| dbo:abstract |
Plessey Code is a 1D linear barcode symbology based on pulse-width modulation, developed in 1971 by The Plessey Company plc, a British-based company. It is one of the first barcode symbology, and is still used rarely in some libraries and for shelf tags in retail stores, in part as a solution to their internal requirement for stock control. The system was first used in the early 1970s by J.Sainsbury to identify all of its products on supermarket shelves for its product restocking system. The chief advantages are the relative ease of printing using the dot-matrix printers popular at the time of the code's introduction, and its somewhat higher density than the more common 2 of 5 and 3 of 9 codes. It has later led several variations as Anker Code by ADS Company, Telxon, and MSI (also known as Plessey modified). It is difficult to have the specifications for them nowadays and thus hard to tell the differences between them (except for MSI), because it was mainly available as a paper document and has since been discontinued. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Plessey_barcode.svg?width=300 |
| dbo:wikiPageExternalLink |
http://philippe.corbes.free.fr/codebarre/codebar/codebar.html%23Plessey http://www.adams1.com/plessy.html http://www.idhistory.com/miscsymbolprops/AnkerPlessey.pdf |
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| dbo:wikiPageWikiLink |
dbr:Cyclic_redundancy_check dbr:Dot_matrix_printing dbr:Most_significant_bit dbr:Plessey dbr:Pulse-width_modulation dbr:Symbol dbr:Barcode dbr:Hexadecimal dbc:History_of_computing_in_the_United_Kingdom dbc:Plessey dbc:Barcodes dbr:Least_significant_bit dbr:Polynomial dbr:MSI_Barcode dbr:Mathematics_of_CRC dbr:File:Plessey_barcode.svg dbr:File:Plessey_barcode_anker_dimension.svg dbr:File:Plessey_barcode_composition.svg dbr:File:Plessey_barcode_values.svg |
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dbt:Barcodes dbt:Unreferenced dbt:Use_dmy_dates |
| dcterms:subject |
dbc:History_of_computing_in_the_United_Kingdom dbc:Plessey dbc:Barcodes |
| rdfs:comment |
Plessey Code is a 1D linear barcode symbology based on pulse-width modulation, developed in 1971 by The Plessey Company plc, a British-based company. It is one of the first barcode symbology, and is still used rarely in some libraries and for shelf tags in retail stores, in part as a solution to their internal requirement for stock control. The system was first used in the early 1970s by J.Sainsbury to identify all of its products on supermarket shelves for its product restocking system. (en) |
| rdfs:label |
Plessey Code (en) |
| owl:sameAs |
freebase:Plessey Code wikidata:Plessey Code https://global.dbpedia.org/id/4tvqg |
| prov:wasDerivedFrom |
wikipedia-en:Plessey_Code?oldid=1106868089&ns=0 |
| foaf:depiction |
wiki-commons:Special:FilePath/Plessey_barcode.svg wiki-commons:Special:FilePath/Plessey_barcode_anker_dimension.svg wiki-commons:Special:FilePath/Plessey_barcode_composition.svg wiki-commons:Special:FilePath/Plessey_barcode_values.svg |
| foaf:isPrimaryTopicOf |
wikipedia-en:Plessey_Code |
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dbr:Plessey_(disambiguation) |
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dbr:John_Allen_Clark dbr:Plessey_(disambiguation) dbr:Barcode dbr:MSI_Barcode |
| is foaf:primaryTopic of |
wikipedia-en:Plessey_Code |
