KR100356258B1 - Keypad of a telephone terminal - Google Patents

Abstract

The keypad for the phone handset for entering Korean characters includes a basic consonant set consisting of 17 Korean consonants (a, b, c, ...., p, ㅎ, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) and a neutral A basic vowel set consisting of 10 short vowels (ㅏ, ㅑ, ㅓ, ㅕ, ..., ㅡ, ㅣ) and a double vowel 'ㅢ' is separated into consonants and vowels, respectively, and arranged in the order of the Korean vowels, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) are each placed on the same key as the corresponding single consonants (a, c, ㅂ, ㅅ, ㅈ), and two or more different consonants are not placed on one key, and the basic Consonant arrangement in which the consonant that can be synthesized by the double consonants in the consonant set are separately arranged on different keys, and vowels that can be synthesized by the vowels except for the vowels ㅡ and ㅣ of the basic vowel sets are separated into different keys. The vowel '음' is arranged in which the vowels 'ㅡ' and 'ㅣ' are arranged. The collection to be executed by the third input consists of a collection of batch placed on the same key as 'Ao' and 'l'.

Description

Keypad for Phone Handset {KEYPAD OF A TELEPHONE TERMINAL}

The present invention relates to a key arrangement of a communication terminal for inputting Hangul characters, and in particular, enables a composite input of consonants and vowels of Hangul using only a limited number of keys on a wired or wireless telephone, and does not require a separate synthesis input method. It relates to a keypad for a terminal.

Conventionally, there have been a method of inputting Hangul on a telephone using a dial key pad and a screen display unit on a telephone and a method of inputting using only a dial button of the telephone.

First, the former method arranges the Hangul consonants of each Hangul on each dial button on the telephone, and if the Hangul is to be entered, enters the Hangul consonants of the Hangul characters to be entered through the dial keypad to combine them with the selected consonants. All possible neutrals are displayed on the screen, and the user subsequently selects the characters corresponding to the Hangul characters to be entered from among the displayed initial + neutral characters by moving the direction key, and all the final characters that can be combined with the selected characters. Are combined and output on the screen, and the user finally selects a character to input from among the displayed character groups. However, in this method, the number of characters displayed on the display unit is too large to be combined, and the user has to scroll through the characters corresponding to the Hangul characters to be input. In particular, as in the case of a mobile phone terminal, If the size is limited, there is a problem in that the probability of mis-input increases.

Next, in the case of inputting Hangul characters only through the dial keypad on the phone, first, the keypad on the phone includes up to 12 keys, including 10 number pads and several function buttons such as * and #. While only the button is secured, Hangul consonants have 14 consonants (B, B, C, D, ..., P, ㅎ) and 10 short vowels (ㅏ, ㅑ, ㅓ, ㅕ, ..., ..., In addition to ㅡ, ㅣ), double consonants (ㄲ, ㄸ, ㅃ, ㅆ, ㅉ), double consonants (ㄳ, ㄶ, ㄵ, ㄺ, ㄻ, ㄽ, ㄿ, ㄾ, ㅀ, ㄼ, ㅄ) and vowels (ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅝ, ㅙ, ㅞ, ㅚ, ㅟ, ㅢ), and the number of keypads on the phone is not enough compared to the Korean alphabet. Therefore, in order to arrange the Hangul consonants and vowels in such a limited key, there are no choice but to place several consonants or vowels on one key. Referring to FIG. As shown in Fig. 1, the conventional method for arranging keys places two or more consonants or vowels on one key, with frequently used consonants or vowels in front of the keys, and infrequently used consonants behind the keys. Posted in However, such a key placement method is different for each production company, and thus, if the user is not memorizing the position of the key, that is, the arrangement state of the consonants on the key, work for inputting the desired consonants. It is inconvenient to search the keypad at all. In fact, it often occurs that it takes more time to find a key having a desired consonant than the time required to press a key for inputting a predetermined Hangul character (that is, the number of key presses).

The present invention is to solve the problems of the conventional Hangul input method or a key arrangement method for the same, and provides a keypad in which the Hangul consonants and vowels are sequentially arranged in the order of the Hangul alphabet. Through this, the user can intuitively grasp the position of the key on which the consonants or vowels are arranged, and thus, the overall Hangul input time can be reduced by saving the time required to find the corresponding key.

However, in the arrangement of the consonants on the telephone keypad arranged in this way, the technical problem for the synthesis of the consonants and the consonants should also be considered. That is, as described above, the number of Korean consonants is greater than the number of key buttons provided on the telephone, and it is common to arrange two or more consonants or vowels together on one key, but even in this case, the consonants and the vowels are arranged on the keypad. In the following, since the number of alphabets arranged on one key is too high, it is difficult to arrange only the basic consonant sets on the keypad, and the compound consonants and the compound consonants are inputted through the synthesis of these basic consonant sets. In this case, the key arrangement of the basic consonant set must satisfy a predetermined arrangement condition in order to be able to synthesize the consonant and the vowel only by successive input of a key on which the basic consonant set is arranged without using a separate synthesis key. do.

Accordingly, the present invention provides a separate function by arranging the arrangement of the Hangul consonants and vowels in order according to the order of Hangul consonants, and arranging these basic consonant sets so as to satisfy predetermined arrangement conditions for compounding the consonant and the vowel consonants. It is an object of the present invention to provide a user's convenience in inputting Korean characters by allowing a user to input a double consonant, a consonant consonant, and a consonant consonant of a Hangul alphabet without using a key.

1 is a keypad for inputting Korean characters of a conventional cellular phone terminal.

Fig. 2 is a table showing the relationship of basic consonant pairs that should not be placed on the same key for the double consonant input condition.

3 is a table showing the relationship of basic consonant pairs that should not be co-located on the same key for input of the final double consonants.

4 is a table showing the relationship of basic vowel pairs that should not be placed together on the same key for the input of a neutral double vowel.

5 is a diagram illustrating a composite input method of a double vowel according to the present invention;

6 illustrates an embodiment of a keypad for a telephone terminal according to the present invention.

7 is a diagram illustrating a Hangul input algorithm using a keypad for a telephone terminal according to the present invention.

Hereinafter, the arrangement of the keypad according to the present invention will be described in detail.

According to the present invention, a basic consonant set consisting of 17 consonants of the Hangul (a, b, c, d, ..., p, ㅎ, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) and 10 neutral short vowels (ㅏ) Basic vowel sets consisting of, ㅑ, ㅓ, ㅕ, ..., ㅡ, ㅣ) are divided into consonants and vowels, respectively, and arranged according to the order of Hangul consonants. Condition (hereinafter referred to as 'condition 1'), a condition for inputting a complex consonant (hereinafter referred to as 'condition 2'), and a condition for inputting a complex vowel (hereinafter referred to as 'condition 3') Is placed.

First, a configuration that satisfies the input condition (condition 1) of the double consonants among the configurations for consonant arrangement will be described. In Korean consonants, there are five consonants that can be used as initial or final consonants: 'ㄲ', 'ㄸ', 'ㅃ', 'ㅆ', and 'ㅉ'. Each of these double consonants is preferably placed on the same key as the corresponding single consonants 'a', 'c', 'ㅂ', 's', 's', and for the convenience of the user. In this case, each of the different consonants may be arranged together on the same key or may be disposed separately on different keys, depending on the arrangement of the basic consonant sets. That is, for example, when 'a' and 'b' are arranged on the same key as the arrangement of the single consonants, in fact, the double consonants corresponding to the single consonants a are arranged together with <a, b, ㄲ> is a key arrangement, but if the single consonants 'ㄱ', 'b' and 'c' are placed on the same key, the double consonants 'ㄱ' and 'c' respectively correspond to the double consonants 'ㄱ' and 'c' and 'ㄸ' will be placed together, resulting in a key arrangement of <a, b, c, k, k>. However, as in the latter case, when different consonants are placed together on the same key, too many consonants are placed on one key, so that too many consecutive key inputs are required to input one Hangul consonant. There is a problem. Thus, in order to minimize the number of consonants arranged on one key, the present invention allows only three consonants to be placed on one key, and to allow up to four arrangements exceptionally. To do this, each different consonant needs to be placed on a different key.

That is, each single consonant corresponding to the double consonant 'ㄲ', 'ㄸ', 'ㅃ', 'ㅆ', 'ㅉ', 'ㄱ', 'ㄷ', 'ㅂ', 'ㅅ', 'ㅈ' It should not be placed together on the key. Such key arrangement conditions are shown in FIG. 2. In the table of Fig. 2, the basic consonant pairs which are not to be arranged on the same key for minimizing the continuous key input for the double consonant input are shown by the symbol X.

In summary, the consonant combinations satisfying the key arrangement condition (condition 1) for inputting the multiple consonants according to the sequential arrangement of the Hangul consonants are as follows.

{Consonant combination 1} {consonant combination 2}

<A, b, b> <a, b, b>

<ㄷ, ㄹ, ㄸ> <ㄷ, ㄹ, ㄸ>

<ㅁ, ㅂ, ㅃ> <ㅁ, ㅂ, ㅃ>

<ㅅ, ㅇ, ㅆ> <ㅅ, ㅇ, ㅆ>

<ㅈ, ㅋ, ㅋ>

<ㅋ, ㅌ> <ㅌ, ,, ㅎ>

<T, ㅎ>

Here, the <> symbol represents a consonant group arranged on one key.

In each of the above-described consonant combinations {consonant combination 1] and {consonant combination 2}, the consonant part may or may not be directly displayed on the keypad. That is, even if the consonant part is not necessarily displayed on the keypad, since only one consonant corresponding to the displayed consonant is disposed on each key, the user can easily know which consonant is the unconcatenated consonant. In addition, in {consonant combination 1} and {consonant combination 2}, the consonants are uniformly arranged to be the final input of each key. Alternatively, the consonants may be arranged to be the next input of the corresponding single consonants. That is, for example, the key arrangement of <a, b, b> may be arranged in the order of <a, b, b>. However, in the arrangement of the consonant combination described above, only the former method is selected in consideration of the fact that 'b' is used more frequently than 'b' among these arrangements.

Next, a configuration that satisfies the condition for conditional double consonant synthesis (condition 2) among the configurations for consonant arrangement will be described.

Hangeul's support, that is, 'Bokja' that can be input as Jongsung, means 'ㄳ', 'ㄵ', 'ㄶ', 'ㄺ', 'ㄻ', 'ㄼ', 'ㄽ', 'ㄾ', 'ㄿ', 'ㅀ' ',' ㅄ 'exists. In order to synthesize and input the above-mentioned double consonants only through continuous input of a key on which a basic consonant set is arranged without using a separate compounding function key, the individual consonants which can be synthesized by the aforementioned consonants are arranged on the same key. Can not be done. For example, when 'L' and 'ㅁ', which can be synthesized with the double consonant 'ㄻ', are placed on the same key, the composite input of the double consonant 'ㄻ' is impossible without the use of separate complicated algorithms or function keys. do. 3 shows the conditions of such key arrangement as a table. In the table of Fig. 3, the combination of consonants which should not be placed on the same key for the compound consonant synthesis input in the terminal is indicated by the symbol X.

Condition 2 for the composite input of the double consonant described above should be considered together with the condition 1 for inputting the double consonant. In this case, it can be seen that {consonant combination 1} and {consonant combination 2} satisfying the above condition 1 also satisfy condition 2 (see FIG. 3) that enables the compound input of the complex consonants. As consonant combinations that satisfy both the conditions 1 and 2, the above-described {consonant combination 1} and {consonant combination 2} will be adopted.

Next, a key arrangement condition (condition 3) required when double vowel synthesis is required for the Korean input of Korean will be described.

The vowels used as the Korean vowels include 'ㅐ', 'ㅒ', 'ㅔ', 'ㅖ', 'ㅘ', 'ㅝ', 'ㅙ', 'ㅞ', 'ㅚ', 'ㅟ', ' There's a bang. For the composite input of these vowel vowels, as in the above-described composite input of the vowel consonants, each of the single vowels that can be synthesized with the vowel vowels should be arranged separately on a separate key. For example, the short vowels 'ㅗ', 'ㅏ' and 'ㅣ' should not be placed on the same key in order to enter the character 'why' by simply inputting the keys without using a separate synthesis algorithm and function keys. In addition, the short vowels 'TT', 'ㅓ' and 'ㅣ' should not be placed on the same key in order to input the letter 'we'. These key arrangement conditions are summarized in a table as shown in FIG. In FIG. 4, a pair of vowels that can be synthesized as a vowel and not to be arranged on the same key is indicated by a symbol X. In FIG.

From the above description and the table of FIG. 4, a vowel combination capable of the following double vowel synthesis can be obtained.

{Collection combination 1}

<ㅏ, ㅑ, ㅓ, ㅕ>

<ㅗ, ㅛ, TT, ㅠ>

<ㅡ>

<ㅣ>

Here, the <> symbol indicates a vowel group arranged on one key.

In the above-mentioned {vowel combination 1}, the vowel '-' can actually be synthesized with the vowel 'ㅣ', and the synthesis of the other short vowels is not performed. Therefore, the following vowel combination is also possible in terms of double vowel synthesis.

{Collection combination 2} {collection combination 3}

<ㅏ, ㅑ, ㅓ, ㅕ, ㅡ> <ㅏ, ㅑ, ㅓ, ㅕ>

<ㅗ, ㅛ, ㅜ, ㅠ> <ㅗ, ㅛ, ㅜ, ㅠ, ㅡ>

<ㅣ> <ㅣ>

However, there is a problem that {vowel combination 2} out of these vowel combinations is out of alphabetical order of Hangul vowels. On the other hand, {vowel combination 3} has an imbalance in the number of vowels arranged per key. Too many vowels are arranged, so that a key input must be repeated several times in succession to input one vowel, so the combination of these vowels is omitted in the present invention.

On the other hand, one of the important features of the present invention in vowel arrangement is the composite input method of the double vowel 'ㅢ'. That is, as described above, since the short vowels 'ㅡ' and 'ㅣ' can be synthesized with each other, they must be separated from each other by separate keys as in {collection combination 1}. However, when this condition is strictly applied, the key arrangement is { There may be a problem that there is an imbalance in the number of vowels placed on each key, as in vowel combination 1}. Accordingly, in the present invention, only the double vowel 'ㅢ' composed of the short vowel '-' and 'ㅣ' is recognized as one of the basic vowel sets. That is, when the double vowel 'ㅢ' is recognized as one of the basic vowel sets, each short vowel 'ㅡ' and 'ㅣ' constituting it do not need to be separated from each other by separate keys, and thus, 'ㅡ' And 'ㅣ' on the same key and the double vowel 'ㅢ' can be placed together as the third input of the key on which these short vowels 'ㅡ' and 'ㅣ' are arranged. In this way, if the exception to the double vowel 'ㅢ' is recognized, the above-described {collection combination 1} is modified to the following key arrangement uniform {collection combination 4}.

{Collection combination 4}

<ㅏ, ㅑ, ㅓ, ㅕ>

<ㅗ, ㅛ, TT, ㅠ>

<ㅡ, ㅣ, ㅢ>

Here, {combination combination 4} is placed up to four vowels on one key, so that it is inconvenient to press the same key four times in order to input a specific vowel (for example, 'ㅕ' or 'ㅠ'). Since there may be a spare key button on the telephone keypad, it is more preferable to divide and arrange as follows for convenience of actual use.

{Collection combination 5}

<ㅏ, ㅑ>

<ㅓ, ㅕ>

<ㅗ, ㅛ>

<TT, ㅠ>

<ㅡ, ㅣ, ㅢ>

FIG. 5 illustrates a process of inputting a double vowel synthesis using the case where {vowel combination 5} is placed on a numeric keypad. Here, if the input process of the vowel vowel 'ㅙ' is described as an example, the keys corresponding to each vowel 'ㅗ', 'ㅏ', 'ㅣ' constituting the vowel vowel '되는' to be input are successively pressed. First, press the <ㅗ, ㅛ> key once to input the first input 'ㅗ' of this key, and then press the <ㅏ, ㅑ> key once to enter the first input '해당' of the corresponding key. It is synthesized with the previously input 'ㅗ' to form a double vowel 'ㅘ'. Then, if you press the <ㅡ, ㅣ, (ㅢ)> key once, it is synthesized with the vowel vowel 'ㅘ' that has been input so far. It will form 'ㅙ'. Here, in the input process of the final input process <ㅡ, ㅣ, (ㅢ)> key, although the key is pressed only once, it is recognized as the input of 'ㅣ' and can be synthesized as a double vowel 'ㅙ'. This is one of the important features of the double vowel synthesis algorithm of the present invention. In the normal vowel input, the vowels arranged at the corresponding positions are selected and input according to the number of times of pressing of the keypad. If a compound vowel is to be input by combining the vowels, the vowels that can be synthesized with the previous input vowel are automatically selected regardless of the number of key presses. That is, in the process of inputting the vowel vowel 'ㅙ', if the vowel 'ㅘ' is continuously input and there is continuous input of the <ㅡ, ㅣ, (ㅢ)> key, it is possible to synthesize with the previously inputted vowel '가능한'. Since the vowel becomes 'ㅣ', even if you press the <ㅡ, ㅣ, (ㅢ)> key only once, 'ㅣ' is automatically selected and synthesized as a vowel 'ㅙ'. The method of synthesizing the vowel vowel according to the present invention can also be seen in the input process of the remaining vowel vowels shown in FIG. 5. On the other hand, since the double vowel 'ㅢ' is exceptionally recognized as one of the basic vowel sets in this embodiment, the input process is performed by pressing <-, |, (ㅢ)> three times in succession, as shown in FIG. To enter.

While following the sequential arrangement according to the Hangul alphabet order described above, it is possible to simultaneously input compound inputs of double consonants, compound consonants, and compound vowels through continuous pressing of the keypad on which the basic consonant sets are arranged without a separate synthesis function key. 6 shows the key arrangement method. FIG. 6A shows an example of an arrangement method using {consonant combination 1} that satisfies the conditions 1 and 2 of the consonant arrangement described above and {vowel combination 5} that satisfies the condition 3 of the vowel arrangement, FIG. 6. (b) is an example arranged using {consonant combination 2} and {vowel combination 5} satisfying the above-described consonant and vowel arrangement conditions, and FIG. 6 (c) shows {consonant combination 1} and {vowels described above. The example arrange | positioned using the combination 4} is shown. As can be seen from the figure, the arrangement method of Fig. 6 (a) uses all 12 keys on a regular telephone, but according to the arrangement method of Figs. 6 (b) and 6 (c), the <#> key or < One or two of the *> and <#> keys can be used for other purposes. In each arrangement method shown, the double consonants (ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) and double vowel 'ㅢ' may or may not be displayed on the keypad.

Hereinafter, the Hangul input algorithm using the Hangul input telephone terminal keypad according to the present invention will be described with reference to FIG.

The Hangul input algorithm according to the present invention has a total of six states (S0, S1, S2, S3, S4, S5), as shown in FIG. Internal processing in the state.

State S0 is an initial state in which no key is entered, and if the next input is a consonant, the state transitions to state S1, and the next input transitions to the state S2. State S1 is a state in which initial input processing is performed, and when consonants are continuously inputted, state S1 is maintained, and when vowels are inputted, the state advances to state S2. On the other hand, in state S1, it is determined whether the input consonant can be synthesized with the previously entered final consonant, and if it is possible to synthesize, delete the current input first and transition to state S3 to synthesize the last character of the preceding letter. The process is performed. State S2 is a state in which the neutral input process is performed, and is synthesized with the initial consonant input in state S1 and maintains the state input until neutral. In the case where the neutral vowel is continuously input in the state S2, the state S2 is maintained, and at this time, a double vowel synthesis process or a process of updating the existing neutrality with the new neutral is performed according to whether or not the synthesis with the previous neutral vowel is possible. . On the other hand, if there is an input of consonants after the state S2, the process moves to the state S3 to perform the final input process. In state S3, the input final consonant and the character that has been completed before the neutral input are synthesized to complete the input character. If the new consonant is continuously input in the state S3 after completion of the character, It is judged whether the newly input consonants can be synthesized by a double consonant, and when the synthesis is possible, the synthesis process is repeated in the state S3, and if the synthesis is impossible, the process moves to the state S4 and the next newly entered consonants It is a consonant of letters. In state S4, the cursor is moved to the position of the next character without waiting for a key input, and immediately transitions to state S1 to process the newly input consonant as the initial consonant of the next character. On the other hand, if the vowel is continuously input after the finalization process in the state S3, the flow advances to the state S5 to proceed to the neutral processing of the next character. In state S5, the cursor is moved to the position of the next character without waiting for a key input, and immediately moves to state S2 to bring the final character of the initial character to the first character of the next character, and synthesize it with the newly input vowel to perform neutral processing. If the last character of the preceding character is a consonant consonant, only the last consonant of the consonant consonant is brought to the first consonant of the next character, and the newly input neutral vowel and synthesis processing are performed.

Through the above Hangul input algorithm, the Hangul characters are completed through continuous key input, instead of using the completion key (for example, arrow keys) for each rewriting of Korean characters. The input method is possible.

As described above, according to the keypad arrangement of the present invention, since the arrangement of the keypad is sequentially arranged in the order of the Hangul alphabet, it is easy to find a consonant key corresponding to the Hangul character that the user wants to input. And the layout of the basic consonant set satisfies an arrangement condition that enables a complex consonant and a complex consonant input without a key collision even by simple continuous key input. Since the composite input of the double vowels is possible without using a separate function key, the user's convenience in Korean input is improved and the input time is shortened.

Claims (2)

In the keypad for a phone terminal for entering Korean characters, A basic consonant set consisting of 17 consonants (ㄱ, ,, ,, ...., ,, ,, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) and 10 neutral short vowels (ㅏ, ㅑ, ㅓ, ㅕ) Separate the basic vowel set consisting of, ..., ㅡ, ㅣ) into consonants and vowels, and arrange them in the order of Hangul The double consonants (ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) are each placed on the same key as the corresponding single consonants (a, c, ㅂ, ㅅ, ㅈ), and the different double consonants are not placed on more than one key, Consonant consonants that can be synthesized into a consonant of the basic consonant set are arranged separately from each other key, Among the basic vowel sets, vowels that can be synthesized in a vowel vowel are arranged separately on different keys. Keypad for telephone terminal, characterized in that consisting of. In the keypad for a phone terminal for entering Korean characters, A basic consonant set consisting of 17 consonants (ㄱ, ,, ,, ...., ,, ,, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) and 10 neutral short vowels (ㅏ, ㅑ, ㅓ, ㅕ) , ..., ㅡ, ㅣ) and the basic vowel set consisting of the vowel 'ㅢ' are separated into consonants and vowels, respectively, and placed in the order of Hangul The double consonants (ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) are each placed on the same key as the corresponding single consonants (a, c, ㅂ, ㅅ, ㅈ), and the different double consonants are not placed on more than one key, Consonant consonants that can be synthesized into a consonant of the basic consonant set are arranged separately from each other key, Among the basic vowel sets, vowels that can be synthesized by vowels excluding vowels '-' and 'ㅣ' are separately arranged on different keys, and the vowel 'ㅢ' is a key on which the vowels '-' and 'ㅣ' are arranged. Place collections placed together on the same key as the collections 'ㅡ' and 'ㅣ' so that they can be executed by the third input of Keypad for telephone terminal, characterized in that consisting of.