JP2010122869A - Information browsing device, information browsing method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To browse a text comfortably even if the text has a long line with an information browsing device, such as a mobile phone with a small display screen size. <P>SOLUTION: First, only the text portion in a content image is displayed and scrolled according to user operation for displaying. Then, when scrolled to the end of the screen and if tried to scroll furthermore, the text image is continuously displayed with being shifted by one line upwardly. That is, the head of the second line is displayed just on the right side of the end of the first line. Accordingly, a user can continue reading the following line only by scrolling laterally without moving his or her visual line position. The following line is continuously displayed each time the line end reaches the screen end, thereby the user can read the long text to the end without stress only by scroll operations toward the lateral direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information browsing apparatus, and more particularly, to an information browsing apparatus that can comfortably browse text even on a small screen.

  In recent years, along with the advancement of portable information terminals such as mobile phones, in addition to the compact contents created for portable information terminals as in the past, rich contents created on the premise of browsing on a PC etc. Electronic documents, ordinary web pages, and the like can be browsed with a portable information terminal.

  The browsing of these contents is mainly due to the benefits of faster CPUs and increased memory capacity for processing large amounts of information, but on the other hand, portable information terminals have screens. Therefore, there remains a fundamental problem that visibility is not good for viewing huge contents for PC.

  Many of the content viewers for PC installed in portable information terminals have a function of enlarging and displaying content so that details can be viewed even on a small screen. However, since only a part of a huge content can be browsed during enlarged display, it is inevitably necessary to browse while scrolling up / down / left / right.

  In particular, when browsing text, as shown in FIG. 1, the display area of the portable information terminal is browsed while scrolling in a Z-shape in accordance with the original content line, which is very troublesome.

  Such a problem occurs because the length of one line is longer than the screen width of the display area of the portable information terminal. Therefore, as one solution, a technique for reshaping sentences for portable information terminals is known. For example, many full browsers for mobile phones (for example, Opera Mobile (registered trademark): Opera Software Co., Ltd.), when displaying Web pages for PCs, do not allow text to fit within the screen. It has a function to change the line feed position and the layout of the Web page so that it can be browsed only by vertical scrolling.

  However, since such a technique changes the layout without permission, a display different from the intention of the Web page creator is displayed. Moreover, since the appearance is different between browsing the same Web page on a PC and browsing on a portable information terminal, there is a problem that the user is confused.

  Furthermore, if the data is composed of text (HTML) such as a Web page, formatting such as changing the line feed position can be easily performed, but if the text to be viewed is image data, the line feed position is changed. It is difficult to perform such shaping, and the above method cannot be applied.

  Patent Literature 1 has been proposed as a technique that solves these problems and allows a long sentence to be browsed only by scrolling in one direction without changing the layout. As shown in FIG. 2, when the document image 201 is viewed while scrolling and scrolling to the end 204 of one line is completed, if the scroll operation is performed to the right, the next line is automatically displayed. This is a technique in which the display position is switched to the top 205. That is, it can be said that this technique eliminates the labor of the oblique movement 101 in FIG. In FIG. 2, display positions 202 and 203 indicate portions displayed on the display screen.

JP 2002-366135 A

  In the technique described in Patent Document 1, when the display position is switched from the right end to the left end of the sentence (when the display position is switched from the display position 202 to the display position 203), the display screen has been smoothly scrolled until now. However, it suddenly appears to switch to a completely different screen. Also, immediately before the display area moves, the user was looking at the end 204 of a line, that is, the right edge of the display screen. After the next screen change, the line head 205 of the next line, that is, the left edge of the display screen. Need to see. Moving the line of sight from the right end to the left end at the timing when the screen switches instantly is a burden for the user and tends to lose sight of the line to be read.

[Object of the present invention]
Accordingly, an object of the present invention is to provide an information browsing apparatus that can comfortably browse a sentence whose length is one line longer than the display screen width of the information browsing apparatus.

The information browsing apparatus according to the present invention is:
An information browsing apparatus that displays a text image including a plurality of lines on a screen while scrolling according to an input operation instructing scrolling,
When an input operation instructing to scroll the sentence image further forward than the line end portion is performed, the first image including the line end portion of the display target line displayed on the screen is displayed. A display image in which a second image including a line end portion continuous with the line end portion of the display target row of the next or previous row of the display target row is connected to the image is displayed on the screen.

The information browsing method according to the present invention is as follows.
A first step in which a computer displays a text image including a plurality of lines on a screen while scrolling according to an input operation instructing scrolling;
When the computer performs an input operation instructing to scroll the sentence image further forward than the line end portion, the line end portion of the display target line displayed on the screen is displayed. A display image in which a second image including a row end portion continuous with the row end portion of the display target row of the next or previous row of the display target row is connected to the first image including the display target row on the screen. And a second step.

The program according to the present invention is:
A program for causing a computer to function as an information browsing device,
In the computer,
In accordance with an input operation for instructing scrolling, a process of displaying a text image including a plurality of lines on a screen while scrolling,
When an input operation instructing to scroll the sentence image further forward than the line end portion is performed, the first image including the line end portion of the display target line displayed on the screen is displayed. Processing for displaying, on the screen, a display image in which a second image including a line end portion that is continuous with the line end portion of the display target row of the next or previous row of the display target row is connected to the image. Let it run.

  According to the present invention, it is possible to obtain an effect that it is possible to comfortably browse a sentence whose length is one line longer than the display screen width.

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

[First embodiment of the present invention]
Referring to FIG. 3, the first embodiment of the information browsing apparatus according to the present invention includes a content data input unit 1, a content image generation unit 2, a sentence image cutout unit 3, an image connection unit 4, and a connection. The image information storage means 5, line feed width extraction means 6, display image cutout means 7, display range operation means 8, and output means 9 are configured.

  The content data input unit 1 captures content data to be browsed by the user from the outside and sends it to the content image generation unit 2. The content data import destination may be a storage device (not shown) or an external server connected via a network.

  The content image generation unit 2 generates content image data for displaying a content image based on the content data input from the content data input unit 1.

  The text image cutout unit 3 cuts out a portion (text image data) corresponding to the text image in the content image from the content image data generated by the content image generation unit 2. Then, the cut-out sentence image data is transferred to the image connecting means 4 and the line feed width extracting means 6 and stored in the connected image information storage means 5 as initial connected image data. At that time, the sentence image cutout unit 3 also stores “0” as a reference in the linked image information storage unit 5 as the shift amount S corresponding to the sentence image data. Here, the shift amount S is information indicating the number of lines of text image data shifted in the direction orthogonal to the line direction with respect to the initial connected image data, and the text image data is the initial connected image data. Since it is stored in the linked image information storage means 5 as data, the shift amount S is “0”.

  The line feed width extraction means 6 performs line extraction processing on the text image data input from the text image cutout means 3 and processes the distance between the extracted lines (for example, the distance from the top of one line to the top of the next line). ) Is extracted as the line feed width.

  The display range operation means 8 is an input means such as a direction key or a touch panel provided in the information browsing apparatus, and the user can input the scroll direction of the text image using this. The input scroll direction is sent to the display image cutout means 7.

  The display image cutout unit 7 includes a scroll direction input from the display range operation unit 8, a predetermined scroll amount, and a current position of the display range (a position on a connected image represented by connected image data to be described later). From the above, the position of the display range after scrolling is calculated. Note that the size of the display range depends on the screen size of the output means 9. If the display range after scrolling falls within the connected image represented by the connected image data stored in the connected image information storage unit 5, the connected image data stored in the connected image information storage unit 5 is used. Display image data corresponding to the new display range is cut out and sent to the output means 9. On the other hand, when the display range after scrolling protrudes to the left and right from the connected image, that is, when the user performs a scroll operation outward from the connected image, the scroll direction is sent to the image connecting means 4 and the image is displayed. Display image data is cut out from the connected image data newly stored by the connecting means 4.

  The output unit 9 displays an image represented by the display image data sent from the display image cutout unit 7 on the display screen.

  The image connection means 4 reads the connection image data from the connection image information storage means 5, and a connection representing a new connection image in which the sentence image represented by the sentence image data is connected to the left end or the right end of the connection image represented thereby. Image data is generated and stored again in the linked image information storage means 5. Whether the text image is connected to the left end or the right end of the connected image is determined according to the scroll direction sent from the display image cutout means 7. At the time of connection, the line feed width extracted by the line feed width extraction means 6 is connected by shifting upward or downward, and the shift amount S is also stored in association with the newly connected text image data. .

  Note that the information browsing apparatus according to the present embodiment can be realized by a computer, and when realized by a computer, for example, is as follows. A disk, a semiconductor memory, and other recording media on which a program for causing a computer to function as an information browsing device is prepared are prepared, and the computer is caused to read the program. The computer controls its own operation according to the read program, so that the content data input means 1, the content image generation means 2, the sentence image cutout means 3, the image connection means 4, the line feed width extraction means 6 and the display are displayed on the computer. The image cutout means 7 is realized.

[Description of Operation of First Embodiment]
Next, the operation of the present embodiment will be described in detail.

  Referring to the flowchart of FIG. 4, when the content data of the content to be browsed is input from the content data input unit 1, the content image generation unit 2 generates content image data for displaying the content image (step). ST401). For example, if the browsing target is a Web page, the input HTML format is interpreted and the Web page is rendered. Or if it is image data, such as JPEG, a decoding process will be performed.

  Next, the sentence image cutout means 3 cuts out the part corresponding to the sentence area read by the user from the content image data representing the content image manually or automatically (step ST402). As a method of cutting out manually, the content image is displayed on the display unit of the information browsing device, and the upper left and lower right of the text area that the user wants to read is specified by using the direction key provided in the information browsing device. The method is fine. Alternatively, when a touch panel is mounted on the information browsing apparatus, the sentence area may be directly cut out by surrounding it with a pen or a finger. As a method of automatically cutting out, especially when a content image is rendered by itself, such as a Web page, it is known where the text area is, so that the place can be automatically cut out. If there are multiple text areas, the user may select which text area the user wants to read, or automatically select and cut out according to criteria such as the closest to the center of the screen. Also good.

  Thereafter, the text image cutout unit 3 sends the cut out text image data to the image connection unit 4 and the line feed width extraction unit 6 and stores it in the connection image information storage unit 5 as initial connection image data. At that time, the reference “0” is also stored as the shift amount S corresponding to the text image data (step ST403).

  Next, the display image cutout means 7 cuts out data corresponding to the size of the display screen of the output means 9 from the sentence image data stored in the connected image information storage means 5, and outputs the cutout data as display image data. 9 (step ST404). Thereby, the output means 9 displays the image represented by display image data on a display screen.

  After that, processing is performed according to user interaction. While viewing the display image, the user inputs the scroll direction using the display range operation means 8 (step ST405). When the scroll direction is input from the display range operation unit 8, the display image cutout unit 7 performs post-scrolling based on the input scroll direction, a predetermined scroll amount, and the current position of the display range. The position of the display range is obtained (step ST406).

  Here, if the display range after scrolling is within the connected image represented by the connected image data stored in the connected image information storage means 5 (both steps ST407 and ST409 are NO), the connected image is displayed. A portion corresponding to the display range after scrolling is cut out from the data and output to the output means 9 to wait for the next user operation (step ST404).

  On the other hand, when the display range after scrolling exceeds the right end of the connected image represented by the connected image data stored in the connected image information storage unit 5, that is, the user exceeds the right end of the connected image. If the user wants to scroll to the right (YES in step ST407), the display image cutout means 7 sends the scroll direction “right” to the image connecting means 4. As a result, the image connecting means 4 reads the connected image data stored in the connected image information storage means 5, and the sentence image represented by the sentence image data is displayed at the right end of the connected image represented thereby by the line feed width. Connected image data representing a new connected image connected by shifting upward by an amount is generated and stored in the connected image information storage means 5 (step ST408). Thereafter, the display image cutout unit 7 performs the process of step ST407 again, and when the determination result is YES, the scroll direction “right” is sent again to the image connecting unit 4. When the length of the text image in the row direction is shorter than the length of the display range in the row direction, the determination result in step ST407 may be “YES” multiple times.

  Conversely, if the display range after scrolling exceeds the left end of the connected image, that is, if the user attempts to scroll left beyond the left end of the connected image (YES in step ST409), the display is performed. The image cutout means 7 sends the scroll direction “left” to the image connection means 4. As a result, the image connecting means 4 reads the connected image data stored in the connected image information storage means 5, and the sentence image represented by the sentence image data is displayed at the left end of the connected image represented thereby by the line feed width. Connected image data representing a new connected image connected by shifting downward by an amount is generated and stored in the connected image information storage means 5 (step ST410). Thereafter, the display image cutout unit 7 performs the process of step ST409 again.

  In this embodiment, the line feed width of the sentence image is obtained based on the sentence image data input from the sentence image cutout means 3 in the present embodiment. Absent. When the content data is a Web page or the like, the line feed width information when the content image generating unit 2 renders each line may be used. Alternatively, an interface that allows the user to specify the line feed width may be prepared and input manually.

  Then, by connecting the text image data to the connected image data, when both the determination results in step ST407 and step ST409 are NO, the display image cutout means 7 selects a portion corresponding to the display range after scrolling from the connected image data. It cuts out and outputs to the output means 9, and waits for the next user operation (step ST404).

  Next, the operation of the present embodiment will be described with a specific example. In this specific example, a case where an electronic text image 501 composed of an image and text as shown in FIG. 5 is viewed on the portable terminal 601 shown in FIG. 6 will be described as an example. Note that each means 1 to 9 shown in FIG. Further, in the following description, instead of an expression such as “store text image data in the connected image information storage unit 5”, an expression such as “store text image in the connected image information storage unit 5” is used. The contents are the same.

  As shown in FIG. 6, the screen 602 of the portable terminal 601 is small, and only a part of the screen 602 enters the screen 602 even if the text portion of the electronic document image 501 is read. Further, when the reduced image 701 obtained by reducing the electronic document image 501 is displayed as shown in FIG. 7, the text is too small to be read regardless of the figure.

  Therefore, the portable terminal 601 uses the sentence image cutout unit 3 to cut out the sentence image 801 from the electronic document image 501 as shown in FIG. 8, and stores it in the connected image information storage unit 5 as an initial connected image. At this time, information of S = 0 is also stored in the linked image information storage unit 5 as the shift amount 802.

  In the initial state, the display image cutout means 7 is used to output the upper left part of this connected image to the screen. FIG. 9 shows the position of the display range 901 in the connected image and how the screen is output.

  The portable terminal 601 can move the display range in four directions, up, down, left, and right, and scroll the screen by operating a cross-shaped cross button that functions as the display range operation unit 8. If the user presses the right side of the cross button 1001 as shown in FIG. 10 to read the text, the display range moves to the right, and the text image appears to scroll to the left on the screen of the mobile terminal 601.

  Here, it is assumed that the user further presses the right side of the cross button 1001 in order to read the sentence. Then, since the display range protrudes from the right end of the connected image, the image connecting unit 4 connects the new sentence image on the connected image information storage unit 5 to the right side of the connected image. At that time, since the image is connected to the right side of the image of S = 0, the shift amount S of the new sentence image is 1 plus 1. Therefore, when connecting, the connection is made in a state shifted by one line from the standard state (FIG. 11). In addition, data for drawing the dividing line 1101 is written in the connected portion at the time of display. By doing so, it is possible to inform the user that the user has returned from the end of the line to the beginning of the line during display.

  Further, when the user presses the cross button to the right and the display range extends again from the right end of the connected image, the new sentence image is similarly connected to the right side of the connected image. Since it is connected to the right side of the image of S = 1, the shift amount of this new sentence image is 2, and it is shifted up by two lines and connected (FIG. 12).

  As another example, in the initial state, the user first presses the bottom of the cross button to move the display range to the second half of the sentence image as shown in FIG. 13, and then press the left side of the cross button to change the display range. Suppose you move it to the left. In this case, since the display range extends beyond the left side of the connected image, the image connecting unit 4 connects the new text image to the left side of the connected image as shown in FIG. In this way, when connecting to the left side of the image, the value obtained by subtracting 1 from the shift amount of the images to be connected becomes the shift amount of the new text image, so the shift amount is −1 and not in the upward direction but in the downward direction. Connect with a shift of one line.

  In the above description, the case where the sentence is written horizontally is described, but it goes without saying that the sentence may be written vertically. In that case, when the user performs a scroll operation up and down and performs a scroll operation beyond the lower end of the line, the copied text image is continuously displayed at the bottom.

  Further, in FIG. 12, an example in which an image of S = 0 that is not already displayed is left connected is described, but in this way, the connected image becomes larger each time the sentence image is connected, and the storage device The condition is bad because it compresses the capacity of. Therefore, a text image that is not included in the display range may be deleted from the linked image at a timing such as when a new image is linked or when the size of the linked image exceeds a certain amount. Even in that case, when the display range returns to the deleted sentence image again, the images shifted in the reverse direction as shown in FIG. 14 are correctly connected, so the user can freely read the sentence back and forth. Can do.

  In this embodiment, when a sentence image is connected to a connected image, the sentence image is shifted up and down. However, as another operation, the sentence image may be connected right and left without being shifted up and down. In that case, since the image is not shifted, as shown in FIG. 24, it is necessary to read while shifting the line of sight to the lower line one by one. It is easy.

[Effect of the first embodiment]
According to the present embodiment, it is possible to obtain an effect that it is possible to comfortably browse a sentence having one line longer than the display screen width.

  The reason will be described with reference to FIG. In the present embodiment, first, only the text portion in the content image is displayed, and is scrolled and displayed according to the user operation. Then, when scrolling to the screen edge, if further scrolling is attempted, the sentence image is continuously displayed in a state shifted up by one line. That is, the head of the second line is displayed immediately to the right of the end of the first line. Therefore, the user can continue to read the next line as it is by simply scrolling sideways without moving the viewing position. Each time it comes to the screen edge, the next line is displayed in succession, so that the user can read a long sentence without stress by only scrolling in the horizontal direction. Also, when scrolling in the reverse direction, since the previous line is displayed one after another so that it can be read back, it can be read back in the reverse direction, just as the text is read.

  Further, in the present embodiment, when displaying the connected portion of the image, the dividing line 1101 is drawn on the connected portion as shown in FIG. 11, so that the line has returned from the end to the beginning of the line during scrolling. On the other hand, it is possible to obtain an effect that the user can easily recognize that the user has returned from the beginning of the line to the end of the line.

[Second Embodiment of the Present Invention]
Next, a second embodiment of the information browsing apparatus according to the present invention will be described in detail. In the first embodiment, since the connected image information storage means 5 for storing connected image data representing a connected image obtained by connecting a plurality of text images is required, a large storage capacity is required. Therefore, the present embodiment can obtain the same effects as those of the first embodiment with a small storage capacity.

  Referring to FIG. 15, the information browsing apparatus according to the present embodiment includes a sentence image storage unit 12 instead of the connection image information storage unit 5, and instead of the image connection unit 4 and the display image cutout unit 7. The point which is provided with the display range correction | amendment means 10 and the display image generation means 11 differs from the information browsing apparatus of 1st Embodiment shown in FIG.

  The sentence image storage unit 12 stores the sentence image data cut out from the content image data by the sentence image cutout unit 3.

  Each time a scroll direction is input from the display range operation unit 8, the display range correction unit 10 receives the input scroll direction, a predetermined scroll amount, and the current position of the display range (represented by text image data). The position of the display range after scrolling is calculated based on the position on the sentence image. If the display range after scrolling protrudes from the left end or right end of the sentence image, the position of the display range is corrected as necessary, and information indicating the corrected position is sent to the display image generating means 11. If correction is not necessary and the display range does not protrude from the text image, information indicating the position of the display range after scrolling calculated first is sent to the display image generation means 11.

  The display image generation unit 11 processes the text image data stored in the text image storage unit 12 based on the information indicating the position of the display range sent from the display range correction unit 10 to generate display image data. To do.

  Note that the information browsing apparatus of the present embodiment can also be realized by a computer in the same manner as the information browsing apparatus of the first embodiment.

[Description of Operation of Second Embodiment]
Next, the operation of the present embodiment will be described in detail with reference to the flowchart of FIG.

  First, the content image generation means 2 generates content image data representing the content image from the content data (step ST1601), and then the sentence image cutout means 3 cuts out the sentence image data from the content image data and stores it in the sentence image storage means 12. Store (steps ST1602, ST1603).

  Thereafter, the display image generation means 11 cuts out the initial display portion from the sentence image data stored in the sentence image storage means 12 and outputs it to the output means 9 (step ST1604).

  From this point on, processing is performed according to user interaction. While viewing the display image, the user inputs the scroll direction using the display range operation means 8 (step ST1605). When the scroll direction is input from display range operation unit 8, display range correction unit 10 calculates position information indicating the position of the display range after scrolling (step ST1606).

  Thereafter, the display range correction means 10 performs correction processing on the position information of the display range so that the display range after scrolling does not completely protrude from the text image (steps ST1607 to ST1610). Specifically, when the position of the display range is set to the position represented by the position information calculated in step ST1606, the reference point set at an arbitrary position within the display range will protrude outside the sentence image. Corrects the position information of the display range so that the reference point is inside the sentence image. When the reference point protrudes to the right side of the text image, the position information of the display range is corrected so that the X coordinate of the reference point changes by WT to the left (-X direction) and LF by the bottom (+ Y direction). (Step ST1607 is YES, ST1608) If the reference point protrudes to the left of the text image, the X coordinate of the reference point is displayed to change by WT to the right (+ X direction) and by LF upward (-Y direction). The position information of the range is corrected (step ST1609 is YES, ST1610). This process is repeated if the image sticks out even after correction. Here, WT is the width of the entire sentence image, and LF is the line feed width of the sentence of the sentence image.

  Thereafter, the display range correction unit 10 sends the position information of the display range to the display image generation unit 11 as information indicating the cutout area of the output image data (step ST1611). When the position information of the display range is corrected in step ST1608 or step ST1610, the corrected position information is sent to the display image generation means 11, and neither the process of step ST1608 nor the process of step ST1610 is performed. Sends the position information calculated in step ST1606 to the display image generation means 11.

  The display image generation unit 11 cuts out the text image data from the text image storage unit 12 according to the information indicating the cut-out area sent from the display range correction unit 10, but the text in which a part of the cut-out area is represented by the text image data. The image may protrude from the image.

  Therefore, the display image generating means 11 first checks whether or not the cutout region protrudes to the right side of the text image (step ST1612). If it is protruding, the protruding portion is moved WT to the left and LF downward (step ST1613). If it still moves right after moving, repeat this process.

  Subsequently, the display image generating means 11 also checks whether or not the cutout region protrudes to the left side of the text image (step ST1614). If it is overhanging, the overhanging portion is moved WT to the right and LF up (step ST1615). If it still moves to the left after moving, repeat this process.

  Thereafter, the display image generation unit 11 cuts out the sentence image data corresponding to the cutout area from the sentence image storage unit 12 and outputs it as output image data to the output unit 9. At that time, if the cut-out area is divided into two parts, the corresponding sentence image data is cut out from the sentence image storage means 12, and the two cut-out sentence image data are connected from left to right in order from the top. To generate output image data (steps ST1616 and ST1616). The output unit 9 displays an image according to the output image data sent from the display image generation unit 11. After that, the information browsing apparatus waits for an input range operation waiting for a display range operation from the user.

  Next, the operation of the present embodiment will be specifically described using an example. Here, as in the specific example of the first embodiment, a case in which a text image 801 cut out from the electronic document image shown in FIG. 8 is viewed will be described as an example. As shown in FIGS. 9 and 10, in this specific example, the user can also browse the text image displayed on the screen by moving the display range with the cross button and scrolling. In this specific example, as shown in FIG. 17, the upper left of the display range of the text image is determined as the reference point.

  When the display range is moved by a user operation and the reference point protrudes outside the sentence image, the display range is corrected by the display range correction unit 10. When the user presses the right of the cross button and the reference point of the display range protrudes to the right side of the sentence image, the display range is moved to the left by WT and downward by LF (FIG. 19). Note that WT and LF are the horizontal width and line feed width of the text image, respectively (FIG. 18). Further, when the display range is moved to the left by the user operation and the reference point protrudes from the left side of the sentence image, the display range is moved to the right by WT and upward by LF (FIG. 20).

  When the display area is moved by the user, the display image clipping region is determined. Now, as shown in FIG. 21, when the display range is set as a cutout region, the text image protrudes from the right side. The protruding part of the cutout area is moved to the left by WT and down to LF, and the cutout area is divided into two rectangles. Next, images are cut out in order from the top of these two cut-out areas, and connected from left to right as shown in FIG. The concatenated image is a display image and is displayed on the terminal screen. This display is the same display as in the first embodiment shown in FIG.

  Note that, by setting LF used as the vertical shift amount of the display range and cutout region to 0, a display without shifting as shown in FIG. 24 is possible as in the first embodiment.

[Effects of Second Embodiment]
According to the present embodiment, in addition to the effect obtained in the first embodiment, the effect that the storage capacity to be used can be reduced can be obtained. The reason is that only the text image data representing the text image is stored in the text image storage means 12, and when the display range extends beyond the text image, the display image generation means 11 is in a portion where the display range extends. Find out which part of the text image is to be displayed (steps ST1613 and ST1615 in FIG. 16), cut out from the text image data the data corresponding to the found part and the data corresponding to the part that does not protrude from the display range. This is because the display data is generated by concatenating the two data.

  The present invention is preferably used when a sentence with a long line is viewed on a portable terminal having a small display screen.

It is the figure which showed the difficulty at the time of reading wide content with a portable information terminal. It is the figure which showed the content of the technique described in patent document 1. FIG. It is a block diagram which shows the structure of the 1st Embodiment of this invention. It is a flowchart which shows the operation | movement of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the specific example of the 1st Embodiment of this invention. It is a figure explaining the Example of the 1st Embodiment of this invention. It is a block diagram which shows the structure of the 2nd Embodiment of this invention. It is a flowchart which shows the operation | movement of the 2nd Embodiment of this invention. It is a figure explaining the specific example of the 2nd Embodiment of this invention. It is a figure explaining the specific example of the 2nd Embodiment of this invention. It is a figure explaining the specific example of the 2nd Embodiment of this invention. It is a figure explaining the specific example of the 2nd Embodiment of this invention. It is a figure explaining the specific example of the 2nd Embodiment of this invention. It is a figure explaining the specific example of the 2nd Embodiment of this invention. It is a figure which shows the outline | summary of this invention. It is a figure which shows the operation | movement when not shifting the image of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Content data input means 2 ... Content image generation means 3 ... Text image cut-out means 4 ... Image connection means 5 ... Connection image information storage means 6 ... Line feed width extraction means 7 ... Display image cut-out means 8 ... Display range operation means 9 ... Output means 10 ... display range correction means 11 ... display image generation means 12 ... text image storage means

Claims (10)

An information browsing apparatus that displays a text image including a plurality of lines on a screen while scrolling according to an input operation instructing scrolling,
When an input operation instructing to scroll the sentence image further forward than the line end portion is performed, the first image including the line end portion of the display target line displayed on the screen is displayed. A display image in which a second image including a row end portion that is continuous with the row end portion of the display target row of the next or previous row of the display target row is connected to the image is displayed on the screen. Information browsing device. The information browsing apparatus according to claim 1,
Display image cutout means for cutting out display image data representing a display image to be displayed on the screen from connected image data representing a connected image obtained by connecting a plurality of the sentence images;
An information browsing apparatus comprising: display means for performing display on the screen according to display image data cut out by the display image cutout means. In the information browsing apparatus according to claim 2,
A concatenated image storage unit for storing concatenated image data;
Input means for performing an input operation for instructing scrolling, and
The display image cutout unit updates a display range indicating a range to be displayed on the screen in the connected image every time an input operation for instructing scrolling is performed in the input unit, and corresponds to the updated display range. The information browsing apparatus is characterized in that display image data to be cut out from connected image data stored in the connected image storage unit. In the information browsing apparatus according to claim 3,
The display image cut-out means stores, in the continuous image storage unit, new connected image data representing a new connected image obtained by further connecting the sentence image to the connected image when the updated display range extends beyond the connected image. An information browsing apparatus characterized by cutting out display data after storing. The information browsing apparatus according to claim 4,
The display image cut-out means stores a sentence image that is no longer included in the updated display range among the sentence images constituting the connected image, and stores it in the connected image storage unit corresponding to the sentence image. An information browsing apparatus, wherein the sentence image data is deleted. The information browsing apparatus according to claim 1,
The first image data corresponding to the first image and the second image data corresponding to the second image are cut out from the sentence image data representing the sentence image, and the cut out first image data and Display image generation means for generating display image data representing the display image by connecting the second image data;
An information browsing apparatus comprising: display means for performing display on the screen according to the display image data generated by the display image generating means. The information browsing apparatus according to claim 1,
The information browsing apparatus, wherein the first image and the second image are shifted by a line feed width in a direction orthogonal to a row direction. The information browsing apparatus according to any one of claims 1 to 7,
An information browsing apparatus, wherein when displaying a connected portion of an image, a dividing line is drawn on the connected portion. A first step in which a computer displays a text image including a plurality of lines on a screen while scrolling according to an input operation instructing scrolling;
When the computer performs an input operation instructing to scroll the sentence image further forward than the line end portion, the line end portion of the display target line displayed on the screen is displayed. A display image in which a second image including a row end portion continuous with the row end portion of the display target row of the next or previous row of the display target row is connected to the first image including the display target row on the screen. The information browsing method characterized by including the 2nd step to do. A program for causing a computer to function as an information browsing device,
In the computer,
In accordance with an input operation for instructing scrolling, a process of displaying a text image including a plurality of lines on a screen while scrolling,
When an input operation instructing to scroll the sentence image further forward than the line end portion is performed, the first image including the line end portion of the display target line displayed on the screen is displayed. Processing for displaying, on the screen, a display image obtained by connecting a second image including a line end portion that is continuous with the line end portion of the display target row of the next or previous row of the display target row to the image. The program to be executed.

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