JPH07254038A - Paper media system - Google Patents

Abstract

PURPOSE:To provide a paper media system in which a bar code is used and an accuracy is improved at the time of restoring bar code information from a bar code. CONSTITUTION:This system restores an original image from the bar code having a first bar code in which images are encoded and a second bar code in which the condition of a reading means for accurately reading the first bar code is encoded. The system has a reading means 2 for reading the bar code, a discrimination means for discriminating whether the encoding information of the first bar code can be accurately restored by the reading means 2 or not based on the second bar code read by the reading means 2 and a restoration means for restoring the original image information from the first bar code when the discrimination means judges that the information can accurately be restored and not restoring the original image information from the first bar code when the discrimination means judges that the information can not accurately be restored.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper media system using a one-dimensional bar code or a two-dimensional bar code (hereinafter, simply referred to as a bar code), which includes bar code to bar code information (voice, document, The present invention relates to a system that improves accuracy when restoring images and the like).

[0002]

2. Description of the Related Art Text information is encoded on a recording paper (1
An apparatus for recording text information as a three-dimensional bar code) and restoring text information from encoded information as necessary is disclosed in Japanese Patent Laid-Open No. 12288/1993.
It is known from the official gazette.

[0003]

However, in the prior art, when reading a bar code recorded as encoded information, a reading device (for example,
When the resolution of the CCD or the like is low, there are problems such as erroneous recognition and the inability to accurately restore the text information from the encoded information. The present invention has been made in view of the above problems, and reads the coded information in association with recording information such as voice, document, and image as coded information (barcode) on a recording paper. A condition suitable for is recorded as encoded information, and the fact that the encoded information can be restored when the above condition is read, and the encoded information cannot be restored when the above condition is read. It is intended to provide a system for recognizing or displaying the effect and improving the reliability when the encoded information obtained by encoding voice, document, image, etc. is restored to the original information.

[0004]

In order to achieve the above object, the invention according to claim 1 is to accurately read the first bar code in which a voice, a document or an image is coded. A paper media system for restoring an original voice, a document or an image from a bar code having a second bar code obtained by encoding the conditions of the bar code reading means, the reading means for reading the bar code, and the reading means. Determination means for determining whether or not the encoded information of the first barcode can be accurately restored by the reading means, based on the second barcode read by If it is determined that the original voice, document, or image information is restored from the first barcode, and if the determination unit accurately determines that it cannot be restored, the original voice, document, or image information is restored from the first barcode. Recovery It is characterized in that it has a restoring means which is not so.

[0005]

According to the first aspect of the present invention, the coded information obtained by coding the voice, the document, the image, etc. (hereinafter referred to as the first bar code)
Is recorded on recording paper as resolution coded information (hereinafter referred to as a second bar code) obtained by coding resolution information of a reading device (scanner) capable of accurately reading
When restoring the original information from the first barcode that encodes a document, an image, etc., first, the second barcode is read by the reading device, and the encoded information of the first barcode is accurately restored by the reading device. Since it is possible to recognize whether or not it is possible, there is no error in the restored voice, document, image, etc., and the reliability can be improved.

[0006]

The present invention will be described in detail below. Figure 1
FIG. 1 is a block diagram showing a basic configuration of a reproducing unit of a paper media system which is an embodiment of the present invention. The basic configuration of the reproduction unit of the paper media system is composed of an input unit 1, a barcode recognition unit 2, an information processing unit 3, a display unit 4, and an output unit 5. The input unit 1 is a reading device (CCD scanner or the like) for reading an original to which barcode information obtained by encoding voice, a document, an image, or the like is added or an original including only the barcode information. The barcode recognition unit 2 extracts a portion in which the barcode information is recorded from the document read by the input unit 1 and restores the original information such as voice, document, and image from the barcode information. The extraction of the bar code information recorded portion is performed by extracting the bar code portion based on the frequency component of the signal output from the reading device such as a CCD scanner or in the partial area where the bar code information is recorded. Various methods are applicable, such as marking in advance and extracting the barcode part based on the area designated by the marking. The information processing unit 3 controls the entire system such as displaying and outputting the restored voices, documents, images, etc., and displaying the operation of this system. Further, as will be described later, it is determined whether the resolution of the reading device of the input unit 1 is readable for the barcode to be read, and the resolution of the reading device of the input unit 1 is lower than that of the barcode. Performs necessary processing (instruction such as unreadable display) when barcode information is unreadable or inappropriate. When the information processing unit 3 determines that the barcode information is unreadable or inappropriate, the display unit 4 displays a message to the operator such as unreadable and a necessary operation procedure at that time. It is a CRT or LCD (liquid crystal display device) for displaying information such as. The output unit 5 is a recording device such as a printer, a copying machine, or a FAX for recording and reproducing the restored voice, document, image, or the like.

Next, the procedure for restoring the bar code information using the apparatus of FIG. 1 will be described based on the processing flow of FIG.

First, in step 1, the document on which the bar code information is recorded is read by the input section 1 of FIG. In this case, the manuscript on which the bar code information is recorded, as shown in FIG. 3, is composed of only the bar code information 10, or a document, an image and the bar code information 10 encoding these are recorded in a mixed manner. Etc. may be used. The original is read with a CCD scanner.

In step 2, bar code information is recognized and extracted from the read original data. This is done using the barcode recognition unit 2 of FIG. Here, the barcode information, which is one of the features of the present invention, will be described with reference to FIG. Barcode information 10 of the present invention
Is coded information (first barcode) that codes voice, document, image, etc., and resolution coded information (first coded) that encodes resolution information of a CCD scanner that can read the first barcode accurately. 2 bar code). s
The barcode information extracted in step 2 is temporarily stored and held as a first barcode and a second barcode in a memory (not shown) or the like.

In step 3, the second bar code among the bar code information stored in the memory is first read. Here, the second barcode is a barcode printed with several types of patterns, as shown in FIG.
Here, there are three types of pattern codes, and the conditions of the reading device necessary for reading the first barcode are coded. If the reading device is a CCD scanner, the resolution necessary for reading the first barcode is recorded as the second barcode. For example, the resolution required to read the first barcode is 300 dpi.
, The second bar code has a reading resolution of "30
"0" and the resolution of the second barcode itself are recorded and configured. The 13th part has a reading resolution of 200 dpi or more, and the information of "300, 200" is coded. The portion of 14 is 300 dpi or more, and "30
The information of "0,300" is coded. The 15th part is 400 dpi or more, and the information of "300,400" is coded. The first barcode is recorded in a barcode pattern that can be read by a CCD scanner having the resolution indicated by the second barcode.

At step 4, it is judged whether the resolution of the CCD scanner of the input section 1 is readable based on the result of reading the second bar code. The second bar code in FIG.
When reading with a 00 dpi CCD scanner, 1 in FIG.
The second barcode of 3 and 14 is readable,
Information of "300, 200" and "300, 300" can be obtained, respectively. On the other hand, with respect to 15, it is impossible to accurately read the second barcode recorded at 400 dpi with a CCD scanner having a resolution of 300 dpi.

At step 5, it is judged from the information obtained at step 4 whether or not the first barcode can be accurately restored by the CCD scanner of this system. That is, when the resolution of the CCD scanner, which is the reading device of the present system, is more accurate than the reading resolution recorded in the second barcode, the first barcode can be accurately read and restored. Is judged.

When it is determined in step 6 that the first bar code cannot be accurately read and restored in step 5 (in the case of NO), the CRT or LCD is controlled by the control of the information processing section 3 in FIG. On the display unit 4 such as the above, a message to the operator such as unreadable information is displayed and information such as an operation procedure necessary at that time is displayed. Further, under the control of the information processing unit 3 in FIG. 1, the first barcode itself may be copied or recorded without restoring the first barcode.

In step 7, if it is determined in step 5 that the first bar code can be accurately read and restored (in the case of YES), the first bar code of the image data stored in the memory in step 2 is stored. The image data of the code is read out, and the original information such as voice, document and image is restored from the barcode information by the barcode recognition unit 2 in FIG.

In step 8, based on the information of the voice, the document, the image, etc. restored in step 7, in response to the control of the information processing section 3, it is recorded as a character or image which can be displayed if it is displayed on a CRT or LCD. When recording on paper or the like, a character or an image is formed.

In step 9, the character or image formed in step 8 is reconstructed and recorded as voice, document, image, etc. by a recording device such as a printer, a copying machine, or a FAX which is the output unit 5 in FIG.

[0017]

As described above, according to the first aspect of the invention, the coded information (first bar code) obtained by coding the voice, the document, the image or the like can be read accurately. The resolution information of the device (scanner) is recorded as resolution encoding information (second barcode) on a recording paper, and the original information is recorded from the first barcode that encodes voice, document, image and the like. At the time of restoration, first, the second barcode is read by the reading device, and it is possible to recognize whether or not the encoded information of the first barcode can be accurately restored by the reading device. Therefore, the restored voice, document, image, etc. There is no error and the reliability can be improved.

[0018]

[Brief description of drawings]

FIG. 1 is a block diagram of a paper media system playback unit according to the present invention.

FIG. 2 is a processing flowchart for restoring barcode information.

FIG. 3 is a document on which barcode information is recorded.

FIG. 4 is an example of a barcode consisting of a first barcode and a second barcode.

FIG. 5 is an example of a second barcode.

[Explanation of symbols]

1. Input section 2. Bar code recognition unit 3. Information processing unit 4. Display unit 5. Output unit 10. Bar code part 11. First barcode portion 12. Second barcode portion 13.14.15. Second barcode resolution pattern

Claims (1)

[Claims] 1. A bar code having a first bar code encoding a voice, a document or an image and a second bar code encoding a condition of a reading means capable of reading the first bar code correctly. A paper media system for restoring the original voice, document or image, wherein the first barcode is encoded based on the reading means for reading the barcode and the second barcode read by the reading means. A determination unit that determines whether the information can be accurately restored by the reading unit, and if the determination unit determines that the information can be accurately restored, restores the original voice, document, or image information from the first barcode. A paper medium having a restoring means for not restoring the original voice, document or image information from the first bar code when the determining means accurately determines that the restoration is impossible. A system.