JP4936155B1 - Text information input method for mobile phones - Google Patents

Abstract

The present invention provides a character information input method for a mobile phone that facilitates character information input by improving the operability of character information input.
A mobile phone according to the present invention is a four-fold type mobile phone that can be folded and expanded like a four-fold folding screen. A liquid crystal touch panel is provided on a display surface of a first casing. The liquid crystal touch panel 22 is provided on the display surface of the second housing 12, the liquid crystal touch panel 23 is provided on the display surface of the third housing 13, and the mobile phone 1 is configured on the fourth housing 14. When the kana input mode is selected with the electronic parts and the battery mounted, and with each housing of the mobile phone 1 fully opened, the kana input mode is required by using the liquid crystal touch panels 21, 22, and 23. All the input keys are displayed in a size adapted to the size of the operator's finger of the mobile phone 1, and character information in the kana input mode is input.
[Selection] Figure 4

Description

  The present invention relates to a character information input method for a mobile phone that facilitates input of character information, for example, in a mobile phone.

Conventionally, in a mobile phone, about 12 keys are set with numbers, kana characters, and alphabets, and the mode is changed using the mode key for switching the input mode, and the mode is switched to the numeric input mode, kana input mode, alphabet input mode, etc. You are typing.
In such a cellular phone, since the key is small and the key must be pressed many times, the fatigue of the finger is severe and the key may be small.

In particular, a key input method for inputting with a reduced number of keys has been proposed for cellular phones because the number of keystrokes is increased and input operability is poor (for example, Patent Document 1).
In addition, there is a mobile phone that is folded in half, and a display unit and a key unit (input unit) are separated to increase individual keys in the key unit (for example, Patent Document 2).

  However, even with such a two-fold mobile phone, the display part is still small and the key part is also small, especially for elderly people, it is bothersome to see characters on the display part and to input characters from the key part The nature was bad.

  Japanese Patent Publication No. 2005-4500   Japanese Patent Publication No. 2004-48719

As described above, the display unit and the input unit in the mobile phone are small, and it is bothersome to see characters on the display unit and to input characters from the input unit, and the operability is poor.
An object of the present invention is to provide a character information input method for a mobile phone that improves the operability of character information input and facilitates the input of character information.

  Accordingly, the present invention provides a character information input method for a mobile phone having a voice input unit and a voice output unit, wherein the mobile phone is arranged on a display unit and a display surface of the display unit and is operated by an operator. If there is a contact, a first housing provided with a display-integrated touch panel device including a touch panel that outputs the contact position, a display unit, and a contact by an operator disposed on the display surface of the display unit If there is a second housing provided with a display-integrated touch panel device including a touch panel for outputting the contact position, a display unit, and a contact by an operator disposed on the display surface of the display unit A kana input mode for inputting kanji-kana mixed Japanese with a third housing provided with a display-integrated touch panel device including a touch panel for outputting the contact position. In this case, the display integrated touch panel device of the first housing, the display integrated touch panel device of the second housing, and the display integrated touch panel device of the third housing are used for the kana input mode. All the input keys are displayed in a size adapted to the size of the operator's finger so that the character information of the kana input mode is input.

  The present invention can provide a character information input method for a mobile phone that improves the operability of character information input and facilitates the input of character information.

1 is an external view showing an example of a mobile phone to which the first embodiment of the present invention can be applied. FIG. 2 is an external view illustrating a state in which the mobile phone illustrated in FIG. 1 is viewed from the A direction. FIG. 2 is an external view showing a state where the mobile phone shown in FIG. The figure which shows the example which displayed the kana input mode on the liquid crystal touch panel of a mobile telephone. FIG. 6 is an external view illustrating an example of a hingeless mobile phone according to a second embodiment. FIG. 6 is an external view illustrating an example of a mobile phone according to a third embodiment. FIG. 10 is an external view illustrating an example of a mobile phone according to a fourth embodiment.

First, the first embodiment will be described.
FIG. 1 shows an external configuration of a mobile phone 1 according to the present invention. That is, the front surface of the mobile phone 1 is provided with an audio input unit 10 in which a microphone for inputting audio is arranged and an audio output unit 20 in which a speaker for outputting audio is arranged. ing.
Note that FIG. 1 is drawn with substantially the same dimensions as an actual mobile phone. For example, the main body of the mobile phone 1 has a vertical length of 110 mm and a horizontal width of 50 mm.

FIG. 2 shows the mobile phone 1 as viewed from the direction A in FIG. The mobile phone 1 includes a first casing 11, a second casing 12, a third casing 13, and a fourth casing 14.
The first housing 11 and the second housing 12 are connected via the hinge portion 2 so as to be openable and closable so as to face each other, and the hinge portion 3 is openable and closable so that the second housing 12 and the third housing 13 face each other. The third casing 13 and the fourth casing 14 are connected via the hinge part 4 so as to be openable and closable so as to face each other.
The first casing 11 is provided with the voice input unit 10 and the voice output unit 20.

FIG. 3 shows the cellular phone 1 as viewed from the direction A in FIG. The first casing 11, the second casing 12, the third casing 13, and the fourth casing 14 are in a state similar to the letter W.
The first casing 11 and the second casing 12 can be opened in the direction of arrow a via the hinge portion 2. The second casing 12 and the third casing 13 can be opened in the direction of arrow b via the hinge portion 3. The third casing 13 and the fourth casing 14 can be opened in the direction of arrow c via the hinge portion 4.

That is, the mobile phone 1 of the present invention is a four-fold type mobile phone that can be folded and expanded like a four-fold folding screen.
A liquid crystal touch panel 21 that is a display integrated touch panel device including a liquid crystal display device and a capacitive touch panel laminated thereon is provided on the display surface of the first casing 11.

A liquid crystal touch panel 22 that is a display integrated touch panel device including a liquid crystal display device and a capacitive touch panel laminated thereon is provided on the display surface of the second casing 12.
A liquid crystal touch panel 23 that is a display integrated touch panel device including a liquid crystal display device and a capacitive touch panel laminated thereon is provided on the display surface of the third casing 13.
The fourth casing 14 is mounted with electronic components (not shown) constituting the mobile phone 1 and a battery (not shown) of the mobile phone 1.

FIG. 4 shows a state in which each housing of the mobile phone 1 is completely opened. In FIG. 4, as described above, the first casing 11 includes the liquid crystal touch panel 21, the second casing 12 includes the liquid crystal touch panel 22, and the third casing 13 includes the liquid crystal touch panel 23.
FIG. 4 is also drawn with almost the same dimensions as an actual mobile phone. For example, the liquid crystal touch panels 21, 22, and 23 are 42 mm long and 70 mm wide.

FIG. 4 shows a state in which “kana input mode” for inputting Japanese mixed with kanji and kana is selected and hiragana (character information) is input.
When the kana input mode is selected, by using the liquid crystal touch panels 21, 22, and 23, all the input keys necessary for the kana input mode are the size of the finger of the operator (adult to child) of the cellular phone 1. Displayed in a size adapted to the size. As a result, the operability of the kana input (character information input) is improved and the hiragana (character information) of the kana input mode is input. Note that all the input keys necessary for the kana input mode are, for example, a key group as shown in FIG.
The liquid crystal touch panels 21, 22, and 23 have input keys displayed in association with each other. When the operator's finger of the mobile phone 1 touches (touches) the input key touch panel, the hiragana (character Information) is entered.

  For example, one of the input keys in FIG. 4 is displayed 10 mm long and 14 mm wide. As a result, it is possible to display an input key having a size adapted to (corresponding to) the size of the operator's finger of the mobile phone 1 that could not be realized with a conventional mobile phone. Note that the size of the input key shown in FIG. 4 is not fixed, but is changed to a size suitable for the finger size of the operator (person from adult to child) and displayed. Also good. In this case, it may be changed in advance or may be changed directly from the liquid crystal touch panels 21, 22, and 23.

  In addition to “kana input mode (character information input mode)” as shown in FIG. 4, “number input mode (character information input mode)”, “alphabet input mode (character information input mode)”, and Germany Foreign language character input modes (character information input mode) such as Japanese and Korean. In this case, by using the liquid crystal touch panels 21, 22, and 23, all the input keys necessary for the selected character information input mode are displayed in a size suitable for the size of the operator's finger of the mobile phone 1. . Thereby, the operability of character information input is improved and character information in the character information input mode is input.

In the example shown in FIG. 4, there are 50 input keys required for the “kana input mode”, but all the input required for the “numeric input mode”, “alphabet input mode”, and foreign language character input mode. Since the number of keys is less than 50, it is possible to display in a size suitable for the size of the finger of the operator of the mobile phone 1.
Note that the size of the input key is not fixed, and may be changed to a size suitable for the finger size of the operator (person from adult to child) and displayed. In this case, it may be changed in advance or may be changed directly from the liquid crystal touch panels 21, 22, and 23.

  When the inventor (adult) touched a finger with a transparent ruler, the contact range was approximately 5 mm in length and 5 mm in width. As a result, in order to obtain an input key having a size adapted to (corresponding to) the finger size of the operator (a person from an adult to a child) described above, in consideration of the error of the contact range, at least one input key is required. It is desirable that the size is 7 mm or more in length and 7 mm or more in width. However, in consideration of operability, it is desirable that one input key has a length of 10 mm or more and a width of 10 mm or more. In addition, the number of input keys to be displayed and the size of the total display surface of the liquid crystal touch panel are limited, but in consideration of operability, one input key is preferably 30 mm or less and 30 mm or less.

  Since the size of one input key in FIG. 4 is 10 mm in length and 14 mm in width, it is sufficiently adapted.

  In addition, in the four-fold type mobile phone according to the first embodiment, three liquid crystal touch panels are provided in four casings. However, even if a three-fold type mobile phone is provided with three liquid crystal touch panels, the above-described case is described above. The cellular phone character information input method can be applied.

  Further, a game is obtained by image information (including moving images and still images) displayed on the liquid crystal touch panels 21, 22, and 23 and touch panel inputs (including touch panel contact position information) from the liquid crystal touch panels 21, 22, and 23. Can be expanded (game operation).

Next, a second embodiment will be described.
The second embodiment is a hingeless mobile phone.
FIG. 5 shows an example of a hingeless mobile phone 30 in which the entire casing 31 is integrated. That is, the housing 31 includes a first housing portion (first housing) 31a in which the liquid crystal touch panel 41 is provided, a bent portion 31b, and a second housing portion (second housing) in which the liquid crystal touch panel 42 is provided. 31c, a bent part 31d, a third casing part (third casing) 31e provided with a liquid crystal touch panel 43, a bent part 31f, an electronic component (not shown) and a battery (not shown) are mounted. And a fourth casing portion (fourth casing) 31g.

In addition, since the housing 31 is comprised with comparatively soft resin, each housing part can be bent by the bending parts 31b, 31d, and 31f. As a result, a four-fold hingeless mobile phone that can be folded and expanded by the four-fold type shown in FIG. 1 can be realized.
Further, in the four-fold mobile phone according to the second embodiment, three liquid crystal touch panels are provided in four casings. However, even if a three-fold mobile phone is provided with three liquid crystal touch panels, it is hingeless. Mobile phones can be realized.

Next, a third embodiment will be described.
The mobile phone 50 in the third embodiment is provided with four liquid crystal touch panels by adding one liquid crystal touch panel to the four casings of the four-fold type mobile phone shown in the first embodiment. The same parts are denoted by the same reference numerals and description thereof is omitted.
FIG. 6 shows a mobile phone 50 according to the third embodiment. The display surface of the fourth housing 14 is a display integrated type comprising a liquid crystal display device and a capacitive touch panel laminated thereon. A liquid crystal touch panel 24 which is a touch panel device is provided.

FIG. 6 shows a state in which each housing of the mobile phone 50 is completely opened. Note that FIG. 6 is also drawn with substantially the same dimensions as an actual mobile phone. For example, the liquid crystal touch panels 21, 22, 23, and 24 are 42 mm long and 80 mm wide.
FIG. 6 shows a state in which “Kana input mode” for inputting Japanese with kanji and kana is selected and hiragana (character information) is input.

  When the kana input mode is selected, all the input keys necessary for the kana input mode are adapted to the finger size of the operator of the mobile phone 1 by using the liquid crystal touch panels 21, 22, 23, and 24. Is displayed. As a result, the operability of the kana input (character information input) is improved and the hiragana (character information) of the kana input mode is input. Note that all input keys necessary for the kana input mode are, for example, a key group as shown in FIG.

The liquid crystal touch panels 21, 22, 23, and 24 are displayed with input keys associated with each other. When the operator's finger of the mobile phone 50 touches (touches) the input key touch panel, the hiragana characters are touched from the contact position. (Character information) is input.
For example, one of the input keys in FIG. 6 is displayed with a length of 14 mm and a width of 16 mm. That is, by increasing the liquid crystal touch panel 24, a larger input key can be displayed as compared with the mobile phone 1 of the first embodiment.

  As a result, it is possible to display an input key having a size adapted (corresponding) to the size of the finger of the operator of the mobile phone that could not be realized with the conventional mobile phone. Note that the size of the input key shown in FIG. 6 is not fixed, but is changed to a size adapted to the finger size of the operator (person from adult to child) and displayed. Also good. In this case, it may be changed in advance, or may be changed directly from the liquid crystal touch panels 21, 22, 23, 24.

  In addition to “kana input mode (character information input mode)” as shown in FIG. 6, “numeric input mode (character information input mode)”, “alphabet input mode (character information input mode)”, and Germany Foreign language character input modes (character information input mode) such as Japanese and Korean.

  In this case, by using the liquid crystal touch panels 21, 22, 23, 24, all input keys necessary for the selected character information input mode are displayed in a size suitable for the size of the operator's finger of the mobile phone 50. Is done. Thereby, the operability of character information input is improved and character information in the character information input mode is input.

  In the example shown in FIG. 6, all the input keys necessary for the “kana input mode” are 50, but in the “numeric input mode”, the “alphabet input mode” and the foreign language character input mode, all the necessary inputs are required. Since the number of keys is less than 50, it is possible to display in a size suitable for the size of the finger of the operator of the mobile phone 50.

  Note that the size of the input key is not fixed, and may be changed to a size suitable for the finger size of the operator (person from adult to child) and displayed. In this case, it may be changed in advance, or may be changed directly from the liquid crystal touch panels 21, 22, 23, 24.

  In addition, image information (including moving images and still images) displayed on the liquid crystal touch panels 21, 22, 23, and 24 and touch panel input from the liquid crystal touch panels 21, 22, 23, and 24 (including touch panel contact position information) The game can be developed (game operation).

Next, a fourth embodiment will be described.
The fourth embodiment is a two-fold type mobile phone.
FIG. 7 shows a two-fold type mobile phone 60, in which a first casing 61 and a second casing 62 are connected via a hinge part 63 so as to be openable and closable so as to face each other.

The display surface of the first casing 61 is provided with a liquid crystal touch panel 64 which is a display integrated touch panel device including a liquid crystal display device and a capacitive touch panel laminated thereon.
A liquid crystal touch panel 65 that is a display integrated touch panel device including a liquid crystal display device and a capacitive touch panel laminated thereon is provided on the display surface of the second casing 62.

FIG. 7 shows a state in which the first casing 61 and the second casing 62 in the mobile phone 60 are completely opened. FIG. 7 is also drawn with substantially the same dimensions as an actual mobile phone. For example, the liquid crystal touch panels 64 and 65 are 74 mm long and 50 mm wide.
FIG. 7 shows a state in which “Kana input mode” for inputting Japanese mixed with kanji and kana is selected and hiragana (character information) is input.

When the kana input mode is selected, by using the liquid crystal touch panels 64 and 65, all the input keys necessary for the kana input mode are displayed in a size suitable for the size of the operator's finger of the mobile phone 1. . As a result, the operability of the kana input (character information input) is improved and the hiragana (character information) of the kana input mode is input. It should be noted that all the input keys necessary for the kana input mode are, for example, a key group as shown in FIG.
In addition, the liquid crystal touch panels 64 and 65 display input keys associated with each other, and touch the touch panel of the input key on which the operator's finger of the mobile phone 50 is displayed (contact), so that hiragana (character information) from the contact position is displayed. Is entered.

For example, one of the input keys in FIG. 7 is displayed with a length of 10 mm and a width of 10 mm.
As a result, it is possible to display an input key having a size adapted (corresponding) to the size of the finger of the operator of the mobile phone that could not be realized with the conventional mobile phone. Note that the size of the input key shown in FIG. 7 is not fixed, but is changed to a size suitable for the size of the finger of the operator (person from adult to child). Also good. In this case, it may be changed in advance or may be changed directly from the liquid crystal touch panels 64 and 65.

  In addition to “kana input mode (character information input mode)” as shown in FIG. 7, “numeric input mode (character information input mode)”, “alphabet input mode (character information input mode)”, and Germany Foreign language character input modes (character information input mode) such as Japanese and Korean. In this case, by using the liquid crystal touch panels 64 and 65, all the input keys necessary for the selected character information input mode are displayed in a size suitable for the size of the finger of the operator of the mobile phone 60. Thereby, the operability of character information input is improved and character information in the character information input mode is input.

In the example shown in FIG. 7, all the input keys necessary for the “kana input mode” are 50, but all the input keys necessary for the “numeric input mode”, “alphabet input mode”, and foreign language character mode. Since the number is less than 50, it can be displayed in a size adapted to the size of the operator's finger of the mobile phone 60.
Note that the size of the input key is not fixed, and may be changed to a size suitable for the finger size of the operator (person from adult to child) and displayed. In this case, it may be changed in advance or may be changed directly from the liquid crystal touch panels 64 and 65.

  Further, the game is developed (games) by image information (including moving images and still images) displayed on the liquid crystal touch panels 61 and 62 and touch panel input (including touch position information on the touch panel) from the liquid crystal touch panels 61 and 62. Operation).

  In addition, in the two-fold type mobile phone according to the fourth embodiment, two liquid crystal touch panels are provided in the two casings. The character information input method of the mobile phone can be applied. Furthermore, the above-described character information input method for a mobile phone can be applied even if a four-fold type mobile phone is provided with two liquid crystal touch panels in four casings.

As described above, according to the above-described embodiment, the mobile phone is folded in four, and the liquid crystal touch panel is used to display the input key having a size adapted to (corresponding to) the size of the operator's finger of the mobile phone. By doing so, operability can be improved.
In addition, the operability is improved by displaying the input key of a size adapted to (corresponding to) the size of the finger of the operator of the mobile phone by using the four liquid crystal touch panels with the mobile phone folded in four. Can do.
Further, the operability is improved by displaying the input key having a size adapted to (corresponding to) the size of the operator's finger of the cellular phone using two liquid crystal touch panels by folding the cellular phone in two. Can do. Furthermore, a hingeless two-fold mobile phone is also possible.
Further, it can be applied to a portable terminal such as a PHS and a tablet terminal similar to the portable telephone.

Moreover, not only hiragana but also foreign language characters (character information) such as English alphabet, German and Korean can be supported.
In the above embodiment, a liquid crystal display device is used for the display unit. However, an organic EL display device may be used as long as it can be displayed thinly. In addition, although a capacitive touch panel is provided, it may be possible to input by stacking transparent panels whose positions can be specified.

  In addition, in order to make an input key having a size adapted to (corresponding to) the finger size of an operator (person from an adult to a child), in consideration of the error of the contact range, one input key is at least 7 mm in length. It is desirable that the width is 7 mm or more. However, in consideration of operability, it is desirable that one input key has a length of 10 mm or more and a width of 10 mm or more. In addition, the number of input keys to be displayed and the size of the total display surface of the liquid crystal touch panel are limited, but in consideration of operability, one input key is preferably 30 mm or less and 30 mm or less.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. In addition, the embodiments may be combined as appropriate as possible, and in that case, the combined effect can be obtained. Furthermore, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the effect described in the column of the effect of the invention Can be obtained as an invention.

  DESCRIPTION OF SYMBOLS 1,30,50,60 ... Mobile phone, 2,3,4,63 ... Hinge part, 10 ... Voice input part, 11,61 ... 1st housing, 12,62 ... 2nd housing, 13 ... 3rd 14 ... 4th housing, 20 ... Audio | voice output part, 21, 22, 23, 24, 64, 65 ... Liquid crystal touch panel (display integrated touch panel apparatus), 31 ... Housing.

Claims (4)

A character information input method for a mobile phone having a voice input unit and a voice output unit,
The mobile phone is
A first housing provided with a display-integrated touch panel device that includes a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when the operator touches the display unit;
A second housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A third housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A fourth housing on which the electronic components constituting the mobile phone and the battery of the mobile phone are mounted;
Have
When a kana input mode for inputting kanji-kana mixed Japanese is selected, the display-integrated touch panel device of the first casing, the display-integrated touch panel device of the second casing, and the third casing By using the display-integrated touch panel device, all input keys necessary for the kana input mode are displayed in a size suitable for the size of the operator's finger, and character information of the kana input mode is input. A character information input method for a mobile phone. A character information input method for a mobile phone having a voice input unit and a voice output unit,
The mobile phone is
A first housing provided with a display-integrated touch panel device that includes a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when the operator touches the display unit;
A second housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A third housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A fourth housing on which the electronic components constituting the mobile phone and the battery of the mobile phone are mounted;
Have
The first casing, the second casing, the third casing, and the fourth casing are connected, and can be folded or expanded like a four-fold folding screen,
When a kana input mode for inputting Japanese characters mixed with kanji is selected in a state where the first casing, the second casing, the third casing, and the fourth casing are expanded , By using the display-integrated touch panel device of the first casing, the display-integrated touch panel device of the second casing, and the display-integrated touch panel device of the third casing, all the necessary input modes are required. A character information input method for a cellular phone, wherein an input key is displayed in a size adapted to the size of the operator's finger, and character information in the kana input mode is input. A character information input method for a mobile phone having a voice input unit and a voice output unit,
The mobile phone is
A first housing provided with a display-integrated touch panel device that includes a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when the operator touches the display unit;
A second housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A third housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A fourth housing on which the electronic components constituting the mobile phone and the battery of the mobile phone are mounted;
Have
By using the display integrated touch panel device of the first casing, the display integrated touch panel device of the second casing, and the display integrated touch panel device of the third casing, the character information input mode can be changed. A character information input method for a cellular phone, wherein all necessary input keys are displayed in a size adapted to the size of the operator's finger and character information in the character information input mode is input. A character information input method for a mobile phone having a voice input unit and a voice output unit,
The mobile phone is
A first housing provided with a display-integrated touch panel device that includes a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when the operator touches the display unit;
A second housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A third housing provided with a display-integrated touch panel device including a display unit and a touch panel that is arranged on the display surface of the display unit and outputs a contact position when there is contact by an operator;
A fourth housing on which the electronic components constituting the mobile phone and the battery of the mobile phone are mounted;
Have
The first casing, the second casing, the third casing, and the fourth casing are connected, and can be folded or expanded like a four-fold folding screen,
In the state where the first casing, the second casing, the third casing, and the fourth casing are expanded , the display-integrated touch panel device of the first casing and the display one of the second casing By using the body-type touch panel device and the third case-integrated display-integrated touch panel device, all the input keys necessary for the selected character information input mode have a size adapted to the size of the operator's finger. A character information input method for a mobile phone, wherein the character information is displayed and character information in the character information input mode is input.

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