JPH0660053A - Input device - Google Patents

Abstract

PURPOSE:To input a correct command to a system device by handling input information on a handwriting, etc., from an OCR equally to a key input from a keyboard device. CONSTITUTION:When information on printed or handwritten characters, etc., is inputted and recognized, the recognized codes are converted into keyboard operation codes, which are further converted into a keyboard signal and outputted to the system device. Further, a recognized word comparison part 13 judges whether or not the recognition result of one word saved in a recognition result storage part 11 matches the word of a command character string which is stored in a word dictionary part 12 and provides meaningful operation on the system device 3; and the word judged to match the word is displayed at a display part 14 and when a specification part 15 specifies that the displayed word is correct, the recognition result is sent to a keyboard operation code generation part 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical character reader (OCR) used by connecting to various data processing devices (computer main body) including a document preparation device, an automatic translation device, etc., and a system device such as a filing device. ) Is used for the input device.

[0002]

2. Description of the Related Art Generally, a keyboard device is often used as an input device of a system device such as a data processing device and a filing device, but it takes time to get used to the key input operation of the keyboard device. It was

Therefore, as an input means for assisting a key input operation by a keyboard device, an OCR for optically reading and inputting a handwritten or printed character or symbol, a handwriting such as a handwritten character directly on a board surface is a pressure sensor. There has been proposed a device including a tablet input device that detects a character corresponding to the handwriting and recognizes and inputs the character, and a voice input device that recognizes voice and inputs the corresponding character and the like.

For example, there are the following devices. (1) Recognizing the characters handwritten from the tablet, distinguishing the recognized characters, converting them into an output code of a system distinguishable from the output code from the keyboard device, and outputting the output code and keyboard via an adapter. A character input device that integrates the output code from the device and outputs it to the control processing body (see, for example, Japanese Patent Laid-Open No. 61-223974).

(2) When a handwritten OCR is connected to an information input device capable of inputting information from a voice or keyboard device and a kanji or the like that cannot be read is input, the handwritten OCR
An information input device capable of handwriting input (see, for example, Japanese Utility Model Laid-Open No. 62-62368).

(3) Instead of the key input of the keyboard device or the push button input on the panel, a handwritten input character or a voice input instruction is recognized, and a registration table is created in advance corresponding to the recognition result. An information processing device that selects a registered process (see, for example, Japanese Utility Model Laid-Open No. 62-187340).

(4) A keyboard device for outputting character and numerical codes by pressing a key, a hand scanner and an OCR character read by the hand scanner are identified to generate character and numerical codes, and output from the keyboard device. A personal computer input device having an alphanumeric character recognition unit for outputting the logical sum of and, and handling both the input from the keyboard device and the hand scanner as the same input (for example, see Japanese Patent Laid-Open No. 64-50114).

[0008]

However, each of the above-mentioned devices has the following problems. (1) Since the system of the output code is different for the character input of the tablet and the keyboard device, and the control processing body which receives the output code has to perform the processing for discriminating the output code of the both, the processing efficiency is increased. Not only is it reduced, but it cannot be used as is in conventional general data processing devices.

Further, since only the characters can be handwritten on the tablet and various control information other than the characters cannot be input like the keyboard device, the tablet device cannot be completely used in place of the keyboard device.

(2) Since the voice input, the key input by the keyboard device, and the handwritten OCR input must be input to the main body from separate input interfaces and different recognition processing must be performed respectively, the configuration and program of the data processing apparatus main body. Is complicated and not versatile.

(3) The pre-registered process can only be selected by handwriting character input or voice input, and various information cannot be freely input as in the case of key input by the keyboard device. , Limited to special purposes.

(4) Inputs from the keyboard device and the hand scanner are only character and numeric codes, and other control codes cannot be input. In addition, in general data processing devices such as personal computers and word processors, it is not designed to input character and number codes from the keyboard interface, but to enter the key pressing position (key code) and its on / off information. Since the process of converting it into a character or number code or control code is performed in the main body, inputting the character and number codes is not versatile.

Further, since the logical sum of the codes output from the keyboard device and the hand scanner is output, there is a possibility that simultaneous input by the both may occur to the data processing device main body.

As described above, all of the conventional input devices described above mainly use the key input by the keyboard device, and
R, a tablet input device, a voice input device, etc. can be used as an auxiliary input device, and even an input device other than the keyboard device can input all kinds of information like the keyboard device. There wasn't. Further, there has been a problem that the configuration of the data processing apparatus main body side is complicated due to the increase of the input means, the processing load is increased, or the versatility is lacking.

Further, the system command character string ("DE
In some cases, a word (command character string) having a meaningful operation on the system device side, such as “L”, “FORMAT”, etc.) or a command important for the operation of an application, is input.

At this time, if an erroneous command is input or the input command is erroneously recognized due to an entry error by the operator, if the erroneous command is directly output to the system unit, the system unit malfunctions. As a result, there is a problem that the system device itself and the application work performed by the application are significantly adversely affected.

Further, even if the operator intends to input a command for making a meaningful operation to the system unit, it is converted into a meaningless word in the system unit as it is due to the cause of misrecognition of OCR or operator's entry error. If the data is output to the system unit, there is a problem in that the process is interrupted on the system unit side, which adversely affects the system unit itself and the application work performed by the application.

Further, even if the system unit or the type of the command used changes, if the changed command cannot be input, there is a problem that the versatility is lost. In addition, if the operator is asked to confirm whether or not the command recognized from the input information is correct, it is necessary to perform confirmation work for each command, and it takes time for the information input and the operator's work. There was a problem that the burden also increased.

The present invention has been made in view of the above points, and allows all input information such as printing by OCR or handwritten characters to be handled exactly the same as the key operation input from the keyboard device, and the output of the input information. To enable correct input of commands to make meaningful operation in the previous system unit, greatly improve the versatility and flexibility of input operation, and to use it without changing the data processing unit main body side. It is an object of the present invention to provide a versatile input device capable of performing.

[0020]

In order to achieve the above-mentioned object, an input device according to the present invention is an information input means for optically reading and inputting information such as printed or handwritten characters, and the input means. The input information recognition means for recognizing the generated information and outputting the recognition code, the keyboard operation code creating means for converting the recognition code from the means to the keyboard operation code, and the keyboard operation code from the means for the system device. It is provided with keyboard signal generating means for converting into a corresponding keyboard signal and keyboard signal output means for outputting the keyboard signal to a system device such as a data processing device via a keyboard interface.

Further, the word dictionary means for storing words such as command character strings, etc., in which the system device operates in a meaningful manner by being input to the system device, and the recognition result by the input information recognition means are divided into one word. Recognition result saving means for saving, recognition result comparison means for comparing the recognition result saved in the means with the word stored in the word dictionary means and judging whether or not there is a match, and judgment means for matching by the means A means for displaying the designated word, a means for designating whether or not the word displayed on the means is correct, and a means for sending the recognition result of the word designated by the means to the keyboard operation code creating means. It is a thing.

Further, a match reference value save for saving a reference value as a criterion for judging whether or not the recognition result saved in the recognition result saving means in the recognition word comparing means matches the word stored in the word dictionary means Means should be provided. further,
It is advisable to provide means for registering, changing, or deleting words in the word dictionary means.

Further, the certainty factor storing unit for storing the certainty factor of the recognition result for the word recognized by the input information recognizing unit, the certainty reference value storing unit for storing the reference value for the certainty factor, and the certainty factor storing unit. Provided is a certainty factor comparison means for comparing the stored certainty factor with the reference value stored in the certainty reference value storage device, and the certainty factor for the word determined to match by the recognition word comparison device is the reference value for the certainty factor. It is preferable that the word is displayed on the display means when it is lower than the above.

Further, each of the above-mentioned information input means, input information recognition means, keyboard operation code generation means, keyboard signal generation means, keyboard signal output means, word dictionary means, recognition result storage means, recognized word comparison means,
A keyboard operation code for displaying a word judged to match by the recognized word comparison means, a means for designating whether or not the word displayed in the means is correct, and a recognition result of the word designated as correct by the means. In an input device provided with a means for sending to the creating means and a matching reference value storage means, when the recognition result matches within the reference value stored in the matching reference value storage means but does not completely match, the complete result is obtained. Words that do not match with may be displayed on the display means.

Alternatively, the certainty factor storage unit stores the certainty factor of the recognition result for the word recognized by the input information recognition unit, the certainty reference value storage unit stores the reference value for the certainty factor, and the certainty factor storage unit. A certainty factor comparing means for comparing the certainty factor with the certainty value stored in the certainty reference value storage means, and the certainty factor for the word determined to match by the recognition word comparing means is the reference value for the certainty factor. When it is lower than that, the word may be displayed on the display means.

Further, it is preferable to provide a means for arbitrarily setting the reference value for the coincidence reference value storage means. Further, it is preferable to provide a means for arbitrarily setting the certainty reference value in the certainty reference value storage means.

[0027]

When the input device according to the present invention inputs and recognizes information such as printed or handwritten characters, the input code is converted into a keyboard operation code, and the keyboard operation code is converted into a keyboard signal corresponding to the system device. (Key code and its ON / OFF signal) and output to a system unit such as a data processing unit via a keyboard interface.

Therefore, the system device side can process information such as printed or handwritten characters in the same way as the information input by the key operation from the keyboard device, so that various data using the conventional keyboard device can be processed. The processing device main body (system device) can be connected to the keyboard interface and used without any modification.

Further, the recognition result of the input information is saved for each word, and the saved recognition result is input to the system device stored in the word dictionary means so that the system device has a meaningful operation. The word that is judged to be a match is displayed by comparing with a word such as a command character string, the word that is judged to be a match is displayed, and if the displayed word is designated as correct, the recognition result is operated by the keyboard. Since it is sent to the code creating means, the command judged correct by the operator can be output to the system unit.

Further, if the above-mentioned recognition result is stored with a reference value serving as a reference for judging whether or not a word such as a command character string in which the system device performs a meaningful operation matches, it is stored in the system device. Words similar to the command used can be determined. Furthermore, by registering, changing, or deleting the word in the word dictionary means, the command character string for comparison with the recognition result can be arbitrarily changed.

Further, the certainty factor of the recognition result for the recognized word and the reference value for the certainty factor are stored,
By comparing the certainty factor with the reference value and displaying the word judged to be a match when the certainty factor is lower than the reference value, the operator can confirm only the words that are likely to be erroneous commands. Can be made.

Further, when the recognition result matches within the reference value stored in the matching reference value storing means but does not completely match, the word which is not completely matched is displayed, so that the system device can be displayed. Any word that does not exactly match the command used in can be checked by the operator.

Further, when the certainty factor for a word determined to match the above-mentioned recognition result and a word such as a command character string in which the system device performs a meaningful operation is lower than a reference value for the certainty factor, By displaying the words, the operator can confirm only the words corresponding to the command used in the system device and having a low certainty factor when recognized.

Furthermore, if a reference value as a criterion for determining whether or not the recognition result described above and a word such as a command character string in which the system device performs a meaningful operation match, is set arbitrarily, the system The criteria can be set according to the command used in the device. Further, if the reference value for the certainty factor of the recognition result is arbitrarily set, the reference value can be set according to the certainty factor of the recognition result of the input information.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 2 is an external perspective view of a data processing device using the input device according to the present invention. In the data processing device, the input device 1 has a keyboard interface (I
/ F) A cable 2 is connected to a system device 3 having a document creation function, a data processing function and the like.

The input device 1 is composed of characters, symbols, numbers, etc. printed or handwritten on a document inserted through the insertion opening 1a.
Also, it has a function of optically reading various information such as commands used on the system device side and converting the information into a keyboard signal. Further, the input device 1 is provided with a display unit 12 which is a display such as an LCD for displaying words or the like to be confirmed by the operator on the upper surface of the input unit 1, and further indicates information to be displayed on the screen of the display unit 12. Designating unit 13 which is a touch panel for inputting various information
Is overlaid on the upper side of the screen.

FIG. 1 is a block diagram showing the functional configuration of the first embodiment of the input device 1 shown in FIG. 2 together with the system unit 3. The input device 1 includes an information input unit 4, an input information recognition unit 5, a keyboard operation code creation unit 6, a keyboard operation code creation information storage unit 7, a keyboard signal creation unit 8, a keyboard signal creation information storage unit 9, and a keyboard signal output. Section 10, recognition result storage section 11, word dictionary section 12,
The recognition word comparison unit 13, the display unit 14, the designation unit 15, and the display / designation control unit 16 have respective functions.

The information input unit 4 optically reads information such as characters printed or handwritten on an original with a scanner, binarizes the information, and sends it to the pattern information storage unit 11 and the input information recognition unit 5.

The input information also includes words such as command character strings (hereinafter, also simply referred to as "command") in which the system unit 3 performs a meaningful operation. Input information recognition unit 5
Returns the binarized information received from the information input unit 4
Information recognition processing is performed by CR, and the recognition code is sent to the recognition result storage unit 11.

The recognition result storage unit 11 includes the input information recognition unit 5
The recognition result by is saved for each word. That is, the recognition code of the information such as characters recognized by the input information recognition unit 5 is stored word by word. The word dictionary unit 12 stores words, such as command character strings, in which the system device 3 performs a meaningful operation.

In the command character string, the system unit 3
In the above, "DEL" for instructing file deletion, "RUN" for instructing processing execution, "PRIN" for instructing printing
“T”, “COPY” for instructing copying, “DIR” for instructing directory display, “TYPE” for instructing content display of a text file, and the like.

The recognition word comparison unit 13 is a recognition result storage unit 1.
The word of the recognition result stored in 1 and the command stored in the word dictionary unit 12 are compared to determine whether they match. If they match, the display / designation control unit 16 is notified, and the correct word is sent to the recognition result storage unit 11 based on the confirmation result received from the display / designation control unit 16.

The display unit 14 displays the words judged to match by the recognized word comparison unit 13, and the designation unit 15 designates whether or not the words displayed on the display unit 14 are correct. The display / designation control unit 16 controls the display unit 14 and the designation unit 15.

Based on the information stored in the keyboard operation code creation information storage unit 7, the keyboard operation code creation unit 6 uses the recognition code sent from the recognition information storage unit 12 as a keyboard operation code (for key operation). It is converted into a corresponding code) and sent to the keyboard signal creation unit 8.

Keyboard operation code creation information storage unit 7
Stores the information referred to by the keyboard operation code creation unit 6 in a table format, and a keyboard in which all the information such as characters that can be recognized by the input information recognition unit 5 are associated with the recognition codes as indexes. The operation code is registered.

The keyboard signal creation unit 8 uses the keyboard operation code sent from the keyboard operation code creation unit 6 based on the information stored in the keyboard signal creation information storage unit 9 (on the keyboard device). It is converted into a key code when the key is pressed and its ON / OFF signal) and sent to the keyboard signal output unit 10.

The keyboard signal creation information storage unit 9 stores information referred to by the keyboard signal creation unit 8, and a table of keyboard signal data corresponding to each keyboard operation code (one key input) on the keyboard device. It is registered in the format.

The keyboard signal data is, for example,
When the character "A" is input from the keyboard device to the system device, the keyboard device inputs the key to the system device along with the physical position (key code) of the character "A" in the key arrangement on the keyboard device. Data that indicates that the key is pressed (on) and released (off) is notified, and is notification information regarding key press and key release determined for each key unit on the keyboard device.

The keyboard signal output unit 10 outputs the keyboard signal data received from the keyboard signal generation unit 8 to the system unit 3 via the keyboard I / F cable 2 for exchanging data between the system unit 3 and the keyboard unit. To do.

FIG. 3 is a diagram showing an example of a storage format of keyboard operation code creation information, and FIG. 4 is a diagram showing an example of a storage format of keyboard signal creation information. As shown in FIG. 3, the keyboard operation code creation information is
It consists of recognition data and keyboard operation data. The recognition data is information such as letters, numbers, and symbols corresponding to each key on the keyboard device (for example, "0""A").
The keyboard operation data is information on keyboard operation for inputting the respective pieces of information.

For example, the keyboard operation data for inputting “0” corresponding to the recognition data “0” has the key operation number = 2 (indicating that two key operations are required) as operation data control information. , A pointer to the'alphanumeric 'key in the keyboard signal creation information indicating the operation of the'alphanumeric' key,
Keyboard signal creation information indicating the operation of the "0" key, and is composed of a pointer pointing to the "0" key.

Further, the keyboard operation data for inputting "A" corresponding to the recognition data "A" is key operation number = 2 as operation data control information and keyboard signal creation information indicating operation of the "Katakana" key. From the pointer that points to the "Katakana" key and the pointer that points to the "3" key in the keyboard signal creation information that indicates the operation of the "3" key (since the "A" key also serves as the "3" key) Become.

It should be noted that special marks indicating various control information are also registered in the keyboard operation code shown in FIG. 3, and when the registered special mark is recognized, the keyboard signal of the control key corresponding to the special mark is output. If so, control information such as line feed and shift can also be input.

Therefore, an expansion table for storing special mark information indicating various control information is added to the keyboard operation code creation table for storing information such as characters and symbols to correspond to the keyboard operation code for the special mark. The keyboard signal creation information to be registered is also registered.

For example, the "up cursor" corresponding to the recognition data of the upward arrow of the special mark indicating "up cursor".
The keyboard operation data for inputting is composed of the number of key operations = 1 as operation data control information and a pointer pointing to the “up cursor” key in the keyboard signal creation information indicating the operation of the “up cursor” key.

The keyboard signal creation information is shown in FIG.
As shown in FIG. 3, each key consists of a keyboard signal when the key is pressed and when the key is released, and a plurality of types are provided corresponding to the above-mentioned keyboard operation code information table.

Next, the operation of each part of the input device 1 shown in FIG. 1 will be described. First, when information such as characters is input by the information input unit 4, as a result of the input information recognition unit 5 recognizing the input information, the keyboard operation data corresponding to the corresponding information in the keyboard operation code creation information storage unit 4 is indicated. Output a pointer.

This keyboard operation data includes, as shown in FIG. 5, the number of key operations as operation data control information,
Having key operation information as operation data, the number of key operations is the number of key operations when the recognized character is actually input from the keyboard device, and the operation data corresponds to the input operation procedure, The operations (types of input keys) are arranged in the order of input by the number of key operations. A pointer pointing to the corresponding key stored in the keyboard signal creation information storage unit 9 is set in the key operation information.

The recognition result storage unit 11 sequentially stores the pointers of the recognition results output by the input information recognition unit 5,
Save pointers for words. The recognition result storage unit 11
When the pointer for one word is stored in the word dictionary unit 1, the recognized word comparison unit 13 uses the pointer for one word as a basis.
It is determined whether or not it matches the word stored in 2.

If they match, the display / designation control unit 16 causes the display unit 14 to display the matched word. If they do not match, the pointer for one word stored in the recognition result storage unit 11 is output to the keyboard operation code creation unit 6.

When the word is displayed on the display unit 14 and the correct word is specified by the specifying unit 15, the display / display
The designation control unit 16 sends an instruction to the recognized word comparison unit 13, and the recognized word comparison unit 13 sends a pointer for one word stored in the recognition result storage unit 11 to the keyboard operation code creation unit 6 according to the instruction. .

If no match is found by the comparison in the recognized word comparing section 13, the pointer for one word stored in the recognition result storing section 11 is sent to the keyboard operation code creating section 6.

When the keyboard operation code creation unit 6 receives the pointer which is the recognition result from the recognition information storage unit 12, the keyboard operation code creation information storage unit 7 extracts the number of key operations and operation data corresponding to the pointer, Key operation information (pointer to keyboard signal creation information) is input in order from the operation data by the number of key operations and output to the keyboard signal creation unit 8.

Based on the information in the keyboard signal creation information storage unit 9, the keyboard signal creation unit 8 sequentially outputs the code of the corresponding key by the pointer from the keyboard operation code creation unit 6 and the keyboard signal indicating its pressing and releasing. Output to the keyboard signal output unit 10. Then, the keyboard signal output unit 10 outputs the keyboard signal to the system device 3 via the keyboard I / F cable 2.

FIG. 6 is a flow chart showing the information input processing in the input device 1. First, it is determined whether or not there is an input character, and if there is, a character recognition process is performed for one word to determine whether or not there is a reject character. If there is no reject character by the judgment, it is judged whether or not the recognized word of the input character and the word of the word dictionary unit 12 match, and if they do not match, the keyboard signal of the word is output and the process returns to the first process.

When there is a reject character or when the recognized word matches the word in the word dictionary section 12, the operator is notified and the operator confirms / corrects from the display / designating section to make the operator correct. If is specified, a keyboard signal is output and the process returns to the first step. If there is no input character, this process ends.

That is, the character string input from the information input unit 4 is subjected to recognition processing by the input information recognition unit 5 word by word, and the recognition result is stored in the recognition result storage unit 11. At this time, if there is a reject character in the recognized word, the display unit 14 notifies the operator.

When one word is stored in the recognition result storage unit 11, the recognized word comparison unit 13 determines whether or not there is a word included in the word dictionary unit 12 that matches the word in the recognition result storage unit 11. . If there is a match, it is displayed on the display unit 14 to notify it. Other means such as voice may be used for this notification method.

Next, the operator judges whether or not the recognition result is correct according to the display on the display unit 14, and if the recognition result is incorrect or rejected, the correct word is input from the designation unit 15.

For example, the input information recognition unit 5 displays the information selected as a candidate at the time of the recognition process or the matching word in the word dictionary unit 12 on the display unit 14, and the operator selects the information displayed by the designation unit 15. You should choose it. Further, it is preferable that the correct word can be directly input from the designation unit 15.

When the correct word is confirmed by the operator's designation or correction, the recognition code of the word is sent to the keyboard operation code creating section 6 to create the keyboard operation code, and the keyboard signal creating section 8 is created based on the keyboard operation code. Creates a keyboard signal, and the keyboard signal output unit 10 outputs the keyboard signal to the keyboard I.
Output to the system unit 3 via the / F cable 2.

For example, in the word dictionary section 12, "DEL""F"
When the two words "FORMAT" are registered, when the word of the recognition result matches "DEL" or "FORMAT", the operator is notified to confirm or correct.

In this way, the operator selects, for example, "DEC".
Although the user has intended to input "DE,""DE
Even if it is recognized as “L”, it can be confirmed and corrected, so that the keyboard signal of the word “DEL” is erroneously output, and the system device 3 may be seriously affected unexpectedly. You can prevent things from happening.

Next, the information input processing of ordinary characters other than commands in the input device 1 will be described with reference to the flowchart of FIG. First, when information such as characters is input by the information input unit 4, the input information is sent to the input information recognition unit 5 for recognition processing, and the recognition result pointer is temporarily stored in the recognition result storage unit 11. If the saved word does not match the word stored in the word dictionary unit 12, the recognition result is sent to the keyboard operation code creating unit 6.

Upon receiving the pointer, the keyboard operation code creating section 6 obtains the key operation number Kt from the keyboard creation code information for the corresponding data pointed to by the pointer, and sets the key operation extraction number Kn to 0. The number Kt of key operations is compared with the number Kn of key operations taken out, and if they are equal, it is judged whether or not the input is completed. If YES, the process ends. If NO, the information input process by the information input unit 4 is repeated.

On the other hand, if Kt and Kn are not equal, 1 is added to Kn by the keyboard signal creating unit 8 to obtain the operation of the Knth key from the operation data, and the pointer pointed to is pressed from the keyboard signal creation information. When the keyboard signal is obtained, the keyboard signal output unit 10 outputs the keyboard signal.

Further, when the release-time keyboard signal is obtained from the keyboard signal generation information by the pointer pointed to by the operation of the Kn-th key and output by the keyboard signal output unit 10, the process returns to the process of comparing Kt and Kn, and Kt and Kn. The process is repeated until

Next, an example of actual character input processing in the input device 1 will be described with reference to the block diagram of FIG. Here, the case of inputting the katakana “A” will be described.

The information input section 4 reads the katakana "a" written on the original P, stores the pattern in the pattern information storage section 11 and sends it to the input information recognition section 5, and the input information recognition section 5 causes the katakana "a". Is stored in the recognition result storage unit 11 and the pointer is sent to the keyboard operation code creation unit 6.

Then, the keyboard operation code creating section 6
Includes the data of the number of times of key operation as keyboard operation data corresponding to the recognition data “A” in the information stored in the keyboard operation code creation information storage unit 7,
The pointers for operating the “Katakana” key and the “3” key are sent to the keyboard signal creating unit 8.

In the keyboard signal generation unit 8, the keyboard signal when the "Katakana" key is pressed, the keyboard signal when the "Katakana" key is released, and "" in the information stored in the keyboard signal generation information storage unit 9 by the pointer. The keyboard signal when the 3'key is pressed and the keyboard signal when the '3' key is released are output to the keyboard signal output unit 10.

In this way, information such as characters input by means other than key input is output to the system unit as a keyboard signal as if the key input was made from the keyboard unit. Therefore, the system device can process input information from other than the keyboard device as the same data as the key operation input from the keyboard device.

When the word of the recognition result of the input information coincides with the word of the command character string or the like having a meaningful operation in the system device, the word is displayed, and the operator confirms by the display and confirms that it is correct. Is specified, a keyboard signal for that word is created and output to the system unit, so it is possible to prevent an erroneous command from being output to the system unit due to erroneous recognition or entry error.

The other effects of the input device 1 of this embodiment will be listed below. First of all, as to the improvement of the man-machine interface, (1) it is not necessary to remember the key arrangement, so that the input becomes easy. (2) The skill of key operation becomes unnecessary. (3) Without using an unfamiliar keyboard, not only characters but also various control information (for example, handwriting input)
Half-width characters, double-width characters, line breaks, page breaks, conversions, etc.) can be quickly input by combining characters, symbols, special marks, etc.

(4) There is no risk of erroneous input unless the character or the like is input by mistake. (5) It is possible to easily perform a fixed-form input operation such as starting a business program that is used daily, by reading a card on which a series of operation information is printed and starting the apparatus. (6) Even persons with disabilities can easily input characters and the like.

With respect to the hardware aspect, (7) Since all input information is input as keyboard signals from the keyboard I / F, there is an increase in the load of different recognition processing on the system device side depending on the input means. Absent. (8) It can be used as it is for most data processing devices using a general keyboard and has versatility.

(9) The size can be easily reduced without lowering the operability. (10) When applied to a filing device, the amount of data can be small because a code can be input instead of an image in the filing process, and resources such as a memory in the system device can be effectively used.

Next, a second embodiment of the present invention will be described. FIG. 9 is a block diagram showing the functional configuration of the input device 1 according to the second embodiment together with the system device 3. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In this input device 1, the matching reference value storage unit 17 is added to the input device 1 of the first embodiment described above.

The matching reference value storage unit 17 is used when the recognition word comparison unit 17 determines whether the recognition result stored in the recognition result storage unit 11 and the word stored in the word dictionary unit 12 match. It is a memory that stores a reference value serving as a determination reference.

That is, of the number of characters in the entire word, the matching rate is stored, which is the rate of how many characters should match to determine that the word matches. This matching rate is used as the word dictionary 1
It may be set for each of the two words, or only one may be set for all the words.

Then, the recognized word comparison unit 13 matches the word in the recognition result storage unit 11 with the word stored in the word dictionary unit 12 based on the reference value stored in the matching reference value storage unit 17. Determine whether or not.

That is, in the information input processing in the input device of the second embodiment, the recognition result storage unit 11 is included in the words included in the word dictionary unit 12 by the recognition word comparison unit 13.
It is determined whether or not there is a match rate with a word in the higher than the reference value of the match reference value storage unit 17.

If there is a word with a high matching rate, it is determined that the word in the recognition result storage section 11 matches the word in the word dictionary section 12. The reference value is represented by x / y, which means that for one word composed of y characters, x in y characters is
Indicates that more than one character matches.

For example, "DEL" and "F" are added to the word dictionary unit 12.
A description will be given of a case in which the two words "ORMAT" are registered and the respective reference values 3/3 and 4/6 are stored in the coincidence reference value storage unit 17. If the word recognized as a result of the input information is "DEC", the matching rate with "DEL" is 2/3. Since this is lower than the matching rate 3/3 stored for "DEL", "DEC" is output as it is because there is no matching word.

When the word recognized as a result of the input information is "FORNAT", the matching rate with "FORMAT" is 5/6. Since this is higher than the matching rate 4/6 stored for "FORMAT", the operator is notified and confirmed as a matching.

In this way, if the recognition result and the reference value serving as a criterion for judging whether or not a word such as a command character string in which the system device performs a meaningful operation match, is stored, the system information in the input information is stored. Words similar to commands used on the device can be determined.

Therefore, it is possible to prevent the system device from temporarily interrupting the work of the system device by outputting a keyboard signal of a meaningless word on the system device side due to an erroneous recognition or an entry error. can do.

Next explained is the third embodiment of the invention. FIG. 10 is a block diagram showing the functional configuration of the input device 1 according to the third embodiment together with the system device 3.
The same parts as those in FIG. 9 are designated by the same reference numerals and the description thereof will be omitted.

The input device 1 has a specific interface (I / F) for connecting the system device 3 and the word dictionary unit 12.
18 is added to the input device 1 of the second embodiment described above, and the data transmitted from the system device 3 is transferred to the word dictionary unit 12 via the specific interface 18, and the word dictionary unit 12 receives a word. Register, change, or delete.

Data such as the word is transferred from the system unit 3 in a predetermined format or protocol. For example, it may be downloaded by non-procedural communication (Async) from the system device 3 via the interface of RS-232. Further, a key for instructing the work of registering, changing, or deleting a word is provided in the designation unit 15 of the input device 1, and any work is selected by the key,
The display unit 14 may display and select a word to be registered, changed, or deleted.

In this way, words can be registered, changed, or deleted in the word dictionary section 12, so that it is possible to dynamically change the word dictionary to provide expandability. Therefore, even if the system device or its application is changed, it can be easily used by changing the word used in the system device or its application.

Next explained is the fourth embodiment of the invention. FIG. 11 is a block diagram showing the functional configuration of the input device 1 in the fourth embodiment together with the system device 3,
The same parts as those in FIG. 10 are designated by the same reference numerals and the description thereof will be omitted. In this input device 1, the functions of the certainty factor storage unit 19, the certainty reference value storage unit 20, and the certainty factor comparison unit 21 are added to the input device 1 of the third embodiment described above.

The certainty factor storage unit 19 uses the input information recognition unit 5
The certainty factor of the recognition result for the word recognized by is stored, the certainty reference value storage unit 20 stores the reference value for the certainty factor, and the certainty factor comparison unit 21 stores the certainty factor stored in the certainty factor storage unit 19. The reference value stored in the certainty reference value storage unit 20 is compared.

The processing of the certainty factor comparison unit 21 starts when the recognized word comparison unit 13 has a word corresponding to the input word in the word dictionary unit 12, and sends the comparison result to the recognized word comparison unit 13. .

Further, the input information recognition section 5 performs a recognition process on the input information and also a process of calculating the certainty factor of the word of the recognition result. The certainty factor is the certainty that the recognized word is correctly read, and is obtained, for example, by taking the minimum value of the certainty factor for each character that constitutes the word. In addition, the certainty factor of the character is obtained from the difference between the input information recognition unit 5 and the character dictionary.

Then, when the certainty factor for the word determined to match by the recognized word comparison unit 13 is lower than the reference value for the certainty factor, the word is displayed on the display unit 14.
To display.

FIG. 12 is a flow chart showing a process of inputting information in the input device 1. It is judged whether or not there is an input character, and if there is, a character recognition process is performed for one word and the certainty factor of the word is calculated. Then, it is determined whether there is a reject character.

If there is no reject character as a result of the judgment, it is judged whether or not the character matches the recognized word and the word in the word dictionary section 12, and if not, a keyboard signal for that word is output and the process returns to the first process. If the word matches the word in the word dictionary unit 12, it is determined whether or not the certainty factor is higher than the certainty factor reference value. If the certainty factor is higher, the keyboard signal of the word is output and the process returns to the first process.

When there is a reject character, when the recognized word matches the word in the word dictionary unit 12 and when the certainty factor of the word is not higher than the certainty factor reference value, the operator is notified and the operator's display / designation is performed. The confirmation / correction work by the unit 15 is performed, and if the operator specifies that it is correct, a keyboard signal is output and the process returns to the first process. If there is no input character, this process ends.

That is, the character string input from the information input section 4 is subjected to recognition processing for each word by the input information recognition section 5, and the recognition result is stored in the recognition result storage section 11. The certainty factor of each character recognized in the recognition process is obtained, and the certainty factor of the entire word is calculated by the certainty factor of each character. Therefore, it is possible to quantitatively make a rejection decision based on the certainty factor.

When one word is stored in the recognition result storage unit 11, the recognition word comparison unit 13 matches the word in the recognition result storage unit 11 with the matching reference value storage unit among the words included in the word dictionary unit 12. It is determined whether there is a value higher than the reference value of 17. If there is a word with a high matching rate, it is considered as a candidate to be notified to the operator as a match.

For the candidate word, the certainty factor comparison unit 21 compares the certainty factor of the word recognition result of the certainty factor storage unit 19 with the reference value of the certain word of the certainty reference value storage unit 20 to obtain the recognition result. If the certainty factor is smaller than the reference value, it is decided to notify the operator. This process is performed to determine whether there is a high possibility of erroneous recognition.

For example, "DEL" and "F" are added to the word dictionary section 12.
A description will be given of a case in which the two words "ORMAT" are registered and the respective reference values 3/3 and 4/6 are stored in the coincidence reference value storage unit 17.

When the word of the recognition result is "DEL", it is a candidate to be notified to the operator, but if the certainty factor is higher than the reference value, that is, if the probability of correct reading is extremely high, the operator is notified. To create that keyboard signal.

On the other hand, when the certainty factor is low, the operator is notified. For example, the operator wrote "DEC"
The operator is asked to confirm the low confidence factor such as when the “C” is erroneously recognized as “L”. Similarly, when the word of the recognition result is "FORNAT", the operator is notified because the possibility of erroneous recognition is high when the certainty factor is low.

In this way, the certainty factor of the recognition result for the recognized word and the reference value for the certainty factor are respectively saved, and the certainty factor and the reference value are compared, and the word judged to match is determined. If the confidence level is displayed when it is lower than the reference value, the operator can check only the words that are likely to be erroneous commands, and when the erroneous word is incorrect, the keyboard signal of the correct word corrected by the operator is sent to the system unit. Can be output to.

Therefore, the operator is asked to confirm whether or not the word of the ambiguous recognition result having a high possibility of erroneous recognition is correct, and the erroneously recognized word causes a serious adverse effect which the system device side does not think of. It is possible to prevent a meaningless word being output due to erroneous recognition and temporarily interrupting the work of the system device. Also, the number of man-hours required for the operator at that time can be reduced. It should be noted that, even if an operator makes a mistake in the entry, the item with a high degree of certainty is directly output to the system device side without being rejected and the process is left to the processing.

Next, in the above-described information input of the fourth embodiment, when the recognition result matches within the reference value stored in the match reference value storage unit 17, but does not completely match, the complete match is obtained. The word which was not present is displayed on the display unit 14, and when the certainty factor for the word determined to match by the recognition word comparison unit 13 is lower than the reference value for the certainty factor, the word is displayed on the display unit 14. You may do it.

Next, the processing in this case will be described with reference to the flowchart of FIG. In this process, it is determined whether there is a reject character, and if there is no reject character, it is determined whether the character matches the recognized word and the word in the word dictionary unit 12. According to this determination, if they do not match, the keyboard signal of the word is output and the process returns to the first process.

Further, if they completely match, it is judged whether or not the certainty factor of the word is higher than the certainty factor reference value, and if it is higher, the keyboard signal of the word is outputted and the process returns to the first process.
If it is not higher, notify the operator. Further, if the word in the word dictionary unit 12 partially mismatches (matches at a matching reference value or more), the operator is notified.

That is, the recognized word comparison unit 13 judges whether or not the word included in the word dictionary unit 12 completely matches the word in the recognition result storage unit 11. If they do not completely match, the matching reference value is stored. It is determined whether or not there is a high matching rate by comparing with the reference value stored in the section 17.

Then, the completely matched words are set as candidates for notifying the operator. In addition, the operator is notified of words that do not completely match but have a matching rate of the reference value or more. Further, a word judged to be inconsistent is directly generated as a keyboard signal and output.

For example, "DEL" and "F" are added to the word dictionary unit 12.
A description will be given of a case in which the two words "ORMAT" are registered and the respective reference values 3/3 and 4/6 are stored in the coincidence reference value storage unit 17.

When the word of the recognition result is "DEL", it is considered as a candidate to be notified to the operator. If the certainty factor is higher than the reference value, the keyboard signal is generated without notifying the operator and the certainty factor is low. Notify the operator when. When the recognition result word is "FORNAT", the operator is notified.

In this way, even if the operator intends to write a word registered in the word dictionary section 12 or the operator recognizes it as a meaningless word due to an entry error, the operator can confirm it. However, even if a word that is completely matched with a word registered in the word dictionary unit 12 is recognized, it cannot be determined whether the word is due to the operator's intention or due to an entry error. Therefore, the processing is left to the system device side.

In this way, the certainty factor of the recognition result for the recognized word is compared with the reference value for the certainty factor, and the word judged to match is displayed when the certainty factor is lower than the reference value. By doing so, it is possible to make the operator confirm the word that may be erroneous among the commands used in the system unit.

Further, when the recognition result matches within the reference value but does not completely match, by displaying the word that does not completely match, the command used in the system unit is completely matched. You can ask the operator to confirm all the words that you do not want.

Therefore, a command that is erroneously recognized by the system unit may cause a serious unintended adverse effect, or the work may be temporarily interrupted by a keyboard signal of a meaningless word due to erroneous recognition or entry error. This can be prevented, and the man-hour of the operator at that time can be reduced.

Next explained is the fifth embodiment of the invention. FIG. 14 is a block diagram showing the functional configuration of the input device 1 in the fifth embodiment together with the system device 3.
The same parts as those in FIG. 9 are designated by the same reference numerals and the description thereof will be omitted. In this input device 1, the display / designation control unit 16 '
Thus, the reference value can be arbitrarily set in the matching reference value storage unit 17.

For example, when the operator inputs the matching reference value by designating the information such as the numerical value displayed on the display unit 14 from the designating unit 15 in the matching reference value setting work, the matching reference value is displayed / designated. The unit 16 'sends it to the matching reference value storage unit 17 for storage.

In this manner, if the recognition result and the word such as the command character string in which the system device has a meaningful operation match, the matching reference value which is a reference for judging whether or not to match is set arbitrarily. It is possible to dynamically change the matching reference value according to the command used in the system unit.

Therefore, if the matching reference value for a certain word is increased, it is possible to prevent the word from being judged as matching if the number of matching characters among the characters in the recognition result word increases. This may be used, for example, when the number of words in a character string close to a certain word increases, or when the number of words in a character string close to a certain word increases without requiring notification to the operator.

Next explained is the sixth embodiment of the invention. FIG. 15 is a block diagram showing the functional configuration of the input device 1 in the sixth embodiment together with the system device 3.
The same parts as those in FIG. 11 are designated by the same reference numerals and the description thereof will be omitted. In this input device 1, the display / designation control unit 1
6 "allows the reference value to be arbitrarily set in the confidence reference value storage unit 20.

For example, when the operator inputs a certainty reference value by designating information such as a numerical value displayed on the display unit 14 from the designation unit 15 in the certainty reference value setting operation, the certainty reference value is displayed / designated by control. The unit 16 ″ sends it to the certainty reference value storage unit 20 for storage.

By thus setting the reference value for the certainty factor of the recognition result arbitrarily, the reference value can be dynamically changed according to the certainty factor of the recognition result of the input information. Therefore, by increasing the certainty criterion value for a certain word, the operator can be notified if the certainty factor of the recognition result is not high, and the keyboard signal will not be output unless the operator specifies that it is correct. . This makes it possible to prevent the word from being erroneously recognized when, for example, outputting the keyboard signal of the certain word increases the influence on the system device side.

If the recognition result of the information input by the operator is erroneously recognized, or if there is an error in the operator's entry, if the keyboard signal of the recognition result is output as it is, the recognition result has meaning in the system device. If the word has an action (for example, a system command character string “DEL” or “FORMAT” or a command important for the operation of an application), it has a great adverse effect on the system device itself or the application work performed by the application. The result will be.

In particular, when the software of the system device operates based on the keyboard signal of the command from the input device, it is impossible to prevent the malfunction due to the misrecognition result. Therefore, in the above-described input device of the first embodiment, the system device is provided with a set of words that perform a meaningful operation as a word dictionary, and it is determined whether or not the word matches the word of the recognition result of the input information. I'm checking.

As a result of the check, if the word of the recognition result matches the word of the word dictionary, the word is subjected to the re-recognition process by the logic having a high recognition rate and the keyboard signal of the recognition result is outputted to the system unit. However, in this case, two logics for recognizing information are mounted on the input device, which increases the manufacturing cost. In addition, it is impossible to completely eliminate erroneous recognition even with logic having a high recognition rate.

When the word of the recognition result matches the word in the word dictionary, the input device of the first embodiment displays the matched word to let the operator confirm whether it is correct, and the designation of correctness is made. I try to output only when there is. Therefore, it is possible to prevent erroneous output of a command that may seriously adversely affect the system device due to erroneous recognition or entry error.

Further, although the operator intends to input a meaningful word, a keyboard signal of a meaningless word may be output on the system device side due to misrecognition or entry error.

Therefore, in the input device according to the second embodiment, even when the word as the recognition result is slightly different from the word in the word dictionary, the operator is notified and confirmed. Therefore, the determination is made by comparing the rate of matching of the word of the recognition result with the word of the word dictionary based on the reference value.

Next, the words that have a meaningful operation in the system unit will change with changes in the system unit and applications. Therefore, in the input device of the third embodiment, words are arbitrarily registered in the word dictionary,
You can change and delete the word dictionary dynamically,
The input device has expandability.

Further, even if the operator wants to input a word having a certain meaning in the word dictionary, if the word has to be confirmed, the work load on the operator increases.

Therefore, in the input device of the fourth embodiment, the word input by the operator's intention, instead of erroneous recognition, can be output without being confirmed. for that reason,
If the recognition result is a word with meaning or a word close to it, compare the certainty factor when recognizing the word with the reference value, and confirm with the operator if there is less possibility of misrecognition higher than the reference value. Output as it is without doing.

In the input device according to the fourth embodiment, the handling of the case where the user makes a mistake in inputting a meaningful word but makes a mistake in the input is performed by the system device or the input device. With either of the positively rejected operations, the operation according to the operating environment of the system device can be performed.

Furthermore, the criterion for determining whether or not the word as the recognition result matches the word in the word dictionary varies depending on the operating method of the system device and the type of word close to the word. Therefore, in the input device of the fifth embodiment, it is possible to dynamically change the input device by dynamically setting a matching reference value for the determination so that the input device has expandability.

The reference value of the certainty factor at the time of recognition also changes depending on the operating method of the system device and the degree of influence of the word on the system device. Therefore, in the input device of the sixth embodiment, the reference value of the certainty factor is arbitrarily set so that it can be dynamically changed, so that the input device has expandability.

[0148]

As described above, according to the input device of the present invention, the input information by the information input means other than the keyboard device by the OCR is converted into the same keyboard signal as the key operation input from the keyboard device and the system device. Can be entered. Therefore, it can be used by directly connecting it to various data processing devices using a general keyboard device, greatly improving the versatility and flexibility of input operation and improving the man-machine interface.

Further, the recognition result of the input information is saved word by word, and the saved recognition result is compared with a word such as a command character string in which the system device operates in a meaningful manner to determine whether they match. If the displayed word is specified as correct, the keyboard operation code of the recognition result is sent and the operator confirms and confirms that it is correct. The specified command can be output to the system unit.

Therefore, it is prevented that an incorrect command due to an entry error or an erroneous recognition is output as it is and the system unit does not malfunction, which has a great adverse effect on the system unit itself or the application work performed by the application. You can prevent it from reaching.

Further, if a reference value serving as a criterion for determining whether or not the recognition result of the input information and a word such as a command character string are stored, a word similar to the command used in the system device can be stored. You can judge. Therefore, it is possible to prevent the meaningless words from being output as they are in the system device and prevent the system device itself and the application work performed by the application from being adversely affected.

Further, by registering, changing or deleting a word which is a command character string for comparison with the recognition result, even if the system device or the type of the command used changes, a typographical error or an erroneous entry is made. It is possible to prevent an erroneous command due to recognition or the like or a meaningless word from being output by the system device as it is.

Further, the certainty factor of the recognition result for the word recognized from the input information is compared with the reference value for the certainty factor, and the word judged to match is displayed when the certainty factor is lower than the reference value. By doing so, it is possible to confirm the word that is likely to be misrecognized among the words that match the command used in the system device.

Further, when the recognition result of the input information matches within the reference value for the input information but does not completely match, if the word that does not completely match is displayed, it is used in the system unit. The operator can check all the words that do not completely match the command so that an erroneous command due to a typo or misrecognition cannot be output as it is.

If the certainty factor for a word judged to match the recognition result of the input information and the word such as the command character string is lower than the reference value, the word is displayed so that it can be used in the system unit. Among the words corresponding to the command, the operator can confirm only the word with a low certainty at the time of recognition, so that an erroneous command due to a typographical error or a misrecognition cannot be output as it is.

Furthermore, if a reference value, which is a reference for determining whether or not the recognition result of the input information and the word such as the command character string match, is arbitrarily set, the command used in the system device can be adjusted. The judgment criteria can be changed arbitrarily, and if the reference value for the certainty factor of the recognition result of the input information is set arbitrarily, the reference value is arbitrarily changed according to the certainty factor of the recognition result of the input information. can do. Therefore, the operator can confirm the corresponding word according to each of the reference values.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of an input device according to a first embodiment of the present invention together with a system device.

2 is an external perspective view of a data processing device using the input device shown in FIG. 1. FIG.

3 is a diagram showing an example of a storage format of a keyboard operation code creation table in a keyboard operation code creation information storage unit 7 shown in FIG.

FIG. 4 is a keyboard signal creation information storage unit 9 shown in FIG.
6 is a diagram showing an example of a storage format of keyboard signal creation information in FIG.

5 is a diagram showing an example of a storage format of keyboard operation code creation information in a keyboard operation code creation information storage unit 7 shown in FIG.

6 is a flowchart showing a process of inputting information in the input device 1 shown in FIG.

7 is a flowchart showing details of information input processing by the input device 1 shown in FIG.

FIG. 8 is a block diagram for explaining an example of actual character input processing by the input device 1.

FIG. 9 is a block diagram showing a functional configuration of an input device according to a second embodiment of the present invention together with a system device.

FIG. 10 is a block diagram showing a functional configuration of an input device according to a third embodiment of the present invention together with a system device.

FIG. 11 is a block diagram showing a functional configuration of an input device according to a fourth embodiment of the present invention together with a system device.

12 is a flowchart showing a process of inputting information in the input device 1 shown in FIG.

13 is a flowchart showing another information input process in the input device 1 shown in FIG.

FIG. 14 is a block diagram showing a functional configuration of an input device according to a fifth embodiment of the present invention together with a system device.

FIG. 15 is a block diagram showing a functional configuration of an input device according to a sixth embodiment of the present invention together with a system device.

[Explanation of symbols]

1 Input Device 1a Insertion Port 2,13 Keyboard Interface (I / F) Cable 3 System Device 4 Information Input Section 5 Input Information Recognition Section 6 Keyboard Operation Code Creation Section 7 Keyboard Operation Code Creation Information Storage Section 8 Keyboard Signal Creation Section 9 Keyboard Signal creation information storage unit 10 Keyboard signal output unit 11 Recognition result unit 12 Word dictionary unit 13 Recognized word comparison unit 14 Display unit 15 Designating unit 16, 16 ', 16 "Display / designation control unit 17 Matching reference value storage unit 18 Specific interface (I / F) 19 Certainty factor storage unit 20 Certainty reference value storage unit 21 Certainty factor comparison unit

Claims (8)

[Claims] 1. An information input means for optically reading and inputting information such as printed or handwritten characters, and an input information recognizing means for recognizing the information input by the means and outputting the recognition code. A keyboard operation code creating means for converting the recognition code from the means into a keyboard operation code, a keyboard signal creating means for converting the keyboard operation code from the means into a keyboard signal corresponding to the system device, and a keyboard interface for the keyboard signal. And a keyboard signal output means for outputting to a system device such as a data processing device via the device, and storing a word such as a command character string that causes the system device to perform a meaningful operation by being input to the system device. The word dictionary means for performing the recognition and the recognition result by the input information recognition means are divided into one word. And the recognition result storage means for storing,
Recognized word comparison means for comparing the recognition results stored in the means with the words stored in the word dictionary means to determine whether they match, and means for displaying the words determined to match by the means And means for designating whether or not the word displayed on the means is correct, and means for sending the recognition result of the word designated as correct by the means to the keyboard operation code creating means. Input device. 2. The input device according to claim 1, wherein it is determined whether the recognition result stored in the recognition result storage means in the recognition word comparison means and the word stored in the word dictionary means match. An input device, comprising: matching reference value storage means for storing a reference reference value. 3. The input device according to claim 1, further comprising means for registering, changing, or deleting the word in the word dictionary means. 4. The input device according to any one of claims 1 to 3, wherein a certainty factor storage unit stores a certainty factor of a recognition result for a word recognized by the input information recognition unit, and the certainty factor. Confidence reference value storage means for storing reference values,
A certainty factor comparison unit that compares the certainty factor stored in the certainty factor storage unit with the reference value stored in the certainty reference value storage unit is provided, and the certainty for the word determined to match by the recognized word comparison unit. The input device, wherein the word is displayed on the display means when the degree is lower than a reference value for the certainty factor. 5. The input device according to claim 2, wherein when the recognition result matches within the reference value stored in the matching reference value storage means but does not completely match, the recognition result does not completely match. An input device characterized in that a word is displayed on the display means. 6. The input device according to claim 2, wherein a certainty factor storage unit stores a certainty factor of a recognition result for a word recognized by the input information recognition unit, and a certainty reference value stores a reference value for the certainty factor. A storage unit and a certainty factor comparison unit that compares the certainty factor stored in the certainty factor storage unit with the reference value stored in the certainty reference value storage unit are provided, and the recognized word comparison unit determines that they match. When the certainty factor for a certain word is lower than a reference value for the certainty factor, the word is displayed on the display means. 7. The input device according to claim 2, further comprising means for arbitrarily setting a reference value with respect to the coincidence reference value storage means. 8. The input device according to claim 4 or 6, further comprising means for arbitrarily setting a reference value for said certainty reference value storage means.