JPS54100230A - Bar-code reading system - Google Patents

Bar-code reading system

Info

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
Application number
JP700978A
Other languages
Japanese (ja)
Inventor
Tsutomu Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP700978A priority Critical patent/JPS54100230A/en
Publication of JPS54100230A publication Critical patent/JPS54100230A/en
Pending legal-status Critical Current

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
JP700978A 1978-01-24 1978-01-24 Bar-code reading system Pending JPS54100230A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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