JPH0769906B2 - Character processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a character processing device for creating a document while converting reading into kanji by kana-kanji conversion, and in particular, character processing that can be input by multi-section kana-kanji conversion. Regarding the device.

[Conventional technology]

2. Description of the Related Art Conventionally, there has been a device that realizes so-called multiple phrase input, which is a multi-segment kana-kanji conversion that allows kana-kanji conversion without specifying a punctuation. Since a dictionary search is frequently performed in inputting such multiple phrases, there is a problem that the conversion time is long.

There are three types of conventional devices to solve this problem. The first type is a device that solves the above problem by using a memory that can be accessed at high speed. By loading a dictionary in a memory that can be accessed at high speed, conversion is performed in real time even if frequent dictionary searches are performed. It is a device that is made possible. The second type of device is a device devised so that the device itself is constructed at a low cost by using a low-speed and inexpensive memory, and the number of dictionary searches is reduced as much as possible.

The third type is a system that uses both the first type and the second type together. That is, in order to keep the price of the device inexpensive, the dictionary itself is held in a low-speed memory, but only the reading information is held in a high-speed memory so that it can be searched at high speed (called a reading dictionary). In this method, the reading dictionary on the high-speed memory is used when dividing the reading string into conversion units, and the original dictionary on the low-speed memory is used for the first time when actually converting to Kanji, so the processing speed is reduced significantly. A low-cost device can be realized without doing so.

[Problems to be solved by the invention]

The disadvantage of the first type is that the device itself is expensive because a large amount of expensive memory is used due to its high speed.

The disadvantage of the second type device is that the conversion accuracy cannot be improved as expected because the number of dictionary searches is infinitely small, and the conversion rate is poor.

The third type of device has two dictionaries, so there is a risk that the two contents will be inconsistent. To prevent this, when the contents of the dictionary change, the operator instructs the reading dictionary. There was a drawback in that the operation of regenerating from the original dictionary had to be performed.

[Means for solving problems]

The object of the invention is to eliminate the above-mentioned drawbacks. That is, the above-described useless dictionary regeneration processing is eliminated to realize a character processing device with a fast conversion time, and a reading string input means for inputting a reading string in a character processing device for creating a document is provided. A first dictionary means for storing a word in correspondence with a reading and a notation, a second dictionary means for storing at least information about reading among the information of the first dictionary means, and the input reading string A reading sequence dividing unit that divides the reading sequence into conversion units by referring to the second dictionary unit; and a reading sequence converting unit that converts the divided reading sequence into a notation by referring to the first dictionary unit. ,
The dictionary change detecting unit includes a dictionary reconstructing unit that regenerates the second dictionary unit from the first dictionary unit and a dictionary change detecting unit that detects a change in the content of the first dictionary unit. This is realized by regenerating the second dictionary by the dictionary reconstructing means in response to the detection of a change in the dictionary contents.

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram of a character processing device according to the present invention.

The reading string dividing means divides the reading string input from the reading string input means into conversion units while referring to the second dictionary, and the reading string converting means refers to the first dictionary and the kanji Convert to kana mixed sentence. The dictionary change detecting means detects whether the contents of the first dictionary have changed, and if so, activates the dictionary reconstructing means. When activated, the dictionary reconstructing means reproduces the second dictionary in which only the reading information is extracted from the first dictionary.

FIG. 2 is an example of the overall configuration of the present invention.

In the configuration shown, the CPU is a microprocessor,
It performs arithmetic operations for character processing, logical decisions, etc., and controls each component connected to these buses via the address bus AB, control bus CB, and data bus DB.

The address bus AB transfers an address signal indicating a component to be controlled by the microprocessor CPU. The control bus CB transfers and applies the control signals of the respective components to be controlled by the microprocessor CPU. The data bus DB transfers data between the constituent devices.

Next, ROM is a fixed read-only memory, and is shown in FIG.
The procedure of control by the microprocessor CPU, which will be described later with reference to FIG. 10, is stored.

The RAM is a writable random access memory having a structure of 16 bits per word and is used for temporary storage of various data from each constituent element.

The TBUF is a document buffer, which is a memory for storing the document information input from the keyboard KB.

YDC is a reading dictionary for dividing an input reading string into conversion units.

FIG. 3 is a diagram showing the structure of the reading dictionary. YMF indicates the reading section, and GIF indicates the grammar information section. The reading part and the grammar information part have the same structure as the dictionary. "Nnn" is entered at the end of the line to form the end mark.

The KB is a keyboard, and is provided with various function keys for instructing various functions for the character processing device such as character and symbol input keys such as alphanumeric keys, hiragana keys, katakana keys, and word registration keys. ing.

DISK is a low-speed, inexpensive memory such as a magnetic disk, and is used for storing a dictionary and documents for performing kana-kanji conversion, a reading dictionary, and other data that needs to be stored. The created reading dictionary is stored in DISK, and the stored reading dictionary is called when necessary by the instruction of the keyboard.

DIC is a dictionary for Kana-Kanji conversion and exists on DISK.

FIG. 4 is a diagram showing the structure of the dictionary. Each word is one word
It consists of 18 bytes. YMF is a reading part, and each reading of each word is represented by 1 byte of 1 byte and the lower byte of JIS C-6226 code. KJF is a kanji part and is expressed in 2 bytes per character using JIS C-6226 code. GIF is a grammar information part, and expresses the part-of-speech information of each word in 2 bytes. Each word is sorted in ascending order of reading.

YDCSV is a reading dictionary save work area that exists on DISK.

CR is a cursor register. The CPU can read and write the contents of the cursor register. The CRT controller CRTC, which will be described later, displays the cursor at the position on the display device CRT corresponding to the address stored here.

The DBUF stores a pattern such as document information stored in the TBUF in the display buffer memory.

The CRTC plays a role of displaying the contents stored in the cursor register CR and the buffer DBUF on the display CRT.

The CRT is a display device using a cathode ray tube or the like, and the display pattern of the dot configuration and the display of the cursor on the display device CRT are controlled by the CRT controller.

Furthermore, CG is a character generator and is a display device.
It stores the patterns of characters and symbols displayed on the CRT.

In the character processing device of the present invention composed of such respective components, it operates in response to various inputs from the keyboard KB, and when an input from the keyboard KB is supplied, first, an interrupt signal is sent to the microprocessor CPU. The microprocessor CPU, which is sent, reads out various control signals stored in the ROM, and various controls are performed in accordance with these control signals.

The operation of the embodiment configured as described above will be described.

FIG. 5 is a diagram showing the concept of multiple phrase input.

(5-1) is one of the example sentences input by the operator.
The word is searched as indicated by the arrow. Next, based on the search result, the input reading string is divided in units of clauses as shown in (5-2), and a kanji-kana mixed sentence as shown in (5-3) is obtained.

That is, in the case of inputting a plurality of phrases, the dictionary search becomes a net of processing time, and therefore the high speed memory must have a dictionary.

FIG. 6 is a flow chart showing the operation of the character processing apparatus of the present invention.

In step 6-1, that is, in the step of loading the initial program, various variables necessary for system operation are initialized. For example, the dictionary change flag F is reset at this time.

In step 6-2, the key input is received from the keyboard KB, and when the key is input, the process branches depending on the type of the key.

Step 6-3 is a case where the word registration key on the keyboard KB is input, and the word registration processing described in detail in FIG. 7 is performed.

Step 6-4 is a case where the conversion key is input, and the conversion processing described in detail in FIG. 8 is performed.

Step 6-5 is a process when another key such as a character key, an insert key, or a delete key is input. When the character key is operated, the input buffer IB is entered, and then it is transferred to TBUF, DBUF and displayed. To be done.

Step 6-6 is a step for transferring from TBUF to DBUF and displaying.

FIG. 7 shows a process when a word is registered. Step 7
-1 is a word registration process. This is a process of newly registering a word having the reading and kanji specified by the operator in the dictionary DIC. Step 7-2 is a process for turning on the dictionary change flag F after the word registration is completed.

FIG. 8 is a diagram describing details of the conversion process.

Step 8-1 is a process for dividing the input reading string in the input buffer IB described in detail in FIG. 9 into conversion units (clauses).
Step 8-2 is a process for converting a reading string divided into bunsetsu units into Chinese characters, which will be described in detail in FIG.

FIG. 9 is a flow describing the details of the reading column division processing.

In step 9-1, the dictionary change flag F is checked, and if it is OFF, the dictionary YDC has not been changed. Therefore, in step 9-2, the dictionary is read from YDCSV on DISK and the dictionary is read as YDC.
And branch to step 9-5. The process of executing loading from DISK is a known technique in a normal character processing device when executing, for example, a document call, and therefore will not be described in particular.

If the dictionary change flag F is ON, the process proceeds to step 9-3, the reading dictionary YDC is created in detail in FIG. 10, and the reading dictionary YDC created in step 9-4 is saved in the buffer YDCSV on DISK. Then, the process branches to step 9-5. D
The process of saving the data in the ISK is a known technique in the ordinary character processing device, for example, when a document is stored, and therefore is not described here.

In step 9-5, the reading dictionary YDC is searched, and what kind of phrase is possible is restored on the buffer L.

In step 9-6, the read-back sequence of the input buffer IB is divided into conversion units by combining the restored clauses. At this time, various methods such as the longest-matching method, the two-phrase longest-matching method, and the minimum number of clauses are used as the division method.

FIG. 10 is a detailed flow of reading dictionary creation.

In step 10-1, the row counter i is cleared.

In step 10-2, check whether the line counter i exceeds the number of dictionary words, and if it exceeds, branch to 10-8.

In step 10-3, the reading information of the i-th word is taken out from the dictionary, and in step 10-4, it is set to the i-th word in the reading dictionary.

In step 10-5, the grammatical information of the i-th word in the dictionary is taken out, and in step 10-6, the reading dictionary is set to the i-th word.

In step 10-7, the row counter i is updated and the step is updated.
Return to 10-2.

At step 10-8, the reading dictionary end marker is set.

At step 10-9, the dictionary change flag F is turned off.

FIG. 11 is a detailed flow of the phrase conversion processing.

In step 11-1, the dictionary DIC is searched to see if there is a word that matches the conversion unit (clause).

In step 11-2, it is judged whether or not a matching word is found, and if found, it is branched to step 11-3 and converted into a kanji string as described in the dictionary. If not found, the process branches to step 11-4 and the hiragana as it is is used as the conversion result.

In step 11-5, the above conversion result is output in the TBUF document and the process returns.

[Other Examples]

In the above embodiments, a dictionary having only readings is assumed as a dictionary for dividing the reading string into conversion units, but even if there is information necessary for increasing the conversion rate other than readings, no dictionary is provided. It does not impair the gist of the present invention. In short,
It is characterized in that only the information necessary for dividing into a conversion unit among the dictionaries necessary for conversion is separated and held in a high-speed memory.

Further, the Japanese sentence creating device for converting kana into kanji has been described as an example, but the result of the present invention is that other things, for example, a device for converting romanized notation into kanji kana mixed sentences, phonetic symbols into English sentences. It can be applied to a conversion device.

As is clear from the above description, since the dictionary is on the low-speed memory, the device itself is inexpensive, and since only the reading information is on the high-speed memory, the conversion time is fast, and a character processing device with a high conversion rate can be used. Can be realized.

Moreover, the reading dictionary was not automatically regenerated from the original dictionary at the time of initial program load IPL, but was regenerated when the contents of the original dictionary changed and was saved when there was no change. Since only the reading dictionary is called, it is possible to realize character processing information with a short conversion time without performing unnecessary processing of reading dictionary regeneration.

〔effect〕

As is clear from the above description, according to the present invention, the dictionary is on the low-speed memory, so the apparatus itself is inexpensive, and since only the reading information is stored on the high-speed memory, the conversion time is fast and the conversion rate is high. A high character processing device can be realized.

In addition, the reading dictionary is automatically regenerated when the original dictionary is changed, so the operability for consistent conversion can be achieved without the contents of the dictionary body and reading dictionary conflicting and adversely affecting the conversion result. It is possible to realize a high character processing device.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a character processing device according to the present invention, FIG. 2 is a diagram showing an example of the overall configuration of the present invention, FIG. 3 is a diagram showing an example of multiple phrase input, and FIG. 4 is a configuration of a dictionary DIC. FIG. 5 is a diagram showing an example of the construction of a reading dictionary, and FIGS. 6 to 11 are diagrams showing an example of a flow chart showing the operation of the character processing device of the present invention. CPU is microprocessor, AB is address bus, CB is control bus, DB is data bus, ROM is fixed memory, R
AM is random access memory, TBUF is document buffer, YD
C for reading dictionary, KB for keyboard, DISK for magnetic disk, D
IC is a dictionary, YDCSV is a reading dictionary save area, CR is a cursor register, CRTC is a CRT controller, DBUF is a display buffer memory, and CG is a character generator.

Claims (1)

[Claims] 1. In a character processing device for creating a document, a reading string input means for inputting a reading string, a first dictionary means for storing words in correspondence with reading and notation, and the first dictionary means. Second dictionary means for storing at least information related to reading among the above information, reading string dividing means for dividing the input reading string into conversion units by referring to the second dictionary means, and A reading string conversion means for converting the read string into a notation by referring to the first dictionary means, a dictionary reconstructing means for regenerating the second dictionary means from the first dictionary means, and the first A dictionary change detecting means for detecting a change in the content of the dictionary means, and the dictionary reconstructing means regenerates the second dictionary in response to the detection of the change in the dictionary content by the dictionary change detecting means. Characteristic sentence Processing apparatus.