JP2007094978A - Display device, display method and display program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scroll display device allowing for reliable selection of a target point without passing by a desired target point, by changing a display area and a character size in the display area during scroll operation. <P>SOLUTION: The scroll display device has a display means for displaying two or more pieces of item data in list form and an operation means for outputting an operation signal, allows the two or more pieces of item data to be scrolled based on the operation signal output by the operation means, and enlarges a display area for the item data during the scrolling. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device, a display method, and a display program.

  In recent years, mobile electronic devices such as mobile phones and audio players have been widely used. These portable electronic devices are becoming lighter and smaller as technology advances. As the weight and size are reduced, the display screen will inevitably become smaller, but the ease of browsing the information displayed on the display screen and the operability are required more than ever. Furthermore, the capacity of a semiconductor memory, a hard disk, or the like built in the device is also dramatically increased. For example, an audio player using a hard disk can store thousands to tens of thousands of audio data. When searching for these by scrolling, for example, even if a scroll search of audio data divided into groups such as genres is performed, a large number of audio data will be scrolled. Is also required.

Recently, a display device that changes a scroll time and a scroll direction according to a character font size and a language to be displayed has been disclosed (see Patent Document 1). According to the display device of Patent Document 1, for example, when the displayed language is Japanese and the sentence is vertically written, the scroll direction is switched to the vertical direction. If the display is in English, the scroll direction is switched to the horizontal direction.
JP-A-10-274952

  However, in the conventional display device, the scroll direction and the scroll time are changed depending on the language and the character font size, but the display area and the character font size cannot be changed. Therefore, when scrolling with the conventional display area size or display character size, depending on the scrolling speed, it is not easy to visually recognize the display item, the target point cannot be selected reliably, and a plurality of operations are often required. There was a problem.

  The present invention has been made in view of the above-described problems, and by changing the display area and the character size in the display area during the scroll operation, the target point can be reliably selected without passing the desired target point. It is to provide a possible scroll display.

  In order to solve the above problems, the invention according to claim 1 is based on display means for displaying a list of a plurality of item data, operation means for outputting operation signals, and operation signals output by the operation means. And a display control means for scrolling the plurality of item data and enlarging the display area of the item data during the scrolling.

  According to a second aspect of the present invention, in the display device according to the first aspect, the display area enlarged by the display control means is a display area of item data to be selected.

  According to a third aspect of the present invention, in the display device according to the first or second aspect, the operation means is a multi-stage tact key capable of outputting a plurality of the operation signals.

  According to a fourth aspect of the present invention, in the display device according to the first or second aspect, the operation means is an optical detection key capable of outputting a plurality of the operation signals.

  According to a fifth aspect of the present invention, in the display device according to any one of the first to fourth aspects, the operation means can perform at least two-stage input operations, and the display control means When the signal is in the first stage, the display area is enlarged by a first enlargement factor, and when the operation signal is in the second stage, the display area is enlarged by a second enlargement factor. It is characterized by.

  According to a sixth aspect of the present invention, in the display device according to the fifth aspect of the present invention, the second magnification is larger than the first magnification.

  A seventh aspect of the present invention is the display device according to any one of the first to sixth aspects, wherein the display control means enlarges the display area and enlarges the character size displayed in the display area. It is characterized by that.

  The invention according to claim 8 is the display device according to any one of claims 1 to 7, wherein the display control means enlarges the display area and increases the number of characters displayed in the display area. It is characterized by.

  The invention according to claim 9 is a display step of displaying a list of a plurality of item data, an operation step of outputting an operation signal, and scrolling the plurality of item data based on the operation signal output by the operation step. And a display control step of enlarging the display area of the item data during the scrolling.

  According to a tenth aspect of the present invention, there is provided a computer for controlling a display device having input means for inputting an operation in multiple stages and display control means for scroll-displaying a plurality of item data. And a function of scrolling the plurality of item data based on the operation signal and enlarging a display area of the item data during the scrolling.

  According to the present invention, it is possible to realize a scroll display device that can reliably select a target point without passing through a desired target point by displaying the display area and the character size in the display area in an enlarged manner during the scroll operation. it can. In addition, by enlarging and displaying the display area, the amount of information that can be displayed in the display area increases, and a detailed search becomes possible. Furthermore, by enlarging the display area and increasing the character size in the display area, the displayed information can be reliably viewed even during scrolling, and reliable search during high-speed scrolling is possible. is there. As a result, even when the display unit is limited in size due to downsizing of the device, visibility during scrolling can be improved. In addition, visibility at the time of scrolling can be improved even at the time of high-speed scrolling corresponding to an increase in storage unit capacity.

  Hereinafter, this embodiment will be described in detail with reference to the drawings.

  FIG. 1 is a front view showing a schematic configuration of a portable audio playback device (hereinafter referred to as an audio player) 1 as a scroll display device of the present invention. As shown in FIG. 1, the audio player 1 includes a housing 2, a display unit 22 disposed on the upper portion of the housing 2 and displaying various information, and a variety of devices disposed on the lower portion of the housing 2. An operation unit 3 is provided as input means for inputting an operation.

  For example, item data such as a genre name, an album name, an artist name, and a track name (song name) for classifying music are displayed on the display unit 22. These item data are stored in a hierarchical manner in the order of genre name, album name, artist name, track name, etc. by storing the artist name by genre, album name by artist, and track name by album. Is done.

  For example, when the user selects a desired genre name on a genre screen on which a list of genre names is displayed, artist names classified into the genre are displayed on the artist screen in a list. When a desired artist name is selected, a list of album names of the artist is displayed (album screen), and when an album name is selected, track names of the album are displayed as a list (track screen). The user selects a desired track name from the track names displayed in a list on the track screen, thereby starting playback of the music on that track.

  The operation unit 3 includes five operation keys 30 constituted by two-step tact keys capable of detecting two-step pressing force by a user's pressing operation, and these operation keys 30 are arranged on a cross as shown in FIG. And provided in the housing 2. The user operates the audio player 1 by two pressing operations of “shallow pressing” for pressing the operation key 30 shallowly (lightly) and “deep pressing” for pressing deeply (strongly).

  FIG. 2 is a diagram showing a schematic configuration of the operation key 30. 2A is a side sectional view, and FIG. 2B is a bottom view. As shown in FIGS. 2A and 2B, the operation key 30 has a standing portion 23 standing from the substrate 4 in the housing 2 and a state supported by the standing portion 23. The pressing portion 24 that 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. A contact / separation portion 25 is provided.

  The contact / separation portion 25 is formed of, for example, an elastic body such as rubber so that it has a cylindrical shape and a lower portion thereof has a spherical shape. A dielectric layer 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 the arrangement pattern of the contact group 41. As shown in FIG. 2, the contact group 41 includes a dotted IN contact 42 and multiple arc-shaped OUT contacts 43 centered on the IN contact 42. Here, when the pressing portion 24 is pressed and bent, the conductor layer 26 of the contact / separation portion 25 comes into contact with the substrate 4 due to the bending, and then the contact / separation portion 25 contracts to gradually increase the contact area. At this time, when the conductor layer 26 of the contact / separation portion 25 comes into contact with the IN contact 42 and the innermost OUT contact 431 and conducts them, an instruction signal of voltage value A is output. When 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 contact 432, the voltage becomes higher than the voltage value A. An instruction signal having a large B value is output. That is, the operation key 30 outputs an operation signal with a voltage value A when the user presses it lightly, and outputs an operation signal with a voltage value B when the user presses the operation key 30 deeply. The operation signal is output.

  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, and 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 displayed in the list on the display unit 22 in the vertical direction, and the right key 34 is a key for determining selection of item data selected by the cursor. The left key 33 functions as 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.

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

  The control unit 10 includes an interrupt controller 11, a communication unit 12, an audio processing unit 13, an A / D converter 15, a D / A converter 14, a CPU 18, a ROM 16, and a RAM 17.

  The interrupt controller 11 is electrically connected to each operation key 30 of the operation unit 3 and the CPU 18. When the interrupt controller 11 detects that an operation signal is output from the operation unit 3, the interrupt controller 11 outputs the operation signal to the CPU 18 to interrupt the process being executed by the CPU 18.

  The communication unit 12 is an interface for performing data communication with an external device such as a PC (Personal Computer) that manages audio data, and includes, for example, a USB. The communication unit 12 communicates with the external device by being connected to the external device via a cable, and outputs a signal acquired by communication to the CPU 18 and the storage unit 21. Specifically, audio data managed by the external device is acquired and transferred to the storage unit 21 for storage, or a control signal (control data) from the external device is transferred to the CPU 18.

  The audio processing unit 13 is a functional unit that decompresses and 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 A / D converter 15. Further, 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, thereby outputting the audio from a speaker or headphones connected to the output terminal 19. Audio data is output from a device (not shown).

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

  The CPU 18 is a central processing unit that executes processing based on a predetermined program in accordance with an input instruction and transfers instructions and data to each functional unit. Specifically, the CPU 18 reads a program stored in the ROM 16 in accordance with an input signal input from the operation unit 30 and executes processing 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. Further, the CPU 18 has a function as a determination unit for determining the input operation signal.

  The RAM 17 develops various programs executed by the CPU 18 in a program storage area. The RAM 17 temporarily stores data such as processing results generated when various programs are executed in the work area.

  The ROM 16 stores programs for realizing various functions related to the operation of the audio player 1. Specifically, an initial program, an application program, and the like for performing various initial settings, hardware inspection, loading of necessary programs, and the like are stored. Therefore, these programs are programs that do not need to be rewritten or programs that must not be rewritten.

  The storage unit 21 is configured by an HDD (hard disk), a semiconductor memory, or the like, and stores audio data for each song and associated information (for example, genre name, artist name, album name, etc.) in association with the audio data. . 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 stores list data for displaying a list of genres, a list of artist names, a list of album names, and a list of track names. The list data is generated by the CPU 18 based on the supplementary information of the audio data when the audio data is downloaded from the external device or the audio reproduction device, or the list data previously generated by the external device is downloaded together with the audio data.

  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.

  The operation unit key 30 outputs at least two types of instruction signals corresponding to the pressing force. Specifically, the operations for transmitting the two types of instruction signals are an operation of pressing lightly and an operation of pressing deeply. Accordingly, the circuit of the operation unit 3 includes two changeover switches (switches S1 and S2; not shown).

  First, when the upper key 31 or the lower key 32 of the operation key 30 is pressed, the conductor layer 26 of the contact / separation portion 25 comes into contact with the IN contact 42 and the innermost OUT contact 431, and the switch S1 is in the ON state. Become. This is an operation when the operation key 30 is pressed lightly. When the switch S1 is turned on by this operation, a voltage value A value instruction signal is output to the CPU 18. When the CPU 18 receives this instruction signal, it starts scrolling. In the scroll function of the audio player 1 according to the present embodiment, the selection item is highlighted and the display area of the selection item is enlarged to a preset magnification.

  When the operation key 30 is further pressed down from that state, the conductor layer 26 comes into contact with the IN contact 42, the innermost OUT contact 431 and the other OUT contact 432, thereby controlling the switch from the switch S 1 to the switch S 2. This is executed and the switch S1 is turned OFF. When the switch S2 is turned on, an instruction signal having a B value larger than the voltage value A is output to the CPU 18. Upon receiving this instruction signal, the CPU 18 enlarges the display area of the selection item with a larger enlargement magnification.

  The scroll operation is not limited to the vertical direction, but can be performed in the horizontal direction. Accordingly, the same processing is executed when the right key 34 or the left key 33 is pressed.

  Further, the process executed by counting the output signal of the voltage value is not limited to changing the scroll speed. Similarly, the display area enlargement process executed in association with the scrolling is executed by counting output signals (described later).

  FIG. 4 is a diagram illustrating a change in scroll speed due to a pressing operation. In the following description, it is assumed that the first-stage pressing operation is a shallow press and the second-stage pressing operation is a deep press. Therefore, when the deep pressing is performed at the same time as the pressing operation is started, the pressing operation of the voltage value B value is counted up because the pressing operation is the second step beyond the first step.

  In the figure, Va is the maximum scroll speed when the operation key 30 is pressed lightly, that is, when the output voltage value is A value, and Vb is when the operation key 30 is pressed deeply, that is, output. This is the maximum scroll speed when the voltage value to be applied is the B value. Further, P1 is a start point where the operation key 30 is pressed lightly, and P2 is a start point where the operation key 30 is pressed deeply. P3 is a start point when the operation is changed from deep pressing to shallow pressing.

  As shown in the figure, first, when the operation key 30 is pressed lightly, the CPU 18 receives the pressing signal and starts scroll processing. Then, the scroll speed is gradually increased, and when the preset speed Va is reached, the scroll is executed while maintaining the speed Va as long as the speed Va is kept pressed. For example, if the operation is interrupted at this point, the scrolling is stopped.

  Here, a processing method of gradually increasing the speed will be described. When the operation key 30 is continuously pressed lightly, a signal based on the output voltage value A is continuously transmitted to the CPU 18. Therefore, the CPU 18 performs a process of gradually increasing the scroll speed based on the number of times by counting up the output signal of the A value. In the present embodiment, as shown in the figure, processing for increasing the scroll speed is executed every two count-ups. Note that the number of count-ups, which is the timing for increasing the scroll speed, is not limited to this.

  The scroll speed is increased every two count-ups, and the count-up process ends when the preset maximum speed Va at the time of shallow pressing is reached. Then, the CPU 18 continues the scrolling process at the speed Va until the next operation signal is received.

  When the operation key 30 is pressed deeply while the scroll process at the speed Va is continued, the scroll speed is gradually increased until the preset maximum scroll speed Vb is reached as in the case of the shallow press. I will raise. The voltage value B output in the case of the deep press is a value larger than the voltage value A output in the case of the shallow press.

  As in the case of shallow pressing, when the operation key 30 is continuously pressed deeply, a signal based on the output voltage value B is continuously transmitted to the CPU 18. Therefore, the CPU 18 performs a process of gradually increasing the scroll speed based on the number of times by counting up the output signal of the B value. In the present embodiment, the scroll speed is increased every two count-ups as in the case of shallow pressing, but the present invention is not limited to this.

  The scroll speed is increased every two count-ups, and when the preset maximum speed Vb is reached, the count-up process is terminated. Then, the CPU 18 continues the scrolling process at the speed Vb until the next operation signal is received.

  When the input operation is changed from the deep push to the shallow push while the scroll process at the speed Vb is continued, the speed is reduced to the maximum scroll speed Va at the time of the shallow push. In this case, a process of gradually decelerating every second count-up and decelerating to the speed Va is executed as in the case of increasing the speed, instead of rapidly decelerating to the speed Va. In P3, when the input operation is completely stopped rather than the operation from the deep press to the shallow press, the scroll is immediately stopped.

  As described above, the scroll speed can be gradually accelerated to different speeds only by operating the operation key 30 in two steps of shallow pressing and deep pressing, so there is no need to perform a plurality of operations. The user's trouble can be saved. In addition, by repeatedly pressing the operation key 30 lightly and deeply, the scroll speed can be freely reduced and accelerated. For example, when selecting an album name, a desired album name can be selected. It can be done quickly.

  In addition, although the scrolling is started by pressing the operation key 30 lightly, it does not reach the fixed scroll speed instantaneously from the time the operation key 30 is pressed, but gradually accelerates. In the scroll operation up to, it is possible to avoid problems such as passing through the target point.

  Furthermore, by dividing the maximum scrolling speed into two stages, the speed can be changed according to the position of the target point. For example, even when there is a large amount of information, music selection and artist selection can be performed quickly and accurately. It becomes possible.

  FIG. 5 is a schematic configuration diagram when the multi-stage tact key of the operation unit of the audio player 1 of FIG. 1 is an optical detection key, and FIG. 6 is an explanatory diagram illustrating a schematic configuration of the operation unit 3. Similar parts are denoted by the same reference numerals, and description thereof is omitted.

  The operation unit 3 is an optical detection unit (optical detection key) that outputs an operation signal when its surface is covered. As illustrated in FIGS. 5 and 6, the operation unit 3 has a plurality of ranges set to correspond to a plurality of instructions, for example, along the width direction. In addition, the operation part 3 may be formed along the up-down direction. Assuming that each range is a setting unit 50, a lens 61 is disposed on the surface of each setting unit 50. In each lens 61, a light emitting element 62 and a light receiving element 63 are arranged in pairs. For example, when a finger or the like covers the lens 61, light from the light emitting element 62 is applied to the finger. When reflected and incident on the light receiving element 63, the light receiving element 63 outputs an operation signal. The operation signal output from the light receiving element 63 is output to the control unit via a light receiving driver (not shown).

  The operation executed by operating the operation unit 3 which is an optical detection key is the same as that of the multistage tact key. The multi-stage tact key has a configuration in which the scrolling speed is accelerated by a pressing operation, and the scrolling speed is further increased by changing from shallow pressing to deep pressing. In the case of an optical detection key, the scroll speed is controlled based on the output of an operation signal by covering each setting section.

  Next, FIG. 7 shows an example of a display screen displayed during the scroll process. FIG. 7A is an example of a display screen when scrolling in the vertical direction, and FIG. 7B is an example of a display screen when scrolling in the horizontal direction.

  As shown in the figure, when there is no key input operation, that is, the number of items displayed on the display screen in the standard state at the time of non-scrolling is, for example, seven, and the selected item is highlighted. . Then, when an operation by deep pressing or shallow pressing is performed, the number of displayed items is reduced from the standard display state by x items, and the item display frame that is highlighted is enlarged and displayed. In the case of the present embodiment, the display of seven items is displayed as six items when non-scrolling, and the highlight item region is doubled in the vertical direction when scrolling in the vertical direction. (When scrolling in FIG. 7A). Similarly, when scrolling in the horizontal direction, the number of display items is set to 6 and the highlight item display frame (hereinafter referred to as the display area) is enlarged by doubling the area of the highlight item in the horizontal direction. FIG. 7 (b) at the time of scrolling.

  Here, the display area enlargement process will be described. As described above, in the scroll operation, the scroll speed changing process is performed by counting the output signal of the voltage value output by the pressing operation. Similarly, in the display area enlargement process, the display area is enlarged by counting the output signals. In the scroll process, the maximum speed at the time of scrolling is changed according to the difference in the output voltage value depending on whether the operation key 30 is pressed lightly or deeply. In the display area enlargement process, the enlargement magnification is changed according to the output voltage value.

  Specifically, when the operation key 30 is pressed lightly, a voltage value A value instruction signal is output to the CPU 18. The storage unit 21 of the audio player 1 is set with an enlargement magnification that is enlarged and displayed when the voltage value A is output in advance. When the CPU 18 receives the shallow push operation signal, the CPU 18 determines whether or not to start counting up A. When the voltage value of the received output signal is the A value, the CPU 18 starts counting up A. The coefficient counted at this time is set as a display coefficient A ′. While counting up the display coefficient A ′, the CPU 18 enlarges and displays the display area with the enlargement factor.

  On the other hand, when the voltage value of the received output signal is a B value, it can be confirmed that the operation is a deep press operation. Therefore, the display area enlargement magnification at the time of the deep press set in the storage unit 21 is read, and the depth During the push operation, the display area is enlarged and displayed at the magnification. The coefficient to be counted up at this time is set as a display coefficient B ′.

  This display area enlargement processing may be executed in combination with the scroll processing of the present invention, or may be executed in combination with normal scroll processing. When executed in combination with the scroll processing of the present invention, the scroll speed is gradually accelerated toward Va by the shallow pressing operation, and the display area is enlarged and displayed at a magnification set in advance to the display coefficient A ′. To do. When the operation key 30 is further pressed to shift to the deep pressing operation, the scroll speed is gradually accelerated toward Vb. At this time, similarly to the case of shallow pressing, the display area is enlarged and displayed at a magnification set in advance to the display coefficient B ′.

  When used in the normal scroll process, that is, when the scroll speed is not accelerated, only the magnification of the display area is changed in the case of shallow press and deep press. Accordingly, the two-step switching of the key pressing operation functions as a display region enlargement magnification changing operation instruction. It is assumed that the user can set whether to change the scroll speed and whether to change the highlight display area. Further, the number of display items is not limited to seven, and the enlargement of the highlight item is twice that of the standard time, but is not limited thereto. Furthermore, the item to be enlarged is not limited to the area, and processing for enlarging the character size may be performed along with the area enlargement.

  The same applies to the optical detection key. The magnification of the display area is controlled based on the output of the operation signal by covering each setting unit.

  In addition, the item to be enlarged is not limited to the display area, and the character size can be enlarged. Therefore, the desired item can be selected more easily and can be selected quickly.

  With reference to the flowchart of FIG. 8, processing executed by the audio player 1 when the operation key 30 is pressed will be described.

  First, it is determined whether or not the entire system of the audio player 1 is in a standby state (step S1). If it is determined in step S1 that the entire system of the audio player 1 is not in a standby state (step S1; NO), the determination in step S1 is repeated again.

  If it is determined in step S1 that the entire system of the audio player 1 is in a standby state (step S1; YES), the data is initialized by clearing the count of the voltage value acquisition count (step S2). In step S2, when the data initialization is executed by clearing the count of the number of acquisitions of the voltage value, it is determined whether or not a key input operation signal has been received (step S3).

  If it is determined in step S3 that a key input operation signal has not been received (step S3; NO), the process returns to step S1 again, and the processes of steps S1 to S3 are repeated. If it is determined in step S3 that a key input operation signal has been received (step S3; YES), whether or not the voltage value output by the key input operation is an A value, that is, the key input operation is a shallow key press. It is determined whether or not there is (step S4).

  If it is determined in step S4 that the voltage value output by the key input operation is the A value, that is, the key input operation is a shallow press of the key (step S4; YES), the A value acquisition count is incremented. Start (step S5).

  On the other hand, if it is determined in step S4 that the voltage value output by the key input operation is not the A value, that is, the key input operation is not a shallow key press (step S4; NO), the input key operation is Since it can be determined that the button is deeply pressed, counting up the number of acquisitions of the B value is started (step S6).

  In step S5, when the count-up of the number of acquisitions of the A value is started, scroll speed or display area changing processing is executed based on the number of counts (step S7).

  On the other hand, similarly, when the count-up of the number of acquisitions of the B value is started in step S6, a scroll speed or display area changing process is executed according to the count number (step S7).

  Next, with reference to the flowchart of FIG. 9, a process for changing the scroll speed or the display area depending on the number of output signals of A value or B value will be described.

  First, in step T1, it is determined whether or not to change the scroll speed (step T1). The setting associated with the scroll speed change is assumed to be performed by the user in advance. Accordingly, when the scroll speed is set to be changed, the scroll process is executed as described above. When the setting for changing the scroll speed is not made, scrolling at a constant speed is executed in the same manner as the normal scroll function.

  Therefore, when it is determined in step T1 that the scroll speed is not changed, that is, when the scroll speed change setting is OFF (step T1; NO), it is determined whether or not the highlight display area is to be enlarged (step). T2). If it is determined in step T2 that the highlight display area is not changed (step T2; NO), the scrolling speed or display area changing process based on the number of output signal acquisitions is terminated, and the scrolling process is performed at a normal constant speed.

  It is assumed that the setting as to whether or not to expand the highlight display area can be freely set by the user, similarly to the scroll speed change setting. Accordingly, when there is no need to enlarge the display area during scrolling, the display area change setting is set to OFF.

  On the other hand, if it is determined in step T1 that the scroll speed change is to be performed, that is, if the scroll speed change setting is ON (step T1; YES), it is determined whether or not to start counting up the number of A signal output signals. (Step T3). In step T3, when it is determined to start counting up the number of acquisitions of the A value (step T3; YES), the counting of the output signal of the A value is started and every time a preset number of times (coefficient A) is acquired, The scroll speed is gradually accelerated (step T4).

  If it is determined in step T3 that the count-up in the number of acquisitions of the output signal of the A value is not started (step T3; NO), since the key operation can be determined to be deep press, counting of the output signal of the B value is started. Each time the preset number of times (coefficient B) is acquired, the scroll speed is gradually accelerated (step T5).

  In step T4, an A-value output signal is acquired and counting is started. In step T5, when a B-value output signal is acquired and counting is started, it is determined whether or not the highlight display area is enlarged. (Step T6). If it is determined in step T6 that the highlight display area is not enlarged (step T6; NO), only the scroll speed changing process is executed, the highlight display area is not enlarged, and the process is terminated.

  On the other hand, if it is determined in step T2 or step T6 that the highlight display area is to be enlarged (steps T2, T6; YES), it is determined whether or not to start counting up the A value display area (step T7).

  If it is determined in step T7 that the count-up for the display area of the A value is started (step T7; YES), the count-up for the display area of the A value is started and the display coefficient A ′ is acquired (step T8). That is, when the voltage value of the received output signal is the A value, the display coefficient A ′ is acquired and the display area is enlarged and displayed based on the enlargement ratio set to the A value. The same applies to the B value.

  If it is determined in step T7 that the count-up for the display area of the A value is not started (step T7; NO), it can be determined that the key operation is deeply pressed. The coefficient B ′ is acquired. In step T8 or step T7, when the display coefficient is acquired, the highlight display area is enlarged and displayed based on the magnification set in advance, and the process ends.

  As described above, the scroll speed change setting and the display area enlargement setting can be turned on and off by the user setting, so that the user's degree of freedom is improved.

It is a front view which shows an example of schematic structure of the portable audio | voice reproduction apparatus which concerns on this embodiment. It is a figure which shows an example of schematic structure of the operation key of the portable audio | voice reproduction apparatus of FIG. It is a block diagram which shows the principal part structure of the portable audio | voice reproduction apparatus of FIG. It is a figure which shows the change of the scroll speed by pressing operation. It is a front view which shows an example of schematic structure of the portable audio | voice reproduction apparatus which concerns on this embodiment. It is a figure which shows an example of schematic structure of the operation key of the portable audio | voice reproduction apparatus of FIG. It is a figure which shows an example of the display screen displayed at the time of a scroll process. 3 is a flowchart illustrating processing executed by the portable audio playback device of FIG. 1 when an operation key is pressed. It is a flowchart which shows the change process of scroll speed or highlight display area by the frequency | count of output signal acquisition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable audio | voice reproduction apparatus 2 Case 3 Operation part 4 Board | substrate 10 Control part 11 Interrupt controller 12 Communication part 13 Audio | voice processing part 14 D / A converter 15 A / D converter 19 Output terminal 20 Input terminal 21 Memory | storage part 22 Display Part 23 Standing part 24 Pressing part 25 Contacting / separating part 26 Derivative layer 30 Operation key 31 Upper key 32 Lower key 33 Left key 34 Right key 35 Center key 41 Contact group 42 IN contact 43 OUT contact

Claims (10)

Display means for displaying a list of a plurality of item data;
An operation means for outputting an operation signal;
Display control means for scrolling the plurality of item data based on the operation signal output by the operation means, and enlarging a display area of the item data during the scroll;
A display device comprising:   The display device according to claim 1, wherein the display area enlarged by the display control unit is a display area of item data to be selected.   The display device according to claim 1, wherein the operation unit is a multi-stage tact key capable of outputting a plurality of the operation signals.   The display device according to claim 1, wherein the operation unit is an optical detection key capable of outputting a plurality of the operation signals. The operation means is capable of at least two-stage input operation,
The display control means enlarges the display area by a first enlargement magnification when the operation signal is in the first stage,
5. The display device according to claim 1, wherein when the operation signal is a second stage, the display area is enlarged by a second enlargement magnification. 6.   The display device according to claim 5, wherein the second magnification is larger than the first magnification.   The display device according to claim 1, wherein the display control unit enlarges the display area and enlarges a character size displayed in the display area.   The display device according to claim 1, wherein the display control unit enlarges the display area and increases the number of characters displayed in the display area. A display step for displaying a list of a plurality of item data;
An operation step for outputting an operation signal;
A display control step of scrolling the plurality of item data based on the operation signal output by the operation step, and enlarging a display area of the item data during the scroll;
A display method comprising: In a computer that controls a display device having input means for inputting operations in multiple stages and display control means for scrolling display of a plurality of item data,
A function of acquiring an operation signal from the input means;
A function of scrolling the plurality of item data based on the operation signal and enlarging a display area of the item data during the scroll;
A display program characterized by realizing the above.

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