JPS5520585A - Demodulating system for bar-code signal - Google Patents
Demodulating system for bar-code signalInfo
- 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
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
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)
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 |
-
1978
- 1978-07-31 JP JP9403078A patent/JPS5520585A/en active Pending
Cited By (11)
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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