JPS57125470A - Bar-code detecting device - Google Patents
Bar-code detecting deviceInfo
- Publication number
- JPS57125470A JPS57125470A JP1121381A JP1121381A JPS57125470A JP S57125470 A JPS57125470 A JP S57125470A JP 1121381 A JP1121381 A JP 1121381A JP 1121381 A JP1121381 A JP 1121381A JP S57125470 A JPS57125470 A JP S57125470A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- bar
- circuit
- document
- code
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/01—Details
- G06K7/016—Synchronisation of sensing process
- G06K7/0166—Synchronisation of sensing process by means of clock-signals derived from the code marks, e.g. self-clocking code
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Abstract
PURPOSE:To prevent the bar-code from being printed twice on a document, by using a photoelectric transducer, a counter, a gate generator, a clock generator, etc. to detect whether the bar-code exists on the document or not. CONSTITUTION:A photoelectric converter 1 read ''0'' and ''1'' in accordance with the ground part and the print part on the document. A counter 2 counts the number of ''1''s of the output signal from the converter 1. A gate generating circuit 4 transmits a gate signal to the counter 2 and a comparing circuit 3, and the counter 2 is operated while this gate signal is ''1'', and the counter 2 is not operated while it is ''0''. The circuit 3 compares the output value of the counter 2 with the output value of a register 6; and if the output value of the counter 2 is larger, the circuit 3 outputs ''1''. A constant value is preset to the register preliminarily, and the output ''1'' of the circuit 3 indicates the detection of a bar-code.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1121381A JPS57125470A (en) | 1981-01-28 | 1981-01-28 | Bar-code detecting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1121381A JPS57125470A (en) | 1981-01-28 | 1981-01-28 | Bar-code detecting device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57125470A true JPS57125470A (en) | 1982-08-04 |
Family
ID=11771701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1121381A Pending JPS57125470A (en) | 1981-01-28 | 1981-01-28 | Bar-code detecting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57125470A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5155614A (en) * | 1974-11-11 | 1976-05-15 | Nippon Telegraph & Telephone | FUKUSUTEREBIJONSHINGODENSOHOSHIKI |
JPS5397323A (en) * | 1977-02-07 | 1978-08-25 | Furukawa Electric Co Ltd:The | Still picture scanning carving system |
JPS5431224A (en) * | 1977-08-15 | 1979-03-08 | Hitachi Denshi Ltd | Still picture transmission system |
JPS5543651A (en) * | 1978-09-25 | 1980-03-27 | Hitachi Ltd | Mark reader |
JPS5580178A (en) * | 1978-12-13 | 1980-06-17 | Shinko Electric Co Ltd | Special code detection method |
-
1981
- 1981-01-28 JP JP1121381A patent/JPS57125470A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5155614A (en) * | 1974-11-11 | 1976-05-15 | Nippon Telegraph & Telephone | FUKUSUTEREBIJONSHINGODENSOHOSHIKI |
JPS5397323A (en) * | 1977-02-07 | 1978-08-25 | Furukawa Electric Co Ltd:The | Still picture scanning carving system |
JPS5431224A (en) * | 1977-08-15 | 1979-03-08 | Hitachi Denshi Ltd | Still picture transmission system |
JPS5543651A (en) * | 1978-09-25 | 1980-03-27 | Hitachi Ltd | Mark reader |
JPS5580178A (en) * | 1978-12-13 | 1980-06-17 | Shinko Electric Co Ltd | Special code detection method |
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