JPH0752449B2 - Handwriting input dictionary search device - Google Patents

Description

DETAILED DESCRIPTION [Overview] When a search item is input by handwriting, a special character is used as a substitute for inputting a specific character, and the input operation is simplified.

[Industrial application field]

The present invention relates to a learning device using a computer, and more particularly to an electronic dictionary search device such as a Japanese dictionary or an encyclopedia.

In an electronic dictionary, it is important to have a function to recognize and search words that have been written by hand because it is easy to enter the search target.However, we are accustomed to the problem of uncertainty in recognition and writing complicated kanji. It is desirable to deal flexibly with the use by non-persons.

[Conventional technology]

 FIG. 2 shows the configuration of a conventional handwriting input dictionary search device.

In the conventional example, it is considered that the handwritten character recognition device and the dictionary search device are integrated.

In FIG. 2, 1 is a handwritten character input unit, 2 is a handwritten character recognition unit, 3 is a recognition dictionary storage unit, 4 is a recognition result holding unit,
Reference numeral 5 is a display unit, 6 is a recognition result candidate request input unit, 7 is a search character string holding unit, 8 is an item index storage unit of the search target dictionary, 9 is a character string collating unit, and 10 is a search target dictionary storage unit.

The operation of FIG. 2 will be described below.

When looking up the word "great earthquake", first write the kanji "large" in the handwritten character input unit 1.

This data is recognized by the handwritten character recognition unit 2 and the result is displayed on the display unit 5.

When "Large" is correctly displayed on the display unit 5, "Shake" is input next.

If "large" is not correctly displayed on the display unit 5, the next candidate is requested from the candidate request input unit 6, and the next candidate is continuously requested until "large" is displayed.

If "Large" is not displayed after examining all candidates,
Enter "Large" again and repeat the above operation.

Usually, the three characters "Great Earthquake" are displayed correctly in this way.

After that, the character string collating unit 9 collates with each content of the index storage unit 8 consisting of the headings of the target dictionary 10, and if the index storage unit 8 has the headline "Great earthquake", the target dictionary content storage unit The description is extracted from 10 and displayed on the display unit 5.

[Problems to be solved by the invention]

In the conventional handwritten input dictionary search device, the output of the handwritten character recognition device is simply used as it is as a method of specifying a search word.

The recognition device does not always recognize correctly, and sometimes causes misrecognition. In this case, usually the second best candidate,
The candidates will be searched in order of the third candidate, and so on, and the intended character will be extracted, but if there is no prepared candidate, it is necessary to redo handwriting.

Therefore, a situation may occur in which the intended character does not appear even if rewritten many times. In particular, when a child or a foreigner who is studying Japanese tries to use it, if there are kanji that are unfamiliar with writing, it may not be successful at the time of recognition and there is a high possibility that the dictionary cannot be searched.

[Means for solving problems]

 The structure of the present invention is shown in FIG.

In the figure, 1 is a handwritten character input unit, 2 is a handwritten character recognition unit, 3
Is a recognition dictionary storage unit, 4 is a recognition result holding unit, 5 is a display unit,
6 is a recognition result candidate request input unit, 7 is a search character string holding unit,
Reference numeral 8 is an item towing storage unit of the search target dictionary, 9 is a character string collation unit, 10 is a search target dictionary storage unit, 11 is a special symbol processing unit for collation, and 12 is an instruction input unit on the screen.

[Action]

If a special symbol for input is decided and the information is put in the dictionary of the handwritten character recognition device, when this is written, it is detected as a special symbol and is expressed as a special symbol for retrieval. At the time of search, the process proceeds under the condition that a part corresponding to the special symbol in the search character string is associated with an arbitrary character, and the corresponding headings are sequentially displayed.

Therefore, if there is a difficult Kanji in the word you want to look up, you can replace it with a special symbol and write it.

Further, even if a character is erroneously recognized as a result of recognition of handwriting input, the character is replaced with a special symbol for search by designating the character on the screen, and the same operation as above is performed.

In addition, search for a string that contains some special symbols,
When a character expressed by a special symbol appears as the intended character when the corresponding heading is displayed, by instructing it, it will be fixed to that character in subsequent searches, and unnecessary searches can be reduced. it can.

〔Example〕

 It will be described with reference to FIG.

When looking up the word "great earthquake", first write the kanji "large" in the handwritten character input unit 1.

This data is recognized by the handwritten character recognition unit 2 using the recognition dictionary storage unit 3, and the result is held in the recognition result holding unit 4 and displayed on the display unit 5.

When "Large" is correctly displayed on the display unit 5, the next "Shake" is input.

If the display unit 5 does not correctly display "Large", the candidate request input unit 6 requests the next candidate and continues to request the next candidate until "Large" is displayed.

If "Large" is not displayed after examining all candidates,
Enter "Large" again and repeat the above operation.

Usually, the three characters "Great Earthquake" are displayed correctly in this way. The obtained character string is held in the search character string holding unit 7.

After that, the character string collation unit 9 collates each content of the search storage unit 8 consisting of the headings of the target dictionary 10, and if the index storage unit 8 has the headline "Great earthquake", the target dictionary content storage unit The description is extracted from 10 and displayed on the display unit 5.

Here, for example, let us consider a case where the user does not know the word “quake” and cannot copy it accurately.

At this time, the user inputs the special symbol “*” after inputting “large”.

This symbol is recognized and displayed as "*" on the display unit 5.

In addition, input "disaster" to finally get the display of "great * disaster".

When a search is performed with this, the special symbol processing unit 11 displays "Great fire" on the display unit 5, and when a further search is requested, the next message "Great earthquake" appears. Therefore, request the contents of the dictionary here. Become.

As another example, consider the case of looking up the word "Kanwa Dictionary".

Suppose that "wa" and "ji" were not correctly recognized even though "kanji dictionary" was entered. If the correct display cannot be obtained even if candidates are displayed, the special symbol processing unit 11 can be used by instructing the part corresponding to these two characters (different characters are displayed) on the screen by the on-screen instruction input unit 12. Will change the display to "Kan **".

If you request a search in this state, for example, first you will find "Kanji English Dictionary".
Is displayed.

At this time, if the "letter" portion is designated on the screen, the search character string becomes "Kan * dictionary", and if a further search is requested, for example, "Kanji dictionary" is displayed via "Kanji dictionary".

Now request the contents of the dictionary.

That is, when a character string containing some special symbols is searched and the corresponding heading is displayed, if the character expressed by the special symbol appears as the intended character, that character is not the intended character. By instructing that there is, the special symbol processing unit 11 fixes the special symbol to the character and associates it with the character in the subsequent retrieval.

〔The invention's effect〕

According to the present invention, it is possible to easily search for a word including a character that is unfamiliar to writing or a character that is difficult to recognize. Therefore, it is possible to provide a handwriting input dictionary search means even for a child or a foreigner who is learning Japanese. You can

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, and FIG. 2 is a block diagram showing the configuration of a conventional example. In the figure, 1 is a handwritten character input unit, 2 is a handwritten character recognition unit,
3 is a recognition dictionary storage unit, 4 is a recognition result storage unit, 5 is a display unit, 6 is a recognition result candidate request input unit, 7 is a search character string storage unit, 8 is an item index storage unit of the search target dictionary, and 9 is a character. A column collation unit, 10 is a search target dictionary storage unit, 11 is a special symbol processing unit for collation, and 12 is an instruction input unit on the screen.

Claims (2)

[Claims] 1. A handwritten character recognition function is provided, and a character string obtained by recognizing an input handwritten character is a search target.
If there is a special symbol in the search target character string, in the dictionary search device that searches the dictionary by associating an arbitrary character with the special symbol, the character in the search target character string is designated to indicate the character. A handwriting input dictionary search device, characterized in that means for converting characters into special symbols is provided. 2. A handwritten character recognition function is provided, and a character string obtained by recognizing an input handwritten character is a search target,
If there is a special symbol in the character string to be searched, the dictionary search device that searches the dictionary by associating any character with the special symbol indicates the character in the searched character string that is associated with the special symbol. By doing so, a dictionary input device for handwriting, characterized in that means for fixing the special symbol to the designated character is provided for the subsequent dictionary search.