JPH0628507A - Bar code input device - Google Patents

Abstract

PURPOSE:To input KANJI(Chinese character), various marks and even a control code by reading a bar code through the use of existed hardware resources. CONSTITUTION:A bar code scanner 1 reads the bar code 4 and a specified character discrimination means 26 discriminates whether a specified character (space character and the like) which is previously decided exists in a character string constituting code data or not. When the specified character does not exist, the character string of the code which is read is transmitted as it is by a regular mode processing means 27. When the specified character exists, a conversion mode processing means 28 collects the respective characters of the character string following the specified character by a prescribed number, converts them into data of a KANJI code in a prescribed bit unit and transmits them. The transmitted data are inputted to a data processing part 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various computers and various information processing devices (systems) using them.
The present invention relates to a bar code input device for inputting various data based on reading a bar code.

[0002]

2. Description of the Related Art Today, by operating various computers such as personal computers by various application programs, a sales management system, an inventory management system, an accounting processing system, a document creation / editing system, an electronic file system, a graphic processing system, Various systems such as a production control system have been constructed and are widely used.

A keyboard is most commonly used to input data to these systems or devices, but in addition, a tablet, digitizer, mouse, touch panel, disk memory, IC card, image scanner, OCR, voice is also used. Various input devices such as input are used, and in recent years, a bar code scanner (also referred to as a bar code reader) for reading a bar code and inputting the code data thereof has been widely used.

A bar code, for example, as shown in FIGS. 6 and 7, is a combination of a bar (wide bar and narrow bar) and a space (wide space and narrow space) having different thicknesses, which allows characters such as numbers and alphabets to be bar coded. It is expressed so that it can be read by a code reader, and it is most popular in POS (Point of Sales: Point-of-Sales Information Management System) in the distribution industry, and its use is rapidly expanding in various fields in recent years.

The input method using such a bar code is
This is a general-purpose system, which has the advantages that the cost of the equipment used is low, it can be input easily and quickly, the recognition rate is extremely high, and there are few false recognitions. There are various types of barcodes, but the most commonly used barcodes are JAN, CODE-39, NW-7, USS-
128, ITF, etc.

[0006]

However, many of such conventional bar codes are generally capable of expressing only numbers or letters in a readable manner. A method called "Kanji bar code" that allows inputting Kanji by reading the bar code has been available for a while, but it has not been widely used, and a bar code printer for printing the bar code and a bar that can read the bar code. There are few code scanners.

Among the commonly used bar codes described above, CODE-39 illustrated in FIG. 6 can represent the most characters, and the numbers 0 to 9 and the letters A to Z (uppercase letters), − ,. , $, /, +,%, And'space '
You can read the symbols of, but you cannot enter lowercase letters of the alphabet, kanji, hiragana, katakana, and other symbols (!, &, *, =, Etc.), and the JIS-8bit control code (DE
(L, BS, TAB, etc.) cannot be entered. Therefore, there is a problem that the use is limited.

Therefore, it is conceivable to newly create a bar code capable of expressing all the characters, symbols, control codes, etc. necessary for input of these various data processing systems, but if this is done, the length of the bar code will only become long. Or, there arises a problem that an existing bar code printer or bar code scanner cannot be used.

The present invention has been made in order to solve the above problems, and existing hardware resources such as bar code printers and bar code readers can be used as they are, and moreover, kanji, hiragana and katakana. , The purpose is to be able to input all necessary data and commands, such as lowercase letters, various symbols and control codes, by reading the barcode.

[0010]

In order to achieve the above object, the present invention has a bar code reading means for reading a bar code and a predetermined specific character string constituting the code data read by the means. A specific character discriminating means for discriminating whether or not there is a character, a normal mode processing means for transmitting each character of the character string as they are, and a specific character discriminating means for discriminating whether or not a specific character is present. (EN) A bar code input device provided with a conversion mode processing means for collecting a predetermined number of characters of a character string following a character and converting the same into data of a predetermined bit unit and transmitting the data.

The specific character discriminating means is means for discriminating whether or not each character of the character string constituting the code data read by the bar code reading means is checked in the reading order to determine whether or not the character is a specific character. At the same time, the normal mode processing means is operated in the initial stage, and means is provided for alternately switching the conversion mode processing means and the normal mode processing means each time the specific character determining means determines a specific character. It should be set to.

It should be noted that any one of "pace character", "%", "start character", and "stop character" may be used as the specific character.

In addition, by inputting the barcode pattern, 2
Means for converting the binarized data, start / stop pattern discriminating means for discriminating whether or not there is a start or stop pattern other than both ends of the binarized data, and decoding the binarized data as it is for a character string When it is determined by the start / stop pattern discriminating means that there is a start or stop pattern, the normal mode processing means for converting and transmitting to Also provided is a bar code input device having conversion mode processing means for converting the data into a predetermined number of characters and then converting the data into a predetermined bit unit data for transmission.

In the bar code input device, the start / stop pattern discriminating means checks the pattern of each character in the reading order except for the start pattern and the stop pattern at the end of the binarized data. The conversion mode is used every time when the start / stop pattern determination means determines the start or stop pattern, and the normal mode processing means is operated in the initial stage. It is preferable to provide a means for alternately operating the processing means and the normal mode processing means.

[0015]

The bar code input device according to the present invention thus configured reads the bar code, determines whether or not there is a predetermined specific character in the character string forming the code data, and If there is no specific character, the character string of the read code is sent as it is in the normal mode, and if there is a specific character, the conversion mode is set and each character of the character string following the specific character is grouped by a predetermined number. The data is converted into a predetermined bit unit data, that is, a kanji code, a kana code, a control code, or the like, and is transmitted. These transmission data can be input to a required data processing device or the like.

In this case, depending on whether or not there is a predetermined specific character at the beginning of the character string forming the bar code read by the bar code reading means, the subsequent series of read data are all in the normal mode. If you decide whether to process or conversion mode,
The switching is easy.

As the above-mentioned specific character, a character that is not used at the beginning of input data, such as "space character" or "%", or the beginning of a bar code pattern that is removed when reading a bar code is usually used. Either a start character indicating a or a stop character indicating an end can be used.

Further, each character of the character string forming the code data read by the bar code reading means is checked in the reading order, and every time there is the above-mentioned specific character,
If the conversion mode and the normal mode are alternately switched, the normal bar code data (numeric characters or alphabetic characters) and other data such as Chinese characters can be continuously input by reading a series of bar codes.

Further, a bar code pattern is input to be binarized data, and it is judged whether or not there is a start or stop pattern other than both ends of the binarized data,
If there is no start or stop pattern, the above binary data is directly decoded, converted into a character string and sent out in normal mode processing. If there is a start or stop pattern, the binary data following it is decoded. It is also possible to perform a conversion mode process in which after converting to a character string, a predetermined number of characters are collected and converted into data in a predetermined bit unit (kanji code, kana code, control code, etc.) and transmitted. By doing this, it is possible to read normal barcode data and other data such as Chinese characters when reading the barcode.

In that case, the start pattern and the stop pattern at the end of the binarized data are excluded, and the patterns for each character are checked in the reading order to determine whether it is a start or stop pattern. , From the initial normal mode, by switching the conversion mode and the normal mode alternately each time a start or stop pattern is discriminated, a series of bar code is read, and normal bar code data (numeric or English characters) and kanji And other data can be continuously read.

[0021]

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 a perspective view showing a hardware configuration of a data processing system showing an embodiment of the present invention. It is a pen type barcode scanner 1 and a laptop type personal computer 2 used as a data processing apparatus. It is configured.

The bar code scanner 1 is a bar code reading means and is activated when the start switch 1a is pressed to start the tip portion 1.
When the bar code printed on a label or the like is emitted from b, the reflected light is received to read the code data represented by the bar code. For example, a bar code such as CODE-39. You can read the code.

The personal computer 2 has a main body 2A and a lid pair 2B which are hinged to each other so as to be opened and closed.
A has a keyboard 21 and a large liquid crystal display (hereinafter simply referred to as "display") on the inner surface of the lid 2B.
22 is provided. The bar code reader 1 is connected to the main body 2B of the personal computer 2 by an interface code 3 having an RS232C connector 3a.

FIG. 1 is a block diagram showing the internal structure (mixing of hardware and function) of this embodiment. The structure and function of this embodiment will be described in more detail with reference to this drawing. The barcode scanner 1 includes an optical / electrical signal converter 1
It is composed of a binary conversion circuit section 12, a bar code decoding section 13, and an interface section (hereinafter abbreviated as "I / F") 14, which is the same as a conventional bar code reading section.

The optical / electrical signal converting section 11 includes a light emitting diode which irradiates the bar code 4 to be read with light, and a light receiving element such as a photodiode which receives the reflected light and converts it into an electric signal according to the brightness. Is equipped with. The binarization circuit unit 12 binarizes an analog electric signal output from the optical / electrical signal conversion unit 11 into a “0” or “1” signal by providing a predetermined threshold level. Is.

The bar code decoding section 13 is a binarization circuit section 1.
The binary data output from 2 is read, the code is read, and the code data is transmitted via the I / F 14. The data is input to the I / F 25 of the personal computer 2 through the interface cable 3.

The personal computer 2 is provided with a data processing section 20 for controlling the keyboard 21 and the display 22 and for performing various data processing, and the data processed therein is processed by a floppy disk drive device (not shown). It can be stored on a floppy disk or sent to another personal computer or host computer using a LAN or telephone line, but can also be output to the printer 5 through the I / F 23 and printed out on paper. it can.

This data processing unit 20 is actually a CP
It functions by a microcomputer composed of U, ROM, RAM, etc., and by using various application programs, various processing such as accounting processing, sales and inventory management processing, document creation / editing processing, drawing creation processing, etc. Data processing can be performed.

Further, in the personal computer 2, a bar code data processing section 24 which constitutes the bar code input device according to the present invention together with the bar code scanner 1 is provided.
Is provided. It is for performing conversion processing and the like according to the present invention on bar code read data input from the I / F 25, and is composed of a specific character discriminating means 26, a normal mode processing means 27 and a conversion mode processing means 28. However, in reality, it has a program processing function by a microcomputer and can be executed by also using the microcomputer of the data processing unit 20.

The specific character discriminating means 26 is the first (first character) in the character string constituting the read bar code data.
Is a means for determining whether or not there is a predetermined specific character. The normal mode processing means 27 functions when there is no specific character at the beginning, and performs a process of sending each character of the input code data (character string) as it is.
The conversion mode processing means 28 functions when there is a specific character for the first time, and performs a process of converting a predetermined number of characters of a character string following the specific character into a predetermined bit unit data and transmitting the data. .

The processing operation of the bar code data processing unit 24 is shown in the flowchart of FIG. When this routine starts, it waits for the input of read data from the bar code scanner 1. If there is an input, it judges whether the first character is a specific character, and if it is not a specific character, the normal mode processing is executed, The character string of the input code data is sent as it is. If the first character is a specific character, a conversion mode process is executed, and a predetermined number of each character in the character string following the specific character is collected and converted into data in a predetermined bit unit and transmitted.

Here, according to this embodiment, CODE-3 is used.
A specific example of inputting Chinese characters using the barcode 9 will be described. The CODE-39 barcode is shown in FIG.
As shown in, there is a pattern of a start code at the beginning and a stop code at the end (the character code of "*", which is the same for both the start code and the stop code).
9 (10 characters) and AZ (26 characters),-,. , $,
/, +,%, And'space 'symbols (7 characters) in total 4
A 3-character pattern can be expressed, and the bar code scanner 1 can decode these 43 characters. One character
Consists of 5 bars and 4 spaces between each bar. The illustrated example expresses "1" and "A".

On the other hand, the Chinese character is represented by a shift JIS code in 2 bytes, that is, in hexadecimal by 4 digits (4 bits per digit). Therefore, "space character" of CODE-39
As a specific character for mode switching, the remaining 42 characters are assigned to each 1-digit 42-digit number (“0 to 41” when corresponding to a decimal number) as shown in Table 1.

[0034]

[Table 1]

If there are 3 digits in this 42-ary number, it can be expressed as a decimal number up to '74088'. On the other hand, the hexadecimal number representing the Chinese character in the shift JIS described above is 4 digits (256
(Corresponding to 2 digits in decimal) The code is a decimal number '6
Up to 5536 ' Therefore, since the three-digit binary number is a little larger, the two-byte code representing the four-digit hexadecimal Chinese character can be represented by the three-digit binary number.

[0036] For example, the letters "purple" in Chinese characters, but in the Shift-JIS code is 8E 87, if this is a 2-byte code as follows. 878E ₁₆ (4 digits of hexadecimal number) After 42 evolution, it becomes as follows. JSA ₄₂ (42-digit 3-digit)

These are arranged in order from the bottom, and the space is placed at the beginning.
If you add a code (a mark indicating that it is a kanji),
Like A S J This uses the code of CODE-39 which shows "kanji" "purple"
This is a barcode that you can use with the CODE-39 barcode
If you enter it on the linter, the barcode will be printed and
You can easily create a barcode like the one shown in (a).
You can

Then, when inputting the kanji "purple"
Scans this barcode with barcode scanner 1
Then, A S J Read as There is a space code at the beginning, so
Subsequent three characters are in 42 base JSA₄₂ And evolve it 16 times. 878E₁₆ Then, the character string is converted to "purple" by the following JIS code.
It becomes a card.8E 87

Therefore, if this shift JIS code is input to the data processing device 20, if it has the function of inputting the Chinese character by the shift JIS code input from the keyboard 21, similarly input the Chinese character "purple", Documents and slips can be created. Further, the character data can be output to the printer 5 and printed.

In addition, since half-width codes (JIS8 codes) and control codes (for example, 1B hexa escape code) are also expressed in hexadecimal numbers, the four digits are collectively converted into 42-digit three-digit numbers and the CODE-39 bar is used. You can write code. Therefore, by reading the bar code, the half-width code and the control code can also be input.

As described above, by the processing of the conversion mode,
If each character of the character string following a specific character is grouped into three characters and regarded as a 42-digit 3-digit numerical value, and converted into 2-byte hexadecimal data in 8-bit units and transmitted, Since the 42-ary system has a higher compression rate than the system that expresses it in the base system, it is possible to input various data and control codes with a relatively short bar code.

Mutual conversion between a 42-ary number and an 8-bit hexadecimal number is easy, and a 2-byte hexadecimal number (4
(Digits), inputting mixed kanji, hiragana, katakana, lowercase letters, various symbols, control codes, etc. (half-width JIS8 code) to various data processing devices that use existing JIS or shift JIS code systems. can do. You can also print it out on a regular printer. You can also enter commands by scanning the bar code, and the keyboard 2
It is also possible to start or stop the required operation without using 1.

Alternatively, for example, when inputting data for a cash accounting book, CO that represents a frequently used kanji string (keyword) such as “accounts receivable” and “accounts payable” in a 42-ary number system.
If the DE-39 bar code is created, these keywords can be input only by reading the bar code. Then, it is easier, faster, and more accurate to input than to input from the keyboard.

Furthermore, if external characters and image data are coded and stored in the data processing device, a CODE-39 bar code corresponding to the code can be created, and by reading the bar code with a bar code scanner. , You can also input the external characters and image data.

Alternatively, phoneme piece data used in a speech synthesizer, digital data for determining the pitch, tone color, tempo, etc. of a music synthesizer are converted into bar codes, which are easily input to those devices by reading them. It is also possible to generate a human voice or musical sound.

Next, another embodiment of the present invention will be described with reference to the flowchart of FIG. The hardware structure and basic operation of this embodiment are the same as those of the above-mentioned embodiment, and therefore their explanations are omitted.

In this embodiment, the function of the bar code data processing section 24 in FIG. 1 described above is slightly different, and the specific character discriminating means 26 constitutes the code data read by the bar code scanner 1 which is the bar code reading means. Each character of the character string is checked in the reading order to determine whether or not it is a specific character, and the normal mode processing means 27 is operated in the initial stage, and when the specific character is determined, the conversion mode processing means 28 operates. Is switched, and when a specific character is discriminated again in that state, the mode is switched to the normal mode processing means 27 again.

In this way, every time the specific character discriminating means 26 discriminates a specific character, the conversion mode processing means 28 and the normal mode processing means 27 are alternately switched and operated, and a series of bar codes are used for normal operation. CODE-3
The code input of 9 and the data input by the conversion processing of Chinese characters and the like can be performed in a mixed manner.

This operation will be described with reference to the flow chart of FIG. 4. Waiting for the input of the read data from the bar code scanner 1, and if there is an input, the mode is set to the normal mode,
The input data is temporarily stored. Then, first, it is determined whether the first character is a specific character, and if it is not the specific character, then it is determined whether the current mode is the conversion mode. At first, since it is the normal mode, the processing of the normal mode (the input read data is sent as it is character by character) is performed.

When the first character is a specific character, the process of switching the mode is performed, but since the normal mode is initially set, the conversion mode is switched. Then, it shifts to the next character and judges again whether it is a specific character. If it is not a specific character, it judges whether the current mode is the conversion mode. If it is the conversion mode, the conversion mode processing (for example, 3 Characters are grouped together and treated as a 4-digit 3-digit number and converted into 2-byte hexadecimal data in 8-bit units and sent out. However, it is reserved until the predetermined number of characters (3 characters) is reached. When the number of characters reaches a predetermined number in succession, it is converted.

The above processing is repeated until all the temporarily stored characters are checked, and the processing is completed. Therefore, even if the conversion mode processing is once performed by determining the specific character, the normal mode is switched when the specific character is determined again. As a result, it becomes possible to perform normal bar code input such as numbers and capital letters of the alphabet and conversion data input such as Chinese characters by a series of bar codes.

Also in this embodiment, when the CODE-39 bar code is used, a space character can be used as a specific character for mode switching, as in the case of the above-described embodiments. Further, in each of these embodiments, a space character may be assigned to the binary number "41" and "%" may be used as the specific character for mode switching.

To this specific character, one character that is not used as a character representing a 42-digit number out of 43 characters that can be represented by a CODE-39 bar code may be assigned, but the "space character" or "%" is Normally, it is not used as the first character of the data to be input as a barcode, so by adding this at the beginning it can be indicated that it is the data to be converted such as kanji.

Alternatively, the bar code COD shown in FIG.
Binary pattern of "*" which is the start / stop code at both ends of E-39, or binarization of "a" which is the start / stop code at both ends of the bar code NW-7 shown in FIG. Since the pattern is removed by the barcode decoding unit 13 of the barcode scanner 1 shown in FIG. 1,
It is not input to the barcode processing unit 24. Therefore, the start / stop code may be used by inserting it into a portion other than both ends of the barcode as a specific character for switching modes.

The bar code used for carrying out the present invention is not limited to CODE-39, but NW-7, US.
It is also possible to use various barcodes such as S-128 and ITF. When using NW-7 and USS-128, one character of the barcode is 1 in conversion mode.
As a hexadecimal number, 4 characters (4 digits) can correspond to 1 16-bit Chinese character (shift JIS), and 2 characters (2 digits) can correspond to an 8-bit half-width code. When ITF is used, it is a 5-digit decimal number and corresponds to the Kanji code.

The bar code to be used is created by using a bar code printer, and the 4-digit hexadecimal code data to be input such as the shift JIS kanji code is stored in the personal computer 2 shown in FIG. For example COD
E-39 has a function (application software) for converting to data in 42-digit 3-digit data in characters, and if you input 4-digit hexadecimal code data from the keyboard 21, it will be converted to 42-digit 3-digit data. It may be converted so that it can be displayed on the display 22 or a barcode such as CODE-39 can be printed by a connected barcode printer.

By the way, in the embodiment described so far,
Although the barcode data processing unit 24 is provided in the data processing device 2 as shown in FIG. 1, it may be provided in the barcode scanner 1. Then, various devices such as the data processing device for inputting the data can be left as they are. Even when it is provided in the bar code scanner, the processing program by the microcomputer therein is added, and it is necessary to slightly increase the memory capacity for storing the converted data, and the hardware can be used almost as it is.

That is, the bar code decoding section 13 of the bar code scanner 1 is provided with a function corresponding to the bar code data processing section 24 shown in FIG. There is provided start / stop pattern discriminating means for discriminating whether or not there is a start or stop pattern other than both ends of the binary data.

Then, the normal mode processing means 27 decodes the binarized data from the binarizing circuit section 12 as it is, converts it into a character string and sends it out, and the conversion mode processing means 28.
When the start / stop pattern discriminating unit discriminates that there is a start or stop pattern, the binarized data that follows is data-coded and converted into a character string, and then a predetermined number of characters (for example, three characters) are collectively determined. Convert it to bit unit data and send it.

Alternatively, the start / stop pattern discriminating means excludes the start pattern and the stop pattern at the end of the binarized data from the binarization circuit unit 12 in the order of reading characters one by one. A check is made to determine whether the pattern is a start or stop pattern. The normal mode processing means 27 is initially operated, and the normal mode is set every time the start or stop pattern is determined by the start / stop pattern determination means. From the processing means 27 to the conversion mode processing means 28,
The conversion mode processing means 28 may be alternately switched to the normal mode processing means to operate.

An example of the operation of the bar code scanner in that case will be described with reference to the flowchart of FIG. When the barcode input is started, first, the optical / electrical signal converter 11 shown in FIG.
2, the left and right margins are confirmed, the barcode pattern portion is extracted, binarized, and temporarily stored. Then, the barcode decoding unit 13 performs the following processing on the barcode pattern data.

Start / stop patterns (C
In the case of ODE-39, the reading direction was confirmed by the relationship between the left and right margins and the code representing "*" shown in FIG. 6 and the code representing "a" shown in FIG. 7 in NW-7). After that, remove the start / stop patterns at both ends.

Then, the mode is set to the normal mode, the pattern data for one character is sequentially read, and it is determined whether the pattern is a start / stop pattern. As a result, start /
If it is not a stop pattern, the pattern data is decoded to decipher the character, and it is determined whether or not it is the conversion mode. If it is not the conversion mode, the normal mode processing (one character at a time) is performed.

In the case of the conversion mode, the conversion mode processing (waiting for a predetermined number of characters to be converted into data such as a Kanji code in a predetermined bit unit and transmitting the data) is performed. If the start / stop pattern is determined by determining whether it is a start / stop pattern, if the mode at that time is the normal mode, it is the conversion mode, and if it is the conversion mode, it is the normal mode.
Switch the mode.

In this way, the pattern data for each character is sequentially read and processed until the next pattern disappears, and the process ends when the next pattern disappears. By doing so, the same effect as that of the above-described embodiment described with reference to the flowchart of FIG. 4 can be obtained.

[0066]

As described above, since the bar code input device according to the present invention utilizes the existing bar code system, the hardware of the bar code printer and bar code scanner (bar code reader) currently used is used. This can be easily performed by adding specific character discrimination and data conversion software without modifying the ware at all.

Then, the bar code data and the shift JIS
Kanji code, JIS8 half-width code, control code, command, etc., as well as external characters, image data, voice data, etc. can be input, and these various data may be mixed. Therefore, it becomes possible to apply the barcode input, which is extremely versatile, easy, fast, and reliable, to a wide range of fields.

[Brief description of drawings]

FIG. 1 is a block diagram showing an internal configuration of an embodiment of the present invention shown in FIG.

FIG. 2 is an external perspective view showing the hardware configuration of the data processing system showing the embodiment of the present invention.

FIG. 3 is a flowchart showing an operation of a barcode data processing section 24 in FIG.

FIG. 4 is a flowchart showing an operation of a barcode data processing unit similar to that of FIG. 3 of another embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of a bar code scanner according to another embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an example of a CODE-39 barcode.

FIG. 7 is an explanatory diagram showing an example of a NW-7 barcode.

[Explanation of symbols]

 1 Bar Code Scanner 2 Personal Computer 3 Interface Code 4 CODE-39 Bar Code 5 Printer 11 Optical / Electrical Signal Converter 12 Binarization Circuit 13 Bar Code Decoder 14, 23, 25 Interface 20 Data Processor 21 Keyboard 22 Large Liquid Crystal Display 24 Bar Code Data Processing Unit 26 Specific Character Discriminating Means 27 Normal Mode Processing Means 28 Conversion Mode Processing Means

Claims (5)

[Claims] 1. A bar code reading means for reading a bar code, and a specific character discriminating means for discriminating whether or not a predetermined specific character is present in a character string constituting the code data read by the means. , A normal mode processing means for transmitting each character of the character string as it is, and when the specific character determining means determines that the specific character exists, collects each character of the character string following the specific character by a predetermined number. And a conversion mode processing means for converting the data into a predetermined bit unit and transmitting the data. 2. The bar code input device according to claim 1, wherein the specific character discriminating means checks each character of a character string constituting the code data read by the bar code reading means in the reading order. In addition to the means for determining whether the character is a specific character, the normal mode processing means is initially operated, and the conversion mode processing means and the conversion mode processing means are operated every time the specific character determining means determines the specific character. A bar code input device comprising means for alternately switching and operating the normal mode processing means. 3. The bar code input device according to claim 1, wherein the specific character is a space character, a%, a start character, or a stop character. Code input device. 4. A means for inputting a bar code pattern into binarized data, and a start / stop pattern discriminating means for discriminating whether or not there is a start or stop pattern other than both ends of the binarized data. A normal mode processing means for decoding the binarized data as it is, converting it into a character string and transmitting the character string; and, when the start / stop pattern judging means judges that there is the start or stop pattern, A barcode including a conversion mode processing means for data-converting the binary data following the stop pattern into a character string, and then converting the binary data into a predetermined bit unit data and transmitting the data. Input device. 5. The bar code input device according to claim 4, wherein the start / stop pattern determining means excludes a start pattern and a stop pattern at a start end of the binarized data and is a pattern for each character. As a means for discriminating whether or not it is the start or stop pattern by checking the reading order, and in the initial stage, the normal mode processing means is operated, and the start / stop pattern discrimination means makes the start or stop pattern. A bar code input device, characterized in that a means for alternately switching the conversion mode processing means and the normal mode processing means to operate each time is determined.