BE832612A - Circuit de correlation de lecteur optique - Google Patents
Circuit de correlation de lecteur optiqueInfo
- Publication number
- BE832612A BE832612A BE159350A BE159350A BE832612A BE 832612 A BE832612 A BE 832612A BE 159350 A BE159350 A BE 159350A BE 159350 A BE159350 A BE 159350A BE 832612 A BE832612 A BE 832612A
- Authority
- BE
- Belgium
- Prior art keywords
- optical reader
- correlation circuit
- correlation
- circuit
- reader
- Prior art date
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
-
- 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
- G06K7/10861—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 sensing of data fields affixed to objects or articles, e.g. coded labels
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)
- Image Input (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52538774A | 1974-11-20 | 1974-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE832612A true BE832612A (fr) | 1975-12-16 |
Family
ID=24093041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE159350A BE832612A (fr) | 1974-11-20 | 1975-08-21 | Circuit de correlation de lecteur optique |
Country Status (9)
Country | Link |
---|---|
US (1) | US4092525A (fr) |
JP (1) | JPS5848947B2 (fr) |
AU (1) | AU498576B2 (fr) |
BE (1) | BE832612A (fr) |
CA (1) | CA1054717A (fr) |
DE (1) | DE2551420A1 (fr) |
FR (1) | FR2292288A1 (fr) |
GB (1) | GB1515386A (fr) |
IL (1) | IL47931A (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2636906C3 (de) * | 1976-08-17 | 1983-12-29 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Verfahren zur Erzeugung eines Schaltsignals beim Durchgang eines Kontrastsprunges und Schaltungsanordnung zur Ausführung des Verfahrens |
DE3014467A1 (de) * | 1980-04-15 | 1981-11-12 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zum erkennen von strichfoermigen markierungen |
US4542528A (en) * | 1981-04-09 | 1985-09-17 | Recognition Equipment Incorporated | OCR and bar code reader with optimized sensor |
FR2569022B1 (fr) * | 1984-08-10 | 1986-11-21 | Thomson Csf | Procede de detection de codes-barres et dispositif pour la mise en oeuvre du procede |
US4757189A (en) * | 1986-03-04 | 1988-07-12 | Daboub Henry A | Apparatus for coding reusable envelopes |
US5086215A (en) * | 1988-10-26 | 1992-02-04 | National Computer Systems, Inc. | Method and apparatus for discriminating or locating bar codes for an optical mark reader |
US5326963A (en) * | 1992-10-02 | 1994-07-05 | Kronos Incorporated | Electro-optic barcode reader |
US6772948B2 (en) * | 2000-12-28 | 2004-08-10 | Ericsson Inc. | Manual bar code scanner with improved reliability |
US20060087622A1 (en) * | 2004-10-21 | 2006-04-27 | Brown Stephen J | Projector apparatus and methods |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1266029B (de) * | 1962-05-02 | 1968-04-11 | Olympia Werke Ag | Einrichtung zur zeitlichen Anpassung der von einem Taktgeber gelieferten Impulsfolge an den Vorlauf einer ohne Transportlochungen ausgebildeten Lochkarte |
US3628031A (en) * | 1969-02-06 | 1971-12-14 | Automata Corp | Closed loop control system for automatic sensitivity control of transducer |
US3643066A (en) * | 1970-02-12 | 1972-02-15 | Calculagraph Co | Arrangement for the automatic identification of information on a nonperforated data processing card |
US3716699A (en) * | 1971-04-02 | 1973-02-13 | A Eckert | Method and apparatus for optical code reading |
US3723710A (en) * | 1971-06-28 | 1973-03-27 | Ibm | Method and device for reading and decoding a high density self-clocking bar code |
GB1399256A (en) * | 1971-10-22 | 1975-07-02 | Sick Erwin | Method and apparatus for detecting the passing of a straight contrast boundary |
US3727202A (en) * | 1972-01-10 | 1973-04-10 | Telex Computer Products | Application of an automatic pulse width controlled, monostable multivibrator for detecting phase encoded information on magnetic tape |
JPS4914038A (fr) * | 1972-05-16 | 1974-02-07 | ||
US3763351A (en) * | 1972-07-14 | 1973-10-02 | Ibm | Bar code scanner |
US3854035A (en) * | 1972-07-31 | 1974-12-10 | Ferranti Packard Ltd | Method and means for reading coded information |
JPS4967524A (fr) * | 1972-11-01 | 1974-07-01 |
-
1975
- 1975-07-29 CA CA232494A patent/CA1054717A/fr not_active Expired
- 1975-08-06 AU AU83714/75A patent/AU498576B2/en not_active Expired
- 1975-08-08 GB GB33195/75A patent/GB1515386A/en not_active Expired
- 1975-08-17 IL IL47931A patent/IL47931A/en unknown
- 1975-08-21 BE BE159350A patent/BE832612A/fr not_active IP Right Cessation
- 1975-10-16 JP JP50125233A patent/JPS5848947B2/ja not_active Expired
- 1975-10-27 FR FR7532799A patent/FR2292288A1/fr active Granted
- 1975-11-15 DE DE19752551420 patent/DE2551420A1/de not_active Ceased
-
1976
- 1976-05-06 US US05/683,981 patent/US4092525A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2292288B1 (fr) | 1981-08-21 |
IL47931A (en) | 1977-01-31 |
CA1054717A (fr) | 1979-05-15 |
AU8371475A (en) | 1977-02-10 |
JPS5848947B2 (ja) | 1983-11-01 |
JPS5165833A (fr) | 1976-06-07 |
FR2292288A1 (fr) | 1976-06-18 |
GB1515386A (en) | 1978-06-21 |
AU498576B2 (en) | 1979-03-15 |
IL47931A0 (en) | 1975-11-25 |
DE2551420A1 (de) | 1976-05-26 |
US4092525A (en) | 1978-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: E-SYSTEMS INC. Effective date: 19900831 |