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The Plessey bar code is a pulse-width, modulated, non-self checking code. Each character consists of eight elements: four bars and four spaces. The character set includes the digits 0 through 9 and the upper case letters A through F. Plessey bar codes are used primarily in libraries. The MSI Plessey bar code is a variant of the Plessey barcode that is used primarily in store shelf labeling. A Modulo 10 checksum is appended to the end of the code. Products & Services
Bar code printers are used to output bar code data in printed form.
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Ink jet printers project electrically charged droplets of ink onto a page. Types of ink jet printers include thermal and piezo.
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Bar code cards are computer boards that contain storage, font macros, and logic for printing barcodes.
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Slot card bar code scanners are designed to read imprinted bar code cards that are passed through the aperture on the reader.
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Hand held bar code scanners are used typically as inventory or point of sale (POS) devices. These scanners are passed over bar codes manually to read data. They often have a gun or wand design.
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POSTNET is a bar codeused by the U.S. Postal Service (USPS) to sort mail automatically. The POSTNET code consists of evenly-spaced bars of two different heights. Each character is represented by five...
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EAN and JAN are abbreviations for European article numbering (EAN) and Japanese article numbering (JAN), respectively. EAN-13 is used worldwide for marking retail goods. It encodes 13 characters: the...
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AN1148 Cyclic Redundancy Check (CRC) Consider a message of 'M' of 'k' bits and generator Author: Sudhir Bommena polynomial 'G' of 'n + 1' bits. Dividing the message by Microchip Technology Inc. the...
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3.2 Character set
To ensure that IEC programs can be readily ported to different systems, all textual information should use a restricted set of letters, digits and characters. The standard requires...
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Introduction
RFID begins where barcode technology ends. A so-called smart label combines a \ barcode with an RFID tag. Smart labels have the intelligence and functionality of a tag and the printing...
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