JPS54100230A - Bar-code reading system - Google Patents
Bar-code reading systemInfo
- Publication number
- JPS54100230A JPS54100230A JP700978A JP700978A JPS54100230A JP S54100230 A JPS54100230 A JP S54100230A JP 700978 A JP700978 A JP 700978A JP 700978 A JP700978 A JP 700978A JP S54100230 A JPS54100230 A JP S54100230A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- bar
- scanning line
- gate
- signals
- 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.)
- Pending
Links
Abstract
PURPOSE: To reduce the misdetection caused by the soil and other factors by drawing out the scanning signals with every second unit to scan the different places on the bar-code label and comparing them to each other to decide the output data.
CONSTITUTION: Bar-code 2 is printed on bar-code lable 1, and soil 4 of such size as to cover about two pieces of scanning line 3 is given. In such case, the signals generated at scanning line 31 enter coincidence circuit 8 via bar-code detector circuit 6 and gate circuit 7 and at the same time advances ternary counter 9 by 1. Scanning line 32 and 33 advance counter 9 via circuit 6 and give the control to open gate 7 every second pieces at gate control circuit 10. And the signals of line 32 and 33 do not open the gate and never go to circuit 8. While the signals of scanning line 34 are controlled to open gate 7 and thus reach circuit 8 to given a coincidence with the signals generated at line 31. Thus, the output is drawn out from terminal 11. In such way, the generation of the error date can be prevented by securing the data coincidence with every two pieces of the scanning line.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP700978A JPS54100230A (en) | 1978-01-24 | 1978-01-24 | Bar-code reading system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP700978A JPS54100230A (en) | 1978-01-24 | 1978-01-24 | Bar-code reading system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54100230A true JPS54100230A (en) | 1979-08-07 |
Family
ID=11654050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP700978A Pending JPS54100230A (en) | 1978-01-24 | 1978-01-24 | Bar-code reading system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54100230A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58149199A (en) * | 1982-02-27 | 1983-09-05 | 三菱重工業株式会社 | Detector for cutting mark in cutter for tabular material |
US5600119A (en) * | 1988-10-21 | 1997-02-04 | Symbol Technologies, Inc. | Dual line laser scanning system and scanning method for reading multidimensional bar codes |
-
1978
- 1978-01-24 JP JP700978A patent/JPS54100230A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58149199A (en) * | 1982-02-27 | 1983-09-05 | 三菱重工業株式会社 | Detector for cutting mark in cutter for tabular material |
JPH0321319B2 (en) * | 1982-02-27 | 1991-03-22 | Mitsubishi Heavy Ind Ltd | |
US5600119A (en) * | 1988-10-21 | 1997-02-04 | Symbol Technologies, Inc. | Dual line laser scanning system and scanning method for reading multidimensional bar codes |
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