JPS5588172A - Check unit for information code mark - Google Patents
Check unit for information code markInfo
- Publication number
- JPS5588172A JPS5588172A JP16488478A JP16488478A JPS5588172A JP S5588172 A JPS5588172 A JP S5588172A JP 16488478 A JP16488478 A JP 16488478A JP 16488478 A JP16488478 A JP 16488478A JP S5588172 A JPS5588172 A JP S5588172A
- Authority
- JP
- Japan
- Prior art keywords
- bar codes
- rate
- check unit
- print quality
- read end
- 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.)
- Granted
Links
Abstract
PURPOSE: To realize a check unit which obtains the print quality control standard of bar codes, by calculating a rate of the number of times of reading bar codes to the number of times of recognition and then by displaying the obtained rate.
CONSTITUTION: Several scanning light beams are made to scan in parallel crossing bar codes of bar-code label 6 at right angles, and reflected light (e) is detected by photo detector 7. Then the output of detector 7 is sent to recognizing method 9 and only when it is recognized properly, a read end signal is outputted to arithmetic method 10. Arithmetic method 10 calculates a rate of the number of times of scans discriminated by a synchronizing signal to the number of read end signals and the result is displayed on display part 11. Then, the print quality of bar codes is brought under control by making use of the display.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16488478A JPS5588172A (en) | 1978-12-27 | 1978-12-27 | Check unit for information code mark |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16488478A JPS5588172A (en) | 1978-12-27 | 1978-12-27 | Check unit for information code mark |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5588172A true JPS5588172A (en) | 1980-07-03 |
JPS6153755B2 JPS6153755B2 (en) | 1986-11-19 |
Family
ID=15801721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16488478A Granted JPS5588172A (en) | 1978-12-27 | 1978-12-27 | Check unit for information code mark |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5588172A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5218190A (en) * | 1990-09-28 | 1993-06-08 | Symbol Technologies, Inc. | Means and method for non-contact bar code label verification |
US5621203A (en) * | 1992-09-25 | 1997-04-15 | Symbol Technologies | Method and apparatus for reading two-dimensional bar code symbols with an elongated laser line |
US5742038A (en) * | 1990-09-28 | 1998-04-21 | Symbol Technologies, Inc. | Beam shaping for optical scanners |
US5859417A (en) * | 1991-06-14 | 1999-01-12 | Symbol Technologies, Inc. | Optical scanners having dual surface optical elements for dual working ranges |
US6029893A (en) * | 1995-05-22 | 2000-02-29 | Symbol Technologies, Inc. | Optical scanner having a reflected light collector including holographic optical elements |
US6382513B1 (en) | 1991-07-25 | 2002-05-07 | Symbol Technologies, Inc. | Optical scanner with segmented collection mirror |
US6948662B2 (en) | 1991-07-25 | 2005-09-27 | Symbol Technologies, Inc. | Two-dimensional optical code scanner with scanning pattern having region of greater apparent brightness for assisting alignment of scanning pattern |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124923A (en) * | 1977-04-06 | 1978-10-31 | Shinko Electric Co Ltd | Method of reading bar code |
-
1978
- 1978-12-27 JP JP16488478A patent/JPS5588172A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124923A (en) * | 1977-04-06 | 1978-10-31 | Shinko Electric Co Ltd | Method of reading bar code |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5218190A (en) * | 1990-09-28 | 1993-06-08 | Symbol Technologies, Inc. | Means and method for non-contact bar code label verification |
US5504315A (en) * | 1990-09-28 | 1996-04-02 | Symbol Technologies, Inc. | Means and method for non-contact bar code label verification |
US5742038A (en) * | 1990-09-28 | 1998-04-21 | Symbol Technologies, Inc. | Beam shaping for optical scanners |
US5859417A (en) * | 1991-06-14 | 1999-01-12 | Symbol Technologies, Inc. | Optical scanners having dual surface optical elements for dual working ranges |
US6382513B1 (en) | 1991-07-25 | 2002-05-07 | Symbol Technologies, Inc. | Optical scanner with segmented collection mirror |
US6834805B2 (en) | 1991-07-25 | 2004-12-28 | Symbol Technologies, Inc. | Optical scanner with segmented collection mirror |
US6948662B2 (en) | 1991-07-25 | 2005-09-27 | Symbol Technologies, Inc. | Two-dimensional optical code scanner with scanning pattern having region of greater apparent brightness for assisting alignment of scanning pattern |
US5621203A (en) * | 1992-09-25 | 1997-04-15 | Symbol Technologies | Method and apparatus for reading two-dimensional bar code symbols with an elongated laser line |
US6029893A (en) * | 1995-05-22 | 2000-02-29 | Symbol Technologies, Inc. | Optical scanner having a reflected light collector including holographic optical elements |
Also Published As
Publication number | Publication date |
---|---|
JPS6153755B2 (en) | 1986-11-19 |
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