JP2972801B2 - Optical reader - Google Patents
Optical readerInfo
- Publication number
- JP2972801B2 JP2972801B2 JP3224732A JP22473291A JP2972801B2 JP 2972801 B2 JP2972801 B2 JP 2972801B2 JP 3224732 A JP3224732 A JP 3224732A JP 22473291 A JP22473291 A JP 22473291A JP 2972801 B2 JP2972801 B2 JP 2972801B2
- Authority
- JP
- Japan
- Prior art keywords
- read
- reading
- head
- medium
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば通帳の文字や
書類のバーコードを読取るような光学式読取り装置に関
し、さらに詳しくは媒体汚れ等による読取り不良を確実
に低減することができる光学式読取り装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical reading apparatus for reading, for example, the characters of a passbook or a bar code of a document, and more particularly, to an optical reading apparatus capable of reliably reducing poor reading due to contamination of a medium. Related to the device.
【０００２】[0002]
【従来の技術】一般に、この種の光学式読取り装置は、
媒体搬送ラインの読取り対応位置に光学式の読取りヘッ
ドを固定設置して、ここに導かれた媒体のＯＣＲ（光学
式文字読取り装置）用の文字やバーコード等の読取りデ
ータを読取っている（例えば先行出願の特願昭６３ー１
０４４５号参照）。2. Description of the Related Art Generally, this type of optical reader is
An optical read head is fixedly installed at a position corresponding to the read of the medium transport line, and reads the read data such as characters and bar codes for the OCR (optical character reader) of the medium guided there (for example, Japanese Patent Application No. 63-1 for prior application
No. 0445).
【０００３】[0003]
【発明が解決しようとする課題】しかし、媒体表面に記
録されたＯＣＲ用の文字やバーコードに、印刷ズレやイ
ンクの乱れ、また汚れが付着したり傷が付いた場合は、
正常に光電変換されず、これが読取り不良の原因となっ
ていた。However, if OCR characters or barcodes recorded on the medium surface are misaligned in printing, ink is disturbed, or dirt adheres or is scratched,
Photoelectric conversion was not performed normally, and this was the cause of poor reading.
【０００４】そこでこの発明は、光学式の読取りヘッド
で読取り不良のとき、その読取り位置を若干変位させて
再読取りすることで、確実に読取れるようにした光学式
読取り装置の提供を目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide an optical reading apparatus which can reliably read an image when a reading error occurs with an optical reading head by slightly displacing the reading position and re-reading. .
【０００５】[0005]
【課題を解決するための手段】この発明は、光学式の読
取りヘッドで媒体の読取りデータを読取る光学式読取り
装置であって、前記読取りヘッドを予め設定された読取
り基準位置より若干変位させた位置に移動させるヘッド
変位手段を設け、前記読取りヘッドが読取り基準位置で
読取り不良のとき、前記ヘッド変位手段を駆動して該読
取りヘッドを変位させた後、再読取りする制御手段を設
けたことを特徴とする。SUMMARY OF THE INVENTION The present invention relates to an optical reading apparatus for reading data from a medium with an optical reading head, wherein the reading head is slightly displaced from a preset reading reference position. And a control means for re-reading after the read head is displaced by driving the head displacement means when the read head is defective at the read reference position. And
【０００６】[0006]
【作用】この発明によれば、光学式の読取りヘッドが読
取り基準位置で読取れなかったとき、制御手段がヘッド
変位手段を駆動して、該読取りヘッドを予め設定された
読取り基準位置より若干変位させて、読取り不良位置を
回避した状態で再度読取り動作させる。According to the present invention, when the optical read head cannot read at the read reference position, the control means drives the head displacement means to slightly displace the read head from the preset read reference position. Then, the reading operation is performed again while avoiding the reading defect position.
【０００７】[0007]
【発明の効果】このように、読取り基準位置だけでな
く、その近傍位置を読取れるようにして読取りヘッドの
読取り対応域を広く設けてあるため、仮に読取り基準位
置で読取れなくても、その近傍位置を読取って読取りデ
ータを確実に読取ることができ、特に、媒体の読取りデ
ータに印刷ズレやインクの乱れ、また汚れが付着したり
傷が付いていても、その部分を回避して読取ることがで
きる。それゆえ、読取り不良の発生率を低減することが
でき、また読取り装置のダウン回数の削減および信頼性
が向上する。As described above, not only the reading reference position but also the vicinity thereof can be read, so that the read corresponding area of the reading head is widened. It can read the read data reliably by reading the nearby position.Especially, even if the read data of the medium is misaligned with printing, ink is disturbed, or stained or scratched, avoid reading the data. Can be. Therefore, the rate of occurrence of read defects can be reduced, and the number of times of downtime of the reader is reduced and the reliability is improved.
【０００８】[0008]
【実施例】この発明の一実施例を以下図面に基づいて詳
述する。図面は光学式読取り装置を示し、この光学式読
取り装置は図１および図２に示すように、通帳等の媒体
１１を挟持搬送する媒体搬送路１２と、この媒体搬送路
１２上に対設した光学式の読取りヘッド１３と、この読
取りヘッド１３を移動させるヘッド駆動装置１４とから
構成される。媒体表面の特定位置には、ＯＣＲ用の文字
あるいはバーコード等の光学式の読取りデータ１５を記
録しており、これが搬送時に読取りヘッド１３と対応し
て読取られる。また、媒体１１を定速搬送する媒体搬送
路１２は、媒体１１を上下より挟持する上下ベルト１
６，１７を、媒体搬送幅に対応させて左右一対に対設
し、これらベルト１６，１７…を搬送モータＭ1 により
可逆回転駆動して、ここに導かれた媒体１１を進退自在
に搬送する。また、媒体１１と対応してデータを読取る
読取りヘッド１３は、媒体搬送路１２上に光学読取り許
容して対設され、ここに導かれた媒体１１が通過する毎
に、その読取りデータ１５を光学的に読取る。この場
合、読取りヘッド１３をヘッド駆動装置１４により搬送
幅方向に移動許容させて、この読取りヘッド１３の読取
り対応域を広くとって、該ヘッド１３の読取り能力を高
めている。このヘッド駆動装置１４は、媒体搬送路１２
の搬送幅方向に架設したヘッド駆動軸１８に、読取りヘ
ッド１３を進退許容して装着し、ヘッド駆動装置１４の
図示しないヘッド駆動モータを駆動することによりヘッ
ド駆動軸１８を介して読取りヘッド１３を進退移動させ
る。通常は、読取りデータ１５の中心搬送ラインとなる
読取り基準位置１９と対応する定位置に読取りヘッド１
３を位置決めし、読取り不良が発生した場合に、この読
取りヘッド１３を読取り基準位置１９より僅かに移動さ
せて再読取りさせる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawing shows an optical reader, and as shown in FIGS. 1 and 2, the optical reader is provided with a medium transport path 12 for pinching and transporting a medium 11 such as a passbook, and opposed to the medium transport path 12. It comprises an optical read head 13 and a head drive device 14 for moving the read head 13. Optical reading data 15 such as OCR characters or bar codes is recorded at a specific position on the surface of the medium, and is read in correspondence with the reading head 13 during transport. The medium transport path 12 for transporting the medium 11 at a constant speed includes an upper and lower belt 1 for holding the medium 11 from above and below.
The belts 16, 17,... Are reversibly driven by a transport motor M1 to transport the medium 11 guided therein so as to advance and retreat. A read head 13 for reading data corresponding to the medium 11 is provided on the medium transport path 12 so as to allow optical reading, and reads the read data 15 optically each time the medium 11 guided there passes. And read. In this case, the read head 13 is allowed to move in the transport width direction by the head driving device 14, so that the read corresponding area of the read head 13 is widened and the read performance of the head 13 is enhanced. The head driving device 14 is configured to
The read head 13 is mounted on the head drive shaft 18 erected in the transport width direction so as to advance and retreat, and the read head 13 is driven via the head drive shaft 18 by driving a head drive motor (not shown) of the head drive device 14. Move forward and backward. Normally, the read head 1 is located at a fixed position corresponding to a read reference position 19 which is a central transport line of the read data 15.
When the reading error occurs, the reading head 13 is slightly moved from the reading reference position 19 to read again.
【０００９】図３は光学式読取り装置の制御回路ブロッ
ク図を示し、ＣＰＵ３１はＲＯＭ３２に格納されたプロ
グラムに沿って各回路装置を制御し、その制御データを
読出し可能にＲＡＭ３３で記憶する。媒体検知センサＳ
は、媒体搬送路１２に沿って配設され、ここに導かれた
媒体１１の搬送状況を検知する。ヘッド駆動モータＭ2
は、ヘッド駆動装置１４に装備され、ＣＰＵ３１の制御
信号に基づいて回転駆動し、これに基づいて読取りヘッ
ド１３の読取り位置を搬送幅方向に若干変位させた再読
取り用の変位位置に切換える。FIG. 3 is a block diagram showing a control circuit of the optical reader. The CPU 31 controls each circuit device in accordance with a program stored in a ROM 32 and stores the control data in a RAM 33 in a readable manner. Medium detection sensor S
Is disposed along the medium transport path 12 and detects the transport status of the medium 11 guided there. Head drive motor M2
Is mounted on the head driving device 14 and is driven to rotate based on a control signal from the CPU 31. Based on the rotation, the reading position of the reading head 13 is switched to a re-reading position slightly displaced in the transport width direction.
【００１０】次に、光学式読取り装置の読取り動作を次
に説明する。今、媒体１１が媒体搬送路１２に導かれ
て、読取りヘッド１３の位置を通過する時、この媒体１
１の表面に記録された読取りデータ１５が読取りヘッド
１３で光学的に読取られる。この場合、図４に示すよう
に、媒体１１に記録された読取りデータとしての例えば
バーコード４１と対応した時、このバーコード４１の読
取り基準位置１９に仮に空白部分のボイド４２が存在し
て読取れなかったときは、ＣＰＵ３１がヘッド駆動装置
１４を駆動して、該読取りヘッド１３を予め設定された
読取り基準位置１９より若干変位させて、この読取り不
良位置を回避した第１変位位置４３にて再び読取り動作
させる。このとき、読取り不良位置を回避したにも拘ら
ず、その回避位置のバーコード４１に黒点等の汚れたス
ポット４４が形成されて読取れなかったときは、再びＣ
ＰＵ３１がヘッド駆動装置１４を駆動して、読取りヘッ
ド１３を続いて第２変位位置４５に変位させて再度読取
り動作させ、確実に読取れるまで読取りヘッド１３を変
位動作させて読取り動作させる。Next, the reading operation of the optical reader will be described. Now, when the medium 11 is guided to the medium transport path 12 and passes through the position of the read head 13, the medium 1
The read data 15 recorded on the surface of the optical disk 1 is optically read by the read head 13. In this case, as shown in FIG. 4, when the bar code 41 corresponds to, for example, a bar code 41 as the read data recorded on the medium 11, a blank portion 42 temporarily exists at the read reference position 19 of the bar code 41 and the data is read. If not, the CPU 31 drives the head driving device 14 to slightly displace the reading head 13 from the preset reading reference position 19, so that the reading head 13 is moved to the first displacement position 43 where the defective reading position is avoided. The reading operation is performed again. At this time, when a spot 44 such as a black spot is formed on the barcode 41 at the avoidance position and the image cannot be read despite the avoidance of the defective reading position, the C is again detected.
The PU 31 drives the head driving device 14 to subsequently displace the read head 13 to the second displacement position 45 to perform the read operation again, and perform the read operation by displacing the read head 13 until the reading is reliably performed.
【００１１】また、図５に示すように、読取りデータに
ＯＣＲ用の文字５１を用いた場合であっても、読取りヘ
ッドが印刷ズレにより読取り基準位置１９で読取れなか
った時は、その基準位置近傍の第１変位位置５２で読取
り対応し、この変位位置５２で未だ読取り不良の場合は
第２変位位置５３に変位させ、読取れるまで繰返し読取
り不良位置を回避して再び読取り動作させる。Also, as shown in FIG. 5, even when the OCR characters 51 are used for the read data, if the read head cannot be read at the read reference position 19 due to printing displacement, the reference position is not used. Reading is performed at the first displacement position 52 in the vicinity, and if a reading failure still occurs at this displacement position 52, the reading operation is repeated to the second displacement position 53, and the reading operation is repeated again while avoiding the reading failure position until reading is possible.
【００１２】上述のように、読取りデータの基準位置だ
けでなく、その近傍位置を読取れるようにして読取りヘ
ッドの読取り対応域を広く設けてあるため、仮に読取り
基準位置で読取れなくても、その近傍位置を読取って読
取りデータを確実に読取ることができ、特に、媒体の読
取りデータに印刷ズレやインクの乱れ、また汚れが付着
したり傷が付いていても、その部分を回避して読取るこ
とができる。それゆえ、読取り不良の発生率を低減する
ことができ、また読取り装置のダウン回数の削減および
信頼性が向上する。As described above, not only the reference position of the read data but also a position in the vicinity thereof can be read, so that the read corresponding area of the read head is widened. The read data can be read reliably by reading the position in the vicinity, and even if the read data of the medium is misaligned with printing, ink is disturbed, or stains are attached or scratched, the data is read while avoiding the portion. be able to. Therefore, the rate of occurrence of read defects can be reduced, and the number of times of downtime of the reader is reduced and the reliability is improved.
【００１３】この発明と、上述の一実施例の構成との対
応において、この発明のヘッド変位手段は、実施例のヘ
ッド駆動装置１４に対応し、以下同様に、制御手段は、
ＣＰＵ３１に対応するも、この発明は上述の一実施例の
構成のみに限定されるものではない。In the correspondence between the present invention and the structure of the above-described embodiment, the head displacement means of the present invention corresponds to the head driving device 14 of the embodiment.
Although corresponding to the CPU 31, the present invention is not limited to only the configuration of the above-described embodiment.
【図１】この発明の光学式読取り装置の要部側面図。FIG. 1 is a side view of a main part of an optical reader according to the present invention.
【図２】この発明の光学式読取り装置の要部平面図。FIG. 2 is a plan view of a main part of the optical reader according to the present invention.
【図３】この発明の光学式読取り装置の制御回路ブロッ
ク図。FIG. 3 is a control circuit block diagram of the optical reader according to the present invention.
【図４】この発明のバーコードの読取り状態を示す説明
図。FIG. 4 is an explanatory diagram showing a bar code reading state of the present invention.
【図５】この発明の文字の読取り状態を示す説明図。FIG. 5 is an explanatory diagram showing a character reading state according to the present invention.
１１…媒 体 １３…読取りヘッド １４…ヘッド駆動装置 １５…読取りデータ １９…読取り基準位置 ３１…ＣＰＵ ４３，４５，５２，５３…変位位置 DESCRIPTION OF SYMBOLS 11 ... Medium 13 ... Read head 14 ... Head drive device 15 ... Read data 19 ... Read reference position 31 ... CPU 43, 45, 52, 53 ... Displacement position
Claims (1)
タを読取る光学式読取り装置であって、前記読取りヘッ
ドを予め設定された読取り基準位置より若干変位させた
位置に移動させるヘッド変位手段を設け、前記読取りヘ
ッドが読取り基準位置で読取り不良のとき、前記ヘッド
変位手段を駆動して該読取りヘッドを変位させた後、再
読取りする制御手段を設けた光学式読取り装置。1. An optical reading device for reading data read from a medium by an optical reading head, comprising head displacement means for moving the reading head to a position slightly displaced from a preset reading reference position. An optical reading device provided with control means for driving the head displacement means to displace the read head when the read head is defective at the read reference position and for re-reading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3224732A JP2972801B2 (en) | 1991-08-08 | 1991-08-08 | Optical reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3224732A JP2972801B2 (en) | 1991-08-08 | 1991-08-08 | Optical reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0546797A JPH0546797A (en) | 1993-02-26 |
| JP2972801B2 true JP2972801B2 (en) | 1999-11-08 |
Family
ID=16818378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3224732A Expired - Fee Related JP2972801B2 (en) | 1991-08-08 | 1991-08-08 | Optical reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2972801B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708299B1 (en) * | 1999-11-22 | 2004-03-16 | Thomson Licensing S.A. | BCA data replay |
| JP3837278B2 (en) | 2000-08-10 | 2006-10-25 | 株式会社神戸製鋼所 | Compressor operation method |
| US7606408B2 (en) | 2004-06-21 | 2009-10-20 | Seiko Epson Corporation | Magnetic ink character reading method and program |
-
1991
- 1991-08-08 JP JP3224732A patent/JP2972801B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0546797A (en) | 1993-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10500750B2 (en) | Cutting apparatus | |
| JP2972801B2 (en) | Optical reader | |
| JP2946836B2 (en) | Media mark reading method | |
| US4991983A (en) | MICR encoder | |
| JPH07119154B2 (en) | Page change method for passbooks | |
| JPH01173271A (en) | Mark reading system | |
| JP5564786B2 (en) | Magnetic media processing device | |
| JP2796640B2 (en) | Barcode reader | |
| JP2694376B2 (en) | Impact printer | |
| JP2001191603A (en) | Defective print detector for printer | |
| JP2575154B2 (en) | Scanning device origin detection method | |
| JP2838040B2 (en) | Media processing device | |
| JP3323148B2 (en) | Passbook printer | |
| JPH0589618A (en) | Bankbook handling device | |
| JP3544552B2 (en) | Information recording medium reader | |
| JP2875410B2 (en) | Printer | |
| JP2578920B2 (en) | Printer print positioning mechanism | |
| JPH10334191A (en) | Card plate thickness detector for card reader-writer | |
| JPH02283469A (en) | Recorder | |
| JPS6369675A (en) | Identification mark printing apparatus of printer | |
| JPH01156884A (en) | Bar code reading system | |
| JPH0644394A (en) | Passbook processing device | |
| JPH03270958A (en) | Control system for conveying passbook | |
| JPH08138311A (en) | Card processor | |
| JPH0336072A (en) | Recording apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080903 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080903 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090903 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090903 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100903 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |