JP2013025850A - Content information display device and program thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly display a music list when a page advance button or the like is continuously operated by user operation.SOLUTION: When a page advance instruction to display a content list of the next page is inputted by user operation, a lapse time from the input of the preceding page advance instruction till the input of the current page advance instruction is calculated, and the number of display characters in the content list for one page is determined on the basis of the calculated lapse time. Content list generation means generates a content list for one page including characters of the determined number of display characters. Then, since the number of display characters of the content list changes when the page advance instruction is continuously inputted, a problem of giving stress to a user can be eliminated. The problem occurs because the generation of a content list does not catch up with the user's operation speed of the page advance button so that it takes time until desired content information is displayed in the music list.

Description

  The present invention relates to content information display and a program thereof.

  2. Description of the Related Art A playback device that records content such as a music file on a storage medium such as an HDD, reads the content from the HDD, and plays it back is used. When the user operates the playback device and selects a desired content to be played back from among a plurality of contents recorded on the HDD, a song list is displayed on the display unit of the playback device. The song list is a list of song names of a plurality of song files, and is generated by acquiring content information from the content information DB recorded in the HDD. When a user operation causes a cursor to be displayed at a desired song name in the song list and a playback instruction is input, the song file on which the cursor is displayed is read from the HDD and played back. When the screen size of the display unit of the playback device is small, for example, only 10 song names can be displayed at a time in the song list displayed on the display unit. Note that the song list displayed at once is called a one-page song list.

  When the playback device displays the song list of the first page (1 to 10 songs), the playback device acquires the song names of the 1 to 10 songs from the content information DB in the HDD, and generates and displays the song list. . Here, when the page advance button is operated by the user operation, the display is changed from the currently displayed song list on the first page to the song list on the second page. At this time, the playback apparatus acquires the names of the 11th to 20th songs included in the song list on the second page from the content information DB, generates a song list, and displays the song list. In this way, each time the page advance button is operated by a user operation, the number of music names displayed in the music list on the next page is acquired from the content information DB, and the music list is generated and displayed. However, it takes a certain amount of time to acquire the song names for the displayed number of the song list from the content information DB and generate the song list. Accordingly, when a huge number of music files are recorded on the HDD and the music list page needs to be advanced many times by user operation, the generation of the music list cannot keep up with the operation speed of the user's page advance button. There is a problem in that it takes time until a desired song name is displayed in the song list, and stresses the user.

JP 2009-71657 A

  The present invention has been made to solve the above-described conventional problems, and its purpose is to enable content to be displayed quickly when a page advance button or the like is continuously operated by a user operation. It is to provide an information display device.

  A content information display device according to a preferred embodiment of the present invention includes a display unit that displays a content list for one page including content information of a predetermined number of content information among a plurality of content information, and a user operation. An elapsed time calculating means for calculating an elapsed time from the input of the previous page advance instruction to the input of the current page advance instruction when a page advance instruction for displaying the content list of the next page is input; and the calculated elapsed time A character number determining means for determining the number of display characters in a content list for one page based on time; and a content list generating means for generating a content list for one page including characters of the determined number of display characters, the display Means for determining the table generated by the content list generating means; A content list of one page containing a number of characters to be displayed on the display device.

  In this embodiment, when a page advance instruction for displaying the content list of the next page is input by a user operation, an elapsed time from the input of the previous page advance instruction to the input of the current page advance instruction is calculated, Based on the calculated elapsed time, the number of display characters in the content list for one page is determined. The content list generation means generates a content list for one page including the determined number of display characters. Therefore, when the page advance instruction is continuously input, the number of characters displayed in the content list changes, so that the content list generation cannot keep up with the operation speed of the user's page advance button, and the desired content information is stored in the song list. It is possible to solve the problem that it takes time to display and stresses the user.

  In a preferred embodiment, the number-of-characters determining means determines the number of displayed characters in the content list for one page so that the number of displayed characters decreases as the calculated elapsed time becomes shorter.

  Therefore, when the page advance instruction is continuously input, the number of characters displayed in the content list is reduced, so that the time required for generating the content list can be shortened. Therefore, it is possible to solve the problem that the content list generation does not catch up with the operation speed of the user's page advance button, and it takes time until the desired content information is displayed in the song list, which gives the user stress.

  In a preferred embodiment, when the next page advance instruction is not input even after a predetermined time has elapsed since the previous page advance instruction is input, the content list generating means is configured to display all characters in the currently displayed content list. Is generated, and the display unit displays the content list for one page including all characters generated by the content list generation unit on the display device.

  Therefore, when the continuous input of the page advance instruction is completed, the content list of one page displayed at the end is finally displayed as a content list including all characters. Therefore, all characters can be displayed in the content list of the page desired by the user.

  In a preferred embodiment, the content list generation means generates a content list for one page including characters of the determined number of display characters using the first display format or the second display format. And when the content list generating means generates the content list for one page including the determined number of display characters using the first display format, all the displayed content information is the same. When at least one of the displayed content information is determined to be different from the determination unit that determines whether or not the content list is displayed, the display format when the content list generation unit generates the content list for one page is When the display format is determined to be 1 and it is determined that all the displayed content information is the same, the content list generation means 1 Further comprising a display format determining means for determining a display format in generating a content list of over di content in the second display format.

  In this case, when the content list is displayed in the first display format, if all pieces of content information are the same, the content list is generated and displayed in the second display format. Therefore, the problem that the content information in one page cannot be distinguished can be solved.

  In a preferred embodiment, the content list generation means generates a content list for one page including characters of the determined number of display characters using the first display format or the second display format. When the determination means determines whether or not the determined number of display characters is equal to or less than the predetermined number, and when it is determined that the determined number of display characters is greater than the predetermined number, the content list generation means When the display format for generating the content list for one page is determined to be the first display format, and it is determined that the determined number of display characters is equal to or less than the predetermined number, the content list generating means is for one page. Display format determining means for determining the display format for generating the content list as the second display format.

  In this case, it is possible to solve the problem that the content information in one page cannot be distinguished even when the number of display characters is a predetermined number or less.

  It is possible to provide a content information display device capable of quickly displaying a song list when a page advance button or the like is continuously operated by a user operation.

1 is a block diagram showing a playback apparatus 100 according to a preferred embodiment of the present invention. It is a figure which shows the screen of the music list of 1 page. It is a figure which shows the screen of the music list of 1 page. It is a figure which shows the screen of the music list of 1 page. It is a figure explaining the priority which displays the character of a display character number in the music list of 1 page (pattern A). It is a figure which shows the example of the music list of 1 page in case all the display character numbers are (100). It is a figure which shows the example of the music list of 1 page in case the number of display characters is 50. It is a figure which shows the example of the music list of 1 page in case the number of display characters is 60. FIG. It is a figure which shows the example of the music list of 1 page in case the number of display characters is 30. It is a figure which shows the data transmitted to the video processing part 50 from the control part 2 in case the number of display characters is 50. FIG. It is a figure which shows the data transmitted to the video processing part 50 from the control part 2 in order to display an undisplayed character. 4 is a flowchart showing the operation of the playback apparatus 1 (control unit 2 or the like). 4 is a flowchart showing the operation of the playback apparatus 1 (control unit 2 or the like). It is a figure explaining the priority which displays the character of a display character number in the music list of 1 page (pattern B). In pattern B, it is a figure which shows the example of the music list of 1 page in case the number of display characters is 30. 4 is a flowchart showing the operation of the playback apparatus 1 (control unit 2 or the like). It is a figure which shows the data transmitted to the image processing part 50 from the control part 2 in case the pattern A and the number of display characters are 50. It is a figure which shows the data transmitted to the video processing part 50 from the control part 2 in case the pattern B and the number of display characters are 30. 4 is a flowchart showing the operation of the playback apparatus 1 (control unit 2 or the like).

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to these embodiments. FIG. 1 is a block diagram showing a playback apparatus 1 to which a content information display apparatus according to a preferred embodiment of the present invention is applied.

  The playback device 1 records a plurality of contents in a storage medium such as an HDD (hard disk drive) or a flash memory. The content is a general term for music data (music file), video data, image data, and the like. In this example, the content is a music file. The playback device 1 reads out desired content from the HDD and plays it back. The playback device 1 acquires content information of a plurality of contents from the HDD, and displays a content list (hereinafter referred to as a song list) in which the content information is listed. If the content is a song file, the content information is metadata such as the song name (title), artist name, album name, genre name, author, and release year of the song file. In this example, the content information is described as an example. To do.

  The playback apparatus 1 includes a control unit 2, a memory (ROM, RAM, etc.) 3, a storage medium 4 such as an HDD or a flash memory, a video processing unit 5, a playback unit 6, an amplification unit 7, and an operation unit 8. And a display unit 9. The control unit 2 controls the entire playback device 1 based on an operation program of the playback device 1 such as a content information display program stored in the memory (ROM) 3 or the HDD 4. is there.

  The HDD 4 stores a plurality of music files and a content information database (hereinafter referred to as a content information DB). The content information DB is a database for storing and managing content information (song name, artist name, album name, etc.) related to all song files recorded in the HDD 4. For example, song names of song files are rearranged in alphabetical order and / or alphabetical order, and song numbers are assigned in that order.

  The control unit 2 acquires content information from the content information DB, causes the video processing unit 5 to generate a song list, and causes the display unit 9 to display the song list. The song list includes a predetermined number of song names that can be displayed on the display unit 9 among the song names of a plurality of song files recorded in the HDD 4. As shown in FIG. 2 (FIGS. 2A to 2C), the display unit 9 can display a song list including, for example, 10 song names. A song list that includes a predetermined number of song names and can be displayed on the display unit 9 at a time is called a one-page song list. The song list in FIG. 2A is a song list on the first page, and includes the song names (a01 to a10) of ten song files having song numbers 1 to 10. FIG. 2B shows a song list on the second page, which includes the song names (a11 to a20) of ten song files with song numbers 11 to 20. FIG. 2C shows a song list on the third page, which includes the song names (a21 to a30) of the ten song files with song numbers 21 to 30.

  The operation unit 8 includes a page advance button for advancing the song list page displayed on the display unit 9 to the next page and a page return button for returning to the previous page. When the page advance button is operated, a page advance instruction is input to the control unit 2, and when the page return button is operated, a page return instruction is input to the control unit 2. The operation unit 8 may be an operation button provided on the housing of the playback device 1 or an operation button provided on a remote control transmitter.

  In the present embodiment, when the page advance button or the page return button is continuously operated by a user operation, the number of characters displayed in the song list on one page in order to quickly display the song list according to the user operation. Decrease. That is, when the page advance button (or page return button) is operated, the control unit 2 calculates an elapsed time (operation interval) from the previous operation of the page advance button to the current operation of the page advance button. Based on the calculated elapsed time (operation interval), the control unit 2 determines the number of display characters in the one-page song list. For example, when the elapsed time is short, the number of displayed characters is reduced, and when the elapsed time is long, the number of displayed characters is increased. When the user continuously operates the page advance button, by changing the number of display characters according to the operation interval, a one-page song list can be displayed quickly (without delay) in response to the user operation. it can. This is because when the number of displayed characters is smaller, the time taken to generate and display a one-page song list is shorter.

  FIG. 3 shows the priority order of the character display order when the maximum number of characters displayed in one song name is 10 (that is, the total maximum number of characters in 10 song names is 100) in the one-page song list. FIG. In FIG. 3, characters are displayed in ascending order of the number according to the number of display characters determined according to the operation interval of the page advance button. For example, when the number of display characters is 60, the characters at the positions 1 to 60 in FIG. 3 are displayed, and the remaining characters at 61 to 100 are not displayed. That is, for each of the ten song names, the first six characters are displayed, and the seventh and subsequent characters are not displayed.

  For example, when displaying a one-page song list as shown in FIG. 4, if the number of display characters is determined to be 50, only the characters indicated by 1 to 50 in FIG. 3 are displayed as shown in FIG. Is done. Similarly, when the number of display characters is determined to be 60 when displaying a one-page song list as shown in FIG. 4, only the characters indicated by 1 to 60 in FIG. 3 are displayed as shown in FIG. Is displayed. Furthermore, when the number of display characters is determined to be 30 when displaying the one-page song list as shown in FIG. 4, only the characters at the locations indicated by 1 to 30 in FIG. 3 are displayed as shown in FIG. Is done.

  Note that after the continuous operation of the page advance button is finished after the continuous operation of the page advance button, that is, when the operation of the further page advance button is not executed for a predetermined time or longer, the control unit 2 controls the page of the currently displayed page. By specifying undisplayed characters in the song list and displaying the undisplayed characters, all the characters of the song list on one page are finally displayed on the display unit 9.

  Returning to FIG. 1, the video processing unit 5 receives the content information from the control unit 2, generates a one-page song list, and outputs and displays the song list on the display unit 9. Specifically, as shown in FIG. 8, the video processing unit 5 receives, from the control unit 2, the number of display characters (first data, “50” here) and the display start position (2). The second data (here, “0”) and the characters that are actually displayed (the third and subsequent data, and the characters are listed in the order of the numbers (1, 2, 3,...) Shown in FIG. ). The video processing unit 5 generates, for example, a one-page song list as shown in FIG. 5 based on the data.

  Further, when displaying the undisplayed characters of the song list of one page after the continuous operation of the page advance button is finished, the video processing unit 5 displays the number of undisplayed characters (the first character as shown in FIG. 9 from the control unit 2). Data, here “50”), the display start position (second data, here “51”), and the actually displayed characters (third and subsequent data, the numbers shown in FIG. (51, 52, 53,... Are listed in order). Based on the data, the video processing unit 5 generates a one-page song list including all characters as shown in FIG.

  Returning to FIG. 1 again, the playback unit 6 executes playback processing (including decompression processing, D / A conversion processing, equalizer processing, and the like) for the music file read from the HDD 4. The amplifying unit 7 amplifies the audio signal reproduced by the reproducing unit 6 and supplies the audio signal to a speaker (not shown).

  As described above, the display unit 9 displays a one-page music list, and an arbitrary one such as an LCD (liquid crystal display), an organic EL display, or an FL tube can be adopted. The display unit 9 may be an OSD (on-screen display) generation unit for displaying a music list on a display device such as a TV receiver connected to the outside of the playback device 1.

  The operation of the playback apparatus 1 having the above configuration will be described. 10 and 11 are flowcharts showing processing of the playback apparatus 1 (control unit 2, content processing program, etc.). Note that the case where the page of the song list of one page is advanced to the next page, that is, the case where the page advance button is operated will be described as an example, but the same applies when returning to the previous page. Further, in this example, a case where the one-page song list shown in FIG. 4 is displayed as a song list for simplification of explanation will be described as an example, but the one-page song list that is actually displayed in accordance with the page advance button operation. Shall be changed sequentially.

  As shown in FIG. 10, the control unit 2 of the playback apparatus 1 determines whether or not an instruction to advance the song list to the next page is input by a user operation, that is, whether or not the page advance button is operated (S1). .

  When the page advance button is operated (YES in S1), the control unit 2 determines whether or not the previous operation time is stored in the memory (RAM) 3 (S2). In the single operation of the page advance button only once or the first operation of the continuous operation of the page advance button, the previous operation time is not stored in the memory 3 (NO in S2). Therefore, the control unit 2 newly stores the current time managed by the internal clock as the previous operation time in the memory 3 (S5), and returns the process to S1. In this case, as shown in FIG. 4, a song list including all characters in the song list on one page is generated and displayed.

  On the other hand, when the previous operation time is stored in the memory 3 (YES in S2), the control unit 2 subtracts the previous operation time from the current time, so that the current page advance button is changed from the previous page advance button operation. The elapsed time until the operation, that is, the operation interval of the page advance button is calculated (S3). The control unit 2 temporarily stores the calculated operation interval information in the queue (S4). Then, the control unit 2 stores (overwrites) the current time as the previous operation time in the memory 3 (S5), and returns the process to S1.

  Subsequently, as shown in FIG. 11, the control unit 2 determines whether or not the operation interval information is stored in the queue (S11). That is, it is determined whether or not the continuous operation of the page advance button has been executed. When the operation interval information is stored in the queue (YES in S11), the control unit 2 acquires the operation interval information from the queue (S12). At this time, the operation interval information is deleted from the queue. Subsequently, the control unit 2 acquires all characters of the song information of the one-page song list to be displayed next from the content information DB (S14). That is, the characters of ten song titles are acquired from the song title next to the last song title in the currently displayed one-page song list. For example, it is assumed that a character string of a music list as shown in FIG. 4 is acquired (S14).

  Subsequently, the control unit 2 determines the number of display characters in the one-page song list based on the acquired operation interval information (S15). For example, the number of display characters is determined by operation interval ÷ predetermined time. Here, the predetermined time is not particularly limited, but is, for example, the total time of the transmission time from the control unit 2 per character to the video processing unit 5 and the drawing time per character in the video processing unit 5. The predetermined time is set in advance by the manufacturer of the playback apparatus 1. Therefore, when the operation interval is short, the number of displayed characters decreases, and when the operation interval is long, the number of displayed characters increases. However, the present invention is not limited to this, and the number of display characters may be set in advance for each operation interval range (for example, the operation interval is 0.1 seconds or more and less than 0.3 seconds is 30 characters, 0.3 seconds or more) 40 characters for less than 0.6 seconds).

  The control unit 2 extracts characters to be displayed from all the characters in the music list shown in FIG. 4 according to the calculated number of display characters, and transmits it to the video processing unit 5. Specifically, when the number of display characters is 50, data as shown in FIG. 8 is transmitted to the video processing unit 5. That is, a series of data including “number of display characters” in the first data, “display start position” in the second data, and “characters actually displayed” in the third and subsequent data are transmitted. When the video processing unit 5 receives the data shown in FIG. 8 from the control unit 2, as shown in FIG. 5, the video processing unit 5 generates a one-page song list with 50 display characters and displays it on the display unit 9 (S16). .

  The control unit 2 stores the number of undisplayed characters in the memory 3 (S17). For example, when the number of display characters determined in S15 is 50, the number of undisplayed characters is the total number of characters−the number of display characters, and thus 100−50 = 50. The number of undisplayed characters is used to display all characters in the song list on one page by additionally displaying the characters for the number of undisplayed characters in the song list when the continuous operation of the page advance button is completed. The Thereafter, the process returns to S11.

  As described above, when the page advance button is continuously operated, the number of characters displayed in the song list on one page is determined based on the elapsed time from the previous operation time to the current operation time, that is, the operation interval. If all the characters in the one-page song list are displayed when the operation interval is short, the transmission of data from the control unit 2 to the video processing unit 5 and the drawing of characters in the video processing unit 5 are performed by the user's page advance button. In this embodiment, when the operation interval is short, by reducing the number of displayed characters, data transmission from the control unit 2 to the video processing unit 5 and characters in the video processing unit 5 are performed. It is possible to reduce the time required for drawing and to prevent the display from being delayed with respect to the user's page advance button operation.

  In S11, when it is determined that the operation interval information is not stored in the queue (NO in S11), the control unit 2 starts (resets) the timer count when the operation interval information is finally acquired from the queue. The timer is continuously counted (S18). This timer is for detecting that the page advance button is not operated for a predetermined time, that is, for detecting the end of the continuous operation of the page advance button. The control unit 2 determines whether or not the timer count has passed a predetermined time, that is, whether or not the continuous operation of the page advance button has ended (S19). If the predetermined time has not elapsed (NO in S19), it is still too early to determine that the continuous operation of the page advance button has ended, and the process returns to S11.

  On the other hand, if the predetermined time has elapsed (YES in S19), it can be determined that the continuous operation of the page advance button has ended, so the control unit 2 does not display in the currently displayed one-page song list. It is determined whether or not a character exists (S20). This can be determined by referring to the information on the number of undisplayed characters stored in S17.

  If there is an undisplayed character in the currently displayed one-page song list (YES in S20), the control unit 2 converts the data shown in FIG. 9 based on the number of undisplayed characters stored in the memory 3. It is generated and transmitted to the video processing unit 5. That is, a series of data including “number of undisplayed characters” in the first data, “display start position (start position of undisplayed characters)” in the second data, and “actually displayed characters” in the third and subsequent data. Is sent.

  When the video processing unit 5 receives the data of FIG. 9, the video processing unit 5 generates undisplayed characters of the currently displayed song list based on the received data, generates a song list including all the characters, and displays the display unit 9. To display. In the data of FIG. 9, since the display start position is 51 which is the head position of the undisplayed character, the characters included in the data of FIG. 9 are included in the song list from the position indicated by the number 51. As a result, a one-page song list on which all characters shown in FIG. 4 are displayed is displayed.

  On the other hand, if there is no undisplayed character in the currently displayed one-page song list (NO in S20), the process is terminated.

  As described above, when the continuous operation of the page advance button is completed, all characters of the song list on one page are displayed. Therefore, when the user ends the continuous operation of the page advance button, all characters of the song list are displayed. Can see.

  Next, another preferred embodiment of the present invention will be described. When the number of display characters is determined to be 30 when the song list of FIG. 4 is displayed, the song names displayed in the song list are all the same (“The”) as shown in FIG. When looking at the song list, it is not possible to determine which song name it is. Therefore, in this example, characters are not displayed in the order shown in FIG. 3 according to the determined number of display characters, but characters are displayed in the order of the numbers shown in FIG. That is, the first song name and the last song name are preferentially displayed in the song list on one page, and then all the characters are displayed in order from the song name outside the song list. For example, when the number of characters to be displayed is determined to be 30 when displaying the song list of FIG. 4, as shown in FIG. Characters, 5 characters before the 9th line are displayed. Therefore, even when the determined number of display characters is small and the names of the songs are all the same when the song names are displayed evenly from the first character as shown in FIG. 7, they are displayed as shown in FIG. Thus, the first and last song names in the one-page song list can be completely identified. Therefore, the user can easily determine whether or not the page advance button should be further operated or whether it is not necessary to operate the page advance button again by viewing the music list.

  Next, still another preferred embodiment of the present invention will be described. The display pattern shown in FIG. 3 is pattern A (first display format), and the display pattern shown in FIG. 12 is pattern B (second display format). In the present embodiment, basically, a pattern A is used to generate and display a one-page song list. However, when all song names in the one-page song list are the same as shown in FIG. Use to generate and display a one-page song list.

  FIG. 14 is a flowchart showing the operation of the present embodiment. The same processes as those in FIG. When the number of characters to be displayed is determined based on the operation interval of the page advance button in S15, the control unit 2 determines whether or not the song names are all the same when the song list is displayed with the pattern A based on the number of displayed characters. Judgment is made (S31).

  If it is determined that at least one of the song names is different (NO in S31), the control unit 2 selects the pattern A (S32). As shown in FIG. 15, the control unit 2 includes information about the pattern in the data transmitted to the video processing unit 5 (indicating that the second “A” from the left is the pattern A). When the video processing unit 5 receives the data from the control unit 2, the video processing unit 5 generates a one-page song list using the pattern A and displays it on the display unit 9 (S16).

  On the other hand, if it is determined that the song names are all the same (YES in S31), the control unit 2 selects the pattern B (S33). As shown in FIG. 16, the control unit 2 includes information on the pattern in the data to be transmitted to the video processing unit 5 (indicating that the second “B” from the left is the pattern B). When the video processing unit 5 receives the data from the control unit 2, the video processing unit 5 generates a one-page song list using the pattern B and displays it on the display unit 9 (S16).

  As described above, in the present embodiment, as a general rule, the pattern A is used to generate and display a one-page song list that includes only the number of displayed characters. However, if the pattern A is used, the song names are all the same. Only in such a case, it is possible to generate and display a song list including characters of only the number of display characters using the pattern B.

  Next, still another preferred embodiment of the present invention will be described. The display pattern shown in FIG. 3 is pattern A (first display format), and the display pattern shown in FIG. 12 is pattern B (second display format). In this embodiment, basically, the pattern A is used to generate and display a one-page song list, but when the number of characters displayed in the one-page song list is a predetermined number (for example, 30) or less, the pattern B is displayed. Use to generate and display a one-page song list.

  FIG. 17 is a flowchart showing the operation of the present embodiment. The same processes as those in FIG. When the number of displayed characters is determined based on the operation interval of the page advance button in S15, the control unit 2 determines whether or not the number of displayed characters is equal to or less than a predetermined number (S41).

  If it is determined that the number of displayed characters is larger than the predetermined number (NO in S41), the control unit 2 selects the pattern A (S42). As shown in FIG. 15, the control unit 2 includes information about the pattern in the data transmitted to the video processing unit 5 (indicating that the second “A” from the left is the pattern A). When the video processing unit 5 receives the data from the control unit 2, the video processing unit 5 generates a one-page song list using the pattern A and displays it on the display unit 9 (S16).

  On the other hand, when it is determined that the number of display characters is equal to or less than the predetermined number (YES in S41), the control unit 2 selects the pattern B (S43). As shown in FIG. 16, the control unit 2 includes information on the pattern in the data to be transmitted to the video processing unit 5 (indicating that the second “B” from the left is the pattern B). When the video processing unit 5 receives the data from the control unit 2, the video processing unit 5 generates a one-page song list using the pattern B and displays it on the display unit 9 (S16).

  As described above, in this embodiment, as a general rule, the pattern A is used to generate and display a one-page song list including characters of only the number of display characters, but only when the number of display characters is a predetermined number or less Using B, it is possible to generate and display a music list including characters of only the number of display characters.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment. For example, the present invention can be applied to a client device (playback device), a controller, or the like that can be connected to a server that stores content and a content information DB via a network. That is, it is not necessary for the content information display device of the present invention itself to store the content and the content information DB, and the content information display device of the present invention itself does not have to have a function of reproducing the content. That is, the content information display device of the present invention only needs to have a function of displaying content information. The present invention may be provided in the form of a computer program for operating the content information display device described above, a recording medium recording the computer program, or a content information display method.

  The present invention can be suitably applied to a playback apparatus.

1 playback device 2 control unit 3 memory 4 HDD
5 Video processing unit 6 Playback unit 7 Amplification unit 8 Operation unit 9 Display unit

Claims (5)

Display means for displaying on a display device a content list for one page including content information of a predetermined number of pieces of content information of a plurality of contents;
An elapsed time calculating means for calculating an elapsed time from the input of the previous page advance instruction to the input of the current page advance instruction when a page advance instruction for displaying a content list of the next page is input by a user operation;
Character number determination means for determining the number of display characters in the content list for one page based on the calculated elapsed time;
Content list generating means for generating a content list for one page including the determined number of display characters,
A content information display device, wherein the display unit causes the display device to display a content list for one page including the determined number of display characters generated by the content list generation unit.   The content information display device according to claim 1, wherein the number-of-characters determining unit determines the number of display characters in the content list for one page so that the number of display characters decreases as the calculated elapsed time is shorter. If the next page advance instruction is not input even after a predetermined time has elapsed since the previous page advance instruction is input, the content list generating means is for one page including all characters in the currently displayed content list. Generate a content list,
The content information display device according to claim 1, wherein the display unit causes the display device to display a content list for one page including all characters generated by the content list generation unit. The content list generation means generates a content list for one page including characters of the determined number of display characters using the first display format or the second display format;
If the content list generation means generates a content list for one page including the determined number of display characters using the first display format, is all the content information displayed the same? A determination means for determining whether or not,
When it is determined that at least one of the displayed content information is different, the content list generation unit determines the display format when generating the content list for one page as the first display format, and all displayed When the content information is determined to be the same, the content list generation unit further includes a display format determination unit that determines the display format when generating the content list for one page as the second display format. The content information display apparatus in any one of Claims 1-3.   The content information display program which makes a computer perform each means of the content information display apparatus in any one of Claims 1-4.

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