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....

The Plessey Company plc was a British electronics, defence and telecommunications company. It originated in 1917, growing and diversifying into electronics...

A QR code, short for quick-response code, is a type of two-dimensional matrix barcode invented in 1994 by Masahiro Hara of the Japanese company Denso...

(also known as Modified Plessey) is a barcode symbology developed by the MSI Data Corporation, based on the original Plessey Code symbology. It is a continuous...

by Plessey. In June 1974, Marsh supermarket in Troy, Ohio used a scanner made by Photographic Sciences Corporation to scan the Universal Product Code (UPC)...

Plessey was a British electronics company. It can also refer to: Plessey Code, a British barcode system Plessey System 250, a computer system that implements...

basis of the Uniform Product Code. Technology firms including Charegon, IBM, Litton-Zellweger, Pitney Bowes-Alpex, Plessey-Anker, RCA, Scanner Inc., Singer...

the British Plessey Company, an electronics and telecommunications group built up by his father, Allen George Clark. His career with Plessey was dominated...

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code is assigned by the manufacturer. The product code immediately follows manufacturer code. The total length of manufacturer code plus product code...

Plessey System 250, also known as PP250, was the first operational computer to implement capability-based addressing, to check and balance the computation...

Han Xin code (汉信码 in Chinese, Chinese-sensible code) is two-dimensional (2D) matrix barcode symbology invented in 2007 by Chinese company The Article...

The Aztec Code is a matrix code invented by Andrew Longacre, Jr. and Robert Hussey in 1995. The code was published by AIM, Inc. in 1997. Although the Aztec...

Code 128 is a high-density linear barcode symbology defined in ISO/IEC 15417:2007. It is used for alphanumeric or numeric-only barcodes. It can encode...

JAB Code (Just Another Barcode) is a colour 2D matrix symbology made of colour squares arranged in either square or rectangle grids. It was developed by...

Code 39 (also known as Alpha39, Code 3 of 9, Code 3/9, Type 39, USS Code 39, or USD-3) is a variable length, discrete barcode symbology defined in ISO/IEC...

A two-out-of-five code is a constant-weight code that provides exactly ten possible combinations of two bits, and is thus used for representing the decimal...

Used the Red Beard physics package Violet Picture – UHF Homer, built by Plessey – Fitted to many RAF aircraft Violet Vision – nuclear warhead for Corporal...

A Data Matrix is a two-dimensional code consisting of black and white "cells" or dots arranged in either a square or rectangular pattern, also known as...

QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 by Denso Wave as ISO/IEC 23941. rMQR Code is...

structure and encoding system unique to Canada Post. This particular bar code system is used on "flats" (which are larger-than-letter-size pieces of mail...

from the light source as the tip crosses each bar and space in the printed code. The photodiode generates a waveform that is used to measure the widths of...

ShotCode is a circular barcode created by High Energy Magic of Cambridge University. It uses a dartboard-like circle, with a bullseye in the centre and...

Computer printer Label printer Magazine, Smithsonian. "The History of the Bar Code". Smithsonian Magazine. Retrieved 2023-06-21. "Barcode Labels: A Comprehensive...

Bowes Corp. It and its variants are also known as Codeabar, Ames Code, NW-7, Monarch, Code 2 of 7, Rationalized Codabar, ANSI/AIM BC3-1995 or USD-4. Although...

promoted by Digital Convergence. The CueCat was named CUE for the unique bar code which the device scanned and CAT as a wordplay on "Keystroke Automation Technology"...

DotCode is two-dimensional (2D) matrix barcode invented in 2008 by Hand Held Products company to replace outdated Code 128. At this time, it is issued...

decided to accept Crossbar equipment into its network. This code was given to Plessey's 5005A switch, which was used for local exchanges in non-director...

was created by David Allais, who also invented barcodes Code 39, Code 11, Code 93, and Code 49. ITF encodes pairs of digits; the first digit is encoded...

United States Postal Service to assist in directing mail. The ZIP Code or ZIP+4 code is encoded in half- and full-height bars. Most often, the delivery...