JP2005092567A - Scroll controller, scroll control method, scroll control program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scroll controller, a scroll control method, a scroll control program, and a recording medium by which a screen is scrolled two-dimensionally according to order in which document images are read on the screen, by one-dimensional operation (for instance, vertical scroll, or the rotation of a button in a direction like a roller provided on a recent intelligence mouse), thereby displaying an image in a desired area on the screen. <P>SOLUTION: The scroll controller 1 used for a display device comprises a reading order decision means 12 which decides the reading order of document images displayed on the display device in correspondence with an amount of movement of a scroll indicating arrangement; and a display indicating means 13 which displays an area of a part of the document image, according to the reading order decided by the reading order decision means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a one-dimensional vertical scroll, a scroll control device capable of scrolling a screen two-dimensionally according to the reading order of document images on the screen, and thereby displaying an image of a desired area on the screen, The present invention relates to a scroll control method, a scroll control program, and a recording medium.

  In general, when a document image is displayed by an image display device of a personal computer, a PDA, or a portable telephone tower, the number of pixels of the document image is larger than the displayable size (number of vertical and horizontal pixels) of the display device. List display may not be possible.

  In order to eliminate this inconvenience, a reduced image display (thumbnail display or the like) is performed and a list display is also performed. However, in this display, the contents (characters) of the document image may not be decoded.

  Thus, it is generally performed to display a part of a large document image in a size larger than the thumbnail display and to scroll the screen by a scroll bar provided in the window. For example, in the case of a vertically written document, horizontal scrolling is performed, the information from the beginning of one line to the end of the line is viewed, and when the display is shifted to the next line, vertical scrolling is further performed using a vertical scroll bar. A dimensional operation is required, which is troublesome for the user. In particular, a terminal such as a PDA or a mobile phone that is operated while walking or with one hand, even if a seesaw key that can perform horizontal scrolling and vertical scrolling is provided, two-dimensional operation is not easy. Absent.

Furthermore, in Patent Document 1, as a method for displaying a document in any limited screen space of a PDA, even when there are a plurality of windows, only a necessary set of scroll bars is displayed, or a display position with respect to the entire document is displayed. A method of displaying a measure of the number is disclosed. In Japanese Patent Application Laid-Open No. 11-213011, the display area includes an area for displaying a thumbnail (reduced image) and an area for displaying a part of a document, and a part of the area is highlighted. Has been proposed to move up and down in synchronization with scrolling.
JP 2000-159941 A

  However, even in the technologies described in these reports, there is a problem that the user cannot read the document unless the vertical scroll and the horizontal scroll are repeated two-dimensionally, and the operability is extremely poor.

  The object of the present invention is to perform two-dimensional operation according to the reading order of the document images on the screen by one-dimensional operation (for example, scrolling up and down, or rotating a button in one direction like a roller provided in a recent intelligence mouse). It is an object of the present invention to provide a scroll control device, a scroll control method, a scroll control program, and a recording medium that can scroll a screen and thereby display an image of a desired area on the screen.

  The scroll control device of the present invention is used in an image display device, and a reading order determining means for determining a reading order of a document image to be displayed on the display device in accordance with a movement amount of the scroll instruction device; A display instructing unit for displaying a partial area of the document image according to the reading order determined by the reading order determining unit is provided.

  In the scroll control device of the present invention, a part of the document image can be displayed for each different type of image area of the document image.

  In the scroll control device of the present invention, the image area can be a character area, a photograph area, a figure area, or a table area composed of a plurality of character lines.

  In the scroll control device of the present invention, when a document image larger than the screen size of the display device is displayed, when the document image is horizontally written and the scroll device instructs to display the right side, the character line of the document image is displayed. Can have a function of scrolling from right to left.

  In the scroll control device of the present invention, when a document image larger than the screen size of the display device is displayed, the document image is vertically written, and when the lower display is instructed by the scroll device, the document image It is possible to provide a function for scrolling a character line from bottom to top.

  In the scroll control device of the present invention, when a document image larger than the screen size of the display device is displayed, when the end of the line is included in the screen and the next character is instructed to be displayed, the head of the next line is displayed. And a jump function for causing the display to jump to a screen that is moved down by at least one line.

  In the scroll control device of the present invention, when a document image larger than the screen size of the display device is displayed, if the screen includes an end of line and an instruction to display the next character is issued, the display is jumped before the display. In addition, it is possible to provide movement amount changing means for changing the display resolution and changing the movement amount on the screen in accordance with the display resolution of the changed display resolution with respect to the operation amount of the scroll device.

  In the scroll control device of the present invention, when displaying a document image larger than the screen size of the display device, the scroll control device includes resolution changing means for displaying the display resolution of the center region of the front and back regions different from the display resolution of the peripheral region. be able to.

  In the scroll control device of the present invention, scroll control and display can be performed in a user terminal device, and an image to be displayed on the display device can be created in a server connected via a network. In this case, the scroll control device can include a communication device.

  In the scroll control method of the present invention, it is possible to display a partial area of a document image according to the reading order of the document image displayed on the display device in accordance with the scroll movement amount.

  In the scroll control method of the present invention, a part of the document image can be displayed for each different type of image area of the document image.

  In the scroll control method of the present invention, the image area can be a character area, a photograph area, a figure area, or a table area composed of a plurality of character lines.

  In the scroll control method of the present invention, when a document image larger than the screen size of the display device is displayed, the document image is written horizontally. For example, when a right-side display instruction is given, the character line of the document image is Scroll from left to right.

  In the scroll control method of the present invention, when displaying a document image larger than the screen size of the display device, the document image is vertically written, and when a lower display instruction is given, the character line of the document image is You can scroll from bottom to top.

  In the scroll control method of the present invention, when a document image larger than the screen size of the display device is displayed, if the end of the line is included in the screen and the next character is instructed to be displayed, the head of the next line is displayed. And the display can be jumped to a screen that has been moved down by at least one line.

  In the scroll control method of the present invention, when a document image larger than the screen size of the display device is displayed, if the screen includes an end of line and a next character is instructed to be displayed, before the display is jumped. Furthermore, the display resolution can be changed, and the amount of movement on the screen can be changed according to the display resolution of the changed display resolution with respect to the scroll operation amount.

  In the scroll control method of the present invention, when a document image larger than the screen size of the display device is displayed, the display resolution of the center area of the front and back areas can be displayed differently from the display resolution of the peripheral area.

  In the scroll control method of the present invention, scroll control and display can be performed on a user terminal device, and an image displayed on the display device can be created on a server connected via a network.

  The scroll control program of the present invention can execute the above-described method by a computer, and the program is stored in a computer-readable recording medium of the present invention.

  In the present invention, when a document image is to be displayed by an image display device of a personal computer, PDA, or portable telephone tower, even if the display image is larger than the size of the display, the scroll control device can be easily read by the user. A scroll control method, a scroll control program, and a recording medium can be provided.

  FIG. 1 is a block diagram showing an embodiment of a scroll control device of the present invention. The scroll control device 1 includes a control main body 11, a reading order determination unit 12, a display instruction unit 13, a movement amount change unit 14, a resolution change unit 15, a scroll device 16, and a communication unit 17. . The control main body 11 can receive a scroll instruction signal from the scroll device 16 and perform scrolling according to the instruction. The reading order determination means 12 can determine the reading order of a column of documents such as columns. The display instruction unit 13 can display a part or all of the document image on the display device. The movement amount changing means 14 can change the ratio between the size of the scroll instruction and the screen scroll without synchronizing the scroll instruction by the scroll device 16 with the screen scroll. The resolution changing unit 15 can change the resolution of the whole or a part of the display area in accordance with a scroll instruction signal from the scroll device 16. The communication means 17 can connect to the Internet or the like.

  FIG. 2 is an explanatory view showing a first embodiment of the present invention. In FIG. 2, the scroll control device displays a partial region of the document image according to the reading order of the document image OG displayed on the display device (shown as the terminal 4) in accordance with the movement amount of the scroll instruction device 1. can do.

  The scroll control device 1 analyzes the document and specifies the reading order. The reading order is from top to bottom in the case of horizontal writing, and from right to left in the case of vertical writing, the identification is easy in these cases. In addition, when the document is constituted by a plurality of columns as a result of the document analysis, the reading order employed in the normal plurality of steps stored in advance in the memory is adopted.

  2A, 2B, 2C, and 2D, FIG. 2A is an original image (document image 11), and the document includes a character area and a graphic area. The character area includes a title and a text, and the scroll control device 1 analyzes the columns based on the font size and font and specifies the reading order. That is, the scroll control device 1 divides the document image 11 as a display target into a character area, a photograph area, a figure area, a table area, and the like by area identification processing. Further, reading order is given to these character area, photo area, figure area, and table area. For example, in the case of a horizontally written double-column magazine, the order is the title, left character area, and right character area.

  The display device (4) is provided with a mouse or arrow key scroll device (arrow key in FIG. 2), and the user can scroll the display image to an area to be displayed by the scroll device. As shown in FIG. 2B, when the title is displayed first, if a next display instruction (for example, operation of the right arrow key or operation of the down arrow key) is performed, FIG. As shown in FIG. 2, the display shifts from the title area to the left character area, and the display shifts to the right character area as shown in FIG. In FIGS. 2B to 2D, enlargement processing is not performed, and display at the same magnification is performed. If the document is an image like a word processor, for example, the document may be re-edited (such as reducing the number of characters per line), and the above display may be performed based on the processed document.

  Of course, if the user gives an instruction to display the previous area, the display area is scrolled backward, and for example, a predetermined command is preset to a key (for example, the up arrow key or the down arrow key). In this case, it is possible to jump to the first character region or the last character region.

  Further, in a structured application such as an electronic document of a word processor (software), if the data indicating the type of image (attribute information indicating the area) is provided in the form of a tag or the like, the area identification process becomes easy. In addition, when the reading order information is provided as a tag, it is not necessary to perform the area identification process.

  Thereby, a part of the document image is enlarged and displayed in a limited space, the visibility of the user becomes extremely high, and the contents of small characters in the character area can be easily understood. Furthermore, scrolling to the next area can be performed by an instruction from a scroll control device such as a mouse.

  3 (A), (B), (C), (D), and (E) are explanatory views showing a second embodiment of the present invention. FIG. 3A shows an original image, and the scroll control device can display an enlarged image on the display device (4). When the right arrow key is operated in the enlarged state, the image shifts from the state of FIG. 3B to the state of FIGS. 3C and 3D, and the end of the line is displayed as shown in FIG. Then, the screen is switched to the display including the beginning of the line by the next operation of the right arrow key.

  4 (A), (B), (C), and (D) are explanatory views showing a third embodiment of the present invention. In the first and second embodiments, zigzag display is simply performed at the same magnification, but once the entire document is displayed (reduced display), it returns from the end of the line to the beginning of the line. That is, for example, when the right arrow key is operated while the end of the line is displayed as shown in FIG. 4A, the display image is reduced as shown in FIG. 4B, and the right arrow key is further pressed. When operated, the display image is further reduced as shown in FIG. Thereafter, when the right arrow key is operated, an area for displaying the head of the line is enlarged as shown in FIG.

  5A and 5B are explanatory views showing a fourth embodiment of the present invention. In the first to third embodiments, all the areas are displayed with the same resolution as the normal display in the display screen, but in the fourth embodiment, only the central portion is enlarged and the center in the display screen is displayed. In an area other than the area, a display smaller than the center is performed. That is, in FIG. 5A, the central portion is displayed in an enlarged manner, but the upper and lower areas are displayed in a reduced size, and in FIG. 5B, the central portion is displayed in an enlarged manner. The left and right areas are displayed in a reduced size. The reduced area may be reduced stepwise (one step, two steps, etc.) with respect to the enlarged region, or may be continuously reduced.

It is a block diagram which shows embodiment of this invention. It is explanatory drawing which shows 1st Embodiment of this invention. It is explanatory drawing which shows 2nd Embodiment of this invention. It is explanatory drawing which shows 3rd Embodiment of this invention. It is explanatory drawing which shows 4th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Scroll control apparatus 11 Control main-body part 12 Reading order determination means 13 Display instruction | indication means 14 Movement amount change means 15 Resolution change means 16 Scroll apparatus 17 Communication means

Claims (20)

In a scroll control device used for a display device,
Reading order determining means for determining the reading order of the document images displayed on the display device in accordance with the amount of movement of the scroll instruction device;
A scroll control apparatus comprising display instruction means for displaying a partial region of a document image in accordance with the reading order determined by the reading order determination means.   The scroll control apparatus according to claim 1, wherein a part of the document image is displayed on the display device for each different type of image area of the document image.   The scroll control apparatus according to claim 1 or 2, wherein the image area is a character area, a photograph area, a figure area, or a table area composed of a plurality of character lines.   In the case of displaying a document image larger than the screen size of the display device, when the document image is horizontally written and the right side display is instructed by the scroll device, the character line of the document image is scrolled from right to left. The scroll control device according to any one of claims 1 to 3, further comprising:   When displaying a document image larger than the screen size of the display device, the document image is vertically written, and when a lower display is instructed by the scroll device, the character line of the document image scrolls from bottom to top. The scroll control device according to any one of claims 1 to 4, further comprising:   In the case of displaying a document image larger than the screen size of the display device, when the end of a line is included in the screen and the next character is instructed to be displayed, the head of the next line is displayed, and at least one line is repeated. 6. The scroll control apparatus according to claim 1, further comprising a jump function for jumping the display to a lowered screen.   In the case of displaying a document image larger than the screen size of the display device, when the end of a line is included in the screen, and when the next character is instructed to be displayed, the display resolution is changed before jumping the display, The scroll control device according to claim 6, further comprising: a moving amount changing unit that changes a moving amount on the screen in accordance with the display resolution of the display resolution changed with respect to the operation amount of the scroll device.     The display device further comprises resolution changing means for displaying a display resolution of a central area of the front and back areas different from a display resolution of a peripheral area when displaying a document image larger than the screen size of the display device. The scroll control device according to any one of 1 to 7.   9. The scroll according to claim 1, wherein scroll control and display are performed in a user terminal device, and an image to be displayed on the display device is created in a server connected via a network. Control device. In a scroll control method used for an image display device,
A scroll control method characterized by displaying a partial region of a document image in accordance with the reading order of the document image displayed on the display device in accordance with the scroll movement amount.   The scroll control method according to claim 10, wherein a part of the document image is displayed for each different type of image area of the document image.   The scroll control method according to claim 10 or 11, wherein the image area is a character area, a photograph area, a figure area, or a table area composed of a plurality of character lines.   When displaying a document image larger than the screen size of the display device, the document image is horizontally written, and when a right-side display instruction is given, the character line of the document image is scrolled from right to left. The scroll control method according to any one of claims 10 to 12.   When displaying a document image larger than the screen size of the display device, the document image is vertically written, and when a lower display instruction is given, the character line of the document image is scrolled from bottom to top. The scroll control method according to any one of claims 10 to 13, characterized in that:   In the case of displaying a document image larger than the screen size of the display device, when the end of a line is included in the screen and the next character is instructed to be displayed, the head of the next line is displayed, and at least one line is repeated. The scroll control method according to claim 10, wherein the display is jumped to a lowered screen.   In the case of displaying a document image larger than the screen size of the display device, when the display includes the end of a line and the next character is displayed, the display resolution is changed before the display jumps, 16. The scroll control method according to claim 15, wherein the amount of movement on the screen is changed according to the display resolution of the changed display resolution with respect to the scroll operation amount.     17. When displaying a document image larger than the screen size of the display device, the display resolution of the center area of the front and back areas is displayed differently from the display resolution of the peripheral area. The scroll control method described in 1.   The scroll control according to any one of claims 10 to 17, wherein scroll control and display are performed in a user terminal device, and an image to be displayed on the display device is created in a server connected via a network. Method.   A scroll control program capable of executing the method according to any one of claims 10 to 18 by a computer.   A computer-readable recording medium in which the program according to claim 19 is stored.

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