JP2011053853A - Character input system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain a character input method for efficiently inputting characters through the use of a remote controller in a television receiver, etc., that does not have a keyboard. <P>SOLUTION: Input characters are classified into a plurality of character groups; a character input screen to be displayed on the television receiver, etc., is divided into a first hierarchical character display screen and a second hierarchical display screen; a representative character input button group of each character group is displayed on the first hierarchical character display screen; and the character input button group by each character group is displayed on the second hierarchical character display screen. A touch pad is arranged in the remote controller, so as to perform selection of the input button within the first hierarchical character display screen, display of the second hierarchical character display screen, and selection of the input button through the use of the trajectory of a finger sliding on the touch pad. Additionally, the character is inputted which is selected with a timing of the separation of the finger from the touch pad. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a character input system for inputting characters, and more particularly, to display a character input screen on a display device such as a television receiver, and to select / input characters in the character input screen using a remote control device. Regarding the input system.

  In recent years, television receivers equipped with an Internet connection function and a recording function have been commercialized, and there are many scenes in which characters such as names, addresses, and title names are required to be input.

  Conventionally, a remote control device conventionally used for operating a television receiver, a so-called remote controller, is generally operated with buttons and up / down keys and does not have a configuration corresponding to character input. Therefore, a character input means is required, but as a conventionally known means for inputting characters, a soft keyboard system that displays a keyboard on the display screen in addition to using a keyboard used in a personal computer or the like There is.

  With the soft keyboard method, “Hiragana” or “alphanumeric” keys are displayed on the television screen, and when the operator selects characters using the up and down keys of the remote control and confirms them with the enter key, the characters are input. . However, with such a soft keyboard method, if there are a large number of characters to be input, it takes time for the operator to search for those characters, and moreover, since the characters are selected by key operations on the remote control, the amount of movement increases and the operation Sex is reduced.

  Therefore, as a method for inputting characters with few buttons such as a remote controller, there is a method disclosed in Patent Document 1. This method is a common method in a mobile phone, and assigns a plurality of characters to operation buttons and determines the characters to be input by the number of times the button is pressed.

  In this method, for example, “aiueo” in the “a” line of Japanese 50-sound is assigned to one button, “a” is input when the button is pressed once, and “yes” is pressed twice. "Is entered.

JP 2004-227535 A

  However, in the method as shown in Patent Document 1, since a plurality of characters are assigned to the button, depending on the character to be input, it is necessary to press the button many times. If you pass the character you want, you must press the button until the character you want to enter again appears. For this reason, if the user is not familiar with button operations, it takes a very long time to input characters.

  An object of the present invention is to provide a character input system that allows an operator to input characters easily and quickly in consideration of such problems.

  To achieve the above object, the present invention comprises an information display device for displaying a character input screen and a control terminal for controlling an operation for character input on the character input screen displayed on the information display device. In the character input system, the control terminal includes an operation unit for inputting operation information for character input, and a transmission unit for transmitting operation information input by the operation unit. A receiving unit that receives operation information transmitted by the transmitting unit; a first layer character display screen that displays each representative character of each character group classified into a plurality of groups as the character input screen; A display unit that displays a second layer character display screen that displays each character group represented by each representative character, and an operation information that is received by the receiving unit by displaying the first layer character display screen on the display unit. But each representative sentence When the first operation information is selected as one representative character, a character group represented by one representative character selected as the second hierarchical character display screen is displayed and received by the receiving unit. When the operation information is the second operation information for selecting one character from the displayed character group, a display control unit for displaying the selected character as an input character is provided.

  In the above system, the operation unit is a touch panel to which operation information is input when a user touches, slides, and releases a finger, and the display control unit receives operation information received by the receiving unit. Based on this, a pointer linked to the movement of the finger touched on the touch panel is displayed on the character input screen displayed on the display unit, and the first operation information includes the pointer on one representative character. The information is input by touching a finger so that the finger does not move for a certain period of time, and the second operation information is operation information input by moving the finger away when the pointer is on one character. It is desirable.

  Another character input system comprising an information display device for displaying a character input screen and a control terminal for controlling an operation for character input on the character input screen displayed on the information display device in the present invention. The control terminal includes a display unit for displaying a first layer character display screen for displaying each representative character of each character group classified into a plurality of groups as a screen for inputting the character, and a character. An operation unit for inputting operation information for input, and a transmission unit for transmitting operation information input by the operation unit, wherein the information display device receives operation information transmitted by the transmission unit. A display unit displaying a second layer character display screen that displays each character group represented by each representative character as the character input screen, and operation information received by the receiving unit is represented by each representative character. One of When the representative character is the first operation information to be selected, a character group represented by one representative character selected as the second hierarchical character display screen is displayed, and the operation information received by the receiving unit is When the second operation information selects one character from the displayed character group, a display control unit that displays the selected character as an input character is provided.

  In the above system, the display unit and the operation unit of the control terminal are touch panels to which operation information is input by a user touching, sliding, and releasing a finger, and the display control unit receives the reception A pointer linked to the movement of a finger touched on the touch panel is displayed on the second hierarchical character display screen displayed on the display unit based on the operation information received by the display unit, and the first operation information is displayed. Is information input by touching one representative character among the representative characters displayed on the first-level character display screen displayed on the touch panel, and the second operation information includes the pointer on one character. In this case, it is desirable that the operation information is input with the finger away.

  According to the present invention, since the first hierarchical character display screen and the second hierarchical character display screen are displayed separately, selection of input characters is facilitated.

  Furthermore, by using a touch panel as the operation unit, it is possible to select an input character with a single touch operation, and it becomes easier to select an input character.

FIG. 3 is an overview diagram illustrating an operating environment of the character control terminal according to the first embodiment. It is a block diagram which shows the structure of the character input device of Example 1. FIG. It is an example of the 1st hierarchy character input screen of Example 1. FIG. It is an example of the 2nd hierarchy character input screen of Example 1. FIG. It is a flowchart explaining operation | movement of the character input device of Example 1. FIG. 6 is an example of a first level character input screen for explaining an operation of the first embodiment. 6 is an example of a second-level character input screen for explaining operations in the first embodiment. 6 is an example of a second-level character input screen for explaining operations in the first embodiment. 6 is an example of a second-level character input screen for explaining operations in the first embodiment. FIG. 10 is an example of a second level character input screen for explaining an operation of the second embodiment. FIG. It is a flowchart explaining operation | movement of the character input device of Example 2. FIG. 10 is an example of a second level character input screen for explaining an operation of the second embodiment. FIG. FIG. 10 is an example of a second level character input screen for explaining an operation of the second embodiment. FIG. It is an example of the 2nd hierarchy character input screen for operation description of Example 3. FIG. It is an example of the 2nd hierarchy character input screen for operation description of Example 3. FIG. It is an example of the 2nd hierarchy character input screen for operation description of Example 3. FIG. It is a block diagram which shows the structure of the control terminal of Example 4. It is a flowchart explaining operation | movement of the character input device of Example 3. It is an example of the 2nd hierarchy character input screen for operation description of Example 4. FIG. It is an example of the 2nd hierarchy character input screen for operation description of Example 4. FIG. It is an example of the 2nd hierarchy character input screen for operation description of Example 4. FIG. It is an example of the 2nd hierarchy character input screen for operation description of Example 4. FIG. 10 is an example of a control terminal according to a fifth embodiment. It is an operation | movement flowchart at the time of using the control terminal of Example 5. FIG.

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

  FIG. 1 is an operation conceptual diagram of the character input system in the first embodiment of the present invention. Reference numeral 100 denotes an information display device, for example, a television receiver equipped with an Internet connection function, a recording function, a region setting function, etc., and character input is required when setting each function, editing a title, creating an e-mail, etc. Information display device. Reference numeral 101 denotes a display unit, which shows a display screen of a display device such as a liquid crystal display or a plasma display.

  Reference numeral 211 denotes a character input screen on which buttons for selecting input characters are displayed. The character input screen 211 is displayed on the display unit 101 when the information display device 100 needs to input characters.

  Reference numeral 110 denotes a control terminal that controls the information display device 100. For example, a television receiver or the like is a remote controller device, a so-called remote controller. Reference numeral 111 denotes a button input unit for controlling the information display device 100, and buttons for turning on / off the power, increasing / decreasing the volume, selecting a channel, and the like are arranged.

  112 is a touch operation unit, for example, a touch panel, a touch pad, etc. When the operator touches with the finger 113 and slides the touched finger 113, the touch and touch-up state of the finger 113, the moving amount, and the moving direction are changed. To detect.

  FIG. 2 is a block diagram showing the configuration of the information display device 100 and the control terminal 110. The same parts as those in FIG. A data processing unit 120 converts a signal or voltage input from the button input unit 111 and the touch operation unit 112 as input means into data to be transmitted to the information display device 100. Reference numeral 121 denotes a wireless communication unit, which transmits the data converted by the data processing unit 120 to the information display device 100 wirelessly.

  201 of the information display device 100 is a wireless communication unit, and receives a signal transmitted from the wireless communication unit 121 of the control terminal 110. Here, the radio | wireless used for a radio | wireless communication means may be anything, such as infrared rays and a high frequency signal, for example. In the present invention, the wireless terminal is used in consideration of the convenience of the operator. However, the control terminal 110 and the information display apparatus 100 may be connected by wire. A data processing unit 202 extracts information necessary for controlling the display device 100 from a signal received by the wireless communication unit 201. Reference numeral 203 denotes a display state control unit, 204 denotes an input button display processing unit, 205 denotes a character information conversion unit, and the display state control unit 203 determines the current display status and the signal from the data processing unit as needed. The screen data necessary for screen display is generated and acquired by the input button display processing unit 204, and when the input character is displayed, it is converted and displayed by the character information conversion unit 205. Reference numeral 206 denotes a video processing unit, which generates a display screen determined by the display state control unit or performs synthesis with other video signals (not shown) and displays the video on the display unit 210. With the above configuration, the operator can perform display control of the information display device 100 using the button input unit 111 and the touch operation unit 112.

  Examples of display screens generated by the input button display processing unit 204 are shown in FIGS. FIG. 3 is an example of a first hierarchical character display screen that is displayed first when characters are input, and FIG. 4 is an example of an input button second hierarchical character display screen when any of the buttons displayed in FIG. 3 is selected. is there. The same parts as those in FIG. In FIG. 3, 401 indicates an input character display area for displaying an input character, 402 indicates an input button image group, and 403 indicates a position display image (pointer) indicating an operation position. When the operator touches the touch operation unit 112 with a finger and slides the touched finger, the finger position information is sent from the control terminal 110 to the information display device 100, and the position display image 403 is also linked to the movement of the finger. Moving. When the position display image 403 is on a button of the input button image group 402 for a predetermined time or longer, the second hierarchical character display screen is displayed. For example, when the position display image 403 is present on the “A” button 404 for a predetermined time or longer, the “A” line corresponding to the “A” button 404 and the associated item are associated with the “A” button 404 as shown in FIG. A second hierarchical character display screen 410 showing buttons for displaying information is displayed. Further, when the position display image 403 is on the “ka” button 405 for a predetermined time or longer, the “ka” line corresponding to the “ka” button 405 and the associated “ka” button 405 as shown in FIG. A second hierarchical character display screen 411 showing buttons for displaying information is displayed. The buttons other than the “A” button 404 and the “KA” button 405 shown in the input button image group 402 also have the second layer, but illustration and description thereof are omitted here.

  Next, a character input procedure using the input button image group 402 which is the input button first layer display screen and the input button second layer display screen will be described. FIG. 5 shows a processing flow of the information display apparatus 100. First, in step 501, display of the first hierarchical character display screen 402 described with reference to FIG. 3 is started. The display timing of the first hierarchy character display screen 402 may be displayed automatically by the information display device 100 when character input is necessary, or by pressing one of the input buttons of the control terminal 110, The display device 100 may display. In step 502, operation data necessary for character input is received from the control terminal 110. In step 503, it is determined whether the operator is touching the touch operation unit 112 based on the received data. If the operator is touching, the moving amount and moving direction of the touched portion are detected in step 504, and an image obtained by moving the position display image 403 in the moving amount and moving direction detected in step 505 is displayed. To do. FIG. 6 shows an example of a display screen after the position display image 403 is moved. The same parts as those in FIG. Reference numeral 601 denotes a position display image 403 before movement, and reference numeral 602 denotes a movement amount and a movement direction of the position display image 403. Next, in step 506, it is determined whether the position display image 403 is on the input button, and further, in step 507, it is determined whether the screen currently displayed is the input button second-level character display screen. If it is not the input button second hierarchy character display screen, in step 513, for example, as shown in the screen example of FIG. 6, the position display image 403 is on the button, and the current display screen is the input button first hierarchy character display. If it is a display screen and it is determined that the buttons are arranged on the same button for a predetermined time or longer, the input button second hierarchy character display screen is displayed in step 508. When the position display image 403 is arranged on the same button for less than a certain time, for example, when the finger is sliding, when the touch time is short, the input button second layer character display screen is not displayed and the input button A one-level character display screen is displayed. Further, in step 510, the displayed input button second hierarchy character display screen is selected and displayed. FIG. 7 shows a display screen example. The same components as those in FIG. 3 and FIG. Reference numeral 610 denotes a currently displayed button, which indicates that it is being selected by changing its color or the like from the other buttons. If it is determined in step 503 that the operator has not touched the finger by removing the finger from the touch operation unit 112, in step 511, it is determined whether or not a button is currently selected and displayed. If there is no selection display button, the process returns to step 501, and if there is a selection display button, the character input process corresponding to the selection display button is performed in step 512, and then the process returns to step 501.

  Here, for example, when “e” is input, an operation method after displaying the second-level character display screen 410 described with reference to FIG. 7 will be described. In the state of FIG. 7, when the operator slides downward without releasing the finger from the touch operation unit 112, operation data including the amount and direction of touch movement is transmitted from the control terminal 110 to the information display device 100. The As described above, the information display apparatus 100 displays the position display image 403 that has been moved by the amount corresponding to the movement amount and movement direction of the operator's finger in steps 502 to 505. Here, transmission / reception of operation data between the control terminal 110 and the information display device 100 is performed at a certain interval while the operator touches the touch operation unit 112 and slides the finger to a desired button. FIG. 8 shows a screen example in which the position display image 403 is moved on the “e” button that the operator wants to input. The same components as those in FIG. 3 and FIG. 620 is a position display image 403 before movement, 621 is a movement amount and movement direction of the position display image 403, and 622 is a button during selection display. The selected button 622 is an “e” button that the operator wants to input. When the operator inputs “e”, the finger is released from the touch operation unit 112 here. FIG. 9 shows a screen display example after the operator lifts his / her finger from the touch operation unit from the screen state of FIG. The same components as those in FIG. 3 are denoted by the same reference numerals, and description thereof is omitted. Reference numeral 630 denotes an input character displayed in the input character display area 401, which displays “e” that the operator has attempted to input.

  As described above, in the character input method of the present invention, another character can be input by touching the touch operation unit 112 with a finger, sliding the finger, and releasing the finger from the touch operation unit.

  As described above, with the character control terminal of the present invention, the operator can easily input characters with a single touch. Further, by limiting the number of characters to be displayed at a time to only the characters assigned to each button, it is possible to easily search for input characters from a small number of display characters.

  Next, an example of an input operation in which the character type, half-width and full-width, etc. are switched with one touch will be described. FIG. 10 shows an example of the input button second layer character display screen of the “ra” line. The same components as those in FIG. 3 and FIG. Reference numeral 700 denotes an example of a second-layer character display screen for input buttons of “Ra” line, and reference numeral 701 denotes a switching button for hiragana and katakana. FIG. 11 shows an operation flow for switching the display character type of the input button second layer character display screen. The same parts as those in FIG. In step 530, it is determined whether or not the button selected and displayed in step 510 is the switching button 701. If the button is a switching button, in step 531, if the current display character type is hiragana, the current display character type is katakana. If so, switch to hiragana. FIG. 12 shows an example of the display screen after the character type is switched from the example of the display screen of FIG. The same components as those in FIGS. 3, 4, and 10 are denoted by the same reference numerals, and description thereof is omitted. Reference numeral 710 denotes a second layer character display screen after the character type is switched, reference numeral 711 denotes a position display image before movement, and reference numeral 712 denotes a movement direction and a movement amount. When moving from the position display image 711 before the movement to the input switching button 701, each button of the hiragana display “Rariru Riro” on the second hierarchical character display screen is replaced with each button of the Katakana display “Ralil Lero”. The operator can further input characters by sliding the finger to move the position display image onto the character button to be input and releasing the finger. In addition, instead of or in addition to the hiragana and katakana switch buttons, the character switch button is provided with a switch button for half-width and full-width characters, a switch button for upper-case and lower-case letters, and the like, so that the character type can be changed. It may be switched. FIG. 13 shows an example of a display screen when a plurality of character type switching buttons are arranged. The same components as those in FIGS. 3, 4, and 10 are denoted by the same reference numerals, and description thereof is omitted. 740 is a second-level character display screen when a plurality of character type switching buttons are arranged, and 741 is a switching button between half-width and full-width. The operator performs switching between katakana and hiragana, half-width and full-width, and selection of input characters while sliding a finger on the touch operation unit 112.

  According to the above invention, the character type can be easily switched.

  Next, a method for inputting characters in a line having a muddy or semi-voiced point will be described. FIG. 14 shows an example of a second hierarchical character display screen related to the “ha” button. The same components as those in FIG. 3 and FIG. Reference numeral 451 denotes a second layer character display screen corresponding to the “ha” button. In the second-level character display screen 451, characters can be input in the same manner using the operation flow of FIG. 5, but the characters in the “ha” line have muddy sounds and semi-voiced sounds, respectively. It is necessary to display more buttons than the second layer character display screen. Accordingly, it is difficult to find a character to be input, and the movement amount of the position display image is increased. For this reason, as described with reference to FIG. 10, as a method of inputting characters having a muddy point or a semi-turbid point, as in the case of the character type switching button, a muddy point / semi-turbid point switching button is provided, as described in FIGS. In the same manner as the operation, the character may be switched to a dakuten or semi-dakuten character. Further, it is also possible to input a character having no dakuten or semi-dakuten first and then select and input a button for dakuten or semi-dakuten later. FIG. 15 shows a second layer character display screen example of the “ha” button. The same components as those in FIG. 3 and FIG. When inputting “ba” or “pa”, first, remove the finger from the touch operation at “ha” and enter “ha”. As shown in FIG. 16, the muddy point and the semi-turbid point are assigned to one button. Similar to the character input, the operator touches the touch operation unit 112 with a finger and slides the touched finger. Select and enter the cloudy and semi-cloudy points.

  As described above, with the character input device of the present invention, it becomes possible to easily input characters with a cloud point and a semi-cloud point.

  Next, an input example in which characters on the same line are continuously input will be described. FIG. 17 is an example of a block diagram of the control terminal of the present invention. The same reference numerals as those in FIG. 2 denote the same parts as those in FIG. 2, and a description thereof will be omitted. Reference numeral 160 denotes a timer, and 161 denotes a data processing unit. The data processing unit 161 detects the position information of the finger touching the touch operation unit 112, and from the state where the finger touches the touch operation unit 112, The tap time until the finger leaves the touch operation unit 112 and touches again is monitored using the timer 160, and when the tap time is shorter than a certain time, as the tap-up information, via the wireless communication unit 121, It transmits to the information display device. The operation flow of the information display device is shown in FIG. The same parts as those in FIG.

  After character input processing in step 512, it is determined in step 530 whether or not a tap operation has been performed. If it is not a tap operation, the screen returns to the first layer character display screen in step 501 as in the process of FIG. 5, but if it is a tap operation, the character input screen is not changed and the display state is kept as it is. . FIG. 19 shows an example of a second layer character input display screen before step 512, and FIG. 20 shows an example of a second layer character input display screen after step 530. The same components as those in FIG. 15 are denoted by the same reference numerals, and description thereof is omitted. In FIG. 19, it is determined that the hand has been released from the touch operation unit 112 on the input button “HI”, and the character “HI” 453 is input to the input area 401 as shown in FIG. Here, if it is determined that the operation is a tap operation, the second-level character input display screen 452 is displayed as it is, and is displayed by further sliding the finger on the touch operation unit. Characters on the second level character input display screen 452 can be selected and input. For example, as illustrated in FIG. 21, when the finger is slid so that the position display image 402 is positioned on the “F” button and the finger is released from the touch operation unit 112, the character input area 401 has “ "Hi" and "fu" are entered.

  With the input device of the present invention described above, it becomes possible to input characters in the same second-level character input display screen more easily and continuously.

  FIG. 23 is another example of the control terminal of the present invention, which is a control terminal provided with a display screen. 160 is a control terminal, 161 is a display screen of the control terminal, and a transparent touch panel is arranged on the display screen 161. Reference numeral 162 denotes a button display area similar to the first hierarchical character display screen. The operator touches a button in the button display area 162 to display the second hierarchy character display screen on the information display device 100 or the display screen 161 of the control terminal. After the second hierarchical character display screen is displayed, as described above, a character is input by sliding the finger and releasing the finger.

  FIG. 24 shows an operation flow when the control terminal described in FIG. 23 is used. The same components as those in FIG. 18 are denoted by the same reference numerals, and description thereof is omitted. In step 561, if the data received in step 502 is other than the button input of the control terminal, the process is performed in the same manner as in FIG. 18, but if it is a button input, the next process is skipped to step 507, and the second The time for displaying the hierarchical character input screen can be shortened.

DESCRIPTION OF SYMBOLS 100 ... Information display apparatus 101 ... Display part 110 ... Control terminal 111 ... Input button group 112 ... Touch pad 113 ... Operator's finger 120 ... Data processing part 121 ... Wireless communication unit 201... Wireless communication unit 202 .. Data processing unit 203... Display state control unit
204 ... Input button display processing unit 205 ... Character information conversion unit 206 ... Video processing unit 210 ... Display unit 211 ... Character input screen

Claims (6)

A character input system comprising an information display device that displays a character input screen and a control terminal that controls operations for character input on the character input screen displayed on the information display device,
The control terminal
An operation unit for inputting operation information for character input;
A transmission unit that transmits operation information input through the operation unit;
The information display device includes:
A receiver that receives operation information transmitted by the transmitter;
As the character input screen, a first layer character display screen that displays each representative character of each character group classified into a plurality of groups, and a second layer that displays each character group represented by each representative character A display unit for displaying a character display screen;
When the display unit displays the first hierarchical character display screen, and the operation information received by the receiving unit is first operation information for selecting one representative character among the representative characters, A character group represented by one representative character selected as the two-layer character display screen is displayed, and the operation information received by the receiving unit is a second character in which one character is selected from the displayed character group. A character input system comprising: a display control unit that displays a selected character as an input character when the operation information is. The operation unit is a touch panel on which operation information is input by a user touching, sliding, and releasing a finger,
The display control unit displays a pointer linked to the movement of a finger touched on the touch panel on the character input screen displayed on the touch panel based on the operation information received by the receiving unit.
The first operation information is information that is input by touching a finger so that the pointer does not move over a certain time on one representative character,
The character input system according to claim 1, wherein the second operation information is operation information that is input by moving a finger away when the pointer is on one character. The control terminal includes a timer that measures a tap time from when the finger is removed from the touch panel until it is touched again.
The transmission unit transmits as tap-up information when the tap time measured by the timer is shorter than a predetermined time,
The display control unit displays the selected character as an input character, and when the receiving unit does not receive the tap-up information, stops the display of the second hierarchical character display screen and receives the reception. 3. The character according to claim 2, wherein, when receiving the tap-up information, the character continues to display the second layer character display screen so that the input character can be selected continuously. 4. Input system. A character input system comprising an information display device that displays a character input screen and a control terminal that controls operations for character input on the character input screen displayed on the information display device,
The control terminal
A display unit for displaying a first layer character display screen that displays each representative character of each character group classified into a plurality of groups as the screen for character input;
An operation unit for inputting operation information for character input;
A transmission unit that transmits operation information input through the operation unit;
The information display device includes:
A receiver that receives operation information transmitted by the transmitter;
A display unit for displaying a second layer character display screen for displaying each character group represented by each representative character as the character input screen;
When the operation information received by the receiving unit is the first operation information for selecting one representative character among the representative characters, the representative information is represented by one representative character selected as the second hierarchical character display screen. When the operation information received by the receiving unit is the second operation information for selecting one character from the displayed character group, the selected character is input character. A character input system comprising a display control unit for displaying as a character string. The display unit and the operation unit of the control terminal are touch panels on which operation information is input by a user touching, sliding, and releasing a finger,
The display control unit displays a pointer linked to the movement of a finger touched on the touch panel on the second layer character display screen displayed on the display unit based on operation information received by the receiving unit. Let
The first operation information is information inputted by touching one representative character among the representative characters of the first layer character display screen displayed on the touch panel,
5. The character input system according to claim 4, wherein the second operation information is operation information that is input by separating a finger when the pointer is on one character. 6. The control terminal includes a timer that measures a tap time from when the finger is removed from the touch panel until it is touched again.
The transmitter transmits tap-up information when the tap time measured by the timer is shorter than a predetermined time,
The display control unit displays the selected character as an input character, and when the receiving unit does not receive the tap-up information, stops the display of the second hierarchical character display screen and receives the reception. 6. The character according to claim 5, wherein when the tap-up information is received by a section, the display of the second layer character display screen is continued so that the input character can be selected continuously. Input system.

Images