JPS57172478A - Type deciding method for bar code of bar code reader - Google Patents
Type deciding method for bar code of bar code readerInfo
- Publication number
- JPS57172478A JPS57172478A JP56058809A JP5880981A JPS57172478A JP S57172478 A JPS57172478 A JP S57172478A JP 56058809 A JP56058809 A JP 56058809A JP 5880981 A JP5880981 A JP 5880981A JP S57172478 A JPS57172478 A JP S57172478A
- Authority
- JP
- Japan
- Prior art keywords
- bar code
- signal
- electric signal
- type
- waveform shaping
- 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.)
- Granted
Links
- 238000007493 shaping process Methods 0.000 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 1
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)
- Character Discrimination (AREA)
Abstract
PURPOSE:To decide the type of a bar code in an easy and accurate way, by collating the start of an input signal and the bar code at a prescribed position with the bar code pattern stored in a bar code pattern memory by a central processor and discriminating the type of the bar code. CONSTITUTION:The width and the space of bars of a bar code are detected in the form of the reflection quantity of light by a pen reader, etc. at an optical input signal part (a) and then converted into an electric signal through an electric signal converting part (b). The waveform shaping is given to the electric signal through a waveform shaping circuit (c), and the electric signal which has received the waveform shaping is compared with a prescribed clock pulse through a digital analyzing circuit (d). Thus a digital signal corresponding to the clock pulse is outputted. Said digital signal is stored in a central processor (e) in the form of a ratio signal. At the same time, the start bit, end bit and center bit of various codes are stored in a various bar code pattern memory (f). The contents of the memory (f) are compared with the digital signal given from the circuit (d) through the processor (e). In such a way, the type of a bar code is carried out in an easy and accurate way.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56058809A JPS57172478A (en) | 1981-04-17 | 1981-04-17 | Type deciding method for bar code of bar code reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56058809A JPS57172478A (en) | 1981-04-17 | 1981-04-17 | Type deciding method for bar code of bar code reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57172478A true JPS57172478A (en) | 1982-10-23 |
JPH0238983B2 JPH0238983B2 (en) | 1990-09-03 |
Family
ID=13094925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56058809A Granted JPS57172478A (en) | 1981-04-17 | 1981-04-17 | Type deciding method for bar code of bar code reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57172478A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61194578A (en) * | 1985-02-22 | 1986-08-28 | Fujitsu Kiden Ltd | Automatic code selection of bar code |
JPS6429985A (en) * | 1987-07-27 | 1989-01-31 | Fuji Electric Co Ltd | Bar code reader |
JPH01500937A (en) * | 1986-09-29 | 1989-03-30 | マース,インコーポレィテッド | Barcode data automatic discrimination method and device |
JPH01147452U (en) * | 1988-03-31 | 1989-10-12 | ||
JPH01147451U (en) * | 1988-03-31 | 1989-10-12 | ||
JPH03209584A (en) * | 1989-10-13 | 1991-09-12 | Spectra Physics Inc | Decoding of binary scanning signal |
JPH0681044U (en) * | 1994-02-22 | 1994-11-15 | 富士電機株式会社 | Barcode reader |
JP2013171573A (en) * | 2012-02-23 | 2013-09-02 | Denso Wave Inc | Optical information reading device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5532116A (en) * | 1978-08-28 | 1980-03-06 | Nippon Signal Co Ltd:The | Discriminating method for bar-code reading |
JPS55150071A (en) * | 1979-05-14 | 1980-11-21 | Toko Inc | Card reader |
-
1981
- 1981-04-17 JP JP56058809A patent/JPS57172478A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5532116A (en) * | 1978-08-28 | 1980-03-06 | Nippon Signal Co Ltd:The | Discriminating method for bar-code reading |
JPS55150071A (en) * | 1979-05-14 | 1980-11-21 | Toko Inc | Card reader |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61194578A (en) * | 1985-02-22 | 1986-08-28 | Fujitsu Kiden Ltd | Automatic code selection of bar code |
JPH01500937A (en) * | 1986-09-29 | 1989-03-30 | マース,インコーポレィテッド | Barcode data automatic discrimination method and device |
JPS6429985A (en) * | 1987-07-27 | 1989-01-31 | Fuji Electric Co Ltd | Bar code reader |
JPH01147452U (en) * | 1988-03-31 | 1989-10-12 | ||
JPH01147451U (en) * | 1988-03-31 | 1989-10-12 | ||
JPH03209584A (en) * | 1989-10-13 | 1991-09-12 | Spectra Physics Inc | Decoding of binary scanning signal |
JPH0681044U (en) * | 1994-02-22 | 1994-11-15 | 富士電機株式会社 | Barcode reader |
JP2013171573A (en) * | 2012-02-23 | 2013-09-02 | Denso Wave Inc | Optical information reading device |
Also Published As
Publication number | Publication date |
---|---|
JPH0238983B2 (en) | 1990-09-03 |
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