WO2013077014A1 - 表示制御装置、表示方法、制御プログラム、および記録媒体 - Google Patents

表示制御装置、表示方法、制御プログラム、および記録媒体 Download PDF

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Publication number
WO2013077014A1
WO2013077014A1 PCT/JP2012/063660 JP2012063660W WO2013077014A1 WO 2013077014 A1 WO2013077014 A1 WO 2013077014A1 JP 2012063660 W JP2012063660 W JP 2012063660W WO 2013077014 A1 WO2013077014 A1 WO 2013077014A1
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WO
WIPO (PCT)
Prior art keywords
enlarged
range
display
display area
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/063660
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English (en)
French (fr)
Japanese (ja)
Inventor
瑞 作田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
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Sharp Corp
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Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to US14/005,035 priority Critical patent/US20140013216A1/en
Publication of WO2013077014A1 publication Critical patent/WO2013077014A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/10—Text processing
    • G06F40/103—Formatting, i.e. changing of presentation of documents
    • G06F40/106—Display of layout of documents; Previewing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/0483—Interaction with page-structured environments, e.g. book metaphor
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/10—Text processing
    • G06F40/103—Formatting, i.e. changing of presentation of documents
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04806—Zoom, i.e. interaction techniques or interactors for controlling the zooming operation

Definitions

  • the present invention relates to a technique for enlarging and displaying document content, and more particularly to a display control apparatus and the like for enlarging and displaying a page layout type document content.
  • Page layout type document content is document content with a fixed layout. Such document content has an advantage that the layout does not collapse even when enlarged. Further, there is an advantage that the document can be easily created by reading a document on a paper medium with a scanner or the like. On the other hand, when a part of the document does not fit in the screen due to the enlarged display, there is a disadvantage that it is necessary to repeat scrolling in order to read the sentence.
  • the reflow type document content is created on the assumption that the display size is variable, and when the display size is changed, the characters reflow according to the size. For this reason, even in an enlarged display state, the text can be read only by page turning, and there is no need to repeat scrolling as in the page layout type.
  • the labor and cost for producing the content are larger than the page layout type.
  • Patent Documents 1 and 2 are cited as documents disclosing a technique for solving the above-mentioned drawbacks in page layout type document content.
  • Patent Document 1 describes that an enlarged image is divided and displayed in two stages to prevent a part of the image from being displayed when the enlarged image is displayed.
  • Japanese Patent Application Laid-Open No. 2004-228561 describes that each word portion included in a document is recognized as an object, and the display similar to the reflow type is performed by changing the arrangement of the object according to the display size.
  • the page layout type document content has an advantage that the layout is fixed. For this reason, if you can display a fixed-layout document and display a part of it on the same screen, you can zoom in on some of the hard-to-see characters and sentences on the page while checking the layout of the page. is there.
  • Patent Document 3 can be cited as a related technology.
  • Japanese Patent Application Laid-Open No. 2004-151561 describes that a selected headword out of the headwords displayed in a list is enlarged and displayed in a zoom window.
  • Japanese Patent Publication “JP 2007-226213 A” (published September 6, 2007) Japanese Patent Gazette “Special Table 2009-531789” (published on September 3, 2009) Japanese Patent Publication “Japanese Patent Laid-Open No. 2006-331443” (published on December 7, 2006)
  • Patent Documents 1 and 2 are both assumed to be enlarged and displayed on the entire screen. While displaying the image before enlargement, a part of the image is enlarged and displayed in another area of the same screen. If you are not considered. Further, the technique of Patent Document 3 is to enlarge and display a headword, and the headword is usually not displayed across a plurality of lines. Therefore, it is difficult to solve this problem by combining the techniques of these documents.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a display control device and the like that can easily specify a range extending over a plurality of lines of document content and display it in an enlarged manner. There is to do.
  • the display control apparatus of the present invention displays a document content including a plurality of lines, and displays a part of the lines of the document contents in a predetermined enlarged display area.
  • the apparatus refers to management information indicating each position of the plurality of lines, determines an expansion range in a line including the position on the basis of a specified position on the document content, and determines the determined expansion
  • An enlargement range determining means for further determining an enlargement range from the beginning of the next line within a range that can be enlarged and displayed in the enlargement display area when the range reaches the end of the line including the position; and the enlargement range determination
  • an enlarged display means for displaying, in the enlarged display area, images in which the enlarged range determined by the means is enlarged and arranged in order from the image corresponding to the previous row.
  • the display method of the present invention displays a document content including a plurality of lines, and displays a part of the line of the document contents in a predetermined enlarged display area.
  • a display method by a control device the step of referring to management information indicating the position of each of the plurality of lines and determining an expansion range in a line including the position on the basis of a specified position on the document content And when the determined enlargement range has reached the end of the line including the position, further determining the enlargement range from the beginning of the next line within the range that can be enlarged and displayed in the enlargement display area; and the determination And displaying the enlarged image in the enlarged display area in order from the image corresponding to the previous row.
  • the expansion range in the line including the position is determined with reference to the specified position on the document content with reference to the management information. Further, when the determined enlargement range has reached the end of the line including the position, the enlargement range is further determined from the beginning of the next line within the enlargement displayable range in the enlargement display area. And the image which expanded the determined expansion range is arranged in an order from the image corresponding to a previous line, and is displayed on an expansion display area.
  • the line at the designated position and the next line are enlarged and displayed.
  • the user can easily specify and enlarge and display a range extending over a plurality of lines of document content.
  • another display control apparatus of the present invention displays document content including a plurality of levels and enlarges a part of the level of the document content to a predetermined enlarged display area.
  • a display control device for displaying, with reference to management information indicating the position of each of the plurality of stages, determining an expansion range in a stage including the position on the basis of a designated position on the document content
  • An enlarged range determining means for further determining an enlarged range from the beginning of the next stage within a range that can be enlarged and displayed in the enlarged display area when the determined enlarged range has reached the end of the stage including the position;
  • Magnifying display means for displaying, in the magnified display area, images in which the magnified range determined by the magnified range determining means is enlarged in order from the image corresponding to the previous stage. It is characterized.
  • document content including a plurality of levels is displayed and a part of the level of the document contents is displayed in an enlarged display area.
  • a display method by a display control apparatus for determining an expansion range in a stage including the position with reference to a designated position on the document content with reference to management information indicating the position of each of the plurality of stages And a step of further determining an enlarged range from the beginning of the next stage within the range that can be enlarged and displayed in the enlarged display area when the determined enlarged range has reached the end of the stage including the position; And displaying the enlarged image of the determined enlarged range in order from the image corresponding to the previous stage in the enlarged display area.
  • the expansion range in the stage including the position is determined with reference to the specified position on the document content with reference to the management information. Further, when the determined enlargement range has reached the end of the step including the above position, the enlargement range is further determined from the beginning of the next step within the enlargeable display range in the enlargement display area. And the image which expanded the determined expansion range is arranged in an order from the image corresponding to a previous step
  • the display is enlarged in a state where the stage at the designated position and the next stage are connected.
  • the user can easily specify and display an enlarged range that spans multiple stages of document content.
  • the display control apparatus of the present invention refers to the management information indicating the position of each of a plurality of lines, and determines the expansion range in the line including the position on the basis of the specified position on the document content.
  • the enlargement range determination means further determines the enlargement range from the beginning of the next line within the range that can be enlarged and displayed in the enlargement display area.
  • an enlarged display means for displaying, in the enlarged display area, images obtained by enlarging the enlarged range determined by the enlarged range determining means in order from the image corresponding to the previous row.
  • the display method of the present invention refers to the management information indicating the position of each of the plurality of lines, and sets the expanded range in the line including the position on the basis of the specified position on the document content.
  • the user can easily specify and expand the range extending over a plurality of lines of the document content. There is an effect that it can be displayed.
  • the other display control device of the present invention refers to the management information indicating the position of each of the plurality of stages, and uses the specified position on the document content as a reference in the stage including the position. In addition to determining the enlargement range, if the determined enlargement range reaches the end of the stage including the position, the enlargement range is further determined from the beginning of the next stage within the range that can be enlarged and displayed in the enlargement display area.
  • the other display method of the present invention refers to the management information indicating the position of each of the plurality of levels, and enlarges the level including the position on the basis of the specified position on the document content.
  • a step of determining a range and when the determined enlargement range reaches the end of the step including the position, further determines an enlargement range from the top of the next step within the range that can be enlarged and displayed in the enlargement display area.
  • the user since the stage at the designated position and the next stage are enlarged and displayed, the user can easily designate and enlarge the range that spans multiple stages of the document content. There is an effect that it can be displayed.
  • FIG. 1 It is a figure which shows one Embodiment of this invention, and is a block diagram which shows the principal part structure of an electronic book terminal. It is a figure which shows the example of a display screen in the page browsing mode and line browsing mode of the said electronic book terminal, The figure (a) shows the example of a screen of page browsing mode, The figure (b) shows the example of a screen of line browsing mode. Show. It is a figure explaining the operating method of the said electronic book terminal in the said line browsing mode. It is a figure which shows the example of a screen as which the said electronic book terminal displayed the vertically written document content in line browsing mode. It is a figure which shows the example of a display in the stage browsing mode which is one of the browsing modes of the said electronic book terminal.
  • FIG. 1 It is a figure which shows the example of a screen of the transition destination from the said row
  • the figure (a) shows the example of a display of a stage full screen mode,
  • the figure (b) shows the example of a display of page full screen mode. .
  • FIG. 1 It is a figure explaining the screen transition when the said electronic book terminal displays related information
  • the figure (a) shows the example of a screen before the display of related information
  • the figure (b) displays drawing as related information
  • An example of the screen is shown after It is a figure explaining the line management information which the said electronic book terminal uses for an enlarged display etc.
  • FIG. It is a figure explaining the related information position list
  • FIG. 1 is a block diagram showing a main configuration of an electronic book terminal (display control device) 1.
  • the electronic book terminal 1 includes an input unit 10, a display unit 11, a control unit 12, and a storage unit 13.
  • the electronic book terminal 1 is an electronic device capable of browsing document contents including an electronic book. For example, a page layout type document content such as PDF (Portable Document Format) is displayed.
  • PDF Portable Document Format
  • the electronic book terminal 1 is mainly characterized by an enlarged display mode of document content. Note that the document content to be displayed is not limited to the PDF format, but may be other format such as TIFF or JPEG.
  • the input unit 10 receives an input operation of the user of the electronic book terminal 1 and transmits it to the control unit 12.
  • the display unit 11 displays an image according to the control of the control unit 12.
  • the input unit 10 and the display unit 11 may be separate devices from the electronic book terminal 1 attached to the electronic book terminal 1.
  • the control unit 12 controls the functions of the electronic book terminal 1 in an integrated manner, and includes an enlarged range determining unit (enlarged range determining unit) 20, a display processing unit (enlarged display unit) 21, and a related information processing unit (related). Information processing means) 22.
  • the enlargement range determination unit 20 determines the enlargement range of the image being displayed based on the input operation received by the input unit 10. Specifically, when the input unit 10 receives an input operation for selecting a position on the document content being displayed, the enlargement range is determined based on the selected position. The method for determining the expansion range will be described in detail later.
  • the display processing unit 21 performs processing for displaying the document content on the display unit 11. Also, processing for enlarging, reducing, and scrolling the displayed document content is performed.
  • the display is performed in the browsing mode corresponding to the document to be displayed.
  • This browsing mode includes a page browsing mode in which a document is displayed in page units, a line browsing mode in which an enlarged portion is displayed in line units, and a column browsing mode in which an enlarged portion is displayed in column units. Details of these browsing modes will be described later.
  • the related information processing unit 22 performs processing for displaying related information of the document content. Specifically, the annotations and diagrams corresponding to the enlargement range among the annotations and diagrams included in the document content are displayed automatically or in response to a user operation. Details of processing for displaying related information will be described later.
  • the storage unit 13 stores various data used by the electronic book terminal 1, and includes line management information (management information, link information) 30, content (document content) 31, and related information position list (image position information). 32 is stored.
  • the storage unit 13 is built in the electronic book terminal 1
  • the electronic book terminal 1 is configured to be able to read data stored in the storage unit 13.
  • the storage unit 13 may be externally attached to the electronic book terminal 1 or may exist in a server or the like that can communicate with the electronic book terminal 1.
  • the line management information 30 is for managing the document content, and includes at least information indicating the position of each row or each stage constituting the document content.
  • the expansion range determination unit 20 determines the expansion range using this row management information 30.
  • the row management information 30 includes information for specifying row related information. That is, the row management information 30 includes link information that links the row and the related information. The contents of the line management information 30 and the determination of the expansion range based on this will be described in detail later.
  • the content 31 is a target to be displayed on the display unit 11.
  • the content 31 is document content in PDF format.
  • the content 31 may be any page layout type document content, and is not limited to the PDF format.
  • the related information position list (image position information) 32 is a list indicating positions where related images corresponding to related information are included in the document content.
  • the related image is, for example, an image of an annotation or a figure.
  • the related information processing unit 22 displays the related information using the row management information 30 and the related information position list 32. The contents of the related information position list 32 and the display of related information based on this will be described in detail later.
  • FIG. 2A and 2B are diagrams showing examples of display screens in the page browsing mode and the line browsing mode.
  • FIG. 2A shows an example of the screen in the page browsing mode
  • FIG. 2B shows an example of the screen in the line browsing mode. .
  • the document content is displayed in the page display area A in the page browsing mode.
  • the page display area A basically one page of document content is displayed.
  • tapping a touch operation with a finger or the like for a short time
  • a transition to the line browsing mode is made.
  • the operation for designating the enlargement position is not limited to a tap, and may be an operation such as a double tap for performing two consecutive taps at the same position, or a long press for continuously touching the same position for a predetermined time or longer.
  • a line display area (enlarged display area) B appears and a part of the document displayed in the page display area A is enlarged and displayed in this line display area B as shown in FIG.
  • the page display area A is reduced.
  • the horizontal direction of the line display area B is the longitudinal direction.
  • the portion from “Buddha” to “, Many” in the document displayed in the page display area A is enlarged and displayed.
  • the part from “Buddha” to “, Many” in the page display area A extends from the first line to the second line of the sentence.
  • the electronic book terminal 1 has a feature that, even though the display target is page layout type document content, the range extending over a plurality of lines can be enlarged and displayed based on the designated position. Yes.
  • an underline is displayed in the enlarged range.
  • the user can recognize where the enlarged range is in the layout of the entire page.
  • This effect is obtained by displaying the enlarged range so as to be distinguishable from other parts of the image of the entire page, and may be a display such as changing the background color of the enlarged range.
  • FIG. 3 is a diagram illustrating an operation method in the row browsing mode.
  • the screen in the row browsing mode includes a page display area A and a row display area B.
  • the enlargement range can be scrolled by performing a drag operation in the left-right direction (operation of sliding a finger touching the display surface) as indicated by an arrow a.
  • a drag operation in the left-right direction (operation of sliding a finger touching the display surface) as indicated by an arrow a.
  • the text sentence after the number
  • the text in front of “Buddha” can be enlarged and displayed by dragging in the right direction.
  • the electronic book terminal 1 allows the page layout type document content to be reflowed and browsed.
  • line feed can also be performed by performing a flick operation in the line display area B in the left-right direction (sliding and releasing the finger touching the display surface).
  • the line feed here means that instead of the part displayed in the line display area B, the part immediately following or immediately before is displayed, that is, the enlarged display part is replaced with the previous or subsequent part. Point to. For example, when a rightward flick operation is performed in the illustrated example, a portion from “China” to “returned” is displayed in the row display area B.
  • pinch out in the row display area B operation to increase the distance between two touched fingers while touching the display surface with two fingers
  • pinch in two The magnification may be changed by performing an operation such as an operation of narrowing the interval between two touched fingers while touching the display surface with a finger.
  • the flicking operation in the left-right direction in page display area A corresponds to the page switching. That is, when a right flick operation is performed in the page display area A, the page before the currently displayed page is displayed. Similarly, when a left flick operation is performed, the page next to the currently displayed page is displayed. As described above, regarding the flick operation in the left-right direction, processing executed in the page display area A is different from that executed in the row display area B.
  • the range to be enlarged can be designated again. For example, by performing a tap operation at a position indicated by c in the same figure, the enlargement range based on this position is reset, and the display in the row display area B is updated.
  • the operation in the page browsing mode is the same as the operation in the page display area A in the row browsing mode. That is, in the page browsing mode, page switching is performed by a flick operation in the horizontal direction. In addition, the designation of the enlargement range by the tap operation is accepted, and thereby the mode is changed to the line browsing mode.
  • FIG. 4 is a diagram illustrating an example of a screen displaying vertically written document content in the row browsing mode.
  • a row display area (enlarged display area) B ′ whose longitudinal direction is the longitudinal direction appears adjacent to the page display area A ′ in the left-right direction.
  • the enlarged display across the lines is performed as in the case of the horizontal writing.
  • the range from “weather” on the second line to “clear” on the third line in the page display area A ′ is an enlargement target range, and this range is enlarged and displayed in the line display area B ′.
  • the operation method when the vertically written document content is enlarged is the same as that shown in FIG.
  • the line display area B ' is vertically written, it is different from the case of horizontal writing in that scrolling is performed by a drag operation in the vertical direction and line feed is performed by a flick operation in the vertical direction.
  • FIG. 5 is a diagram illustrating a display example in the column browsing mode.
  • the screen in the column browsing mode includes a page display area A "and a column display area (enlarged display area) B". Among these, the text from “third” to “was” in the second row is displayed in the column display area B ′′.
  • the entire page is displayed as in the examples of FIGS. 2 to 4, and “there is” from the “third” on the first row to the “second” on the second row.
  • the part up to is marked.
  • the range extending across the columns of the page display area A ′′ is enlarged and displayed in the column display area B ′′.
  • the operation as shown in FIG. 3 is possible as in the row browsing mode.
  • the enlargement range can be scrolled by a left-right drag operation in the column display area B ′′, or the enlargement range can be designated by a tap operation in the page display area A ′′.
  • FIG. 6A and 6B are diagrams showing an example of the screen of the transition destination from the column browsing mode.
  • FIG. 6A shows a display example of the column full screen mode
  • FIG. 6B shows a display example of the page full screen mode. Show.
  • the step display area B ′′ is displayed on the full screen, and the enlargement magnification is thereby higher than the screen example of FIG. The visibility of characters is improved.
  • step full screen mode the same operation as the step display area B ′′ in the step browsing mode is possible. That is, in the step full screen mode, the scrolling of the enlarged range by the drag operation in the left and right direction and the flick operation are possible.
  • the expansion range can be moved.
  • the page display area A ′′ is displayed on the full screen.
  • the difference from the normal page browsing mode is that the marking indicating the enlarged range being selected is applied. It is a point.
  • the same operation as the page display area A ′′ in the column browsing mode is possible.
  • the page is switched by a flick operation in the left and right direction, and the expanded range is achieved by a tap operation. Can be specified.
  • the screen may be switched to the full screen mode by double tapping in the column display area B ", and switched to the full page mode by double tapping in the page display area A".
  • the double-tap on the screen may return to the multi-view mode.
  • the stage full screen mode may be changed by a pinch out operation in the stage display area B ′′ in the stage browsing mode.
  • the page full screen mode is changed by the pinch out operation in the page display area A ′′. You may do it. And you may make it return to column browsing mode by pinch-in operation in page full screen mode or column full screen mode.
  • FIG. 7 is a diagram illustrating an example of a screen when an annotation is displayed as related information.
  • the annotation on the same page as the page being enlarged is displayed, but the image of the annotation, that is, the page with the related image may be another page.
  • the trigger for displaying the annotation is not limited to the above example.
  • the enlarged text contains a character string or symbol (for example, “*”) for referring to the annotation
  • An annotation may be displayed when a tapped sentence is tapped.
  • the annotation is displayed when the character string or symbol for referring to the annotation is tapped in the page display area. May be.
  • FIG. 8 is a diagram illustrating a screen example when a drawing is displayed as related information.
  • the drawing is displayed as related information, as in the case of annotations, when the description of " Figure ⁇ " exists in or near the enlargement range by specifying the enlargement range, scrolling, etc. It is.
  • a related information display area C ′ appears between the row display area B and the page display area A, and a thumbnail image of the drawing is displayed in the related information display area C ′. Is displayed.
  • the text “included ⁇ ” is enlarged in the line display area B, and “FIG. 1” is written after the text in the page display area A. .
  • the thumbnail image of FIG. 1 described in the previous page (page 11) is displayed in the related information display area C ′.
  • the user can check the drawing related to the text in the related information display area C ′ while viewing the text enlarged and displayed in the line display area B without returning to the previous page.
  • FIG. 9 is a diagram for explaining screen transitions when related information is displayed.
  • FIG. 9A shows an example of a screen before displaying related information
  • FIG. 9B shows a drawing as related information. The following screen example is shown.
  • the original size in FIG. 1 exceeds the size that can be displayed in the related information display area C ′, and is therefore displayed in a reduced size.
  • the drawing is displayed in the related information display area C ′ in a state where the page display area A is displayed.
  • the page display area A is not displayed and the drawing is related to the row display area B.
  • the information display area C ′ may be displayed. In this case, the drawing can be displayed larger.
  • FIG. 10 is a diagram for explaining the row management information 30.
  • the illustrated row management information 30 is information in a table format in which seven elements of a row number (row No.), X, Y, width, height, annotation link, and drawing link are associated with each other.
  • the line number is a number assigned in order to each line of the text described on the page.
  • rows management information 30 as illustrated is stored for each page, and each row management information 30 is associated with information (not shown) indicating the corresponding page.
  • the line numbers may be assigned numbers sequentially from the first line of one document content. In this case, one line management information 30 is provided for one document content.
  • X and Y are information indicating the position of the line, and in the illustrated example, the upper left corner of the screen is the origin (0, 0), and the position of the upper left vertex of the rectangle of the line is indicated by a coordinate value.
  • the X and Y values indicate that the coordinate value is (10, 10).
  • the coordinate value corresponds to the number of dots on the screen.
  • a point with a coordinate value of (10, 10) is a point of 10 dots to the right and 10 dots below from the upper left corner of the screen.
  • Width and height are information indicating the line size, and in the illustrated example, indicate the number of dots. For example, it is indicated that the row having the row number 1 has a width of 1024 dots and a height of 60 dots. The position of the row (range occupied on the screen) is specified from the values of X, Y, width, and height.
  • the line with the line number 1 is specified to have a coordinate value of the top left vertex of (10, 10), a width of 1024 dots, and a height of 60 dots. Therefore, it is specified that this line occupies a rectangular range having (10, 10) and (1034, 70) as opposed vertices on the screen.
  • the annotation link and the drawing link are information for referring to related information.
  • the annotation link specifies the annotation in the form of “page number, annotation number”
  • the drawing link specifies the annotation in the form of “page number, drawing number”.
  • annotation link and the drawing link are not limited to this example as long as they are information that can uniquely identify the annotation and the drawing. Further, since the drawing reference method and the annotation reference method are the same, the annotation link and the drawing link may be combined into one link information.
  • the line management information 30 is not limited to a table format as long as it can specify the range of each line constituting the document content. If it is not necessary to display related information, the annotation link and drawing link elements may be omitted, or the annotation link and drawing link may be information independent of the row management information 30.
  • the line management information 30 of the horizontally written document content has been described as an example, but the configuration of the line management information 30 of the vertically written document content is also the same.
  • the row management information 30 for the columnar document content corresponds to the coordinate values (X, Y) indicating the position, the width of the row, and the height of the row for each row, similarly to the row management information 30 for the horizontal document content. It may be attached.
  • the row management information 30 is information indicating the position of each row, there is an advantage that the amount of information can be reduced compared to the case where the information indicating the position of each row is used.
  • FIG. 11 is a diagram for explaining the related information position list 32.
  • the related information position list 32 shown in the figure is information in a table format in which five elements of figure number (figure No.), X, Y, width, and height are associated with each other.
  • the figure number is a number assigned to each figure included in the document content.
  • the figure number only needs to be able to uniquely identify each drawing to be displayed as related information.
  • FIG. 1 is designated as figure number 1, and the subsequent figures may be assigned numbers in order.
  • X and Y are information indicating the position of the figure, and in the illustrated example, indicate the coordinate value of the upper left vertex of the rectangle surrounding the figure. For example, in the example shown in the figure, the X and Y values indicate that this coordinate value is (50, 50).
  • Width and height are information indicating the size of the figure, and in the illustrated example, the number of dots. For example, in the illustrated example, the width is 980 dots and the height is 880 dots. That is, this “FIG. 1” is specified to occupy a rectangular area with (50, 50) as the upper left vertex and (1030, 930) as the opposite vertex on page 11.
  • the position of the drawing indicated by the drawing link of the line management information 30 is specified with reference to the related information position list 32. Then, the image at this position is cut out, reduced to a size that fits in the related information display area C ′, and displayed.
  • the related information position list 32 of the drawing is shown, but the same list can be displayed in the case of annotations.
  • the annotation is generally the same character size as that of the text or smaller, the annotation image cut out using the list is enlarged to the maximum size that can be accommodated in the related information display area as in the example of FIG. It is desirable to display it.
  • drawings and annotations are shown as specific examples of the related information.
  • the related information only needs to give the user some advantage by presenting it with the enlarged document. I can't.
  • a table may be displayed as related information.
  • FIG. 12 is a flowchart illustrating an example of the enlarged display process.
  • the browsing mode can be specified using the row management information 30 corresponding to the content 31 to be displayed.
  • the height value is larger than the line width for vertical writing documents, and the width value is larger for horizontal writing documents, so display in any viewing mode based on the ratio of line width to height.
  • the ratio between the width and the height of the column is different from the ratio between the width and the height of the line, and this is used to display the column document in the column browsing mode. be able to.
  • the line management information 30 may include information indicating the browsing mode to be applied. In addition, you may make a user select the browsing mode which should be applied.
  • the subsequent processing differs depending on the display mode (viewing mode) when the tap operation is detected. That is, if the viewing mode is horizontal writing mode (S2 in row browsing mode (horizontal)), the process proceeds to S3. If the browsing mode is vertical writing mode (S2 in line browsing mode (vertical)), the process proceeds to S13. If the browsing mode is the column browsing mode (the column browsing mode in S2), the process proceeds to S23.
  • the expansion range determination unit 20 determines the expansion range of the row from the row management information 30 based on the tap position. Specifically, the enlargement range determination unit 20 first specifies the maximum width of the enlargement target range that can be displayed in the horizontal line display area. This maximum width is determined by the width of the row display area and the enlargement magnification. For example, when the width of the line display area is 980 dots and the enlargement magnification is 2 times, the maximum width of the enlargement target range is 490 dots.
  • the enlargement range determination unit 20 reads the row management information 30 of the page displayed when the tap operation is detected from the storage unit 13, and uses the coordinates received from the input unit 10 to determine which tap position is Determine if it is included in the row. Then, in the specified row, the expansion range is specified in the range up to the maximum width with the X value of the coordinates as a reference.
  • the range up to the position obtained by adding the maximum width to 200 which is the value of X of the coordinates is determined as the expansion range. For example, if the maximum width is 490 dots, 200 to 690 (200 + 490) is determined as the horizontal position of the enlarged range. Then, the Y coordinate value 90 shown in the row management information 30 to 150 obtained by adding the height value 60 to the Y coordinate value is determined as the position in the height direction (vertical direction) of the enlarged range. To do. That is, in this case, the enlargement range is determined as a range from (200, 90) to (690, 150).
  • the starting point of the enlarged range is a position shifted leftward from the X coordinate of the detected tap position.
  • the expansion range determination unit 20 determines whether the expansion range specified in S3 has reached the maximum width (S4). For example, if the tap position is (200, 100) and the maximum width is 490 dots as in the above example, the expanded range is up to 690 dots. In this case, since the X coordinate of the start position of the line is 10 and the width of the line is 1024, the expanded range up to 690 dots is included in this line, so it is determined that the maximum width has been reached. On the other hand, if the tap position is (900, 100), since it is possible to determine only up to 1034 dots in this row as the enlargement range, 356 dots remain until the maximum width, and it is determined that the maximum width has not been reached.
  • the expansion range determination unit 20 determines that the maximum width has not been reached (NO in S4), the process proceeds to S5. On the other hand, if it is determined that it has been reached (YES in S4), the process of S5 is not performed and the process proceeds to S6.
  • the expansion range determination unit 20 determines the expansion range of the next line. Specifically, in the line management information 30, the range from the left end of the line obtained by adding 1 to the line number of the line at the tap position to the maximum width is determined as the expansion range of the next line.
  • the expansion range determination unit 20 further increases the expansion range from the beginning of the next line within the range that can be displayed in the line display area. decide.
  • the enlargement range determination unit 20 instructs the display processing unit 21 to enlarge and display the image of the enlargement range determined as described above in the row display area.
  • the display processing unit 21 reads the image in the determined enlargement range, enlarges this image at a predetermined magnification, and displays it in the horizontal line display area.
  • the image of the previous line is enlarged and displayed in the line display area, and then the image of the next line is enlarged, and the line display is continued from the enlarged image of the previous line. Display in the area.
  • an image obtained by connecting the image of the previous row and the image of the next row may be generated, and the connected image may be enlarged and displayed in the row display area.
  • the enlarged images are displayed in order from the image corresponding to the previous row, and the enlarged images in the enlarged range of the two rows are displayed in a connected state, and the content of the specific processing for this display is not particularly limited. .
  • the page display area may be moved or the page display area may be reduced to secure the space and perform enlarged display.
  • the enlargement range determination unit 20 notifies the display processing unit 21 of the determined enlargement range, and instructs to perform marking display on the page display area. Upon receiving this notification and command, the display processing unit 21 displays the marking so that the notified image in the enlarged range can be distinguished from other images (S7).
  • an underline may be displayed as shown in FIG. 2B, or the background color of the entire range may be changed as shown in FIG.
  • the process proceeds to S13.
  • the enlargement range is determined using the coordinates of the tap position and the row management information 30.
  • the line display area is also vertical writing (see FIG. 4), so the enlargement range is determined based on the row height.
  • the expansion range determination unit 20 determines whether the expansion range determined in S13 has reached the maximum height (S14). If it is determined that the maximum height has not been reached (NO in S14), the process proceeds to S15. If it is determined that the maximum height has been reached (YES in S14), the process of S15 is not performed and S16 is performed. Proceed to the process.
  • the enlargement range determination unit 20 instructs the display processing unit 21 to enlarge and display the image of the enlargement range determined as described above in the vertical line display area.
  • the display processing unit 21 reads an image in the determined enlargement range, enlarges the image at a predetermined magnification, and displays the enlarged image in a vertically written line display area. Then, the post-processing proceeds to S7.
  • the process proceeds to S23.
  • the enlargement range is determined in the same manner as S3. For example, when the row management information 30 is for managing the content 31 in units of columns, the range from the X coordinate of the tap position until reaching the maximum width in the right direction is determined as the expansion range. When the line management information 30 manages the content 31 in units of lines, the range from the X coordinate at the left end of the line at the tap position to the line reaching the maximum width in the right direction is determined as the expansion range. .
  • the expansion range determination unit 20 determines whether or not the expansion range specified in S23 has reached the maximum width (S24). If it is determined that the maximum width has not been reached (NO in S24), the process proceeds to S25. If it is determined that the maximum width has been reached (YES in S24), the process of S25 is not performed and the process of S26 is performed. Proceed to processing.
  • the expansion range determination unit 20 determines the expansion range of the next stage. For example, when the row management information 30 is for managing the content 31 in units of rows, the range from the left end of the step obtained by adding 1 to the step number of the step at the tap position to the maximum width in the row management information 30 is as follows. Determine as the expansion range of the step. When the line management information 30 manages the content 31 in units of lines, the maximum width is determined based on the number of remaining dots up to the maximum width and the X coordinate and the width of each line position indicated by the line management information 30. The lines that fall within are determined as the expansion range.
  • the enlargement range determination unit 20 instructs the display processing unit 21 to enlarge and display the image of the enlargement range determined as described above in the column display area.
  • the display processing unit 21 reads an image in the determined enlargement range, enlarges this image at a predetermined magnification, and displays it in the column display area. Then, the post-processing proceeds to S7.
  • FIG. 13 is a flowchart illustrating an example of the enlarging process.
  • the enlarged range determination unit 20 detects a drag operation in the row display area or the column display area during the enlarged display (S30). If it is detected from the input operation accepted by the input unit 10 that a drag operation has been performed in the row display area or the column display area (YES in S30), the process proceeds to S31. On the other hand, if a drag operation is not detected (NO in S30), the process proceeds to S40.
  • the expansion range determination unit 20 determines the expansion range according to the direction and distance of the drag operation. Specifically, with the current enlargement range as a reference, if the drag operation is in the right direction, the enlargement range is moved leftward, and if the drag operation is in the left direction, the enlargement range is moved rightward. .
  • the moving distance according to the dragged distance is determined so that the enlarged character follows the dragged user's finger. Then, the display processing unit 21 is instructed to enlarge and display the enlarged range moved by the decided moving distance in the decided moving direction, and the enlarged display is updated (S32).
  • the expansion range is moved across the lines. That is, the enlargement range determination unit 20 moves the enlargement range to the beginning of the next line when it is moved to the end of the line, and moves it to the end of the previous line when it is moved to the beginning of the line. In addition, by referring to the row management information 30 of each page, it is possible to move the enlargement range across the pages.
  • the expansion range determination unit 20 instructs the display processing unit 21 to update the marking display on the page display area (S33). Thereafter, the process returns to S30.
  • the enlarged range determination unit 20 detects a flick operation in the row display area or the column display area. If it is detected from the input operation accepted by the input unit 10 that a flick operation has been performed in the row display area or the column display area (YES in S40), the process proceeds to S41. On the other hand, when the flick operation is not detected (NO in S40), the process returns to S30.
  • the enlargement range determination unit 20 moves the enlargement range according to the direction of the flick operation. Specifically, if the flick operation is in the right direction, the enlargement range is moved so that the start of the current enlargement range becomes the end of the new enlargement range. Further, if the flick operation is in the left direction, the enlargement range is moved so that the end of the current enlargement range becomes the start of the new enlargement range. Thereafter, the process proceeds to S32, where the enlarged display is updated based on the enlarged range determined as described above, and the marking of the page display area is also updated (S33). Then, the process returns to S30.
  • FIG. 14 is a flowchart illustrating an example of related information display processing.
  • the related information display process is executed when the enlargement range is determined.
  • the expansion range determination unit 20 When the expansion range is determined (S50), the expansion range determination unit 20 notifies the related information processing unit 22 of information indicating the determined expansion range. Note that this information only needs to be able to identify the line that is the expansion range, and may be, for example, a line number.
  • the related information processing unit 22 that has received the above notification checks whether there is related information in the row to be expanded (S51). Specifically, the related information processing unit 22 refers to the row management information 30 to determine whether link information (an annotation link or a drawing link in the example of FIG. 10) is associated with the row to be enlarged. Check.
  • the related information processing unit 22 ends the related information display process.
  • the position of the image (related image) corresponding to the related information is specified with reference to the related information position list 32 (S52). Then, the display processing unit 21 is instructed to display the image at the specified position (S53), and the related information display process is terminated.
  • the enlarged display is scrolled by the flick operation and the drag operation in the row display area B.
  • the enlarged display may be automatically scrolled.
  • the document displayed in the line display area B can be read without repeating the drag operation and the flick operation.
  • the operation for starting the automatic scroll is not particularly limited, but the scroll may be started by, for example, a flick operation.
  • scrolling may be performed in the direction of the flick operation, and scrolling may be performed at a speed corresponding to the distance of the flick operation (the length of the finger trajectory on the screen).
  • the scrolling may be stopped by touching the scrolled text.
  • the line management information 30 only needs to be able to identify the position of the line or column of the sentence constituting the content 31, the above analysis is also accurate enough to identify the position of the line or column of the sentence constituting the content 31. As long as it is, recognition of characters is not essential.
  • link information for referring to related information may be generated using the recognized character, and the related information position list 32 may be used. May be generated.
  • the drawing link of “FIG. 1” may be associated with the line including the character string of the line management information 30. Then, a page (11 pages in the example of FIG. 11) in which the character string of “FIG. 1” is described independently (without other character strings before and after) is detected, and a blank part of this page is detected.
  • the related information position list 32 may be generated with the excluded range as the range of FIG.
  • the line display area is one line, but the line display area may be a plurality of lines. In this case, the same processing as in the case of enlarging and displaying in one line display area may be performed for each line in the line display area.
  • each block of the electronic book terminal 1, particularly the control unit 12 may be realized in hardware by a logic circuit formed on an integrated circuit (IC chip), or a CPU (Central Processing Unit) is used. It may be realized by software.
  • IC chip integrated circuit
  • CPU Central Processing Unit
  • the electronic book terminal 1 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Memory) that stores the program, a RAM (Random Access Memory) that expands the program, the program, and A storage device (recording medium) such as a memory for storing various data is provided.
  • An object of the present invention is a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program of the electronic book terminal 1 which is software for realizing the functions described above is recorded so as to be read by a computer. This can also be achieved by supplying the electronic book terminal 1 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).
  • Examples of the recording medium include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R.
  • IC cards including memory cards
  • semiconductor memories such as mask ROM / EPROM / EEPROM / flash ROM, PLD (Programmable logic device) and FPGA (Field Programmable Gate Array) Logic circuits can be used.
  • the electronic book terminal 1 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network.
  • the communication network is not particularly limited as long as it can transmit the program code.
  • the Internet intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network (Virtual Private Network), telephone line network, mobile communication network, satellite communication network, etc. can be used.
  • the transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type.
  • wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by wireless such as High Data Rate, NFC (Near Field Communication), DLNA (Digital Living Network Alliance), mobile phone network, satellite line, terrestrial digital network.
  • the present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.
  • the display control apparatus of the present invention refers to the management information indicating the position of each of a plurality of lines, and determines the expansion range in the line including the position on the basis of the specified position on the document content.
  • the enlargement range determination means further determines the enlargement range from the beginning of the next line within the range that can be enlarged and displayed in the enlargement display area.
  • an enlarged display means for displaying, in the enlarged display area, images obtained by enlarging the enlarged range determined by the enlarged range determining means in order from the image corresponding to the previous row.
  • the enlarged display means performs an enlarged display in an enlarged display area whose longitudinal direction is the longitudinal direction when the document content is vertically written, and the horizontal direction is the longitudinal direction when the document content is horizontally written. It is preferable to perform enlarged display in the enlarged display area.
  • the enlarged display area is enlarged in the longitudinal direction
  • the horizontal direction is enlarged in the longitudinal direction.
  • the document content can be enlarged and displayed in an easy-to-view manner depending on whether the document content is written vertically or horizontally.
  • whether the document content is vertical writing or horizontal writing may be determined based on a user input, depending on whether the longitudinal direction of the lines constituting the document content is vertical or horizontal. You may judge.
  • the expansion range determination means moves the determined expansion range across the rows in accordance with a user input operation.
  • the determined enlarged range is moved across the lines in accordance with the user's input operation, so that the user reads the text displayed in the enlarged display area by moving the enlarged range. Can proceed.
  • the enlarged display means displays an image in which the enlarged range is enlarged together with an image of the entire page of the document content.
  • the image with the enlarged range enlarged is displayed together with the image of the entire page of the document content, so that an enlarged image of a part of the page can be viewed while checking the layout of the entire page. .
  • the enlarged display means displays the enlarged range so as to be distinguishable from other parts of the image of the entire page in the image of the entire page.
  • the enlarged range is displayed so as to be distinguishable from other parts of the image of the entire page, so it is possible to tell the user which position in the layout of the entire page is enlarged. It can be easily recognized.
  • the display control apparatus refers to link information indicating related information related to the row of the document content, and image position information indicating a position of the related image in the document content corresponding to the related information, It is preferable that the image processing apparatus includes a related information processing unit that reads out the related image related to the row determined as the expansion range and displays the related image together with the image expanded in the expansion range.
  • the related image related to the line determined as the enlargement range is read and displayed together with the enlarged image of the enlargement range.
  • the user can perform the operations related to the rows and the related images without performing any operations such as scrolling and page switching. Can be viewed on the same screen.
  • the display control device may be realized by a computer.
  • a control program for causing the display control device to be realized by a computer by causing the computer to operate as each unit of the display control device, and A computer-readable recording medium on which it is recorded also falls within the scope of the present invention.
  • the present invention can be used for a device that displays page layout type document content or a device that displays such content on another display device.
  • Electronic book terminal (display control device) 20 Enlargement range determination unit (enlargement range determination means) 21 Display processing section (enlarged display means) 22 Related Information Processing Unit (Related Information Processing Means) 30 line management information (management information, link information) 31 Content (document content) 32 Related information position list (image position information)

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