JP2012215929A - Content display device and content display method - Google Patents

Abstract

The present invention provides a content display device and a content display method excellent in life log browsing.
In a content display device, a life log database 101 and a priority database 102 are stored in a storage means, and a priority setting means 11 for setting a priority of an activity as a functional configuration of the control means, a life log A life log stratification unit 12, a tier identification unit 13 that identifies a designated tier, a life log acquisition unit 14 that obtains a life log to be displayed, a target tier, and a layer below it Representative extraction means 15 for extracting representative life logs from life logs belonging to the hierarchy, life log display means 16 for displaying life logs on the screen, screen operation acceptance means 17 for accepting screen operations performed by input means (not shown), It is equipped with.
[Selection] Figure 1

Description

  The present invention relates to a content display device and a content display method for displaying a life log that is a user activity record.

Various life logs are generated in the daily life of the user. Examples of the life log include diaries such as e-mails and blogs, captured images, utility costs such as electricity bills and gas bills, measured values such as the number of steps and weight, and movement history. When these life logs are accumulated, the amount of information becomes enormous, so that when the contents are confirmed later, the readability is poor and it is difficult to grasp the contents.
Thus, a technique has been proposed in which data can be browsed for each designated period by hierarchizing data according to time (see, for example, Patent Document 1).

  In Patent Literature 1, a hierarchical group is created based on the shooting date and time added to an image file, and an image file belonging to a group corresponding to a specified time axis is extracted and displayed in a display area.

JP 2007-304735 A

  However, in Patent Document 1, since the type of data to be processed is only an image file, it can be displayed in a time axis hierarchy. However, when handling various life logs as described above, the display is complicated. Become. In particular, since the frequency of occurrence varies depending on the type of life log, when data is displayed on the time axis hierarchy as in Patent Document 1, a large number of life logs with a high frequency of occurrence are displayed, and life with a low frequency of occurrence is displayed. The problem is that the log is buried and the viewability is poor.

  An object of the present invention is to provide a content display device and a content display method excellent in life log browsing.

  The content display device of the present invention is a content display device that displays a life log that is a user activity record, and a life log storage unit that stores the date and time when the user activity occurred and the type of the activity in association with each other. , A priority storage unit that associates and stores the type of activity and the priority set according to the type of activity, and the life log stored in the life log storage unit is hierarchized in units of periods A life log hierarchizing means, a hierarchy specifying means for setting the hierarchy corresponding to the period specified by the user as a target hierarchy, a life log acquiring means for acquiring a life log included in the target hierarchy and its lower layer, and The acquired life log is classified for each type of activity, and the number corresponding to the priority associated with the type is selected from the life log for each type. Representatives Lifelog representative extracting means for extracting, characterized in that and a life log display means for said representative lifelog the screen displaying the extracted by the representative extraction means.

  In this invention, the life log stored in the life log storage means is hierarchized in units of periods, and a hierarchy corresponding to a period designated by the user is specified as a target hierarchy among a plurality of hierarchized hierarchies. Here, hierarchization in units of periods means hierarchization along the time axis in units of time, day, week, month,..., For example. The hierarchy corresponding to the specified period means a hierarchy corresponding to the length of the specified period. Then, the life log included in the target hierarchy and its lower layer is classified for each type of activity, and the representative life log is extracted from these. The number of life logs to be displayed is determined based on the priority set for each activity. Therefore, since the life log to be displayed is the life log included in the target hierarchy and its lower layer in the period specified by the user, the highest priority of the life log included in the target hierarchy is the life log of the target hierarchy. Logs are displayed preferentially, and the number of life logs included below the target hierarchy is limited. Thus, since the number of life logs is limited and displayed, a large number of life logs are not displayed. Therefore, it is displayed preferentially by increasing the priority of the data of activities with a small number of life logs, and is not buried in other data, thereby improving the viewability.

  In the content display device of the present invention, the representative extraction unit calculates a display number of life logs included in a layer lower than the target hierarchy from the number of the representative life logs included in the target hierarchy and a predetermined total display number. Calculated as the lower layer display number, sets the display number for each activity of the life log included in the lower layer based on the lower layer display number and the priority, and displays the life log included in the lower layer for each activity. It is preferable to classify into sets according to the above and extract representative life logs of each set.

  In this invention, the display number of the life log (lower layer display number) included in the lower layer than the target hierarchy is calculated, and further, the display number for each activity of the life log included in the lower layer is determined based on the lower layer display number. Yes. The lower layer display number is a value obtained by subtracting the number of representative life logs in the target hierarchy from the predetermined display number of life logs that can be displayed on the screen. That is, the number of lower layer displays is determined after securing the number of display of the representative life log of the target hierarchy. Moreover, the display number of each activity of the life log belonging to the lower layer is determined based on the lower layer display number and the priority associated with each activity. In this way, the number of displays of the lower life log can be limited, and the activity with higher priority can be preferentially displayed among the limited number of displays, so that the entire screen can be viewed.

  In the content display device of the present invention, the content display device further includes a screen operation accepting unit that accepts an operation performed by the user on the screen on which the life log is displayed, and the hierarchy specifying unit, when the operation is an enlargement operation When the operation is a reduction operation, it is preferable that a layer one level higher than the target layer is specified as the target layer.

In this invention, when the user performs an enlargement operation or a reduction operation on the screen on which the life log is displayed, the screen operation accepting means accepts these input operations, and the hierarchy specifying means identifies the target hierarchy according to the input operation. To do. In the case of an expansion operation, the hierarchy one level lower than the hierarchy of the currently specified period is specified as the target hierarchy. In the case of a reduction operation, the hierarchy one level higher than the hierarchy of the currently specified period is specified as the target hierarchy. As specified. When the target hierarchy is newly specified, the specified period is newly set. After that, the life log of the new specified period is extracted by the same process as described above, and the extracted life log is displayed on the screen. Is displayed.
Therefore, the life log can be viewed along the time axis by performing the enlargement operation or the reduction operation, so that the hierarchical structure can be easily grasped and the convenience of the user interface can be improved.

  In the content display device of the present invention, the priority storage unit configured to set the priority for each activity type based on the frequency of occurrence of each activity type of the life log stored in the life log storage unit. It is preferable to further include a priority setting means for storing the information.

  In the present invention, the priority setting means sets the priority of each activity from the occurrence frequency of the life log stored in the life log storage means. Thus, since it sets based on the actual data memorize | stored in the life log memory | storage means, a more realistic priority can be set. Thus, since the priority is automatically set, it is convenient for the user.

  The content display method according to the present invention includes a life log storage unit that associates and stores a date and time when a user's activity occurs and the type of activity, the type of activity, and a priority set according to the type of activity. And a priority storage means for storing the contents in association with each other, and a content display method for displaying a life log that is the activity record of the user in a content display device, the life log stored in the life log storage means Stratified in units of periods, a step of setting the tier corresponding to the period specified by the user as a target tier, a step of acquiring the target tier and a life log included in the tier, and the acquired The life log is classified according to the type of activity, and the priority corresponding to the type is selected from the life log for each type. Characterized in that it comprises the steps of extracting a number of representative life logs, the step of screen display of the representative lifelog the extracted, the.

  In the present invention, as described above, when the priority of the life log included in the target hierarchy is the highest, the life log of the target hierarchy is displayed preferentially, and the number of life logs included below the target hierarchy is limited. Is done. Thus, since the number of life logs is limited and displayed, a large number of life logs are not displayed. Therefore, it is displayed preferentially by increasing the priority of the data of activities with a small number of life logs, and is not buried in other data, thereby improving the viewability.

The block diagram which shows the function structure of the content display apparatus concerning one Embodiment of this invention. The figure which shows the screen displayed with the said content display apparatus. The figure which shows the screen displayed with the said content display apparatus. The figure which shows the screen displayed with the said content display apparatus. The flowchart which shows operation | movement of the said content display apparatus. Explanatory drawing which shows that an image display is performed with a hierarchical structure.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The content display device 1 is a device that manages and displays a life log. As the content display device 1, for example, a mobile phone, a smartphone, a mobile computer, a personal computer, or the like can be used, such as a RAM (Random Access Memory) or a ROM (Read Only Memory) that stores various programs and various data. Storage means and control means such as a CPU (Central Processing Unit) for performing various calculations are provided. Although not shown, the content display device 1 includes output means such as a display and input means such as a keyboard and a touch panel.

As shown in FIG. 1, the content display apparatus 1 stores a life log database 101 and a priority database 102 in a storage unit.
For example, as shown in Table 1 below, the life log database 101 has a table structure in which a date and time when a user's activity occurs, a type of activity, and data created by the activity are associated and stored as one record. It has become. Here, the types of activities include e-mails, diaries such as blogs, captured images, utility costs such as electricity bills and gas bills, measured values such as steps and weight, and movement history, but are not limited to these. Is not to be done. The data is, for example, an image file when the type of activity is an image, and a file corresponding to the type of activity is stored. In Table 1 below, for convenience, they are represented as data 1, data 2,. The items are not limited to those listed here, and other items may be added as appropriate.
In the content display device 1, for example, every time a user activity occurs, the date and time, the type of activity, and the generated data are associated and stored in the life log database 101.

  For example, as shown in Table 2 below, the priority database 102 has a table structure in which the type of activity and the priority of the activity are associated and stored as one record. The type of activity is the type of activity stored in the life log database 101 described above. The priority is a value set according to the occurrence frequency of the life log, and the priority is higher as the occurrence frequency of the activity is lower. Specifically, out of the life logs stored in the life log database 101, the occurrence frequency is calculated for each type of activity, and the priority is set to 1, 2, 3, 4,. Is done. In this embodiment, the priority of the activity that occurs in the hour unit is 1, the priority of the activity that occurs in the day unit is 2, the priority of the activity that occurs in the week unit is 3, and the priority of the activity that occurs in the unit of 2 weeks Assume that the degree of activity is 4, the priority of activities that occur on a monthly basis is 5, the priority of activities that occur on a semi-annual basis is 6, and the priority of activities that occur on an annual basis is 7. The items are not limited to those listed here, and other items may be added as appropriate.

  In addition, the content display device 1 is specified by the user as a functional configuration of the control means, a priority setting means 11 for setting the priority of activities, a life log stratification means 12 for stratifying life logs by period, and a user. The hierarchy specifying means 13 for specifying the hierarchy corresponding to the specified period, the life log acquiring means 14 for acquiring the life log to be displayed, and the representative life log is extracted from the life logs belonging to the hierarchy lower than the specified hierarchy Representative extracting means 15 for displaying the life log on the screen, and a screen operation accepting means 17 for accepting a screen operation performed by an input means (not shown).

  The priority setting means 11 calculates the occurrence frequency of each activity based on the life log stored in the life log database 101, and sets the priority according to the occurrence frequency. Then, the activity type and the priority are associated with each other and stored in the priority database 102. The priority is set to 1, 2, 3,... According to the calculated occurrence frequency. The priority is smaller as the occurrence frequency is higher. Specifically, as shown in Table 2 above, “1” is set for each of “image”, “mail”, and “movement history” in which the occurrence frequency is in units of time, and the occurrence frequency is in units of days. “Steps” is set to “2”, “Weight” where the frequency of occurrence is weekly is set to “3”, and “Salary” and “Electricity” where the frequency of occurrence is monthly are “ “5” is set, and “6” is set to “Bonus” in which the occurrence frequency is a semi-annual unit.

The life log hierarchizing unit 12 divides the life log stored in the life log database 101 into groups in units of periods in which the same activity has occurred and stratifies the life logs. Since the life log of the same activity is generated every predetermined period, for example, every hour, every day, every week, every month, etc., the life log can be classified into each group of such a period unit. Then, the group of period units is hierarchized along the time axis. In the present embodiment, the hourly group is the lowest layer, the life log generated in the hour unit is classified into this group, and the day group that is one layer above the hourly group is the day unit. Classify life logs that occur in Similarly, the life log is further classified into groups corresponding to the period units in the upper hierarchy.
The life log hierarchizing unit 12 stores the hierarchical structure thus generated in a storage area such as a RAM.

  The hierarchy specifying unit 13 specifies a target hierarchy (hereinafter also referred to as a target hierarchy) according to a period specified by a user input operation. For example, when the period of “February 15-21, 2011” is designated by the user, since this period is in units of weeks, the group hierarchy that occurs in units of weeks is specified as the target hierarchy.

  The life log acquisition unit 14 acquires a life log belonging to the target hierarchy and a life log belonging to a hierarchy lower than the target hierarchy among the life logs generated during the period specified by the user.

  The representative extracting unit 15 extracts life logs corresponding to the priority of each activity from the life logs belonging to the target hierarchy and the hierarchy below it. The life log extracted here is displayed on the screen and is a representative life log. The representative extraction unit 15 includes a display number calculation unit 151 that calculates the number of representative life logs belonging to a lower layer than the target hierarchy (hereinafter may be referred to as a lower layer display number), and a set generation unit 152 that generates a set for each activity. And a representative extraction unit 153 that extracts one representative life log from the life log belonging to each set.

  The display number calculation unit 151 calculates the display number corresponding to the priority associated with each activity. In each hierarchy, the life log for each activity is classified according to the period unit of the activity. Since the total number of life logs that can be displayed on the screen is set in advance, life logs belonging to the target hierarchy with the highest priority are displayed on the screen with the highest priority. Here, the display number of the representative life log of the target hierarchy is the number A of types of life log activities belonging to the target hierarchy. By preferentially displaying the representative life log of the target hierarchy, the display number of life logs belonging to a layer lower than the target hierarchy is limited. Specifically, when the total number of life logs that can be displayed on the screen is C, the lower layer display number B can be obtained by the following equation. The total number C of lifelogs that can be displayed on the screen is preferably set as the specified period is longer. For example, when specified in units of months, the total number C is set to 12, if specified in units of weeks or days. The total number C is set to 8. In general, the total number C is set larger than the number of types of activities corresponding to the acquired life log.

[Formula 1]
B = C−A (1)

  Moreover, since the priority is set to each activity of the life log belonging to the target hierarchy and its lower layer, the display number of each activity is determined based on this priority. Since the number of life logs displayed in the target hierarchy is the number of types of activities A as described above, a method for determining the number of life logs displayed below the target hierarchy will be described here. In accordance with the lower layer display number B, the higher the priority, the higher the display number, and the lower the priority, the lower the display number. For example, when the period unit of the target hierarchy is weekly, the activity type of the life log belonging to the target hierarchy is “weight” and the priority is “3” (see Table 2). Since there are “image”, “mail”, “movement history”, and “step count” as the types of life log activities that belong to the lower layer than this target hierarchy, the lower layer display number B is set to “image”, “mail”, “movement history”, “step count”. ”. Among these, adjustment is performed so that the number of “steps” having a high priority is maximized. If the lower layer display number B is 7, the display number of “steps” is set to 3, the display number of “images” is set to 2, and the display numbers of “mail” and “movement history” are respectively set to 1.

The set generation unit 152 classifies life logs belonging to the target hierarchy acquired by the life log acquisition unit 14 into A sets, and classifies life logs belonging to layers lower than the target hierarchy into B sets. The layers below the target layer are classified according to the feature of the activity according to the display number of each activity set by the display number calculation unit 151. As a classification method, for example, in the case of an image, it can be classified by date, color, etc., in the case of e-mail, it can be classified by date, sender, sender group, etc., and in the case of movement history, it can be classified by date, place, etc. it can. By using these classification methods, the display number set for each activity is adjusted.
The representative extraction unit 153 randomly extracts one representative life log representing each set from the generated A + B sets.

The life log display unit 16 causes the output unit to display the representative life log extracted by the representative extraction unit 15 on the screen. The life log display unit 16 includes a display image generation unit 161 and a display unit 162.
The display image generation unit 161 generates a screen display of the life log presented to the user according to the type of activity of the life log. If the type of activity is an image, generate a reduced image of the image, if it is an email, generate an image with the subject and sender name displayed, if it is a movement history, generate a map image marking the movement route, In the case of gas, electricity, steps, and weight, an image displaying the numerical values is generated. In addition, although the display screen in each designated period is shown in FIG.2, FIG3 and FIG.4, only the name of activity is described in each life log.

  As shown in FIGS. 2, 3, and 4, the display unit 162 displays the generated display images in C display areas. The display order may be displayed in the order of occurrence of life logs, or may be displayed for each type of life log activity. FIG. 2 shows a monthly life log display screen. In FIG. 2, a life log 311 is a representative life log of the target hierarchy, and other life logs are representative life logs of lower layers. FIG. 3 shows a weekly life log display screen. In FIG. 3, a life log 321 is a representative life log of the target hierarchy, and other life logs are representative life logs of lower layers. FIG. 4 shows a daily life log display screen. In FIG. 4, a life log 331 is a representative life log of the target hierarchy, and other life logs are representative life logs of lower layers.

  The screen operation accepting unit 17 accepts an input operation performed by the user using the input unit on the screen output to the output unit, and acquires a period specified by the input operation. A touch panel is used as the input means. For example, an input operation in which a user designates a period to display a life log list or an enlargement operation or a reduction operation performed on a screen on which the life log list is displayed is accepted. Further, when an input operation for displaying a list of life logs is received, a period specified by the user is acquired. When an enlargement operation or a reduction operation is received, a period newly specified by these operations is acquired. Specifically, based on the designated period of the currently displayed life log list, the designated period of the hierarchy one level higher or lower than the hierarchy corresponding to the designated period is specified. As a result, in the case of an expansion operation, the life log of the hierarchy one level lower than the currently displayed hierarchy can be displayed. In the case of a reduction operation, the life log of a hierarchy one level higher than the currently displayed hierarchy is displayed. Can be displayed.

[Operation of Content Display Device 1]
Next, the operation of the content display device 1 will be described based on the flowchart of FIG.
The life log database 101 is a state in which life logs based on user activities are accumulated.
The screen operation accepting unit 17 accepts an input operation for displaying a period specified by the user and a list of life logs (step S1).
The priority setting means 11 sets the priority for each activity based on the data stored in the life log database 101, and stores it in the priority database 102 (step S2). The priority setting method is as described above.

  Next, the life log hierarchization unit 12 groups the life logs stored in the life log database 101 in units of occurrence frequency periods, and stratifies these groups along the time axis (step S3). Specifically, when the life logs shown in Table 1 are grouped, the hourly group is “image”, “mail”, “movement history”, the daily group is “steps”, and the weekly group is grouped. Is “weight”, and the monthly group is “electricity bill” “gas bill” “salary”. These groups are hierarchized in the order of time unit, day unit, week unit, and month unit along the time axis. The life log hierarchized here is stored in a storage area such as a RAM.

Next, the hierarchy specifying means 13 specifies the hierarchy corresponding to the period designated by the user as the target hierarchy (step S4). Specifically, when the designated period is “February 15-21, 2011”, a weekly group is specified as the target hierarchy.
Next, the life log acquisition means 14 acquires a life log belonging to the target hierarchy and a life log belonging to a hierarchy lower than the target hierarchy among the life logs generated during the period specified by the user (step S5).

Next, the display number calculation unit 151 acquires the number A of classifications when life logs belonging to the target hierarchy are classified according to the type of activity (step S6). Specifically, since the life log belonging to the weekly group as the target hierarchy is one “weight” in Table 2 described above, A = 1.
And the display number calculation part 151 calculates the lower layer display number B of the life log of the hierarchy below the object hierarchy by the above-mentioned formula (1), and based on the lower layer display number B and the priority of each activity, The display number for each type of activity of the life log belonging to the hierarchy is set (step S7). Here, since the total display number C of the life log in the week unit is preset as 8, B = 8-1-1 = 7. In addition, there are four types of activities in the life log in the lower layer: “image”, “mail”, “movement history”, and “number of steps”, and since the priority associated with “number of steps” is the highest, the number of displays is set to 3. Since the priorities of “image”, “mail”, and “movement history” are the same, the display numbers are adjusted to 2, 1, 1 respectively.

  The set generation unit 152 classifies life logs belonging to the target hierarchy as one set, and classifies life logs belonging to a hierarchy lower than the target hierarchy into seven sets (step S8). Here, since the weekly group is the target hierarchy, life logs belonging to the lower hierarchy, that is, the hourly and daily groups are targeted. Since the life logs belonging to these groups are “image”, “mail”, “movement history”, and “number of steps”, the life logs of each activity are classified by feature so as to be a set of display numbers set in S7. For example, “number of steps” can be classified by number of steps, and “image” can be classified by color.

  Next, the representative extraction unit 153 extracts one representative life log of each set from the eight sets (step S9). In this embodiment, since there is only one life log belonging to the target hierarchy, that life log becomes the representative life log. In addition, as a method of extracting the life log belonging to the lower layer, data with the earliest occurrence date may be extracted, may be extracted randomly, or data closest to the center (average date) of the period is selected. It may be extracted. In addition, data that the user has previously checked as “important” (for example, important schedule data) may be extracted. In addition, as long as the data has position data, data closest to the center of gravity position among a plurality of data in the period may be extracted. Further, as long as measurement data such as the number of steps and weight, data having the largest (smallest) numerical value (for example, the number of steps and weight) may be extracted.

  Next, the life log display means 16 displays the representative life log extracted in S9 on the screen of the output means as shown in FIG. 3 (step S10). Specifically, the display image generation unit 161 generates a display image corresponding to the type of activity of each life log, and the display unit 162 displays the generated display image in each of eight display areas.

  As described above, when the user performs a screen operation using the input unit in a state where the life log is displayed on the output unit, the screen operation reception unit 17 receives the operation (step S11). The screen operation performed by the user includes a case where an enlargement operation is performed on one life log among a plurality of life logs displayed on the screen, and a case where a reduction operation is performed at an arbitrary position on the screen.

The screen operation reception unit 17 determines whether or not the operation is an enlargement operation (step S12).
If the operation is an enlargement operation, the result is Yes, and the screen operation reception unit 17 acquires the date and time of the life log that is the object of the enlargement operation (step 13). And the hierarchy specific | specification means 13 specifies the hierarchy one level lower than the present object hierarchy as an object hierarchy (step S14), and returns to step S5. In this embodiment, since the weekly group is the target hierarchy, the daily group, which is the next lower hierarchy, becomes the new target hierarchy, and the specified period is the date of the acquired date. Then, the processing from step S5 to S16 is performed based on the new target hierarchy and the new designated period.

On the other hand, if the operation is not an enlargement operation, the result is No, and the screen operation accepting unit 17 determines whether or not the operation is a reduction operation (step S15).
If the operation is a reduction operation, the answer is Yes, and the hierarchy specifying unit 13 specifies the hierarchy one level higher than the current target hierarchy as the target hierarchy (step S16) and returns to step S5. In this embodiment, since the weekly group is the target hierarchy, the monthly group, which is one level higher, becomes the new target hierarchy, the specified period is the month of the specified period, and the above-described step S5 Works the same way. If the operation is not a reduction operation, the result is No and the process ends.

Here, the transition state of the screen when the enlargement operation and the reduction operation are performed will be described with reference to FIG.
In the operation of the content display device 1 described above, first, a period of “February 15-21, 2011” is designated, and the weekly screen 32 is displayed. On the weekly screen 32, eight life logs are displayed, and seven representative life logs are displayed among the “weight” belonging to the weekly hierarchy and the life logs belonging to the hierarchy lower than the weekly unit.
When the user performs an enlargement operation on the image 322 out of the plurality of life logs displayed on the weekly screen 32, based on the shooting date and time of the image 322, the layer one layer below the currently displayed layer is displayed. The period becomes the new specified period. For example, if the shooting date and time of the image 322 is February 21, 2011, this date becomes a new designated period, and the daily unit screen 33 is displayed by the above-described operation. On the daily screen 33, eight life logs are displayed, and “representing the number of steps” belonging to the daily hierarchy and seven representative life logs among the life logs belonging to the hierarchy lower than the daily unit are displayed.

On the other hand, when the user performs a reduction operation at an arbitrary position on the weekly screen 32, the period of the hierarchy one level higher than the currently displayed hierarchy becomes a new designated period. Since the hierarchy one level higher than the designated period “February 15-21, 2011” on the weekly screen 32 is “February 2011”, this period becomes the new designated period. And the monthly screen 31 is displayed by the operation | movement mentioned above. On the monthly screen 31, 12 life logs are displayed, and 10 representative life logs among the “electricity charges” and “gas charges” belonging to the monthly level and the life logs belonging to the lower level than the monthly level are displayed. Is displayed.
When the user performs an enlargement operation on the mail 312 among the plurality of life logs displayed on the monthly screen 31, the one week period including the date of the mail 312 becomes a new designated period. That is, if the date of the mail 312 is February 20, 2011, the period “February 15-21, 2011” including this date becomes the new designated period, and the weekly screen 32 is displayed on the screen.

[Effects of First Embodiment]
In the first embodiment described above, the following operational effects can be achieved.
The content display device 1 classifies the life logs accumulated in the life log database 101 for each type of activity, classifies them into groups of period units according to the frequency of occurrence of each activity, and groups the groups along the time axis. Turn into. Also, the priority setting means 11 sets a priority according to the frequency of occurrence for each activity. And a target hierarchy is specified based on the period designated by the user. Since the priority set for each activity of the life log belonging to the target hierarchy is the highest within the period specified by the user, the life log belonging to the target hierarchy is preferentially displayed on the screen. In addition, since the priority set for each activity of the life log belonging to the target hierarchy is low, the number of life logs belonging to the hierarchy below the target hierarchy is limited according to the number of representative life logs belonging to the target hierarchy Then, representative life logs corresponding to the number of displays are extracted and displayed on the screen.

  In this way, life logs belonging to the target hierarchy are preferentially displayed and the number of life logs belonging to the hierarchy below the target hierarchy is limited and displayed, so that a large number of life logs are not displayed. Therefore, the activity data with a low occurrence frequency of the life log is not buried in other data, so that the viewability is improved.

  In addition, representative lifelogs below the target hierarchy are extracted by classifying lifelogs within the specified period belonging to the hierarchy below the target hierarchy into sets for each type of activity and for each data feature. The representative life log is extracted from each. If the activity type is an image, it can be classified by shooting date, color, etc. If the activity type is email, it can be classified by email date, sender, etc. In this case, classification can be made based on the date, place, etc. of the movement. In this way, since similar life logs are classified into sets for each feature, the user can see what other life logs exist by looking at the representative life logs extracted from these sets. Can be predicted to some extent. Therefore, since only the representative life log of each set needs to be displayed on the screen, the number of life logs to be displayed is reduced and the viewability is excellent.

  The life log accumulated in the life log database 101 is hierarchized in units of periods, and the life log along the time axis hierarchy is displayed by the enlargement operation and the reduction operation. Thus, since the life log can be browsed along the time axis, the hierarchical structure can be easily grasped, and the convenience of the user interface can be improved.

  Further, in the above embodiment, the life log once hierarchized is stored in the storage area, and when a new period is designated by the enlargement operation or the reduction operation, the life structure is read by reading the hierarchical structure stored in the storage area. It is displayed. Therefore, since it is not necessary to perform the hierarchization process again, the processing speed can be increased.

[Modification]
In addition, this invention is not limited to embodiment mentioned above, In the range which can achieve the objective of this invention, the deformation | transformation shown below is also included.
For example, in the above embodiment, the priority setting unit 11 is configured to set the priority of each activity based on the life log stored in the life log database 101. However, the priority may be set by the user. . Depending on how the priority is set, the type of life log displayed on the screen can be freely changed, so that the user interface can be improved.

  Moreover, in the said embodiment, when the period was designated by the user, the life log was hierarchized (for example, step S3 in FIG. 5), but the life log data was hierarchized and stored in advance according to the date. This may be presented in response to a user operation. In addition, when the period classification to be displayed is determined in advance (2010, April 2010, third week of May 2010, etc.), it is possible to perform processing more efficiently by layering in advance.

  In the above embodiment, the representative life log is extracted by classifying each activity type in each hierarchy. However, the user may be able to set the classification based on the activity type. For example, you can set different types of lifelogs such as images and videos to be grouped together, or extract representative lifelogs by grouping email, blog posts, and messenger posts as one group. May be displayed.

  In the above embodiment, only the operation of moving up and down the hierarchy has been described with respect to the change of the display of the life log, but the movement within the same hierarchy, that is, the previous month or the next month of the currently displayed data. If you want to display the previous day or the next day's data, set the desired period by flicking (slide) with the finger, operating the "front" button or "back" button, or scrolling the time axis. It may be possible. Thereby, both the movement in the depth direction of the hierarchy between the upper hierarchy and the lower hierarchy and the movement in the same hierarchy are realizable.

  In the above embodiment, the life log of the upper hierarchy or the lower hierarchy is displayed by performing the enlargement operation or the reduction operation on the screen. However, the present invention is not limited to the enlargement operation or the reduction operation. For example, a time period scroll may be displayed on the screen, and a desired period may be set by moving the scroll.

  The present invention can be used as a content display device and a content display method for managing and displaying a life log.

DESCRIPTION OF SYMBOLS 1 ... Content display apparatus 11 ... Priority setting means 12 ... Life log hierarchization means 13 ... Hierarchy identification means 14 ... Life log acquisition means 15 ... Representative extraction means 16 ... Life log display means 17 ... Screen operation reception means 101 ... Life log Database 102 ... Priority database

Claims (5)

A content display device that displays a life log that is a user activity record,
Life log storage means for storing the date and time when the user's activity occurred and the type of the activity in association with each other;
Priority storage means for storing the activity type and the priority set according to the activity type in association with each other;
Life log hierarchization means for hierarchizing life logs stored in the life log storage means on a period basis;
A hierarchy specifying unit that sets the hierarchy corresponding to the period specified by the user as a target hierarchy;
A life log acquisition means for acquiring a life log included in the target hierarchy and its lower layer;
A representative extracting means for classifying the acquired life log for each type of the activity, and extracting from the life log for each type a number of representative life logs corresponding to the priority associated with the type; ,
Life log display means for displaying the representative life log extracted by the representative extraction means on a screen. A content display device, comprising: The content display device according to claim 1,
The representative extraction means includes
From the number of the representative life logs included in the target hierarchy and a predetermined total display number, the display number of life logs included in the layer lower than the target hierarchy is calculated as the lower layer display number, and the lower layer display number and the priority Based on the degree, the number of displays for each activity of the life log included in the lower layer is set, the life log included in the lower layer is classified into a set according to the number of display for each activity, and the representative life log of each set The content display device characterized by extracting. The content display device according to claim 1 or 2,
Screen operation accepting means for accepting an operation performed by the user on the screen on which the life log is displayed;
The hierarchy specifying means includes:
If the operation is an enlargement operation, the hierarchy immediately below the target hierarchy is set as the target hierarchy, and if the operation is a reduction operation, the hierarchy immediately above the target hierarchy is specified as the target hierarchy. A content display device characterized by: The content display device according to any one of claims 1 to 3,
A priority setting unit configured to set the priority for each type of activity based on the frequency of occurrence of each activity type of the life log stored in the life log storage unit and store the priority in the priority storage unit; The content display device further comprising: Priority to store in association the life log storage means that stores the date and time when the user's activity occurred and the type of activity in association with each other, the type of activity, and the priority set according to the type of activity A content display method for displaying a life log that is an activity record of the user in a content display device comprising a degree storage means,
Stratifying the life log stored in the life log storage means on a period basis;
Setting the hierarchy corresponding to the period specified by the user as a target hierarchy;
Obtaining a life log included in the target hierarchy and its lower layer;
Classifying the acquired life log for each type of activity, and extracting from the life log for each type a number of representative life logs corresponding to the priority associated with the type;
And a step of displaying the extracted representative life log on a screen.

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