drawing referred to in the description of the present embodiment, the same configurations and steps that operate in the same manner as in the first and second embodiments of the present invention are denoted by the same reference numerals, and the present embodiment. The detailed description in is omitted.

  First, FIG. 9 shows a hardware configuration of each device constituting the content display system 3. In FIG. 9, a terminal 31 is configured by a computer device including a network interface 1006 in addition to the same components as those of the computer device configuring the content display device 1 according to the first embodiment of the present invention. The server 32 is configured by a computer device including a CPU 2001, a RAM 2002, a ROM 2003, a storage device 2005 such as a hard disk device, and a network interface 2006. The storage device 1005 and the storage device 2005 of each computer device store various computer program modules and various data for operating the terminal 31 and the server 32 as the terminal and server in the content display system of the present invention, respectively.

  Next, functional blocks of the content display system 3 will be described with reference to FIG. In FIG. 10, the content display system 3 includes a terminal 31 and a server 32. The terminal 31 and the server 32 are communicably connected via a network constituted by the Internet, a LAN (Local Area Network), a public line network, a wireless communication network, or a combination thereof. In FIG. 10, one terminal 31 and one server 32 are shown, but the number of terminals 31 and servers 32 provided in the present invention is not limited.

  The terminal 31 includes an input information transmission unit 313, a content acquisition unit 311, and a content output unit 312. Further, the server 32 includes a display control unit 323, an operation information generation unit 324, a contact object determination unit 325, a display magnification determination unit 206, and a history storage unit 207.

  Here, the input information transmission unit 313, the content acquisition unit 311, and the content output unit 312 read the CPU program module and data stored in the ROM 1003 or the storage device 1005 into the RAM 1002 and execute them, a display 1004 with a touch panel, and The network interface 1006 is configured. The display control unit 323 includes a CPU 2001 that reads a computer program module and data stored in the ROM 2003 or the storage device 2005 into the RAM 2002 and executes them, and a network interface 2006. The operation information generation unit 324 and the contact object determination unit 325 are configured by a CPU 2001 that reads a computer program module and data stored in the ROM 2003 or the storage device 2005 into the RAM 2002 and executes them. In addition, the hardware configuration which comprises each functional block of the terminal 31 and the server 32 is not limited to the above-mentioned configuration.

  First, each functional block of the terminal 31 will be described.

  The input information transmission unit 313 transmits information acquired through the display with touch panel 1004 to the server 32. Specifically, the input information transmission unit 313 transmits information representing the contact position of the contact object detected by the display with touch panel 1004 to the server 32. Further, the input information transmission unit 313 may transmit information indicating the type of technology used when the contact position of the contact object is detected by the display with touch panel 1004 to the server 32.

  The content acquisition unit 311 is configured similarly to the content acquisition unit 101 in the first and second embodiments of the present invention, and further transmits information representing the acquired content to the server 32. Note that when the content acquisition unit 311 acquires information representing content stored in the storage device 1005 of the terminal 31, the content acquisition unit 311 may transmit data of the content to the server 32. Alternatively, the content acquisition unit 311 displays the content list stored in the storage device 2005 of the server 32 on the display 1004 with a touch panel to identify the content selected by the contact operation (such as a file path in the server 32). May be transmitted to the server 32 for identifying the content.

  The content output unit 312 is different from the content output unit 102 according to the first and second embodiments of the present invention in that content output processing is performed based on information received from the display control unit 323 of the server 32. . Specifically, the content output unit 312 receives content and display magnification from the display control unit 323 of the server 32. Then, the content output unit 312 outputs the content to the display 1004 with a touch panel at the received display magnification.

  Next, each functional block of the server 32 will be described.

  The display control unit 323 is configured in the same manner as the display control unit 103 in the first and second embodiments of the present invention, and other function blocks (operation information generation unit 324, contact object determination unit 325, It mediates transmission and reception of data between the display magnification determination unit 206 and the history storage unit 207) and the terminal 31. As a result, the display control unit 323 notifies the content output unit 312 of the terminal 31 to display the content received from the content acquisition unit 311 of the terminal 31 at the display magnification determined by the display magnification determination unit 206.

  The operation information generation unit 324 generates operation information based on information received from the input information transmission unit 313 of the terminal 31 via the display control unit 323. Here, the information received from the input information transmission unit 313 of the terminal 31 is information obtained from the touch panel-equipped display 1004 in the terminal 31. And the operation information generation part 324 produces | generates operation information based on the information obtained from the display 1004 with a touch panel similarly to the operation information generation part 104 in the 1st and 2nd embodiment of this invention.

  The contact object determination unit 325 determines the type of the contact object that has touched the display with touch panel 1004 in the terminal 31 based on information received from the input information transmission unit 313 of the terminal 31 via the display control unit 323. For example, when the information received from the input information transmission unit 313 of the terminal 31 includes information indicating the type of technology in which the contact of the contact object is detected in the display with touch panel 1004 of the terminal 31, the contact object determination unit 325 The type of the contact object is determined based on the type of technology that detected As described above, for example, when the received information includes information indicating that contact is detected by the capacitance method, the contact object determination unit 325 determines that the contact object is a finger of a hand. Also good. Further, the contact object determination unit 325 may determine that the contact object is a touch pen when the received information includes information indicating that contact is detected by the electromagnetic induction method. Further, when the received information includes information indicating that contact is detected by the resistive film method and information indicating the ground contact area between the conductive thin films, the contact object determination unit 325 is based on the ground contact area. The type of contact object (such as a finger or a touch pen) may be determined.

  The display magnification determination unit 206 and the history storage unit 207 are configured in the same manner as each functional block in the second embodiment of the present invention. Thereby, if the server 32 is connected to the plurality of terminals 31, the history storage unit 207 stores the handwritten information actual measurement values in the plurality of terminals 31.

  The operation of the content display system 3 configured as described above will be described with reference to FIG. In FIG. 11, the flow chart on the left represents the operation of the terminal 31, the flow diagram on the right represents the operation of the server 32, and the broken arrows connecting the left and right represent the flow of data.

  First, the terminal 31 operates in the same manner as the content display device 1 as the first exemplary embodiment of the present invention from step S1 to S3, thereby detecting a touch operation on the display with touch panel 1004 by the user (in step S3). Yes).

  Next, the input information transmission unit 313 transmits information obtained from the touch panel-equipped display 1004 to the server 32 (step S51). For example, the input information transmitting unit 313 transmits the coordinate information of the contact position detected by the touch panel display 1004 and the information indicating the type of technology used for detecting the contact position to the server 32. Also good.

  Next, in the server 32, the operation information generation unit 324 generates operation information based on the information received from the terminal 31 (step S52). As in the case of the first embodiment of the present invention, the operation information generated at this time is “display magnification change instruction for inputting handwritten information to be superimposed on content” and “handwriting to be superimposed on content” “Information”, “content display end instruction”, “instruction to return to browsing display magnification”, and the like. Further, the operation information includes coordinate information representing a related contact position in addition to information representing these instruction contents.

  Next, the contact object determination unit 325 determines the type of the contact object based on the information received from the terminal 31 (step S53). For example, as described above, when the contact object determination unit 325 receives information indicating the type of technology used for detection of the contact position from the terminal 31, the contact object determination unit 325 is based on the information indicating the type of technology. It may be determined whether is a finger or a touch pen.

  Next, when the operation information generated in step S52 is a display magnification change instruction for inputting handwritten information (Yes in step S5), the server 32 is the same as in the second embodiment of the present invention. Step S31 and Step S8 are executed. As a result, the server 32 determines the display magnification at the time of input, and notifies the terminal 31 to rescale and re-output the content at the determined display magnification.

  On the other hand, when the operation information generated in step S52 represents handwritten information to be superimposed and displayed on the content (No in step S5), the server 32 performs steps S10, S32 is executed. Thereby, the server 32 notifies the terminal 31 to superimpose handwritten information on the content displayed at the input display magnification and re-output. Then, the server 32 stores the handwritten information size actual measurement value and the type of the contact object in association with each other.

  In the terminal 31 that has received the display content indicating the scaling of the content or the superimposition of handwritten information (step S54), the content output unit 312 re-outputs the content according to the received display content (step S2).

  When the operation information generated in step S52 is an end instruction, the display control unit 323 notifies the terminal 31 to end the display of the content. In FIG. 11, illustration of the end operation is omitted.

  Above, description of operation | movement of the content display system 3 is complete | finished.

  Next, effects of the third exemplary embodiment of the present invention will be described.

  The content display system as the third exemplary embodiment of the present invention further has an appropriate display magnification at the time of inputting handwritten information such that the handwritten information is displayed in a recognizable manner when the display magnification at the time of content browsing is restored. It can be set with high accuracy.

  The reason is that the server includes a history storage unit that stores the size of the unit area (handwritten information size measured value) of the actually input handwritten information and the type of the contact object in association with each other. As a result, the history storage unit stores the actually-written handwritten information size actually input value in one or more terminals in association with the type of the contact object. Then, the display magnification determination unit obtains a predicted value (handwritten information size predicted value) of the unit area of the handwritten information according to the type of the contact object based on the actual measured value of the handwritten information size in one or more terminals. Because. As a result, the handwritten information size predicted value corresponding to the type of the contact object reflects the operation results of one or more users. Therefore, the content display system as the third exemplary embodiment of the present invention can obtain the input display magnification with higher accuracy based on the handwritten information size predicted value predicted with higher accuracy according to the type of the contact object. This is because it becomes possible.

  In addition, the content display system as the third embodiment of the present invention has an appropriate display magnification at the time of inputting handwritten information such that the handwritten information is displayed in a recognizable manner when the display magnification at the time of content browsing is restored. Even when there is little input result of handwritten information in the terminal, it can be set with high accuracy.

  The reason is that a history storage unit is provided in the server. Thereby, the terminal to which the display magnification change instruction for inputting handwritten information is input has a corresponding type in another terminal even when the input result of the handwritten information by the corresponding type of contact object is small in the own device. This is because the handwritten information size measured value by the contact object can be used, and the handwritten information size predicted value can be obtained.

  Also, the content display system as the third exemplary embodiment of the present invention can reduce the processing load on the terminal by executing content display control on the server. As a result, it is possible to use the content display system as the third embodiment of the present invention even with a terminal having low processing capability.

(Fourth embodiment)
Next, the content display system 4 as the 4th Embodiment of this invention is demonstrated in detail with reference to drawings. In each drawing referred to in the description of the present embodiment, the same reference numerals are given to the same configuration and steps that operate in the same manner as in the first to third embodiments of the present invention. The detailed description in is omitted.

  First, functional blocks of the content display system 4 will be described with reference to FIG. Note that the hardware configuration of each device constituting the content display system 4 is the same as that of each device constituting the content display system as the third embodiment of the present invention shown in FIG. Detailed description on the form is omitted.

  In FIG. 12, the content display system 4 includes a terminal 41 and a server 42. The terminal 41 and the server 42 are communicably connected via a network constituted by the Internet, a LAN, a public line network, a wireless communication network, or a combination thereof. In FIG. 12, one terminal 41 and one server 42 are shown, but the number of terminals 41 and servers 42 provided in the present invention is not limited.

  The terminal 41 is different from the content display device 1 according to the first embodiment of the present invention in that it includes a display magnification determination unit 416 instead of the display magnification determination unit 106 and further includes a history transmission / reception unit 418. . The server 42 also includes a history storage unit 427. Here, the history transmission / reception unit 418 constitutes an embodiment of the history transmission unit in the present invention. The display magnification determination unit 416 and the history transmission / reception unit 418 constitute one embodiment of the display magnification determination unit in the present invention. The history transmission / reception unit 418 includes a CPU 1001 that reads a computer program module and data stored in the ROM 1003 or the storage device 1005 into the RAM 1002 and executes them, and a network interface 1006. The history storage unit 427 includes a CPU 2001 that reads a computer program module and data stored in the ROM 2003 or the storage device 2005 into the RAM 2002 and executes the program, and a network interface 2006. In addition, the hardware configuration which comprises each functional block of the terminal 41 and the server 42 is not limited to the above-mentioned configuration.

  First, each functional block of the terminal 41 will be described.

  When the operation information generating unit 104 generates operation information representing handwritten information to be superimposed and displayed on the content, the history transmitting / receiving unit 418 generates a handwritten information size actual measurement value indicating the size of a unit area of the handwritten information, and a contact object. Information associated with the type is transmitted to the server 42.

  Further, the history transmission / reception unit 418 sends, to the server 42, information requesting the history of the handwritten information size actual measurement value associated with the type determined by the contact object determination unit 105 based on the control by the display magnification determination unit 416. Send to. Then, the history transmitting / receiving unit 418 receives information representing the corresponding history from the server 42.

  When the operation information representing the display magnification change instruction for inputting handwritten information is generated by the operation information generation unit 104, the display magnification determination unit 416 is associated with the type determined by the contact object determination unit 105. The history transmitting / receiving unit 418 is controlled to request the server 42 to request a history of the handwritten information size actual measurement value. Then, the display magnification determining unit 416 is based on the history of the handwritten information size actual measurement value received via the history transmitting / receiving unit 418, and indicates the size of the unit area of the handwritten information that is predicted to be input thereafter. Find the predicted value. Then, the display magnification determining unit 416 determines the input display magnification based on the calculated handwritten information size predicted value.

  Next, functional blocks of the server 42 will be described.

  The history accumulating unit 427 accumulates information received from the terminal 41 by associating the handwritten information size actual measurement value with the type of the contact object. At this time, if the server 42 is communicably connected to one or more terminals 41, the history accumulation unit 427 accumulates handwritten information actual measurement values in the plurality of terminals 41.

  Further, the history accumulation unit 427 transmits a history of the handwritten information size actual measurement value associated with the type of the contact object specified in the request from the terminal 41 to the terminal 41.

  The operation of the content display system 4 configured as described above will be described with reference to FIG. In FIG. 13, the flowchart on the left represents the operation of the terminal 41, the flowchart on the right represents the operation of the server 42, and the dashed arrows connecting the left and right represent the data flow.

  First, the terminal 41 operates in the same manner as the content display device 2 as the second embodiment of the present invention from step S1 to S6, thereby generating operation information representing a display magnification change instruction for handwritten information input. The process branches based on whether or not it has been done.

  Here, when the operation information indicating the display magnification change instruction for inputting handwritten information is generated (Yes in step S5), the display magnification determining unit 416 performs the handwriting associated with the type acquired in step S6. A history of actual measured values is requested to the server 42 (step S61).

  Next, the history storage unit 427 of the server 42 transmits a history of handwritten information actual measurement values associated with the type of the contact object specified in the request received from the terminal 41 to the terminal 41 (step S62). .

  Next, in the terminal 41, the display magnification determination unit 416 calculates a handwritten information size predicted value using the received history of the handwritten information actual measurement value. Then, the display magnification determination unit 416 determines the input display magnification based on the calculated handwritten information size predicted value (step S31). Then, the display control unit 103 notifies the content output unit 102 to re-display the content at the determined input display magnification (step S8).

  On the other hand, when the operation information representing the handwritten information to be superimposed on the content is generated (No in step S5), the display magnification determining unit 416 superimposes the handwritten information on the displayed content and re-outputs the content output unit. 102 is notified (step S10).

  Next, the history transmitting / receiving unit 418 associates information that associates the size of the unit area of the handwritten information included in the operation information generated in step S4 with the type of the contact object determined in step S6 in the server 42. It transmits to (step S63).

  In the server 42 that has received these pieces of information, the history storage unit 427 stores information in which the received handwritten information size actual measurement value and the type of contact object are associated (step S64).

  If the operation information generated in step S4 is an end instruction, the terminal 41 ends the operation. In FIG. 13, illustration of the end operation is omitted.

  Above, description of operation | movement of the content display system 4 is complete | finished.

  Next, effects of the fourth exemplary embodiment of the present invention will be described.

  The content display system as the fourth exemplary embodiment of the present invention further has an appropriate display magnification at the time of inputting handwritten information such that the handwritten information is displayed in a recognizable manner when the display magnification at the time of content browsing is restored. It can be set with high accuracy.

  The reason is that the server includes a history storage unit that stores the size of the unit area of the handwritten information actually input (actually measured handwritten information size) and the type of the contact object in association with each other. As a result, the history storage unit stores the actually-written handwritten information size actually input value in one or more terminals in association with the type of the contact object. Then, the display magnification determination unit obtains a predicted value (handwritten information size predicted value) of the unit area of the handwritten information according to the type of the contact object based on the actual measured value of the handwritten information size in one or more terminals. Because. As a result, the handwritten information size predicted value corresponding to the type of the contact object reflects the operation results of one or more users. Therefore, the content display system as the fourth exemplary embodiment of the present invention can obtain the input display magnification with higher accuracy based on the handwritten information size prediction value predicted with higher accuracy according to the type of the contact object. This is because it becomes possible.

  In addition, the content display system as the fourth embodiment of the present invention has an appropriate display magnification at the time of inputting handwritten information such that the handwritten information is displayed in a recognizable manner when the display magnification at the time of content browsing is restored. Even when there is little input result of handwritten information in the terminal, it can be set with high accuracy.

  The reason is that a history storage unit is provided in the server. As a result, the terminal to which the display magnification change instruction for inputting handwritten information is input can be applied to the contact object of the corresponding type in the other terminal even when the input result of the handwritten information by the corresponding type of contact object is small in the own device. This is because the handwritten information size actual measurement value obtained by using can be used, and the handwritten information size predicted value can be obtained.

  In the third and fourth embodiments of the present invention, each of the display control unit, the operation information generation unit, the contact object determination unit, and the display magnification determination unit is based on the processing capability and usage form of the terminal. It can be arranged in any of the server and the terminal. Regardless of whether these units are arranged in the server or the terminal, the third and fourth embodiments of the present invention have the effects described above.

  In the third and fourth embodiments of the present invention, the history storage unit further associates the terminal identification information or the user identification information with the measured handwritten information size and the type of the contact object. May be accumulated. In this case, the display magnification determination unit may acquire the history associated with the corresponding user or terminal from the history of the handwritten information size actual measurement values associated with the type of the contact object. In this case, the display magnification determination unit uses the history of all handwritten information size actual measurement values associated with the type of the corresponding contact object based on information set in advance in the terminal, or the user or the terminal It may be selected whether to use a history of actual values of handwritten information sizes for each.

  Moreover, in each embodiment of this invention, the case where handwritten information mainly represents a character is demonstrated. However, the present invention is not limited to this, and the content display device according to each embodiment of the present invention is also applicable when handwritten information representing information other than characters, such as graphics and symbols, is input. In that case, the content display device as each embodiment of the present invention may use, as a unit region, an area in which drawing lines constituting handwritten information are recognized as being substantially continuous.

  Further, in each embodiment of the present invention, the description has focused on an example in which the contact object determination unit determines the type of the contact object based on the type of technology used for detection of the contact position. Not limited to this, the contact object determination unit in each embodiment of the present invention may determine the type of the contact object based on other information. For example, the contact object determination unit may determine the type of the contact object based on the area of the contact region.

  In each embodiment of the present invention described above, the operation of each device described with reference to each flowchart is stored as a computer program of the present invention in a storage device (storage medium) of the computer device. The computer program may be read and executed by the CPU. In such a case, the present invention is constituted by the code of the computer program or a storage medium.

  Moreover, each embodiment mentioned above can be implemented in combination as appropriate.

  The present invention is not limited to the above-described embodiments, and can be implemented in various modes.

Moreover, although a part or all of said embodiment can be described also as the following additional remarks, it is not restricted to the following.
(Appendix 1)
A content acquisition unit that acquires information representing content to be displayed on the display device;
A content output unit for outputting the content to the display device;
An operation information generation unit that generates operation information based on information acquired via an input device that detects a contact position of a contact object;
A contact object determination unit for determining the type of the contact object;
When operation information representing a display magnification change instruction for inputting handwritten information to be superimposed on the content is generated, handwritten information size prediction representing the size of a unit area of handwritten information predicted to be input thereafter A display magnification determining unit that determines a value based on the type of the contact object, and determines a display magnification at the time of input that is a display magnification at the time of input of the handwritten information, based on the calculated handwritten information size prediction value;
A display control unit for controlling the content output unit to output an image obtained by scaling the content in accordance with the input display magnification;
A content display device comprising:
(Appendix 2)
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing the size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. It further includes a history storage unit for storing,
The display magnification determining unit obtains the handwritten information size predicted value based on a history of the handwritten information size measured value associated with the type of the contact object determined by the contact object determining unit, The content display device according to appendix 1, wherein a display magnification at the time of input is determined.
(Appendix 3)
The content display device according to appendix 1 or appendix 2, wherein the contact object discrimination unit discriminates the type of the contact object based on the type of technology used for detecting the contact position in the input device.
(Appendix 4)
The display magnification determination unit obtains a value obtained by predicting the size of a handwritten character predicted to be input based on the type of the contact object as the handwritten information size predicted value, and the calculated handwritten information size predicted value , Based on the browsing display magnification that is the display magnification of the content before scaling according to the input display magnification and the readable character size in the content displayed at the browsing display magnification. 4. The content display device according to any one of appendix 1 to appendix 3, wherein a display magnification is determined.
(Appendix 5)
A content display system comprising a terminal and a server,
The terminal
A content acquisition unit that acquires information representing content to be displayed on the display device;
An input information transmitting unit that transmits information acquired via an input device that detects a contact position of a contact object to the server;
A content output unit that outputs the content to the display device and outputs an image obtained by scaling the content at a display magnification determined by the server to the display device;
Have
The server
An operation information generation unit that generates operation information based on information received from the input information transmission unit of the terminal;
A contact object determination unit that determines a type of a contact object that has contacted the input device in the terminal, based on information received from the input information transmission unit of the terminal;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing a size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. A history storage unit for storing;
When the operation information indicating the display magnification change instruction for inputting the handwritten information is generated, the handwritten information size predicted value indicating the size of the unit area of the handwritten information predicted to be input thereafter is calculated as the contact. An input time which is a display magnification at the time of input of the handwritten information based on the calculated handwritten information size predicted value associated with the type determined by the object determining unit and based on the calculated handwritten information size predicted value A display magnification determining section for determining a display magnification;
A display control unit for controlling the content output unit of the terminal to output an image obtained by scaling the content according to the display magnification at the time of input;
A content display system.
(Appendix 6)
The contact object determination unit of the server is based on information representing a type of technology used for detection of a contact position of the contact object included in information received from the input information transmission unit of the terminal. 6. The content display system according to appendix 5, wherein the type of the content is discriminated.
(Appendix 7)
A terminal having a display device for displaying content and an input device for detecting a contact position of a contact object,
A content acquisition unit that acquires information representing content to be displayed on the display device;
An input information transmitting unit that transmits information acquired via the input device to a server that determines a display magnification of the content based on a type of the contact object;
A content output unit that outputs the content to the display device and outputs an image obtained by scaling the content at a display magnification determined by the server to the display device;
With a terminal.
(Appendix 8)
The input information transmitting unit includes information indicating the type of technology used for detecting the contact position in information acquired through the input device, and transmits the information to the server. The terminal described in.
(Appendix 9)
A server that receives information obtained through the input device from a terminal having a display device that displays content and an input device that detects a contact position of a contact object,
An operation information generating unit that generates operation information based on information obtained via the input device;
A contact object determination unit that determines a type of the contact object based on information obtained via the input device;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing a size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. A history storage unit for storing;
When the operation information indicating the display magnification change instruction for inputting the handwritten information is generated, the handwritten information size predicted value indicating the size of the unit area of the handwritten information predicted to be input thereafter is calculated as the contact. An input time which is a display magnification at the time of input of the handwritten information based on the calculated handwritten information size predicted value associated with the type determined by the object determining unit and based on the calculated handwritten information size predicted value A display magnification determining section for determining a display magnification;
A display control unit for controlling the terminal to display an image obtained by scaling the content according to the display magnification at the time of input;
A server with
(Appendix 10)
The contact object discriminating unit discriminates the type of the contact object based on information indicating the type of technology used for detecting the contact position of the contact object, which is included in the information obtained via the input device. The server according to appendix 9, characterized by:
(Appendix 11)
A content display system comprising a terminal and a server,
The terminal
A content acquisition unit that acquires information representing content to be displayed on the display device;
A content output unit for outputting the content to the display device;
An operation information generation unit that generates operation information based on information acquired via an input device that detects a contact position of a contact object;
A contact object determination unit for determining the type of the contact object;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, information in which the handwritten information size actual value representing the size of the unit area of the handwritten information is associated with the type of the contact object is associated with the server A history transmitter to transmit to
When operation information representing a display magnification change instruction for inputting the handwritten information is generated, by receiving from the server a history of the handwritten information size actual measurement value associated with the type of the contact object, Based on the received history of the handwritten information size actual measurement value, a handwritten information size predicted value representing the size of the unit area of handwritten information predicted to be input thereafter is obtained, and based on the calculated handwritten information size predicted value A display magnification determining unit for determining an input display magnification that is a display magnification when inputting the handwritten information;
A display control unit for controlling the content output unit to output an image obtained by scaling the content in accordance with the input display magnification;
Have
The server
Information obtained by associating the actual measurement value of the handwritten information with the type of the contact object is accumulated by receiving from the terminal, and is associated with the type of the contact object specified in the request from the terminal. A history storage unit for transmitting the history of the handwritten information size actual measurement value to the terminal;
A content display system.
(Appendix 12)
The content display system according to appendix 11, wherein the contact object determination unit of the terminal determines the type of the contact object based on the type of technology used for detecting the contact position in the input device.
(Appendix 13)
A content acquisition unit that acquires information representing content to be displayed on the display device;
A content output unit for outputting the content to the display device;
An operation information generation unit that generates operation information based on information acquired via an input device that detects a contact position of a contact object;
A contact object determination unit for determining the type of the contact object;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, information associating the handwritten information size actual value representing the size of the unit area of the handwritten information with the type of the contact object is stored in the server. A history sending unit to send,
When operation information representing a display magnification change instruction for inputting the handwritten information is generated, by receiving from the server a history of the handwritten information size actual measurement value associated with the type of the contact object, Based on the history of the received handwritten information size actual measurement value, a handwritten information size predicted value representing the size of the unit area of handwritten information predicted to be input thereafter is obtained, and based on the calculated handwritten information size predicted value, A display magnification determination unit for determining a display magnification at the time of input which is a display magnification at the time of inputting the handwritten information;
A display control unit for controlling the content output unit to output an image obtained by scaling the content in accordance with the input display magnification;
With a terminal.
(Appendix 14)
14. The terminal according to appendix 13, wherein the contact object determination unit determines the type of the contact object based on a type of technology used for detection of a contact position in the input device.
(Appendix 15)
The size of the unit area of the handwritten information input to the input device from the terminal having the display device for displaying the content and the input device for detecting the contact position of the contact object to be superimposed on the content being displayed on the display device The received information is accumulated by receiving the information that associates the actual measured handwritten information size value indicating the type of the contact object when the handwritten information is input, and at the request from the terminal A server including a history storage unit that transmits a history of the handwritten information size actual measurement value associated with the specified type of the contact object to the terminal.
(Appendix 16)
Obtain information representing the content and display it on the display device.
When the contact position is detected in the input device that detects the contact position of the contact object, operation information is generated based on the information obtained from the input device,
Determining the type of the contact object;
When the operation information represents an instruction to change the display magnification for inputting handwritten information to be superimposed on the content, a handwritten information size predicted value indicating the size of the unit area of handwritten information predicted to be input thereafter Obtained based on the type of the contact object,
Based on the calculated handwritten information size predicted value, determine a display magnification at the time of input, which is a display magnification at the time of input of the handwritten information,
Displaying on the display device an image obtained by scaling the content according to the input display magnification;
Content display method.
(Appendix 17)
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing a size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. Accumulate,
By calculating the handwritten information size predicted value based on the history of the handwritten information size actual measurement value associated with the type of the contact object when the operation information indicating the display magnification change instruction is generated The content display method according to appendix 16, wherein the display magnification at the time of input is determined.
(Appendix 18)
A content display step of acquiring information representing the content and displaying the information on a display device;
An operation information generation step for generating operation information based on information obtained from the input device when the contact position is detected in the input device for detecting the contact position of the contact object;
A contact object determination step of determining a type of the contact object;
When the operation information represents an instruction to change the display magnification for inputting handwritten information to be superimposed on the content, a handwritten information size predicted value indicating the size of the unit area of handwritten information predicted to be input thereafter Handwriting information size prediction step to be obtained based on the type of the contact object;
A display magnification determination step for determining an input display magnification that is a display magnification at the time of input of the handwritten information based on the handwritten information size predicted value;
A content scaling step for displaying an image obtained by scaling the content according to the display magnification at the time of input on the display device;
Is a computer program that causes a computer device to execute.
(Appendix 19)
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing a size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. Further causing the computer device to execute a history accumulation step of accumulating,
In the handwriting information size prediction step, the handwriting information size actual measurement associated with the type of the contact object determined in the contact object determination step when the operation information representing the display magnification change instruction is generated. The computer program according to appendix 18, wherein the predicted handwritten information size value is obtained based on a history of values.

1, 2 Content display device 3, 4 Content display system 31, 41 Terminal 32, 42 Server 101, 311 Content acquisition unit 102, 312 Content output unit 103, 323 Display control unit 104, 324 Operation information generation unit 105, 325 Contact object Discriminating unit 106, 206, 416 Display magnification determining unit 207, 427 History accumulating unit 313 Input information transmitting unit 418 History transmitting / receiving unit 1001, 2001 CPU
1002, 2002 RAM
1003, 2003 ROM
1004 Display with touch panel 1005, 2005 Storage device 1006, 2006 Network interface

Claims (9)

A content acquisition unit that acquires information representing content to be displayed on the display device;
A content output unit for outputting the content to the display device;
An operation information generation unit that generates operation information based on information acquired via an input device that detects a contact position of a contact object;
A contact object determination unit for determining the type of the contact object;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing the size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. A history storage unit for storing;
When the operation information indicating the display magnification change instruction for inputting the handwritten information is generated, the handwritten information size predicted value indicating the size of the unit area of the handwritten information predicted to be input thereafter is calculated as the contact. Obtained based on the history of the measured value of the handwritten information size associated with the type of the contact object determined by the object determining unit, the display magnification at the time of input, which is the display magnification at the time of inputting the handwritten information, A display magnification determining unit that determines to be larger as the predicted value is larger;
A display control unit for controlling the content output unit to output an image obtained by scaling the content in accordance with the input display magnification;
A content display device comprising: The content display device according to claim 1 , wherein the contact object determination unit determines the type of the contact object based on a type of technology used for detection of a contact position in the input device. The display magnification determination unit obtains a value obtained by predicting a size of a unit area of a handwritten character predicted to be input thereafter based on the type of the contact object as the handwritten information size predicted value, and calculates the handwritten information size obtained. Based on the predicted value, the display magnification during browsing that is the display magnification of the content before scaling according to the input display magnification, and the readable character size in the content displayed at the browsing display magnification, The content display apparatus according to claim 1, wherein the display magnification at the time of input is determined. A content display system comprising a terminal and a server,
The terminal
A content acquisition unit that acquires information representing content to be displayed on the display device;
An input information transmitting unit that transmits information acquired via an input device that detects a contact position of a contact object to the server;
A content output unit that outputs the content to the display device and outputs an image obtained by scaling the content at a display magnification determined by the server to the display device;
Have
The server
An operation information generation unit that generates operation information based on information received from the input information transmission unit of the terminal;
A contact object determination unit that determines a type of a contact object that has contacted the input device in the terminal, based on information received from the input information transmission unit of the terminal;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing a size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. A history storage unit for storing;
When the operation information indicating the display magnification change instruction for inputting the handwritten information is generated, the handwritten information size predicted value indicating the size of the unit area of the handwritten information predicted to be input thereafter is calculated as the contact. An input time which is a display magnification at the time of input of the handwritten information based on the calculated handwritten information size predicted value associated with the type determined by the object determining unit and based on the calculated handwritten information size predicted value A display magnification determining section for determining a display magnification;
A display control unit for controlling the content output unit of the terminal to output an image obtained by scaling the content according to the display magnification at the time of input;
A content display system. A server that receives information obtained through the input device from a terminal having a display device that displays content and an input device that detects a contact position of a contact object,
An operation information generating unit that generates operation information based on information obtained via the input device;
A contact object determination unit that determines a type of the contact object based on information obtained via the input device;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, a history of information in which a handwritten information size actual value representing a size of a unit area of the handwritten information and a type of the contact object are associated with each other is generated. A history storage unit for storing;
When the operation information indicating the display magnification change instruction for inputting the handwritten information is generated, the handwritten information size predicted value indicating the size of the unit area of the handwritten information predicted to be input thereafter is calculated as the contact. An input time which is a display magnification at the time of input of the handwritten information based on the calculated handwritten information size predicted value associated with the type determined by the object determining unit and based on the calculated handwritten information size predicted value A display magnification determining section for determining a display magnification;
A display control unit for controlling the terminal to display an image obtained by scaling the content according to the display magnification at the time of input;
A server with A content display system comprising a terminal and a server,
The terminal
A content acquisition unit that acquires information representing content to be displayed on the display device;
A content output unit for outputting the content to the display device;
An operation information generation unit that generates operation information based on information acquired via an input device that detects a contact position of a contact object;
A contact object determination unit for determining the type of the contact object;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, information in which the handwritten information size actual value representing the size of the unit area of the handwritten information is associated with the type of the contact object is associated with the server A history transmitter to transmit to
When operation information representing a display magnification change instruction for inputting the handwritten information is generated, by receiving from the server a history of the handwritten information size actual measurement value associated with the type of the contact object, Based on the received history of the handwritten information size actual measurement value, a handwritten information size predicted value representing the size of the unit area of handwritten information predicted to be input thereafter is obtained, and based on the calculated handwritten information size predicted value A display magnification determining unit for determining an input display magnification that is a display magnification when inputting the handwritten information;
A display control unit for controlling the content output unit to output an image obtained by scaling the content in accordance with the input display magnification;
Have
The server
Information obtained by associating the actual measurement value of the handwritten information with the type of the contact object is accumulated by receiving from the terminal, and is associated with the type of the contact object specified in the request from the terminal. A history storage unit for transmitting the history of the handwritten information size actual measurement value to the terminal;
A content display system. A content acquisition unit that acquires information representing content to be displayed on the display device;
A content output unit for outputting the content to the display device;
An operation information generation unit that generates operation information based on information acquired via an input device that detects a contact position of a contact object;
A contact object determination unit for determining the type of the contact object;
When operation information representing handwritten information to be superimposed and displayed on the content is generated, information associating the handwritten information size actual value representing the size of the unit area of the handwritten information with the type of the contact object is stored in the server. A history sending unit to send,
When operation information representing a display magnification change instruction for inputting the handwritten information is generated, by receiving from the server a history of the handwritten information size actual measurement value associated with the type of the contact object, Based on the history of the received handwritten information size actual measurement value, a handwritten information size predicted value representing the size of the unit area of handwritten information predicted to be input thereafter is obtained, and based on the calculated handwritten information size predicted value, A display magnification determination unit for determining a display magnification at the time of input which is a display magnification at the time of inputting the handwritten information;
A display control unit for controlling the content output unit to output an image obtained by scaling the content in accordance with the input display magnification;
With a terminal. Obtain information representing the content and display it on the display device.
When the contact position is detected in the input device that detects the contact position of the contact object, operation information is generated based on the information obtained from the input device,
Determining the type of the contact object;
When the operation information represents handwritten information to be superimposed and displayed on the content, a history of information in which the measured value of the handwritten information size indicating the size of the unit area of the handwritten information is associated with the type of the contact object is accumulated. And
When the operation information represents an instruction to change the display magnification for inputting the handwritten information, the handwritten information size predicted value indicating the size of the unit area of the handwritten information predicted to be input thereafter is calculated as the contact object. Obtained based on the history of the handwritten information size actual measurement value associated with the type of
A display magnification at the time of input, which is a display magnification at the time of inputting the handwritten information, is determined to be larger as the handwritten information size predicted value is larger,
A content display method for displaying, on the display device, an image obtained by scaling the content according to the input display magnification. A content display step of acquiring information representing the content and displaying the information on a display device;
An operation information generation step for generating operation information based on information obtained from the input device when the contact position is detected in the input device for detecting the contact position of the contact object;
A contact object determination step of determining a type of the contact object;
When the operation information represents handwritten information to be superimposed and displayed on the content, a history of information in which the measured value of the handwritten information size indicating the size of the unit area of the handwritten information is associated with the type of the contact object is accumulated. A history accumulation step to
When the operation information represents an instruction to change the display magnification for inputting the handwritten information, the handwritten information size predicted value indicating the size of the unit area of the handwritten information predicted to be input thereafter is calculated as the contact object. A handwriting information size prediction step for obtaining based on a history of the handwritten information size actual measurement value associated with the type of the contact object determined in the determination step ;
A display magnification determination step for determining an input display magnification which is a display magnification at the time of inputting the handwritten information, so as to increase as the handwritten information size predicted value is larger;
A content scaling step for displaying an image obtained by scaling the content according to the display magnification at the time of input on the display device;
Is a computer program that causes a computer device to execute.

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