WO2001082045A1

WO2001082045A1 - A method for inputting english letters into a computer is disclosed.

Info

Publication number: WO2001082045A1
Application number: PCT/CN2000/000247
Authority: WO
Inventors: Fook Hing Yau
Original assignee: Fook Hing Yau
Priority date: 2000-04-26
Filing date: 2000-08-24
Publication date: 2001-11-01
Also published as: AU2000266818A1

Abstract

The method comprises the steps as follows: dividing English letters into a plurality of different versions; distributing the English letters in each of the plurality of different versions on the numeral keys; displaying the functional keys and the English letters in the first version on a virtual keyboard; and making the subsequent processes on the basis of key positions pressed by a user: for a numeral key or a shift key plus a numeral key, placing the small letters or the capital letters corresponding to the key position on the vitual keyboard in the text area; if it's version key, displaying the functional key and the English letters representative of the relevant version on the virtual keyboard and then making same processes as above according to the key positions pressed by user until the confirm key has been inputted. The present invention is suitable for the devices which are used for inputting English using numeral keys.

Description

Nine-key English letterpress input method

Technical field

The invention relates to a method for inputting English, in particular to a method for inputting English using nine numeric keys.

Background technique

Mobile phones, electronic notebooks and other micro-electronic products are equipped with a keyboard for entering numbers. In order to enter English, each number key on the keyboard is marked with 3-4 English in addition to the corresponding 1 digit. letter. When inputting English, the sequential method is used, that is, pressing a key once will enter the first letter of the key; pressing a key twice consecutively will enter the second letter of the key; pressing a key consecutively three times will enter The third letter marked by this key ... Because this type of input method has certain requirements on the speed of continuous key pressing, it is very inconvenient to use, dazzling, and often makes mistakes.

Summary of the Invention

In view of the foregoing, the main object of the present invention is to provide a method for inputting English in a letterpress manner using nine number keys, which can simplify the English input method and conveniently and accurately input English. It is still another object of the present invention to provide a method for inputting punctuation marks using nine number keys in a letterpress manner.

To achieve the above objective, the present invention adopts the following technical solutions:

A nine-key English letterpress input method used on a device having a logic operation component, a data storage component, a display component, and a keyboard. The steps are:

1.1 Define the display layout of the simulated keyboard

Display the simulated keyboard on the display part, divide the twenty-six English letters into several versions and display them on the simulated keyboard, and assign the English letters in each version to the number keys starting from 1 on the simulated keyboard, and define them on the simulated keyboard Function keys, including function key, space key, shift key;

1.2 When the device prompts for input, follow the steps below to enter English:

1.2.1 Display the function keys and the first English letters on the display part in the form of an analog keyboard;

1.2.2 Read the key value of the device keyboard pressed by the operator with reference to the analog keyboard, and determine the key position corresponding to the analog keyboard according to this key value;

1.2.3 According to the determined situation of the simulated keyboard keys:

If it has been assigned a numeric key, it means that the input is a lowercase letter of the key position on the current analog keyboard, then remove the lowercase letter from the storage unit, put it into the display text area, and go to step 1.2.2; if it is changed Shift key + assigned number key, it means that the uppercase letter of the key position on the current analog keyboard is entered, then remove the uppercase letter from the storage part, put it in the text area, and go to step

1.2.2;

If it is the space bar, put a space into the display text area, go to step 1.2.2;

If it is a version key, indicating that the operator wants to input letters of other versions, the function keys and the corresponding English letters are displayed on the display part in the form of an analog keyboard, and go to step 1.2.2; If it is the input confirmation key of the device, the content of the displayed text area is taken out and processed accordingly, and the above input process ends.

Another nine-key English letterpress input method used on a device having a logic operation part, a data storage part, a display part, and a keyboard, the steps are:

2.1 Define the display layout of the simulated keyboard

Display the simulated keyboard on the display part, display the twenty-six English alphabets on the simulated keyboard, assign the English letters in each version to the number keys starting from 1 on the simulated keyboard, and put the numbers and punctuation marks like this The character version is displayed on the analog keyboard. The characters in each version are assigned to the number keys starting from 1 on the analog keyboard, and the function keys are defined on the analog keyboard. The function keys include the version key, space bar, and shift. Key, switch key

2.2 When the device prompts for input, follow the steps below to enter English and characters:

2.2.1 Display the function keys and the first English letters on the display part in the form of an analog keyboard;

2.2.2 Read the key value of the device keyboard pressed by the operator with reference to the analog keyboard, and determine the key position corresponding to the analog keyboard according to this key value;

2.2.3 Perform the following different processing according to the determined situation of the simulated keyboard keys:

If it is a switch key, it means that the operator wants to input numbers or punctuation marks, then the function keys and the first version characters are displayed on the display part in the form of an analog keyboard, go to step 2.2.2;

If the assigned number key indicates that the input is a lowercase letter or character of the key position on the current analog keyboard, then remove the lowercase letter from the storage part and place it in the display text area. Go to step 2.2.2, or Remove the character from the storage part and put it in the display text area, then go to step 2.2.1; if it is the shift key + the assigned number key, it means that the input is the uppercase English letter of the key position on the current analog keyboard , Then remove the uppercase English letter from the storage part, put it into the display text area, go to step 2.2.2;

If it is the space bar, place the space in the text area and go to step 2.2.2;

If it is a version key, it means that the operator wants to enter other versions of letters or characters, then the function keys and corresponding English letters or characters are displayed on the display part in the form of an analog keyboard, go to step 2.2.2;

If it is the input confirmation key of the device, the content of the displayed text area is taken out and processed accordingly, and the input process is ended.

In the step 2.1, the characters in each edition can also be assigned to the number keys starting from 1 on the simulated keyboard in the format of two characters above and below each key position; in the step 2.2.3: When the function keys and characters are displayed in the form of a keyboard, each key position displays the upper and lower characters; if the determined key position is an assigned number key, it means that the lower case letter of the key position on the current simulated keyboard is entered. Or downshift characters, remove the lowercase letters or downshift characters from the storage part and put them in the text area; if the determined key position is the shift key + the assigned number key, it means that the input is the current one Keyboard simulation If the uppercase English letter or upper file character on the key position is taken out, the uppercase English letter or upper file character is taken out of the storage part and displayed in a text area.

Another nine-key English letterpress input method used on a device having a logic operation component, a data storage component, and a keyboard, the steps are:

3.1 Define the keyboard

Twenty-six English letters are divided into three versions according to their order. The first version includes the English letter keys ah and punctuation switching keys, the second version includes the English letter keys iq, and the third version includes the English letter keys rz Defined on the number keys 1-9 of the device keyboard;

Define the space bar, shift key, plate change key, and confirmation key on the device keyboard;

3.2 When the device prompts for input, follow these steps to enter English:

3.21 Set the keyboard of the current device as the first version of the English alphabet keyboard;

3.22 Read the key position of the keyboard of the device pressed by the operator, and perform the following processing according to the key position:

If it is a number key that has been defined, it means that the lower case letter of the key position on the current keyboard is entered, then the lower case letter is taken out of the storage part and displayed in the text area, and then go to step 3:22;

If it is a shift key + a defined number key, it means that the input is the capital letter of the key position on the current keyboard, then remove the capital letter from the storage part, put it into the display text area, go to step 3.22; Key, put a space into the display text area, go to step 3.22;

If it is a version key, it means that the operator wants to input letters of other versions, then set the current keyboard to the English alphabet keyboard of the corresponding version, go to step 3.22;

If it is the confirmation key of the device, the content in the text area is taken out for corresponding processing, and the input process ends.

In the step 3.1, common punctuation marks are also defined on the number keys on the device keyboard starting from 1; in step 3.22, if the determined key position is a punctuation switching key, it indicates that the operator wants to input For punctuation, set the current device keyboard to be a punctuation keyboard, and continue to read the keys of the device keyboard pressed by the operator. If the keys are numeric keys, it means that the number of the key on the keyboard of the current device is entered. Then remove the number from the storage part, put it in the display text area, and then go to step 3.21; if the key position is the shift key + a defined number key, it means that the input is the punctuation of the key position on the keyboard of the current device Symbol, then remove the punctuation mark from the storage part and place it in the display text area, then go to step 3.21.

The shift key, space key, confirmation key, and shift key defined on the keyboard of the device are "*", "0", "#", "Λ", and "V", respectively.

The common punctuation marks include ",", ".", "!", "?".

The letters or characters in the simulated keyboard are displayed in an mxn array, where m and n are both greater than 1 ₀

Letters or character parts in the simulated keyboard may also be displayed in a 1 ^x η array, where n is greater than 1. The letters or character portions in the simulated keyboard can also be displayed in a 3 X 3 array.

Overview of the drawings

1 is a display diagram of a three-dimensional analog keyboard of the present invention;

2 is a display diagram of a flat analog keyboard of the present invention;

FIG. 3 is a device keyboard defined in another embodiment of the present invention.

The preferred embodiment of the present invention

The invention is a nine-key English letterpress input method used on a device having a logic operation component (such as a microprocessor), a data storage component, a display component, and a keyboard. Such devices include electronic products such as mobile phones, electronic diaries, and small electronic devices. Their keyboards have numeric keys 0-9, *, #, and device-specific keys. The steps of the method of the invention are:

1 Define the simulated keyboard display layout

An analog keyboard is displayed on the display part, and characters such as English alphabets, numbers, and punctuation marks are assigned to the numeric keys of the analog keyboard, and function keys are defined on the analog keyboard.

See Figure 1: Twenty-six English letters are divided into three editions. The letters AH are assigned to the number keys 1-7 and 9 of the first version of the analog keyboard. The letters IQ and RZ are respectively located on the second and third editions and assigned in sequence. The number keys 1-9 of each version of the analog keyboard. Characters such as numbers and punctuation marks are divided into two editions. The characters in each edition are assigned to the numeric keys 1-9 of the analog keyboard in the format of two characters above and below each key. Function keys are defined on each version of the analog keyboard. The function keys include the shift key [Shift] assigned to the * key, the shift key [→] assigned to the 0 key, and the space key [Space] assigned to the # key. , And the switch key [*] assigned to the number key 8 of the first alphabetic keyboard. Among them: It is used to switch from English input to character input; [Shift] + [English letter key] means input uppercase letters; [Shift] + [Character key] means input the symbol above the symbol; [→] means to switch Next edition; [Shift] + [→] means return to the previous edition. The order of version changes is bidirectional circulation, that is: the first edition of the English alphabet-the second edition of the English alphabet → the third edition of the English alphabet → the first edition of the English alphabet (forward circulation), or the first edition of the English alphabet → the third edition of the English alphabet → Second edition English alphabet-first edition English alphabet (reverse cycle); and first edition characters → second edition characters → first edition characters (forward or reverse cycle).

2 When the above mobile phone and other devices prompt for input (such as asking for the content of a business card or short message), enter English or characters as follows:

2.1 The microprocessor makes the display unit display the function keys and the first English letters in the form of an analog keyboard;

2.2 The microprocessor reads the key value of the device keyboard pressed by the operator with reference to the analog keyboard, and determines the key position corresponding to the analog keyboard according to the key value;

2.3 The microprocessor performs the following different processes according to the determined situation of the simulated keyboard keys: If it is a switch key [※, indicating that the operator wants to enter numbers or punctuation marks, the function keys and the first version characters are displayed on the display part in the form of an analog keyboard, and go to step 2.2;

If it has been assigned a numeric key, it means that the input is a lowercase or lower-case character of the key position on the current analog keyboard. Then remove the lowercase letter from the storage part and place it in the display text area. Go to step 2.2, or Remove the downshift character from the storage part and put it in the display text area, then go to step 2.1; if it is the shift key [Shift] + the assigned number key, it means that the input is corresponding to the key position on the current analog keyboard Uppercase English letters or upper-case characters, remove the uppercase letters from the storage unit and place them in the display text area, and go to step 2.2, or remove the upper-case characters from the storage unit and place them in the display text area, and then Step 2.1;

If it is the space bar, put a space into the display text area, go to step 2.2;

If it is a version key, it means that the operator wants to input other versions of letters or characters, then the function keys and corresponding English letters or characters are displayed on the display part in the form of an analog keyboard, go to step 2.2;

If it is the input confirmation key of the above device, the content of the displayed text area is taken out and processed accordingly (such as putting it into a storage unit or sending it out). The above input process is over.

The above-mentioned "read the key value of the device keyboard and determine the key position pressed by the operator according to the key value", "put English letters or characters into the text area", "remove the content of the displayed text area and handle it accordingly" All are well-known technologies in the art, so they will not be described again.

Here is an example of entering "Easy Type", see Figure 1:

1. First simulate the keyboard to display the first version of English letters and function keys. The operator first presses [Shift] + E for uppercase E, then directly presses A for lowercase a, and then press [Shift] + Bu] or press Bu] twice. Switch to the third edition; (3 or 4 keys)

2. Next, the simulated keyboard displays the third edition of English letters and function keys. The operator directly presses S, Y to take the lowercase 5, y, and then press [Space] to empty a space, press [Shift] + T to take the uppercase T, and then directly presses Υ Lowercase y, then press [Shift] + [] or press [→] twice to switch to the second edition; (6 or 7 keys)

3. Simulate the keyboard and then display the second version of English letters and function keys. The operator directly presses P for lowercase p, and then press [Shift] + Bu] or press [→] twice to switch to the first version; (2 or 3 keys )

4. The simulated keyboard then displays the first version of English letters and function keys. The operator directly presses E to get lowercase e, and the input is completed. (1 key)

The above share 12 or 15 keys, while the current nine-key sequential English input method requires 18 keys. The advantages of the present invention are evident from this.

In addition to the three-dimensional display shown in FIG. 1, the analog keyboard of the present invention can also be displayed in a flat form as shown in FIG. 2, so as to facilitate the user's input under different interface platforms without hindering work. When displayed in three-dimensional form, the letters or characters in the simulated keyboard are displayed in an mxn array, where m and n are both greater than 1. The best solution is to display in a 3 x 3 array. When displayed in a flat form, the The letter or character part is displayed in lx _n array, where _{n is} greater than 1, or it can be displayed in lx 9 array.

In addition, characters such as numbers and punctuation marks can be divided into more layouts. The characters in each edition are assigned only one character per key position, that is, the format without inferiority is assigned to the numeric keys of the analog keyboard.

If the problem of inputting characters is not considered, only the 26 English letters need to be displayed in different editions. The input method is similar to the above method except that there is no character input, and it is not repeated here.

Considering that some microelectronic products (such as telephones and other products) are not equipped with a display component, or the size of the display component is not suitable for displaying an analog keyboard, the present invention can also use another method without using an analog keyboard to input people. In English, the method is:

The 26 English letters are divided into three editions according to their arrangement order. The first edition includes the English alphabet key ah and the switch key "※",, the second edition includes the English alphabet key iq, and the third edition includes the English alphabet key rz. Defined on the number keys 1-9 of the device keyboard; Define "*", "0", "#", "Λ" and "V" on the device keyboard as the shift key [Shift], space key [Space ], Input confirmation key [Enter], version change key. [Shift] + [numeric key] means input the uppercase letter of the English letter defined by the number key position, [V] means to move to the next edition, [Λ] means to go back The first version. The sequence of version changes is still bidirectional. The defined device keyboard is shown in Figure 3.

When a device such as the above-mentioned mobile phone prompts for input, follow the steps below to enter English:

1 The microprocessor sets the current device keyboard as the first version of the English alphabet keyboard;

2 The microprocessor reads the key position of the keyboard of the device pressed by the operator, and performs the following processing according to the key position:

If it is a number key that has been defined, it means that the input is the lowercase English letter of the key position on the current keyboard, then remove the lowercase letter from the storage part and put it in the display text area, go to step 2;

If it is a shift key + a number key that has been defined, it means that the input is the uppercase English letter of the key position on the current keyboard, then remove the uppercase letter from the storage part and put it in the display text area, go to step 2;

If it is the space bar, put a space into the display text area, go to step 2;

If it is a version key, it means that the operator wants to input letters of other versions, then set the current keyboard to the English alphabet keyboard of the corresponding version, go to step 2;

If the operator presses the confirmation key of the device, the content in the text area is taken out for corresponding processing. The input process ends.

In some cases, you may need to enter numbers or punctuation marks. For this, you can define common punctuation marks such as ",", ".", "!", "?", Etc. on the keyboard of the device. Key. In this way, in step 2: if the determined key position is a punctuation switching key, indicating that the operator wants to enter a number or punctuation mark, set the keyboard of the current device as the punctuation keyboard, and continue reading the operator The key position of the keyboard of the pressed device. If the key position is a number key, it means that the number of the key position on the keyboard of the current device is input. Then remove the number from the storage part and place it in the display text area. Then go to step 1. ; If the key is a shift key + a defined number key, it means that the punctuation mark of the key position on the keyboard of the current device is input, then remove the punctuation mark from the storage part, put it into the display text area, and then Go to step 1;

The following is an example of "Easy Type!"

1. First, the microprocessor sets the keyboard of the device as the first version of the English alphabet keyboard. The operator first presses [Shift] + E to take the uppercase E, then directly presses A to take the lowercase a, and then press [Λ] to return to the previous version. Third Edition; (3 keys)

2. Next, the microprocessor sets the device keyboard to the third edition English alphabet keyboard. The operator directly presses S, Y to get lowercase s and lowercase y, then presses [Space] to empty one space, and press [Shift] + T to take uppercase. T, then press Υ directly to get lowercase y, and then press [Λ] to return to the second edition; (6 keys)

3. The microprocessor then sets the device keyboard to the second version of the English alphabet keyboard. The operator directly presses P for lowercase P, and then presses [Λ] to return to the first version; (2 keys)

4. The microprocessor then sets the device keyboard to the first version of the English alphabet keyboard. The operator directly presses E for lowercase e, and then presses the switch key [※; (1 key)

5. The microprocessor then sets the device keyboard to be a punctuation keyboard. The operator presses [Shift] + number keys [3] to get the punctuation symbol "!" (Assuming that the punctuation symbol "!" Is defined on number key 3);

6. The microprocessor resets the device keyboard to be the first version of the English alphabet keyboard. The operator presses the enter confirmation key [Enter], and the input is completed.

Industrial applicability

Advantages of the present invention: Since the present invention adopts a typepad graphic simulation keyboard display mode, the English letters or English letters and characters are arranged on several layouts, or the English letters are defined on the keyboard of the device, so the user can see at a glance Seeing characters entering characters, seeing symbols, can easily and accurately input English and punctuation marks, which is simpler, faster and more accurate than the current sequential input method.

In summary, the essence of the present invention is to use letterpress mode or to simulate the keyboard to display English letters and characters on several layouts, so that users can input from the device keyboard by referring to the simulated keyboard; or to divide the English letters into editions. The definition is on the keyboard of the device, so that the user inputs from the device keyboard according to the definition of the device keyboard. Therefore, no matter how many English alphabets or characters are divided into, how many letters or characters each edition contains, what form of display layout is used, which function keys are set, etc., it is within the scope of the claims of the present invention. All the same or equivalent schemes made according to the essence of the present invention shall be regarded as within the scope of patent protection of the present invention.

Claims

Rights request

1. A nine-key English letterpress input method used on a device having a logic operation component, a data storage component, a display component, and a keyboard, the steps are:

1.1 Define the display layout of the simulated keyboard

Display the simulated keyboard on the display part, divide the twenty-six English letters into several versions and display them on the simulated keyboard, assign the English letters in each version to the number keys starting from 1 on the simulated keyboard, and define the functions on the simulated keyboard Key, the function key includes a plate change key, a space key, a shift key;

1.2 When the device prompts for input, follow these steps to enter English:

1.2.3 According to the determined situation of the simulated keyboard keys:

If it has been assigned a numeric key, it means that the input is the lower case letter of the key position on the current analog keyboard, then remove the lower case letter from the storage part, put it in the text area, and go to step 1.2.2; if it is a shift Key + 巳 assigned number key, it means that the input is the capital letter of the key position on the current analog keyboard, then remove the capital letter from the storage part, put it into the display text area, go to step

1.2.2;

If it is a version change key, which indicates that the operator wants to input letters of other versions, the function keys and the corresponding English letters are displayed on the display part in the form of an analog keyboard, go to step 1.2.2;

If it is the input confirmation key of the device, the content of the displayed text area is taken out and processed accordingly, and the above input process ends.

2.—A nine-key English letterpress input method used on a device with a logic operation component, a data storage component, a display component, and a keyboard. The steps are:

2.1 Define the display layout of the simulated keyboard

Display the simulated keyboard on the display part, display the twenty-six English alphabets on the simulated keyboard, assign the English letters in each version to the number keys starting from 1 on the simulated keyboard, and put the numbers and punctuation marks like this The character version is displayed on the analog keyboard, and the characters in each version are assigned to the number keys starting from 1 on the analog keyboard. Function keys are defined on the analog keyboard. The function keys include the version key, space key, and shift key. , Switch key;

2.2.2 Read the key value of the keyboard of the device pressed by the operator with reference to the simulated keyboard, and confirm according to this key value Set the key position corresponding to the analog keyboard;

If it has been assigned a numeric key, it means that the lower case letter or character of the key position on the current analog keyboard is entered, then remove the lower case letter from the storage part and place it in the text area, go to step 2.2.2, or The character is taken out of the storage part and placed in the display text area, and then go to step 2.2.1; if it is the shift key + 巳 assigned number key, it means that the uppercase English letter of the key position on the current analog keyboard is entered, then Remove the uppercase English letter from the storage part, put it into the display text area, go to step 2.2.2;

If it is the space bar, place the space in the text area and go to step 2.2.2;

If it is a version key, it means that the operator wants to input letters or characters of other versions, then the function keys and corresponding English letters or characters are displayed on the display part in the form of an analog keyboard, go to step 2.2.2; if the input of the device is confirmed Press the key to take out the contents of the displayed text area for corresponding processing, and the input process described above ends.

3. The nine-key English letterpress input method according to claim 2, characterized in that:

In step 2.1, the characters in each edition are assigned to the number keys starting from 1 on the analog keyboard in the format of two characters above and below each key position;

In said step 2.2.3: When displaying the function keys and characters in the form of an analog keyboard, each key position displays the upper and lower characters; if the determined key position is an assigned numeric key, it means that the input is Is the lowercase or lower-case character of the key position on the current simulated keyboard, then remove the lower-case letter or lower-case character from the storage part and put it in the text area; if the determined key position is the shift key + has been The assigned numeric key indicates that the input is an uppercase English letter or upper-ranking character on the key position on the current analog keyboard, then the uppercase English letter or upper-ranking character is taken out of the storage part and put into the display text area.

The nine-key English letterpress input method according to any one of claims 1 to 3, wherein: the letters or character parts in the analog keyboard are displayed in an m x n array, where m and n are both greater than 1.

The nine-key English letterpress input method according to any one of claims 1-3, characterized in that: the letters or character parts in the analog keyboard are displayed in an l x n array, where n is greater than 1.

6. The nine-key English letterpress input method according to claim 4, wherein the letters or character portions in the simulated keyboard are displayed in a 3 X 3 array.

7.—A nine-key English letterpress input method used on a device with a logic operation part, a data storage part, and a keyboard, the steps are:

7.1 Defining the keyboard

Twenty-six English letters are divided into three editions in the order they are arranged, and the first edition includes English alphabet keys The forms of ah and punctuation switching keys, the second edition including the English alphabet key iq, and the third edition including the English alphabet key rz are defined on the number keys 1-9 of the device keyboard;

7.2 When prompted by the device, enter English in the following steps:

7.21 Set the keyboard of the current device as the first version of the English alphabet keyboard;

7.22 Read the key position of the keyboard of the device pressed by the operator, and perform the following processing according to the key position:

If it is a number key that has been defined, it means that the lower case letter of the key position on the current keyboard is entered, then the lower case letter is taken out from the storage part and displayed in the text area, and then go to step 7.22;

If it is a shift key + a defined number key, it means that the uppercase letter of the key position on the current keyboard is entered, then remove the uppercase letter from the storage part and place it in the display text area, go to step 7.22; if it is the space bar , Then put the space in the text area, go to step 7.22;

If it is a version change key, it means that the operator wants to input letters of other versions, then set the current keyboard to the English letter keyboard of the corresponding version, go to step 7.22;

8. The nine-key English letterpress input method according to claim 7, characterized in that:

In step 7.1, common punctuation marks are also defined on the number keys starting from 1 on the device keyboard. In step 7.22, if the determined key position is a punctuation switching key, it indicates that the operator wants to input people. Punctuation marks, set the current device keyboard to be a punctuation keyboard, and continue to read the key positions of the device keyboard pressed by the operator. If the key positions are numeric keys, it means that the input is the number of the key position on the current device keyboard. , Then remove the number from the storage part, put it in the display text area, and then go to step 7.21; if the key position is the shift key + the defined number key, it means that the input is the key position on the keyboard of the current device The punctuation mark, remove the punctuation mark from the storage part, put it in the text area, and then go to step 7.21.

9. The nine-key English letterpress input method according to claim 7, characterized in that the shift key, space key, confirmation key, and key of the plate change defined on the keyboard of the device are "*" and "0", respectively. , "#",

"Λ" and "V".

10. The nine-key English letterpress input method according to claim 7, wherein the common punctuation marks include ",", ".", "!", "?".