JP2006011358A - Apparatus, method, and program for displaying information, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply read content data including moving picture data as compared with the conventional procedure when reading the content data by scrolling reproduction. <P>SOLUTION: An information display apparatus comprises a scrolling operation control part 133 for scrolling and reproducing content data in which a plurality of element data are arranged along one coordinate axis in a reproducing area from the reproduction start point of the content data to the reproduction end point, a moving picture reproduction control part 171 for reproducing moving picture in the reproducing area when the element data are moving picture data, and an output element data decision part 153 for detecting whether the display area of the moving picture data are included in the reproducing area by scrolling reproduction or not. When it is detected that the display area of the moving picture data are included in the reproducing area on the basis of the detection result of the output element data decision part 153, the scrolling operation control part 133 stops scrolling reproduction and controls the moving picture reproduction control part 171 to reproduce the moving picture data. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information display device, an information display method, an information display program, and a recording medium on which the program is recorded, and in particular, an information display device that displays information while scrolling, an information display method, and an information display program And a computer-readable recording medium on which the program is recorded.

  In recent years, computer technology and network technology have been developed, and various data have been exchanged over the Internet. However, a format that describes documents including still images, moving images, and audio that are handled via the Internet. For example, HTML (Hypertext Markup Language) is often used.

  The HTML document describes text, layout information, and other HTML documents and link information to binary files such as still image data, moving image data, and audio data in a text format. If not elaborate, it can be easily created using a text editor. Also, most documents described in HTML can be viewed through WWW browser software that is pre-installed on the device or available free of charge, and the user can view hyperlinks in the HTML document. A desired document can be displayed and browsed by performing a click operation and a scroll operation for displaying an area that does not fit within the screen.

  On the other hand, as materials for explaining things in a meeting or the like, for example, a document (hereinafter referred to as a presentation document) created by Microsoft (registered trademark) PowerPoint (registered trademark), which is presentation software, is often used. It is used. The presentation document is configured as a collection of one or more slides. When this is displayed as a slide show, each slide is displayed in an enlarged / reduced manner so as to fit on the screen. The user can browse a document expressed by a series of slide groups by performing only an operation of proceeding to the next slide or returning to the previous slide.

Furthermore, for example, in the technique disclosed in Patent Document 1, the central part of the screen is enlarged and displayed, and the peripheral part is reduced and scrolled automatically, thereby suppressing a reduction in visibility and a simple operation. A technique related to a display device capable of browsing data is disclosed.
JP 2000-172403 A (publication date: June 23, 2000)

  However, each of the above conventional techniques has problems.

  In the HTML document, for example, when information does not fit on the screen, it is necessary to perform a scrolling operation when browsing. For example, when moving image data or animation data is pasted on the HTML document, an operation for controlling reproduction of the moving image data or animation data is required in addition to the scroll operation. That is, in the case of the HTML document, there is a problem that the operation is troublesome because a scroll operation and a moving image data reproduction control operation are required.

  On the other hand, for example, when viewing a slide show using a slide show function that displays a plurality of slides by switching the screen, a scroll operation is not necessary, but the presentation document is usually separated discontinuously. Therefore, when viewing the presentation document, it is necessary to store the contents of the previous slide to some extent in the head when proceeding to the next slide.

  For example, in the case of a presentation document, when pasting moving image data, it is pasted on one slide. In this case, since one slide is already within the size of the display screen, even when the slide show function is used, the moving image data is not cut off from the display screen. However, the element data to be pasted is 1 The size of the slide is limited, and the element data cannot be arranged at a free position.

  In the method of Patent Document 1, since the screen is divided into a plurality of parts such as a central part and a peripheral part, data that is preferable to be displayed using the entire screen, such as image data, must be reduced to some extent. There is a problem. Patent Document 1 is a technology that keeps the display of form data in order, but the contents of the form data used here conform to a prescribed format, and the number of character lines depends on the data. And images with different sizes cannot be handled in the same row.

  The present invention has been made in view of such problems, and an object of the present invention is to perform scroll reproduction of content data including moving image data with less operation by the user than in the past and easily. An object is to provide an information display device, an information display method, an information display program, and a recording medium.

  In order to solve the above problems, an information display device according to the present invention scrolls and reproduces content data in which a plurality of element data is arranged in a reproduction area from the reproduction start point of the content data to the reproduction end point. Scroll reproduction means, detection means for detecting the degree of fit of the display area of the element data that changes due to the scroll reproduction with respect to the reproduction area, and control of the scroll reproduction means so that the scroll speed is variable according to the degree of fit And a reproduction control means for performing the above.

  The element data is data included in the content data, and specifically includes text data, still image data, moving image data, audio data, music data, and the like.

  According to the above configuration, the scroll speed can be made variable in accordance with how the element data display area fits into the reproduction area. Specifically, the user can browse all element data included in the content data at a scroll speed set for each element data simply by issuing a browsing instruction for the content data. As a result, the content data can be scroll-reproduced and browsed with fewer operations compared to the conventional case, so that convenience is improved. In addition, since the scrolling speed can be changed according to how the element data display area fits into the reproduction area, for example, in the case of element data that the user wants to browse over time, the scrolling speed is reduced and the time is reduced. In the case of element data to be browsed without being applied, convenience can be improved by increasing the scroll speed.

  It should be noted that detecting that the element data display area fits in the reproduction area by scroll reproduction means that the element data display area is changed when the element data display area displayed in the reproduction area is changed by scroll reproduction. Is displayed in the reproduction area (how much the display area has entered the reproduction area).

  In the information display device according to the present invention, the reproduction control means is configured to stop the scroll reproduction when the detection means detects that the display area of the element data is completely within the reproduction area. A configuration that controls the reproducing means is more preferable.

  According to the above configuration, when content data including element data is reproduced, it is determined (detected) whether or not the element data display area is within the reproduction area. Specifically, for example, the detection unit acquires the display area of the element data, and detects that the acquired display area fits in the reproduction area when the content data is scroll-reproduced. Then, when the element data display area is within the reproduction area, the scroll reproduction is stopped. Specifically, the user can browse all element data included in the content data simply by issuing a browsing command for the content data. As a result, the content data can be scroll-reproduced and browsed with fewer operations compared to the conventional case, so that convenience is improved.

  Note that the content data is not limited to a specified size such as a slide in a presentation document or a form data in Patent Document 1, and may not be able to be displayed at one time depending on the scrolling direction. Is also included.

  The information display device according to the present invention includes a moving image reproducing means for reproducing the moving image data in the reproduction area, wherein the content data includes moving image data, and the reproduction control means displays the moving image data. When the detection means detects that the area is within the reproduction area, the scroll reproduction means is controlled to stop the scroll reproduction, and the moving image reproduction means is controlled to reproduce the moving image data. The structure which performs is more preferable.

  With the above configuration, even if the content data includes video data, the video data playback starts when the video data display area falls within the playback area. Since all the element data included in the content data can be scrolled and browsed, the convenience is improved.

  In the information display device according to the present invention, the playback control means sets the scroll speed for scroll playback until the particular element data display area is scrolled out from the state where the display area of the specific element data is within the playback area, and / or From the time the specific element data display area is scrolled into the playback area until it fits in the playback area, the display speed of the specific element data is made faster than the scrolling speed when the display area is not displayed in the playback area. The structure which controls to is more preferable.

  The scroll-in indicates a point in time when the leading edge of the element data display area appears in the reproduction area by the scroll operation. The scroll-out indicates a time when the element data display area displayed in the reproduction area disappears due to the scroll operation.

  According to the above configuration, the playback control means can start from the time when the element data enters the playback area (scroll-in) until it falls within the playback area and / or from the state where the element data falls within the playback area. Until scrolling out, control is performed so that the display speed of the element data is higher than the scrolling speed when the display area is not displayed in the playback area. As a result, it is possible to shorten the time until the element data completely fits in the reproduction area. Further, it is possible to shorten the time until the element data is completely scrolled out after the browsing of the element data is completed. Thereby, the user can shorten unnecessary time in browsing all content data. The specific element data is, for example, moving image data, still image data, or the like.

  In the information display device according to the present invention, the reproduction control unit changes the scroll speed according to the file format of the element data, or changes the scroll speed for each element data included in the content data. More preferably, the scroll playback means is controlled.

  For example, when scrolling text data, it is necessary to set the scroll speed so that the contents of the text data can be grasped. Also, for example, in the case of still image data, for example, if you want to watch carefully, scroll playback is paused, or conversely, if you only need to grasp, scroll playback is faster than the scroll speed of text data. Sometimes. As described above, by performing the scroll reproduction at the scroll speed corresponding to the type of element data or each element data, the user can browse the content data more reliably, and the convenience can be improved.

  The information display device according to the present invention is configured to include a scaling unit that obtains the size of the display area of the element data and changes the display area of the element data so as to be within the reproduction area. Is more preferable.

  For example, when the element data display area is larger than the reproduction area, the element data display area does not fit in the reproduction area. When element data is reproduced in this state, a part of the element data is displayed. It will be displayed in a state disconnected from the display screen. Accordingly, with the above configuration, the size of the display area of the element data is scaled to fit within the reproduction area, so that all the parts of the element data can be displayed for browsing. That is, the element data can be prevented from being displayed outside the reproduction area. In addition, when the size of the element data display area is much smaller than the size of the reproduction area, for example, the user can reduce the display area by enlarging the element data display area within the reproduction area. Even element data can be suitably viewed.

  In the information display device according to the present invention, when the scaling unit determines that the length of the display area in the orthogonal direction orthogonal to the direction in which the element data is scrolled and reproduced does not fit in the reproduction area, the element data display A configuration in which the length in the orthogonal direction in the area is changed so as to be within the reproduction area is more preferable.

  For example, when the still image data is included in the content data and the still image data is larger than the orthogonal direction in the reproduction area, the display area in the orthogonal direction of the still image data is scaled. By doing so, it becomes possible to browse the entire still image data.

  An information display device according to the present invention displays a scroll bar indicating the entire playback period from the playback start point to the playback end point of the content data, and the scroll playback unit displays the scroll data in the playback area. It is more preferable to have a scroll bar display means for displaying a scroll bar / slider indicating the position of the content data in the entire reproduction period of the content data.

  In other words, the information display device according to the present invention includes a scroll bar indicating the entire playback period from the playback start point to the playback end point of the content data, and the content data that is displayed in the scroll bar. It is more preferable to include a scroll bar display means for displaying a scroll bar / slider indicating the position of the part of the period displayed by the scroll reproduction means in the reproduction area in the entire reproduction period.

  The scroll bar / slider indicates which portion of the content data is displayed on the playback area in the entire period. The scroll bar / slider is preferably operable by the user to display an arbitrary portion of the content data in the reproduction area.

  The scroll bar / slider moves in the scroll bar as the content data is scrolled and reproduced. That is, the scroll bar / slider moves in conjunction with the scroll reproduction of the content data. The scroll bar is displayed on the same screen as the playback area. More specifically, the scroll bar is displayed so as to be adjacent to the reproduction area.

  According to the above configuration, the scroll bar / slider indicating the current display position in the entire period of the content data is displayed. Thereby, the user can easily grasp where the currently viewed portion corresponds to in the entire content data, in other words, how far the browsing has been completed.

  In the information display device according to the present invention, it is more preferable that the entire scroll bar indicates a time required for reproducing content data including a display time of element data.

  By displaying the entire scroll bar in the time required for reproducing the content data, the user can grasp the progress of the reproduction of the content data in real time. The display time indicates, for example, the reproduction time when the element data is moving image data, and indicates the time for displaying the still image data in the reproduction area when the element data is still image data. ing.

  In the information display device according to the present invention, the scroll bar display means displays the scroll bar so that the moving speed of the scroll bar / slider becomes a constant speed during the scroll reproduction of the content data. Is more preferable.

  According to the above configuration, the entire scroll bar is displayed so that the moving speed of the scroll bar / slider is constant. Specifically, the entire period of the scroll bar is a combination of the reproduction time of the moving image data included in the content data and the time required for scroll reproduction at a predetermined speed. As a result, the movement of the scroll bar / slider moves at a constant speed regardless of the scroll playback, so the ratio between the part that has already been played and the remaining playback part is accurately represented. The Rukoto. That is, it is possible to accurately estimate where the current reproduction position corresponds to the content data from the scroll bar and the scroll bar slider.

  In the information display device according to the present invention, it is more preferable that the scroll bar display means displays the scroll bar so that the reproduction period of the element data currently being reproduced can be identified.

  In other words, the information display device according to the present embodiment may be configured such that the scroll bar display unit displays the period required for reproducing the element data displayed in the reproduction area in the scroll bar. .

  Here, the period required for reproduction differs depending on the type of element data. For example, when the element data is moving image data, it is a period required for reproducing the moving image data. For example, the element data is a still image. In the case of data or text data, the period required to scroll and reproduce these data is shown.

  According to said structure, the reproduction | regeneration period of the element data currently reproduced | regenerated of a scroll bar is displayed so that identification is possible. As a result, the user can grasp how much of the entire content data is in the playback period of the element data currently being played back. When the scroll bar / slider is displayed, the user can estimate the reproduction end time of the element data currently being reproduced. Note that the display in such a manner that it can be identified includes, for example, displaying only the portion related to the currently reproduced element data in different colors, or displaying a break on the entire scroll bar.

  An information display device according to the present invention includes an input unit that receives an input from a user, and the reproduction control unit controls the scroll reproduction unit and / or the moving image reproduction unit based on input information received by the input unit. The structure which is thing is more preferable.

  Examples of the information input to the input means include a scroll speed, a direction of scroll reproduction, and a change instruction for a portion of content data to be reproduced. According to the above configuration, scroll playback and moving image playback are controlled based on input information input from the user, so that scroll playback and moving image playback desired by the user can be realized.

  The information display device according to the present invention includes an input unit that receives an input from a user, and the reproduction control unit continues to reproduce the moving image data when the input unit receives a scroll command from the user during reproduction of the moving image data. In addition, a configuration that performs scroll reproduction is more preferable.

  According to the above configuration, the user can check the content of the element data when the user wants to check the content of the element data before and after the video data even during the video data.

  In the information display device according to the present invention, when the content data includes inclusion content data in which element data is arranged, the scroll bar display means takes time required to reproduce each element data included in the inclusion content data. It is more preferable that the time required for reproducing the content data including is displayed as the scroll bar as a whole.

  According to the above configuration, for example, even when the content data includes the inclusion content data, the total of the combined state of the reproduction times of the element data included in the inclusion content data is calculated. . The scroll bar display means displays a scroll bar based on the total value. Thereby, the scroll bar can be displayed based on the reproduction time of the content data.

  In the information display device according to the present invention, the content data is added with information about a start point and an end point arranged at arbitrary positions on the content data. As soon as the start point placed on the content data reaches the playback area during playback, the element data next to the end point placed on the content data (the element next to the end point when viewed from the scroll playback direction) More preferably, the scroll reproduction means is controlled to reproduce the data in the reproduction area.

  According to the above configuration, it is possible to realize transition between non-adjacent element data in addition to scroll reproduction of element data included in content data in order.

  The information about the start point and the end point may be included in the content data in advance, but the information display device according to the present invention adds the information about the start point and the end point to the content data. More preferably, means are provided.

  According to the above configuration, for example, when there is element data included in the content data that cannot be reproduced by the information display device, the start point immediately before the non-reproducible element data and the end point immediately after If the link information (information about the start point and the end point) is generated, it becomes possible to reproduce the content data without omitting the element data that cannot be reproduced. As a result, even if the element data can be played back or cannot be played back according to various conditions such as restrictions on the functions of the information display device and user attributes, the information display device that expresses and plays back the data as a single content data. Since it is possible to determine how to reproduce, this is particularly effective in the case of transmitting and receiving content data as a message to a plurality of partners.

  In the information processing apparatus according to the present invention, the reproduction control unit can switch between a link transition state in which content data displayed in the reproduction area is transitioned from the start point to an end point and a link non-transition state in which no transition is performed. Some configurations are more preferred.

  According to the above configuration, the specific section in the content data is linked by a link so that the specific section can be played back only when the link is in an invalid state, or the infinite repeat playback section is used to play the infinite repeat playback section. It is possible to realize a flexible reproduction form in which the link outside the section is made effective only when exiting the infinite repeated reproduction section.

  In order to solve the above-described problem, the display method according to the present invention scrolls and reproduces content data in which a plurality of element data is arranged in a reproduction area from the reproduction start point of the content data to the reproduction end point. An information display method in an information display device provided with scroll reproduction means, wherein a detection step of detecting a fit of the display area of the element data that changes due to the scroll play with respect to the play area, and a scroll speed according to the fit And a playback control step of controlling the scroll playback means so as to make it variable.

  With the configuration described above, the content data can be browsed while being scroll-reproduced with fewer operations than in the past, so that convenience is improved. In addition, since the scroll speed is made variable according to how the element data display area fits into the reproduction area, for example, when the element data reproduction area enters the display area, the scroll speed is increased. Can shorten the time to browse all of the content data.

  Further, in the display method according to the present invention, the reproduction control step is configured to stop the scroll reproduction when the detecting means detects that the display area of the element data is completely within the reproduction area. A configuration for controlling the scroll reproducing means is more preferable.

  With the above configuration, it is possible to reliably browse all element data included in the content data.

  An information display program according to the present invention is an information display program for an information display device that operates the information display device in order to solve the above-described problem, and is an information display program for causing a computer to function as each of the above-described means. It is.

  With the above configuration, the information display device can be realized by realizing each unit of the information display device with a computer.

  A recording medium according to the present invention is a computer-readable recording medium on which the information display program is recorded.

  With the above configuration, the information display device can be realized on a computer by the control program for the information display device read from the recording medium.

  An information display device according to the present invention includes a scroll playback means for scrolling content data in which a plurality of element data are arranged in a playback area from a playback start point of the content data to a playback end point, and the scroll playback described above. Detecting means for detecting the degree of fit of the display area of the element data that changes depending on the playback area, and playback control means for controlling the scroll playback means so as to vary the scroll speed in accordance with the fit. It is the composition which is.

  In addition, the display method according to the present invention provides information including scroll playback means for scrolling playback of content data in which a plurality of element data is arranged from the playback start point of the content data to the playback end point in the playback area. An information display method in a display device, comprising: a detection step of detecting the degree of fit of the display area of the element data, which changes due to the scroll play, with respect to the play area; and the scroll speed is made variable according to the fit degree. And a playback control step for controlling the scroll playback means.

  Therefore, the user can browse all element data included in the content data simply by issuing a browsing command for the content data. As a result, the content data can be scroll-reproduced and browsed with fewer operations as compared with the conventional case, and the convenience is improved. In addition, since the scrolling speed can be changed according to how the element data display area fits into the reproduction area, for example, in the case of element data that the user wants to browse over time, the scrolling speed is reduced and the time is reduced. In the case of element data that is desired to be browsed without being applied, it is possible to improve convenience by increasing the scroll speed.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. First, definitions of terms in the embodiment of the present invention will be summarized.

  In the present embodiment, “element data” is any of text data, still image data, moving image data, audio data, and music data, and exists in the form of an electronic file or streaming data.

  In the present embodiment, “content data” is an aggregate of the element data, and indicates data in which a plurality of element data is arranged. Specific content data includes a group of information including a method for displaying information and a method for reproducing a plurality of element data arranged along one coordinate axis (time series) along the coordinate axis. It may be defined as data in the text format or binary format, or may simply be a directory for storing files. When the content data is a directory for storing element data, the element data included in the directory only needs to store the arrangement position of the content data with respect to the coordinate axis, and in the order of file names. The order may be determined based on file attributes such as the order of creation time.

  In the present embodiment, the “scroll bar” indicates a progress status when content data is reproduced, and the position of the scroll bar / slider indicates the current position within the total content data reproduction time. Is. The scroll bar is displayed adjacent to the content data display area. Note that the total reproduction time is a time obtained by combining the time required for scrolling the entire length of the content data at a preset speed and the time for stopping scrolling for reproduction of moving image data. . In the above case, for example, if music data is included in the content data and the scrolling of the content data is stopped when the music file is played back, the playback time of the music file is included in the total playback time. It will be.

  In this embodiment, “playback” refers to a process of converting each element data from a computer-readable digital data form to a form that can be viewed and listened to by humans. It is to display or reproduce in order along the time series. In other words, the reproduction means that all element data included in the content data is displayed or reproduced on the display screen. Needless to say, when content data includes music files as element data, audio data and music data are output from an output device such as a speaker.

[First embodiment]
FIG. 2 is a block diagram illustrating a specific example of the hardware configuration of the information display apparatus 100 according to the first embodiment. As shown in FIG. 2, the information display device 100 according to the present embodiment includes a communication unit 11, a control unit 12, a storage unit 13, and an input / output unit 14.

  The control unit 12 controls the entire information display device 100. The communication unit 11 is for communicating with other devices. The communication unit 11 and the control unit 12 include a CPU (Central Processing Unit) and the like.

  The storage unit 13 stores a program executed by the control unit 12, intermediate data of the program, data received from another computer, and the like.

  The input / output unit 14 is a user interface. The storage unit 13 and the input / output unit 14 include a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.

  The input / output unit 14 further includes an operation unit 141 for inputting data and commands to the control unit 12 such as buttons, dials, and levers, and a display unit 142 such as an LCD (Liquid Crystal Display) for displaying information to the user. And an audio output unit 143 such as a speaker for outputting audio.

  FIG. 3 is a block diagram illustrating a configuration of the information display device 100 according to a function for reading content data to be played back and a function for playing back the content data according to predetermined settings or user operations.

  As shown in FIG. 3, the information display apparatus 100 according to the present embodiment includes an operation receiving unit 101, a moving speed instruction unit 102, an output part instruction unit 103, an output data instruction unit 104, an output control unit 105, and output data reading. Unit 106, output setting information storage unit 107, output unit 108, data temporary storage unit 109, data storage unit 110, and communication unit 11. The operation unit 141 includes an operation reception unit 101, a moving speed instruction unit 102, an output part instruction unit 103, and an output data instruction unit 104. The control unit 12 includes an output control unit 105 and an output data reading unit 106. The storage unit 13 includes an output setting information storage unit 107, a temporary data storage unit 109, and a data storage unit 110. The data temporary storage unit 109 and the data storage unit 110 constitute a data holding unit 136. The output unit 108 includes a display unit 142 and an audio output unit 143. Then, the function of reading the content data and the function of reproducing the content data, the control unit 12 reads the program stored in the storage unit 13 and executes the program to control each unit of the hardware configuration shown in FIG. It is realized by doing.

  The operation reception unit 101 receives an operation from a user. The main operations from the user include, for example, specification of content data to be displayed, instruction to change the portion of the displayed content data to be displayed on the screen, and instruction to change the scroll speed when scrolling the content data. Etc.

  If the operation reception unit 101 has received a scroll speed change instruction, in other words, the movement speed instruction unit 102 changes the movement speed to the output control unit 105 upon receiving a scroll speed change request from the user. Instruct.

  If the operation accepting unit 101 accepts an instruction to change the display part in the content data, in other words, the output part instructing unit 103 receives the request to change the display part in the content data from the user. On the other hand, it instructs to change the output part.

  The output data instruction unit 104 designates content data to be reproduced. In addition, if the operation receiving unit 101 receives an instruction to change content data, in other words, the output data instruction unit 104 receives a reproduction request (change request) for content data to be reproduced from the user, the output data reading unit 106. Is instructed to read new content data.

  The output control unit 105 performs control related to reproduction of content data stored in the data holding unit 136 via the output data reading unit 106. Specifically, the output control unit 105 refers to the setting information stored in the output setting information storage unit 107, receives data from the moving speed instruction unit 102 and the output part instruction unit 103, and stores data. The content data held in the unit 136 is output to the output unit 108. Details of the output control unit 105 will be described later.

  When the output data reading unit 106 receives an instruction to read content data to be output from the output data instruction unit 104 or the output control unit 105, the output data reading unit 106 refers to the data storage unit 110 and the data temporary storage unit 109 to read the content data to be read. If the output data reading unit 106 determines that some or all of the content data does not exist in the data storage unit 110 and the data temporary storage unit 109, the Content data is acquired via the unit 11. Then, the acquired content data is stored in the data storage unit 110 and / or the data temporary storage unit 109.

  The output setting information storage unit 107 stores setting information related to the output of content data, specifically, screen scroll speed, display resolution, number of colors, screen update frequency, volume, and other information.

  The output unit 108 outputs (reproduces) content data based on an instruction from the output control unit 105. The output unit 108 includes a display unit 142 and an audio output unit 143.

  The data temporary storage unit 109 and the data storage unit 110 serving as the data holding unit 136 are storage areas (storage devices) that hold part or all of the content data to be output. Normally, the data temporary storage unit 109 uses a device such as a memory capable of high-speed reading and writing, and the content data to be output is likely to be output immediately after the part being output in the output unit 108 and immediately after Keep the part. On the other hand, the data storage unit 110 is a device such as a hard disk capable of storing a large amount of data, and holds content data to be output, including a part that cannot be held in the data temporary storage unit 109. Furthermore, content data that is expected to be output in the near future may be stored in advance, or content data output in the past may be stored as a cache.

  The communication unit 11 acquires data (content data) from the external network 112 in response to an instruction from the output data reading unit 106.

  Here, the output unit 105 will be described. FIG. 1 is a block diagram for explaining the functional configuration of the output control unit 105 in more detail. As shown in FIG. 1, the output control unit 105 includes a reproduction control data structure management unit 152, a content data analysis unit 154, a data acquisition unit 130, an element data scaling determination unit 131, a scroll bar control unit 151, A scroll operation control unit 133, an output element data determination unit 153, a scaling processing unit 132, and a content data reproduction control unit 155.

  The content data reproduction control unit 155 includes a moving image reproduction control unit 171, a still image reproduction control unit 172, an audio reproduction control unit 173, and a text reproduction control unit 174.

  The output unit 108 includes a display unit 142 and an audio output unit 143.

  Based on an instruction from the output data instruction unit 104 of the operation unit (input unit) 141, the data acquisition unit 130 stores content data stored in the data holding unit 136 or element data associated with the content data. To get. Further, the data acquisition unit 130 acquires element data constituting the content data stored in the data holding unit 136 based on an instruction from the output element data determination unit 153 described later.

  The content data analysis unit 154 analyzes the content data acquired by the data acquisition unit 130 based on an instruction from the output data instruction unit 104. Then, the content data analysis unit 154 transmits the analysis result to the reproduction control data structure management unit 152, and the reproduction control data structure management unit 152 manages the analysis result.

  Specifically, the content data includes a script as shown in FIG. 30 and one or more element data referenced from the script (in the example of FIG. 30, text1.txt, video1.mpg, text2. txt, img1.jpg, text3.txt). In the script, a description for designating one or more area information for displaying element data, a description for designating element data, and each element data in which of the designated areas, It includes a description of playback schedule information that specifies which time zone to display and display.

  The analysis of the content data means reading a script as shown in FIG. 30 and expanding it into a data structure as shown in FIG. 29 based on the data structure configuration rule as shown in FIG. . The reproduction control data structure management unit 152 manages reading and writing of the expanded data structure.

  When analyzing the content data, the element data scaling determining unit 131 determines whether or not the display area of the element data is within the reproduction area for each element data included in the content data. When it is determined that the display area of the element data does not fit in the reproduction area, the coordinate value of the display area of the data after the scaling process is calculated, and the information is shown in FIG. Append to data like the data structure shown.

  The reproduction control data structure management unit 152 further receives a scroll speed change instruction from the movement speed instruction unit 102 or when the output setting information storage unit 107 defines the scroll speed of the content data in advance. In this case, the reproduction schedule information of each element data, specifically, the attribute values of BeginTime and EndTime in FIG. 29 are changed.

The scroll operation control unit 133 performs control related to scroll reproduction such as start of scroll, change of scroll speed, and stop in reproduction of content data.
Specifically, the content data is scrolled based on the scroll speed included in the script, and the scroll is stopped based on a scroll stop command transmitted from the scroll control unit 151 or the output element data determination unit 153. And scrolling is started based on a scroll start command.

  When the scroll bar control unit 151 receives the notification of the output coordinate range from the scroll operation control unit 133, the scroll bar control unit 151 calculates the position of the scroll bar / slider accordingly and redraws the scroll bar to the content data playback control unit 155. Instruct.

  In addition, when the scroll bar / slider is moved by a user operation, the scroll bar control unit 151 calculates the output coordinate range of the content data after the movement, and notifies the scroll operation control unit 133 of it.

  When the output element data determination unit 153 receives the notification of the output coordinate range from the scroll operation control unit 133, the output element data determination unit 153 refers to the reproduction control data structure via the reproduction control data structure management unit, and selects which element data included in the content data It is calculated which part of the element data should be displayed in which part of the reproduction area. As a result, the element data to be reproduced and displayed is acquired via the data acquisition unit 130 (more specifically, the address where the element data is stored is acquired in the data holding unit), and the content data reproduction control unit 155 is acquired. Is instructed to play. At this time, if the scaling process of the element data is necessary, the scaling process unit 132 performs the scaling process and then issues a playback instruction to the content data playback control unit 155.

  The content data reproduction control unit 155 controls the reproduction of content data based on the content data transmitted from the output element data determination unit 153.

  The moving image reproduction control unit 171 performs reproduction control of moving image data. The still image reproduction control unit 172 performs reproduction control of still image data. The audio reproduction control unit 173 performs audio data reproduction control. The text playback control unit 174 controls playback of text data.

  When receiving the scaling command from the output element data determination unit 153, the scaling processing unit 132 scales the display area of the target element data. The display area of the element data is scaled so as to be within the reproduction area. The scaling factor for scaling may be varied depending on, for example, the resolution of the moving image data, or may be scaled at a constant scaling factor.

  The element data reading instruction process described above is performed in accordance with the content data being played while scrolling. That is, it is not necessary to read all the element data included in the content data at a time, and after the start of reproduction of the content data, each appearing element data is read and the data temporary storage unit 109 is read. And delete from the data temporary storage unit 109 from the unnecessary one. Therefore, even when a large amount of large-capacity element data such as moving image data is included in one content data, a smooth reproduction process can be realized even if the storage capacity of the data temporary storage unit 109 is not so large.

  It should be noted that the scroll operation control unit 133 may instruct the reproduction of the moving image data when the moving image data falls within the reproduction area. Further, during the scroll reproduction, the scroll operation control unit 133 may output a specific still image from the output element data determination unit 153. When a signal indicating that the image data is within the reproduction area is received, an instruction to stop scroll reproduction may be issued, and an instruction to start scroll reproduction may be issued after a predetermined time has elapsed.

  FIG. 4 is a diagram for explaining a display screen area of the information display device of the present invention. Referring to FIG. 4, display screen area 300 is a scroll for displaying data reproduction area (reproduction area) 310, scroll bar 320 and scroll bar slider 330 for displaying text data, still image data, moving image data, and the like. And a bar playback area. Content data to be displayed is displayed in its entirety in the data reproduction area 310 while scrolling in the vertical direction, horizontal direction, or diagonal direction. The scroll bar 320 and the scroll bar / slider 330 indicate which part of the entire content data is displayed in the data reproduction area 310. More specifically, the scroll bar / slider 330 reproduces the content data. When the head of the content data is reproduced, it is arranged at the top of the scroll bar 320, and moves downward as the reproduction progresses. When reproducing the end of the content data, the scroll bar Reach the bottom of 320. The “head of content data” indicates an end portion at a playback time of 0 when the content data is played back.

  The content data is reproduced by scrolling in the vertical direction. The scrolling speed and direction are the speed and direction determined in advance by the information display device or the speed and direction specified in the content data to be reproduced. Thus, it may be automatically performed, or the user may instruct the scroll speed and direction using a device such as a remote controller. When the user can use a pointing device such as a mouse, the playback point (playback area) may be moved by directly moving the position of the scroll bar / slider 330 to an arbitrary position of the scroll bar 320.

  Note that the “reproduction area” does not necessarily indicate the entire display screen of the information display device, for example. For example, a part of the display screen may be the reproduction area. That is, the reproduction area indicates an area for reproducing content data on the display screen of the information display device.

  Here, the information display method of content data according to the present embodiment will be specifically described. In the content data information display method according to the present embodiment, the content data in which a plurality of element data is arranged along one coordinate axis is scrolled from the reproduction start point of the content data toward the reproduction end point. A scroll playback process for playing back content data in a playback area, a video playback process for playing back the video data in the playback area when the element data is video data, and a display area for the video data Based on the detection process for detecting whether or not the video data is within the playback area and the detection result of the detection process, if the video data display area is determined to be within the playback area, the scrolling is stopped and the video data is played back. The information display method includes a reproduction control process for performing the above. This will be described below.

  FIG. 5 is a flowchart showing the flow of processing in the content data information display method according to the present embodiment. The information display method according to the present embodiment will be described with reference to this flowchart.

  When the reproduction area of the display screen is changed by the user, the control unit 12 stores the reproduction area in the output setting information storage unit 107 of the storage unit 13 (S10). The reproduction area is acquired and stored every time the reproduction area is changed.

  First, when content data to be played back and displayed is specified by the user via the output data instruction unit of the operation unit 141, the output data reading unit 106 instructs acquisition of content data from the external network via the communication unit 11. . The acquired content data is stored in the data holding unit 136.

  Subsequently, the output control unit 105 prepares information necessary for reproduction control of the acquired content data. First, the data acquisition unit 130 reads the acquired content data from the data holding unit 136 and passes it to the content data analysis unit 154. The content data analysis unit 154 analyzes the acquired content data and creates a data structure as shown in FIG. The created data structure is managed by the reproduction control data structure management unit 152.

  Thereafter, when the user gives an instruction to reproduce the content data through the moving speed instruction unit of the operation unit 141 (S11), the content data is scrolled and reproduced according to the scroll speed information stored in the output setting information storage unit 107. Is started (S12).

  The scroll reproduction control of the content data is performed by the scroll operation control unit 133. The scroll operation control unit 133 instructs the content data reproduction control unit 155 to draw the scroll bar and the scroll bar / slider via the scroll bar control unit 151. On the other hand, the elapsed time after the start of reproduction is counted one by one and notified to the output element data determination unit 153. The output element data determination unit 153 that has received the notification of the reproduction time refers to the notified current time and the reproduction control data structure to determine element data to be reproduced and displayed. The determined element data is acquired via the data acquisition unit 130.

  Next, the output element data determination unit 153 determines whether or not the display area of the moving image data included in the content data has entered the reproduction area by scroll reproduction of the content data (S13). Specifically, referring to the current time notified from the scroll operation control unit 133 and the playback control data structure, information indicating that moving image data is displayed in the playback area after a predetermined time from the start of scroll playback. Can be determined whether or not the moving image data has entered the reproduction area.

  If it is determined in step S13 that the moving image data display area has entered the reproduction area, the output element data determination unit 153 determines whether the moving image data display area that has entered the reproduction area fits in the reproduction area. (S14). For example, the output element data determination unit 153 can determine this based on the determination result of the element data scaling determination unit 131.

  If it is determined in step S14 that the moving image data display area does not fit in the reproduction area, the output element data determination unit 153 issues a scaling command for the moving image data display area to the scaling processing unit 132. The scaling processing unit 132 performs scaling processing so that the moving image data display area fits in the reproduction area (S15). Then, the process proceeds to step S16.

  Next, when it is determined that the display area of the moving image data fits in the playback area, or when scaling processing is performed so that the display area fits in the playback area, the output element data determination unit 153 then performs scroll playback. Thus, it is determined whether or not the moving image data display area is within the reproduction area (S16). Specifically, at the current time notified from the scroll operation control unit 133, the range of coordinate values output to the reproduction area of the content data and the coordinates of the display area of the moving image data obtained by referring to the reproduction control data structure Judgment is made by comparing with a range of values.

  When it is determined that the moving image data display area is within the reproduction area by scroll reproduction, the output element data determination unit 153 instructs the scroll operation control unit 133 to stop scroll reproduction. The scroll operation control unit 133 that has received the scroll stop command stops scroll reproduction (S17).

  Then, the scroll operation control unit 133 stops the scroll reproduction, and then transmits a moving image reproduction command to the content data reproduction control unit 155. The content data playback control unit 155 that has received the video playback command plays back the video data displayed in the playback area (S18).

  Next, the scroll operation control unit 133 determines whether or not the reproduction of the moving image data displayed in the reproduction area has ended (S19). Specifically, when the reproduction of the moving image data displayed in the reproduction area is completed, the moving image reproduction control unit 171 transmits a signal indicating that the reproduction of the moving image data has been completed to the scroll operation control unit. In other words, the scroll operation control unit 133 determines whether or not the video data reproduction control unit 171 has received a signal indicating that the video data has been reproduced, thereby reproducing the video data displayed in the reproduction area. It is determined whether or not the process has ended.

  When receiving a signal indicating that the reproduction of the moving image data displayed in the reproduction area is finished from the moving image reproduction control unit 171, the scroll operation control unit 133 again issues a scroll start command to the scroll bar control unit 151 and the content data reproduction. This is transmitted to the control unit 155, whereby the scroll reproduction of the content data is resumed (S20).

  Whether or not the reproduction of the content data has ended is determined by the output element data determination unit 153, and the scroll operation control unit 133 is instructed to stop scrolling (S21). Specifically, the elapsed time from the start of playback is compared with the politics of the content data that can be acquired from the playback control data structure management unit, and it is determined whether or not the playback of the content data has ended. If it is determined that the reproduction of the content data has not been completed yet, the process returns to step S13. If it is determined that the content data has been reproduced, the process is terminated.

  For example, when it is determined that the reproduction of the content data has ended, the reproduction of the content data may be started again. Also, in the above description, an example is described in which it is detected whether or not the moving image data display area has fallen within the reproduction area by scroll reproduction, and when it is determined that the moving image data has fallen, control is performed to reproduce the moving image data. ing. However, the present invention is not limited to the above. For example, in the case of still image data (may be moving image data), the still image data has entered (1) the playback area (scrolled in). When detected, scroll playback is performed at a scroll speed faster than the normal scroll playback speed. (2) When it is detected that the still image data is completely within the playback area, the scroll playback is stopped. ) When scroll playback is performed at a scroll speed faster than the normal scroll speed, and the still image data is detected to be out of the playback area (scroll out), control is performed to perform scroll playback at the normal scroll speed. Also good. In addition, the control of said (1)-(3) may perform only any one (or two), for example. Also, in the above (1) and / or (3), the scrolling speed is controlled to be variable according to how the element data (moving image data, still image data) reproduction area fits in the display area. Also good.

  FIG. 6 is a diagram schematically showing a change in display form when the content data 350 including text data, still image data, and moving image data is reproduced in the information display apparatus of the present invention. Originally, the display screen area 300 is stationary, and the content data 350 is reproduced while scrolling in one direction up or down. However, for convenience of explanation, the content data 350 is stationary and is displayed on the display screen. The region 300 is described as moving upward or downward.

  The content data 350 includes text data, still image data, and moving image data 361-362. The moving image data 361 and 362 are a series of data, and indicate that the state of 362 is obtained when the reproduction proceeds for a predetermined time from the state of 361. In the display screen area 300, the video displayed on the display screen area 300 transitions from the screen 301 to the screen 304 through the screen 302 and the screen 303 as the playback progresses. In conjunction with the transition of the screen, the scroll bar / slider 330 moves from top to bottom. Note that the display screen area 300 is stationary at the position of the screen 302 during a time period in which the moving image data 361 to 362 are reproduced. That is, the same positions of the screens 302 and 303 and the content data are displayed. That is, when moving image data is displayed, scrolling of content data is stopped. On the other hand, the scroll bar / slider 330 continues to move even during reproduction of moving image data.

  As described above, when reproducing moving image data, scroll reproduction of content data is temporarily stopped. It is desirable to display the display of the scroll bar / slider 330 in the scroll bar 320 in a state including the reproduction time of the moving image data so that the reproduction progress of the element data included in the content data can be easily grasped. . This will be described below.

  FIG. 22 is a diagram illustrating an example of a technique for visualizing the progress of reproduction of element data. Referring to FIG. 22, in a section in which moving image data 361 to 362 are reproduced, the range in which the scroll bar / slider moves in this section is displayed in the scroll bar 320 in different colors such as 340. Thus, the current playback point in the entire content data can be grasped by the position of the scroll bar / slider 330 in the scroll bar 320, and at the same time, by comparing the position of the playback section 340 and the scroll bar / slider 330, It becomes possible to grasp the current playback point for the element data.

  When the content data includes a plurality of element data to be reproduced in a state where the scrolling of the reproduction area is stopped, as in the above-described moving image data, as shown in FIG. 22 for all reproduction sections of the plurality of moving image data. The reproduction section 340 of the moving image data may be displayed in different colors, or only the moving image data may be displayed in different colors when the reproduction point enters each reproduction section of the plurality of moving image data. When performing color-coded display for a plurality of sections, particularly when any of these sections are adjacent, it is preferable that the sections can be distinguished by using different colors so that they can be distinguished.

  In other words, in the present embodiment, when scroll bar 320 and scroll bar / slider 330 are displayed to display the progress of reproduction of content data, scrolling related to scroll reproduction of the content data at a predetermined speed is performed. It is preferable to display the scroll bar 320 so as to be a time obtained by adding the time and the moving image reproduction time of the moving image data included in the content data. And when reproducing the moving image data included in the content data, it is more preferable to display the time required for reproducing the moving image data as a ratio in the maximum value of the scroll bar.

  FIG. 7 is a flowchart showing a flow of processing when content data is reproduced in accordance with an instruction from the user input during reproduction of the content data in the information display apparatus of the present invention. With reference to FIG. 7, a process of changing the reproduction of content data based on an instruction from the user input during the reproduction of content data will be described.

  First, the information display device determines whether or not the content data is currently being reproduced (S401). If it is not executed (NO in S401), the process proceeds to S402. The content reproduction process is a process related to S12 to S20. When the content reproduction process ends, the process proceeds to S405. Here, the state in which the content data is being reproduced refers to a period from when the content data is loaded until it is unloaded after the reproduction is completed. Therefore, if the content data is loaded, the state where the reproduction is paused is also included in the state where the content data is being reproduced.

  Then, the operation receiving unit 101 monitors whether or not there is an input from the user in S402, and when receiving an input to reproduce the content data from the user, the output data reading unit 106 via the output data instruction unit 104 Reading of content data is started (S403). Subsequently, the reproduction of the content actor read based on the control of the output control unit 105 is started (S404). Then, the process returns to S10.

  If it is determined that the content data is not being reproduced, the operation accepting unit 101 ignores an operation (command) other than the content data reproduction instruction from the user (other than S402). If the operation accepting unit 101 is reproducing content data (NO in S405), the operation accepting unit 101 receives the scrolling speed instruction input operation of the content data from the user, and the scrolling speed is sent to the output control unit 105 via the moving speed instructing unit 102. Send the change instruction. Then, the output control unit 105 changes the scroll speed setting based on the scroll speed instruction input by the user, and proceeds to S408. If the operation receiving unit 101 receives the designation of the output part (display part) of the content data from the user, or if no operation is received, the process proceeds to S408. In step S408, the scroll operation control unit 133 controls the scroll operation in accordance with the designation of the output part input from the user. Then, the content data reproduction control unit 155 reads individual element data constituting the content data via the output element data determination unit 153 based on an instruction from the scroll operation control unit 133 (S409). Further, based on the instruction from the scroll operation control unit 133, the display unit 142 moves and redraws the scroll bar / slider through the scroll bar control unit 151 (S410), and then through the content data reproduction control unit 155. The display unit 142 performs element data drawing processing (S411), and the audio output unit 143 performs audio reproduction processing (S412). Then, the process returns to S12.

  Furthermore, in step S405, if the end of the content data has been reached (YES in S405), the reproduction process ends. If not (NO in S405), the process returns to S406, and the above process is repeated.

  Note that the end process for ending the reproduction of the content data may be automatically performed when the end of the content data is reached in the playback area as described above, or is ended when the end of the content data is reached. Instead, the termination process may be performed when the information display device 100 is turned off or an explicit termination process is performed instead.

  FIG. 8 is a diagram for explaining the definition of the coordinate system that defines the positional relationship among the content data 350, the display screen area 300, the scroll bar 320, and the scroll bar / slider 330.

  Here, as shown in FIG. 8, a coordinate plane defined by an x-axis extending rightward and a y-axis extending downward from the upper left point of the content data 350 is assumed.

  The total length of the content data 350 in the vertical direction (y-axis direction) is H, the total length of the display screen area 300 in the vertical direction is h, and the time required for playback of the entire content data 350 is T. The y coordinate of the upper left point of the display screen area 300 when time t has elapsed from the start time is represented by a function y = y (t). That is, y (t) indicates the position of the content data displayed in the display screen area 300 after the time t has elapsed. Here, the time required to reproduce the entire content data 350 is the time required to reproduce the content data 350 from the beginning to the end. The time required to reproduce the entire content data 350 includes a time required to scroll the content data 350 in the y-axis direction at a predetermined scroll speed, and a time required to reproduce the moving image data included in the content data 350. Is equal to the combined time.

  On the other hand, the length of the entire scroll bar 320 in the vertical direction is S, and the y-coordinate of the top point of the scroll bar 320 and the scroll bar / slider 330 when the time t elapses from the time when the reproduction of the content data 350 is started. The difference between the y-coordinates of the uppermost point is expressed by the function s = s (t) of t.

  The content data 350 includes moving image data 360. The reproduction start time of the moving image data 360 is t1, and the reproduction end time is t2.

  The reproduction control data structure management unit 152 performs processing for determining y (t) and s (t) in FIG.

  FIG. 9 is a graph showing an example of changes in 0 ≦ t ≦ T of s (t), y (t) and dy (t) / dt obtained by time differentiation of s (t) and y (t).

  When the content data is scroll-reproduced at a predetermined speed, the difference s (t) is expressed by the following equation (1) as shown in FIG.

(See FIG. 9A). That is, the scroll bar slider 330 moves from the top to the bottom of the scroll bar 320 at a constant speed. Y (t) is expressed by the following equations (2) to (4).

(See FIG. 9B). Then, dy (t) / dt obtained by time-differentiating y (t) represents the moving speed of the display screen area 300, which is expressed by the equations (5) and (6).

(See FIG. 9C). That is, the playback control data structure management unit 152 stops the scrolling playback of the content data from the start to the end of playback of the moving image data 360 and controls to move from top to bottom at a constant speed in other sections. Create a data structure.

  Thus, as described above, when the content 350 that cannot be displayed at once in the display screen area 300 is scroll-reproduced and the movie data is reproduced, the scroll reproduction is paused and the movie data is reproduced. When the reproduction of the moving image data is completed, the text and still image data naturally enter the field of view and can be easily viewed by automatically performing the scroll reproduction so that the scroll reproduction is started again. In addition, since the scroll reproduction is stopped when the moving image data is reproduced, the user can view the entire moving image data just by watching.

  In the above description, when the moving image data 360 is reproduced, the scroll reproduction is stopped and the reproduction of the moving image data is started after the scroll reproduction is performed until the display area of the moving image data fits in the reproduction area. Further, even after the reproduction of the moving image data is finished, the scroll reproduction is resumed at the same speed. As for the scrolling speed before and after the reproduction of the moving image data, the scrolling speed may be constant as described above. For example, as shown in the graph of FIG. You may make it carry out at high speed rather than the scroll speed in scroll reproduction. By doing so, it is possible to view still image data and text data arranged below the moving image data immediately after the reproduction of the moving image data is finished. Further, for example, as in the graph shown in FIG. 11, the scroll reproduction may be performed so that the scroll speed in the scroll reproduction smoothly changes with acceleration.

  10 and 11, the time t0 is a point in time when the leading edge of the moving image data to be reproduced appears in the display screen area 300, and the time t1 is the moving image data display area in the display screen area 300. It shows the time when it was settled. The time t2 is the time when the reproduction of the moving image data is finished and the scroll reproduction is started, and the time t3 is the time when the moving image data disappears from the display screen area 300.

  As described above, the scroll speed when text data or small still image data is mainly displayed may be different from the scroll speed before and after the scroll reproduction is stopped when reproducing the moving image data.

  Further, whether or not to stop the scroll playback when reproducing the moving image data may be determined by the setting (output setting information) of the information display device 100, and the content data description format is scrolled for each element data. An identifier for determining whether or not to stop may be prepared, and the processing may be performed in accordance with this description.

  In addition, as a method for setting whether or not to stop the scroll reproduction by the output setting information, it is determined by the file format of the element data (stop if it is a moving image, otherwise it does not stop, etc.), and required for reproducing the element data. For example, it may be determined according to time (for example, when it is longer than the predetermined time, it is stopped and played back), or depending on the size of the area required for displaying the element data.

  In the above description, an example in which scroll playback is stopped when moving image data is played back is described. For example, when still image data fits on a display screen, scroll playback is stopped for a predetermined time. May be.

  FIG. 12 is an example of content data configured by arranging still image data groups. Each still image data is adjusted to a size that fits in the display screen area 300. When scrolling the content data, the scroll playback is stopped when each still image data falls within the playback area, and the scroll playback is started again after a predetermined time. That is, the still image data and other still image data are started. When scroll playback is performed between the two, the time changes of y (t) and dy (t) / dt are as shown in the graph of FIG.

  Also, for example, if there is text data at the beginning of the content data, there is no problem if the scroll playback is started for the first time by reading the scroll playback start instruction from the user after the content data is read, but the scroll playback starts immediately after the reading. If it is set to do so, the first few lines of text data immediately go out of the playback area, which may be inconvenient for the user. Therefore, when the scroll reproduction is started immediately after reading the content data, it is preferable that the scroll reproduction is started after a predetermined time of stationary.

  Next, in addition to the automatic execution function described above, a case where the user controls content data reproduction will be described.

  FIG. 14 is a diagram illustrating a schematic configuration of the information display device 100 when the information display device 100 is a television. A content data reproduction instruction from a user is made via a remote controller (hereinafter referred to as a remote controller). That is, the operation unit 141 is a remote controller.

  As shown in FIG. 14, the television that is the information display device 100 includes a display unit (including each component shown in FIG. 4) 142 and a speaker 1310 that is an audio output unit 182. The reproduction of the content data is automatically performed if only the reproduction instruction is issued as described above, and is also performed by the user operating the remote controller 1320. The remote control 1320 includes a stop button 1321, a play button 1322, a fast forward button 1323, and a rewind button 1324. The remote controller 1320 may include other input means, or the above-described buttons 1321 to 1324 may be mounted on a normal TV remote controller in addition to buttons for operating the TV. May be.

  How to move when each of the buttons 1321 to 1324 is pressed will be described with reference to FIG.

  FIG. 18A shows the time change of y (t) when the content data of FIG. 8 is reproduced, and the vertical axis and the horizontal axis are the same as those in FIG. 10B. However, in FIG. 18A, they are rewritten as y (t0) = y0, y (t1) = y1, and y (t3) = y3, respectively. When the content data is first read, the content data is at the position (t, y) = (0, 0) on the graph, and when the user presses the playback button 1322, the playback state is entered, and the user moves along the locus shown in the graph. . When the user presses the stop button 1321 in the playback state, the playback stops at the position (t, y) at that time. When the fast forward button 1323 is pressed, the scroll speed in the playback state and the playback speed of the moving image data included in the content data increase. When the fast-forward button 1323 is pressed at the time of (t, y) = (0, 0), it moves along a locus as shown in FIG. That is, the slope of the graph becomes steep in the sections of 0 <y <y0 and y3 <y <Hh. The section where y = y1 is a moving picture data reproduction section, where the moving picture data is fast-forwarded and reproduced. Therefore, the time of the section where y = y1 is shortened (t2'-t1 '<t2-t1). When the rewind button 1324 is pressed, the locus of FIG. 18B is changed so as to follow from the right to the left.

  The element data skip function may be realized using the fast forward button 1323 and the rewind button 1324. The skip function is a function for jumping to the end or the beginning of the playback time of element data currently being played back. In the moving picture data playback section of y = y1 in FIG. 18A, t = t2 or t = Jump to the state of t1.

  When the fast forward, rewind function, and skip function are both realized, different buttons may be prepared, or the buttons 1323 and 1324 may be used differently. For example, if the button 1323 is kept pressed longer than a predetermined time, the fast forward function is executed, and if the button 1323 is released before the predetermined time elapses, the skip function is executed.

  Further, instead of fast-forwarding and rewinding the moving image data and animation data, a part of the still image or moving image representing the data may be reproduced.

  FIG. 15 shows another example of the remote controller in which the user issues a content data reproduction instruction. The content data reproduction instruction is controlled by turning a knob 1401, as shown in FIG. That is, the playback speed and playback direction change depending on how the knob is turned. Specifically, by turning the knob 1401, if the scale 1402 imprinted on the knob 1401 is at the STOP position, playback is stopped, and if it is on the right side, forward playback is performed, and the scale 1402 is set to the PLAY position. If there is, playback at a predetermined scroll speed and playback speed of moving image data, fast-forward playback if it is on the right side of PLAY, slow playback if it is on the right side of STOP and left side of PLAY. That is, the scroll speed and the playback speed increase as the knob is turned to the right. The knob 1401 can be turned until the scale 1402 reaches the FF position, and is reproduced at the highest speed when the scale 1402 is at the FF position.

  On the other hand, when the scale 1402 is on the left side of the STOP, the playback is in the reverse direction, and the speed increases as the counterclockwise is turned.

  When the scale 1402 is at the STOP position and the PLAY position, it is desirable that the knob 1401 has a mechanism that stops at this position even when the hand is released.

  Further, when the scale 1402 is on the right side of the PLAY, when the hand is released from the knob 1401, the mechanism may return to the PLAY position and stop.

  Further, when the scale 1402 is on the left side of the STOP, when the hand is released from the knob 1401, the mechanism may return to the STOP position and stop.

  FIG. 16 is a diagram illustrating a schematic configuration of the information display device 100 when the information display device 100 is a mobile phone. The operation unit 141 is a button attached to the mobile phone.

  As shown in FIG. 16, the mobile phone that is the information display device 100 includes a display unit (including each component shown in FIG. 4) 142, operation buttons, and a speaker (not shown) that is the audio output unit 182. And. The reproduction of the content data is automatically performed as described above, and is also performed when the user operates the stop / play button 1501, the fast forward button 1502, and the rewind button 1503. The stop / play button 1502 functions as a playback start button when content data playback is paused, and as a pause button when content data is being played back. Whether or not the reproduction starts or stops when the button 1502 is pressed can be determined by displaying a character string such as “reproduction” or “stop” or an icon image at the position 1504 of the guide line. By doing in this way, a user's convenience can be improved more.

  The change in the content data reproduction state caused by pressing the buttons 1501 to 1503 is the same as that when the information display device 100 is a television, and thus detailed description thereof is omitted.

  FIG. 23 is a diagram illustrating a schematic configuration of the information display device 100 when the information display device 100 is a digital camera. With this digital camera, it is possible to display all image data (still image data and moving image data) on the liquid crystal screen by a single button operation on the still image data and moving image data stored in the storage medium.

  As shown in FIG. 23, the digital camera that is the information display device 100 includes a display unit (including each component shown in FIG. 4) 142, a data backward button 2201, and a data forward button 2202. The content data reproduced here is a set of still image data or moving image data stored in a storage medium (not shown), and may be all data stored in the storage medium, It may be extracted only when the shooting date and time and other attributes satisfy certain conditions.

  In this case, execution of reproduction of content data means that each image data is sequentially switched and displayed, and it is not always necessary to scroll all the data in a line, but only to switch each data. But you can. Similarly, the movement of the scroll bar / slider 330 on the scroll bar 320 does not necessarily have to be continuous, and is stationary while the image data is displayed, and the position is displayed when the next image data is displayed. It may be changed and displayed.

  The operation for reproducing the content data is performed using the data backward button 2201 and the data forward button 2202. That is, when the data backward button 2201 is pressed, the display shifts to display of the previous image data, and when the data forward button 2202 is pressed, the display shifts to display of the next image data.

  When the digital camera as the information display device 100 can record moving image data in addition to still image data and the content data includes moving image data, the moving image data is stored in the scroll bar 320 as described above. It is desirable to display 340, which is the reproduction section of, by color.

  The reproduction control of the moving image data is also performed using the data reverse button 2201 and the data forward button 2202. That is, when the data backward button 2201 is kept pressed longer than a predetermined time, the moving image data is rewound and played back. When the data reverse button 2201 is pressed shorter than the predetermined time and released, the moving image data returns to the head. When the data forward button 2202 is kept pressed longer than a predetermined time, fast-forward playback is performed, and when it is pressed shorter than the predetermined time and released, scroll playback is performed to display the next image data.

  It should be noted that another playback / stop button may be used in place of the data backward button 2201 and the data forward button 2202 for playback control of moving image data.

  FIG. 17 is a diagram illustrating a schematic configuration of the information display device 100 when the information display device 100 is a personal computer (hereinafter referred to as a personal computer). In this case, the reproduction instruction of the content data is performed with a pointing device attached to the personal computer. That is, the operation unit 141 is a pointing device.

  As shown in FIG. 17, the personal computer that is the information display device 100 includes a display unit (including each component shown in FIG. 4) 142, a keyboard 1601, a mouse 1602, and a speaker 1610 that is an audio output unit 182. ing. In the display screen area 300, a stop button 1607 and a play button 1608, which are UI parts, are displayed. The stop button 1607 and the play button 1608 are buttons for playing and stopping the content data.

  The reproduction of the content data is automatically performed as described above, and is also performed when the user operates the stop button 1607 and the reproduction button 1608 by using the mouse 1602 (operation unit 141). The mouse 1602 includes a left click button 1603, a right click button 1604, and a scroll wheel 1605.

  When the user moves the mouse 1602 itself on the desk, the cursor 1606 moves on the display screen of the display unit 142 in accordance with the operation of the mouse 1602. For example, when the user places the cursor 1606 displayed on the display screen of the display unit 142 on the stop button 1607 and clicks the button 1603 (hereinafter referred to as left click), the playback of the content data is temporarily performed. When playback is stopped and the cursor 1606 is superimposed on the playback button 1608 and left-clicked, playback is started. Note that if the stop button 1607 is left-clicked while playback of content data is stopped, and if the playback button 1608 is left-clicked during playback, the playback state does not change. In addition, the stop button 1607 and the playback button 1608 are shared, and are displayed as a stop button like the button 1607 during playback. When the mouse 1602 is clicked at this time, the stop button 1607 functions as a stop button, and when playback is stopped, the button 1608 is displayed. In this case, a configuration may be adopted in which switching is performed so as to function as a playback start button when the mouse 1602 is clicked at this time.

  The change in the content data playback state caused by left-clicking the buttons 1607 and 1608 is the same as that when the information display device 100 is a television, and the description thereof will be omitted.

  Also, the playback point of the content data can be moved continuously by aligning the cursor 1606 with the scroll bar / slider 330 and dragging it up and down using the button 1603. This operation can also be performed by rotating the scroll wheel 1605 back and forth.

  Further, the playback point of the content data can be moved discretely by moving the cursor 1606 to a portion of the scroll bar 320 other than the scroll bar / slider 330 and left-clicking.

  In addition to this, UI parts such as scroll bars and buttons for setting the playback speed and direction to arbitrary values are separately displayed in the display screen area 300, and the speed is controlled by operating the UI parts with the mouse 1602. You may be able to do it.

  Further, the above-described operation with the mouse 1602 may be executed by a key press operation on the keyboard 1601. That is, the mouse 1602 and the keyboard 1601 function as the operation unit 141.

  Further, when reproducing the content data, the output data instruction unit 104 may be performed by a remote controller as shown in FIGS. That is, this remote controller corresponds to the output data instruction unit 104. That is, in the present embodiment, the operation unit 141 may be provided separately from the information display device.

  When the content data includes moving image data (element data) such as moving image data that is reproduced while the scroll of the display screen region 300 is paused, the content data is currently displayed in the reproduction region as shown in FIG. It is desirable that the time taken to reproduce the element data displayed in different colors. That is, it is more preferable that only the portion corresponding to the element data being currently reproduced in the entire content data is displayed in a divided manner.

  In this case, when the element data is being reproduced, when the cursor is moved to the scroll bar / slider 330 and the scroll bar / slider 330 is dragged in the vertical direction using the button 1603, the scroll bar / slider 330 is moved inside the section 340. If it goes outside the section 340 as a movement of the reproduction point of the element data, it functions as a scroll function of the content data.

  Further, during the reproduction of the moving image data, that is, in the section 340 indicated by the scroll bar, a portion other than the scroll bar / slider 330 may be dragged in the vertical direction. That is, in the present embodiment, during the reproduction of the moving image data, the scroll reproduction is paused and the moving image data is reproduced. However, during the reproduction of the moving image data by a user operation, the moving image data is reproduced. When a scroll operation command is issued to view element data other than data, the scroll operation may be performed based on the user's operation while reproducing the moving image data. That is, the drag operation by the user functions as a scroll function for content data.

  As a result, during playback of element data that is normally played back in a state where scrolling of the display screen area 300 is temporarily stopped, such as moving image data, there is no change in the playback state. Element data can be displayed. As a result, for example, when the video data is being played back in full screen display, if you want to check the commentary text before and after the video data while playing the video data, the playback area is slightly reduced while the video data is being played back. Since the commentary text can be viewed by scrolling, the convenience can be improved.

  Further, as described above, when the moving image data is slightly shifted in the scroll direction and the peripheral element data of the moving image data is viewed, depending on the degree of scrolling, the entire display area of the moving image data is within the reproduction area. You may decide to perform a scaling process at any time.

  Note that, when the scroll bar / slider 330 is present in the section 340, the display screen area 300 is moved from its original position by the user's scrolling operation, and the moving image data being reproduced is displayed. When the process ends and the transition to the next element data is made by scroll reproduction, it is desirable that the display screen automatically return to the original position, that is, the position of the moving image data that has been reproduced.

  As described above, the information display apparatus 100 according to the present embodiment displays content data in which a plurality of element data is arranged along one coordinate axis in a playback area from the playback start point of the content data. A scroll operation control unit 133 that performs scroll reproduction toward the screen, a moving image reproduction control unit 171 that reproduces the moving image data in the reproduction area when the element data matches the moving image data, and a display area for the moving image data. And an output element data determination unit 153 that detects whether or not the image is within the reproduction area by reproduction. When the scroll operation control unit 133 detects that the display area of the moving image data is within the reproduction area based on the detection result of the output element data determination unit 153, the scroll operation control unit 133 stops the scroll reproduction and The moving image reproduction control unit 171 is configured to control the reproduction of data.

  According to the above configuration, when content data including moving image data is reproduced, it is determined (detected) whether or not the display region of the moving image data is within the reproduction region. Specifically, for example, the output element data determination unit 153 acquires the display area of the moving image data, and detects whether the acquired display area fits in the reproduction area when the content data is scroll-reproduced. When the moving image data display area falls within the reproduction area, the scroll reproduction is stopped and the moving image data is reproduced. In other words, the user does not have to be aware of the type of element data such as whether the element data included in the content data is moving image data, still image data, or text data. You can browse the data. Specifically, the user can browse all element data included in the content data simply by issuing a browsing command for the content data. As a result, the content data can be scroll-reproduced and browsed with fewer operations compared to the conventional case, so that convenience is improved.

  The information display apparatus according to the present embodiment can perform both scrolling of content data and playback control of moving images and animation data included in the content data with one operation system. For example, when scroll playback is performed automatically, both scroll operation and moving image data playback operation are not required. In addition, for example, in the case where manual scroll playback is performed, the scroll operation is performed manually. However, in conjunction with this scroll operation, the video data included in the content data can be automatically played back. The user only needs to perform an operation for performing scroll reproduction. That is, scroll reproduction and moving image reproduction can be realized by one operation system. In addition, for example, when browsing content data using a remote controller, in order to control a browser that displays a conventional HTML document, a pointing operation that specifies moving image data to be included, in addition to a scroll operation, Although it is necessary to devise a method such as providing separate buttons for operations such as playback start and stop, the information display device according to the present embodiment simply adds a command to start scroll playback to content data. All included element data can be browsed.

  Further, when the display area related to the moving image data is larger than the reproduction area, the display area of the moving image data is scaled to fit within the reproduction area, so that the entire moving image data can be browsed.

  Further, the information display apparatus 100 according to the present embodiment can reproduce all parts of all element data included in the content data by performing scroll reproduction. And the user can browse all element data only by seeing at the time of browsing content data. Therefore, for example, an operation system such as a button necessary for browsing operation such as a button on a remote controller can be simplified.

  Further, since the content data is continuously reproduced as a series of data, the discontinuous transition as in the presentation document does not occur. This enables browsing while easily grasping the relationship between the element data in the content data. Further, for example, since there is no break due to the size of the screen or paper in the content data, such as a slide in a presentation document, it is not necessary to adjust the expression content, the size of characters, and the layout. Since the time for which certain element data is reproduced is proportional to the length of the display area in the scroll direction of the content data, for example, 10 lines of text data arranged between the same lines are 2 lines of 5 lines of text data. Since the scrolling display takes twice as long, the user can browse the content data very naturally.

  Furthermore, for example, when reproducing content data, even in the case of content data including a large amount of element data, a memory for only the element data existing in the reproduction area currently displayed on the screen and its periphery is secured. There is also a merit that it is only necessary to prepare for reproduction. That is, for example, by storing only element data to be reproduced next to element data being currently reproduced in the memory, it is not necessary to store all element data included in the content data at once.

  Next, an example of content data reproduced by the information display device of the present invention will be specifically described.

  FIG. 19 is a diagram showing the relationship between the display screen area 300 and the content data 350 when the content data 350 is a multimedia document including text data, still image data, moving image data 1801 and moving image data 1802. .

  Since the video data 1801 and 1802 are normally played back at different times, when the content data is described in HTML and displayed on a conventional WWW browser as shown in FIG. 19, the video data 1801 and 1802 are displayed. 1802 is pasted in the form of an applet including a button for controlling reproduction of each data. Then, conventionally, a user who browses the content data needs to perform both an operation of scrolling the screen in the vertical direction and an operation of performing reproduction control of the moving image data. For example, when the scroll control is automatically executed in the information display device, the scroll operation by the user is unnecessary, but the playback control of the moving image data 1801 and 1802 needs to be performed by the user. If the operation for stopping automatic scrolling is not performed when the moving image data comes into the screen, reproduction of the moving image data becomes invisible.

  In the information display device of the present embodiment, not only the screen scrolling process is automatically performed, but also the scrolling process is paused when the moving image data falls within the reproduction area, and the moving image data is reproduced in this state. The user does not need to perform a reproduction processing operation for moving image data, and can browse all of the content data.

  FIG. 20 is a diagram showing the relationship between document groups associated by hyperlinks. The document 1900 includes a description (hereinafter referred to as an anchor) 1901 associated with the document 1910 (encapsulated content data), an anchor 1902 to the document 1920, an anchor 1903 to the document 1930, an anchor 1904 to the document 1940, An anchor 1905 and various element data are included.

  When the document 1900 is described in the HTML format and viewed with a conventional WWW browser, the document 1900 is displayed first. When the cursor is moved to the anchor 1901 and a link transition operation is performed, the document 1910 is read and displayed. The The same applies to the anchors 1902-1905.

  FIG. 21 is a diagram schematically showing the relationship of the document group when the document 1920 and the document 1940 are inserted into the document 1900 in the document group shown in FIG. In the configuration of FIG. 20, in order to display the document 1920 and the document 1940, it is necessary to trace from the anchors 1902 and 1904 in the document 1900. However, in the configuration of FIG. 21, the documents 1920 and 1940 are read into the document 1900 and displayed. Therefore, the contents of the documents 1920 and 1940 can be integrated into one content data and displayed without performing a link transition operation.

  Since the information display apparatus according to the present embodiment can automatically scroll and display even content data that has a large screen size, a document into which a linked document is inserted as shown in FIG. It is also effective when displaying.

  As shown in FIGS. 20 to 21, as an example of content data that is assumed to be convenient by incorporating a link destination document into a link source document, a collection of links to a document group in which a news article is described, such as a news site, is used. Such a thing is mentioned. Here, by reading and displaying a part or all of the linked news articles in the link source page, the user views the inserted linked document without performing a link transition operation. be able to. Further, if the above-described content data is reproduced by the information display apparatus according to the present embodiment, a series of news articles can be reproduced as if a news program on a television is being watched.

  Which of the linked document groups is inserted into the link source document may be inserted with priority given to the document with the latest update date or with priority given to the document with the most accesses. Alternatively, a user with high preference may be inserted with priority, or any other rules may be followed.

  Further, as an example of the content data that is assumed to be convenient by incorporating the link destination document (other content data) into the link source document (content data), search of a Web page or the like can be cited. There are various forms of search targets, such as Web pages that contain keywords, and product groups that satisfy certain conditions on shopping sites. In any case, the search results are displayed in a list and each item is described. In many cases, a detailed description of the item is displayed by making a link transition from.

  Therefore, if a part or all of the linked documents in the search results are inserted into the link source document by the mechanism as described above, the inserted document is browsed without performing a link transition operation. Will be able to.

  Which of the linked document groups is inserted into the link source document may be inserted with priority given to the document with the latest update date or with priority given to the document with the most accesses. Alternatively, the one having a high degree of coincidence with the search key may be inserted with priority, or any other rule may be followed.

  If there are a plurality of search keys, the link source document to the document group matching the first search key is displayed first, and the document group matching the second and subsequent search keys is read and linked. You may make it insert in an original document.

  If the link destination document is inserted into the link source document or the order of anchors to the link destination document can be changed in various ways by multiple rules, it is possible to easily switch between them. It is desirable to be. For example, a button such as “New Arrival Order” or “Match Order” is prepared, and pressing this button changes whether or not the button is inserted into the link source document, or changes the display order.

  Furthermore, when the content data is reproduced by the information display apparatus according to the present embodiment, the scrolling speed may be changed according to the contents of the linked document.

  In addition, when the above content data is automatically and repeatedly reproduced, the insertion of the linked document, the order of anchors, the reproduction speed of the inserted document, etc. are changed each time the content data is repeated. Good.

  When inserting a link destination document, the entire document may be inserted, or only a part of the document may be inserted, or the text size, image, video size, and quality may be changed. .

  As described above, when content data including other content data is scroll-reproduced, the data acquisition unit 130 acquires all the content data prior to reproduction, and the content data analysis unit 154 acquires the acquisition data. It is desirable that all the content data is analyzed and the result of the analysis is handled in a unified manner by the reproduction control data structure management unit 152. At this time, the scroll bar control unit 151 displays the scroll bar 320 as a whole of the total reproduction time of content data including the reproduction time of other content data.

  For example, when the content data according to the present embodiment is displayed by preview display or high-speed playback that plays back at a speed higher than a predetermined speed, the scroll operation control unit 133 plays back element data included in the content data. Instead of this, the content data reproduction control unit 155 may be controlled to reproduce the substitute data of the element data. The alternative data is, for example, a thumbnail.

  Note that the high-speed playback indicates a playback mode when, for example, a scroll speed is designated by a user instruction and the designated scroll speed is faster than a preset speed. .

  Next, creation of content data to be played back in the information display apparatus according to the present embodiment will be described. Here, in particular, the content data is assumed to be a collection of each element data and a script linking each element data, and the content data is created on the mobile phone, and the created content data is stored in a storage area in the mobile phone. Although the case where it preserve | saves or transmits as a message to another apparatus is described, it is not limited to this case.

  FIG. 24 is a block diagram showing a functional configuration when creating content data in the information display apparatus 100. Referring to FIG. 24, the mobile phone that is information display apparatus 100 according to the present embodiment is configured to include an operation reception unit 2301, a terminal function execution unit 2302, a data structure management unit 2303, and a script creation unit 2304. The These functions are realized by the control unit 12 reading a program stored in the storage unit 13 and executing the program to control each unit of the hardware configuration shown in FIG.

  The operation reception unit 2301 receives an operation from the user.

  The terminal function execution unit 2302 executes a terminal function necessary for creating content data. Specifically, a text editor for text input, still image data and video data, audio / music data, etc., a file management function for saving created content data, a function for displaying data on the screen, This is a function of emitting sound from a speaker.

  The data structure management unit 2303 manages content data being created.

  The script creation unit 2304 creates a script that links each element data, and creates content data in a format that can be reproduced by the information display device 100.

  Next, the flow of content data creation processing will be described using the flowchart of FIG. 25 and the screen transition diagrams of FIGS. 26 and 27. FIG.

  When the creation of content data is based on the input of text, a text editor is first activated (S2401 in FIG. 25, (a) in FIG. 26). When the user performs a character input operation (“character input” in S2402 in FIG. 25), the text editor accepts the character input operation by the user, and performs the character input and display of the input character (S2403 in FIG. 25, FIG. 26 (b)).

  Next, in a state where the above text editor is activated, the user performs an operation of selecting “menu” (“menu” is selected in S2402 in FIG. 25, and “menu” is selected by pressing a soft key in FIG. 26B). ) Is displayed on the screen (S2404 in FIG. 25, FIG. 26 (c)). On this menu screen, it is possible to perform operations for reading media files such as still image data, moving image data, and sound data, and calling a preview function for reproducing content data that has been edited so far.

  Here, a case where moving image data already recorded is inserted into content data will be described. When the above option menu screen is displayed, an input for instructing file insertion is made (“file insertion” in S2405 in FIG. 25, “picture insertion”, “movie insertion”, “sound insertion” in FIG. 26C). Is selected (here, “movie insertion” is selected), a screen for selecting a file to be inserted is displayed (S2406 in FIG. 25, FIG. 26 (d)). When the user selects a desired file on this screen (S2407 in FIG. 25, when the cursor is placed on the desired file in FIG. 26 (d) and “select” is selected by pressing a soft key), the selected file is selected. Element data is inserted into the content data, and the process returns to the text editor (S2407 to S2402 in FIG. 25, FIG. 26 (e)).

  Here, on the text editor screen after the element data is inserted, the inserted element data may be displayed as it is, or a representative image, thumbnail, icon, or the like may be displayed.

  In the media file reading operation described above, the element data is read from the memory built in the mobile phone which is the information display device 100, the external recording medium attached to the mobile phone, and the communication function is used. Element data may be obtained from an external device, and if the mobile phone has a camera function or voice recorder function, the camera function or voice recorder function is called and a still image, moving image, or sound is called. Data may be recorded on the spot and the recorded element data may be adopted.

  On the other hand, when an operation for calling the preview function is performed on the menu screen, a script is created for the part that has been edited so far (S2408 in FIG. 25), and the created content data is reproduced (S2409 in FIG. 25). ). When the preview process ends, the process returns to the text editor (S2409 to S2402 in FIG. 25).

  The content data is completed by repeating the same procedure as described above (FIG. 27A). Here, when “confirm” is selected by pressing the soft key (“confirm” in 2402 of FIG. 25), the screen shifts to a confirmation screen display (S2410 of FIG. 25, FIG. 27B). On this screen, the user can select whether to send the created content data as a message or simply save it.

  Further, for example, when “transmission” is selected by pressing a soft key in a state where a transmission destination address is input, a script creation process is performed (S2412 in FIG. 25). The content data that has been script-processed using is transmitted to the transmission destination address (S2413 in FIG. 25). The screen display at this time is, for example, as shown in FIGS.

  On the other hand, when “Registration” is selected by pressing the soft key on the confirmation screen, script creation processing is performed (S2414 in FIG. 25). Upon completion, the storage area of the mobile phone or the external storage attached to the mobile phone is performed. Saved on media.

  This completes the process of creating content data in the mobile phone that is the information display device 100.

  Here, the data structure for creating the content data and the script to be created will be briefly described.

  FIG. 28 is a diagram illustrating a specific example of the data structure managed by the data structure management unit 2303. As shown in FIG. 28B, for each element data included in the content data, an instance of the DisplayContent class that holds attribute values such as media type, file name, and display area is created. Here, the display area is a relative coordinate value, width, and height from the origin O (0, 0) in FIG. 8 of each element data.

  This set of instances is integrated and managed by the DisplayScheduler class shown in FIG.

  FIG. 29 is a table showing the result of assigning the attribute value to the instance of FIG. 28B for each element data. The value of each item in the table of FIG. 29 is updated every time the user inputs a character or inserts element data. Note that the playback time zone of each element data is generally proportional to the size of the display area that each element data occupies on the coordinate plane of the content data. For example, when text data is input by user input, If the size of the display area is determined by inserting the image data, it is automatically determined. Further, a means for allowing the user to set the reproduction time of each element data independently of the size of the display area may be provided so that the reproduction time can be freely set for each element data. In this case, the scroll speed when reproducing the created content data can be flexibly changed according to the user's will.

  When performing preview processing during content data creation, or transmission and storage processing after content data creation is completed, script creation processing is performed. FIG. 30 is an example of a script description created based on the data structure of FIG. The script shown in FIG. 30 and the set of media files referenced from FIG. 30 are handled as content data.

  In the information display device 100, when a content data reproduction command is issued, the output control unit 105 or the output data reading unit 106 analyzes the script as shown in FIG. After the attribute value of each element data is expanded to such a data structure, each element data is read and reproduced. During this playback process, the position of the playback point on the time axis is managed by the value of CurrentTime, which is the attribute of the DisplayScheduler class in FIG. The CurrentTime value is incremented every predetermined time (usually 1 second) during forward playback. By comparing this CurrentTime value with the BeginTime value and EndTime value of each element data in FIG. Which part should be displayed in the reproduction area is calculated, and based on this, element data is read, drawn, and reproduced.

  In this embodiment, an example has been described in which content data is handled as a set of each element data and a script describing each element data, a reference to each element data, and each attribute value. However, the present invention does not necessarily take this form. Good. For example, the content data may be defined as binary data in which each element data and all of the attribute values for reproduction thereof are collected. In this case, binary data creation processing is performed instead of the script creation processing described above. Further, at the time of reproducing content data, the binary data is analyzed and, for example, the reproduction processing is performed after expanding the data structure as described above. Further, a directory for storing element data groups in the file system may be used as content data. Further, element data included in a plurality of files may be set as one content data. In this case, the reproduction process can be performed by extracting the attributes for reproduction from the attributes of the element data and constructing the data structure as shown in FIGS.

  In the above description, the process of creating content data to be played back by the information display apparatus 100 has been described. However, content data that can be played back by a conventional WWW browser, presentation software, or the like in the creation of the content data is also described. It is desirable that it can be created.

  For example, in the data structure of FIG. 28, the attribute relating to time is ignored, and the HTML file is created based on the attribute relating to the display area and the media type. At this time, when the content data includes moving image data, a button group for reproducing the moving image data is arranged near the display region of the moving image data, and is reproduced for the first time when the user operates it. Alternatively, if only a hyperlink to the moving image data is described so that it can be played back when the user performs a link operation, scroll playback as described above is not possible, but browsing is possible with a conventional WWW browser. FIG. 31 shows an example of an output result when HTML that can be browsed by a conventional WWW browser is output instead of outputting the script of FIG. 30.

  In addition, when the content data described in the present embodiment does not fit in the playback area of the playback device, for example, the content data is divided into a plurality of pieces in the scroll direction and configured as a series of slides, and the data format is set to a predetermined value. By converting it into a format, it can be browsed with presentation software or used as a message to be transmitted / received by MMS (Multimedia Messaging Services). FIG. 32 shows an example of an output result when SMIL that can be browsed by the conventional MMS playback software is output instead of outputting the script of FIG. The script in FIG. 32 and the element data referenced from the script in FIG. 32 can be displayed in a slide show format as shown in FIG. 33, for example.

  In addition, a method of converting content data created by the above-described method into a format that can be reproduced by the device that reproduces the content data may be adopted.

  Further, when the content data described in the present embodiment is transmitted to another device by e-mail or the like, and it is unclear whether or not the content data can be correctly reproduced at the transmission destination (the transmission destination device is in the present embodiment). In the case where it is unknown whether or not the information display device 100 is related to the above, the script shown in FIGS. 31 and 32 is simultaneously added to the script shown in FIG. 30 and the element data referenced from the script shown in FIG. Alternatively, it may be transmitted separately.

[Second Embodiment]
Another embodiment of the present invention will be described as follows. For convenience of explanation, members having the same functions as those shown in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As a second embodiment, in the information display device 100, a link that connects an arbitrary point A (start point) and point B (end point) in the content data reproduction direction in the content data analysis stage by the content data analysis unit 154 And when the point A reaches the reproduction area during the scroll reproduction of the content data, a function is added in which the content data displayed in the reproduction area is moved to the point B immediately after following the generated link. The case will be described.

  FIG. 34 is a graph showing an example of a change in dy (t) / dt when 0 ≦ t ≦ T in the content data 350 when a link connecting the point A directly above and the point B directly below the moving image data 360 is provided. is there. When the solid line immediately transitions from the point A to the point B, the alternate long and short dash line indicates a change when the moving image data 360 is reproduced normally without following the link.

  When the link transitions to another point in the content data as described above, the element data of the link destination is drawn immediately below the element data of the link source (elements between the link source and link destination element data). The data may be displayed continuously as if it were a series of data (without drawing data), and the element data between the link source and link destination element data is faster than the normal scrolling speed. The display form that visually appeals to the user to move to the element data at a distant position that is not adjacent by scrolling playback may be used, or the transition may be switched discontinuously. In the case of a discontinuous transition, it is desirable to take a display form in which scrolling is temporarily stopped before the transition and a message or an image indicating the transition is displayed.

  Whether to perform transition between points separated according to the link or to reproduce along the coordinate axis without following the link may be determined by a conditional branch as described later.

  Possible uses for this link function are as follows.

  For example, some element data included in content data can be viewed only on a terminal that has a corresponding device or that has corresponding software installed, and cannot be played on a terminal that does not support it. , Providing a link connecting the front and rear of the element data, and when the content data is played back immediately before the element data, if it is a compatible terminal, it is reproduced as it is along the coordinate axis. The content data is shifted (jumped) immediately after the element data according to the link. The link is set at the time of content data analysis in the playback terminal.

  Here, a flow of content data analysis processing including link setting in the content data analysis unit 154 will be described with reference to FIG. Referring to FIG. 35, if unanalyzed element data remains (YES in S3501), content data analysis unit 154 analyzes the next element data (S3502). As a result of the analysis, if it is determined that the element data cannot be reproduced by the terminal (NO in S3503), the content data analysis unit 154 first determines whether there is a link with no end point set in the content data. If it is not checked (NO in S3506), a starting point is set to generate a link (S3507). If the subsequent data can be reproduced (YES in S3503, YES in S3504), the content data analysis unit 154 sets the end point (arrival point) of the link. The data structure when link information is set is, for example, as shown in FIG. Referring to FIG. 36, when it is determined that video1.mpg cannot be played back by the terminal, the playback section of video1.mpg is 12 to 28 seconds. A link having a start point of 12 seconds and an end point of 28 seconds is created in the content data (2 in FIG. 36A). Here, the difference from FIG. 28 is that a Reason_code field is added in FIG. An example of the reason_code management table is shown in FIG. 36 (B). When each element data is reproducible on the device, 0 is indicated. , ... are distinguished by numerical values. In accordance with the data structure in FIG. 36, the scroll operation control unit 133 performs the scroll reproduction of the content data, whereby the reproduction process of each element data is performed while the display area moves along the locus shown in the graph of FIG.

  FIG. 37 shows a case where a message indicating that playback is not possible is displayed in the area where video1.mpg is originally displayed, instead of skipping playback by link for video1.mpg that is not played in the above example. It is an example. Specifically, as shown in FIG. 37, a message 3701 indicating that reproduction is impossible is shown to the user. Here, the “format that cannot be reproduced” described in the message 3701 is text embedded with reference to the Message field in FIG. Here, the message 3701 may be in any form as long as it is media data that can be reproduced by the information display apparatus 100. In the example of FIG. 37, the message 3701 is text data. , Audio data, and combinations thereof. Further, the area occupied in the content data 350 of the message 3701 may be the same position and size as video1.mpg that should have been displayed here, or may be different. Also, the playback time of the message 3701 may be the same as or different from the playback time of video1.mpg. The scrolling speed may be any form such as temporarily stopping, reducing the speed, or scrolling at the same speed.

[Third embodiment]
Another embodiment of the present invention will be described as follows. For convenience of explanation, members having the same functions as those shown in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As a third embodiment, a link connecting arbitrary points A and B is embedded in the content data in advance, and the link is in a valid state (link transition state) or invalid state (link non-transition state) depending on conditions. When the content data is played, when the point A is reached, if the link is in the valid state, the link is immediately moved to the point B, but the link is in the invalid state. If there is, a case will be described in which a function characterized by taking a reproduction form in which scroll reproduction is continued without following a link is added.

  As an example of using the link function in the third embodiment, a case of moving from point A in the content data reproduction direction to point B passing before point A will be described. For example, it is assumed that element data included in content data can accept a user's input operation, and the user can select or input a character input operation on a series of element data during scroll reproduction. In this case, if the input screen is left unattended, the screen scrolls out. Therefore, when the input is not completed, the reproduction is resumed by automatically returning to the beginning of the series of element data. If input has been completed, the process proceeds to the next element data. As a similar example, a case where a game or educational content is handled can be considered. The user selects and answers the questions, and if the correct answer rate is lower than the predetermined value, the user can go back and try again. If the correct answer rate exceeds the predetermined value, the user can proceed to the next step. It is an example.

  FIG. 38 shows a description example of the script constituting the content data in this example. Referring to FIG. 38, since repeatCount = “indefinite” is described in the 15th line, the range surrounded by <seq> (from the 15th line to the 27th line) is repeatedly reproduced indefinitely. It will be. The 25th to 26th lines are link descriptions for moving to the element (the 28th line) in the content data with id = “4th_question”. If this link is valid, it is possible to escape from infinite repetition by moving to the 28th line, but if the link is invalid, the 15th to 27th lines are still reproduced repeatedly. The valid / invalid state is described in the text file “validity.txt”. If “true” is described in this file, the link is valid. If “false” is described, the link is invalid. Initially, “false” is described in “validity.txt”. The animation data reproduced and executed in the 17th, 20th, and 23rd lines is element data that accepts the user's input operation. An animation data reproduction program that reproduces and executes these data processes the user's input, and satisfies a predetermined condition. When satisfied, the content of “validity.txt” is rewritten to “true”. As a result, the link described in the 25th to 26th lines becomes valid, and the reproduction moves to the 28th line.

  As yet another example of using the link function in the third embodiment, since a link is normally set, a predetermined section of content data is not reproduced. However, if the predetermined condition is satisfied, the link is released. There may be a case where the predetermined section is also reproduced. For example, in element data that a user selects and inputs as in a questionnaire, a more detailed question appears and prompts an answer only when a predetermined selection is made. An example in which no question appears, or an example in which a bonus stage appears when the user's grade is excellent in the game content can be considered.

  In this way, by adding a mechanism that can set / cancel links in terminals that play back content data, it is necessary to change whether or not element data can be played back or change according to various conditions of the terminal. Even in such a case, since they can be expressed by one content data, it is considered to be effective particularly when taking a form in which messages are transmitted and received between terminals or between service terminals.

  A description example of the script constituting the content data in this example is shown in FIG. Referring to FIG. 39, the 24th to 25th lines are link descriptions for moving to the element (the 29th line) in the content data with id = “4th_question”. If this link is valid, it moves to the 29th line, but if this link is invalid, it proceeds to the 26th line. The valid / invalid state is described in “validity.txt” and initially described as “true”, so the 26th to 28th lines will not pass. This section is a description corresponding to the bonus stage described above. The animation data reproduced and executed in the 16th, 19th, and 22nd lines is element data that accepts the user's input operation, and an animation data reproduction program that reproduces and executes these data processes the user's input operation to obtain a predetermined condition. If the condition is satisfied, the content of “validity.txt” is rewritten to “false”. As a result, the link described in the 24th to 25th lines becomes invalid, and reproduction passes through the 26th to 28th lines.

  Furthermore, a method for reproducing content data and creating content data as described above can be provided as a program. Such a program is stored in a computer-readable recording medium such as a flexible disk attached to the computer, a CD-ROM (Compact Disc-Read Only Memory), a ROM (Read Only Memory), a RAM (Random Access Memory), and a memory card. And can be provided as a program product. Alternatively, the program can be provided by being recorded on a recording medium such as a hard disk built in the computer. A program can also be provided by downloading via a network.

  The provided program product is installed in a program storage unit such as a hard disk and executed. The program product includes the program itself and a recording medium on which the program is recorded.

  In the above-described embodiment, each member constituting the information display device 100 is a functional block that is realized by executing a program code stored in a recording medium such as a ROM or a RAM by a calculation unit such as a CPU. Although the case of “some” has been described as an example, it may be realized by hardware that performs the same processing. Further, it can also be realized by combining hardware that performs a part of the processing and the above-described calculation means that executes the program code for controlling the hardware and the remaining processing. Further, even among the members described above as hardware, the hardware for performing a part of the processing and the arithmetic means for executing the program code for performing the control of the hardware and the remaining processing It can also be realized by combining them. The arithmetic means may be a single unit, or a plurality of arithmetic means connected via a bus inside the apparatus or various communication paths may execute the program code jointly.

  The program code itself that can be directly executed by the computing means, or a program as data that can be generated by a process such as decompression described later, stores the program (program code or the data) in a recording medium, A recording medium is distributed, or the program is distributed by being transmitted by a communication means for transmitting via a wired or wireless communication path, and is executed by the arithmetic means.

  In addition, when transmitting via a communication path, each transmission medium which comprises a communication path propagates the signal sequence which shows a program, and the said program is transmitted via the said communication path. Further, when transmitting the signal sequence, the transmission device may superimpose the signal sequence on the carrier by modulating the carrier with the signal sequence indicating the program. In this case, the signal sequence is restored by the receiving apparatus demodulating the carrier wave. On the other hand, when transmitting the signal sequence, the transmission device may divide and transmit the signal sequence as a digital data sequence. In this case, the receiving apparatus concatenates the received packet groups and restores the signal sequence. Further, when the transmission apparatus transmits a signal sequence, the signal sequence may be multiplexed with another signal sequence and transmitted by a method such as time division / frequency division / code division. In this case, the receiving apparatus extracts and restores individual signal sequences from the multiplexed signal sequence. In any case, the same effect can be obtained if the program can be transmitted via the communication path.

  Here, it is preferable that the recording medium for distributing the program is removable, but it does not matter whether the recording medium after distributing the program is removable. In addition, the recording medium can be rewritten (written), volatile, or the recording method and shape as long as a program is stored. Examples of recording media include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks and hard disks, CD-ROMs, magneto-optical disks (MO), mini-discs (MD) and digital A disk such as a video disk (DVD) may be mentioned. The recording medium may be a card such as an IC card or an optical card, or a semiconductor memory such as a mask ROM, EPROM, EEPROM, or flash ROM. Or the memory formed in calculating means, such as CPU, may be sufficient.

  The program code may be a code for instructing the arithmetic means of all the procedures of the processes, or a basic program capable of executing a part or all of the processes by calling according to a predetermined procedure. If (for example, an operating system or a library) already exists, a part or all of the entire procedure may be replaced with a code or a pointer that instructs the arithmetic means to call the basic program.

  The format for storing the program in the recording medium may be a storage format that can be accessed and executed by the arithmetic means, for example, as in a state where the program is stored in the real memory, or is stored in the real memory. Installed in the local recording medium from the storage format after being installed in a local recording medium (for example, real memory or hard disk) that is always accessible by the computing means, or from a network or a transportable recording medium The previous storage format may be used. Further, the program is not limited to the compiled object code, but may be stored as source code or intermediate code generated during interpretation or compilation. In any case, the above calculation is performed by a process such as decompression of compressed information, decoding of encoded information, interpretation, compilation, linking, allocation to real memory, or a combination of processes. If the means can be converted into an executable format, the same effect can be obtained regardless of the format in which the program is stored in the recording medium.

  The information display device according to the present embodiment controls scroll playback means for scrolling playback of content data including one or more element data, and video playback means for playing back video data of the element data. An information display device comprising a reproduction control means (data reproduction means), wherein the content data is one or more element data included in the content data arranged along one coordinate axis, The reproduction control unit controls the scroll reproduction unit and the moving image reproduction unit so as to reproduce the content data including reproduction of the moving image data in time series by scroll reproducing the content data along the coordinate axis. The structure which is a thing may be sufficient.

  The information display device further includes scroll bar display means for displaying a scroll bar, and the scroll bar display means includes a scroll bar included in the scroll bar in accordance with the state of reproduction of the content data by the scroll reproduction means. -It is more preferable that the display position of the slider is updated. Thereby, the user can grasp the content data reproduction status.

  Further, the information display device is more preferably configured such that the scroll bar / slider indicates at which point the time required for reproduction of the content data is currently located. As a result, the user can grasp which point is currently in the time required for content data reproduction.

  In the information display device, it is more preferable that the reproduction control unit automatically performs scroll reproduction and moving image data reproduction along the coordinate axis of the content data. This eliminates the need for the user to perform any operation when reproducing the content data.

In the information display device, it is more preferable that the reproduction control unit controls the scroll reproduction unit so that scroll reproduction along the coordinate axis of the content data is performed at a constant speed. Thereby, the user can browse the content data at a constant pace. In addition, the information display device allows the reproduction control means to scroll along the coordinate axis of the content data according to the attribute of the element data to be displayed. It is more preferable to control the scroll reproducing means so as to change the speed or temporarily stop. Thereby, the scrolling speed for reproduction can be changed by the element data included in the content data.

  Further, the information display device may be configured such that the reproduction control means performs scroll reproduction immediately before and after the scroll pause and at a different speed from scroll reproduction in other areas. . As a result, it is possible to promptly enter and exit element data to be reproduced while pausing scrolling.

  In addition, the information display device includes an input unit that receives an input from a user, and the information input by the input unit is a reproduction point for reproducing the scroll direction, speed instruction information, and / or content data. The reproduction control means may perform reproduction of the content data according to information input by the input means. Thereby, reproduction of content data can be controlled by the user.

  In the information display device, the input means is preferably a remote controller that can be operated remotely. Thereby, reproduction control of content data can be controlled from a position away from the display device.

In the information display device, the input unit is preferably a pointing device capable of operating the displayed scroll bar and scroll bar / slider. Accordingly, the position of reproduction can be moved by moving the scroll bar / slider. Further, in the information display device, the scroll bar display means is independent of the scroll control of the reproduction control means. A configuration in which the position of the slider is moved at a constant speed is more preferable. As a result, the user can grasp the current position of the time required for reproducing the content data.

In the information display device, when the playback control means pauses the scroll playback, the scroll bar display means displays the playback section of the element data played back in the pause section as the scroll bar A configuration in which the information is displayed (visualized) in an identifiable manner around the slider is more preferable. Thereby, the user can grasp how much of the reproduction time of the element data being currently reproduced occupies out of the reproduction time of the entire content data. In the playback pause section, it is more preferable that the scroll playback along the coordinate axis of the content data can be performed without changing the playback state of the element data played back in the section. And, the operation by the input means for performing the scroll reproduction along the coordinate axis of the content data without changing the reproduction state of the element data is visualized around the scroll bar slider among the scroll bars. A configuration that is realized by moving a portion indicating a reproduction section of element data by a pointing device is more preferable. Thereby, the data existing before and after the element data can be confirmed without changing the reproduction state of the element data.

  The information display device preferably has a configuration in which the element data is any one of text data, still image data, moving image data, audio data, and music data.

  Further, the information display device can define a link referring to other content data in the content data, and the reproduction of the content data can be performed by a user operation or automatically during reproduction of the content data. A configuration that can make a transition to the reproduction of the content data is more preferable. Thereby, it can switch to another (other) content data by link transition.

  In addition, the information display device inserts a part or all of the other content data into the content data in place of the link referring to the other content data in the content data. It may be configured to handle as one piece of content data. Thereby, the content of the linked content data can be browsed without performing a link transition operation.

  In addition, when there are a plurality of the other content data corresponding to the content data, the information display device transmits at least one other content data among the plurality of other content data according to a predetermined rule. The content data may be inserted into the content data. Thereby, when there are a plurality of other content data, only a part of the content data can be viewed together with the content data.

  The information display device may be configured such that the predetermined rule inserts the content data in the content data with priority given to the newest update date among the other content data. As a result, the latest update date and time is linked to the content data (no link transition operation is required), so the user can see the information with the latest update date and time.

  Further, the information display device preferably has a configuration in which the predetermined rule is such that, among the other content data, the one with a large number of accesses is preferentially inserted into the content data.

  The information display device is more preferably configured such that the predetermined rule inserts the content data in the content data with priority given to the other content data having high user preference.

  In the information display device, the predetermined rule may be inserted into the content data with priority given to a search key having a high degree of matching with the search key. preferable.

  Further, it is more preferable that the information display device further changes the reproduction form of the element data included in the other content data inserted in the content data according to the predetermined rule. Thereby, the user can distinguish the inserted data from the original data.

  Further, in the information display device, the change in the reproduction mode is such that any one of a scroll speed, a reproduction time, a reproduction portion, a display area, and a reproduction volume is reproduced. Is more preferable.

  When the information display device determines that the scroll control has reached the playback end point of the content data (end of playback point), the playback control means starts the playback start point of the content data (start of playback point). It is more preferable to return to the above and repeat the reproduction. Thereby, it is possible to reproduce automatically and repeatedly. Moreover, since it automatically returns to the top, there is no need to return to the top by scrolling.

  Further, the information display device preferably has a configuration in which whether or not the other content data referred to from the content data is inserted into the content data is determined by the number of repeated reproductions. Thereby, the data to be inserted can be changed as the reproduction is repeated.

  In the information display device, the reproduction mode of the element data included in the content data and the other content data inserted in the content data changes according to the number of repetitions of the repeated reproduction. A configuration is more preferable. As a result, the playback mode of the inserted data can be changed as playback is repeated.

  Further, it is preferable that the information display device is configured such that when the element data has a size that does not fit in the reproduction area, the information data is displayed in a reproduction area by reducing the display. Thereby, even the element data having a size that does not fit in the reproduction area can be viewed at a glance.

  In the information display device, when the reproduction control unit executes reproduction of the content data at a speed higher than a predetermined speed, the information display device substitutes for the element data instead of reproducing the element data included in the content data. A configuration in which the scroll reproduction means and the moving image reproduction means are controlled so as to reproduce data is more preferable. If the alternative data is a representative part of the element data, the outline of the entire content data can be grasped to some extent during high-speed playback. Further, since the substitute data has a smaller data amount than the element data, data can be loaded / unloaded in a short time, and high-speed reproduction can be performed smoothly.

  Further, the information display device is more preferably configured to further include data creation means for creating content data by adding the element data. This makes it possible to create content data that can be reproduced by the information display device of the present application.

  The information display device further includes a communication function (communication means), and more preferably has a configuration in which the content data is transmitted to and received from another device using the communication function (communication means). Thereby, the content data reproducible by the information display device of the present invention can be transmitted / received to / from another device.

  In addition, when the reproduction control unit receives the reproduction completion report of the moving image data from the moving image reproduction unit, the information display device causes the scroll reproduction unit to start the scroll reproduction of the content data and sets the scroll speed for the scroll reproduction. It is more preferable that the control is performed so that the moving image data display area is scrolled out from the reproduction area so as to be faster than the scrolling speed when the moving image data display area is not displayed in the reproduction area.

  According to the above configuration, the reproduction control unit resumes scroll reproduction when reproduction of moving image data is completed. When resuming scroll playback, the scroll speed is set to the normal scroll speed (when the video data display area is not displayed in the playback area) until the video data display area that has already been played is scrolled out. Scrolling speed is faster than the scrolling speed of the content data in the above, in other words, the scrolling speed in the portion of the content data not including the moving image data. Thereby, after the reproduction of the moving image data is already finished, the other element data can be browsed quickly.

  In the information processing apparatus according to the present embodiment, the content data includes link information connecting an arbitrary start point and an end point, and the scroll playback means sets the playback point to the end point as soon as the playback point reaches the start point. The structure which is made to move to may be sufficient.

  Further, the information processing apparatus according to the present embodiment may be configured such that the link information is included in the content data in advance.

  The information processing apparatus according to the present embodiment is more preferably configured to have a function of newly generating link information that is not included in the content data.

  Further, in the information processing apparatus according to the present embodiment, the link information can be switched between a valid state and an invalid state, and the reproduction control unit is configured to link the link information if the link information is valid. The scroll playback means is controlled so as to transition from the start point to the end point, and if the link information is in an invalid state, the scroll playback means is controlled so that no link transition occurs even if the playback point reaches the link. There may be.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The information display device according to the present invention can be suitably applied to information display devices such as a personal computer, a television, a mobile communication terminal, and a digital camera that can perform scrolling reproduction of content data including moving image data.

It is a block diagram which shows the detailed structure of the output control part in the information display apparatus concerning this Embodiment. It is a block diagram which shows the specific example of the hardware constitutions of the information display apparatus in this Embodiment. It is a block diagram which shows the function structure concerning content data reproduction | regeneration. It is a front view which shows the structure of a reproduction | regeneration area | region. It is a flowchart which shows the flow of the process of scroll reproduction | regeneration and moving image reproduction | regeneration in the information display apparatus concerning this Embodiment. It is the figure which showed typically the change of the display form at the time of content data reproduction | regeneration. It is a flowchart which shows the flow of a process of content data reproduction | regeneration. It is a figure explaining the positional relationship of the content data in a reproduction | regeneration area | region, a display screen area | region, a scroll bar, and a scroll bar slider. It is a graph which shows an example of the scroll speed in scroll reproduction, specifically, a change of s (t), y (t) and dy (t) / dt when 0 ≦ t ≦ T. It is a graph which shows the other example which shows the scroll speed in scroll reproduction, specifically, a change of y (t) and dy (t) / dt. It is a graph which shows the other example which shows the scroll speed in scroll reproduction, specifically, a change of y (t) and dy (t) / dt. It is a figure which shows the example of the content data comprised by arranging a still image data group. 13 is a graph showing an example of changes in y (t) and dy (t) / dt when the content data of FIG. 12 is reproduced. It is a front view which shows the apparatus structure in case an information display apparatus is a television and this is controlled with a remote control. It is a front view which shows the other structure of the said remote control. It is a front view which shows the apparatus structure in case an information display apparatus is a mobile telephone. It is a front view which shows the apparatus structure in case an information display apparatus is a personal computer. It is a graph which shows the time change of y (t). 6 is a diagram schematically showing a positional relationship with a reproduction area when content data is a multimedia document. It is the figure which showed typically the relationship of the document group linked | related by the hyperlink. FIG. 21 is a diagram schematically showing the relationship of document groups when new content data (element data) is inserted into the content data in the document group of FIG. 20. It is drawing which shows an example of the method of visualizing the reproduction progress condition of element data. It is a front view which shows the apparatus structure in case an information display apparatus is a digital camera. It is a block diagram which shows the specific example of a function structure at the time of creating content data in an information display apparatus. It is a flowchart explaining the flow of content data creation processing. It is a screen transition diagram explaining the flow of content data creation processing. It is a screen transition diagram explaining the flow of content data creation processing. It is drawing which shows the example of the data structure managed by a data structure management part. It is a table | surface which shows the example which substituted the value into the data structure. It is a figure which shows the example of the script description which puts together element data reference and various attributes. It is drawing which shows the example at the time of describing the script which is content data by HTML. It is drawing which shows the example at the time of describing the script which is content data in the form based on MMS SMIL. It is drawing which shows the example of a screen transition at the time of reproducing | regenerating content data based on the script of FIG. It is a graph which shows the other example which shows the scroll speed in scroll reproduction, specifically, a change of y (t) and dy (t) / dt. It is a flowchart explaining the flow which sets the link information for skipping the element data which cannot be reproduced | regenerated. It is drawing which shows an example of the data structure in the case of handling link information. It is the figure which showed typically the positional relationship with the reproduction | regeneration area | region of content data at the time of replacing the element data which cannot be reproduced | regenerated with the alternative message. It is drawing which shows the other example of a script description. It is drawing which shows the other example of a script description.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Communication part 12 Control part 13 Storage part 14 Input / output part 100 Information display apparatus 101 Operation reception part 102 Movement speed instruction part 103 Output part instruction part 104 Output data instruction part 105 Output control part 106 Output data reading part 107 Output setting information storage Unit 108 output unit 109 data temporary storage unit 110 data storage unit 112 external network 130 data acquisition unit 131 element data scaling determination unit 132 scaling processing unit (magnification unit)
133 Scroll operation control unit (reproduction control means, scroll reproduction means)
136 Data holding part 141 Operation part (input means)
142 Display unit 143 Audio output unit 151 Scroll bar control unit (scroll bar display means)
152 Playback control data structure management unit (detection means)
153 Output element data determination unit 154 Content data analysis unit (detection means, addition means)
155 Content Data Playback Control Unit 171 Movie Playback Control Unit (Movie Playback Unit)

Claims (22)

Scroll playback means for scrolling playback of content data in which a plurality of element data is arranged in a playback area from a playback start point of the content data toward a playback end point;
Detecting means for detecting the degree of fit of the display area of the element data that changes due to the scroll reproduction with respect to the reproduction area;
An information display device comprising: a reproduction control means for controlling the scroll reproduction means so as to make the scroll speed variable according to the degree of fit.   The reproduction control means controls the scroll reproduction means so as to stop the scroll reproduction when the detection means detects that the display area of the element data is completely within the reproduction area. The information display device according to claim 1. The content data includes video data,
Video playback means for playing back the video data within the playback area;
The reproduction control means controls the scroll reproduction means to stop the scroll reproduction when the detection means detects that the display area of the moving image data is within the reproduction area, and the reproduction control means 2. The information display device according to claim 1, wherein the moving image reproducing means is controlled so as to perform reproduction.   The reproduction control means controls the scroll speed for scroll reproduction until the specific element data display area is scrolled out from the state where the display area of the specific element data is within the reproduction area and / or the display area of the specific element data is Control that the display area of the specific element data is faster than the scroll speed when the display area of the specific element data is not displayed in the playback area after the scroll-in to the playback area. The information display device according to claim 1, characterized in that:   The reproduction control means controls the scroll reproduction means so as to change the scroll speed in accordance with the format of the element data, or to change the scroll speed for each element data included in the content data. The information display device according to claim 1, wherein the information display device is provided.   2. The information display device according to claim 1, further comprising a scaling unit that obtains the size of the display area of the element data and changes the display area of the element data so as to be within the reproduction area. .   When the scaling unit determines that the length of the element data display area in the orthogonal direction orthogonal to the direction of scroll reproduction does not fit in the reproduction area, the scaling means determines the length of the element data display area in the orthogonal direction. 7. The information display apparatus according to claim 6, wherein the information is scaled so as to be within the reproduction area. A scroll bar indicating the entire playback period from the playback start point to the playback end point of the content data;
Scroll bar display means for displaying the position displayed in the scroll bar and the scroll bar / slider indicating the position of the content data in the entire reproduction period of the portion displayed in the playback area. The information display device according to claim 1, wherein:   9. The information according to claim 8, wherein the scroll bar display means displays the scroll bar as a whole of the scroll bar for the time required to reproduce the content data including the display time of the element data. Display device.   9. The scroll bar display means for displaying the scroll bar so that the moving speed of the scroll bar / slider becomes a constant speed during the scroll reproduction of the content data. Information display device.   9. The information display device according to claim 8, wherein the scroll bar display means displays the scroll bar so that the reproduction period of the element data currently being reproduced can be identified.   When the content data includes inclusion content data in which element data is arranged, the scroll bar display means is required for reproduction of the content data including the time required for reproduction of each element data included in the inclusion content data. 10. The information display device according to claim 9, wherein the scroll bar is displayed for the time as a whole of the scroll bar. An input means for receiving input from the user;
2. The information display apparatus according to claim 1, wherein the reproduction control unit controls the scroll reproduction unit and / or the moving image reproduction unit based on input information received by the input unit. An input means for receiving input from the user;
2. The reproduction control means according to claim 1, wherein when the input means receives a scroll command from the user during reproduction of the moving image data, the reproduction control means continues to reproduce the moving image data and performs scroll reproduction. Information display device. In the content data, link information about the start point and the end point arranged at an arbitrary position on the content data is added,
The playback control means plays back the element data next to the end point placed on the content data as soon as the start point placed on the content data reaches the playback area during scroll playback of the content data. 2. An information display apparatus according to claim 1, wherein the scroll reproduction means is controlled so as to reproduce the area.   16. The information display device according to claim 15, wherein the link information is included in the content data in advance.   16. The information display device according to claim 15, further comprising adding means for adding the link information to the content data.   16. The reproduction control means can switch between a link transition state in which content data displayed in the reproduction area is transitioned from the start point to an end point and a link non-transition state in which no transition is performed. The information display device described. An information display method in an information display device comprising scroll reproduction means for scrolling and reproducing content data in which a plurality of element data is arranged in a reproduction area from a reproduction start point of the content data toward a reproduction end point,
A detection step of detecting the degree of fit of the display area of the element data that changes due to the scroll reproduction with respect to the reproduction area;
And a reproduction control step of controlling the scroll reproduction means so as to make the scroll speed variable according to the degree of fit.   The reproduction control step controls the scroll reproduction means to stop scroll reproduction when the detection means detects that the element data display area is completely within the reproduction area. The information display method according to claim 19.   An information display program for an information display device for operating the information display device according to any one of claims 1 to 18, wherein the information display program for causing the computer to function as each of the above-described means.   A computer-readable recording medium on which the information display program of the information display device according to claim 21 is recorded.

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