JPS57193868A - Recognizing system for mark discriminating circuit of optical mark reader - Google Patents
Recognizing system for mark discriminating circuit of optical mark readerInfo
- Publication number
- JPS57193868A JPS57193868A JP7657681A JP7657681A JPS57193868A JP S57193868 A JPS57193868 A JP S57193868A JP 7657681 A JP7657681 A JP 7657681A JP 7657681 A JP7657681 A JP 7657681A JP S57193868 A JPS57193868 A JP S57193868A
- Authority
- JP
- Japan
- Prior art keywords
- mark
- discriminating circuit
- level
- recognizing system
- circuit
- 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
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Abstract
PURPOSE:To improve the data reliability in the mark recognizing system, by sampling a mark signal in the time division and checking the continuity of the mark signal. CONSTITUTION:A mark signal waveform is converted to a digital signal with a slice level by a binary circuit 2. In this case, the slice level is switched to the highlevel and the low level by a clock, and digital signals for the high level and the low level are taken out and are sent to mark discriminating circuit 3. The mark discriminating circuit 3 checks the continuity of signals higher than the low and high slice levles and sends signals to a data code converting circuit 4 as mark data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7657681A JPS57193868A (en) | 1981-05-22 | 1981-05-22 | Recognizing system for mark discriminating circuit of optical mark reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7657681A JPS57193868A (en) | 1981-05-22 | 1981-05-22 | Recognizing system for mark discriminating circuit of optical mark reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57193868A true JPS57193868A (en) | 1982-11-29 |
Family
ID=13609077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7657681A Pending JPS57193868A (en) | 1981-05-22 | 1981-05-22 | Recognizing system for mark discriminating circuit of optical mark reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57193868A (en) |
-
1981
- 1981-05-22 JP JP7657681A patent/JPS57193868A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IT7925633A0 (en) | SO-CALLED CMOS CIRCUIT SUITABLE FOR CONVERTING A TERNARY SIGNAL INTO TWO BINARY SIGNALS AND USING THIS CIRCUIT. | |
| FI883954A (en) | OVERFLOWING OVER / ELLER ANODNING FOER DEMODULERING AV EN BIPHASE SIGNAL. | |
| JPS5230119A (en) | Bar code discrimination logical circuit | |
| JPS57193868A (en) | Recognizing system for mark discriminating circuit of optical mark reader | |
| JPS537352A (en) | Data collection system in digital telemeter system | |
| DE3772179D1 (en) | CIRCUIT TO GENERATE A PERIODIC SIGNAL PARABOLIC SIGNAL. | |
| JPS5799062A (en) | Reception circuit for data transmission | |
| JPS5492717A (en) | Magnetic storage-reproducer | |
| ES485207A1 (en) | Error correction device in a coded-character recognition system. | |
| JPS5310915A (en) | Binary signal detecting circuit | |
| DE3574548D1 (en) | BINARY DATA SIGNALS MODULABLE HIGH FREQUENCY TRANSMITTER. | |
| JPS5748841A (en) | Clock selection system | |
| JPS5715585A (en) | Sampling circuit for character multiplex broadcast signal | |
| JPS5781752A (en) | Demodulating circuit for transmission system of same direction data | |
| JPS5420612A (en) | Transmssion system for coded signal | |
| GB1487627A (en) | Multiple-frequency code receiver | |
| JPS547846A (en) | Discrimination system for digital amplitude, polarity and code | |
| JPS57204663A (en) | Carrier wave detecting system | |
| JPS57154613A (en) | Digital modulating system | |
| JPS548908A (en) | Correstion system of delay detection error | |
| JPS5377513A (en) | Clock regenerating system | |
| JPS5312227A (en) | Signal processing system | |
| JPS51140404A (en) | Signal detecting system for digital communication | |
| JPS5761328A (en) | Detection circuit of coincidence of changing point of two kinds of clock signal | |
| JPS5297628A (en) | Card processing unit with clock signal decision unit |