JP2007094804A - List display device, list display method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve operability when retrieving desired data from data displayed in a list without providing any new key. <P>SOLUTION: An operation key 30 is configured of multi-stage tact keys for performing the stepwise depressing operation input of a user. When an upper key 31 and a lower key 32 are slightly depressed, a CPU 18 successively selects item data on a list displayed at a display part 22 one by one, and discriminately displays the pertinent item data by pointing a cursor to the selected item data. When an upper key 31 and a lower key 32 are deeply depressed, the CPU 18 compares the leading characters of item data adjacent to each other on the list. Then, when the leading characters are different, it is detected that the classification of the character has been changed, and the cursor is pointed to the changed item data, so that the item data can be discriminately displayed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a list display device and a list display method for displaying a list of grouped item data, and a program for causing a computer to realize the list display function.

  In recent years, electronic devices typified by audio players tend to be downsized. In addition, the number of operation keys is reduced in order to realize an intuitive and easy operation and to secure a display area. For example, in a portable audio player, by providing a menu key, up / down keys, a playback key, an enter key, and a return key, various settings, selection of music, playback, fast forward, rewind, skip, etc. Enable operation.

  As a storage medium of the audio player, a semiconductor memory or a HDD (Hard Disk Drive) is used. As the development of the semiconductor memory and the HDD progresses, the storage capacity increases, and the HDD reaches several tens of GB. It has become large capacity. For this reason, the number of music (contents) that can be stored in the HDD is in the thousands to tens of thousands.

As described above, since the number of storable songs is increasing, when the list of track names (items) for each song is displayed, the number of lists becomes enormous. For this reason, a technique has been devised to improve operability when searching for song attribute information such as the track name. As an example, when the numeric keypad is pressed during scroll display, A technique for jumping and displaying data (number of items) corresponding to a ratio obtained by multiplying a number by 10 is known (for example, see Patent Document 1). By using this method, for example, when the numeric keypad “3” is pressed, 30% of data from the top of the list display is jumped and displayed.
JP 2003-167507 A

  However, in the technique of Patent Document 1, if the total number of items displayed in a list changes, the number of jumping items also changes. In addition, since the position of the jump item is determined as a percentage of the total number of items, the user must remember where the item is located in a huge list in order to search for the desired item. It must be realistic.

  In addition, the order in which items such as song titles are displayed is generally in alphabetical order, Japanese alphabetical order, and ascending order of character codes. The initial letters are numbers, English letters, kana characters (Hiragana, Katakana), Often arranged in the order of kanji. Therefore, the user has to move (scroll) the list displayed in the list to search for a Japanese song name, and the operability is poor.

  For this reason, there are known methods of moving the cursor for selecting an item at a high speed or turning the page when the up / down key is pressed for a certain period of time (for example, 1 second). The operation response falls because it has to wait for the time to do. In addition, since the user performs a search while following the list display, it is difficult to find a desired item when the cursor moves at high speed.

  In addition, there is a method of providing a page-up key and a page-down key in addition to the up and down keys, and performing a page feed. However, as described above, it is difficult to increase the number of keys in an electronic device whose size is being reduced. In addition, there is a known method of operating the menu key to change the function of the up / down key to the page feed function. However, the menu key must be pressed once before the up / down key is pressed. It got worse.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to operate when searching for desired data from the displayed data without providing a new key. Is to improve.

In order to solve the above problems, the list display device according to claim 1 is:
Display means for displaying a list of a plurality of item data;
An operation unit that allows stepwise input operations;
Selection means for selecting item data changed to item data belonging to different classifications from among the plurality of item data displayed in a list according to the operation stage of the input operation;
Identification display means for identifying and displaying item data selected by the selection means among the plurality of item data displayed in a list;
It is characterized by having.

The invention according to claim 2 is the invention according to claim 1,
The operation unit includes a multi-stage tact key that allows a user to perform stepwise pressing operations.

The invention according to claim 3 is the invention according to claim 1 or 2,
The identification display means includes
When the operation unit is in the first operation stage, the item data listed in the display means is sequentially selected and displayed one by one,
When it is the second operation stage, the item data selected by the selection means among the item data listed on the display means is identified and displayed;
It is characterized by that.

The invention according to claim 4 is the invention according to any one of claims 1 to 3,
The selection means selects item data changed to item data belonging to different character types from among the plurality of item data displayed in the list,
The identification display means identifies and displays the selected item data.

The invention according to claim 5 is the invention according to any one of claims 1 to 4,
The selection means selects item data changed to item data belonging to a different category from the plurality of item data displayed in the list,
The identification display means identifies and displays the selected item data.

The invention according to claim 6 is the invention according to any one of claims 1 to 5,
The list display device is a portable electronic device,
It further comprises storage means for storing a plurality of data,
The display means displays the attribute data for each of the plurality of data as a list as item data.

The list display method according to claim 7 is:
A display step for displaying a list of a plurality of item data;
A selection step of selecting item data changed to item data belonging to different classifications among the plurality of item data displayed in a list according to the operation stage of the input operation;
An identification display step for identifying and displaying the item data selected in the selection step among the plurality of item data displayed in a list;
It is characterized by including.

The program according to claim 8 is stored in a computer.
A display function that displays a list of multiple item data,
A selection function for selecting item data changed to item data belonging to different classifications among the plurality of item data displayed in a list according to the operation stage of the input operation;
An identification display function for identifying and displaying item data selected by the selection function among the plurality of item data displayed in a list;
It is characterized by realizing.

  According to the present invention, item data whose classification has changed among the item data displayed in a list is identified and displayed according to the operation stage of the operation unit capable of stepwise input operation. For this reason, when the user performs a step-by-step input operation, the item data is identified and displayed in order each time the character type or category as the item data classification changes, so that item data belonging to the same classification can be easily searched. At the same time, it is not necessary to press the operation unit for a long time, so that the operation response is improved. Further, since the operation unit can perform stepwise input operations, it is not necessary to provide a new operation key for realizing a display function for identifying and displaying item data whose classification changes. Therefore, it is possible to improve the operability when searching for desired data from the displayed data without providing a new operation key.

  Hereinafter, an embodiment in which the wrist device of the present invention is applied to a portable audio player will be described with reference to FIGS.

  FIG. 1 is a front view showing an example of the appearance of the audio player 1. As shown in FIG. 1, the housing 2 of the audio player 1 is provided with a display unit 22 for displaying various information and an operation unit 3 for receiving input of various operations by the user.

  The audio player 1 stores a large amount of audio data for each piece of music, reproduces the audio data as audio, and displays attribute data (item data) such as a genre name, artist name, album name, and track name on the display unit 22. Display a list.

  For example, when a desired genre name is selected from the genre names of music pieces, a list of artist names classified in the genre is displayed as shown in FIG. The user operates the up and down keys 31 and 32 (see FIG. 3) of the operation unit 3 to move the cursor 200 displayed on the artist screen up and down to select the artist name. Then, when the determination key (for example, the right key 34 in FIG. 3) is pressed to confirm the selection of the artist name, a list of album names of the artist is displayed.

  Attribute data such as genre name, artist name, album name, and track name are stored and managed in a hierarchy, and the user selects the attribute data sequentially, so that the lower layer attribute data is displayed in a list. It will be done.

  The operation unit 3 includes five operation keys 30, and these operation keys 30 are arranged in a cross shape as shown in FIG. Each operation key 30 is composed of a multi-stage tact key having an operation state that rises and falls in stages according to the pressing force of the user's pressing operation. In the present embodiment, the user operates the audio player 1 by two pressing operations, that is, a shallow pressing operation in which the operation key 30 is pressed lightly (lightly) and a deep pressing operation in which the operation key 30 is pressed deeply (strongly).

  2A and 2B are diagrams illustrating a schematic configuration of the operation key 30. FIG. 2A is a side sectional view and FIG. 2B is a bottom view. As shown in FIGS. 2A and 2B, the operation key 30 includes a standing portion 23 standing from the substrate 4 in the housing 2, and a user supported by the standing portion 23. The pressing portion 24 which is bent by being pressed by a finger or the like, and extends downward from the lower surface of the pressing portion 24, and contacts and separates from the contact group 41 on the substrate 4 in conjunction with the bending of the pressing portion 24. An approaching / separating portion 25 is provided.

  The contact / separation portion 25 is formed of an elastic body such as rubber so that it has a cylindrical shape and a lower portion thereof is spherical. A conductor is coated on the lower surface of the contact / separation portion 25 to form a conductor layer 26.

  FIG. 2C is a top view showing an example of an arrangement pattern of the contact group 41. As shown in FIG. 2A, the contact group 41 includes a dotted IN contact 42 and an OUT contact 43 formed in multiple arcs around the IN contact 42.

  When the pressing unit 24 is pressed by the user's pressing operation, the operation key 30 operates as follows. First, when the pressing part 24 is pressed and bent, the conductor layer 26 of the contact / separation part 25 comes into contact with the substrate 4 by the bending, and then the contact / separation part 25 contracts and the contact area gradually increases. At this time, the operation unit 3 is in a shallow pressed state in which the pressing unit 24 is shallow, and when the conductor layer 26 of the contact / separation unit 25 comes into contact with the IN contact 42 and the innermost OUT contact 431, the voltage value A Outputs a value operation signal.

  Then, the pressing force against the pressing portion 24 becomes strong, and the conductor layer 26 comes into contact with the IN contact 42, the innermost OUT contact 431 and the other OUT contacts 432. At this time, the operation unit 3 is in a deep-pressed state in which the pressing unit 24 is deeply submerged, and outputs an operation signal having a B value larger than the voltage value A due to the conduction. That is, the operation key 30 outputs a voltage value A value operation signal when the user performs a shallow press operation, and outputs a voltage value B value operation signal when the user presses the user deeply. An operation signal corresponding to the pressing operation is output. The configuration of the operation unit 3 capable of stepwise input operation is not limited to the multistage tact key of FIG. 2 as long as it can perform at least two steps of input operation, and a known technique can be appropriately employed. .

  Further, in the following description, the operation key 30 arranged on the upper side in FIG. 1 is the upper key 31, the operation key 30 arranged on the lower side is the lower key 32, the operation key 30 arranged on the left side is the left key 33, The operation key 30 arranged on the right side is called a right key 34, and the operation key 30 arranged in the center is called a center key 35.

  The upper key 31 and the lower key 32 function as keys for moving the cursor 200 shown in FIG. 8 in the vertical direction. The right key 34 is a key for confirming selection of the item data selected by the cursor 200, and the left key. Reference numeral 33 denotes a key for returning to the previous screen display, and the center key 35 functions as a key for starting reproduction of the selected track.

  In particular, the up and down keys 31 and 32 have two functions when the cursor 200 is moved in this embodiment. Specifically, it functions as a scroll key for moving the cursor 200 in the list one by one in the up / down direction when the up / down keys 31 and 32 are pressed lightly, and the character type is different when pressed deeply. It functions as a jump key that causes the cursor 200 to jump to the item data. Thus, by associating the functions as the scroll key and the jump key with the two-stage input operation of the operation key 30, it is not necessary to provide a new operation key for the jump key. An implementation method as a jump key will be described later. Also,

  FIG. 3 is a block diagram illustrating an example of a functional configuration of the audio player 1. As shown in FIG. 3, the audio player 1 is provided with a control unit 10 that controls each functional unit, and the storage unit 21, the display unit 22, and the operation unit 3 are electrically connected to the control unit 10. Connected.

  In the control unit 10, the interrupt controller 11, the communication unit 12, the sound processing unit 13, the D / A converter 14, the A / D converter 15, the ROM 16, the RAM 17, and the CPU 18 are electrically connected. Configured.

  The interrupt controller 11 is connected so as to mediate each operation key 30 of the operation unit 3 and the CPU 18. When detecting that an operation signal is output from the operation unit 3, the interrupt controller 11 outputs the operation signal to the CPU 18. Interrupt the process being executed.

  The communication unit 12 is an interface that performs data communication with an external device such as a personal computer that manages audio data, and is configured by a USB or the like, for example. The communication unit 12 communicates with the external device by being connected to the external device via a cable, and outputs a signal obtained by communication to the CPU 18 and the storage unit 21. Specifically, audio data managed by the external device is downloaded and transferred to the storage unit 21 for storage, or a control signal from the external device is transferred to the CPU 18.

  The audio processing unit 13 is a functional unit that expands / compresses audio data based on the control of the CPU 18, and is configured by, for example, a DSP (Digital Signal Processor). Specifically, the audio data stored in the storage unit 21 is expanded, the audio data is reproduced as a digital signal, and output to the D / A converter 14. The audio data input via the input terminal 20 is compressed in a predetermined compression format and stored in the storage unit 21.

  The D / A converter 14 converts the audio data reproduced by the audio processing unit 13 into an analog signal and outputs the analog signal via the output terminal 19, so that the audio from a speaker or headphones connected to the output terminal 19 is obtained. Audio is output from an output device (not shown).

  The A / D converter 15 converts an analog audio signal of audio input from an external audio reproduction device such as a CD player, an MD player, or a microphone via the input terminal 20 into digital data, and sends it to the audio processing unit 13. Output.

  The RAM 17 is a memory area that temporarily stores and holds various programs executed by the CPU 18 and data related to the execution of these programs. The ROM 16 stores various programs. Specifically, the ROM 16 stores initial programs, application programs, and the like for performing various initial settings, hardware inspections, loading of necessary programs, and the like.

  The CPU 18 performs overall management and control of the audio player 1 by inputting / outputting data between the functional units of the audio player 1 and giving instructions to the functional units. Specifically, a program stored in the ROM 16 is read according to an operation signal input from the operation unit 3, and processing is executed according to the program. Then, display data for displaying the processing result is output to the display unit 22, and a display screen according to the display data is displayed on the display unit 22.

  The storage unit 21 is configured by an HDD, a semiconductor memory, or the like, and stores audio data for each song and attribute data (for example, genre name, artist name, album name, etc.) of the audio data in association with each other. This audio data is audio data compressed based on an audio compression format such as MP3 (MPEG Audio Layer-3) format or AAC (Advanced Audio Coding), for example.

  The storage unit 21 also stores list data for displaying a list of genre names, artist names, album names, and track names. The list data is generated by the CPU 18 based on the attribute data attached to the audio data when the audio data is downloaded from the external device or the audio playback device, or the list data generated in advance by the external device together with the audio data. to download.

FIG. 4 shows an example of the data structure of the list data 210 used for displaying a list of artist names. The list data 210 is one of the attribute data of the voice data, and the artist names are sorted in character order such as alphabetical order of alphabetical characters, alphabetical order of kana characters (Hiragana and Katakana), and alphabetical order of kanji characters. It is a data table sorted and stored in advance.
As the character code of the kanji, when arranged in ascending order of the character code, a character code arranged in the order of the Japanese syllabary of the kanji reading is preferable, and a JIS code, a shift JIS code, or the like is applicable.

  For example, as shown in FIG. 4, the item data of item numbers 1 to 4 have an artist name with an initial “A (a)”, and the item data of item numbers 5 to 9 has an initial of “B (b)”. Is the artist name. In addition, the item data of item number 24 has the initial “A”, and the item data of item number 25 “E”. The initial of the item data with the item number 28 is “U” with the JIS code “3127”, and the initial of the item data with the item number “29” is “Shi” with the JIS code “4447”. As described above, the list data 210 is previously sorted in alphabetical order, alphabetical order, and character code order, so that the item data is grouped and stored in advance for each character type of the initial character.

  The display unit 22 is a display device that displays various screens based on display data input from the CPU 18, and is configured by an LCD (Liquid Crystal Display), an ELD (Electro Luminescence Display), or the like.

  When displaying the artist screen, the CPU 18 reads the list data 210 stored in the storage unit 21 and displays the item data as a list on the display unit 22 in the stored order, whereby the list list in FIG. 202 is displayed on the display unit 22. At the time of this list display, item data of the number of items (for example, 9 items) that can be displayed on the display unit 22 is displayed, but the list display is scrolled up and down based on the operation of the up and down keys 31 and 32 by the user. To update the display. Further, by displaying the cursor 200, the item data where the cursor 200 is located is identified and displayed as a selected state. For example, in FIG. 8A, when the artist name “ADs” is selected by the cursor 200 and the user presses the right key 34 as it is, a list of album names corresponding to the artist “ADs” is displayed. The

  Next, specific operations of the audio player 1 will be described with reference to the flowcharts of FIGS.

  First, when detecting an operation signal output from the operation unit 3 via the interrupt controller 11, the CPU 18 starts processing according to the flowchart shown in FIG. Then, at the time of detection, a list is displayed on the display unit 22, and it is determined whether or not the item data in the list is in a selected state (step S1).

  When the CPU 18 determines that the selected state is not selected (step S1; No), the CPU 18 executes a predetermined event corresponding to the operation signal from the operation unit 3 (step S55) and determines that the selected state is selected (step S55). S1; Yes), the item number of the item data displayed at the current position of the cursor 200 is stored in the RAM 17 as the pointer P (step S3). By this pointer P, item data in the list data is selected. After the process of step S3, the CPU 18 determines the operation stage of the input operation based on the operation signal output from the operation unit 3 and which key of the operation key 30 is pressed lightly or deeply by the user. Process according to the result.

  First, a case where the lower key 32 and the upper key 31 are pressed lightly will be described. First, when the CPU 18 determines that the down key 32 is pressed lightly based on the operation signal from the operation unit 3 (step S43; Yes), the item number of the pointer P is the last item number of the list data. It is determined whether or not they are different (step S45). At this time, when it is determined that they are the same (step S45; No), the process proceeds to step S17, and the list of list data is displayed by aligning the cursor 200 with the item data of the pointer P. For this reason, the item data selected by the cursor 200 is not different from that in step S1.

  When it is determined that the item number of the pointer P is different from the last item number of the list data (step S45; Yes), the pointer P is updated with the item number immediately after the item number of the pointer P, The process proceeds to step S17. For this reason, the cursor 200 moves from the item data selected in step S1 to the next item data.

  On the other hand, if the CPU 18 determines based on the operation signal from the operation unit 3 that the up key 31 has been pressed lightly (step S49; Yes), does the item number of the pointer P differ from the top item number of the list data? It is determined whether or not (step S51), and when it is determined that they are the same (step S51; No), the process proceeds to step S17.

  If it is determined that the item number of the pointer P is different from the head item number of the list data (step S51; Yes), the pointer P is updated with the item number immediately before the item number of the pointer P, and step S17. Move on to processing. For this reason, the cursor 200 moves from the item data selected in step S1 to the item data one level higher. That is, by pressing the upper key 31 and the lower key 32 lightly, a function as a scroll key for selecting the artist name one by one up and down on the list 202 displayed as shown in FIG. 8A is realized. Is done.

  Next, a case where the lower key 32 is pressed deeply will be described. First, when it is determined that the down key 32 is pressed down deeply based on the operation signal from the operation unit 3 (step S5; Yes), the CPU 18 acquires the initial of the item data pointed to by the pointer P from the list data. And stored in the buffer A of the RAM 17 (step S7).

  Then, it is determined whether or not the item number of the pointer P is different from the last item number of the list data (step S9). At this time, when it is determined that they are the same (step S9; No), the process proceeds to step S17, but when it is determined that they are different (step S9; Yes), the pointer P is moved to the next item number. Update (step S11), the initials of the item data pointed to by the updated pointer P are obtained from the list data and stored in the buffer B of the RAM 17 (step S13).

  The CPU 18 compares the characters in the buffer A and the buffer B, that is, the initial characters of the adjacent item data (step S15). This character comparison is performed according to the flowcharts of FIGS. First, the characters in the buffers A and B are normalized (step S100).

  Specifically, when the character in the buffer is an alphabet (step S200; Yes), the alphabet is converted into a full-width character and a capital letter (steps S202 and S204). If the character is a hiragana character (step S206; Yes), it is converted to a character from which the dakuten and semi-dakuten of the character in the buffer are removed (step S208), and further converted to a capital letter (step S210). Then, for example, when the character in the buffer is “fu”, it is converted to the upper-stage character on the consonant in the fifty-sound so that it is replaced with the upper-stage “ha” in the C line having the same consonant. (Step S212).

  If the buffer character is katakana (step S214; Yes), the buffer character is converted to full-width and hiragana (steps S216 and S218). If the character is kanji (step S220; Yes), The kanji is converted into a JIS code, the initial of the JIS code is read (step S222), and the process proceeds to step S208.

  For this reason, by normalizing the characters in the buffer, all alphabetic characters are converted to full-width and capital letters, and hiragana, katakana and kanji are 'a', 'ka', 'sa', 'ta', ' It is converted to the letter “A” in a row.

  Then, the CPU 18 compares the characters of the two buffers that have been normalized (step S102), and if they match, returns the match (1) to the process of the flowchart of FIG. 5 (step S104), and does not match. In this case, a mismatch (0) is returned (step S106).

  Returning to the flowchart of FIG. 5, the CPU 18 compares the characters in the buffer A and the buffer B. If they match (step S15; No), the process proceeds to step S7, and the loop processing of steps S7 to S15 is repeated. If the characters of the buffer A and the buffer B do not match, the classification to which each adjacent item data belongs, that is, the character type of the initial character is changed, and the process proceeds to step S17, and the item data selected by the pointer P is changed. Move the cursor 200.

  For example, when the down key 32 is pressed down while the item data “ADs” is selected with the cursor 200 on the list 202 in FIG. 8A, the CPU 18 first displays the item of the display position of the cursor 200. The item number “1” of the data “ADs” is acquired and stored in the pointer P, and the initial “A” of the item data is acquired in the buffer A. Next, the pointer P is updated to “2”, which is the next item number, and the initial letter “A” of the item data “Amanda Project” of the item number “2” of the list data 210 is acquired in the buffer B.

  At this time, buffer A and buffer B match. Therefore, the CPU 18 next acquires the initial “A” of the item data “Amanda Project” pointed to by the pointer P in the buffer A and the initial “A” of the next item data “Art break” in the buffer B. Compare. Thus, when the characters in the buffers A and B match, the two item data to be compared are shifted one by one in the list data.

  Then, the initial “A” of the item data “Art link” of the item number “4” is acquired in the buffer B, the pointer P is updated to “5”, and the initial “B” of the subsequent item data “Bs” is acquired. Is obtained in the buffer B, these characters do not match, so the CPU 18 exits the loop process and proceeds to step S17. At this time, since the pointer P points to the item data “Bs”, the item data is selected with the cursor 200 and displayed as a list as shown in FIG. When the user continues to press the down key 32 deeply, the cursor 200 is set to the head of the item data whose initial is “C”, and the display of the list 202 in FIG. ) List display 208 is switched.

  That is, when the down key 32 is pressed deeply, the cursor 200 is sequentially moved to item data in which the character type of the initial character as the classification to which the item data belongs is changed among the series of item data. A function as a jump key for jumping is realized.

  Next, a case where the upper key 31 is pressed deeply will be described. First, when the CPU 18 determines that the down key 32 has been pressed down based on an operation signal from the operation unit 3 (step S19; Yes), it acquires the initials of the item data pointed to by the pointer P from the list data. And stored in the buffer A of the RAM 17 (step S21).

  Then, it is determined whether or not the item number of the pointer P is different from the top item number of the list data (step S23). If it is determined that they are the same (step S23; No), the process proceeds to step S17. However, if it is determined that they are different (step S23; Yes), the item number before the item number of the pointer P is updated (step S25), and the initials of the item data pointed to by the updated pointer P are listed. Obtained from the data and stored in the buffer B of the RAM 17 (step S27).

  The CPU 18 compares the characters in the buffer A and the buffer B (step S29). If they match (step S29; No), the CPU 18 proceeds to step S21 and repeats the loop processing of steps S21 to S29, thereby comparing the characters. The two item data are shifted one by one in the list data.

  For example, in FIG. 8C, when the “Up” key 31 is pressed down with “Cloud” selected by the cursor 200, the CPU 18 first stores the item number “11” in the pointer P, "C" is obtained in the buffer A. Next, the pointer P is updated to “10”, and the initial letter “C” of the item data “Chemist” of the item number “10” of the list data 210 is acquired in the buffer B.

  At this time, buffer A and buffer B match. Therefore, the CPU 18 next sets the initial “C” of the item data “Chemist” pointed to by the pointer P in the buffer A and the initial “B” of the previous item data “Blue Spring Field” in the buffer B. Get and compare. At this time, since the buffer A and the buffer B are different, the CPU 18 exits the loop process of steps S21 to S29, assuming that the character type of the initial character of the item data has changed.

  However, at this time, the pointer P is “9” and indicates the last item data among the item data whose initial is “B”. Therefore, the processes in steps S31 to S41 are performed so that the pointer P points to the first item data among the item data having the initial “B”.

  Specifically, first, the initial letter of the item data pointed to by the pointer P is stored in the buffer B, and it is determined whether or not the pointer P is the same as the top item number of the list data (step S33). If it is determined that they are not the same (step S33; Yes), the item number is updated with the item number immediately before the item number of the pointer P (step S35), and the initial of the item data pointed to by the updated pointer P Is obtained from the list data and stored in the buffer C of the RAM 17 (step S37).

  The CPU 18 compares the characters in the buffer B and the buffer C (step S39). If they match (step S39; No), the CPU 18 proceeds to step S31 and repeats the loop processing of steps S21 to S29. On the other hand, if they do not match (step S39; Yes), the item number of the pointer P is updated with the next item number, assuming that the character type of the initial character for each adjacent item data has changed (step S41). ), The process proceeds to step S17.

  Through the processing of steps S31 to S39, the initials of the item data in the list data 210 are sequentially compared, the pointer P is set to “5”, and the initial “B” of the item data “Bs” is stored in the buffer B. When the pointer P is updated to “4” and the initial character “A” of the item data “art link” is stored in the buffer C, a mismatch occurs in the comparison of the buffers.

  Therefore, the CPU 18 proceeds from step S39 to step S41, and updates the pointer P to the next item number, that is, “5”, so that the first item data in the item data with the initial “B” is displayed. The cursor 200 is set to the item data.

  That is, when the upper key 31 is pressed deeply, the jump key is used as a jump key for jumping the cursor 200 to the head of item data in which a character type of an initial character as a classification to which the item data belongs is changed in a series of item data. Function is realized.

  As described above, when the user presses the up and down keys 31 and 32 lightly, the item data in the list is selected one by one with the cursor 200 and the cursor 200 is moved up and down. When is pressed deeply, item data having the same initial alphabet is grouped, and the cursor 200 is moved to the item data at the head of the group and moved.

  Although not shown in the figure, hiragana, katakana, and kanji characters are converted to A-stage characters in the normalization of FIG. 7B, so that when the up and down keys 31 and 32 are pressed down, the hiragana characters are displayed. , Katakana and Kanji in a series of list lists, item data in which the line of Japanese syllabary (A line, K line, S line,...) Changes, that is, the first item data among the item data on the same line. Since the cursor 200 is matched, it is a matter of course that the same action / effect as the jump key in the alphabet can be obtained.

  Further, a case where the item data stored in the list data 210 is displayed as a list and the cursor 200 is moved on the artist screen will be described as an example. However, item data such as a genre name, album name, track name, etc. are displayed as a list. Of course, similar actions and effects can be obtained.

  As described above, according to the present embodiment, when the up and down keys 31 and 32 are pressed down, the cursor 200 jumps to item data in which the initial character type changes in the list. As a result, the cursor 200 moves for each alphabet of the initial letter of the item data, and for each line of the Japanese syllabary when reading aloud, so even if the number of item data becomes enormous, it can be easily searched for each character type. can do. Further, the user can intuitively change the movement method of the cursor 200 by pressing one operation key from shallow press to deep press and from deep press to shallow press. Moreover, since the moving method of the cursor 200 is changed according to the pressing force of the user's pressing operation, the function of the operation key can be switched immediately. Therefore, it is possible to improve the operability when searching for desired data on the list.

  Further, since two functions of a scroll key and a jump key can be realized and two functions can be added to one operation key 30, there is no need to provide a new operation key, and a menu key or the like can be provided. This eliminates the need for an operation procedure for changing the function of the operation key in software. Therefore, the space occupied by the operation keys 30 in the housing 2 can be saved, and the number of operation keys can be reduced, so that a simple operation system can be realized.

  In addition, embodiment mentioned above is an example to which this invention is applied, The applicable range is not restricted to what was mentioned above. For example, when the button is pressed deeply, the cursor 200 may be moved (jumped) from the item data in English to the item data in Japanese, or the position of the cursor 200 is jumped for every Japanese alphabet. It is also possible to make it.

  Further, although each operation key 30 is determined to have two operation steps, the determination operation steps may be increased to three steps and four steps. For example, when determining the operation stage of three stages, according to the three input operations, normal cursor movement (cursor key), cursor movement for each alphabet and Japanese syllabary, cursor for each language such as English and Japanese Three types of cursor movement such as movement can be realized with one operation key.

  Also, whether or not the classification to which the item data belongs has changed is determined based on the character type such as alphabet or hiragana. For example, as shown in FIG. It may be determined whether the category has changed for each item data. FIG. 9 shows list data 212 in which artist names are classified and stored as item data for each category of music genre.

  The CPU 18 displays a list of artist names based on the list data 212. When the up and down keys 31 and 32 are lightly pressed, the cursor 200 on the list is moved one by one, and when the key is deeply pressed, each adjacent item data is detected in the same manner as in the flowchart of FIG. Are compared, and when the category changes, the cursor position is changed. As a result, when pressed deeply, the cursor 200 jumps to the first artist name of the artist name (item data) with a different genre (category).

  The combination of the item data and the category can be changed as appropriate. For example, the category may be an artist name, the item data may be an album name, the category may be an album, and the item data may be a track name.

  In addition, the key arrangement of the operation unit 3 is a cross as shown in FIG. 1, but the key arrangement may be a vertical or horizontal key arrangement, and the cursor is moved by the left and right keys 33 and 34. Alternatively, the item data may be displayed as a list in the horizontal direction of the display unit 22, and the cursor may be moved left and right by the left and right keys 33 and 34.

  In addition, the item data is identified and displayed by moving the cursor 200 to the item data. For example, the item data whose classification has changed is displayed in a list in accordance with the top of the display unit 22 so that the item data is displayed. Identification display may be performed, or identification display may be performed by marking such as an underline.

  Further, the list display device of the present invention has been described as being applied to an audio player. However, the list display device can be applied to other electronic devices as appropriate. For example, a mobile phone, an electronic notebook, a PDA (personal digital) assistant), an electronic dictionary that displays a list of words that match the input characters, and the like, and can be applied to electronic devices that display a list. If it is a portable type or a small electronic device, the usefulness on the space using a multistage tact key will also become high.

An example of the front view showing schematic structure of an audio player. (A) is a side sectional view showing a schematic configuration of operation keys, (b) is a bottom view, and (c) is an example of a top view showing an example of an arrangement pattern of contact groups. The block diagram which shows an example of a function structure of an audio player. The figure which shows an example of the data structure of list data. The 1st flowchart for demonstrating the specific operation | movement of an audio player. The 2nd flowchart for demonstrating the specific operation | movement of an audio player. The 3rd flowchart for demonstrating the specific operation | movement of an audio player. The figure which shows an example of the screen transition of a display screen. The figure which shows an example of the data structure of the list data in a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Audio player 3 Operation part 10 Control part 11 Interrupt controller 12 Communication part 13 Audio | voice processing part 21 Memory | storage part 22 Display part 23 Standing part 24 Press part 25 Contact / separation part 30 Operation key 31 Up key 32 Down key 33 Left key 34 Right Key 200 Cursor 210 List data

Claims (8)

Display means for displaying a list of a plurality of item data;
An operation unit that allows stepwise input operations;
Selection means for selecting item data changed to item data belonging to different classifications from among the plurality of item data displayed in a list according to the operation stage of the input operation;
Identification display means for identifying and displaying item data selected by the selection means among the plurality of item data displayed in a list;
A list display device comprising:   The list display device according to claim 1, wherein the operation unit includes a multi-stage tact key capable of a stepwise pressing operation. The identification display means includes
When the operation unit is in the first operation stage, the item data listed in the display means is sequentially selected and displayed one by one,
When it is the second operation stage, the item data selected by the selection means among the item data listed on the display means is identified and displayed;
The list display device according to claim 1, wherein the list display device is a display device. The selection means selects item data changed to item data belonging to different character types from among the plurality of item data displayed in the list,
The list display device according to any one of claims 1 to 3, wherein the identification display means identifies and displays the selected item data. The selection means selects item data changed to item data belonging to a different category from the plurality of item data displayed in the list,
The list display device according to claim 1, wherein the identification display unit displays the selected item data in an identification manner. The list display device is a portable electronic device,
It further comprises storage means for storing a plurality of data,
The list display device according to claim 1, wherein the display unit displays a list of attribute data for each of the plurality of data as item data. A display step for displaying a list of a plurality of item data;
A selection step of selecting item data changed to item data belonging to different classifications among the plurality of item data displayed in a list according to the operation stage of the input operation;
An identification display step for identifying and displaying the item data selected in the selection step among the plurality of item data displayed in a list;
The list display method characterized by including. On the computer,
A display function that displays a list of multiple item data,
A selection function for selecting item data changed to item data belonging to different classifications among the plurality of item data displayed in a list according to the operation stage of the input operation;
An identification display function for identifying and displaying item data selected by the selection function among the plurality of item data displayed in a list;
A program to realize

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