JP5223450B2 - Display device, program, and display method - Google Patents

Description

  The present invention relates to a display device that displays a character string, a program that causes a computer to function as the display device, and a display method in the display device.

  Conventionally, as a display device that displays a character string such as a file name, a character string that exceeds the number of characters that can be displayed in each line when the character string is displayed in each line is displayed while scrolling. ing. Also, for character strings that exceed the number of characters that can be displayed in each line, a scroll mark indicating that there is a continuation on the right or left side of the character string is displayed, and a continuation part is displayed by a predetermined operation. (See, for example, Patent Document 1). This document also describes that each MP3 file name “Song Title.MP3” is displayed with the extension “.MP3” deleted. Such a display device is employed in, for example, a recording / playback device that plays back music based on a music file stored in a memory, and displays a menu screen or the like that is used when searching for music to be played back. Used to do.

  FIG. 1 shows an example of such a recording / reproducing apparatus. As shown in the figure, this apparatus is a system microcomputer 11 that controls each part of the apparatus and performs necessary information processing, and a DSP that performs signal processing such as encoding and decoding on input signals based on instructions from the system microcomputer 11. A digital signal processor) 12, a USB controller 13 connected to the DSP 12, a DA converter 14 for converting a digital audio signal from the DSP 12 into an analog signal, an amplifier unit 15 for amplifying the analog audio signal from the DA converter 14, and a system microcomputer 11 is provided with an operation unit 16 for performing an operation to give an instruction to 11, and a display unit 17 for displaying information presented to the user by the system microcomputer 11. A USB memory 18 in which music files are stored is connected to the USB controller 13.

  When displaying the file name or the like, the DSP 12 reads the file name and tag information from the header and footer of the music file stored in the USB memory 18 and stores them in the buffer. The tag information includes information such as a title name, album name, and artist name. Further, based on the file format of the music file, the type of character code in tag information, BOM (byte order mark), the version of tag information, the number of characters, and the like are detected. For example, MP3, WMA, or AAC corresponds to the file format.

  The system microcomputer 11 can acquire the information from the DSP 12 by designating the music file and requesting the file name and tag information. At that time, the file format of the music file, the version of the tag information, the character code type in the tag information, the BOM, the number of characters, the character string, and the like can be acquired. Based on the acquired information, the system microcomputer 11 converts a character string such as a file name or a title name to be displayed on the display unit 17 into a character string in a format that can be displayed on the display unit 17. At that time, characters that cannot be displayed are replaced with “*” or the like. When displaying the converted character string, if the number of characters in the character string exceeds the number of characters that can be displayed in one line on the display unit 17, the character string is scroll-displayed. Thereafter, the character string is displayed from the top by the number of characters that can be displayed in one line.

  FIG. 8 is a flowchart showing processing when displaying a file name in a predetermined line of the display unit 17. Let M be the number of characters that can be displayed in one line of the display unit 17. When the process is started, the system microcomputer 11 waits for the necessity of requesting a file name in step 91. The necessity of this request occurs, for example, when a list of file names for music files stored in the USB memory 18 is displayed on the display unit 17.

  When it is necessary to make a request for a file name, the process proceeds to step 92, and a character code (hereinafter simply referred to as “character”) and the number of characters L constituting the file name are acquired from the DSP 12. Next, based on the acquired character and the number of characters L, the acquired characters are stored in the buffer one character at a time until it is determined in steps 93 to 95 that the storage of characters for the number of characters L has been completed. If it is determined in step 94 that the storage has been completed, the process proceeds to step 96. Meanwhile, if it is determined in step 95 that the buffer is full, the process also proceeds to step 96.

  In step 96, the characters in the buffer are converted into characters that can be displayed on the display unit 17 one by one and copied to the display buffer in steps 96 to 100. That is, first, in step 96, it is determined whether or not each character can be converted into a displayable character. If it is determined that the character is possible, the character is converted in step 97 and stored in the display buffer in step 99. If it is determined that it is not possible, the character is replaced with “*” in step 98 and then stored in the display buffer in step 99. The processing in steps 96 to 99 is performed until it is determined in step 100 that the conversion has been completed for all the characters in the buffer. Note that a null is stored after the last character copied to the display buffer so that the end of the character string is known.

  If it is determined in step 100 that the conversion has been completed, in steps 101 to 113, the character string in the display buffer is scroll-displayed on a predetermined line of the display unit 17. That is, first, in step 101, the display counter N is cleared. This counter functions as a pointer indicating the character string portion to be displayed in the display buffer at each stage of scroll display.

  Next, in step 102, using the value of the display counter N and the number of characters M that can be displayed in one line, the characters from the (N + 1) th to the (N + M) th of the characters stored in the display buffer are displayed in the one line. . Next, in step 103, a display timer is set, and in step 104, the display timer waits for time-up. When the display timer expires, the display counter N is incremented at step 105. Next, in step 106, it is determined whether or not the N + Mth character in the display buffer is null. If it is determined that it is not null, the process returns to step 102. If it is determined to be null, it is the time when the last character in the display buffer has just appeared on the display unit 17, so that the process proceeds to step 107, and a space is added after the last character. Continue scrolling as you go.

  In step 107, the space counter K is cleared. Next, in step 108, using the number M of displayable characters, the display counter N, and the space counter K, K + 1 spaces are combined with the character string from the (N + 1) th character to the (N + M-1-K) th character in the display buffer. To set the string. Next, in step 109, the set character string is displayed in the one line. Next, in step 110, a display timer is set, and in step 111, it waits for the display timer to expire. When the display timer expires, the display counter N and the space counter K are incremented in step 112. Next, in step 113, it is determined whether or not the display counter N has reached the number M of characters that can be displayed. If it is determined that it has not been reached, the process returns to step 108 to continue scrolling with a space added. If it is determined that M has been reached, the process proceeds to step 114, where the first to Mth characters in the display buffer are displayed in the one line, and the process of FIG.

  FIG. 9 shows a state in which the character string “ABCDEFGHIJKLMNOPQRSTUVWXYZ” is displayed on one line of the display unit 17 by the processing of FIG. By the process of the first step 102, “ABCDEFGHIJK” is displayed as shown in FIG. As a result of the process in step 102 for the sixth time, “FGHIJKLMNOP” is displayed as shown in FIG. By the process of step 109 for the sixth time, a character string with six spaces added to “VWXYZ” is displayed as shown in FIG. By the process of the eleventh step 109, a character string consisting of 11 spaces is displayed as shown in FIG. By the processing in step 114, the same display as in FIG. 10A is performed as shown in FIG.

JP 2002-343067 A

  However, as described above, when a character string having a number of characters larger than the number M of characters that can be displayed in one line is scroll-displayed, when the display content is continuously changed by some operation, the scrolling is not in time, and the display content is changed. It may be time-consuming to select a desired action based on this. For example, when scrolling a list of song names in the vertical direction in order to confirm a plurality of song names in a short time, as in the case of music search, all the characters constituting each song name are changed horizontally (the direction of the character string). ) Takes a long time to scroll. Therefore, the scroll display in the direction of the character string is not suitable for such confirmation work.

  In particular, as shown in FIG. 10, when displaying a plurality of file names in which serial numbers are added to similar names, if only 11 characters are displayed from the top, for example, each file cannot be distinguished at all. Therefore, it is necessary to scroll the display. In this case, the file name cannot be distinguished and specified until the last character of the file name is displayed. Therefore, it takes a long time to confirm the file name.

  In addition, although it is conceivable to display one file name on a separate line, in this case, the number of file names that can be displayed on one screen is reduced, which is not preferable.

  An object of the present invention is to make it possible to identify, in one line, a file name composed of a number of characters exceeding the number of characters that can be displayed in one line, in view of such problems of the prior art. It is to provide a technique for displaying.

In order to achieve this object, a display device according to a first aspect of the present invention is a display device including a display unit that displays a predetermined character string, and has a display digit number that is used to display the predetermined character string. When the number of characters of the predetermined character string is large, the number of display digits configured by using a start character string consisting of the first predetermined number of characters in the predetermined character string and an end character string consisting of the last predetermined number of characters. as an indication of optional character strings, have row display of the predetermined character string, the abbreviated character string, which is constructed by combining the start character string and the end character string in a predetermined ellipses, the omitted When displaying the predetermined character string as the character string display, first, the display character number is displayed from the beginning of the predetermined character string, and then the display of the start character string is fixed, and the predetermined character is displayed. Said in the column Scroll display of the character string portion following the start character string is started in the area where the end character string is displayed, and when the scroll display proceeds and the end character string is displayed, the abbreviated character string Is displayed .

The display device according to a second invention is the display device according to the first invention, wherein the abbreviated character string is formed by combining the start character string and the end character string with a predetermined abbreviation symbol, and the display of the start character string While the symbol is fixed, the abbreviation symbol is displayed adjacent to the start character string .

A program according to the third invention is characterized by causing a computer to function as display equipment of the first or second invention.

A display method according to a fourth aspect of the present invention is a display method in a display device having a display unit for displaying a predetermined character string, wherein the predetermined character string is more than the number of display digits used for displaying the predetermined character string. When the number of characters is large, the start character string composed of the first predetermined number of characters and the end character string composed of the last predetermined number of characters in the predetermined character string as a display, have row display of the predetermined character string, the abbreviated character string, which is constructed by combining the start character string and the end character string in a predetermined ellipsis, display of the abbreviated character string When the predetermined character string is displayed, first, the number of display digits from the beginning of the predetermined character string is displayed, and then the display of the start character string is fixed and the start of the predetermined character string is character Is started in the area where the end character string is displayed, and when the scroll display proceeds and the end character string is displayed, the display of the abbreviated character string is displayed. It is characterized by making it the state made .

  According to the present invention, a file name or the like composed of a number of characters exceeding the number of characters that can be displayed in one line can be identified in one line.

  FIG. 1 is a block diagram showing the configuration of an audio playback apparatus according to an embodiment of the present invention. As shown in the figure, this apparatus is a system microcomputer 11 that controls each part of the apparatus and performs necessary information processing, and a DSP that performs signal processing such as encoding and decoding on input signals based on instructions from the system microcomputer 11. A digital signal processor) 12, a USB controller 13 connected to the DSP 12, a DA converter 14 for converting a digital audio signal from the DSP 12 into an analog signal, an amplifier unit 15 for amplifying the analog audio signal from the DA converter 14, and a system microcomputer 11 is provided with an operation unit 16 for performing an operation to give an instruction to 11, and a display unit 17 for displaying information presented to the user by the system microcomputer 11. A speaker 19 that converts the audio signal amplified by the amplifier unit 15 into audio is connected to the amplifier unit 15.

  A USB memory 18 is connected to the USB controller 13. The DSP 12 can write and read data to and from the USB memory 18 via the USB controller 13. The USB memory 18 stores music files in formats such as MP3, WMA, AAC. Each music file is accompanied by tag information such as an album name, a genre name, and an artist name as metadata relating to the music file. The system microcomputer 11 displays a selection item based on the tag information of each music file on the display unit 17 and accepts the selection of the selection item so that the user can search for the music file. The system microcomputer 11 can reproduce music based on the searched music data. At that time, the DSP 12 reads and decodes the music file from the USB memory 18 and supplies the obtained audio signal to the DAC 14. The system microcomputer 11 can also display the file name of the music file in the USB memory 18 on the display unit 17 on the basis of the user's instruction, and accept the process related to the music file.

  When displaying the tag information and file name of the music file, the DSP 12 reads the file name and tag information from the header and footer of the music file stored in the USB memory 18 and stores them in the buffer. Further, based on the file format of the music file, the type of character code in tag information, BOM (byte order mark), the version of tag information, the number of characters, and the like are detected.

  The system microcomputer 11 can acquire the information from the DSP 12 by designating the music file and requesting the file name and tag information. At that time, the file format of the music file, the version of the tag information, the character code type in the tag information, the BOM, the number of characters, the character string, and the like can be acquired. Based on the acquired information, the system microcomputer 11 configures a character string such as a file name or title name to be displayed on the display unit 17 (hereinafter, one file name or title name is configured and displayed on one line). The character string is referred to as “unit character string”) and converted into a unit character string in a displayable format. At that time, characters that cannot be displayed are replaced with “*” or the like. When displaying the converted unit character string, if the number of characters in the unit character string exceeds the number M of characters that can be displayed in one line on the display unit 17, the number of characters is omitted by omitting the middle of the unit character string. The display is performed by an abbreviated character string in which M is M. If the number of characters in the unit character string does not exceed M, the unit character string is displayed as it is. The abbreviated character string is configured by connecting a start character string made up of the first predetermined number of characters in the unit character string and an end character string made up of the last predetermined number of characters with an ellipsis “˜”.

  FIG. 2 shows a display example of an abbreviated character string. In this example, the number M of characters that can be displayed in one line is 11, and the unit character string is “ABCDEFGHIJKLMNOPQRSTUVWXYZ”. In this case, as shown in the figure, the abbreviated character string is obtained by concatenating the start character string “ABCDE” consisting of the first five characters and the end character string “VWXYZ” consisting of the last five characters with the ellipsis “˜”. As a whole, it is constituted as a character string of 11 characters equal to the number M of characters that can be displayed.

  In FIG. 2, the number of characters of the start character string and the number of characters of the end character string are the same. However, for example, when the number M of characters that can be displayed in one line is 11, the start character string is 6 characters. The end character string may be 4 characters, and when the number M of characters that can be displayed in one line is 10, the start character string may be 5 characters and the end character string may be 4 characters.

  FIG. 3 is a flowchart showing a process for displaying one file name as a unit character string. When the process is started, the system microcomputer 11 waits for the necessity of requesting a file name in step 31. The necessity of such a request occurs, for example, when a list of file names for music files stored in the USB memory 18 is displayed on the display unit 17.

  When it is necessary to make a request for a file name, the process proceeds to step 32, and a character code (hereinafter simply referred to as “character”) and the number of characters L constituting the file name are acquired from the DSP 12. Next, based on the acquired character and the number L of characters, in steps 33 to 35, each character is sequentially stored in the buffer. That is, the characters are stored in the buffer one by one until it is determined in step 34 that the storage of the characters corresponding to the number L of characters has been completed. If it is determined in step 34 that the storage has been completed, the process proceeds to step 36. In the meantime, if it is determined in step 35 that the buffer is full, the process also proceeds to step 36.

  In step 36, the characters in the buffer are converted into characters that can be displayed on the display unit 17 one by one in steps 36 to 40. That is, in step 36, it is determined whether or not each character can be converted into a character that can be displayed on the display unit 17. If it is determined that it is possible, code conversion is performed in step 37 and stored in the display buffer in step 39. If it is determined that display is not possible, the character is replaced with “*” in step 38 and stored in the display buffer in step 39. The processing in steps 36 to 39 is performed until it is determined in step 40 that the code conversion for all characters in the buffer has been completed. After the last character stored in the display buffer, null is stored so that it can be seen that the character string is at the end.

  If it is determined in step 40 that the code conversion has been completed, in steps 41 to 49, display based on the characters in the display buffer is performed. That is, first, in step 41, it is determined whether or not the number of characters in the display buffer is less than or equal to M that can be displayed in one line. If it is determined that the number is equal to or less than M, the process proceeds to step 42, and a predetermined number B of characters from the top in the display buffer are stored in the omission buffer as a start character string. Next, in step 43, the ellipsis “˜” is stored in the abbreviation buffer. Next, in steps 44 to 48, the end character string is stored in the omission buffer.

  That is, first, in step 44, a value (B + 1) obtained by adding the number of ellipses 1 to the number of characters B of the starting character string is set in the counter C. Next, in step 45, it is determined whether or not the counter C-th content in the display buffer is null “0”. If it is determined that it is not null, the counter C is incremented in step 46 and the process returns to step 45. If it is determined to be null, the process proceeds to step 47 where the number E of characters in the end character string is subtracted from the counter C to obtain P. Next, in step 48, characters corresponding to the number E of characters in the end character string from the Pth character in the display buffer are stored in the omission counter. As a result, the abbreviated character string is stored in the abbreviated buffer.

  Next, in step 49, the abbreviated character string in the abbreviated buffer is displayed in a predetermined line on the display unit 17. If it is determined in step 41 that the number of characters in the display buffer is less than or equal to M that can be displayed on one line, the M characters from the top in the display buffer are displayed as they are in one line in step 49. Thereby, the display process for one file name is completed.

  According to this, regarding the file name whose number of characters exceeds the number of characters that can be displayed in one line, the contents and the distinction from other file names can be immediately recognized without scrolling display by displaying the abbreviated character string. . In particular, when each file name as shown in FIG. 10 is sorted and displayed by the abbreviated character string, the change in the end character string can be an important element for distinguishing each file name, so this embodiment is effective. is there. However, scroll display may be used supplementarily as follows.

  FIG. 4 shows a display example of an abbreviated character string accompanied by scroll display. In this example, the number M of characters that can be displayed in one line is 11, and the unit character string is “ABCDEFGHIJKLMNOPQRSTUVWXYZ”. In this example, first, “ABCDEFGHIJK” for 11 characters that can be displayed in one line from the top of the unit character string is displayed as shown in FIG. 9A, and then, as shown in FIGS. In addition, the display of the start character string “ABCDE” is fixed, and scroll display is performed in the display area from the seventh column to the eleventh column where the end character string is to be displayed for the character strings after “H”. During this time, the ellipsis “˜” is displayed adjacent to the start character string “ABCDE”. Then, when the end character string “VWXYZ” is displayed as shown in FIG. 4D, the scroll display is terminated and the abbreviated character strings “ABCDE to VWXYZ” are displayed. The scroll display and the display of the abbreviated character string can be performed as in steps 101 to 106 in FIG. 9 and steps 41 to 49 in FIG.

  FIG. 5 shows another display example of the abbreviated character string accompanied by scroll display. In this example, the number M of characters that can be displayed in one line is 11, and the unit character string is “ABCDEFGHIJKLMNOPQRSTUVWXYZ”. In this example, the entire unit character string is scroll-displayed as shown in FIGS. 11A to 13D, and when the scroll display is completed, the abbreviated character string “ABCDE to VWXYZ” is displayed as shown in FIG. Like to do. The scroll display and the display of the abbreviated character string can be performed in the same manner as the processing in steps 101 to 113 in FIG. 9 and the processing in steps 41 to 49 in FIG.

  FIG. 6 shows still another display example of an abbreviated character string accompanied by scroll display. In this example, the number M of characters that can be displayed in one line is 11, and the unit character string is “ABCDEFGHIJKLMNOPQRSTUVWXYZ”. In this example, first, the abbreviated character string “ABCDE to VWXYZ” for the unit character string is displayed as shown in FIG. Next, as shown in FIG. 5B, the display of the end character string “VWXYZ” is fixed, and the scroll display of the unit character string is started in the first to fifth columns, which is the display area of the start character string. To do. During this scroll display, the ellipsis “˜” is displayed adjacent to the end character string “VWXYZ”. Then, as shown in FIG. 5C, when the first character in the display area is the character “O” immediately before the character “P” of the M (= 11) character from the back in the unit character string, Next, as shown in FIG. 4D, the character string portion after “P” in the unit character string is displayed.

  Next, as shown in (e) and (f) of the figure, scroll display is performed for the last 11 characters of the unit character string using all 11 columns. At that time, a space is sequentially added after the character string. When all the columns become spaces as shown in FIG. 6G and scrolling is completed, the abbreviated character strings “ABCDE to VWXYZ” are displayed as shown in FIG.

  In the display of FIG. 6, for example, when each file name as shown in FIG. 10 is displayed by an abbreviated character string as shown in FIG. 7 and one of those file names “Abcde to k — 002” is selected, This can be done for the selected file name. In this case, at the time of selection, the user can immediately determine the selection target based on the abbreviated character string and make a selection, and can check the entire selected file name after selection.

  In addition, this invention is not limited to the above-mentioned embodiment, It can deform | transform and implement suitably. For example, in the above description, the case where the file name is displayed as a unit character string displayed on one line has been described. However, the present invention can be applied not only to the file name but also to a song name described as a folder name or tag information. . For example, "Branden-Music No. 1", "Branden-Music No. 2", "Branden-Music No. 5", etc. It is easy to distinguish, and when music names are sorted and displayed, each music name can be immediately distinguished and selected by changing the end character string.

  In the above description, “˜” is used as an ellipsis, but other ellipsis, for example, “...” May be used instead. Also, “...” may be used for English names, and “˜” may be used for Japanese names.

  In the above description, the case where the recording medium on which the music file displaying the file name is recorded is the USB memory 18, but the recording medium is not limited to this, and is recorded in the memory card, the built-in memory, and the built-in / external HDD. The present invention can also be applied to the case of displaying the file name and the music name of the music that can be reproduced via the network.

It is a block diagram which shows the structure of the audio reproduction apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of a display of the abbreviated character string in the apparatus of FIG. It is a flowchart which shows the display process of the file name in the apparatus of FIG. It is a figure which shows the example of a display of the abbreviated character string accompanying the scroll display in the apparatus of FIG. It is a figure which shows another example of a display of the abbreviated character string accompanying the scroll display in the apparatus of FIG. It is a figure which shows another example of a display of the abbreviated character string accompanying the scroll display in the apparatus of FIG. It is a figure which shows a mode that the file name displayed by the abbreviation character string is selected in the apparatus of FIG. It is a flowchart which shows the display process of the file name which concerns on a prior art example. It is a figure which shows a mode that a character string is displayed by the process of FIG. It is a figure which shows the several file name which added the serial number to the same name.

Explanation of symbols

  11: system microcomputer, 12: DSP, 13: USB controller, 14: DA converter, 15: amplifier unit, 16: operation unit, 17: display unit, 18: USB memory, 19: speaker.

Claims (4)

A display device including a display unit for displaying a predetermined character string,
When the number of characters of the predetermined character string is larger than the number of display digits used to display the predetermined character string, a start character string consisting of the first predetermined number of characters in the predetermined character string, and the last predetermined number of characters as the display of the display digits of the abbreviated character string constructed of a completion string of, we have line display of the predetermined character string,
The abbreviated character string is configured by combining the start character string and the end character string with a predetermined ellipsis,
When displaying the predetermined character string as the display of the abbreviated character string,
First, display the number of display digits from the beginning of the predetermined character string,
Next, the display of the start character string is fixed, and the scroll display of the character string portion subsequent to the start character string in the predetermined character string is started in the area where the end character string is displayed,
The display device is characterized in that when the scroll display proceeds and the end character string is displayed, the abbreviated character string is displayed . The abbreviated character string is configured by combining the start character string and the end character string with a predetermined ellipsis,
Said start while the character display of the fixed columns have been made, the display device according to claim 1, wherein the displaying the ellipsis is adjacent to the start character string. Program for causing a computer to function as a display device according to claim 1 or 2, wherein. A display method in a display device including a display unit for displaying a predetermined character string,
When the number of characters of the predetermined character string is larger than the number of display digits used to display the predetermined character string, a start character string consisting of the first predetermined number of characters in the predetermined character string, and the last predetermined number of characters as the display of the display digits of the abbreviated character string constructed of a completion string of, we have line display of the predetermined character string,
The abbreviated character string is configured by combining the start character string and the end character string with a predetermined ellipsis,
When displaying the predetermined character string as the display of the abbreviated character string,
First, display the number of display digits from the beginning of the predetermined character string,
Next, the display of the start character string is fixed, and the scroll display of the character string portion subsequent to the start character string in the predetermined character string is started in the area where the end character string is displayed,
The display method is characterized in that when the scroll display proceeds and the end character string is displayed, the abbreviated character string is displayed .

Images