JP4127833B2 - Mobile device - Google Patents

Description

The present invention relates to a mobile terminal that displays various menus as icons, and more particularly to a mobile terminal that displays status information of various menus .

(Conventional example 1)
There are mobile phones that display icons for various menus. In this cellular phone, when a desired menu icon is designated with a cursor, a function description of the menu icon is displayed. When the menu icon is activated and a predetermined key operation is performed, related status information is displayed on the menu icon. For example, if the menu icon is a received mailbox, status information such as the number of unread messages is displayed. Further, for example, if the menu icon is a schedule table, status information such as an already entered schedule is displayed.

(Conventional example 2)
There is an access history presentation device that makes it easy to visually recognize a user's access status to a resource object file handled on a computer on a desktop screen of the computer (see, for example, Patent Document 1). In the access history presentation device of Patent Document 1, an access history icon indicating a user's access status (status) is juxtaposed with each of a plurality of file icons displayed in a list. Thereby, the user of the computer can not only visually recognize the file icon on the desktop screen but also intuitively understand the reference history, the change history, and the temporal variation pattern for all the files.

(Conventional example 3)
Some mobile phones display wallpaper when they are on standby. In this mobile phone, the user can select and display various wallpapers.
Japanese Patent Laid-Open No. 2001-51762 (pages 9 to 10 and FIGS. 3 to 5)

  In the mobile phone of Conventional Example 1, the user cannot know the status information of various menus unless he / she consciously activates a desired menu icon and performs several steps of key operations. For this reason, the user cannot know the status information when the menu icon is displayed, so if the user does not consciously perform several key operations, the status information may be overlooked and the action corresponding to the status information may be delayed. There was a problem of forgetting.

In the access history presentation device disclosed in Patent Document 1 of Conventional Example 2, the access history icon indicating the access status (status) has a change history mark and a reference history mark, and these are time-series history. Display a large display area. Therefore, if the access history icons for each of a plurality of file icons are displayed simultaneously, the number of file icons is limited due to the size of the display screen.
In particular, in a device with a small display screen such as a mobile phone, a plurality of icons and each status information cannot be displayed simultaneously, and there is a problem that the number of icons that can be displayed is limited.

  Further, in the mobile phone of Conventional Example 3, various wallpaper is displayed at the time of standby, but further contrivance for wallpaper display is required.
  The present invention has been made to solve the above-described problems, and as long as the menu screen is opened, a plurality of icons and the minimum status information of each icon can be displayed simultaneously on a small display screen of the mobile terminal. Furthermore, it aims at providing the portable terminal which can display the detailed status information of the said icon only by moving a cursor to a desired icon.

In order to achieve the above object, a mobile terminal of the present invention is a mobile terminal that performs wireless communication through a base station. First status information, second status information more detailed than the first status information, a storage unit for storing icons representing the contents of each menu corresponding to a plurality of menus, and a standby screen When one predetermined operation is performed by the key input unit, the radio wave reception level is displayed, and a menu icon and second status information corresponding to the first menu among the plurality of menus are read from the storage unit. And a menu icon corresponding to a second menu different from the first menu of the plurality of menus. And a first control unit that reads out and displays the first status information from the storage unit, displays the first menu on the display unit in a selected state and the second menu in a non-selected state, and When the cursor key is operated while the first menu is selected and the second menu is not selected, the first menu is set to the non-selected state and the menu icon corresponding to the first menu and the first menu are selected. Status, a second menu is selected, a menu icon corresponding to the second menu and a second status are displayed, the first menu is selected, and the second menu is displayed. When the enter key is operated in the non-selected state, the first menu is executed, and the clear key is operated while the first menu is selected and the second menu is not selected. If that, characterized by comprising a second control unit for displaying an idle screen.

According to the present invention, as long as the menu screen is opened, a plurality of icons and the minimum status information of the icons can be displayed simultaneously on a small display screen of the mobile terminal. Information can be displayed. Therefore, since the user can know the minimum status information of the menu simply by opening the menu screen, it is possible to prevent a delay or forgetting of the action and increase the user's sense of security.

  Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1-7 shows Example 1 which applied this invention to the portable terminal.
FIG. 1 is a block diagram of a mobile terminal according to each embodiment. The main parts of the portable terminal are an antenna 1, a communication unit 2, a battery unit 3, a clock unit 4, a microphone 5, a key input unit 6, a control unit 7, a speaker 8, a display unit 9, an icon storage unit 10, and a status storage unit 11. , A wallpaper storage unit 12, a character table 13, and the like.
The antenna 1 transmits and receives radio waves to and from a base station (not shown) of the mobile communication system. The communication unit 2 performs communication data modulation / demodulation processing, etc., performs radio wave reception level measurement, and notifies the control unit 7 of it. The battery unit 3 is a power supply source. The clock unit 4 counts time. The microphone 5 is a voice input unit of a user interface. The key input unit 6 is a key input unit of a user interface. The control unit 7 performs main control of the entire mobile terminal and performs execution control of various menus. The speaker 8 is an audio output means of a user interface. The display unit 9 is a display unit such as a user interface LCD.

The icon storage unit 10 is a storage unit for icon images of various menus of the mobile terminal displayed on the display unit 9 . The status storage unit 11 is a storage unit for status information related to these various menus, and will be described later with reference to FIG. The wallpaper storage unit 12 is a storage unit for wallpaper images displayed on the display unit 9 when the mobile terminal is in the standby mode, and stores still images and moving images. The character table 13 is a storage unit for character information displayed on the display unit 9 when the mobile terminal is in a standby mode.

  FIG. 2 is a diagram illustrating status information in the status storage unit 11 of the mobile terminal. As examples of various menus of the mobile terminal, 14 types of menus are shown. The status storage unit 11 includes a menu icon information storage unit 11a, a minimum status information storage unit 11b, and a detailed status information storage unit 11c. The column 11a of the status storage unit 11 stores menu icon names representing various menus of the mobile terminal. In the column 11b, the minimum status information among the status information related to each menu icon is written by the control unit 7 in real time. In the column 11c, detailed status information among the status information related to each menu icon is written by the control unit 7 in real time.

  Here, as a specific example of the minimum status information, the number of unread cases in the case of an e-mail and the address of an icon stored in the icon storage unit 10 corresponding thereto correspond to this. The detailed status information stores information for displaying information equivalent to or more detailed than the minimum status information. Note that information that the user should prioritize may be described in the minimum status information, and other information may be described in the detailed status information.

  No. The email inbox 1 will be described. In the minimum status information 11b, the number of unread emails received is written, and in the detailed status information 11c, the sender name, subject, and reception date and time of the latest unread email are written. Hereinafter, in the same manner, no. For the E-mail transmission box 2, the number of unsent messages is written in 11 b, and the latest unsent destination name, subject, and date / time are written in 11 c. No. For the C-mail (short mail) inbox 3, the number of unread messages is written in 11 b and the latest unread sender name, subject, and reception date and time are written in 11 c. No. For No. 4 C-mail transmission box, the number of unsent messages is written in 11b, and the latest unsent address name, subject, date and time are written in 11c. No. For the 5 simple absence memo, the number of recordings is written in 11b and the recording date and time is written in 11c.

  No. The normal ringing tone 6 is a content set by the user regarding the ringing tone at the time of the incoming call, and the volume is written in 11b and the set song name is written in 11c. No. The e-mail reception sound of 7 is a content set by the user regarding the reception sound at the time of e-mail reception, and the volume is written in 11b and the set music title is written in 11c. No. The notification reception sound of No. 8 is set by the user to notify the user when an e-mail is received on the server, and whether to notify the user when the answering machine is registered on the server. The volume is written in 11b, and the set song name is written in 11c. No. The C-mail reception sound of 9 is a content set by the user regarding the reception sound at the time of C-mail reception, and the volume is written in 11b and the set song name is written in 11c.

  No. Ten standby screens are contents set by the user regarding the standby screen, and a thumbnail image is written in 11b and a thumbnail image name is written in 11c. Note that the image information of the thumbnail image 11b need not be stored in the status storage unit 11, but may be stored in the wallpaper storage unit 12 so as to be able to cope with it. No. A calendar 11 is a schedule set by the user, and a schedule date is written in 11b and a title of the schedule is written in 11c. Note that 11b is not the scheduled date and time, but with today's date and time, the presence / absence of today's schedule setting is displayed as “1”, “0”, etc. The control information may be written such that the date of the day or the icon color is black on weekdays, blue on Saturdays, and red on Sundays and holidays. Thereby, the user can know whether there is today's schedule for the time being.

  No. For the 12 data folders, the usage rate is written in 11b, and the most frequently used file names stored in the data folder are written in 11c. No. 13 alarms are alarm contents set by the user. Of the alarms set in 11b, the alarm time that occurs earliest, and the alarm title is written in 11c. No. The profile 14 is information related to the user of the mobile terminal, and the local station telephone number is written in 11b, the local station telephone number, the local station mail address, the home subscriber telephone number, and the like are written in 11c.

  The status information of 11b and 11c may not be directly stored in the status storage unit 11, but may be associated with each other so that it can be seen where in each menu-related storage unit (not shown). .

  FIG. 3 is a front view of the mobile terminal. The folding upper case 21 has the display unit 9, and the other lower case 22 has the key input unit 6. The key input unit 6 has a number of keys such as a number / character key 63 for inputting numbers “1” to “0” and “*” / “#”, a clear key 64, an end key 65, and a call key 66. The number / letter keys 63 are also assigned kana characters and alphabetic characters, respectively. For example, the key “2” is assigned the number 2 and the letters ABC and AIUEO. The cursor key 61 has keys at four vertical, horizontal, and vertical arrows, and is used as a cursor for moving the display location in the vertical and horizontal directions. The confirmation key 62 is in the center portion of the cursor key 61 and is used for confirming the operation. The confirmation key 62 may be arranged outside the cursor key 61.

FIG. 4 is an operation flowchart of the control unit that controls the display screen.
FIG. 5 is a diagram for explaining a standby screen (clock division display) of the mobile terminal.
(Standby screen display control)
The operation of the control unit 7 with respect to the standby screen will be described with reference to FIGS. When the mobile terminal is turned on, the control unit 7 enters a power-on state (step S1). Then, it immediately enters a standby display state (step S2). In the standby display state, the standby screen display (FIG. 5) is performed (step S3). FIG. 5 shows a clock image displayed on the display unit 9 when the user previously selects analog clock display as the standby screen.
First, the relationship between the movement of the second hand 94 and the clock image will be described. The control unit 7 reads the time of the clock unit 4 and generates a dial image corresponding to the time by the wallpaper storage unit 12. At this time, when the second hand 94 is between approximately 00 seconds and 15 seconds, the control unit 7 generates and displays a clock image of only the upper right part corresponding to the first quadrant of the dial as shown in FIG. . Further, when the second hand 94 is between approximately 15 seconds and 30 seconds, as shown in FIG. 5B, a clock image of only the lower right portion corresponding to the second quadrant of the dial is generated and displayed. Further, when the second hand 94 is between approximately 30 seconds and 45 seconds, as shown in FIG. 5C, a clock image of only the lower left portion corresponding to the third quadrant of the dial is generated and displayed. Further, when the second hand 94 is between approximately 45 seconds and 60 seconds, as shown in FIG. 5D, a clock image of only the upper left portion corresponding to the fourth quadrant of the dial is generated and displayed. And this switching may be set so that it switches suddenly, or it may be set so that it switches while gradually scrolling from several seconds before and after the switching timing of each quadrant.

  As described above, since the entire clock is scrolled and displayed so as to follow the second hand 94, the analog clock can be enlarged and displayed easily even if the display unit 9 is a small screen display. Further, when the display unit 9 is a large-screen display, the user can enjoy the fun of display.

Next, the time zone character 95 will be described. The time zone characters 95 are stored in the character table 13 in advance, and there are four types of “MORNING”, “AFTERNOON”, “EVENING”, and “NIGHT”. Then, the control unit 7 reads the time of the clock unit 4 and displays “MORNINNG” below the center of the dial if the time zone is 5:00 to 12:00. If the time zone is 12:00 to 18:00, “AFTERNOON” is displayed. If the time zone is 18:00 to 22:00, “EVENING” is displayed. If the time zone is 22:00 to 5:00, “NIGHT” is displayed.
In this way, since it changes according to the time zone four times a day, the user can grasp a time zone feeling different from the conventional AM (AM) and PM (PM) display.

FIG. 6 is a diagram for explaining a menu icon screen of the mobile terminal.
(Control display of menu icon screen)
The operation of the control unit 7 on the menu icon screen will be described with reference to FIGS. When the confirmation key 62 is pressed during the standby screen display (step S3) (“Yes” in step S4), the control unit 7 enters a menu icon display state (step S5).
A menu icon screen displayed in this menu icon display state will be described with reference to FIG. At the top of the display unit 9, there is a simple pictographic display, which displays an electric field display 91 indicating the radio wave reception level, a remaining battery level 92 indicating the remaining battery level, and a current time 93 indicating the current time.
Various menus of the portable terminal are displayed simultaneously as 12 icons 901-912. Which of the 14 menus (FIG. 2) is assigned to which of the icons 901 to 912 can be freely set by the user using the shortcut function, and is arranged as shown in FIG. The description of the shortcut function is omitted. In addition, it is assumed that the icon 905 is selected by the cursor and is enlarged and displayed.

  When entering the menu icon display state (step S5), the control unit 7 confirms the latest status information of each menu and rewrites the status storage unit 11 (step S6). Next, a non-selected icon that is not selected by the cursor is recognized, and for the non-selected icons 901 to 904 and 906 to 912, the minimum status in the column 11b of the corresponding menu icon name in the status storage unit 11 (FIG. 2). Information is read out and displayed as a minimum (step S7). For example, for the icon 901 (e-mail inbox), for example, “5 cases”, which is the number of unread items of the minimum status information, is displayed on the status display section.

  Next, the selection icon selected by the cursor is recognized, and the selection icon 905 (calendar) is set to No. in the status storage unit 11 (FIG. 2). 11 (calendar) 11c column “detailed status information“ scheduled date and time, planned title ”such as“ 9/1, 10:00, sales meeting ”is read and the selection icon 905 (calendar) is enlarged and displayed. The “9/1, 10:00, sales meeting” is displayed (step S8). This “9/1” display is displayed in the same color as the color-coded display such as Saturday, Sunday, and holidays of the calendar. Note that the enlarged display of the selection icon 905 is enlarged so as to overlap the non-selection icon within a range in which display information of other non-selection icons can be substantially read.

The controller 7 checks whether or not a key has been pressed while displaying the menu icons in steps S7 and S8 (step S9). If “None” in step S9, the process returns to step S5, and the latest status information is updated and displayed (steps S6, S7, S8). If “None” is determined in step S9, the process may return to step S9 itself without returning to step S5. In that case, the current consumption can be reduced because the display control in steps S7 and S8 is not repeated. In this case, the update to the latest status information (step S6) is limited to the case where the process enters step S5 from another route. Further, when “None” is determined in Step S9, whether to return to Step S5 or to return to Step S9 may be changed for each menu icon.
If the cursor key 61 is pressed in step S9, the selection icon is moved based on the direction instruction (step S10), the process returns to step S5, the new selection icon is enlarged, and detailed status information is displayed. (Steps S6, S7, S8). If any of the twelve numeric character keys 63 is pressed in step S9, one of twelve icons on the menu icon screen corresponding to the arrangement location is selected. For example, the selection icon is determined so that “1” of the numeric character key 63 corresponds to the icon 901 and “#” of the numeric character key 63 corresponds to the icon 912 (step S10). That is, it is used for the same purpose as the cursor movement.

  When the clear key 64 or the end key 65 is pressed in step S9, the menu icon display is terminated and the display returns to the standby display (step S2). If the enter key 62 is pressed in step S9, the menu icon display is terminated and the menu for the selected icon is started (step S11).

FIG. 7 is a diagram for explaining an example of a detail screen for one of the menu icons of the mobile terminal. FIG. 7A shows the minimum display in the case of a non-selected icon. The icon 901 is an icon image that images a sealed letter. As the title, “E” meaning E-mail is displayed. As the minimum status, “5” representing the number of unread messages is displayed.
FIG. 7B shows a detailed display in the case of the selection icon. The entire display becomes larger, and “Sr. A, Request 10/1”, which is the sender name, subject, and date / time of the latest received email, is displayed as a new detailed status.

  Similarly, the icons 904, 906, 907, and 908 may be displayed with respect to the volume, such as “Volume 3” or a simple image icon that represents the volume. The standby screen display (hatched portion) of the icon 909 may be a thumbnail image with a small amount of information. Further, the display of the data folder of the icon 910 indicates the usage rate as “0-9”, “10-19”, “20-29”, “30-39”, “40-49”, “50-59”, “60-69”, “ It may be divided into 11 stages of “70 to 79”, “80 to 89”, “90 to 99” and “100”, and a specific numerical value of the usage rate may be displayed together with the image icon representing the 11 stages.

In the menu icon display, the status information is always displayed. However, for menus that are set with restrictions or secrets, the icon title display and status information are not displayed and can be viewed by people other than the user. It may not be possible. In addition, the user may be able to set whether to display status information.
Further, the menu that can be registered as the menu icon is not limited to the menu shown in FIG. Then, by pressing the enter key while the icon is selected with the cursor, the phone book may be referred to and the other party can be called immediately. In addition, when deleting the phone book reference source corresponding to the icon registered partner, a comment indicating that the icon has been registered may be issued. When deleted, the display of the registered part of the menu icon may be deleted.

  As described above, according to the menu icon display of the first embodiment, for the icons not selected by the cursor, the minimum status information with a small amount of information is displayed, so that the display space can be reduced. Even if the status information is 9, status information of all icons can be displayed simultaneously. For the icon selected by the cursor, more detailed status information can be displayed. Thereby, the user can know the minimum statuses of all the menus at the same time without any further operation simply by displaying the menu icon, and the user operation can be simplified. In addition, the status information of all menus can be notified at the same time even if not intended, and the user can eliminate oversights such as schedules. Further, when the user wants to know the details of the status information further, the user can know the details by a simple operation simply by placing the cursor on the icon.

8 and 9 show a second embodiment. In the second embodiment, the portion different from the first embodiment is a portion related to the display of the standby screen (step S3 in FIG. 4), and the other portions are the same, and thus the description thereof is omitted.
FIG. 8 is a diagram for explaining the character display related to the time zone on the standby screen of the mobile terminal. When the user selects the wallpaper 96 and is on standby, the display unit 9 displays the wallpaper 96, the word 97 at the center of the screen, and the word 98 at the bottom of the screen. Although the wallpaper 96 is indicated by hatching, various still images and moving images are actually applied.
FIG. 9 is a character table diagram related to the time zone, and is stored in advance in the character table 13. The word 13a is a character displayed at the center of the screen, and the word 13b is a character displayed at the bottom of the screen. The appearance conditions of these characters are stored in 13c. The operation of the control unit will be described with reference to FIG.
While waiting, the control unit 7 reads the designated wallpaper image from the wallpaper storage unit 12 and displays it on the display unit 9. At this time, the control unit 7 reads the time of the clock unit 4 to check the current time, and selects a word corresponding to the appearance condition 13c. For example, if the current time is 7:30, the corresponding character table 13 No. 4 "SUNSHINE" and "Happy Happy Happy!" Are read and displayed on the display unit 9 together with the wallpaper. In addition, regardless of the current time, No. corresponding to the appearance condition 13c randomly. 4, no. 7, no. Any one of 11 to 14 is selected at random, and the word is displayed on the display unit 9 together with the wallpaper at an appropriate cycle.

  In this way, while waiting, characters matching the current time or randomly selected characters are displayed, so that the user can unconsciously see and enjoy the screen.

The third embodiment of the present invention will be described below. In the third embodiment, the portion different from the first embodiment is a portion related to the display of the standby screen (step S2 in FIG. 4), and the other portions are the same, and the description thereof is omitted.
FIG. 10 is a diagram for explaining the electric field display and the battery remaining amount display by the moving image wallpaper on the standby screen of the mobile terminal. When the user selects a box and bar display screen as the standby screen, a moving image of the box and bar is displayed on the display unit 9. Box 99 (one-dot chain line), box 100 (dotted line), and box 101 (solid line) are box displays of the wire frame. In order to make the explanation easy to understand, each is represented by a one-dot chain line, a dotted line, and a solid line, but the actual display need not be this. These box images are moving images and are arbitrarily rotated. The box image may be a still image. The bars 102, 102, and 103 are still images, but may be moving images. The operation of the control unit will be described with reference to FIG.
First, electric field display will be described. The control unit 7 reads the reception level of radio waves from the communication unit 2 and changes the number of three bars displayed on the electric field display 91 of the pictogram display unit according to the magnitude of the reception level. Further, the control unit 7 selects the box images 99 , 100, and 101 to be read from the wallpaper storage unit 12 according to the size of the reception level. For example, when the reception level is high, all the images of the boxes 99 , 100 , and 101 are read and displayed on the display unit 9. When the reception level is low, only the small box image 101 is read and displayed on the display unit 9. When the reception level is out of range, only the small box image 101 is read, and the display brightness is further reduced and blinking control is performed for display.

Next, the battery remaining amount display will be described. The control unit 7 measures the voltage of the battery unit 3 to calculate the battery remaining amount, and changes the number of three bars displayed on the battery remaining amount display 92 of the pictograph display unit according to the battery remaining amount. Further, the control unit 7 selects the bars 102, 102, and 103 images to be read from the wallpaper storage unit 12 according to the remaining battery level. For example, when the remaining battery level is high, all the images of the bars 102, 102, and 103 are read and displayed on the display unit 9. When the remaining battery level is low, only the bar 104 image is read and displayed on the display unit 9. When the remaining battery power is exhausted, only the bar 104 image is read, and the display brightness is further reduced. Further, the display of the bars 102, 102, and 103 may be changed so as to indicate that the battery is being charged.
The wallpaper image is not limited to the box image and the bar image, and may be another wallpaper image.

  In this way, during standby, not only the conventional electric field display and battery level display with small pictogram display, but also the electric field display and battery level display using large wallpaper, the user unconsciously the screen It is possible to enjoy watching or oversight of the electric field display and the battery remaining amount display.

The block diagram of the portable terminal which concerns on Example 1 of this invention. The figure explaining the status information of the status memory | storage part of the portable terminal which concerns on Example 1 of this invention. The front view of the portable terminal which concerns on Example 1 of this invention. The operation | movement flowchart of the control part which controls the menu icon screen of the portable terminal which concerns on Example 1 of this invention. The figure explaining the clock division | segmentation display of the standby screen of the portable terminal which concerns on Example 1 of this invention. The figure explaining the menu icon screen of the portable terminal which concerns on Example 1 of this invention. The figure explaining one example of a detailed screen about one of the menu icons of the portable terminal which concerns on Example 1 of this invention. The figure explaining the character display relevant to the time slot | zone on the standby screen of the portable terminal which concerns on Example 2 of this invention. The character table figure relevant to the time slot | zone of the portable terminal which concerns on Example 2 of this invention. The figure explaining the electric field display by a moving image wallpaper and battery residual amount display in the standby screen of the portable terminal which concerns on Example 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna 2 Communication part 3 Battery part 4 Clock part 5 Microphone 6 Key input part 7 Control part 8 Speaker 9 Display part 10 Icon storage part 11 Status storage part 12 Wallpaper storage part 13 Character table 21 Upper housing | casing 22 Lower housing 61 Cursor Key 62 Confirm key 63 Numeric character key 64 Clear key 65 End call key 66 Call key 91 Electric field display 92 Battery level 93 Current time 94 Second hand 95 Time zone 96 Wallpaper 97-98 Word 99-101 Box 102-104 Bar 901-912 icon

Claims (1)

In a mobile terminal that performs wireless communication through a base station,
A key input section consisting of at least a cursor key, a confirmation key, and a clear key;
A display unit;
A storage unit for storing first status information of a plurality of menus, second status information more detailed than the first status information, and icons representing the contents of the respective menus corresponding to the plurality of menus;
When one predetermined operation is performed from the standby screen by the key input unit, the radio wave reception level is displayed, and the menu icon corresponding to the first menu of the plurality of menus and the second status information are stored in the memory. A menu icon corresponding to a second menu different from the first menu of the plurality of menus and first status information are read from the storage unit and displayed, and the first menu is displayed. A first control unit for displaying on the display unit in a selected state for the first menu, and a non-selected state for the second menu;
When the cursor key is operated while the first menu is in a selected state and the second menu is in a non-selected state, the first menu is deselected and the menu icon corresponding to the first menu and the first menu are displayed. And displaying the menu icon corresponding to the second menu and the second status with the second menu selected.
When the first menu is in a selected state and the second menu is in a non-selected state and the enter key is operated, the first menu is executed,
A portable terminal comprising: a second control unit that displays a standby screen when a clear key is operated while the first menu is selected and the second menu is not selected.

Images