JP2010160441A - Information processing apparatus, display processing method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology that improves efficiency of memory used amount for lookahead and allows comfortable transition of a screen even just after the transition of the display screen is stopped. <P>SOLUTION: This information processing apparatus includes a temporary storing means for temporarily storing data read from a storing means, a display controlling means for creating a display screen and displaying it on a display unit based on the data temporarily stored in the temporary storing means, a detecting means for detecting input of operation of commanding the transition of the display screen, a determining means for determining the state before stop showing the state just before the input of the operation of commanding the transition of the display screen based on the detected result by the detecting means, and a temporary storage controlling means for performing reading control of the data based on the detected result by the detecting means and determined result by the determining means from the storing means to the temporary storing means. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information processing apparatus that performs prefetching of data, a display processing method, and a program.

  Devices that incorporate a hard disk drive or the like to store a large amount of content are known. Such a device has, for example, a function of browsing accumulated content. In these devices, generally, when a content browse screen is generated, the content is sequentially read to generate a screen. However, this method alone requires time for screen generation as the number of contents increases. For this reason, a waiting time until the screen is displayed occurs, so that user operations cannot be performed comfortably.

Therefore, various techniques for prefetching content have been proposed. For example, a technique for prefetching scroll direction data during a scroll operation is known (see Patent Document 1). Further, a technique for prefetching data necessary for each operation (for example, continuous input of enlargement / reduction and scroll operation) is known (see Patent Document 2).
JP 2006-343846 A JP 2001-249653 A

  In the prefetching process described above, the same continuous operation can be recognized, and data can be prefetched in a single direction based on the recognition, but only prefetching of data in one direction is considered. Also, look ahead only when stopped. For this reason, when a screen transition is instructed immediately after stopping scrolling, prefetching is not in time, and it takes time until the screen is displayed. In order to cope with this, it is conceivable to pre-read all data, but a large-capacity memory is required, which is difficult to realize with an embedded device such as a digital camera.

  The present invention has been made in view of the above-described problems. Even immediately after the transition of the display screen is stopped, the memory usage for prefetching is improved and the transition of the screen can be performed comfortably. The purpose is to provide the technology.

  In order to achieve the above object, an information processing apparatus according to an aspect of the present invention includes a temporary storage unit that temporarily stores data read from a storage unit, and data temporarily stored in the temporary storage unit. Display control means for generating a display screen on the basis of the display screen and displaying the display screen on a display; detection means for detecting an input of an operation for instructing transition of the display screen; transition of the display screen based on a detection result by the detection means Determining means for determining a pre-stop state indicating immediately before the input of an operation for instructing is stopped, and data based on the detection result by the detecting means and the determination result by the determining means from the storage means to the temporary storage means And temporary storage control means for performing control to read out data.

  Another embodiment of the present invention is a display processing method for an information processing device, which generates a display screen based on data stored in a temporary storage unit that temporarily stores data read from a storage unit. A display control step for displaying on the display, a detection step for detecting an operation input for instructing the transition of the display screen, and an input for an operation for instructing the transition of the display screen based on a detection result in the detection step Control for reading out data from the storage means to the temporary storage means based on a determination step for determining a pre-stop state indicating just before the stop, and a detection result in the detection step and a determination result in the determination step And a temporary storage control step to be performed.

  According to another aspect of the present invention, a program generates a display screen based on data stored in a temporary storage unit that temporarily stores data read from the storage unit, and displays the display screen on a display. Display control means, detection means for detecting an input of an operation for instructing the transition of the display screen, pre-stop indicating immediately before an input of an operation for instructing the transition of the display screen is stopped based on a detection result by the detection means A determination unit that determines a state; and a temporary storage control unit that performs control for reading data from the storage unit to the temporary storage unit based on a detection result of the detection unit and a determination result of the determination unit.

  According to the present invention, the efficiency of memory usage for prefetching is improved even immediately after the transition of the display screen is stopped. In addition, immediately after the transition of the display screen is stopped, the data can be read at high speed, so that the transition of the screen can be performed comfortably.

  Hereinafter, an information processing apparatus, a display processing method, and a program according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a diagram illustrating an example of a functional configuration of an information processing system according to an embodiment of the present invention.

  The information processing system includes the components indicated by reference numerals 101 to 110.

  Reference numeral 101 denotes a storage unit, which includes, for example, a hard disk drive. The storage unit 101 stores digital data including a wide range of sentences (text), music, images, videos, and the like. Reference numeral 103 denotes an operation input unit, which includes, for example, a touch panel. The operation input unit 103 generates an operation input signal based on a user operation. Reference numeral 110 denotes a display unit, which is a display that displays various screens.

  Reference numeral 102 denotes an information processing apparatus that searches, for example, data stored in the storage unit 101 and displays the result on the display unit 110. Thereby, the user can browse various data. In the present embodiment, data is searched in units of years, months, days, etc. based on the shooting date / time of the data.

  The information processing apparatus 102 includes the components indicated by reference numerals 104 to 109.

  An operation input detection unit 104 detects an input of an operation for instructing a display screen transition (hereinafter, abbreviated as a transition instruction operation) based on an operation input signal from the operation input unit 103. Examples of the transition instruction operation include operations such as scrolling.

  Reference numeral 105 denotes a transition stop determination unit that determines immediately before the input of the transition instruction operation stops based on the detection result by the operation input detection unit 104. If the user is performing a scroll operation, the transition stop determination unit 105 determines that the input of the transition instruction operation is just before stopping when the scroll speed is reduced. Hereinafter, the operation state at the time point when it is determined by the pre-transition stop determination unit 105 that the input of the transition instruction operation is just before the stop is referred to as a pre-stop state, and the operation state when it is not is referred to as a pre-stop undetected state.

  Reference numeral 106 denotes a priority setting unit that sets priorities for the data stored in the storage unit 101 based on the detection result of the operation input detection unit 104 and the determination result of the pre-transition stop determination unit 105. Note that data set with a high priority is more likely to be read into the temporary storage unit 107.

  Reference numeral 107 denotes a temporary storage unit, for example, a so-called cache configured by a RAM (Random Access Memory) or the like. Data reading / writing to the temporary storage unit 107 can be performed at a higher speed than data reading / writing to the storage unit 101. Temporary storage unit 107 temporarily stores data in association with conditions including grouping conditions and data shooting date and time.

  Reference numeral 108 denotes a temporary storage control unit that performs control to read data from the storage unit 101 to the temporary storage unit 107. This read control is performed based on the priority set by the priority setting unit 106.

  A display control unit 109 generates a display screen and outputs the generated display screen to the display unit 110. The display control unit 109 generates a display screen based on the data stored in the temporary storage unit 107.

  The above is the description of an example of the functional configuration in the information processing system. Note that the functional configuration provided in these information processing systems is not necessarily realized as shown in the drawing, and it is sufficient that all or part of them are realized in any device in the system. For example, in the case of FIG. 1, the storage unit 101, the operation input unit 103, and the display unit 110 are provided outside the information processing apparatus 102, but these configurations may be provided inside the information processing apparatus 102. Good.

  FIG. 2 is a diagram showing an example of a screen displayed on the display unit 110 shown in FIG. In the present embodiment, a case where data to be displayed is hierarchical data is taken as an example. In the hierarchized data according to the present embodiment, each data is grouped by period according to the shooting date and time, and each data is divided into a year unit, a month unit, and a day unit group. Yearly data is higher, and monthly and daily data are stratified in order.

  201 is an example of a group display screen. In this case, the data is grouped on a monthly basis. Reference numeral 202 denotes a group display area in which a group of data whose shooting date and time is May 2003 is displayed. A group thumbnail display area 203 displays thumbnails of data randomly selected from the June 2003 group. An attribute display area 204 displays the attributes of each group.

  211 is an example of a group display screen. In this case, the data is grouped on a daily basis. Reference numeral 212 denotes a group display area in which a group of data whose shooting date and time is May 31, 2003 is displayed. Reference numeral 213 denotes a group thumbnail display area in which thumbnails of data randomly selected from the group of May 31, 2003 are displayed. Reference numeral 214 denotes an attribute display area in which attributes of each group are displayed. Note that the display screen 201 and the display screen 211 are merely examples, and are not limited thereto.

  Here, operations on the screen displayed on the display unit 110 will be described. In the present embodiment, various user operations are input through the touch panel. The operation types include “return operation”, “scroll operation”, “selection operation”, and “end operation”.

  First, the “return operation” will be described with reference to FIG. Reference numerals 205 and 215 denote buttons for instructing a “return operation”. When the user single taps this button, a higher group than the group selected (ie, displayed in the center) is displayed. For example, on the group display screen 211 grouped by day, when the return button 215 is single-tapped, the screen 201 grouped by month is displayed. Here, the single tap means an operation of hitting the screen once with a finger.

  Next, the “scroll operation” and the “selection operation” will be described with reference to FIG.

  The “scroll operation” is an operation for instructing the transition of the display screen by scrolling the data displayed on the display screen in a predetermined direction (in this embodiment, left and right, but may be up and down or diagonal). It is. Specifically, as shown in FIG. 3A, when the user slides his / her finger to the left on the screen, the entire displayed group is shifted (scrolled) to the left, and a new group appears from the right. Similarly, when the user slides his / her finger to the right, the entire displayed group shifts (scrolls) to the right, and a new group appears from the left. The scroll speed also changes in proportion to the speed at which the finger slides.

  Also, as shown in FIG. 3B, when the user double taps the group display area, a “selection operation” is performed. When the “selection operation” is performed, a lower group than the selected group is displayed. For example, on the group display screen 201 grouped by month, when the group display area of the group for June 2003 is double-tapped, the group display screen 211 grouped by day is displayed. Here, the double tap means an operation of tapping the screen twice with a finger within a predetermined time.

  FIG. 4 is a diagram illustrating an example of a data configuration in the temporary storage unit 107 illustrated in FIG. Here, attributes of each group are shown, and data necessary for displaying each group will be described.

  Reference numeral 401 denotes a data configuration in the temporary storage unit 107 when the initial screen is displayed. Assume that the initial screen is a screen that displays data grouped by year. Furthermore, it is assumed that the initial screen is a screen that displays mainly the groups with old shooting dates.

  In 402, data is stored in units of years. This is because scrolling is done on a yearly basis. 403 stores data of a group (monthly data group in 1998) corresponding to a lower level of the 1998 group (data group photographed in 1998). 403 stores data of a group (monthly data group in 1998) corresponding to a lower level of the 1998 group (data group photographed in 1998). 404 stores data of a group (monthly data group in 1999) corresponding to a lower level of the 1999 group (data group photographed in 1999). Reference numeral 405 stores data of a group (a data group on a monthly basis in 2000) that is lower than a 2000 group (a data group captured in 2000).

  Reference numeral 411 denotes a data configuration in the temporary storage unit 107 when the group display screen 201 is displayed on the display unit 110 and the operation state at that time is in an undetected state before stopping. As indicated by 412, data is stored on a monthly basis. This is because scrolling is performed on a monthly basis. In the non-detected state before the stop, scrolling data (data of the same hierarchy) is stored in the temporary storage unit 107.

  Reference numeral 421 denotes a data configuration in the temporary storage unit 107 when the group display screen 201 is displayed on the display unit 110 and the operation state at that time is in the pre-stop state. Reference numeral 422 denotes year-by-year data corresponding to an upper group of the monthly data. Reference numeral 423 denotes monthly data used for displaying the group display screen 201. Reference numeral 424 denotes daily data belonging to a lower group of the April 2003 group. Reference numeral 425 denotes daily data belonging to a lower group of the May 2003 group. Reference numeral 426 denotes daily data belonging to a subgroup of the June 2003 group. As described above, when it is determined that the transition of the display screen is just before stopping, the temporary storage unit 107 reduces the ratio of the scroll data (data in the same layer) and the screen switching data (data in other layers). ) Increase. The data in the temporary storage unit 107 is changed (deleted, added, etc.) by an operation such as scrolling or grouping change.

  Here, an example of the operation of the information processing apparatus 102 illustrated in FIG. 1 will be described with reference to FIGS. 5 and 6.

  FIG. 5 is a flowchart illustrating an example of a flow of activation processing in the information processing apparatus 102 illustrated in FIG.

  First, the information processing apparatus 102 starts a temporary storage control processing thread (S101). That is, data is read from the storage unit 101 to the temporary storage unit 107. In the display control unit 109, the information processing apparatus 102 reads data from the temporary storage unit 107, generates an initial screen from the read data, and outputs the initial screen to the display unit 110 (S102).

  After the screen display, the information processing apparatus 102 waits for detection of an operation input signal from the operation input unit 103 in the operation input detection unit 104 (NO in S103 to S106). Specifically, it waits until any of “selection operation”, “return operation”, “scroll operation”, and “end operation” is input by the user.

  If a “selection operation” is detected (YES in S103), the information processing apparatus 102 causes the display control unit 109 to temporarily store data belonging to a group that is a lower group of the group selected by the “selection operation”. Read from 107 (S107).

  When the “return operation” is detected (YES in S104), the information processing apparatus 102 causes the display control unit 109 to temporarily store data belonging to a group that is higher than the selected group (ie, displayed in the center). Read from 107 (S108). When the “scroll operation” is detected (YES in S105), the information processing apparatus 102 causes the display control unit 109 to transfer data belonging to the group in the position corresponding to the scroll direction on the display screen from the temporary storage unit 107. Read (S109).

  After the processing of S107 to S109, the information processing apparatus 102 generates a display screen based on the data read from the temporary storage unit 107 in the display control unit 109, and outputs the generated display screen to the display unit 110 ( S110). Thereafter, the process returns to S103 again.

  If “end operation” is detected (YES in S106), this process ends. When the “end operation” is not detected (NO in S106), the process returns to S103 again. Note that when the data to be read does not exist in the temporary storage unit 107 in the processes in S107, S108, and S109, for example, a blank is temporarily displayed on the display screen. Further, for example, data is read from the storage unit 101, and the read data is displayed.

  FIG. 6 is a flowchart showing an example of the flow of the temporary storage control process in the information processing apparatus 102 shown in FIG.

  When this process starts, the information processing apparatus 102 reads the initial screen data from the storage unit 101 to the temporary storage unit 107 in the temporary storage control unit 108 (S201). Thereafter, the information processing apparatus 102 waits for an operation input signal from the operation input unit 103 to be detected in the operation input detection unit 104 (NO in S202 to S206). Specifically, it waits until any of “selection operation”, “return operation”, “scroll operation”, and “end operation” is input by the user.

  Here, when the “selection operation” is detected (YES in S202), the information processing apparatus 102 uses the priority setting unit 106 to set the priority of data belonging to the lower group of the group selected by the “selection operation”. increase. At this time, the priority setting unit 106 also increases the priority of data having a predetermined relationship with the lower group (S207). The data having a predetermined relevance here refers to data located within a predetermined range from the displayed data on the display screen when data belonging to the lower group is displayed. For example, when data from June 1 to 30, 2003 is displayed as the data belonging to the lower group, the data having a predetermined relevance is May 31, 2003 or July 1, 2003. Data such as days are listed.

  When the “return operation” is detected (YES in S203), the information processing apparatus 102 belongs to the upper group of the selected group (in this case, the group displayed in the center of the screen) in the priority setting unit 106. Increase data priority. At this time, the priority setting unit 106 also increases the priority of data having a predetermined relationship with the upper group (S208). The data having a predetermined relationship with the upper group is the same as described above, and when data belonging to the upper group is displayed, it indicates data located within a predetermined range from the displayed data on the display screen. .

  When the “scroll operation” is detected (YES in S204), the information processing apparatus 102 determines in the pre-transition stop determination unit 105 immediately before the transition of the display screen stops. As described above, this process is performed by determining a decrease in scroll speed with respect to the scroll direction (transition direction). Note that the reduction in scroll speed is detected from the speed at which the finger slides on the screen.

  Here, when the deceleration of the scroll speed is detected (YES in S209), the information processing apparatus 102 changes the priority of each data in the priority setting unit 106 according to the method described in FIG. That is, the priority of the data belonging to the upper group and the lower group of the displayed group is raised, and the priority of the data having a predetermined relationship with the upper group and the lower group is raised (S211). The data having a predetermined relationship with the upper group and the lower group is the same as described above. When data belonging to the upper group and the lower group is displayed, it is within a predetermined range from the displayed data on the display screen. Points to the data located at.

  In addition, when the scroll speed reduction is not detected (NO in S209), the information processing apparatus 102 uses the priority setting unit 106 to set the priority of data belonging to the group in the position corresponding to the scroll direction on the display screen. (S210). Increasing the priority of data means performing a process such as increasing the priority relative to other data or changing the priority to a predetermined value.

  After the processing described above, when the information processing apparatus 102 detects a priority change (YES in S205), the temporary storage control unit 108 reads data from the storage unit 101 based on the priority, and the temporary storage unit 107 (S212). If an “end operation” is detected (YES in S206), the process ends. If “end operation” is not detected (NO in S206), the process returns to S202 again.

  As described above, according to the first embodiment, it is determined immediately before the transition of the display screen stops, and the data to be cached in the temporary storage unit 107 is changed. That is, only data necessary for displaying a screen that may change in the state before stopping is prefetched. Thereby, even immediately after the transition of the display screen is stopped, the memory usage efficiency for prefetching is improved. In addition, since data can be read at high speed, the transition of the screen can be performed comfortably.

(Embodiment 2)
Next, Embodiment 2 will be described. Note that the system configuration according to the second embodiment is the same as that in FIG. 1 describing the first embodiment, and thus the description thereof is omitted. Here, differences from the first embodiment will be mainly described.

  FIG. 7 is a diagram illustrating an example of a screen displayed on the display unit 110 according to the second embodiment.

  Reference numeral 701 denotes a preview screen. In the preview screen 701, data is arranged from the left side to the right side in order of the shooting date and time.

  Reference numeral 702 denotes a focus thumbnail display area, which is an area in which a selected thumbnail, that is, a focused thumbnail is displayed. Each operation is performed on the focused thumbnail. Reference numeral 703 denotes a thumbnail display area where thumbnails are displayed. Reference numeral 704 denotes an indicator indicating where the focused thumbnail is located with respect to the entire data.

  Reference numeral 711 denotes a full screen display screen, which displays data using the entire screen. Reference numeral 712 denotes a full screen data display area in which full screen data is displayed. Note that the display screen 701 and the display screen 711 are merely examples, and are not limited thereto.

  FIG. 8 is a diagram illustrating an example of the appearance of the operation input unit 103 according to the second embodiment. In the second embodiment, the operation input unit 103 is constituted by a device having a dial, not a touch panel.

  Here, reference numeral 801 denotes an operation input device. Reference numeral 802 denotes a dial. The user operates the dial 802 to instruct a “jump operation” (only usable on the preview screen 701). The dial 802 can be turned, for example, in three steps on the left and right, and when the operation is finished, the dial 802 is rotated and automatically returns to the original state. Here, the “jump operation” displays the data displayed on the display screen by skipping one or more units in a predetermined direction (in this embodiment, left and right, but may be up and down or diagonal). This is an operation for instructing screen transition. For example, when the dial 802 is turned to the right on the preview screen 701, the entire displayed thumbnail is shifted (scrolled) to the right, and thumbnails of data with old shooting date and time appear from the left. In accordance with the inclination of the dial at this time, the degree of transition of the display screen, that is, the jump distance (transition in units of 1 sheet, 10 sheets, or 100 sheets) changes.

  Reference numeral 803 denotes a determination button, and the user instructs “selection operation (determination)” by pressing the determination button 803 (only usable on the preview screen 701). For example, when a “selection operation” is performed on the preview screen 701, the screen transitions to the full screen display screen 711. That is, the focused thumbnail 702 is displayed over the entire screen.

  Reference numeral 804 denotes a return button. The user presses the return button 804 to instruct a “return operation” (only usable on the full screen display screen 711). For example, when a “return operation” is performed on the full screen display screen 711, the screen transitions to the preview screen 701. That is, when the user presses the return button 804, a thumbnail of data displayed on the entire screen is displayed in the center, and a preview screen 701 is displayed in which thumbnails of data related to the data are arranged on the left and right.

  FIG. 9 is a diagram illustrating an example of a data configuration in the temporary storage unit 107 according to the second embodiment. Here, the data that comes first when arranged in the sort order is indicated as “1”, and the data that comes next is indicated as “2”. An integer “N” indicates thumbnail data of the Nth data, and “full screen display data N” indicates a full screen display of the Nth data. The data is shown.

  Reference numeral 901 denotes a data configuration in the temporary storage unit 107 when the initial screen is displayed. Here, the initial screen is the preview screen 701 described with reference to FIG. 7, and it is assumed that the thumbnail of the first data in the sort order is displayed in the focus thumbnail display area 702.

  Reference numeral 902 denotes jump data for each sheet. Reference numeral 903 denotes jump data in units of 10 sheets. Reference numeral 904 denotes jump data in units of 100 sheets. That is, data is stored in the temporary storage unit 107 so that it can cope with any “jump operation” of 1, 10, or 100 sheets.

  Reference numeral 905 denotes full-screen display data. Thus, when displaying the preview screen 701, each jump data and full screen display data are stored in the temporary storage unit 107, respectively.

  Reference numeral 911 denotes a data structure in the temporary storage unit 107 when the preview screen 701 is displayed on the display unit 110 and the operation state at that time is an undetected state before the stop. 912 is jump data for each sheet, 913 is jump data for 10 sheets, and 914 is jump data for 100 sheets. In the non-detected state before the stop, jump data is stored in the temporary storage unit 107.

  Reference numeral 921 denotes a data structure in the temporary storage unit 107 when the preview screen 701 is displayed on the display unit 110 and the operation state at that time is in the pre-stop state. 922 is jump data for one sheet, 923 is jump data for 10 sheets, and 924 is jump data for 100 sheets. Reference numeral 925 denotes full-screen display data. As described above, the temporary storage unit 107 stores the ratio of the jump data and the full-screen display data changed according to the pre-stop state and the non-pre-detected state. Note that the data in the temporary storage unit 107 is changed (deleted, added, etc.) by an operation such as a “jump operation”.

  Next, an example of the operation in the information processing apparatus 102 according to the second embodiment will be described with reference to FIGS. 10 and 11.

  FIG. 10 is a flowchart illustrating an example of a flow of activation processing in the information processing apparatus 102 according to the second embodiment.

  First, the information processing apparatus 102 starts a temporary storage control processing thread (S301). That is, data is read from the storage unit 101 to the temporary storage unit 107. In the display control unit 109, the information processing apparatus 102 reads data from the temporary storage unit 107, generates an initial screen (in this case, a preview screen 701) from the read data, and outputs the initial screen to the display unit 110 (S302). .

  After the screen display, the information processing apparatus 102 waits for detection of an operation input signal from the operation input unit 103 in the operation input detection unit 104 (NO in S303 to S306). Specifically, it waits until any of “selection operation”, “return operation”, “jump operation”, and “end operation” is input by the user.

  If a “selection operation” is detected (YES in S303), the information processing apparatus 102 causes the display control unit 109 to temporarily display the data for full-screen display of the data selected by the “selection operation” 107. (S307).

  When the “return operation” is detected (YES in S304), the information processing apparatus 102 causes the display control unit 109 to read the thumbnail data of the data displayed on the full screen display screen 711 from the temporary storage unit 107 (S308). ).

  When a “jump operation” is detected (YES in S305), the information processing apparatus 102 causes the display control unit 109 to temporarily store data at a position corresponding to the jump direction and the jump distance on the display screen. (S309).

  After the processing of S307 to S309, the information processing apparatus 102 generates a display screen based on the data read from the temporary storage unit 107 in the display control unit 109, and outputs the generated display screen to the display unit 110 ( S310). Thereafter, the process returns to S303 again.

  If “end operation” is detected (YES in S306), the process ends. When the “end operation” is not detected (NO in S306), the process returns to S303 again. Note that when the data to be read does not exist in the temporary storage unit 107 in the processes in S307, S308, and S309, for example, a blank is temporarily displayed on the display screen. Further, for example, data is read from the storage unit 101, and the read data is displayed.

  FIG. 11 is a flowchart illustrating an example of a flow of temporary storage control processing in the information processing apparatus 102 according to the second embodiment.

  When this processing starts, the information processing apparatus 102 reads the initial screen data from the storage unit 101 to the temporary storage unit 107 in the temporary storage control unit 108 (S401). Thereafter, in the operation input detection unit 104, the information processing apparatus 102 waits for detection of an operation input signal from the operation input unit 103 (NO in S402 to S406). Specifically, it waits until any of “selection operation”, “return operation”, “jump operation”, and “end operation” is input by the user.

  If a “selection operation” is detected (YES in S402), the information processing apparatus 102 sets the priority of the data for full-screen display of the data selected by the “selection operation” in the priority setting unit 106. increase. At this time, the priority setting unit 106 also increases the priority of the data for full-screen display of the data having a predetermined relationship with the selected data (S407). The data having a predetermined relationship here refers to data located within a predetermined range from the displayed data on the display screen when the data is displayed. For example, when data with a shooting date of June 1, 2003 is displayed, data having a predetermined relationship may be data with a shooting date of May 31, 2003, June 2, 2003, or the like. Is mentioned.

  When the “return operation” is detected (YES in S403), the information processing apparatus 102 uses the priority setting unit 106 to prioritize the thumbnail data of the currently selected group (in this case, the group displayed in the center of the screen). Raise the degree. At this time, the priority setting unit 106 also increases the priority of thumbnail data of data having a predetermined relationship with the currently selected data (S408). The data having a predetermined relevance here is the same as described above, and indicates data located within a predetermined range from the displayed data on the display screen when the data is displayed.

  When the “jump operation” is detected (YES in S404), the information processing apparatus 102 determines in the pre-transition stop determination unit 105 immediately before the transition of the display screen stops. In the second embodiment, it is performed by determining a decrease in jump distance with respect to the jump direction (transition direction). Note that the decrease in jump distance is detected from the degree of inclination of the dial 802 or the like.

  If a decrease in jump distance is detected (YES in S409), the priority setting unit 106 changes the priority of each data according to the method described with reference to FIG. That is, the priority of the full-screen display data and thumbnail data of the data being displayed is increased, and the priority of the full-screen display data and thumbnail data of data having a predetermined relationship with the displayed data is also increased ( S411). The data having a predetermined relevance here is the same as described above, and indicates data located within a predetermined range from the displayed data on the display screen when the data is displayed.

  If no decrease in the jump distance is detected (NO in S409), the information processing apparatus 102 causes the priority setting unit 106 to set the priority of the thumbnail data of the data at the position corresponding to the jump direction on the display screen. (S410). Increasing the priority of data means performing a process such as increasing the priority relative to other data or changing the priority to a predetermined value.

  After the above-described processing, when the information processing apparatus 102 detects a priority change (YES in S405), the temporary storage control unit 108 reads data from the storage unit 101 based on the priority, and the temporary storage unit 107. (S412). If an “end operation” is detected (YES in S406), this process ends. If “end operation” is not detected (NO in S406), the process returns to S402 again.

  As described above, according to the second embodiment, even when the “jump operation” is performed, as in the first embodiment described above, the amount of memory used for prefetching is immediately after the transition of the display screen is stopped. The screen efficiency can be improved and the screen transition can be performed comfortably.

(Embodiment 3)
Next, Embodiment 3 will be described. In the third embodiment, a case will be described in which it is determined immediately before the transition of the display screen stops by detecting the reversal of the scroll direction. This is because, in general, when the user stops the scroll operation, the scroll direction is often reversed in order to keep the desired data at the optimum display position.

  Note that the system configuration according to the third embodiment is the same as that in FIG. 1 describing the first embodiment, and thus the description thereof is omitted. Here, differences from the first embodiment will be mainly described. In the third embodiment, data to be displayed is hierarchical data. Here, in order to simplify the description, a case where the same data as in the first embodiment is used will be described as an example.

  FIG. 12 is a diagram illustrating an example of the appearance of the operation input unit 103 according to the third embodiment. In the third embodiment, the operation input unit 103 is configured not by a touch panel but by a device having a button.

  Reference numeral 1201 denotes an operation input device. Reference numeral 1202 denotes a left button. The user presses the left button 1202 to instruct a “scroll operation” in the left direction. For example, when the left button 1202 is pressed once, the entire displayed group is shifted (scrolled) to the right, and a new group appears from the left.

  Reference numeral 1203 denotes a right button, and the user instructs a “scroll operation” in the right direction by pressing the right button 1203. For example, when the right button 1203 is pressed once, the entire displayed group is shifted (scrolled) to the left, and a new group appears from the right.

  Reference numeral 1204 denotes a determination button, and the user instructs a “selection operation” by pressing the determination button 1204. When the enter button 1204 is pressed, the screen transitions to a group display screen 201 that displays a group that is lower than the group that is selected (ie, displayed in the center). For example, when the determination button 1204 is pressed on the group display screen 201 grouped by month, the group display screen 211 grouped by day is displayed.

  Reference numeral 1205 denotes a return button, and the user instructs a “return operation” by pressing the return button 1205. When the return button 1205 is pressed, the screen transitions to a group display screen 201 that displays a group that is higher than the group that is selected (ie, displayed in the center). For example, when the return button 1205 is pressed on the group display screen 211 grouped by day, the group display screen 201 grouped by month is displayed.

  Next, an example of operation in the information processing apparatus 102 according to the third embodiment will be described. In addition, since the starting process concerning Embodiment 3 is the same as that of FIG. 5 which demonstrated Embodiment 1, the description is abbreviate | omitted.

  FIG. 13 is a flowchart illustrating an example of the flow of temporary storage control processing in the information processing apparatus 102 according to the third embodiment. Here, only the processing (S504, S509 to S511) relating to the “scroll operation” that is different from FIG. 6 describing the first embodiment will be described.

  Here, when the “scroll operation” is detected (YES in S504), the information processing apparatus 102 determines in the pre-transition stop determination unit 105 immediately before the transition of the display screen stops. In the third embodiment, it is performed by determining the reversal of the scroll direction (transition direction). That is, in the first embodiment, the deceleration of the scroll speed is determined, but in the third embodiment, the reversal of the scroll direction is determined. The reversal of the scroll direction may be detected, for example, by storing the previous operation and comparing the stored operation with the input operation. That is, when the right button 1203 is pressed and the previous operation is the left button 1202, the reversal of the scroll direction is detected.

  When the reversal of the scroll direction is detected (YES in S509), the priority setting unit 106 increases the priority of the data belonging to the upper group and the lower group of the displayed group. At this time, the priority of data having a predetermined relationship with the upper group and the lower group is also increased (S511). The data having a predetermined relationship with the upper group and the lower group is the same as in the first embodiment, and when data belonging to the upper group and the lower group is displayed, a predetermined number of data is displayed from the displayed data in the display screen. Refers to data located within a range.

  Further, when the reversal of the scroll direction is not detected (NO in S509), the information processing apparatus 102 causes the priority setting unit 106 to set the priority of the data belonging to the group at the position corresponding to the scroll direction on the display screen. (S510). Increasing the priority of data means performing a process such as increasing the priority relative to other data or changing the priority to a predetermined value.

  As described above, according to the third embodiment, it is determined immediately before the transition of the display screen stops by detecting the reversal of the scroll direction. Also in this case, as in the first embodiment described above, immediately after the transition of the display screen is stopped, the efficiency of memory usage for prefetching can be increased and the transition of the screen can be performed comfortably.

  In the case of the “jump operation” described in the second embodiment, the same processing as described above may be performed when the reversal of the direction is detected.

(Embodiment 4)
Next, Embodiment 4 will be described. Note that the system configuration according to the fourth embodiment is the same as that in FIG. 1 describing the first embodiment, and thus the description thereof is omitted. Here, differences from the first embodiment will be mainly described.

  Here, the fourth embodiment will be described using the preview screen 701 shown in FIG. 7 describing the second embodiment. Also in the preview screen 701 according to the fourth embodiment, as in the second embodiment, it is assumed that data is arranged from the left side to the right side in the order of shooting date and time.

  In the fourth embodiment, as in the first embodiment, the operation input unit 103 is realized by a touch panel. However, in the fourth embodiment, only “scroll operation” and “end operation” are instructed. Here, for example, when the user slides his / her finger to the left on the screen, the entire displayed thumbnail is shifted (scrolled) to the left, and thumbnails of old data with the shooting date and time appear from the right. Similarly, when the user slides his / her finger to the right, the entire displayed thumbnail shifts (scrolls) to the right, and thumbnails of old data with the shooting date and time appear from the left. The scroll speed also changes in proportion to the speed at which the finger slides.

  FIG. 14 is a diagram illustrating an example of a data configuration in the temporary storage unit 107 according to the fourth embodiment.

  Reference numeral 1401 denotes a data configuration in the temporary storage unit 107 when the initial screen is displayed. Here, the initial screen is the preview screen 701 described with reference to FIG. 7, and it is assumed that the thumbnail of the first data in the sort order is displayed in the focus thumbnail display area 702.

  Reference numeral 1402 denotes thumbnail data that is currently displayed. 1403 is data for right scrolling. 1404 is data for left scrolling. When the initial screen is displayed, the currently displayed thumbnail data and scroll data are stored in the temporary storage unit 107.

  Reference numeral 1411 denotes a data structure in the temporary storage unit 107 when the preview screen 701 is displayed on the display unit 110 and the operation state at that time is an undetected state before stoppage. Reference numeral 1412 denotes left scroll data. Reference numeral 1413 denotes data being displayed. Reference numeral 1414 denotes right scroll data.

  Reference numeral 1421 denotes a data structure in the temporary storage unit 107 when the preview screen 701 is displayed on the display unit 110 and the operation state at that time is in the pre-stop state. Reference numeral 1422 denotes left scroll data. Reference numeral 1423 denotes data being displayed. Reference numeral 1424 denotes right scroll data. As described above, the ratio of the right scroll data and the left scroll data is changed and stored in the temporary storage unit 107 according to the pre-stop state and the non-pre-detected state. Reference numerals 1411 and 1421 denote data structures in the temporary storage unit 107 during right scrolling. When the left scroll is in progress, the ratios of the data for right scroll and the data for left scroll are reversed in 1411 and 1421, respectively.

  Next, an example of an operation in the information processing apparatus 102 according to the fourth embodiment will be described with reference to FIGS. 15 and 16.

  FIG. 15 is a flowchart illustrating an example of a flow of activation processing in the information processing apparatus 102 according to the fourth embodiment.

  First, the information processing apparatus 102 starts a temporary storage control processing thread (S601). That is, data is read from the storage unit 101 to the temporary storage unit 107. In the display control unit 109, the information processing apparatus 102 reads data from the temporary storage unit 107, generates an initial screen from the read data, and outputs the initial screen to the display unit 110 (S602).

  After the screen display, the information processing apparatus 102 waits for the operation input signal from the operation input unit 103 to be detected by the operation input detection unit 104 (NO in S603 and NO in S604). Specifically, the process waits until either “scroll operation” or “end operation” is input by the user.

  If a scroll operation is detected (YES in S603), the information processing apparatus 102 causes the display control unit 109 to read data at a position corresponding to the scroll direction on the display screen from the temporary storage unit 107 (S605). . Thereafter, the information processing apparatus 102 generates a display screen based on the data read from the temporary storage unit 107 in the display control unit 109, and outputs the generated display screen to the display unit 110 (S606). Thereafter, the process returns to S603 again.

  If “end operation” is detected (YES in S604), this process ends. When the “end operation” is not detected (NO in S604), the process returns to S603 again. Note that when the data to be read does not exist in the temporary storage unit 107 in the process in S605, for example, a blank is temporarily displayed on the display screen. Further, for example, data is read from the storage unit 101, and the read data is displayed.

  FIG. 16 is a flowchart illustrating an example of a flow of temporary storage control processing in the information processing apparatus 102 according to the fourth embodiment.

  When this process starts, the information processing apparatus 102 reads the initial screen data from the storage unit 101 to the temporary storage unit 107 in the temporary storage control unit 108 (S701). Thereafter, the information processing apparatus 102 waits for the operation input signal from the operation input unit 103 to be detected in the operation input detection unit 104 (NO in S702 to S704). Specifically, the process waits until either “scroll operation” or “end operation” is input by the user.

  When the “scroll operation” is detected (YES in S702), the information processing apparatus 102 determines in the pre-transition stop determination unit 105 immediately before the transition of the display screen stops. In the fourth embodiment, the determination is made by determining the reduction of the scroll speed with respect to the scroll direction (transition direction). Note that the reduction in the scroll speed is detected from the speed of sliding the finger on the screen.

  Here, when the deceleration of the scroll speed is detected (YES in S705), the information processing apparatus 102 increases the priority of the data at the position corresponding to the direction opposite to the scroll direction on the display screen in the priority setting unit 106. (S707).

  In addition, when the scroll speed reduction is not detected (NO in S705), the information processing apparatus 102 causes the priority setting unit 106 to set the priority of the data at the position corresponding to the scroll direction on the display screen. (S706). Increasing the priority of data means performing a process such as increasing the priority relative to other data or changing the priority to a predetermined value. In addition to this, when increasing the priority in the reverse direction, processing such as making the priority higher than the priority of the data in the reverse direction when deceleration is not detected may be used.

  After the above-described processing, when the information processing apparatus 102 detects a priority change (YES in S703), the temporary storage control unit 108 reads data from the storage unit 101 based on the priority, and the temporary storage unit 107. (S708). If an “end operation” is detected (YES in S704), this process ends. If “end operation” is not detected (NO in S204), the process returns to S702 again.

  As described above, according to the fourth embodiment, as in the first embodiment described above, the efficiency of memory usage for prefetching can be increased and the screen transition immediately after the transition of the display screen is stopped. Can be done comfortably.

  The above is an example of a typical embodiment of the present invention, but the present invention is not limited to the embodiment described above and shown in the drawings, and can be appropriately modified and implemented without departing from the scope of the present invention. .

  It should be noted that the present invention can take the form of, for example, a system, apparatus, method, program, or recording medium. Specifically, the present invention may be applied to a system composed of a plurality of devices, or may be applied to an apparatus composed of a single device.

  Further, the present invention achieves the functions of the embodiments by supplying a software program directly or remotely to a system or apparatus, and reading and executing the supplied program code by a computer incorporated in the system or apparatus. This includes cases where In this case, the supplied program is a computer program corresponding to the flowchart shown in the drawings in the embodiment.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention. In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to an OS (Operating System), or the like.

  Examples of the computer-readable recording medium for supplying the computer program include the following. For example, floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD- R).

  As another program supply method, a browser of a client computer is used to connect to a web page on the Internet, and the computer program of the present invention is downloaded from the web page to a recording medium such as a hard disk. In this case, the downloaded program may be a compressed file including an automatic installation function. It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different web page. That is, the present invention includes a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer.

  Further, the program of the present invention may be encrypted, stored in a recording medium such as a CD-ROM, and distributed to users. In this case, a user who has cleared a predetermined condition is allowed to download key information for decryption from a web page via the Internet, execute an encrypted program using the key information, and install the program on the computer. You can also

  In addition to the functions of the above-described embodiment being realized by the computer executing the read program, the embodiment of the embodiment is implemented in cooperation with an OS or the like running on the computer based on an instruction of the program. A function may be realized. In this case, the OS or the like performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

  Furthermore, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, so that part or all of the functions of the above-described embodiments are realized. May be. In this case, after a program is written to the function expansion board or function expansion unit, the CPU (Central Processing Unit) provided in the function expansion board or function expansion unit is a part of the actual processing or based on the instructions of the program. Do everything.

It is a figure which shows an example of a functional structure of the information processing system concerning one embodiment of this invention. It is a figure which shows an example of the screen displayed on the display part 110 shown in FIG. It is a figure which shows an example of the outline | summary of the operating method in the information processing apparatus shown in FIG. It is a figure which shows an example of a data structure in the temporary memory part 107 shown in FIG. 3 is a flowchart illustrating an example of a flow of activation processing in the information processing apparatus 102 illustrated in FIG. 1. 3 is a flowchart illustrating an example of a flow of a temporary storage control process in the information processing apparatus 102 illustrated in FIG. 1. 10 is a diagram illustrating an example of a screen displayed on a display unit 110 according to Embodiment 2. FIG. 10 is a diagram illustrating an example of an appearance of an operation input unit 103 according to the second embodiment. FIG. 6 is a diagram illustrating an example of a data configuration in a temporary storage unit 107 according to the second embodiment. FIG. 10 is a flowchart illustrating an example of a flow of activation processing in the information processing apparatus 102 according to the second embodiment. 10 is a flowchart illustrating an example of a flow of a temporary storage control process in the information processing apparatus 102 according to the second embodiment. 10 is a diagram illustrating an example of an appearance of an operation input unit 103 according to Embodiment 3. FIG. 14 is a flowchart illustrating an example of a flow of temporary storage control processing in the information processing apparatus according to the third embodiment. FIG. 10 is a diagram illustrating an example of a data configuration in a temporary storage unit 107 according to the fourth embodiment. 14 is a flowchart illustrating an example of a flow of activation processing in the information processing apparatus 102 according to the fourth embodiment. 14 is a flowchart illustrating an example of a flow of temporary storage control processing in the information processing apparatus 102 according to the fourth embodiment.

DESCRIPTION OF SYMBOLS 101 Storage part 102 Information processing apparatus 103 Operation input part 104 Operation input detection part 105 Pre-transition stop determination part 106 Priority setting part 107 Temporary storage part 108 Temporary storage control part 109 Display control part 110 Display part

Claims (10)

Temporary storage means for temporarily storing data read from the storage means;
Display control means for generating a display screen based on data temporarily stored in the temporary storage means and displaying the display screen on a display;
Detecting means for detecting an input of an operation for instructing transition of the display screen;
Determination means for determining a pre-stop state indicating immediately before an input of an operation for instructing transition of the display screen is stopped based on a detection result by the detection means;
An information processing apparatus comprising: a temporary storage control unit that performs control to read data based on a detection result by the detection unit and a determination result by the determination unit from the storage unit to the temporary storage unit. The detection means includes
Scrolling the data displayed on the display screen in a predetermined direction to detect an input of a scroll operation instructing the transition of the display screen,
The determination means includes
The information processing apparatus according to claim 1, wherein when the speed of transition of the display screen instructed by the scroll operation is decelerated, it is determined that the state is before the stop. The detection means includes
Scrolling the data displayed on the display screen in a predetermined direction to detect an input of a scroll operation instructing the transition of the display screen,
The determination means includes
The information processing apparatus according to claim 1, wherein when the transition direction of the display screen instructed by the scroll operation is reversed, it is determined that the state is before the stop. The detection means includes
Detecting an input of a jump operation instructing a transition of the display screen by skipping data displayed on the display screen in one or more units in a predetermined direction;
The determination means includes
The information processing apparatus according to claim 1, wherein the state before the stop is determined when a unit for skipping data when the display screen instructed by the jump operation is decreased. The detection means includes
Detecting an input of a jump operation instructing a transition of the display screen by skipping data displayed in a predetermined direction on the display screen in one or a plurality of units;
The determination means includes
The information processing apparatus according to claim 1, wherein when the transition direction of the display screen instructed by the jump operation is reversed, it is determined that the state is before the stop. The temporary storage control means
When the operation for instructing the transition of the display screen is detected by the detection means and the determination means determines that the state is not the pre-stop state, the display is displayed in the transition direction indicated by the detected operation on the display screen. The information processing apparatus according to any one of claims 1 to 5, wherein the read control is performed with priority given to data to be processed. The temporary storage control means
When it is determined by the determination means that the state is before the stop, the data used on the display screen that can be changed from the display screen being displayed on the display unit, or the data when the data is displayed on the display screen The information processing apparatus according to any one of claims 1 to 6, wherein the read control is performed with priority given to data displayed within a predetermined range from a position where the data is displayed. The temporary storage control means
When the determination unit determines that the state is before the stop, the reading control is performed with priority given to data displayed in a direction opposite to the transition direction indicated by the detected operation on the display screen. The information processing apparatus according to any one of claims 1 to 6. A display processing method for an information processing apparatus,
A display control step of generating a display screen based on the data stored in the temporary storage means for temporarily storing the data read from the storage means and displaying the display screen on the display;
A detection step of detecting an input of an operation instructing transition of the display screen;
A determination step of determining a pre-stop state indicating immediately before an input of an operation for instructing transition of the display screen is stopped based on a detection result in the detection step;
And a temporary storage control step of performing control to read data based on the detection result in the detection step and the determination result in the determination step from the storage unit to the temporary storage unit. Computer
Display control means for generating a display screen based on the data stored in the temporary storage means for temporarily storing data read from the storage means and displaying the display screen on the display;
Detecting means for detecting an input of an operation for instructing transition of the display screen;
Determination means for determining a pre-stop state indicating immediately before an input of an operation for instructing a transition of the display screen is stopped based on a detection result by the detection means;
A program for functioning as temporary storage control means for performing control for reading data based on the detection result by the detection means and the determination result by the determination means from the storage means to the temporary storage means.

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