CN1694049A

CN1694049A - Chinese character input system based on five-key

Info

Publication number: CN1694049A
Application number: CN 200510043565
Authority: CN
Inventors: 韩亚林
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-20
Filing date: 2005-05-20
Publication date: 2005-11-09
Anticipated expiration: 2025-05-20
Also published as: CN1327316C

Abstract

This invention discloses a Chinese character input system based on five keys in order to improve the high-efficient and adaptability of Chinese character input in the keypad of information equipment on the palm. Making a five keys group with a group of relevant buttons distributing severeness in the keyboard and relatively locate in up, down, left and right with the well feeling of five keys group, operators should get rid of the vision to the button while making Chinese character input. In the list of candidate Chinese characters of Chinese character input operating interface, the order of each Chinese character arrangement is scientific and in reason in order to accelerate Chinese character input. And in every page of the list, Chinese characters relatively locate in up, down, left and right. They are corresponded to four buttons of up, down, left and right in five keys group, in order to help Chinese characters select. Use five kinds of basic strokes of a Chinese character or four kinds among them to encode. Through the five keys group, you can make operations of strokes searching, Chinese character choosing and tabulation turning over page on the list of candidate Chinese characters, thus realize the whole course of Chinese character input in these five buttons.

Description

A kind of Chinese character input system based on five keys

[technical field]

The present invention relates to the system that a kind of keypad by electronic message unit carries out the Chinese character input, relate in particular to a kind of system that carries out the Chinese character input by five buttons in the keypad of keypad palm information equipment, in the mode of stroke coding.It can be applicable to the Chinese character input system of portable electronic information equipment such as telepilot, set-top box, game machine, cell-phone, palm PC, electronic dictionary, digital camera, personal digital assistant, electronic notebook.

[background technology]

When people carry out the Chinese character input on keypad electronic message units such as cell-phone at present, the input method of Chinese character that the most generally uses is spelling input method and stroke input method, and stroke input method wherein more common T9 Chinese character coding input method, eZi Chinese character coding input method, iTAP Chinese character coding input method etc. are arranged.

The common feature of the Chinese character input method of these present known stroke codings is:

1. on the target call of input method, they are all to import fast, to be easy to learn and use as pursuing one's goal; And the stroke coding that requires Chinese character meets relevant national regulation standard.

2. utilize at the button of input method, they all utilize all or part of numerical key among the 0-9 on the standard numeric keyboard to carry out the input of encoding of Chinese stroke, and utilize other numerical key that is not used to the stroke coding input or non-numeric key to carry out the selected of Chinese character and search.

3. realize at the software of input method that they all use top frequency character first, word supposition association etc. can improve the algorithm design strategy of the average input speed of Chinese character.

4. in the encode Chinese characters for computer of input method, they are all with the coding clue of stroke and order of strokes as Chinese character, and are a spot of several with the Chinese-character stroke type merger of a multitude of names.For example, in the T9 Chinese character coding input method, the basic stroke of Chinese character is divided into five classes; In the eZi Chinese character coding input method, the basic stroke of Chinese character is divided into eight classes; In the iTAP Chinese character coding input method, the basic stroke of Chinese character is divided into nine classes.

5. on the mode of operation of input method, they all realize the Chinese character input in conjunction with the candidate Chinese character tabulation, and relate in Chinese character input process that stroke retrieval, Chinese character are selected, the button operation of tabulation page turning.When stroke was retrieved, always the key position of each stroke type according to them distributed, and in conjunction with the stroke and order of strokes that will import Chinese character, imports its stroke coding successively; When Chinese character is selected, use the method for " move to current cursor on the Chinese character that will import earlier, selected then confirm " at large, or the method for " each Chinese character in the current candidate Chinese character tabulation is carried out the digital keys coding and undertaken single strong directly selected by each corresponding digital button "; When the tabulation page turning, strong by pressing of a certain definition often, or cursor moving continuously on each candidate Chinese character realized page turning.These input methods, carry out that stroke recited above retrieval, Chinese character are selected, during these three kinds operations of tabulation page turning, what utilize usually is different key on the keyboard.

6. on the button of stroke code is arranged, they all are that each stroke coding unit that is used for encode Chinese characters for computer sequentially is arranged on the numerical key on the standard numeric keyboard.

7. on the arrangement mode of candidate, they all are with the mode of each Chinese character in the candidate Chinese character tabulation with single file or multirow, sequentially are arranged on the display screen.

The mode of operation that several traditional Chinese character recited above is imported, its maximum shortcoming is, in Chinese character input process, the sum of involved button is too many, be difficult for realizing " blind " operation (not seeing keypad), the continuous switching of sight line between keypad and display screen tends to the reduction that causes pressing button and import the efficient of Chinese character.

[summary of the invention]

The present invention has overcome deficiency of the prior art, and a kind of devices and methods therefor that carries out the Chinese character input by five buttons is provided.Its objective is, the whole process of character input operation is implemented in concentrates on five buttons that distribute and be convenient to operate, break away from this that the vision to button relies in Chinese character input process, to improve the button operation speed in the Chinese character input process; Simultaneously, rational Hanzi coding scheme of design science and button operation rule, the code efficiency of increase button is to reduce the touch potential in the Chinese character input process.Generally speaking, the objective of the invention is to improve the convenience of character input operation in the keypad hand-held device.

Be accompanied by the development trend of portable electric appts miniaturization, its keyboard becomes more and smaller and more exquisite, and the interval of button is compacter, and the surface area of button is littler, and prints littler numeral and alphabetical at its top.Regrettably, the user of these electronic equipments meets difficulty in identification or when pushing the button of those little and compact arrangements sometimes, causes the user once to press a plurality of keys easily or presses the wrong button.For cell-phone and other portable electric appts, exist these defectives.Therefore the total number of button that need the input Chinese character is involved reduces.

In order to address the above problem, the present invention is achieved by the following technical solutions:

In the present invention, make every effort to and to be distributed on the button of five easy operatings in employed all key sets in the whole Chinese character input process.These five buttons that concentrate to distribute are collectively referred to as five key groups in the present invention, and it is made of five buttons that are distributed in upper and lower, left and right, middle position relatively, finish by them that stroke retrieval, Chinese character are selected, the whole Chinese character input process of tabulation page turning.For improving the operability of five key groups, its Machine Design required be, compact conformation, feel are good, like this operator's tangible (thumb) tactile feedback that can provide by means of five key groups, information indicating on the combining screen can carry out character input operation easily and intuitively simultaneously.

In the present invention, the distribution shape of candidate Chinese character tabulation is identical with the distribution shape of five key groups, promptly in each page of candidate Chinese character tabulation, be used to identify the prompting symbol of Chinese character input current state except being in middle position, also comprise four candidate Chinese characters, and they lay respectively at the position, upper and lower, left and right of prompting symbol.This makes and exists a kind of direct linking relationship between four buttons of upper and lower, left and right in four candidate Chinese characters and the five key groups of upper and lower, left and right in the candidate Chinese character tabulation that this linking relationship is by the corresponding realization in position intuitively.The foundation of this linking relationship will make each Chinese character in the candidate Chinese character tabulation all carry a kind of like this information potentially---the selected position of the needed button of this Chinese character in five key groups.When operation being selected in a certain Chinese character in the candidate Chinese character tabulation by five key groups, in conjunction with this information indicating, utilize the difference of four key positions in upper and lower, left and right, with the form of single strong or multiple key (key combination), the Chinese character of four positions, upper and lower, left and right in the tabulation of selected respectively input candidate Chinese character.

Create a kind of Chinese character input system, its essence is, the input code of Chinese character (outer sign indicating number) is converted to the internal code of Chinese character.Its basic demand is that it is convenient that code efficiency height, code length weak point, coding rule are simply, coding is imported.In the present invention, for selecting rational encode Chinese characters for computer unit, the stroke of research Chinese character constitutes characteristics, strives reducing the number of the stroke type that participates in encode Chinese characters for computer, and reduces the identification difficulty of stroke type in the Chinese character input process.By statistics, select five kinds of basic stroke types of horizontal, vertical, left, points, discount at last, perhaps four kinds of coding units wherein as encode Chinese characters for computer to the usage frequency of various basic stroke types.The coding rule of formulation science, at the Chinese-character stroke that participates in coding with import between their each button and set up confidential relation, and with the stroke and order of strokes of the Chinese-character writing natural clue as encode Chinese characters for computer.

Compared with prior art, the invention has the beneficial effects as follows conspicuously, it mainly shows the high efficiency and the dirigibility of character input operation.

[description of drawings]

Fig. 1: the button distribution shape of five key groups;

Fig. 2: the distribution shape of candidate Chinese character tabulation;

Fig. 3: adopt the distribution shape of the candidate Chinese character tabulation of nested structure to give an example;

Fig. 4: five kinds of stroke coding unit distribution plans on five key group buttons;

Fig. 5: four kinds of stroke coding unit distribution plans on five key group buttons;

Fig. 6: Chinese character input process for example;

Fig. 7: the data layout of codebook file;

Fig. 8: software realization flow figure;

Fig. 9-Figure 12: the data variation process in software running process for example.

[embodiment]

Chinese character input system based on five keys involved in the present invention comprises the hardware system and the software systems that realize character input function in the present small palm apparatus by button.

Chinese character input involved in the present invention, refer to the input of the Chinese character in the national standard Chinese characters in current use storehouse, and in present specification, Chinese character base is an example with " contemporary Chinese common word table " (including 7000 Chinese characters altogether) that State Language Work Committee and The Press and Publications Administration of the P.R.C unite issue.

In the present invention, what Chinese character was adopted is the mode of stroke coding, promptly according to the natural stroke sequential write of Chinese character, according to coding rule its each stroke that participates in coding is represented with the form of the unit of encoding.Therefore, the stroke coding of each Chinese character constitutes relevant with stroke order with the stroke of Chinese character itself.In present specification, in order to describe the convenience of encoding of Chinese stroke, five numerals of use " 12345 " are represented five kinds of basic strokes of " apostrophe folding anyhow " respectively.At Hanzi inputing code of the present invention in this, the stroke coding of each Chinese character is united issue with State Language Work Committee and The Press and Publications Administration of the P.R.C " Modern Chinese general words normative stroke order " (including 7000 Chinese characters altogether) is as with reference to standard.

In present specification, will be example with the cell-phone, set forth main thought of the present invention and various specific embodiments.

Below will be from five aspects, and in conjunction with the accompanying drawings, by some embodiments, technical scheme of the present invention is described in further detail.

1 design proposal about five key groups

The existence of five key groups is prerequisite bases that the present invention is rely and realized.In the present invention, five key groups are exactly employed whole buttons in the whole Chinese character input process.

1.1 mechanical features about five key groups

Be present in each button in the five key groups on the keypad, should satisfy the mechanical features that describes below.

1.1.1 the quantity of button constitutes

Be used to realize five key groups of whole Chinese character input process, as its name suggests, it only is made of five buttons.

1.1.2 the relative position of button

Five buttons in the five key groups go to upper and lower, left and right, in the cruciform relative position distribution, its distribution shape is as shown in Figure 1.In the elaboration hereinafter, five buttons are called key, following key, left button, right button, center key, and wherein four of the position, upper and lower, left and right buttons are referred to as the four-way key again.

Need to prove, the cruciform button of five key groups above-mentioned distributes, its title or implication come from the button formation of five key groups and the relative position between each button thereof, external appearance characteristic at the button of the given specific embodiment of accompanying drawing 1, only reflection is the button formation and the relative position distribution between them of five key groups, but it does not limit the concrete shape of each button.Therefore, after art designing's design of the shape of these buttons being carried out variety of way, still can belong within the concept field of five key groups of the present invention.

1.1.3 the distribute spacing of button

For improving the compactedness and the suitability of button distributed architecture in the five key groups, upper and lower, left and right, in five buttons no matter be independent distribution separately, still physically by integrated, the center of four buttons of upper and lower, left and right all should be adapted to the comfortable operation of finger (being generally thumb) with respect to the distance of the center of center key.

1.1.4 the tactile feedback of button

Should make five key groups that the button feel can be provided by Machine Design.Several typical design proposals are:

One of, among whole five key groups, center key to the keyboard bottom notch, forms a kind of " basin " shape structure with respect to the four-way key;

Two, among whole five key groups, annular region between center key and the four-way key is sunk, and forms a kind of " gully " shape structure;

Three, among whole five key groups, each button forms a kind of " hills " shape structure with respect to the button space between them come-up.

In a word, the above-mentioned mechanical features of five key groups shows that the quantity of five buttons is to be convenient to be familiar with for people; The residing upper and lower, left and right of each button, in relative position also be to be convenient to people grasp; Compact button distributed architecture has shortened displacement and the time of finger on keypad in Chinese character input process; The button moulding meeting of having strengthened the feel design provides good tactile feedback for the user.All these are the user to the handled easily of five key groups, especially for being that " blind " operation provides useful help, thereby provide possible condition for carrying out the Chinese character input fast, consistently.

In Chinese character input process, the benefit that " blind " change mode of operation of button is brought is, the vision of having broken away from keyboard because of the user relies on, and has also avoided the continuous switching of sight line between keyboard and screen, thereby sight line can be concentrated entirely on the candidate Chinese character tabulation on the screen.Therefore, for the Chinese character that its stroke coding does not also have input to finish and just occurred in the candidate Chinese character tabulation, all can not cause this unessential unnecessary stroke code to continue the situation of input, but in the very first time, directly carry out the selected operation of Chinese character.

1.2 existence form about five key groups

Five key groups of crossing distribution belong to an ingredient on the electronic message unit keypad.Fortunately, in current electronic message unit especially cell-phone, exist five key combinations that its distribution shape meets " up and down " feature on its keypad.Its distributing position on whole keypad can show as following two kinds of forms.

1.2.1 five key groups are distributed on " 2-8-4-6-5 " or " 5-0-7-9-8 " numerical key in the standard numeric keyboard.

On standard numeric keyboard, 10 numerical keys of 0-9 and 2 symbolic keys of " * " and " # ", always with the array distribution of 4 (OK) * 3 (row), and five numerical keys " 2-8-4-6-5 " in them or " 5-0-7-9-8 " have all constituted the relative distribution shape of " on-down-left side-right side-in ", meet the distribution shape feature of five key groups involved in the present invention.

1.2.2 five key groups are distributed on five navigation key in the keypad.

Can directly utilize five common in the keypad of current electronic message unit navigation key (5-way navigation key), carry out Chinese character input involved in the present invention.Five navigation key are the one group of related key that is distributed as upper and lower, left and right, middle position relatively, it is usually located at the top of keypad in cell-phone, be used to the feature operation that menu navigation and cursor move at large, four buttons of its periphery are called as the four-way navigation key sometimes.

When five key groups are positioned on five navigation key, its great advantage is, the Machine Design of five navigation key in the electronic equipment keypad itself normally compact conformation, feel is good, and it can be for the present invention directly uses, and gives the specific function of its Chinese character input.Especially when Chinese character input system of the present invention is applied to cell-phone, when utilizing five navigation key on the keypad top that is positioned at it and utilizing thumb to carry out character input operation, controlled phone easilier by the user; Simultaneously, because this Chinese character input system does not take the numerical key resource on the keypad in this case, can be implemented under the situation of not switching this input method of Chinese character state, directly utilize numerical key to carry out numeral and import or utilize numerical key not use the input method of Chinese character of five navigation key to carry out the Chinese character input with other.On the other hand, the unfavorable factor when five key groups are positioned on five navigation key is, five navigation key can produce between the character input function of newly giving and original other function by the conflict on the key definition, and this conflict need be managed to solve.

Each button in five navigation key in Machine Design except independent distribution separately, also can they are integrated, be about to whole five navigation key mechanically one turn to one five to the lever-type button, like this, it also can be pressed downwards except the four-way of upper and lower, left and right is pressed; Also the part of the upper and lower, left and right key in five navigation key mechanically can be designed as a whole, and with the center key independent distribution.All or part of with in " up and down " in five navigation key five buttons, the quilt form of being integrated in one in Machine Design, it equally also is the mechanical features that can meet previously described five key groups, therefore also be to carry out the Chinese character input as five key groups involved in the present invention, and incorporate button operation get up more convenient flexible.

If the button distribution shape of five key groups is done accommodation slightly, the relative position of four buttons of original upper and lower, left and right is remained unchanged, and original center key is moved to the outer fix of these four buttons, and the function of five buttons is not done any variation, though do the realization that does not influence Chinese character input method of the present invention like this, the convenience of button operation will be had a greatly reduced quality.

1.3 key mode about five key groups

In various embodiment of the present invention, the involved mode of operation to five key group buttons always has three kinds, and they are respectively: " pressing ", " long by ", " two by " are explained as follows their unification:

1. " pressing " certain key and be meant, press certain button and promptly unclamp afterwards, is the most general key mode;

2. " long by " certain key is meant, the state of pressing after certain button and keeping this button to be pressed in the defined sufficiently long time period at a software;

3. " two by " certain key is meant, presses certain button twice continuously, and within the time period of the time interval less than a defined enough weak point of software between twice button.It is very similar to computer mouse " double-click " operation.

2 design proposals about the candidate Chinese character tabulation

The candidate Chinese character tabulation is meant that according to the current stroke code string of having imported, by the tabulation of each Chinese character of input possibly of system intelligence prediction, it can show by multipage (screen).

Each Chinese character that is stored in the tabulation of current candidate Chinese character all satisfies such coding retrieval character: the whole stroke coding of Chinese character or the prefix part of its whole stroke coding (whole coding beginning one or more continuous programming code unit), and identical with the current stroke coding string of having imported; When not importing any stroke code, the Chinese character in the current candidate Chinese character tabulation should be the Chinese character base complete or collected works.

The candidate Chinese character tabulation is the core of Chinese character input system of the present invention, also is simultaneously the operation interface in the Chinese character input process.In the whole Chinese character input process after entering this Chinese character input system, the candidate Chinese character tabulation exists all the time.

2.1 the meaning that exists about the candidate Chinese character tabulation

In the present invention, in case enter the Chinese character input state, candidate Chinese character tabulation occurs at once and exists all the time, and it can be for the Chinese character input provides various facilities, enumerate several as follows:

1. the existence of candidate Chinese character tabulation, in the time of will importing for Chinese character without the selected possibility that provides of stroke retrieval directly carrying out Chinese character.After entering this input system but do not import in the stroke code of Chinese character, perhaps after Chinese character of input but do not import in the stroke code of next Chinese character, the existence of candidate Chinese character tabulation, can the handled easily person under the situation of not importing any stroke code, a Chinese character in directly selected its homepage of input is done so on the whole and can be reduced touch potential.

2. the existence of candidate Chinese character tabulation helps to handle the input problem of the identical Chinese character of repeat code Chinese character and stroke coding prefix.When carrying out the Chinese character input according to the stroke coding rule of Chinese character, if two or more Chinese characters are corresponding to identical stroke coding or corresponding to identical stroke coding prefix, for they are distinguished, or each Chinese character of under the condition of not importing any stroke code candidate Chinese character being tabulated in the same page is distinguished, form by the candidate Chinese character tabulation produces secondary identification code (for example can be digital number etc.) automatically by system.In a broad aspect, this secondary identification code also is an ingredient of encode Chinese characters for computer.Therefore, have the candidate Chinese character tabulation of the selected operating characteristic of Chinese character, come down to have carried out the coding second time of the change method of Chinese character coding for Chinese character wherein.Among the present invention tabulate Chinese character in the same page of candidate Chinese character is carried out for the second time that the foundation of coding is, the position in their each comfortable original lists.

3. the existence of candidate Chinese character tabulation is with the input of buffering stroke and the Chinese character index relation between the two.When Chinese character was imported, candidate Chinese character was tabulated and play a kind of " Buffer Pool " between the screening of the input of stroke code string and candidate Chinese character.Showing respectively in can the candidate Chinese character tabulation except corresponding to a plurality of repeat code Chinese characters of identical stroke coding, when the Chinese character that is constituted when the stroke coding string of having imported does not exist, with it serves as that the Chinese character of coding prefix can come across candidate Chinese character tabulation in advance, can stop the stroke retrieval this moment and directly select Chinese character in the input candidate Chinese character tabulation current page, also can save touch potential sometimes.For example, in Chinese character base, be that the Chinese character of stroke coding prefix has 12 with " deceiving " word, by the lexicographic order of its stroke coding, be arranged in order and be " the silent Yi County, Guizhou Province of the crafty act wantonly of tusche tattoo dim dismiss black black ".The complete stroke coding of " deceiving " word is: " 254312,114444 ".During certain Chinese character in will importing " deceiving " word side, retrieve by stroke code, at input stroke code " 254312 " afterwards, all stroke codings with " deceiving " word these 12 Chinese characters have been discerned uniquely for its coding prefix, they are present among the tabulation of current candidate Chinese character, can directly select this moment input be arranged in homepage, serve as the Chinese character of prefix of encoding with " deceiving " word.On the other hand, if continue input stroke coding " 114444 ", candidate Chinese character tabulate also without any variation, from then on says on the meaning, and 12 " deceive " words have appeared among current candidate Chinese character tabulates in advance for the Chinese character of the prefix of encoding.

4. in the present invention, the existence of candidate Chinese character tabulation also helps to solve stroke coding length and is the input problem of zero Chinese character.When the Chinese character coding rule of being adopted has determined that the stroke coding of Chinese character does not exist, these Chinese characters can be placed among the homepage of current candidate Chinese character tabulation, so that to its directly selected input.

2.2 appearance attribute about the candidate Chinese character tabulation

Candidate Chinese character tabulation often is made of a plurality of candidate Chinese characters, thus its usually multipage is preserved, page turning shows.In every page of candidate Chinese character tabulation, show four Chinese characters altogether, they go to upper and lower, left and right crossing distribution, as shown in Figure 2.

On the four-way key and the corresponding relation between the candidate Chinese character in the screen in five key groups, the direct mapping between the two is set up in the present invention's attempt by this method---and the relative position of each candidate Chinese character in its tabulation promptly represented the relative position of four-way key in five key groups of selecting this Chinese character.Such location map relation will make very directly perceived of the selected operation of Chinese character.In Chinese character input process, can be by the four-way key of the upper and lower, left and right in the five key groups, in the current candidate Chinese character tabulation of selected respectively input with the corresponding candidate Chinese character in their positions.Like this, be the shape-designing of candidate Chinese character tabulation by operation interface to Chinese character input system, each candidate Chinese character is convenient to the selected secondary coding of importing especially, because it provides direct key position information towards button operation.

In a word, the above-mentioned appearance attribute of candidate Chinese character tabulation shows that the capacity of four Chinese characters of every page of demonstration can be accepted by people's field range easily in the candidate Chinese character tabulation; Simultaneously, four candidate Chinese characters in the candidate Chinese character tabulation are criss-cross distribution shape, can with these four candidate Chinese characters respectively with five key groups in four buttons of upper and lower, left and right set up a kind of relation of location map intuitively, convenient character is selected.

Nested structure can also appear in the candidate Chinese character tabulation as the character input operation interface, an example so as shown in Figure 3, in each page of candidate Chinese character tabulation, enumerate 16 Chinese characters altogether, they are divided into 4 subregions of upper and lower, left and right, and 4 Chinese characters in each subregion have the branch of the position of upper and lower, left and right again.When Chinese character is selected, at first,, choose the subregion at its place by corresponding four-way key according to the position of the subregion that will select Chinese character in the candidate Chinese character tabulation, this subregion shows especially with means such as wire frame, inverse, the prospect that has changed or background colors afterwards; According to selecting the particular location of Chinese character in subregion, press corresponding four-way key then, this Chinese character is promptly chosen.With the candidate Chinese character original list shown in the accompanying drawing 3 is example, in the time will selecting wherein " people " word of input, at first chooses following subregion by key down, and then by selected this word of key down.

In the operation interface of nested structure, the more touch potential of action need selected in Chinese character; Simultaneously, this nested structure is because of the Chinese character quantity in having strengthened every page, especially when with the Chinese total number that will import the Chinese character repeated code more than 4 the time, avoid or reduced the tabulation page turn over operation, also improved visual inspection speed to Chinese character in the tabulation.

No matter be single layer structure or nested structure, at the middle position of candidate Chinese character original list, all should be with the prompting symbol of various imagerys, the current key-press status in the sign Chinese character input process.

2.3 operational attribute about the candidate Chinese character tabulation

Various concrete button operation in whole Chinese character input process all is to be center object with the candidate Chinese character tabulation, and its elementary object all is that the Chinese character that will import is called within the text input editing district from the candidate Chinese character tabulation.Button operation for the candidate Chinese character tabulation has three types: stroke retrieval, selected, the tabulation page turning of Chinese character are described below respectively them.

2.3.1 stroke retrieval

This button operation refers to, and according to the order of strokes observed in calligraphy that will import Chinese character, imports its stroke coding unit successively, and with this as key condition, the Chinese character that retrieval will be imported in the tabulation of current candidate Chinese character.

In Chinese character input process,,, also carrying out constantly retrieving and eliminating according to the stroke code of importing to all Chinese characters in the existing candidate Chinese character tabulation along with the continuous input of Chinese-character stroke sign indicating number.Each Chinese character that will meet the retrieval requirement continues to remain in the candidate Chinese character tabulation, will disappearance from tabulation and meet the Chinese character of retrieving requirement.Continue to remain in being still of tabulation with the current stroke coding string of having imported all Chinese characters for the prefix of its stroke coding or stroke coding, therefore stroke code of every input, the candidate Chinese character tabulation is also upgraded immediately.If participating in the code element number of encode Chinese characters for computer is 5, so in the ideal case, the Chinese total number in the candidate Chinese character tabulation also will be with (1/5) ^NThe rate of decay dwindle (N is the length of stroke coding of input).

2.3.2 Chinese character is selected

This button operation refers to, and to appearing at the Chinese character that will import in the candidate Chinese character tabulation current page, utilizes the visual location corresponding relation between candidate Chinese character and the four-way key, by corresponding key operation it is called in the current cursor part of input text area.

When the Chinese character that will import comes across the current page of candidate Chinese character tabulation, need this button operation.And in the present invention, Chinese character is selected is all requisite operation in arbitrary Chinese character input process.

2.3.3 tabulation page turning

This button operation refers to, and is more when candidate Chinese character quantity, when needing multipage to show respectively, can carry out page turning to current candidate Chinese character tabulation by button, searches the Chinese character that will import in batches.

The occasion that the tabulation page turn over operation is used normally, when the stroke search operaqtion, be difficult to grasp to importing the difficult or stroke order of some stroke types identification in the Chinese character, and the continuation of having interrupted stroke code is imported, too many because of the very few candidate Chinese character that causes of stroke code of input, and it is when failing to appear at the current homepage of candidate Chinese character tabulation; And when the stroke search operaqtion, when all stroke codes input that will import in the Chinese character finishes, but more because of the repeated code word, and it is when failing to appear at the current homepage of candidate Chinese character tabulation.

Three kinds of button operation modes described above are complementary, and they can intersect and carry out in Chinese character input process.And under arbitrary state of candidate Chinese character tabulation, all can carry out in these three kinds of button operation types any one.What need explanation a bit is, in the process of Chinese character input, comes across the current page of candidate Chinese character tabulation as early as possible for making the Chinese character that will import, can be by the button operation mode of stroke retrieval, and the also button operation mode that can search by the tabulation page turning.For improving Chinese character input efficiency, this input system all actively recommends to import as much as possible its stroke code, makes in its homepage that appears at the candidate Chinese character tabulation as early as possible, rather than finds it by the method for page turning.This be because, stroke code input is to belong to a kind of index search mode, and page turning belongs to a kind of block research mode, the former is than the latter's efficiency of algorithm height usually.So, even the Chinese character of importing is the verbal association word of a last input Chinese character, but when it is not arranged within the homepage of candidate Chinese character tabulation because the verbal association word is more, for improving input efficiency, also should try one's best and not use or at first do not use the mode of page turning to search it, and should at first use the mode of stroke retrieval.

Before retrieval in arbitrary Chinese character input process, the button operation of searching, the candidate Chinese character residing state of tabulating is referred to as the original state of candidate Chinese character tabulation in the present invention.Specifically it is exactly, after entering this Chinese character input system and do not carry out the state of any button operation or after just importing a Chinese character and state or the stroke code during in stroke search operaqtion the imported state that through system be judged as illegally after will automatically return of the various button operations that do not carry out being carried out before the state of any button operation or the selected input at a Chinese character after being removed by CLR (removing) key.Under original state, the Chinese character in the candidate Chinese character tabulation constitutes whole Chinese character base, and the homepage of screen display candidate Chinese character tabulation.

2.4 ordering attribute about the candidate Chinese character tabulation

In the design that each Chinese character puts in order in the candidate Chinese character tabulation, should follow following principle:

1. the Chinese character of high frequency use is positioned at before the Chinese character of low frequency use.As everyone knows, the whole frequency of utilization of each Chinese character and inequality in the Chinese character base, they present the characteristics of " a small amount of Chinese character is used by high frequency ".The unbalancedness of Chinese character appearance frequency causes the effectiveness of Chinese character to present the rule of being successively decreased successively to low-frequency word by the high frequency word.The Chinese character that frequency of utilization is high more, coverage rate are wide more, and effectiveness is good more.For this reason, the applying frequency statistical mechanism improves the average velocity of Chinese character input.Its method is according to the difference of each hanzi frequency count, to be arranged in order them from high to low, and no matter when all to keep this alignment characteristics.Because the Chinese character that high frequency uses is positioned at the front portion of candidate Chinese character tabulation all the time, they can come across the homepage of candidate Chinese character tabulation as soon as possible with convenient input.Showing on the operation interface of display screen, is exactly the Chinese character alignment characteristics of " priority of high frequency ".

2. the Chinese character of verbal association is positioned at before the Chinese character of non-verbal association.In the sentence of Chinese was expressed, the composition that word occurs was more, introduces verbal association mechanism for this reason, will can constitute next Chinese character of word with the current Chinese character of having imported, listed in the front portion of candidate Chinese character tabulation, can accelerate the input process of Chinese character undoubtedly.In order to improve effect, should in the code book of Chinese character input system of the present invention, strengthen the number of the verbal association word of each Chinese character simultaneously.After the words application association mechanism, can improve Chinese character input efficiency significantly.Because, when the Chinese character that will import was the verbal association word of a last input Chinese character, by the mode of stroke retrieval, the quantity of verbal association word will be with exponential velocity attenuation, only need a spot of touch potential often, the Chinese character that import can come across among the homepage of candidate Chinese character tabulation.

3. the Chinese character of coupling is positioned at before the Chinese character of prefix matching fully.In each candidate Chinese character, the Chinese character that mates fully should be placed the front of the Chinese character of prefix matching.This is because after stroke coding string of input, the listed Chinese character of candidate Chinese character tabulation has and mates word fully, and the prefix matching word is also arranged.The Chinese character of supposing to import, because of its stroke code input finishes, just has only the method by page turning just can find it, and needs a large amount of tabulation page turn over operation sometimes when it is put behind for mating word fully; When it was placed on the front, the capacity that is no more than one page at the repeated code word was under the situation of four Chinese characters, does not just have page turn over operation.Suppose that the Chinese character that will import is the prefix matching word, fail to be shown in homepage, still can retrieve it by the method that continues input stroke coding even be positioned at the rear portion of candidate Chinese character tabulation, rather than the mode by page turning.Importantly, the common mode efficient height searched than page turning of the mode of searching retrieved of stroke.

In addition, the stroke number that constitutes Chinese character is closely-related with the frequency of utilization of Chinese character, and hanzi frequency count is high more, and the stroke number that constitutes Chinese character is just few more; On the contrary, hanzi frequency count is low more, and the stroke number that constitutes Chinese character is just many more.On the whole, the frequency of utilization of Chinese character and the stroke number of Chinese character are inversely proportional to, and present the rule that Chinese-character stroke becomes simple.From then on say on the meaning that the Chinese character of coupling fully that the stroke sum is less is placed on before the Chinese character of the more prefix matching of stroke sum, being positioned at low-frequency word with above-mentioned high frequency word is consistent before.

According to the thought of top several principles,,, be listed below successively by its putting in order in the candidate Chinese character tabulation with various types of Chinese characters:

1. in whole Chinese character base, belong to the verbal association word of an input Chinese character and all (repeated code) Chinese characters that mate fully with the current stroke code string of having imported, the i.e. verbal association word of coupling fully, and they are arranged in order according to the height of frequency of utilization separately;

2. in whole Chinese character base, do not belong to the verbal association word of an input Chinese character and all (repeated code) Chinese characters that mate fully with the current stroke code string of having imported, the i.e. non-verbal association word of coupling fully, and they are arranged in order according to the height of frequency of utilization separately;

3. in whole Chinese character base, belong to one the input Chinese character the verbal association word and with the current stroke code string of having imported all Chinese characters as the prefix of its stroke coding, be the verbal association word of prefix matching, and they are arranged in order according to the height of frequency of utilization separately;

4. in whole Chinese character base, do not belong to one the input Chinese character the verbal association word and with the current stroke code string of having imported all Chinese characters as the prefix of its stroke coding, be the non-verbal association word of prefix matching, and they are arranged in order according to the height of frequency of utilization separately.

3 design proposals about the button rule of Chinese character input

Concrete button operation rule in the Chinese character input process will be described below.

3.1 stroke coding mode about the Chinese character input

Encode Chinese characters for computer is the another kind of expression-form of Chinese character.In the present invention, except the supplementary means with non-coding factor improved the method for input speed, also requirement can be accelerated the input speed of Chinese character by encode Chinese characters for computer self.For this reason, select coding unit rightly, the Chinese character coding rule of design science, and set up the stroke coding of each Chinese character in the Chinese character base in view of the above.

Chinese character input system involved in the present invention is on the basis of the related specifications that meets the national language literal, the encode Chinese characters for computer that foundation is easy to learn and use.It is categorized as known five kinds with the basic stroke of Chinese character: horizontal, vertical, left, points, discount, and according to the stroke and the order of strokes observed in calligraphy of Chinese-character writing Chinese character is encoded, and carry out the Chinese character stroke search operaqtion in when input as clue.

3.1.1 stroke type about Chinese character

" stroke " of Chinese character (stroke) is meant, constitutes the least unit of regular script Chinese character pattern.It is in writing Chinese characters, each time point or the line that writes out from the first stroke of a Chinese character of starting to write.

In " contemporary Chinese common word table " and " Modern Chinese general words normative stroke order ", stipulated five kinds of basic stroke types (i.e. " form of a stroke or a combination of strokes ", stroke feature), they are: one (horizontal stroke), Shu (erecting), Pie (left-falling stroke), Dian (some), Ya (folding).

In superincumbent five kinds of basic forms of a stroke or a combination of strokes, the branch of chief editor's shape (basic stroke feature) and postscript shape (subordinate strokefeature) is arranged again.For example, in the basic form of a stroke or a combination of strokes " (horizontal stroke) ", comprise chief editor's shape " (horizontal stroke) " and postscript shape " (carrying) "; In the basic form of a stroke or a combination of strokes " Shu (erecting) ", comprise chief editor's shape " Shu (erecting) " and postscript Xing “ 亅 (lifting-hook) "; In the basic form of a stroke or a combination of strokes " Pie (left-falling stroke) ", there is not postscript shape; In the basic form of a stroke or a combination of strokes " Dian (point) ", comprise chief editor's shape " Dian (point) " and postscript shape " (right-falling stroke) "; At basic form of a stroke or a combination of strokes “ Ya (folding) " in comprise a various foldings stroke.

In superincumbent five kinds of basic forms of a stroke or a combination of strokes, can merger be two classes, a promptly flat form of a stroke or a combination of strokes (plane stroke feature) and a folding form of a stroke or a combination of strokes (turningstroke feature).Wherein, a flat form of a stroke or a combination of strokes has four kinds of basic forms of a stroke or a combination of strokes: one (horizontal stroke), Shu (erecting), Pie (left-falling stroke), Dian (point); A folding form of a stroke or a combination of strokes has a kind of basic form of a stroke or a combination of strokes: Ya (folding).

3.1.2 verify its rationality as encode Chinese characters for computer unit from the usage frequency of five kinds of basic stroke types

3.1.2.1 character library statistics

Usage frequency when constituting in order to add up each comfortable Chinese character of basic stroke type " apostrophe folding anyhow " in the Chinese character, at first constitute sample analysis with the stroke of including the Chinese character in " Modern Chinese general words normative stroke order ", and the usage frequency of five kinds of basic stroke types when constituting these Chinese characters added up, its data result is as follows:

In this " Modern Chinese general words normative stroke order ", the Chinese character of including adds up to 7000, the appearance total degree of the basic stroke of " apostrophe folding anyhow " is 75290 times, the average formation stroke number of each Chinese character is (75290/7000 ≈) 10.76, and the appearance situation of each basic stroke type wherein is:

One (horizontal stroke): (overall usage frequency is about: 30.48%) to occur 22948 times altogether;

Shu (erecting): (overall usage frequency is about: 19.12%) to occur 14397 times altogether;

Pie (left-falling stroke): (overall usage frequency is about: 15.93%) to occur 11997 times altogether;

Dian (point): (overall usage frequency is about: 16.73%) to occur 12596 times altogether;

Ya (folding): (overall usage frequency is about: 17.73%) to occur 13352 times altogether.

3.1.2.2 text statistics

Consider the usage frequency factor of each Chinese character in Chinese, through the statistical study that the stroke in each Chinese character in the some pieces of typical articles is constituted, find " apostrophe folding anyhow " stroke usage frequency when Chinese character constitutes also with the digital basically identical of the number percent of above statistics.

3.1.2.3 data conclusion

As a kind of method of Chinese character coding of science, each participates in coding unit as far as possible all equiprobability ground appearance when Chinese character is imported of encode Chinese characters for computer, because can improve code efficiency like this.From top statistics, the probability of occurrence of " apostrophe folding anyhow " is not unbalance especially, consider the simplicity of encode Chinese characters for computer mode simultaneously, will " apostrophe folding anyhow " be satisfactory basically as the stroke coding unit of Chinese character, this code element sorting technique and Hanzi coding scheme also are rational.What deserves to be mentioned is that in passing only from balanced angle of code element usage frequency, among current some Chinese-character stroke input method, " folding " stroke type has been carried out more class segmentation, meaning is also little.

3.1.3 order of strokes observed in calligraphy rule about Chinese character

Except the stroke type of Chinese character, the stroke order when the another one key factor of carrying out encode Chinese characters for computer is Chinese-character writing." order of strokes observed in calligraphy " of Chinese character is meant, the sequencing of stroke during a Chinese-character writing.

The general rule of Chinese-character order of strokes is as described below:

1. earlier go up afterwards (routine word: dawn, star, chapter, army, three);

2. earlier the left back right side (routine word: positive, bright, beat, thank);

3. earlier horizontal back perpendicular (routine word: ten, do, hit, the king, visit);

4. cast aside afterwards earlier and press down (routine word: go into, eight, people, branch, ginseng);

5. in the earlier outer back (routine word: week, wind, ask, with, use);

6. seal behind the inside earlier (routine word: field, order, group, state, enclose);

7. the first intermediate and then both sides (routine word: little, water, wood, forever, hold concurrently);

8. add frame (routine word: mountain, act of violence, deep and remote, assistant officer, urgently) behind the first centre.

Above-mentioned is general principle, owing to complex structure, the body variation of Chinese character are various.The order of strokes observed in calligraphy of different words is integrated uses of mentioned above principle, and not necessarily too adheres rigidly to.

3.2 button operation scheme about the Chinese character input

Five buttons that how to utilize in the five key groups will be set forth in this part, carry out three kinds of involved in Chinese character input process button operations: stroke retrieval, selected, the tabulation page turning of Chinese character.And the page capacity of hypothesis candidate Chinese character tabulation is 4 word/pages or leaves.

3.2.1 (brief note is: stroke retrieval=five code elements, five keys are pressed input to scheme one; Chinese character is selected=the long four-way key of pressing; Tabulation page turning=length is by center key.)

3.2.1.1 stroke retrieval

Utilize i.e. " apostrophe folding anyhow " conduct coding unit of five kinds of basic strokes, Chinese character is encoded, and utilize five buttons of " up and down " in the five key groups,, import its stroke coding successively according to the order of strokes observed in calligraphy that will import Chinese character.

Five kinds of strokes are corresponding one by one with five buttons, about the case example of their corresponded manners as shown in Figure 4, wherein, on-horizontal, down-perpendicular a, left side-left-falling stroke, the right side-point, in-roll over.In this scheme, be easy to associate stroke type with its corresponding form of a stroke or a combination of strokes tendency and its representative by the position of each button in whole five key groups, this can help the vision that the user provide usefulness, therefore also will each stroke type be printed on the respective keys in the five key groups.

When carrying out the stroke retrieval according to this encode Chinese characters for computer mode,,, import successively by five buttons of " up and down " in " pressing " five key groups respectively its " apostrophe folding anyhow " stroke according to the stroke formation and the stroke order of desire input Chinese character.For example, in suc scheme, the stroke coding of " structure " word is: horizontal (1), perpendicular (2), left-falling stroke (3), point (4), left-falling stroke (3), folding (5), folding (5), point (4), code length is 8.

3.2.1.2 Chinese character is selected

When the Chinese character of desire input comes across among the candidate Chinese character tabulation current page, by in " long by " five key groups with the corresponding four-way key in this Chinese character position, can directly select and import this Chinese character.

3.2.1.3 tabulation page turning

By " long pressing " center key, to the unidirectional circulation page turning of candidate Chinese character tabulation carrying out.

3.2.2 (brief note is: stroke retrieval=five code elements, five keys are pressed input to scheme two; Chinese character is selected=two four-way keys of pressing; Tabulation page turning=two by center key.)

3.2.2.1 stroke retrieval

Content is same as the description of " retrieval of 3.2.1.1 stroke " part in the front scheme one.

3.2.2.2 Chinese character is selected

When the Chinese character of desire input comes across among the candidate Chinese character tabulation current page, by in " two by " five key groups with the corresponding four-way key in this Chinese character position, can directly select and import this Chinese character.

3.2.2.3 tabulation page turning

By " two pressing " center key, to the unidirectional circulation page turning of candidate Chinese character tabulation carrying out.

3.2.3 (brief note is: stroke retrieval=four code elements, quadruple linkages are pressed input to scheme three; Chinese character is selected=center key+four-way key; Tabulation page turning=center key+center key.)

3.2.3.1 stroke retrieval

Utilize five kinds of basic strokes promptly four kinds among " apostrophe folding anyhow " Chinese character is encoded, and utilizes four buttons of " up and down " in the five key groups as coding unit, according to the order of strokes observed in calligraphy that will import Chinese character, import its stroke coding successively.

Select four kinds when as coding unit Chinese character being encoded among five kinds of basic strokes " apostrophe folding anyhow ", five kinds of case study on implementation will be arranged, they are respectively: the compiling method of ignoring " horizontal stroke " utilizations " perpendicular apostrophe is rolled over "; The compiling method of ignoring " erecting " utilization " horizontal apostrophe folding "; The compiling method of ignoring " left-falling stroke " utilization " folding anyhow "; Ignore the compiling method that " point " utilization " is cast aside folding " anyhow; The compiling method of ignoring " folding " utilization " apostrophe anyhow ".Be that example is described further now with last a kind of situation.

Utilize four kinds of flat strokes in " apostrophe folding anyhow ", promptly " apostrophe anyhow " encodes to Chinese character as coding unit.

Four kinds of strokes are corresponding one by one with four buttons, about the case example of their corresponded manners as shown in Figure 5, and wherein, on-horizontal, down-perpendicular a, left side-left-falling stroke, the right side-point.In this scheme, same because of the imagery corresponding relation between form of a stroke or a combination of strokes tendency and the key position, will each stroke type be printed on the respective keys in the five key groups yet.

When carrying out the stroke retrieval according to this encode Chinese characters for computer mode, stroke according to desire input Chinese character constitutes and stroke order, with its " apostrophe anyhow " stroke, import successively by four buttons of " up and down " in " pressing " five key groups respectively, do not import and " folding " stroke that occurs in the Chinese character formation is ignored (skipping).For example, in suc scheme, the stroke coding of " structure " word is: horizontal (1), perpendicular (2), left-falling stroke (3), point (4), left-falling stroke (3), point (4), code length is 6.

3.2.3.2 Chinese character is selected

When the Chinese character of desire input comes across among the candidate Chinese character tabulation current page, " press " center key, " press " in the five key groups and the corresponding four-way key in this Chinese character position again by elder generation, can directly select and import this Chinese character.

3.2.3.3 tabulation page turning

By continuous " pressing " center key twice, to the unidirectional circulation page turning of candidate Chinese character tabulation carrying out.

3.2.4 supplementary notes to above three kinds of button operation schemes

Above three kinds of rules of just generally using about the button operation schemes of Chinese character input, also need some particular problem is wherein made concrete supplementary notes.

3.2.4.1 three kinds of button operation schemes respectively have quality

Make a general survey of the button operation scheme of front three kinds of Chinese characters input, they be by what (five/four) of encode Chinese characters for computer unit the difference mode when multiplexing with the four-way key (long by/pair by/assist) different, formed scheme combination.They respectively have deficiency on the button operation mode, in scheme one, because of having used " long pressing " operation of button, when Chinese character is selected and tabulate page turn over operation, often need operator's visual wait; In scheme two, because of having used " two pressing " operation of button, when the stroke search operaqtion, the minimum value in the time interval during to the identical stroke of continuous input has been made restriction; In scheme three,, when Chinese character is selected and tabulate page turn over operation, need to use the collateral key of center key as prefix because of having used " assisting " operation of button.

3.2.4.2 to omitting the quality comment of the Hanzi coding scheme of rolling over stroke in the scheme three

Processing mode according to " folding " stroke in the top scheme three, when each coding unit of input Chinese character, to import the flat form of a stroke or a combination of strokes in the Chinese character (horizontal, vertical, left-falling stroke, point) in the mode of jumping, and ignore a folding form of a stroke or a combination of strokes (folding) wherein, so the user need not to consider that the folding pen of a multitude of names classifies.

Simultaneously, owing to omitted " folding " stroke in the Chinese character, when the stroke coding of input Chinese character, as long as the relative order between " apostrophe anyhow " is correct, and the position of " folding " stroke between them do not need to consider, just can correctly carry out the input of stroke coding.This be because, in the stroke and order of strokes of Chinese character, relative order between " folding " stroke non-" folding " stroke (apostrophe anyhow) adjacent with it is considered as regardless of the user, the capital does not participate in encode Chinese characters for computer because of " folding " stroke, and only imports the constant stroke coding of relative fixed order that relates to " apostrophe anyhow ".Therefore, this processing mode also can reduce the requirement that the operator grasps Chinese-character order of strokes to a certain extent except the coding rule that makes Chinese character is more succinct, and perhaps it can be to a certain extent has fault-tolerant ability to the order of strokes observed in calligraphy of Chinese character input.

On the code efficiency of unit of encoding to Chinese character, (formula: the Log for example because the average required theoretical code length of each Chinese character that is determined by the Chinese character sum ₅7000 ≈ 5.50, Log ₄7000 ≈ 6.39), less than the average stroke sum (10.76) of Chinese character.So after having omitted " folding " stroke in the Chinese character, it is feasible utilizing the stroke of remainder that Chinese character is encoded, and will more can reflect the formation characteristics of Chinese character so on the whole, thereby more effectively each Chinese character difference is come.In fact, after having omitted " folding " stroke in the Chinese character, the statistics of the stroke coding of 7000 Chinese characters of including in " Modern Chinese general words normative stroke order " is shown that the average stroke number of Chinese character reduces to 8.85 by 10.76, equally greater than numerical value 6.39.

But when omitting the Hanzi coding scheme of " folding " stroke above adopting, the complete stroke coding scheme with respect to " apostrophe folding anyhow " will inevitably cause the increase of the average required code length of Chinese character in theory.For example, when the Chinese character that uses adds up to N=1000, theoretical code length increase to (Log ₄N-Log ₅N) ≈ 0.69; When the Chinese character that uses adds up to N=3000, theoretical code length increase to (Log ₄N-Log ₅N) ≈ 0.80; When the Chinese character that uses adds up to N=7000, theoretical code length increase to (Log ₄N-Log ₅N) ≈ 0.89; When the Chinese character that uses adds up to N=20000, theoretical code length increase to (Log ₄N-Log ₅N) ≈ 0.99.

It was gratifying, owing to exist " redundancy " sign indicating number in the encoding of Chinese stroke, and cause the phenomenon of " stroke code of input is unnecessary ", when with at interval, when the mode of jumping is imported non-" folding " stroke in the Chinese character stroke and stroke order, to improve this phenomenon to a certain extent, also may not cause the increase of encode Chinese characters for computer length to some Chinese character.For example, (its complete stroke coding is: 1452 with " rain ", 4444) be nearly 31 of the Chinese characters of radical, their lexicographic orders according to complete " apostrophe folding anyhow " stroke coding be arranged as: " shake of sacrificial rities for pryaing for rain in ancient times despot graupel continuous heavy rain frost needs tempora thunderbolt mist clouds thunder to reveal the mould secondary rainbow of Ling thunderbolt haze zero mist hail cloud tints cease raining or snowing a very short time heavy rain excessive rains mist snow rosy clouds thunderclap suddenly ".In their complete " cast aside anyhow and press down folding " stroke coding, the coding prefix part " 1452 " of these Chinese characters can be different from them other Chinese character in the Chinese character base fully.Stroke coding part " 4444 " after the continuation input is positioned at these prefixes, that belong to " rain " word equally, these 31 Chinese characters that meet the retrieval requirement are unexpectedly without any variation.Stroke coding part " 4444 " is exactly " redundancy " sign indicating number in the encoding of Chinese stroke, and they do not play any effect for the scale of dwindling the Chinese character tabulation.When adopting the stroke coding method of " apostrophe anyhow " that omit " folding ", (its complete stroke coding is: 142 when input " rain ", 4444) the coding prefix part " 1424 " of word can be different from these 31 Chinese characters of front other Chinese character in the Chinese character base afterwards.Though the stroke coding part " 444 " that continues the input back afterwards, the scale that meets the Chinese character that retrieval requires is also without any variation, and it is 8 o'clock effect that stroke code number 7 of its overall input will reach foregoing input stroke number of codes equally.

The minimizing of first quantity of encoding on the one hand, can cause the increase of the required stroke coding length of Chinese character in theory; And on the other hand, the stroke sum that participates in coding in the Chinese character is limited, when it fails to satisfy the needs of this code length increase, can cause the existence of a large amount of repeat code Chinese characters.For example, when above adopting, omitting the Hanzi coding scheme of " folding " stroke, the statistics that 7000 Chinese characters that process is included " contemporary Chinese common word table " carry out behind the stroke coding shows, common property is given birth to 628 groups of repeated code words (stroke coding of the Chinese character in every group is identical), and they relate to 1777 words altogether; Certainly, when running into the input of repeat code Chinese character, and nonessentially carry out page turn over operation, because have only when the repeated code word that will import does not come across the homepage of candidate Chinese character tabulation, the button operation of the page turning that just is necessary to tabulate.In these repeat code Chinese characters, have 65 groups of repeated code words in the above, relate to 448 words altogether, their repeated code number of words orders in every group have all surpassed 4 words.Therefore, page capacity for the candidate Chinese character of 4 word/pages or leaves is tabulated, must have by the non-homepage Chinese character that page turning is searched (448-65 * 4=) 188, in view of this, the number percent of these Chinese characters in whole Chinese character base is also little, only is (188/7000 ≈) 2.69%.For the Chinese character that these page turnings are searched, according to statistics, their required average page turning number of times are 1.20.

By comparison be that the complete stroke coding mode for " apostrophe folding anyhow " has 219 groups of repeated code words, amounts to 486 Chinese characters.In the Chinese character of each group repeated code, the repeat code Chinese character number greater than 4 only have one group, have the Chinese character of 7 repeated codes in this group: " for a long time spoon ball sunset all reach ", their stroke coding is " 354 ".

3.2.4.3 code length is the input of zero Chinese character

In the above in the scheme three, when the stroke coding method of " folding " utilization " apostrophe anyhow " was ignored in use, the code length that will cause the Chinese character that all is made of " folding " stroke (have 2 Chinese characters: second, narrow eyes into a slit) was zero situation; When the stroke coding method of " horizontal stroke " utilization " perpendicular apostrophe folding " was ignored in use, (have 3 Chinese characters: code length one, two, three) was zero situation will to cause the Chinese character that all is made of " horizontal stroke " stroke; When use is ignored the stroke coding method of " erecting " utilization " horizontal apostrophe folding " or is ignored the stroke coding method of " left-falling stroke " utilization " folding anyhow " or ignore the stroke coding method of " point " utilization " left-falling stroke folding anyhow ", to can not cause this situation, because the Chinese character that all is made of perpendicular, left-falling stroke, some stroke in the Chinese character base does not exist.

For because of stroke coding length being the zero input problem that can't carry out the Chinese character of stroke retrieval, except the stroke coding scheme of using " horizontal apostrophe folding " or " folding anyhow " or " casting aside folding anyhow " instead, can also use following method:

One of, the every tabulation at candidate Chinese character is under the original state, all these special Chinese characters (" second, narrow eyes into a slit " or ", two, three ") enumerated out among homepage, need not stroke this moment and retrieves and can directly select and import them.When the Chinese character that will import be not they and after beginning to import the stroke coding of Chinese character, these special Chinese characters are not because of meeting stroke retrieval requirement, and can from current candidate Chinese character tabulation, disappear.

Two, only be under the original state of the candidate Chinese character tabulation after entering this Chinese character input system, just these special Chinese characters (" second, narrow eyes into a slit " or ", two, three ") are enumerated out among homepage, need not stroke this moment and retrieve and can directly select and import them.After beginning to import the stroke coding of Chinese character, these special Chinese characters promptly disappear from the candidate Chinese character tabulation.Under the original state of other situation, these special Chinese characters do not appear among the candidate Chinese character tabulation.Therefore, in the time will importing these special Chinese characters once more, need withdraw from this Chinese character input system earlier, reenter then.

Except above-mentioned two kinds of methods, a kind of relatively more passive solution is that input method of Chinese character state of the present invention is switched to other input method status, and for example spelling input method is imported these special Chinese characters.

In the above in the first method, the Chinese character (" second, narrow eyes into a slit " or " one, two, three ") of Zero-code length is put among the homepage under the original state of the candidate Chinese character tabulation under the various situations, more can embody front " 2.4 ordering attribute " the described content of part about the candidate Chinese character tabulation, the code length of these special Chinese characters belongs to and mates word fully because of identical with the current stroke coding length of having imported (being zero).Simultaneously, owing to special processing is not done in the input of these special Chinese characters, this has also embodied the unification of all Chinese characters on input rule and succinct.But in a single day the candidate Chinese character tabulation is in original state, and the Chinese character of these Zero-code length always takies the Chinese character position in the tabulation homepage, and is unfavorable for direct selected import of more verbal association word without the stroke retrieval.

3.2.4.4 candidate Chinese character tabulation automatically reset and the people for resetting

The Chinese character of preserving in the current candidate Chinese character tabulation is according to the result for retrieval of stroke code string in whole Chinese character base of having imported all the time; But the stroke code string that ought import is illegal, and when promptly not having the Chinese character as coding or coding prefix in the code book, system will remove current all stroke codes of having imported automatically, and make candidate Chinese character tabulation turn back to previous original state.

In Chinese character input process, though the stroke code of having imported is legal, the operator recognizes that they belong to keystroke mis-operation for the Chinese character that will import, and also can utilize the CLR key to remove this moment.Its mode is under any mode of operation after the Chinese character input is carried out, by pressing or growing by the CLR key, to remove current all stroke codes of having imported, and make the candidate Chinese character tabulation turn back to previous original state.

In front, no matter be illegal and the automatically reseting of causing of stroke code, or keystroke mis-operation and the people that carries out are for resetting, system all will remove whole stroke codes of having imported, but not last stroke code of current input.Its reason is, the mistake of stroke coding often is not that a stroke code by last input causes first, but caused by the order of strokes observed in calligraphy of mistake, need restart to import the stroke coding of Chinese character; Second can only show a stroke code of last input on the inputting interface of the present invention, and can not show all stroke codes of having imported simultaneously, the operator also can't see clearly them and remove.

3.2.4.5 the extended mode of keypress function

In the above in three kinds of schemes about the button operation of Chinese character input, by being used, the four-way key is different from that stroke retrieval, Chinese character are selected, other button operation mode of tabulation page turning, also promptly use other key value of four-way key, to the type realization function expansion of institute's input character in this input system.For example, scheme one can be used the method for " two pressing " four-way key; Scheme two can be used the method for " long pressing " four-way key; Scheme three can be used the method for " long pressing " or " two pressing " four-way key.Provide two examples that this Chinese character input system carried out the function expansion below:

One of, utilization is to other key mode of four-way key, under the situation that does not change the Chinese character input state, import four the most frequently used punctuation marks, and make candidate Chinese character tabulation turn back to original state, and this original state is same as the original state that enters when not carrying out any button operation after this Chinese character input system.As an example, the corresponding relation between four buttons and four punctuation marks is respectively: go up key-comma (); Following key-fullstop (. or.); Left button-question mark (?); Right button-exclamation mark (! ).

Two, utilize other key mode to the four-way key, Chinese character input list state that respectively will be current switches to other more special character and imports list state, these special character lists can be:

---stroke coding length is the input list state of zero Chinese character in this input system.I.e. " second, narrow eyes into a slit ", perhaps " one, two, three " word is placed on them in the tabulation separately, need enter when the operator imports these two Chinese characters in this tabulation and select input.In fact, it is foregoing " code length is the input of zero Chinese character ", and a kind of solution of problem is provided.

---the input list state of punctuate commonly used.Be various full-shapes and half-angle punctuation mark, for example but be not limited to following these:,.：；！？·‘’“”()[]{}「」【】<>《》——……

---the input list state of conventional sign.Be the input of various special symbols, emoticon, identifier etc., for example but be not limited to following these :+-* ÷=±～* @#$ ∵ ∴ ∷ ... √ ⊥ ∥ ∠ ⊙ ◎ ∫ ∮ ≡ ≌ ≈ ∞ ∝ ≠ ≮ ≯≤〉=α β ε ♂ ♀ | ‖/%﹠amp; ∨ ℃ of ￠ ¤ of $ ※ ∑ ∏ ∈ Ω ∧ № § ☆ ★ △ ▲ ◇ ◆ zero ● ■ 〓

The arrangement mode of these special characters of front in its tabulation is same as the cruciform that candidate Chinese character is tabulated.But, when selecting the character of importing wherein, can directly " press " the four-way key; When character lists being carried out unidirectional circulation page turn over operation, can directly " press " center key.

After entering into special Chinese character or symbol input list state and importing a character, though perhaps entered into this special input list state but do not import any character and pressed after the CLR key, system will automatically return to the Chinese character input state and make candidate Chinese character tabulation be in original state, and this original state is same as the original state that enters when not carrying out any button operation after this Chinese character input system.

Except above-described utilization other key mode to the four-way key carries out the method for function expansion, three kinds of schemes at top button operation about Chinese character input, also can utilize the encoding of Chinese stroke of vacancy to carry out the function expansion, but this need the user to remember the inlet of special coding as feature operation.

3.2.4.6 the switching mode of key-press status

When being distributed on five navigation key in the keypad of equipment such as cell-phone when five key groups of the present invention, under the input editing state of character text, because the function of five navigation key of this moment is defined as usually routinely, (the four-way key) cursor locomotive function up and down and the input of (center key) text finish the affirmation function.Therefore, a plurality of functions that require that five key groups must have that stroke retrieval, Chinese character are selected, affirmation moved, finished in tabulation page turning, cursor, it need carry out mutual state and switches between character input function and conventional defined function for this reason.

The state of five navigation key between the character input function of newly giving and original conventional defined function switches, and multiple realization thinking is arranged, and is discussed below respectively for example:

One of, utilize other key mode to center key, between two kinds of functional statuses of five navigation key, switch mutually.

In the above in three kinds of schemes about the button operation of Chinese character input, by being used, center key is different from that stroke retrieval, Chinese character are selected, other button operation mode of tabulation page turning, also promptly use other key value of center key, realize the mutual switching between two kinds of functional statuses of five navigation key.For example, scheme one can be used the method for " two pressing " center key; Scheme two can be used the method for " long pressing " center key; Scheme three can be used the method for " long pressing " or " two pressing " center key.

Further for example, can be in scheme three by the mode of " long pressing " center key, the function of five navigation key is switched between character input function and this two states of conventional defined function mutually, and this switching can be carried out in any button operation process under two states at any time.The distinctive mark of two kinds of functional statuses is whether exist as the cruciform candidate Chinese character tabulation of Chinese character inputting interface.Under the Chinese character input state, carry out the various operations of Chinese character input by five buttons of " up and down "; Under conventional definition status, carry out up and down cursor move operation by four buttons of " up and down ", carry out the feature operation of its definition by center key, for example finish the affirmation function for the text input.

Because other button outside the five key groups is not used in the execution of this state handover scheme, it is more convenient to operate.For example directly utilize the method for " long by " center key to realize switching between two kinds of functional statuses in the scheme three, can be implemented under the situation that thumb do not leave five key groups, directly the functional status of switching key.

In addition, it can also be implemented under the situation that does not withdraw from this input method of Chinese character state, utilizes the CLR key that the text character of having imported is deleted.For example, under the original state of candidate Chinese character tabulation, utilize CLR key deletion text character, therewith to the time still exist as the candidate Chinese character tabulation at character input operation interface so that after character deletion, proceed character input operation.

Two, utilize soft key or other key outside the five key groups, between two kinds of functional statuses of five navigation key, switch mutually.

Under the state of Chinese character input, if there is available soft key resource, can utilize the mode of pressing soft key by these idle soft keys are carried out by key definition so fully, the function of five key groups is switched between character input function and this two states of conventional defined function mutually.

Here said " soft key " (soft key), in cell-phone, it has two usually, is positioned at the top of keypad, defines its function under current operation status by software flexible, and gives brief description by the label literal of row at the bottom of the screen.

The mode of operation of this state handover scheme is fairly simple, but requires to exist under the Chinese character input state soft key resource of such free time.If there is not idle soft key to utilize, still can be by " * " key on the standard numeric keyboard, perhaps one of them of " # " key switched the function of five key groups between character input function and this two states of conventional defined function mutually.In any case this switching mode all needs to take other button resources, therefore the execution of this state handover scheme needs whether to investigate these buttons in advance by functional definition.

Three, utilize CLR key and soft key outside the five key groups, between two kinds of functional statuses of five navigation key, switch mutually.

When passing through certain button, soft key for example, switching input method of Chinese character arrives after the input method of Chinese character state of the present invention, the function of five navigation key is in the Chinese character input state at first acquiescently, simultaneously this functional status that switches the soft key of input method of Chinese character is labeled as, the title of input method of Chinese character of the present invention for example is " five keys ".Under the original state of candidate Chinese character tabulation, by the CLR key operation, candidate Chinese character tabulation as the character input operation interface is disappeared, the function of five navigation key switches to conventional defined function by character input function, and the mark literal to the functional status of the soft key that switches input method of Chinese character changes " input " into simultaneously.As long as press this soft key this moment once more, can reenter the Chinese character input state, the mark literal of the functional status of soft key is also correspondingly become again be " five keys ".

In front, when the function with five navigation key switches to character input function by conventional defined function, except being changed to the method for soft key of " input ", can also use such method: reselect or switch input method of Chinese character and arrive input method of the present invention by pressing the mark literal; Or finish the affirmation function what center key was not defined as text input, but under the condition of button free time, press center key, the operation interface of Chinese character input is reappeared; Or " * " on standard numeric keyboard or " # " key be by other functional definition, but under the condition of button free time, press " * " or " # " key, and the operation interface of Chinese character input is reappeared.

In front, when the function with five navigation key switches to conventional defined function by character input function, used the CLR key operation.When the candidate Chinese character tabulation is in original state, to press the CLR key candidate Chinese character tabulation as the character input operation interface is disappeared, five navigation key enter into conventional defined function state; And when candidate Chinese character tabulation is in non-original state, need at first press the CLR key once to make it reset to original state, and then press the CLR key and once get final product.Disappear at operation interface, after withdrawing from the Chinese character input state, can utilize the character in the CLR key deletion text, in this point and one of switching mode, candidate Chinese character is tabulated during by the character in the CLR key deletion text under the Chinese character input state, and not disappear be different.

Four, utilize certain hot key outside the five key groups, between input method of Chinese character state of the present invention and other certain input method of Chinese character state, switch mutually, and under other certain input method of Chinese character state, carry out the feature operation of the routine definition of five navigation key.

Can set up a kind of hot key between input method of Chinese character state of the present invention and other certain input method of Chinese character state and get in touch, by certain hot key, state switches with carrying out mutually directly between other certain input method of Chinese character and the input method of Chinese character of the present invention.When five navigation key are in Chinese character input state of the present invention, and need utilize the four-way key in the character text of input, to carry out cursor move operation up and down or utilize center key that the character text of input is finished when confirming operation, can pass through this hot key, earlier input method of Chinese character state of the present invention is switched to other certain input method of Chinese character state, and then carry out necessary operations.Certain this hot key switches, and not only can be used for the operation of the conventional defined function of five navigation key, and all right Iterim Change input method of Chinese character is to solve the input problem that the operator uses the inconvenient Chinese character of current input method.

No matter to this requirement of switching hot key be, be input method of the present invention, or other certain input method, and in their button operation process, this hot key must not have other functional definition.This hot key can be a soft key, perhaps " * " key, perhaps one of them of " # " key.

3.3 the operating process about the Chinese character input is given an example

The design proposal of previously described all many-sides about Chinese character input often has a plurality of options.Having in the design proposal of direct content association with the description that now will carry out (" 3.3 about the operating process of Chinese character input for example ") and the description (" 4 creation method ", " 5 software control method ") that will carry out about Chinese character input process about kanji code notebook data storehouse, be the convenience on the text description, with the basic condition of selecting some concrete options as the hypothesis of further launching to describe, these concrete options are:

1. on the page Capacity design of candidate Chinese character tabulation, select the scheme of 4 word/pages or leaves;

2. in " 3.2 button operation scheme " part about Chinese character input, selection scheme three, and adopt the Chinese character coding method of ignoring " folding " utilization " apostrophe anyhow ";

3. be on the input mode of zero Chinese character at code length, adopt the first kind of processing mode in front, that is to say, every when the candidate Chinese character tabulation is in original state, all two Chinese characters (" second " and " narrow eyes into a slit ") that all are made of " folding " stroke are enumerated out among homepage.

About an example of the operating process of Chinese character input, as shown in Figure 6.

At the middle position of cruciform operation interface,, specifically be exactly with a Chinese character input state that symbol logo is current:

1. the original state of candidate Chinese character tabulation is used symbol

Sign, the appearance of this sign, represent input method of Chinese character state of the present invention enter or the input of a Chinese character is finished or the selected input of a Chinese character before the various button operations that the carried out stroke code having been removed by the CLR key or when the stroke search operaqtion, imported be judged as illegal and require through system and re-enter;

2. in the button operation process of stroke retrieval, the middle position of operation interface shows last stroke code symbol of current input, and four stroke codes of " apostrophe anyhow " are used symbol respectively

Sign;

3. when carrying out the selected or tabulation page turn over operation of Chinese character, press the secondary status after the center key, use symbol Sign;

4. when tabulating page turn over operation, press the state after center key realizes page turning for twice continuously, use symbol Sign.

Enter after the input method of Chinese character state of the present invention the middle position of on screen, tabulating, at first displaying symbol mark as the cruciform candidate Chinese character of operation interface

Position around candidate Chinese character tabulation shows four candidate Chinese characters respectively, and they are the Chinese characters in candidate Chinese character tabulation first page under original state.

Constitute and stroke order according to the stroke that will import Chinese character, by pressing the four-way key in the five key groups, import the stroke coding unit of Chinese character successively, the Chinese character in the candidate Chinese character tabulation is also brought in constant renewal in immediately.Under the correct situation of stroke code input, always the Chinese character that plan will be imported is arranged among the current candidate Chinese character tabulation---although it may not appear within the visible homepage of current screen, be exactly the process that the quantitative range of the current candidate Chinese character of process of stroke retrieval constantly dwindles.Along with the continuous input of stroke code, the quantity size that meets the Chinese character of retrieval requirement will constantly reduce.

For example, after entering this Chinese character input system, the candidate Chinese character tabulation is in original state, because the stroke coding length of " second " and " narrow eyes into a slit " word is zero, they will be positioned at the forefront of whole tabulation.At input stroke coding string " 13421 " successively, afterwards, the Chinese total number in the current candidate Chinese character tabulation will become 10 Chinese characters that meet the retrieval requirement by 7000 promptly to press button " go up under (horizontal stroke) left side (left-fallings stroke) right (point) (erect) go up (horizontal stroke) " successively: " network Luo Fen brings disaster to and cover ancient measure of length, equal to 8 cun quail of dying of dying daytime ".Wherein, preceding 2 words are the coupling of stroke completely, the stroke coupling that back 8 words are prefix.Four of head Chinese characters " network Luo Fen daytime " are presented at the homepage of candidate Chinese character tabulation in them, and other Chinese character can show by page turning.At the middle section of operation interface, show the key bit-identify symbol of last stroke coding key of current input

If continue input stroke code " 4 " this moment, promptly press button " right (point) ", because of there is not corresponding Chinese character in stroke coding " 134214 " in code book, not have as the Chinese character of coding prefix yet, the candidate Chinese character tabulation will automatically return to original state.

In the stroke retrieving, when the Chinese character that will import appears in the current page of candidate Chinese character tabulation, " press " center key, " press " and the mode that will select the pairing four-way key of Chinese character again by elder generation, specify the Chinese character input.For example, said in front candidate Chinese character tabulation homepage shows four Chinese characters when " network Luo Fen daytime ", presses left button again after pressing center key, will successfully import " putting forth energy " word in text.Simultaneously, the candidate Chinese character tabulation comes back to original state, candidate Chinese character tabulation under the original state at this moment, compare with the original state after just entering into this Chinese character input system, though the Chinese total number among it is 7000 still, each verbal association word of " putting forth energy " word of being imported " do not initiate into the fighting capacity bucket is brave " will be displayed on the front portion of candidate Chinese character tabulation.If this moment is input stroke coding string " 2121134 " successively, promptly press button " (erecting) goes up (erecting) upward (horizontal stroke) upward (horizontal stroke) left (left-falling stroke) right (point) under (horizontal stroke) down " successively afterwards, Chinese character in the tabulation of current candidate Chinese character is surplus to be 7, and they are " war fear devices cry the abnormal field ditch of cuckoo ".Wherein, " war " word is the verbal association word that mates fully, and " fear " word is the non-verbal association word that mates fully, and other word is the non-verbal association word of prefix matching.If continue input stroke code " 2 " or " 3 " this moment, promptly press button " (erecting) down " or " left side (left-falling stroke) ", because of there are not corresponding Chinese character in stroke coding " 21211342 " or " 21211343 " in code book, also do not have as the Chinese character of coding prefix, the candidate Chinese character tabulation will automatically return to original state.

Where necessary, can be by pressing the mode of twice of center key continuously, the Chinese character that will import is searched in page turning, and the characteristics of this page turning are, at the unidirectional circulation of all Chinese characters in the current candidate Chinese character tabulation.

In the stroke code input process of Chinese character, at the middle position of candidate Chinese character tabulation, all the time with prompt

Identify last stroke code pairing " upper and lower, left and right " key of current input respectively.The key-position symbol number that can only show last stroke code of current input because of the middle position on cruciform operation circle, and continuously two stroke codes of input might be identical, thus this can only import as stroke code to a certain extent the time feedback of button operation point out.As remedying measure, can utilize animation effect to point out the pairing key-position symbol of the current button of pressing number sign.In addition, the operator also can tabulate the variation of Chinese character in the current page as the button feedback prompting of stroke code input by candidate Chinese character.

When carrying out the selected or tabulation page turn over operation of Chinese character, all should at first press center key, simultaneously at the middle position of operation interface, with symbol As the prompting of button feedback.If after pressing the selected corresponding Chinese character of four-way key this moment, the prompting symbol of middle position becomes

If this moment press center key to the tabulation page turning after, the prompting symbol of middle position becomes

After successfully importing a Chinese character, its verbal association word always preferentially appears at the front portion of the candidate Chinese character tabulation that enters after the original state.For these verbal association words, the same with the non-verbal association word that comes the back, can carry out all that stroke retrieval, Chinese character are selected, the button operation of tabulation page turning.

In the button operation process of Chinese character input in the above, by the various status indication symbols of cruciform operation interface central position

Represent different button operation states respectively.Need to prove, in the image design of state symbol, be not limited to these, can also otherwise designed go out more lively, true to nature, eye-catching symbol logo; On button effective feedback mode,, can also show, produce modes such as animation effect by the temporary transient color that changes, as current button effective feedback prompting approach except the change of state symbol.

4 creation methods about kanji code notebook data storehouse

The generation of the method for Chinese character coding comprises code book establishment and two parts of software development, at first sets forth the establishment of code book here.

Kanji code notebook data storehouse is meant and can realizes the data structure of Chinese character information to the corresponding relation of its respective attributes.It will provide the data support for the operation of this Chinese character input system.

Encoding of Chinese stroke foundation originally is the basis of carrying out the input of the stroke of Chinese character, and the data layout of codebook file as shown in Figure 7.Codebook file adopts the form of linear list to organize data, in its each bar record, putting down in writing the input information of each Chinese character in the Chinese character base, it comprises: Chinese character numbering, Hanzi internal code, stroke coding, code length, association's word table be totally five fields (or claiming data item), will discuss respectively below.

4.1 about " Chinese character numbering " field

In this field, record be the pairing serial number of each Chinese character in the field of back " Hanzi internal code ", be example with 7000 Chinese characters of including in " contemporary Chinese common word table ", its numeral number scope is 0000-6999.

The meaning that designs this field is that as offset variable, combination simultaneously can fast query be arrived the data message of relevant this Chinese character input as the memory address of the first Chinese character of plot by the Chinese character numbering.In software of the present invention is realized, can use the mode of Chinese character numbering to represent its Chinese character itself usually.

4.2 about " Hanzi internal code " field

In this field, record be actually each Chinese character itself in the Chinese character base because each Chinese character is stored in this field with the form of computing machine ISN.

Each Chinese character in the Chinese character base is according to the descending series arrangement of they usage frequencies in Chinese, and this word table of arranging by usage frequency is with reference to various documents, also generates through a large amount of computer statisticses.

4.3 about " stroke coding " field

In this field, record be the reflection each Chinese character stroke and stroke order the numerical coding string.Use 1234 these four numerals to represent four kinds of strokes respectively: 1-horizontal stroke, 2-erect, 3-casts aside, the 4-point.

For the stroke coding of each Chinese character, it creates foundation is " Modern Chinese general words normative stroke order ".

Since four kinds of coding units of " apostrophe anyhow " only appear in the stroke coding string, can adopt one two binary digit to represent a coding unit, for example: the 00-horizontal stroke; 01-is perpendicular; 10-casts aside; The 11-point.By this scheme, a store byte can be preserved four coding units, and the purpose of doing like this is in order to save the storage space of codebook file.

Owing to adopt the coding rule of folding stroke omission, this code length of Chinese character usually can be less than its stroke sum.For example, stroke sum is maximum in 7000 Chinese characters Chinese character Wei “ Nang " word, its stroke adds up to 36, and its complete " apostrophe folding anyhow " stroke coding is " 325111251211321251245251251112213534 "; After omitting " folding " stroke wherein, its code length becomes 29, and its complete " apostrophe anyhow " stroke coding is " 32111212113212124212111221334 ".

4.4 about " code length " field

In this field, record in each Chinese character " stroke coding " field, preserve, as the length of the stroke coding of character string.

4.5 about " association's word table " field

In this field, record be in comprising each word of current Chinese character, be positioned at the list collection of next Chinese character after this Chinese character, and next Chinese character is preserved with the form of Chinese character numbering all.

The method of setting up association's word table is, for each word in the Chinese wordbank, no matter is double word word or multiword word, all is the Chinese character label of back one Chinese character in codebook file added among " association's word table " field of last Chinese character.For example, in word " development ", " exhibition " word is the verbal association word of " sending out " word; In word " why ", " assorted " word is the verbal association word of " being " word, and " " word is the verbal association word of " assorted " word.

What need explanation a bit is, alleged " the verbal association word " of this paper is a kind of generalized concept, it is emphasized be in several Chinese characters of high frequency logotype with respect on next Chinese character of a Chinese character, though it is related to the Chinese character in " word " more, but it also comprises the Chinese character that often connects together and use, although they do not belong to the word in the Chinese dictionary, for example: " words ", " very ", " having write ", " with you ", " over year " etc.

Need explanation on the other hand, the Chinese character numbering of each verbal association word may not be arranged according to the mode that numerical value increases progressively, the algorithm flow of being realized by the software of back as can be known, in any case these Chinese character numberings are arranged, they always put in order according to the size of the indicated usage frequency of " Hanzi internal code " field, appear among the candidate Chinese character tabulation.

5 software control method about Chinese character input process

For realizing Chinese character input system involved in the present invention, provide the case that a kind of software is realized below, its software flow is as described in the accompanying drawing 8, and the control procedure of this software flow is described as follows.

Two-dimensional array list_symbol[7000] the span of data element in [4] is logical variable numerical value T (True) or F (False), the Chinese character that they are identifying current candidate Chinese character tabulation in real time constitutes, and promptly its represents the formation state that each Chinese character in Chinese character base is tabulated to current candidate Chinese character in Chinese character input process.The row address of array element is represented its corresponding Chinese character numbering, and it relates to 7000 Chinese characters that " contemporary Chinese common word table " included, and each row is represented one by its bank address pairing Chinese character in codebook file; The column address of array element is represented their types in current candidate Chinese character tabulation, wherein, first row are the verbal association word that mates fully by the Chinese character of T sign, secondary series is the non-verbal association word that mates fully by the Chinese character of T sign, the 3rd row are the verbal association word of prefix matching by the Chinese character of T sign, and the 4th row are the non-verbal association word of prefix matching by the Chinese character of T sign.At two-dimensional array list_symbol[7000] every value is the element of T in [4], all represent the corresponding Chinese character of Chinese character numbering in code book by its row address representative, be present among the current candidate Chinese character tabulation, and they belong to the Chinese character type by its column address representative; And every wherein value of four column elements is the pairing Chinese character of row of F, will not appear among the current candidate Chinese character tabulation.

No matter when, one-dimension array list_candidate[7000] all according to two-dimensional array list_symbol[7000] [4] structure.To two-dimensional array list_symbol[7000] [4] according to the preferential traversal order of row preface, it with its intermediate value the row number of whole elements of T, leave one-dimension array list_candidate[7000 successively in] in, whole elements in this one-dimension array are exactly the numbering of all Chinese characters during current candidate Chinese character is tabulated.Like this, successively with two-dimensional array list_symbol[7000] in [4] the 1st, 2,3,4 column means be that the row address of the element of T sequentially is recorded in one-dimension array list_candidate[7000] the current candidate Chinese character tabulation that constituted, this order of depositing of its candidate Chinese character is that the Chinese character that meets foregoing candidate Chinese character tabulation puts in order.Array list_candidate[7000] by keeping in the numbering of each candidate Chinese character in the current candidate Chinese character tabulation, the Chinese character of representing current candidate Chinese character tabulation constitutes, its forward the depositing of each element, its element number often gradually reduces along with the continuous input of stroke code.Array list_candidate[7000] in the indexed address of last element preserve by variable list_last, and judge Chinese character number in the current candidate Chinese character tabulation thus.The indexed address of factor group is usually by 0 beginning, so the Chinese character sum in the tabulation of current candidate Chinese character should be (list_last+1), and also be that current candidate Chinese character tabulates with " list_last=-1 " as " list_candidate[7000] be empty table " be the Rule of judgment of sky.

Owing to require the Chinese character in the candidate Chinese character tabulation to repeat, at two-dimensional array list_symbol[7000] in each row element of [4], at any time, it is T that the value of an element can only be arranged at the most, other is F; When if certain Chinese character is not present in the tabulation of current candidate Chinese character, at two-dimensional array list_symbol[7000] value of pairing four the data elements of this Chinese character in [4], inevitable all be F.

One-dimension array list_page[4] that preserve is one-dimension array list_candidate[7000] among continuous four elements, with one-dimension array list_candidate[7000] in per four elements of starting anew be one group, be sent to one-dimension array list_page[4 when will be wherein a certain group] after, wherein first element is at one-dimension array list_candidate[7000] in indexed address preserve by variable list_first.Corresponding to the page capacity that the candidate Chinese character of 4 word/pages or leaves is tabulated, the value of these four elements is exactly the numbering of candidate Chinese character tabulation four Chinese characters that current page shows on screen.When four of element number less thaies in the array, fill with blank.Each shown Chinese character in the current candidate Chinese character tabulation current page is exactly the data decision in the array thus, and the purpose that this array is set is a display buffer of being convenient to display screen.When the Chinese character in the current page that candidate Chinese character is tabulated is shown in screen, by array list_page[4] numbering of four Chinese characters preserving, be their addresses in codebook file, after process inquiry code presents obtains the ISN of corresponding Chinese character, through output system, they are presented at the input method operation interface respectively, are the position, upper and lower, left and right in the candidate Chinese character tabulation, just form the current page of candidate Chinese character tabulation.

After entering this Chinese character input system, before the button operation of stroke retrieval, the whole Chinese characters in the current candidate Chinese character tabulation belong to non-verbal association word.When to two-dimensional array list_symbol[7000] when each data element in [4] carries out initialization, because the code length of Chinese character " second " and " narrow eyes into a slit " is 0, belong to the non-verbal association word of coupling fully, so in this two-dimensional array, with the element value of these two corresponding secondary series of Chinese character be that the element value of T, other row is F; And in the marker element of other Chinese character, all be that the element value in the 4th row is T, the element value in the 1-3 row is F, because they belong to the non-verbal association word of prefix matching.

Before any button operation of a Chinese character input of beginning, the candidate Chinese character tabulation always is in its original state, and it comprises the whole Chinese characters in the Chinese character base.In a Chinese character input process, sometimes because need restart by key input error, so under candidate Chinese character tabulation original state, need by array list_symbol_back[7000] [4] backup array list_symbol[7000] data mode in [4].List_symbol[7000] [4] and list_symbol_back[7000] difference of [4] is, the former will carry out Data Update after stroke code of every input, and the latter only preserves the former data under candidate Chinese character tabulation original state.

In codebook file, represent four kinds of stroke codes horizontal, vertical, that cast aside, put respectively if use numeral 1,2,3,4, for with codebook file in data consistent, when the button operation of stroke retrieval, with variable key_index also according to the difference of the key value key_code of " up and down " key of scanning, correspondingly assignment is 1,2,3,4, and they represent that respectively the stroke code of importing is horizontal, vertical, left-falling stroke, point.But for the specific stroke code string of formerly importing, four numerals of the 1-4 of follow-up input are not all to be legal, because they may constitute stroke code combination non-existent, empty in the codebook file.Utilize array key_index_legal[4 for this reason], identify current four stroke codes may importing, which is legal, which is illegal.Array key_index_legal[4] in four elements, utilize respectively numerical value T/F sign stroke 1/ horizontal stroke, 2/ perpendicular, 3/ cast aside, 4/ legitimacy as the current stroke code that will import, for example as array key_index_legal[4] value be { ' T ', ' F ', ' T ', ' F ' } time, be illustrated in the current stroke code that will import, " 1/ horizontal stroke " and " 3/ casts aside " is legal stroke code, and " 2/ is perpendicular " and " 4/ point " are illegal stroke code.

Array key_index_legal[4] in the element value, come from stroke search operaqtion last time process, the observation in advance to each next stroke of Chinese character to the visit of codebook file the time gathers.Array key_index_legal[4] during data initialization, by horizontal, vertical, cast aside, the Chinese character of the some first stroke of a Chinese character always exists, so the value of its four elements is T.

Utilize the comparison of the code length of each Chinese character in variable key_len and the codebook file, be easy to judge that the Chinese character of current coupling is to belong to prefix matching, still mate fully.

One-dimension array mark_type[7] seven changeless characters of middle preservation:

They are the set at the various condition prompting symbols of candidate Chinese character tabulation middle position demonstration.That variable mark_current deposits is one-dimension array mark_type[7] in a certain concrete prompting symbol, be used to identify current Chinese character input state, and when its value be

One of them the time, the function of four-way key is the input of stroke coding, the value of indexed variable mark_flag is 1; When its value is

The time, the function of four-way key is the selected of candidate Chinese character, the value of indexed variable mark_flag is 0.

When the legitimacy of the stroke code of judging input, utilize numerical value (key_index-1) as indexed address, inquiry array key_index_legal[4] in the value of respective element whether be that T gets final product.After the stroke code of confirming input is legal, will be to array key_index_legal[4] in numerical value reset, promptly at first with the illegal state of their full recoveries for acquiescence, the value of four elements all is F, then in the code book query script of stroke retrieval, according to next stroke type that runs into, to array key_index_legal[4] in the respective element assignment be T.

When carrying out the operation of stroke retrieval, at array list_symbol[7000] in [4], for the 1st, 2 column means is the row number pairing Chinese character of the element of T, to no longer carry out the stroke matching operation, because after newly having imported a stroke code, the code length of these Chinese characters can be less than the current stroke code sum of having imported, and they will all be eliminated, so be that the element of T all changes F into the 1st, 2 column means.

When the operation of carrying out stroke retrieval, at array list_symbol[7000] in [4], be the row number pairing Chinese character of the element of T for the 3rd, 4 column means, still to proceed the operation of stroke retrieval.According to inquiry,, these Chinese characters are carried out three types processing respectively at different situations to codebook file:

1. if the corresponding encoded unit in the stroke coding of last stroke code of current input and candidate Chinese character is different, then change the elements corresponding value into F by T, i.e. the disappearance of T zone bit, this shows that its pairing Chinese character will be superseded from current candidate Chinese character tabulation;

2. if the corresponding encoded unit in the stroke coding of last stroke code of current input and candidate Chinese character is identical and its code length equals the current code length of having imported, then the sign of the T in this row element is moved to secondary series by the 4th row, perhaps move to first row by the 3rd row, be moving of T zone bit, this shows that its pairing Chinese character will continue to be retained among the current candidate Chinese character tabulation, but its phase contraposition preface is by in advance, for preferentially showing;

3. if the corresponding encoded unit in the stroke coding of last stroke code of current input and candidate Chinese character is identical and its code length still greater than the current code length of having imported, then the sign of the T in this row is not carried out any processing, continue to be retained in the position of its original the residing the 3rd or the 4th row, it is the maintenance of T zone bit, this shows that its pairing Chinese character will continue to be retained among the current candidate Chinese character tabulation, and its type is constant.

In the above the 2., 3. under two kinds of situations, when judging that the Chinese character that is run into satisfies the stroke retrieval and requires, also will be by the inquiry to code book, next stroke type of these Chinese characters put on record records array key_index_legal[4] among.Its method is that stroke type pairing element in this array of newly verifying is written as numerical value " T ".For example, in the process of stroke coupling, if next stroke type of verifying is " horizontal stroke ", then with element key_index_legal[0] assignment is " T ", the rest may be inferred.

When the Chinese character that will import comes across screen, and will be to the selected button operation of current candidate Chinese character tabulation carrying out Chinese character the time, difference according to the concrete four-way key in the five key groups of selected Chinese character on operation interface, to be stored in array list_page[4] in the Chinese character numbering of relevant position, according to inquiry to codebook file, obtain its pairing Hanzi internal code, and this Chinese character is inserted into the current cursor part of character input text.Meanwhile, two-dimensional array list_symbol[7000] data in [4] are with respect to the data that just enter after this Chinese character input system, readjust, and this shows in the change of each Chinese character DISPLAY ORDER in the current candidate Chinese character tabulation.Promptly in whole Chinese character base, every verbal association word that belongs to an input Chinese character, its corresponding T indicate and will move to the 3rd row by the 4th row.And these verbal association words are at two-dimensional array list_symbol[7000] pairing row address in [4], inquire about its " association's word table " time by code book during by the last Chinese character of input and learn.

Candidate Chinese character tabulation after Chinese character is adjusted in proper order, though its candidate Chinese character sum still is bigger number 7000, next each association word that will import probably will be moved to the front portion of candidate Chinese character tabulation.If the Chinese character that will import this moment is positioned at wherein really, so often only need a spot of several stroke codings of input, it can be screened to the homepage of candidate Chinese character tabulation; Even a back association word that Chinese character is not a last Chinese character of importing does not influence the normal input of other non-association word yet.

In the time will tabulating the button operation of page turning to current candidate Chinese character, adjust the value of variable list_first, its method is, and under the situation of not crossing the border, the value of variable list_first increases by 4, otherwise is reset to 0, and this shows as the circulation page turning of tabulation.At one-dimension array list_candidate[7000] in, the indexed address of lead-in begins from expression candidate Chinese character tabulation current page, after move four positions of elements, four element numerical value that begin from reposition are given array list_page[4 again then] get final product.

In conjunction with giving an example of front Chinese character input process, the following describes the course of work of this software flow.

After entering this Chinese character input system, two-dimensional array list_symbol[7000] the primary data state of [4] is with accompanying drawing 9 (a) signal.In the drawings, the value of each element is with shadow representation numerical value T, with empty forms registration value F.Correspondingly, one-dimension array list_candidate[7000] in data with accompanying drawings 9 (b) signal, the homepage of current candidate Chinese character tabulation is expressed as accompanying drawing 9 (c).

At input stroke code string " 13421 " afterwards, candidate Chinese character in the candidate Chinese character tabulation decays to 10 by original 7000 and meets this key retrieval character Chinese character, and they are arranged in order according to the lexicographic order of stroke code and are " network (13421), white horse with a black mane (13421), cover (134211), die (1342111), daytime (1342111), quail (134211341), put forth energy (1342121), die (13421234), calamity (1342134), ancient measure of length, equal to 8 cun (1342134) ".Wherein top two Chinese characters are for mating fully, and remaining Chinese character is a prefix matching.In conjunction with the sequencing of each Chinese character in the code book on usage frequency is arranged, the actual arrangement order of these 10 Chinese characters in candidate Chinese character tabulation is: " network, white horse with a black mane, put forth energy, daytime, calamity, cover, ancient measure of length, equal to 8 cun, die, die, quail ", wherein top four Chinese characters will be shown in the homepage of candidate's candidate Chinese character tabulation.At this moment, two-dimensional array list_symbol[7000] [4], one-dimension array list_candidate[7000], the homepage of current candidate Chinese character tabulation uses subgraph (a) and (b), (c) expression in the accompanying drawing 10 respectively.

Behind selected input " putting forth energy " word wherein, current candidate Chinese character tabulation is reset to original state, and it comprises total number of word is 7000.But different with the candidate Chinese character tabulation of front after just entering this Chinese character input system is, below in the word of taking the lead by " putting forth energy " word, " put forth energy first Chinese character after the word " at two-dimensional array list_symbol[7000] logic "Yes" sign in [4] will move to the 3rd row by the 4th row: " disregards own safety; struggle; struggle on without cease; struggle to the very end; the objective of the struggle; rouse oneself, go all out to make the country strong, strive to make progress, forge ahead courageously, do all one can, hard struggle, do all one can to rescue, rise vigorously, do all one can to catch up, courageously, muster one's courage and fight in the vanguard, fight bravely "; they have 8 Chinese characters: " no, bucket, send out, advance, power, rise, bravely, war ", by its usage frequency they will be with " no, send out, rise, advance, war, power, bucket, order bravely " shows.The data mode of this moment is shown in accompanying drawing 11 (a) and (b), (c).

Continuing input stroke code " 2121134 " afterwards, " put forth energy " " war " (2121134) word in the verbal association word of word and continue to keep but become the verbal association word of coupling fully, and produce one fully the coupling non-verbal association word " fear " (2121134), with the non-verbal association word of 5 prefix matching, they are arranged in order according to the lexicographic order of stroke code and are " cuckoo (21211341), abnormal (21211341212), field ditch (21211344), cry (21211344), device (212113442121) ".The ordering of these 7 Chinese characters in candidate Chinese character tabulation is: " war, fear, device, cry, cuckoo, abnormal, field ditch ".The data mode of this moment is shown in accompanying drawing 12 (a) and (b), (c).

It more than is detailed description about specific embodiments of the present invention.What need at last to remark additionally is:

1. product of the present invention is used and is not limited to cell-phone.Above description is an example by means of cell-phone, has schematically provided technical scheme of the present invention.But what deserves to be explained is that the present invention is not limited to this product.Therefore, the foregoing description should be counted as illustrative, and not restrictive.All key informations that is applied to other electronic product that relates to are imported, and utilize the various Chinese character input systems that meet the technology of the present invention feature also to belong to scope of the present invention.

2. implementation method of the present invention is not limited to specific embodiment.Above description has schematically provided technical scheme of the present invention with reference to preferred embodiment, but those of skill in the art of the present invention will recognize at an easy rate, can carry out the replacement of other application and not break away from the spirit and scope of the invention aforementioned content.Deng Jia other implementation method that meets the technology of the present invention feature also belongs to scope of the present invention with it, within the spirit and scope of the present invention, to above-mentioned various specific embodiments, still can make distortion and improvement.

3. essential characteristic of the present invention also is not limited to concrete example.The operation interface of the Chinese character input process that above description is mentioned only is concrete example, and it does not limit actual operation interface, because actual operation interface is relevant with concrete realization software.When being identified at concrete software realization, the true process when each exemplary Chinese character also and not exclusively represent practical operation, each exemplary state symbol can revise equally and perfect.

4. software of the present invention realizes being not limited to concrete data.Above description is by means of concrete code-book data library file, and the Chinese character of enumerating according to usage frequency wherein puts in order, association's word table of each Chinese character etc. is for example, and they also should be counted as illustrative, and not restrictive.In the actual application in present technique field, within the spirit and scope of the present invention, can be optimized and adjust them equally.

Claims

1. the Chinese character input system based on five keys by several related key in the keypad of electronic message unit, realizes character input operation, it is characterized in that:

---the whole operation process of Chinese character input realizes that by concentrating the five key groups that distribute on the keypad it is made of five buttons that are distributed in upper and lower, left and right, middle position relatively;

---the various button operations of Chinese character input are core with the candidate Chinese character tabulation all, can carry out the stroke retrieval to it, Chinese character is selected, three kinds of button operations of tabulation page turning, candidate Chinese character tabulation simultaneously is as the operation interface of Chinese character input, its each page is by on being positioned at, down, a left side, four right subregions constitute, in each subregion, enumerate a candidate Chinese character, perhaps in each subregion, enumerate four candidate Chinese characters, and these four Chinese characters are similarly according to last, down, a left side, right relative position distribution, at the middle position of candidate Chinese character original list, with the current key-press status in the prompting symbol logo Chinese character input process of various imagerys;

---three kinds of button operations in the Chinese character input process, i.e. stroke retrieval, selected, the tabulation page turning of Chinese character, adopt a kind of among following three kinds of scheme rules:

One of, by five buttons in " pressing " five key groups, according to Chinese-character order of strokes, import five kinds of basic strokes of its horizontal, vertical, left, points, discount respectively, by " long pressing " four-way key, Chinese character in the selected respectively candidate Chinese character tabulation current page in correspondingly the subregion is by " long by " center key, to the unidirectional circulation page turning of candidate Chinese character tabulation carrying out;

Two, by five buttons in " pressing " five key groups, according to Chinese-character order of strokes, import five kinds of basic strokes of its horizontal, vertical, left, points, discount respectively, by " two pressing " four-way key, Chinese character in the selected respectively candidate Chinese character tabulation current page in correspondingly the subregion is by " two by " center key, to the unidirectional circulation page turning of candidate Chinese character tabulation carrying out;

Three, by the four-way key in " pressing " five key groups, according to Chinese-character order of strokes, import four kinds among five kinds of basic strokes of its horizontal, vertical, left, points, discount respectively, and the 5th kind of stroke omission do not imported, and " presses " center key by elder generation and " presses " the four-way key again, the Chinese character in the selected respectively candidate Chinese character tabulation current page in correspondingly the subregion, by continuous " pressing " center key twice, to the unidirectional circulation page turning of candidate Chinese character tabulation carrying out.

2. Chinese character input system according to claim 1 is characterized in that, the existence of five key groups in the whole keypad of electronic message unit shows as one of them of following two kinds of forms:

---five buttons that numerical key in the standard numeric keyboard " 2-8-4-6-5 " or " 5-0-7-9-8 " are constituted;

---" on-down-left side-right side-in " five buttons that key constituted of five navigation key in the keypad.

3. Chinese character input system according to claim 1, it is characterized in that, in Chinese character input process, the candidate Chinese character tabulation is made of the Chinese character of four parts, they are followed successively by according to successively putting in order: Pi Pei verbal association word, the non-verbal association word that mates fully, the verbal association word of prefix matching, the non-verbal association word of prefix matching fully, and the Chinese character in each part all is arranged in order by its usage frequency order from high to low.

4. Chinese character input system according to claim 1 is characterized in that, when the stroke search operaqtion, by one of them of following dual mode:

---what if the stroke coding of Chinese character unit utilized is five kinds of basic strokes of horizontal, vertical, left, points, discount, and they by the last key in the five key groups, time key, left button, right button, center key, are imported according to Chinese-character order of strokes respectively correspondingly so;

---if the stroke coding of Chinese character unit utilizes is among five kinds of basic strokes of horizontal, vertical, left, points, discount four kinds, select so wherein four kinds of flat strokes promptly horizontal, vertical, cast aside, point is as coding unit, and they by the last key in the five key groups, following key, left button, right button, are imported according to Chinese-character order of strokes respectively correspondingly.

5. Chinese character input system according to claim 1 is characterized in that, when the selected operation of Chinese character, by one of them of following dual mode:

If---in each subregion of candidate Chinese character original list, enumerate a candidate Chinese character, so when Chinese character is selected, directly according to the position that will select the subregion of Chinese character in operation interface, choose the subregion at its place by the corresponding four-way key in the five key groups, can select this Chinese character;

If---in each subregion of candidate Chinese character original list, enumerate four candidate Chinese characters, so when Chinese character is selected, at first according to the position that will select the subregion of Chinese character in operation interface, choose the subregion at its place by the corresponding four-way key in the five key groups, then according to selecting the particular location of Chinese character in subregion, " press " corresponding four-way key, can select this Chinese character.

6. Chinese character input system according to claim 1, it is characterized in that, if utilize among five kinds of basic strokes of horizontal, vertical, left, points, discount four kinds Chinese character to be carried out stroke coding as coding unit, and these four kinds of strokes be erect, left-falling stroke, point, folding, or horizontal, vertical, left-falling stroke, point, the stroke coding length that can cause the part Chinese character so thus is zero, for the input of the Chinese character of these Zero-code length, adopts one of them of following dual mode:

---the every tabulation at candidate Chinese character is under the original state, all the Chinese character of these Zero-code length enumerated out among homepage, and this moment is to they directly selected inputs;

---only be under the original state of the candidate Chinese character tabulation after entering this Chinese character input system state, just the Chinese character of these Zero-code length is enumerated out among homepage, and have only directly to select input this moment to them, and among these Chinese characters under the original state of other situation do not appear at the candidate Chinese character tabulation.

7. Chinese character input system according to claim 1, which kind of it is characterized in that, in Chinese character input process, if run into following no matter situation, system will remove current all stroke codes of having imported automatically, and make the candidate Chinese character tabulation turn back to previous original state:

---when the stroke code string of having imported is illegal;

---under any mode of operation in Chinese character input process, after " pressing " or " long pressing " CLR key.

8. Chinese character input system according to claim 1, it is characterized in that, by being used, the four-way key among the five key groups is different from that stroke retrieval, Chinese character are selected, other button operation mode of tabulation page turning, as function expansion ground input other character except that Chinese character, this functionality extension table now is following two types one of them:

---under the situation that does not change the Chinese character input state, import four the most frequently used punctuation marks respectively, be comma, fullstop, question mark, exclamation mark, and make candidate Chinese character tabulation turn back to original state, and this original state is same as the original state that enters when not carrying out any button operation after this Chinese character input system;

---respectively current Chinese character input list state is switched to other more special character input list state, it is the input tabulation of the Chinese character of Zero-code length in this Chinese character input system, the input tabulation of punctuate commonly used, the input tabulation of conventional sign, the arrangement mode of these special characters in its tabulation, be same as the cruciform of candidate Chinese character tabulation, and by the character in correspondingly the subregion in the direct selected respectively tabulation current page of " pressing " four-way key, by direct " pressing " center key unidirectional circulation page turning is carried out in tabulation, after entering into this special character input list state and importing a character, though perhaps entered into this state, but do not import any character and pressed after the CLR key, system will automatically return to the Chinese character input state and make candidate Chinese character tabulation be in original state, and this original state is same as the original state that enters when not carrying out any button operation after this Chinese character input system.

9. Chinese character input system according to claim 2, it is characterized in that, if five key groups are arranged on five navigation key of keypad of electronic message unit, so when text is imported, five key groups both had been used for character input operation of the present invention, be used for the conventional defining operation as five navigation key again, the state of these two kinds of feature operations of five key groups switches, and uses one of them of following four kinds of modes:

---be different from by the center key among the five key groups is used that stroke retrieval, Chinese character are selected, other button operation mode of tabulation page turning, realize the mutual switching between two kinds of functional statuses of five key groups;

---by one in the soft key outside the five key groups in the keypad of electronic message unit, " * " key, " # " key, realize the mutual switching between two kinds of functional statuses of five key groups;

---by CLR key and the soft key outside the five key groups in the keypad of electronic message unit, realize the mutual switching between two kinds of functional statuses of five key groups;

---by one in the soft key outside the five key groups in the keypad of electronic message unit, " * " key, " # " key, between input method of Chinese character state of the present invention and other certain input method of Chinese character state, switch mutually, and under other certain input method of Chinese character state, carry out the feature operation of the routine definition of five key groups.