FR2396362A1 - Procede de decodage d'informations portees par une etiquette et circuit correspondant - Google Patents
Procede de decodage d'informations portees par une etiquette et circuit correspondantInfo
- Publication number
- FR2396362A1 FR2396362A1 FR7817714A FR7817714A FR2396362A1 FR 2396362 A1 FR2396362 A1 FR 2396362A1 FR 7817714 A FR7817714 A FR 7817714A FR 7817714 A FR7817714 A FR 7817714A FR 2396362 A1 FR2396362 A1 FR 2396362A1
- Authority
- FR
- France
- Prior art keywords
- under control
- coded
- pulse frequencies
- frequencies during
- periods under
- 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
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
- G06K7/10881—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 constructional details of hand-held scanners
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Character Input (AREA)
- Labeling Devices (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
Décodeur d'informations portées sur une étiquette. On génère des signaux formés d'impulsions (chaque signal est engendré à une cadence différente), des signaux de portes en fonction de transitions choisies du signal d'entrée. On accumule ces impulsions pendant des instants de porte choisis et compare en permanence les impulsions ainsi accumulées pour détecter le début d'une étiquette. Utilisable dans les systèmes de distribution de produits commercialisables.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/809,964 US4125765A (en) | 1977-06-27 | 1977-06-27 | Label find method and circuit |
US05/809,966 US4086477A (en) | 1977-06-27 | 1977-06-27 | Decoding method and circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2396362A1 true FR2396362A1 (fr) | 1979-01-26 |
FR2396362B1 FR2396362B1 (fr) | 1981-05-29 |
Family
ID=27123289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7817714A Granted FR2396362A1 (fr) | 1977-06-27 | 1978-06-07 | Procede de decodage d'informations portees par une etiquette et circuit correspondant |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2396362A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784792A (en) * | 1972-03-29 | 1974-01-08 | Monarch Marking Systems Inc | Coded record and methods of and apparatus for encoding and decoding records |
US3860792A (en) * | 1972-01-27 | 1975-01-14 | Svenska Dataregister Ab | Method of identifying different distances between markings on a data record and a device for performing the method |
-
1978
- 1978-06-07 FR FR7817714A patent/FR2396362A1/fr active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3860792A (en) * | 1972-01-27 | 1975-01-14 | Svenska Dataregister Ab | Method of identifying different distances between markings on a data record and a device for performing the method |
US3784792A (en) * | 1972-03-29 | 1974-01-08 | Monarch Marking Systems Inc | Coded record and methods of and apparatus for encoding and decoding records |
Also Published As
Publication number | Publication date |
---|---|
FR2396362B1 (fr) | 1981-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |