KR0135728Y1 - Document reading apparatus - Google Patents
Document reading apparatus Download PDFInfo
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- KR0135728Y1 KR0135728Y1 KR2019930003494U KR930003494U KR0135728Y1 KR 0135728 Y1 KR0135728 Y1 KR 0135728Y1 KR 2019930003494 U KR2019930003494 U KR 2019930003494U KR 930003494 U KR930003494 U KR 930003494U KR 0135728 Y1 KR0135728 Y1 KR 0135728Y1
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- document
- reading
- white roller
- white
- original
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- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 238000003705 background correction Methods 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00795—Reading arrangements
- H04N1/00798—Circuits or arrangements for the control thereof, e.g. using a programmed control device or according to a measured quantity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/00602—Feed rollers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/0061—Feed belts
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
본 고안은 원고독취장치에 관한 기술이다.The present invention is a technique related to the document reading apparatus.
종래에는 밀착형이미지센서의 상부에 화이트롤러가 선접촉되게 설치되어 화이트롤러의 표면은 곡면으로서 원고 독취면과 화이트롤러의 면이 서로 평행하게 선접촉되지 않을 경우 광센서에서 셰이딩보정을 위한 기준데이타를 조회하는 광독취구조와 원고에 대한 광독취 구조가 서로 달라 셰이딩 보정의 완벽을 기할 수 없어 보정된 화상데이타가 균일하지 않게 되는 문제점이 있어, 이를 해결하기 위하여 본고안은 원고 독취면 상부에 면접촉되게 화이트롤러(2)를 설치하여 원고(6)가 피딩되기 전에 이미지센서(1)에 의해 접촉면의 화이트롤러(2)에 기준데이타를 조회하며 이 독취구조가 원고독취시의 독취구조와 유사하도록 만들어 효율적인 셰이딩 보저을 할 수 있도록된 것이다.Conventionally, the white roller is installed in linear contact on the top of the close-up image sensor, and the surface of the white roller is a curved surface, and the reference data for shading correction in the optical sensor is not provided when the original reading surface and the surface of the white roller are not parallel to each other. There is a problem that the optical reading structure for searching and the optical reading structure for the original are different from each other, so that the corrected shading correction cannot be achieved, so that the corrected image data is not uniform. By installing the white roller 2 in contact with each other, the reference data is inquired by the image sensor 1 to the white roller 2 on the contact surface before the document 6 is fed. By making it similar, you can do efficient shading.
Description
제1도는 종래의 원고독취부의 구성도.1 is a block diagram of a conventional document reading portion.
제2도는 본 고안의 원고독취부의 구성도.2 is a block diagram of a document reading portion of the present invention.
제3도는 다른 본 고안의 원고독취부의 구성도.3 is a block diagram of a manuscript reading section of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 밀착형이미지센서 2 : 화이트롤러1: Close image sensor 2: White roller
3 : 발광체 4 : 셀포커스렌즈3: light-emitting body 4: cell focus lens
5 : 광센서 6 : 원고5: light sensor 6: original
7 : 화이트벨트 8,9 : 벨트구동축7: white belt 8,9: belt drive shaft
본 고안은 원고독취장치에 관한것으로서, 특히 스캐너 혹은 팩시밀리등에 설치 된 원고독취부의 화이트 로울러에 대한 효율적인 세이딩 보정효과를 얻기 위해 개량한 것이다.The present invention relates to a document reading device, and is particularly improved to obtain an effective shading correction effect on a white roller of a document reading part installed in a scanner or a facsimile.
종래에는 제1도에 도시한 바와 같이 스캐너 혹은 팩시밀리에 원고독취장치로서 발광체(13)와 셀포커스렌즈(14)와 광센서(15)가 설치된 밀착형이미지센서(11) 상부에 원고(16)를 이송시키는 화이트롤러(12)를 설치한 것이다.Conventionally, as shown in FIG. 1, the document 16 is mounted on the contact type image sensor 11 provided with the light emitter 13, the cell focus lens 14, and the optical sensor 15 as a document reading device in a scanner or facsimile. It is to install a white roller (12) for conveying.
상기 밀착형이미지센서(11)의 상부에 설치된 화이트롤러(12)는 원고(16)에 대한 데이타의 독취전에 기준 데이타 조회를 하는 화이트로서의 역할을 하고, 마찰력을 이용하여 원고(16)를 피딩이송시키며 원고(16)의 데이타를 독취하기 위한 것으로서, 원고(16)가 피딩되기 전에 밀착형이미지센서(11)의 발광체(13)에서 빛을 발하여 기준 데이타 조회를 위해 화이트롤러(12)로 부터 반사된 광을 셀포커스렌즈(14)를 통하여 광센서(15)에 의해 독취하여 데이타를 출력으로 내보내어 이 데이타를 화상처리회로에 저장되어 원고(16)에 대한 데이타 독취시 광센서(15)의 불균일성을 보정하는 데이타로서 사용된다.The white roller 12 installed on the top of the close-up image sensor 11 serves as a white to search the reference data before reading the data of the document 16, and feeds the document 16 using frictional force. In order to read the data of the document 16, the light emitted from the light emitting element 13 of the close-type image sensor 11 before the document 16 is fed and reflected from the white roller 12 for reference data inquiry. The read light is read by the optical sensor 15 through the cell focus lens 14, and the data is output to the output, and the data is stored in an image processing circuit to read the data of the document 16. It is used as data to correct for nonuniformity.
이와 같은 원고독취장치는 밀착형이미지센서(11) 상부면에 화이트롤러(12)가 선접촉되게 설치되어 발광체(13)에 의해 선접촉된 부위의 화이트롤러(12)를 원고(16)가 피딩이송되기 전에 기준 데이타를 조회하여 원고(16)가 피딩시 원고(16)에 대한 데이타 독취시 원화상데이타와 균일한 데이타를 얻을 수 있도록 셰이딩(shading) 보정데이타를 화상처리회로장치에 입력시켜 원고(16)를 독취시 보정을 통하여 균일한 화상데이타를 얻어 전송할 수 있도록 하는 것이다.Such a document reading device is provided such that the white roller 12 is in line contact with the upper surface of the close-up image sensor 11 so that the document 16 is placed on the white roller 12 at the line contacted by the light emitter 13. By referencing the reference data before feeding, the shading correction data is input to the image processing circuit so that the original 16 can obtain the original image data and the uniform data when reading the data on the original 16 when feeding. The document 16 is read-corrected so that uniform image data can be obtained and transmitted.
그러나 이러한 종래의 원고독취장치는 밀착형이미지센서 상부에 화이트롤러가 선접촉되게 설치되며 화이트롤러의 표면은 곡면으로서 밀착형이미지센서와 화이트롤러 표면이 서로 평행하여 선접촉되지 않을 때 각 위치마다 원고독취시와 같은 기하학적 구조의 광테이타를 취득할 수 없으며, 발광체에 의한 광센서에서 기준데이타를 조회하는 화이트롤러의 광독취구조와 원고에 대한 광독위구조가 서로 달라 원고독취시와 같은 광학적 보정데이타를 얻을 수 없어 독취된 원고의 보정시 화상데이타가 균일하지 않게 되는 문제점이 있다.However, such a conventional document reading device has a white roller installed in line contact with the upper part of the contact type image sensor, and the surface of the white roller is curved, so that each position of the contact type image sensor and the white roller does not come in line contact with each other in parallel. The optical data of the same geometrical structure as the original document cannot be obtained, and the optical reading structure of the white roller which inquires the reference data from the light sensor by the light emitting body and the optical reading structure of the original differ from each other. There is a problem that the image data is not uniform when the read original is corrected because optical correction data cannot be obtained.
상기와 같은 문제점을 해소하기 위하여 안출된 것으로서,In order to solve the above problems,
본 고안의 목적은 원고독취장치에서 화이트롤러에 대한 기준데이타 조회시 효율적인 셰인딩 보정 효과를 얻을 수 있도록 하는데 있다.The purpose of the present invention is to obtain an efficient shading correction effect when searching the reference data for the white roller in the document reader.
상기와 같은 목적을 달성하기 위한 실시예를 첨부되 도면에 의거 상세히 설명하면 다음과 같다.Exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제2도를 참조하여 본 고안의 구성을 설명하면,Referring to the configuration of the present invention with reference to Figure 2,
팩시밀리의 원고독취장치인 밀착형이미지센서(1)상부에 압축율이 큰 탄성화이트롤러(2)를 면접촉되게 설치하여 원고(6)가 피딩되기 전에 기준데이타를 조회하여 이 독취구조가 원고(6)독취시의 구조와 유사하도록 하여 효율적인 세이딩보정을 행할 수 있도록한 것이다.A high-compression elastic white roller (2) is installed on the contact type image sensor (1), which is a facsimile document reading device, in contact with the surface, and the reference data is inquired before the document (6) is fed. 6) It is similar to the structure at the time of reading so that effective shading correction can be performed.
상기 밀착형이미지센서(11)내의 발광체(3)빛을 발하여 탄성화이트롤러(2)와 면접촉된 부위로부터 반사된 광을 셀포커스렌즈(4)를 통해 광센서(5)에 의해 독취하여 데이타를 출력으로 내보내어 이 데이타를 화상처리회로에 저장하고 원고(6)에 대한 데이타를 독취시 광센서(5)의 불균일성을 보정하는 데이타로서 사용하는 것이다.Light emitted from the light emitting body 3 in the close-type image sensor 11 and reflected from the surface contacting surface with the elastic white roller 2 is read by the optical sensor 5 through the cell focus lens 4 and the data is read. The data is stored in the image processing circuit and used as data for correcting the nonuniformity of the optical sensor 5 during reading.
상기와 같이 원고독취장치인 밀착형이미지센서(1)의 상부에 압축율이 큰 탄성 화이트롤러(2)를 면접촉되게 설치하여 사용하면 셰이딩 보정을 위한 기준 화이트 데이타를 독취시 탄성화이트롤러(2)의 압착에 의하여 밀착형이미지센서(1)의 원고독취 표면부와 탄성화이트롤러(2)의 사이에 큰 면적으로 평행한 부위가 밀착되게 존재하게 되어 원고(6)의 독취시와 유사한 광학적 구조를 가지게 된다. 따라서 셰이딩 보정의 효과를 크게 증진시킬 수 있는 것이다.When the elastic white roller 2 having a high compression ratio is installed to be in surface contact with the contact type image sensor 1, which is a document reading device, as described above, the elastic white roller is used to read the reference white data for shading correction. By the compression of), a large parallel area exists between the surface of the original reading of the contact type image sensor 1 and the elastic white roller 2, and thus the optical similar to that of the reading of the original 6 It has a structure. Therefore, the effect of shading correction can be greatly enhanced.
상기와 같은 상태에서 원고(6)가 피딩시원고(6)에 대한 데이타 독취후 원고 화상데이타를 균일하게 보정한 데이타를 얻어 전송할 수 있는 것이다.In the above state, the document 6 can acquire and transmit data of uniformly correcting the original image data after reading the data of the document 6 at the time of feeding.
다른 실시예로서 제3도을 참조하여 설명하면,Referring to FIG. 3 as another embodiment,
밀착형이미지센서(1)의 상부에 화이트벨트(7)의 표면이밀착되도록 원고(6)의 이송방향 전,후에 벨트구동추(8,9)을 설치하여 상기 벨트구동축(8,9)에 화이트벨트(7)를 연결하여 회전되게 설치된 것이다.The belt driving weights 8 and 9 are provided before and after the conveying direction of the document 6 so that the surface of the white belt 7 is in close contact with the upper part of the close-up image sensor 1 and the belt driving shafts 8 and 9 are provided. The white belt (7) is connected to rotate.
상기 밀착형이미지센서(1)의 상부에 밀착되게 설치된 화이트벨트(7)는 원고(6)에 대한 데이타를 독취전에 기준데이타를 조회하는 화이트로서의 역할을 하고 마찰력을 이용하여 원고(6)를 피딩 이송시키는 것으로, 밀착형이미지센서(1)내의 발광체(3)에서 빛을 발하여 밀착형이미지센서(1)와 밀착된 화이트벨트(7)의 접촉된 면으로부터 반사된 광을 셀포커스렌즈(4)를 통해 광센서(5)에 의해 독취하여 화이트벨트(7)에 의해 조회된 기준 데이타를 출력으로 내보내어 원고(6)를 독취시 광센서(5)의 불균일성을 보정하는 데이타로서 사용할 수 있도록한 것이다.The white belt 7 installed in close contact with the upper portion of the close-type image sensor 1 serves as a white to inquire reference data before reading the data on the original 6 and feeds the original 6 using frictional force. By transferring the light from the light emitting body 3 in the close-up image sensor 1, the light reflected from the contact surface of the close-up image sensor 1 and the white belt 7 in close contact with the cell focus lens 4 The reference data retrieved by the optical sensor 5 and read by the white belt 7 are output to the output so that the original 6 can be used as data for correcting the nonuniformity of the optical sensor 5 upon reading. will be.
상기와 같이 원고독취장치인 밀착형이미지센서(1)의 상부에 벨트구동축(8,9)에 의해 회전되는 화이트벨트(7)를 밀착되게 설치하여 사용하면 최초에 기준데이타를 독취시 화이트벨트(7)와 밀착형이미지센서(1)의 원고독취 표면부와 큰 면적으로 평행한 부위가 면으로 밀착되게 존재하므로 기준데이타를 독취시 원고(6) 독취시와 유사한 광학적 구조를 가지게 된다.When the white belt 7 rotated by the belt drive shafts 8 and 9 is installed on the upper part of the contact type image sensor 1, which is a document reading device, as described above, the white belt is read when the reference data is first read. (7) and a portion parallel to the original reading surface of the contact type image sensor 1 are in close contact with the surface, so that the reference data has an optical structure similar to that of reading the original (6).
따라서 셰이딩 보정의 효율을 크게 증진시킬 수 있게 된다.Therefore, the efficiency of shading correction can be greatly improved.
상기와 같은 본 고안에 의하면 밀착형이미지센서 상부에 화이트롤러가 면접촉되게 설치함으로서 화이트롤러에 의한 기준데이타를 원고의 독취시의 유사한 광학적 구조로 부터 데이타를 얻을 수 있어 원고독취시 원고화상데이타의 셰이딩 보정효율을 크게 증진시킬 수 있어, 특히 중간조 영상에 대한 처리시 영상에서의 부자연스러운 주주사 방향의 줄이 나타남을 크게 개선하여 고화질을 중간조 영상을 취득하여 전송할 수 있는 잇점이 있다.According to the present invention as described above, the white roller is placed in surface contact on the top of the close-up image sensor, so that the reference data by the white roller can be obtained from a similar optical structure when the original is read. In addition, the shading correction efficiency of the image can be greatly improved, and in particular, the processing of the halftone image greatly improves the appearance of unnatural main scanning directions in the image, thereby obtaining and transmitting the high quality halftone image.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019930003494U KR0135728Y1 (en) | 1993-03-11 | 1993-03-11 | Document reading apparatus |
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KR2019930003494U KR0135728Y1 (en) | 1993-03-11 | 1993-03-11 | Document reading apparatus |
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KR940023715U KR940023715U (en) | 1994-10-22 |
KR0135728Y1 true KR0135728Y1 (en) | 1999-05-01 |
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KR2019930003494U KR0135728Y1 (en) | 1993-03-11 | 1993-03-11 | Document reading apparatus |
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1993
- 1993-03-11 KR KR2019930003494U patent/KR0135728Y1/en not_active IP Right Cessation
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KR940023715U (en) | 1994-10-22 |
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