WO2007055545A1 - Method for inputting letters - Google Patents

Method for inputting letters Download PDF

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Publication number
WO2007055545A1
WO2007055545A1 PCT/KR2006/004744 KR2006004744W WO2007055545A1 WO 2007055545 A1 WO2007055545 A1 WO 2007055545A1 KR 2006004744 W KR2006004744 W KR 2006004744W WO 2007055545 A1 WO2007055545 A1 WO 2007055545A1
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Prior art keywords
letter
signal
signals
input
letters
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PCT/KR2006/004744
Other languages
French (fr)
Inventor
Song Hak Ji
Original Assignee
Song Hak Ji
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Publication date
Priority claimed from KR1020060110792A external-priority patent/KR100852020B1/en
Application filed by Song Hak Ji filed Critical Song Hak Ji
Publication of WO2007055545A1 publication Critical patent/WO2007055545A1/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233Character input methods

Definitions

  • the present invention relates to a method for inputting letters, in which a letter input device capable of generating at least four signals is used, and letters are inputted by allowing signals obtained by combining at least one of the signals to non- overlappingly correspond to letters, numerals, etc, and more particularly to a method for inputting letters, in which a letter input device capable of generating at least four signals is used instead of utilizing a keypad of a general type such as a keyboard, and letters, numerals and special letters are generated by allowing the generated signals to non-overlappingly correspond to Hangeul consonants, Hangeul vowels, English alphabet uppercase letters, English alphabet lowercase letters, Hiragana, Katagana, numerals, special letters, etc.
  • keyboard In general, letters are inputted through a letter keyboard type of keypad (hereinafter, referred to as keyboard) such as a keyboard.
  • a keyboard is mainly used in terms of letter input speed and convenience as compared to other input devices.
  • a letter input method using a keyboard has the following problems : first, it is necessary to use both hands in order to increase input speed. Of course, letters can be inputted using only one hand, but it is very inconvenient in terms of functionality as well as speed. Specifically, an existing keyboard may cause inconvenience to disabled persons capable of using only one hand, or persons working in environments allowing use of only one hand; second, a mouse is used as the main input device, instead of a keyboard, in a Graphic User Interface (GUI) environment, particularly, a web-based program environment such as the Internet. Further, in order to input letters for a search window or information input while using a mouse, a keyboard must be essentially used instead of the mouse. The alternate use of the mouse and the keyboard for input of only several letters may be inconvenient; and last, a currently used keyboard is convenient, but it occupies a large space.
  • GUI Graphic User Interface
  • the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to overcome the inconvenience of alternate use of a mouse and a keyboard, and to improve special convenience in the current user environments. It is another object of the present invention to provide a new letter input method different from the current letter input method, and to achieve the new letter input method by using a letter input device including a wheel mouse, a touchpad and a trackball, which are being typically used, or several combination buttons, etc.
  • a method for inputting letters the method using a letter input device capable of generating at least four signals, the method including the steps of: generating combination signals obtained by combining one or more signals of the four signals through the letter input device; and allowing the combination signals to non-overlappingly correspond to a syllabic letter and a phonemic letter of a letter, numerals or special letters, processing the detected combination signals through a predetermined operation, and generating the syllabic letter, the phonemic letter, the numerals or the special letters corresponding to results of the processing.
  • the letter input device generates signals through at least four buttons or an input element, generates a long signal or a short signal according to movement distances in a predetermined direction, generates a reverse long signal or a reverse short signal according to movement distances in a direction opposite to the predetermined direction, and designates one of the signals as a letter conversion signal.
  • the numerals are generated by allowing numeral signals obtained by combining one or more signals of the signals to non-overlappingly correspond to Arabic numerals 1 to 9.
  • alphabetical letters are generated by allowing alphabetical signals obtained by sequentially combining one or more signals of the signals to non-overlappingly correspond to alphabetical letters .
  • movement in a predetermined direction and movement in a direction opposite to the predetermined direction in the letter input device are implemented through at least one of before and after movement, right and left movement, rotation movement, and up and down movement.
  • the movement in the predetermined direction and the movement in the direction opposite to the predetermined direction can be implemented through at least one of a wheel mouse, a touchpad, a trackball, and a predetermined number of buttons corresponding to the signals.
  • the long signal, the short signal, the reverse long signal, and the reverse short signal are separately generated from one another according to the movement distances in the predetermined direction and the movement distances in the direction opposite to the predetermined direction, the long signal is distinguished from the short signal according to deviation from a range of the movement distances or passage of a specific movement distance point, and the reverse long signal is distinguished from the reverse short signal according to the deviation from the range of the movement distances or the passage of the specific movement distance point.
  • the letter input device further includes an input state conversion function key, and can convert at least one input state of uppercase letter generation, lowercase letter generation, numeral generation and specific letter generation.
  • a method for inputting letters by using first to third input signals and a completion signal including the steps of: arranging letters by grouping the letters into three groups to correspond to the first to third input signals; inputting a selected one of the first to third input signals more than once, thereby inputting a letter corresponding to a number of inputs from among letters arranged to the selected input signal; and inputting the completion signal once, thereby entering an input state of a subsequent letter to be inputted.
  • the letters of the three groups which are respectively arranged to correspond to the first to third input signals, are distributed to first and second letter groups, respectively, and, in the step of inputting the letter, the selected input signal of the first to third input signals is inputted more than once, so that the letter corresponding to the number of inputs in the first letter group allocated to the selected input signal is inputted.
  • the third input signal is inputted more than once, so that a letter corresponding to the number of inputs in the second letter group allocated to the selected input signal is inputted.
  • the method further includes a step of inputting a space by inputting the completion signal twice .
  • the method further includes a step of shifting an input state by inputting the completion signal once when one of the first to third input signals is not inputted.
  • Letters used for the present specification include numerals if the situation requires. Inputtable letters may be representatively classified as Hangeul, English or numerals. However, in the present invention, the
  • Inputtable letters are not limited to Hangeul, English or numerals, and include phonograms, which currently exist or have already disappeared, as well as special letters and symbols.
  • a phonogram is classified as a syllabic letter expressing sounds by the syllable, or a phonemic letter expressing an alphabet and sounds by the phoneme.
  • a phonemic letter is a letter in which a unit expressing sounds is smaller than a syllable, which includes the alphabet, Hangeul, etc., expressing sound by combining phonemes of consonants and vowels.
  • Hangeul expresses sounds existing in the world by letters by combining 5 fortises, 11 diphtongs, etc., in addition to 24 basic consonants and vowels.
  • a syllabic letter is a letter in which a unit expressing sounds consists of a syllable.
  • a representative example thereof is a kana letter (Japanese letter) .
  • Japanese letters express sounds existing in the world by letters by using 50 syllables (actually, about 100 syllables if including sonance and germinative consonants) referred to as 50 pitches.
  • the currently used mouse has a wheel between two buttons in order to conveniently search for the Internet or documents .
  • the original purpose of the wheel is to conveniently shift a screen by scrolling the screen upward or downward within a monitor by using the wheel .
  • the present invention generates signals from the movement of fingers by using a wheel mouse capable of using the movement of a wheel, a touch pad allowing up/down/right/left movement, a trackball, or a button type of letter input device capable of generating at least four signals, and generates letters corresponding to the signals.
  • a letter input device includes an input device unit for generating and outputting signals from the movement of fingers, a memory unit for temporarily storing the outputted signals, an operation processor for operating the signals and generating letters from the operation results, and a signal controller for transferring the letters to a system.
  • the long and the short of a signal are received from a letter input device on the basis of up and down, right and left, before and after, or rotation movement signals.
  • the signal may be classified as a long signal or a short signal according to movement distances or rotation angles in a predetermined direction. Further, the signal may be classified as a reverse long signal or a reverse short signal according to movement distances or rotation angles in a direction opposite to the predetermined direction.
  • movement signals such as the long signal, the short signal, the reverse long signal and the reverse short signal will be referred to as semitone signals because they are uncompleted letter signals.
  • a short signal generated upward or a long signal generated upward may be indicated by a short signal ( -i- )
  • a short signal generated downward or a long signal generated downward may be indicated by a reverse short signal ( t )
  • Up and down movement signals may be referred to as primary semitone signals, and right/left signals may be referred to as secondary semitone signals. This will be described in more detail.
  • an input device e.g. a touchpad and trackball
  • a touchpad and trackball capable of receiving right/left finger movement signals can use secondary semitone signals .
  • Numerals are grouped into the first group (1,2,3), the second group (4,5,6) and the third group (7,8,9), and semitone signals are sequentially configured.
  • the third group starts from ( -I )
  • the second group starts from
  • T ( T ) signal is added to a previous English letter, and then is converted to the subsequent letter in the same group .
  • English letters may be classified as uppercase letters or lowercase letters .
  • a mutual conversion for these letters is implemented by using an uppercase/lowercase letter conversion button or by inputting a semitone signal t ) similarly to a consonant/vowel conversion in Hangeul .
  • Hangeul can be inputted using the same principle as that in the case of numerals and English.
  • One of the four signals is designated as an input state conversion function key, or an input state conversion function key is additionally provided to the letter input device of the present invention, so that it is possible to perform a conversion to one of a Hangeul input state, a numeral input state and an English input state.
  • an input state conversion in the case of Hangeul input, a consonant input state can be distinguished from a vowel input state.
  • an uppercase letter input state can also be distinguished from a lowercase letter input state.
  • the four types of signals have different input functions according to Hangeul letters, English letters or numerals.
  • Numerals can be inputted by inputting Arabic numerals 0 to 9. Since Arabic numerals consist of 10 numerals, conversion input to a different numeral signal is possible by repeating a basic numeral signal. Hereinafter, a method for inputting numerals will be described with reference to the Table below.
  • representative numerals are allocated to the first to third input signals, respectively.
  • numerals 1, 4 and 7 are allocated to the first to third input signals, respectively.
  • a completion signal reports that converting numerals inputted by the three letter signals to subsequent numerals has been completed, or inputting numerals has been completed.
  • Arabic numerals can be inputted using the four signals. In detail, it can be achieved in the following three manners .
  • a method for inputting numeral 8931 will be described. If the third input signal is inputted twice and a completion signal is inputted, input of numeral 8 ends. Then, if the third input signal is inputted three times, numeral 9 is inputted. The reason for inputting the third input signal again after inputting the completion signal is because numerals within the same group are continuously inputted twice.
  • the same signal is continuously and repeatedly inputted to change a numeral, and automatic input is implemented if input is momentarily stopped in a numeral to be inputted.
  • (1,2,3), (4,5,6) and (7,8,9,0) are respectively allocated to the three input signals, and the same input signal is continuously repeated, so that a conversion to a subsequent numeral can be performed.
  • the completion signal Since it is not necessary to input a completion signal, the completion signal is not inputted when several numerals are inputted.
  • uppercase letters are distinguished from lowercase letters.
  • Basic input is implemented based on lowercase letters, and uppercase letters are inputted by an uppercase/lowercase letter conversion signal. Since uppercase letters are basically written at the head of a sentence, uppercase letters are inputted if the uppercase/lowercase letter conversion signal is received in the beginning portion of the sentence or after a space is inputted. In other cases, lowercase letters are automatically inputted.
  • a space is inputted by consecutively inputting a uppercase/lowercase letter input signal twice in the course of letter input. Otherwise, the space may also be inputted by inputting the uppercase/lowercase letter input signal long.
  • English letters can be inputted by four methods according to determination schemes of the basic representative letters .
  • the four methods includes a method simply using alphabetical order, a method conforming to a scheme applied to a wireless terminal keyboard, a method using the use frequency of alphabets, and a method employing vowels of alphabets as a reference .
  • the first to third input signals are signals for inputting most English letters. Each input signal is repeated, so that another English letter is inputted.
  • A is inputted by inputting the first input signal once
  • S is inputted by inputting the second input signal twice.
  • the third input signal (conversion signal) is a signal for inputting one letter (M) . Simultaneously, when an input signal previously inputted exists, the third input signal is a signal for converting the letter. If there is no input signal previously inputted, a specific letter (e.g. M) allocated to the signal is inputted.
  • E is inputted by inputting the first input signal twice and then inputting the third input signal (conversion signal) once.
  • X is inputted by inputting the second input signal three times and then inputting the third input signal (conversion signal) twice .
  • the completion signal (uppercase/lowercase letter conversion signal) is a signal for converting the uppercase letters and lowercase letters, or inputting a space .
  • completion signal (uppercase/lowercase letter conversion signal) is consecutively inputted twice, a space is inputted.
  • an input completion signal for the letter is recognized and thus a new letter can be inputted.
  • the completion signal (uppercase/lowercase letter conversion signal) is inputted once, an uppercase letter can be inputted.
  • the first input signal is inputted four times and the third input signal (conversion signal) is inputted once, K is inputted.
  • the table below shows the method for inputting English letters by using the scheme applied to a wireless terminal keyboard.
  • the table below shows the method for inputting English letters by using the use frequency of alphabets.
  • the table below shows the method for inputting English letters by employing vowels of alphabets as a reference.
  • letters are inputted by using only one input signal at minimum, so that the intuition of letter input can be improved and input convenience can be provided to users. Further, a conversion to another letter can be easily performed.
  • Hangeul can be inputted using the same principle as that in the case of numerals and English.
  • a letter input method of the present invention signals are generated from several finger movements through a simple letter input device, and are able to correspond to Hangeul, numerals, English, etc., so that letters can be generated. Accordingly, it is possible to solve problems in which an existing keyboard occupies a large space and a wide work space must be ensured. Further, the letter input method is employed as a new letter input method of a wireless terminal showing a tendency of miniaturization as time goes by, so that letters can be more easily inputted. Furthermore, it is possible to provide a more convenient letter input method to a user capable of only one hand.

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Abstract

Disclosed is a method for inputting letters. The method uses a letter input device capable of generating at least four signals. The method includes the steps of : generating combination signals obtained by combining one or more signals of the four signals through the letter input device; and allowing the combination signals to non-overlappingly correspond to a syllabic letter and a phonemic letter of a letter, numerals or special letters, processing the detected combination signals through a predetermined operation, and generating the syllabic letter, the phonemic letter, the numerals or the special letters corresponding to results of the processing .

Description

METHOD FOR INPUTTING LETTERS
Technical Field
The present invention relates to a method for inputting letters, in which a letter input device capable of generating at least four signals is used, and letters are inputted by allowing signals obtained by combining at least one of the signals to non- overlappingly correspond to letters, numerals, etc, and more particularly to a method for inputting letters, in which a letter input device capable of generating at least four signals is used instead of utilizing a keypad of a general type such as a keyboard, and letters, numerals and special letters are generated by allowing the generated signals to non-overlappingly correspond to Hangeul consonants, Hangeul vowels, English alphabet uppercase letters, English alphabet lowercase letters, Hiragana, Katagana, numerals, special letters, etc.
Background Art
In general, letters are inputted through a letter keyboard type of keypad (hereinafter, referred to as keyboard) such as a keyboard. A keyboard is mainly used in terms of letter input speed and convenience as compared to other input devices.
However, a letter input method using a keyboard has the following problems : first, it is necessary to use both hands in order to increase input speed. Of course, letters can be inputted using only one hand, but it is very inconvenient in terms of functionality as well as speed. Specifically, an existing keyboard may cause inconvenience to disabled persons capable of using only one hand, or persons working in environments allowing use of only one hand; second, a mouse is used as the main input device, instead of a keyboard, in a Graphic User Interface (GUI) environment, particularly, a web-based program environment such as the Internet. Further, in order to input letters for a search window or information input while using a mouse, a keyboard must be essentially used instead of the mouse. The alternate use of the mouse and the keyboard for input of only several letters may be inconvenient; and last, a currently used keyboard is convenient, but it occupies a large space.
Disclosure of the Invention Technical problem A monitor and a body have been developed in terms of their shapes and sizes, and thus a larger work space can be ensured. However, a keyboard has almost unchanged shape and size from its invention time to the present time. Specifically, recent wireless terminals have been developed to a level rivaling with a conventional PC by adding various functions thereto. However, in order to sufficiently utilize such functions, the input method of a wireless terminal must be developed into a different type capable of effectively inputting letters in a narrow space, instead of a conventional keyboard input method .
Technical solution
Therefore, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to overcome the inconvenience of alternate use of a mouse and a keyboard, and to improve special convenience in the current user environments. It is another object of the present invention to provide a new letter input method different from the current letter input method, and to achieve the new letter input method by using a letter input device including a wheel mouse, a touchpad and a trackball, which are being typically used, or several combination buttons, etc.
Best Mode for Carrying Out the Invention According to one aspect of the present invention, there is provided a method for inputting letters, the method using a letter input device capable of generating at least four signals, the method including the steps of: generating combination signals obtained by combining one or more signals of the four signals through the letter input device; and allowing the combination signals to non-overlappingly correspond to a syllabic letter and a phonemic letter of a letter, numerals or special letters, processing the detected combination signals through a predetermined operation, and generating the syllabic letter, the phonemic letter, the numerals or the special letters corresponding to results of the processing.
It is preferred that the letter input device generates signals through at least four buttons or an input element, generates a long signal or a short signal according to movement distances in a predetermined direction, generates a reverse long signal or a reverse short signal according to movement distances in a direction opposite to the predetermined direction, and designates one of the signals as a letter conversion signal.
It is possible to input letters through the method. In the step of generating the letters, the numerals are generated by allowing numeral signals obtained by combining one or more signals of the signals to non-overlappingly correspond to Arabic numerals 1 to 9.
It is possible to input alphabets through the method. In the step of generating the letters, alphabetical letters are generated by allowing alphabetical signals obtained by sequentially combining one or more signals of the signals to non-overlappingly correspond to alphabetical letters .
In the method, movement in a predetermined direction and movement in a direction opposite to the predetermined direction in the letter input device are implemented through at least one of before and after movement, right and left movement, rotation movement, and up and down movement. Further, the movement in the predetermined direction and the movement in the direction opposite to the predetermined direction can be implemented through at least one of a wheel mouse, a touchpad, a trackball, and a predetermined number of buttons corresponding to the signals.
Further, the long signal, the short signal, the reverse long signal, and the reverse short signal are separately generated from one another according to the movement distances in the predetermined direction and the movement distances in the direction opposite to the predetermined direction, the long signal is distinguished from the short signal according to deviation from a range of the movement distances or passage of a specific movement distance point, and the reverse long signal is distinguished from the reverse short signal according to the deviation from the range of the movement distances or the passage of the specific movement distance point.
Further, the letter input device further includes an input state conversion function key, and can convert at least one input state of uppercase letter generation, lowercase letter generation, numeral generation and specific letter generation.
According to another aspect of the present invention, there is provided a method for inputting letters by using first to third input signals and a completion signal, the method including the steps of: arranging letters by grouping the letters into three groups to correspond to the first to third input signals; inputting a selected one of the first to third input signals more than once, thereby inputting a letter corresponding to a number of inputs from among letters arranged to the selected input signal; and inputting the completion signal once, thereby entering an input state of a subsequent letter to be inputted.
It is preferred that, in the step of arranging the letters, the letters of the three groups, which are respectively arranged to correspond to the first to third input signals, are distributed to first and second letter groups, respectively, and, in the step of inputting the letter, the selected input signal of the first to third input signals is inputted more than once, so that the letter corresponding to the number of inputs in the first letter group allocated to the selected input signal is inputted.
It is preferred that, in the step of inputting the letter, after the selected input signal of the first to third input signals is inputted more than once, the third input signal is inputted more than once, so that a letter corresponding to the number of inputs in the second letter group allocated to the selected input signal is inputted.
It is preferred that the method further includes a step of inputting a space by inputting the completion signal twice .
It is preferred that the method further includes a step of shifting an input state by inputting the completion signal once when one of the first to third input signals is not inputted.
Mode for Carrying Out the Invention Hereinafter, a letter input method for inputting inputtable letters according to the present invention will be described in more detail.
Letters used for the present specification include numerals if the situation requires. Inputtable letters may be representatively classified as Hangeul, English or numerals. However, in the present invention, the
Inputtable letters are not limited to Hangeul, English or numerals, and include phonograms, which currently exist or have already disappeared, as well as special letters and symbols.
A phonogram is classified as a syllabic letter expressing sounds by the syllable, or a phonemic letter expressing an alphabet and sounds by the phoneme.
A phonemic letter is a letter in which a unit expressing sounds is smaller than a syllable, which includes the alphabet, Hangeul, etc., expressing sound by combining phonemes of consonants and vowels. Hangeul expresses sounds existing in the world by letters by combining 5 fortises, 11 diphtongs, etc., in addition to 24 basic consonants and vowels.
A syllabic letter is a letter in which a unit expressing sounds consists of a syllable. A representative example thereof is a kana letter (Japanese letter) . Japanese letters express sounds existing in the world by letters by using 50 syllables (actually, about 100 syllables if including sonance and germinative consonants) referred to as 50 pitches.
In the present invention, the characteristics of Hangeul, numerals and English are analyzed, and are symbolized as semitone signs. In the following description, since the symbolization of Hangeul, numerals and English is only an example, equivalents employing the same principle and technical construction can belong to the scope of the claims of the present invention if corresponding signs are different.
(First Embodiment) Hereinafter, a letter input method according to a first embodiment of the present invention will be described.
Generally, the currently used mouse has a wheel between two buttons in order to conveniently search for the Internet or documents . The original purpose of the wheel is to conveniently shift a screen by scrolling the screen upward or downward within a monitor by using the wheel .
The present invention generates signals from the movement of fingers by using a wheel mouse capable of using the movement of a wheel, a touch pad allowing up/down/right/left movement, a trackball, or a button type of letter input device capable of generating at least four signals, and generates letters corresponding to the signals. In the present invention, it is further preferred that a letter input device includes an input device unit for generating and outputting signals from the movement of fingers, a memory unit for temporarily storing the outputted signals, an operation processor for operating the signals and generating letters from the operation results, and a signal controller for transferring the letters to a system.
The long and the short of a signal are received from a letter input device on the basis of up and down, right and left, before and after, or rotation movement signals. The signal may be classified as a long signal or a short signal according to movement distances or rotation angles in a predetermined direction. Further, the signal may be classified as a reverse long signal or a reverse short signal according to movement distances or rotation angles in a direction opposite to the predetermined direction.
In the present specification, movement signals such as the long signal, the short signal, the reverse long signal and the reverse short signal will be referred to as semitone signals because they are uncompleted letter signals.
When semitone signals are generated using a wheel mouse, a short signal generated upward or a long signal generated upward may be indicated by a short signal ( -i- )
and a long signal ( I^), respectively. Further, a short signal generated downward or a long signal generated downward may be indicated by a reverse short signal ( t )
and a reverse long signal ( TI ), respectively. Since the indication method using arrows corresponds to only one of the methods using various marks, which can generate signals from the movement of the letter input device in the present invention, it is of course to use various marks and indication methods. For example, signals (a long downward signal and a short upward signal generated once) are respectively
indicated by ( ▼ t ) . Up and down movement signals may be referred to as primary semitone signals, and right/left signals may be referred to as secondary semitone signals. This will be described in more detail.
In addition to this, an input device (e.g. a touchpad and trackball) capable of receiving right/left finger movement signals can use secondary semitone signals .
<Secondary semitone signal structure>
Figure imgf000010_0001
In the present invention, since a wheel mouse, a touchpad, a trackball, etc., used as the letter input device are only an example, equivalents capable of generating the same movement signals can be letter input devices available for the present invention regardless of the name of a corresponding input device.
1. Numerals
Numerals are grouped into the first group (1,2,3), the second group (4,5,6) and the third group (7,8,9), and semitone signals are sequentially configured.
In the first semitone signal in these groups, the third group starts from ( -I ) , the second group starts from
and the first group starts from ( t A
repetitively used numeral 0 is indicated by t ).
Figure imgf000010_0002
Figure imgf000011_0001
When numerals are inputted, since numerals corresponding to semitone signals are only an example, Arabic numerals can variously correspond to semitone signals. Even when corresponding numerals change, it should be noted that it belongs to the technical configuration range of the present invention.
2. English
26 English letters are grouped into nine groups currently standardized.
In the case of English, since vowels and consonants are mixed, it is impossible to distinguish the vowels from the consonants according to their characteristics. On account of this, semitone signals are configured in alphabetical order. In each group, a
( T ) signal is added to a previous English letter, and then is converted to the subsequent letter in the same group .
Figure imgf000011_0002
Figure imgf000012_0001
English letters may be classified as uppercase letters or lowercase letters . A mutual conversion for these letters is implemented by using an uppercase/lowercase letter conversion button or by inputting a semitone signal t ) similarly to a consonant/vowel conversion in Hangeul .
When English letters are inputted, since alphabets corresponding to semitone signals are only an example, the alphabets can non-overlappingly correspond to semitone signals in various schemes and types. Even when alphabets corresponding to semitone signals change, it should be noted that they belong to the technical configuration range of the present invention.
3. Hangeul input
Hangeul can be inputted using the same principle as that in the case of numerals and English.
4. Input state conversion in Hangeul, English and numerals
One of the four signals is designated as an input state conversion function key, or an input state conversion function key is additionally provided to the letter input device of the present invention, so that it is possible to perform a conversion to one of a Hangeul input state, a numeral input state and an English input state. In an input state conversion, in the case of Hangeul input, a consonant input state can be distinguished from a vowel input state. In the case of English input, an uppercase letter input state can also be distinguished from a lowercase letter input state.
(Second Embodiment)
Hereinafter, a letter input method according to a second embodiment of the present invention will be described. In the present embodiment, it is possible to input letters used on an existing keyboard, i.e. spaces between letters as well as Hangeul letters, English letters and numerals, by using four types of signals.
The four types of signals have different input functions according to Hangeul letters, English letters or numerals.
Hereinafter, a detailed input method of each letter will be described.
1. Numerals
Numerals can be inputted by inputting Arabic numerals 0 to 9. Since Arabic numerals consist of 10 numerals, conversion input to a different numeral signal is possible by repeating a basic numeral signal. Hereinafter, a method for inputting numerals will be described with reference to the Table below.
Figure imgf000013_0001
Figure imgf000014_0001
First, representative numerals are allocated to the first to third input signals, respectively. For example, numerals 1, 4 and 7 are allocated to the first to third input signals, respectively.
A completion signal reports that converting numerals inputted by the three letter signals to subsequent numerals has been completed, or inputting numerals has been completed. As described above, Arabic numerals can be inputted using the four signals. In detail, it can be achieved in the following three manners .
(1) Numeral input by a completion key value In this method, the same letter signal is continuously and repeatedly sent to change a numeral, and a numeral is eventually inputted by a completion signal .
(1,2,3), (4,5,6) and (7,8,9,0) are respectively allocated to the three letter signals as shown in the Table above, and the same input signal is repeated, so that a desired numeral can be converted and inputted.
When a numeral to be inputted does not belong to the group of a numeral being not inputted, another numeral can also be inputted by inputting another input signal instead of the completion signal.
For example, a method for inputting numeral 249 will be described.
If the first input signal is inputted twice, numeral 2 is inputted. Then, if the second input signal is inputted once, numeral 4 is inputted. Last, if the third input signal is inputted three times, numeral 9 is inputted. As a result, input of 249 is completed.
In another example, a method for inputting numeral 8931 will be described. If the third input signal is inputted twice and a completion signal is inputted, input of numeral 8 ends. Then, if the third input signal is inputted three times, numeral 9 is inputted. The reason for inputting the third input signal again after inputting the completion signal is because numerals within the same group are continuously inputted twice.
Next, if the first input signal is inputted three times, numeral 3 is inputted. Then, the completion signal is inputted. Last, if the first input signal is inputted once, numeral 1 is inputted.
By using this method, a user can clearly recognize a numeral to be inputted and then input the numeral by sending the completion signal.
(2) Numeral input by time difference
In this method, the same signal is continuously and repeatedly inputted to change a numeral, and automatic input is implemented if input is momentarily stopped in a numeral to be inputted. (1,2,3), (4,5,6) and (7,8,9,0) are respectively allocated to the three input signals, and the same input signal is continuously repeated, so that a conversion to a subsequent numeral can be performed.
Since it is not necessary to input a completion signal, the completion signal is not inputted when several numerals are inputted.
For example, a method for inputting numeral 8931 will be described.
If the third input signal is inputted twice and input is momentarily stopped, numeral 8 is inputted. Then, if the third input signal is inputted three times and input is momentarily stopped, numeral 9 is inputted. Next, the first input signal is inputted three times and input is momentarily stopped, numeral 3 is inputted. Last, the first input signal is inputted once and input is momentarily stopped, numeral 1 is inputted.
2. English
In the case of English letters, basic representative letters are selected and allocated to the first to third input signals, and these input signals are repeatedly inputted, so that a conversion to a desired representative letter is implemented. Then, letters are converted and inputted by a conversion signal in alphabetical order on the basis of the representative letters .
In English letters, uppercase letters are distinguished from lowercase letters. Basic input is implemented based on lowercase letters, and uppercase letters are inputted by an uppercase/lowercase letter conversion signal. Since uppercase letters are basically written at the head of a sentence, uppercase letters are inputted if the uppercase/lowercase letter conversion signal is received in the beginning portion of the sentence or after a space is inputted. In other cases, lowercase letters are automatically inputted.
A space is inputted by consecutively inputting a uppercase/lowercase letter input signal twice in the course of letter input. Otherwise, the space may also be inputted by inputting the uppercase/lowercase letter input signal long.
English letters can be inputted by four methods according to determination schemes of the basic representative letters . The four methods includes a method simply using alphabetical order, a method conforming to a scheme applied to a wireless terminal keyboard, a method using the use frequency of alphabets, and a method employing vowels of alphabets as a reference .
Hereinafter, the method for inputting English letters in alphabetical order will be described with reference to the Table below.
Figure imgf000017_0001
As shown in the Table above, the first to third input signals are signals for inputting most English letters. Each input signal is repeated, so that another English letter is inputted.
For example, A is inputted by inputting the first input signal once, and S is inputted by inputting the second input signal twice.
The third input signal (conversion signal) is a signal for inputting one letter (M) . Simultaneously, when an input signal previously inputted exists, the third input signal is a signal for converting the letter. If there is no input signal previously inputted, a specific letter (e.g. M) allocated to the signal is inputted.
For example, E is inputted by inputting the first input signal twice and then inputting the third input signal (conversion signal) once. X is inputted by inputting the second input signal three times and then inputting the third input signal (conversion signal) twice .
The completion signal (uppercase/lowercase letter conversion signal) is a signal for converting the uppercase letters and lowercase letters, or inputting a space .
When there is no input signal previously inputted, if the completion signal (uppercase/lowercase letter conversion signal) is inputted, the letter input type at the present input time point is converted from lowercase letters to uppercase letters.
If the completion signal (uppercase/lowercase letter conversion signal) is consecutively inputted twice, a space is inputted. When there is an inputted letter in the present state, an input completion signal for the letter is recognized and thus a new letter can be inputted.
For example, in the case of inputting Kim, the completion signal (uppercase/lowercase letter conversion signal) is inputted once, an uppercase letter can be inputted. Herein, if the first input signal is inputted four times and the third input signal (conversion signal) is inputted once, K is inputted.
Then, if the completion signal (uppercase/lowercase letter conversion signal) is inputted, a lowercase letter can be inputted. Herein, if the first input signal is inputted three times and the third input signal (conversion signal) is inputted twice, i is inputted.
Next, if the completion signal (uppercase/lowercase letter conversion signal) is inputted, a subsequent letter can be inputted. Herein, if the third input signal (conversion signal) is inputted once, m is inputted. In this way, English letters can be inputted.
The table below shows the method for inputting English letters by using the scheme applied to a wireless terminal keyboard.
Figure imgf000019_0001
The table below shows the method for inputting English letters by using the use frequency of alphabets.
Figure imgf000020_0001
The table below shows the method for inputting English letters by employing vowels of alphabets as a reference.
Figure imgf000020_0002
Figure imgf000021_0001
In the present embodiment, letters are inputted by using only one input signal at minimum, so that the intuition of letter input can be improved and input convenience can be provided to users. Further, a conversion to another letter can be easily performed.
3. Hangeul
Hangeul can be inputted using the same principle as that in the case of numerals and English.
Industrial Applicability
As can be seen from the foregoing, according to a letter input method of the present invention, signals are generated from several finger movements through a simple letter input device, and are able to correspond to Hangeul, numerals, English, etc., so that letters can be generated. Accordingly, it is possible to solve problems in which an existing keyboard occupies a large space and a wide work space must be ensured. Further, the letter input method is employed as a new letter input method of a wireless terminal showing a tendency of miniaturization as time goes by, so that letters can be more easily inputted. Furthermore, it is possible to provide a more convenient letter input method to a user capable of only one hand.
While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment and the drawings, but, on the contrary, it is intended to cover various modifications and variations within the spirit and scope of the appended claims .

Claims

Claims
1. A method for inputting letters, the method using a letter input device capable of generating at least four signals, the method comprising the steps of: generating combination signals obtained by combining one or more signals of the four signals through the letter input device; and allowing the combination signals to non- overlappingly correspond to a syllabic letter and a phonemic letter of a letter, numerals or special letters, processing the detected combination signals through a predetermined operation, and generating the syllabic letter, the phonemic letter, the numerals or the special letters corresponding to results of the processing.
2. The method according to claim 1, wherein, in the step of generating the letters, the numerals are generated by allowing numeral signals obtained by combining one or more signals of the four signals to non-overlappingly correspond to Arabic numerals 1 to 9.
3. The method according to claim 1, wherein, in the step of generating the letter, alphabetical uppercase or lowercase letters are generated by allowing alphabetical signals obtained by sequentially combining one or more signals of the four signals to non- overlappingly correspond to 26 alphabetical letters.
4. The method according to claim 1, wherein the letter input device generates a long signal or a short signal according to movement distances in a predetermined direction, generates a reverse long signal or a reverse short signal according to movement distances in a direction opposite to the predetermined direction, and designates one of the signals as a letter conversion signal.
5. The method according to claim 1, wherein the letter input device generates a long signal or a short signal according to movement distances in a predetermined direction, and generates a reverse long signal or a reverse short signal according to movement distances in a direction opposite to the predetermined direction.
6. The method according to claim 4 or 5, wherein the movement in the predetermined direction and the movement in the direction opposite to the predetermined direction are implemented through at least one of before and after movement, right and left movement, rotation movement, and up and down movement.
7. The method according to claim 4 or 5, wherein the movement in the predetermined direction and the movement in the direction opposite to the predetermined direction are implemented through at least one of a wheel mouse, a touchpad, a trackball, and a predetermined number of buttons corresponding to the signals.
8. The method according to claim 4 or 5, wherein the long signal, the short signal, the reverse long signal, and the reverse short signal are separately generated from one another according to the movement distances in the predetermined direction and the movement distances in the direction opposite to the predetermined direction, the long signal is distinguished from the short signal according to deviation from a range of the movement distances or passage of a specific movement distance point, and the reverse long signal is distinguished from the reverse short signal according to the deviation from the range of the movement distances or the passage of the specific movement distance point.
9. The method according to one of claims 1 to 3, wherein the letter input device further includes an input state conversion function key, and converts at least one input state of uppercase letter generation, lowercase letter generation, numeral generation and specific letter generation.
10. A method for inputting letters by using first to third input signals and a completion signal, the method comprising the steps of: arranging letters by grouping the letters into three groups to correspond to the first to third input signals; inputting a selected one of the first to third input signals more than once, thereby inputting a letter corresponding to a number of inputs from among letters arranged to the selected input signal; and inputting the completion signal once, thereby entering an input state of a subsequent letter to be inputted.
11. The method according to claim 10, wherein, in the step of arranging the letters, the letters of the three groups, which are respectively arranged to correspond to the first to third input signals, are distributed to first and second letter groups, respectively, and, in the step of inputting the letter, the selected input signal of the first to third input signals is inputted more than once, so that the letter corresponding to the number of inputs in the first letter group allocated to the selected input signal is inputted.
12. The method according to claim 11, wherein, in the step of inputting the letter, after the selected input signal of the first to third input signals is inputted more than once, the third input signal is inputted more than once, so that a letter corresponding to the number of inputs in the second letter group allocated to the selected input signal is inputted.
13. The method according to claim 12, further comprising a step of inputting a space by inputting the completion signal twice.
14. The method according to claim 13, further comprising a step of shifting an input state by inputting the completion signal once when one of the first to third input signals is not inputted.
PCT/KR2006/004744 2005-11-11 2006-11-13 Method for inputting letters WO2007055545A1 (en)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2002312118A (en) * 2001-04-11 2002-10-25 Software Control Corp Wearable computer system
WO2003005336A1 (en) * 2001-06-29 2003-01-16 Nokia Corporation Keypads style input device for electrical devices
KR20040036462A (en) * 2002-10-26 2004-04-30 삼성전자주식회사 A character input method using a pointing device and the apparatus therefor
WO2004072837A1 (en) * 2003-02-14 2004-08-26 Ui Jin Oh The inputting device which has keys within finger’s movement and inputting method
KR20050053916A (en) * 2003-12-03 2005-06-10 삼성전자주식회사 Character input apparatus using direction keys

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002312118A (en) * 2001-04-11 2002-10-25 Software Control Corp Wearable computer system
WO2003005336A1 (en) * 2001-06-29 2003-01-16 Nokia Corporation Keypads style input device for electrical devices
KR20040036462A (en) * 2002-10-26 2004-04-30 삼성전자주식회사 A character input method using a pointing device and the apparatus therefor
WO2004072837A1 (en) * 2003-02-14 2004-08-26 Ui Jin Oh The inputting device which has keys within finger’s movement and inputting method
KR20050053916A (en) * 2003-12-03 2005-06-10 삼성전자주식회사 Character input apparatus using direction keys

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