JPS5520585A - Demodulating system for bar-code signal - Google Patents

Demodulating system for bar-code signal

Info

Publication number
JPS5520585A
JPS5520585A JP9403078A JP9403078A JPS5520585A JP S5520585 A JPS5520585 A JP S5520585A JP 9403078 A JP9403078 A JP 9403078A JP 9403078 A JP9403078 A JP 9403078A JP S5520585 A JPS5520585 A JP S5520585A
Authority
JP
Japan
Prior art keywords
width
pair
white
module
counter
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
JP9403078A
Other languages
Japanese (ja)
Inventor
Masuo Sugihara
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP9403078A priority Critical patent/JPS5520585A/en
Publication of JPS5520585A publication Critical patent/JPS5520585A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To ensure neglect of the error of the print blur width by generating the sampling pulse which corresponds to the average module width of the pair of white and black bars obtained from the contents of the module counter.
CONSTITUTION: Width counter 15 measures the whole width of the pair of white and black bars, and the number of the module contained in the pair of bars through module counter 28. Then the sampling pulse is generated in accordance with the average module width of the white-black bar pair obtained from the contents of counter 28, and the subsequent white-black bar pair is demodulated based on the sampling pulse. As a result, the width error caused by the print blur can be neglected.
COPYRIGHT: (C)1980,JPO&Japio
JP9403078A 1978-07-31 1978-07-31 Demodulating system for bar-code signal Pending JPS5520585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9403078A JPS5520585A (en) 1978-07-31 1978-07-31 Demodulating system for bar-code signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9403078A JPS5520585A (en) 1978-07-31 1978-07-31 Demodulating system for bar-code signal

Publications (1)

Publication Number Publication Date
JPS5520585A true JPS5520585A (en) 1980-02-14

Family

ID=14099155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9403078A Pending JPS5520585A (en) 1978-07-31 1978-07-31 Demodulating system for bar-code signal

Country Status (1)

Country Link
JP (1) JPS5520585A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617474A (en) * 1979-07-21 1981-02-19 Nec Corp Bar-code read system
JPS5629773A (en) * 1979-08-15 1981-03-25 Nec Corp Bar code reader
JPS575175A (en) * 1980-06-13 1982-01-11 Nec Corp Bar code reader
JPS5723178A (en) * 1980-07-15 1982-02-06 Sankusu:Kk Information code reader of label reader
JPS57191783A (en) * 1981-05-18 1982-11-25 Ibm Interpretation of bar code characters
JPS57211668A (en) * 1981-06-23 1982-12-25 Fujitsu Ltd Serial signal correcting system
JPH04282787A (en) * 1990-08-31 1992-10-07 Gold Star Co Ltd Bar code reading decoder
US5767497A (en) * 1996-12-04 1998-06-16 United Parcel Service Of America, Inc. Method and apparatus for decoding bar code symbols using ratio analysis of module size

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617474A (en) * 1979-07-21 1981-02-19 Nec Corp Bar-code read system
JPS5629773A (en) * 1979-08-15 1981-03-25 Nec Corp Bar code reader
JPS575175A (en) * 1980-06-13 1982-01-11 Nec Corp Bar code reader
JPS5723178A (en) * 1980-07-15 1982-02-06 Sankusu:Kk Information code reader of label reader
JPS6356587B2 (en) * 1980-07-15 1988-11-08 Sankusu Kk
JPS57191783A (en) * 1981-05-18 1982-11-25 Ibm Interpretation of bar code characters
JPS6227434B2 (en) * 1981-05-18 1987-06-15 Intaanashonaru Bijinesu Mashiinzu Corp
JPS57211668A (en) * 1981-06-23 1982-12-25 Fujitsu Ltd Serial signal correcting system
JPS6363949B2 (en) * 1981-06-23 1988-12-09
JPH04282787A (en) * 1990-08-31 1992-10-07 Gold Star Co Ltd Bar code reading decoder
US5767497A (en) * 1996-12-04 1998-06-16 United Parcel Service Of America, Inc. Method and apparatus for decoding bar code symbols using ratio analysis of module size

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