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Barcodes
A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode readers, of which there are several types. Later, two-dimensional (2D) variants were developed, using rectangles, dots, hexagons and other patterns, called ''matrix codes'' or ''2D barcodes'', although they do not use bars as such. 2D barcodes can be read using purpose-built 2D optical scanners, which exist in a few different forms. 2D barcodes can also be read by a digital camera connected to a microcomputer running software that takes a photographic image of the barcode and analyzes the image to deconstruct and decode the 2D barcode. A mobile device with an inbuilt camera, such as smartphone, can function as the latter type of 2D barcode reader using speciali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Universal Product Code
The Universal Product Code (UPC or UPC code) is a barcode symbology that is widely used worldwide for tracking trade items in stores. UPC (technically refers to UPC-A) consists of 12 digits that are uniquely assigned to each trade item. Along with the related International Article Number (EAN) barcode, the UPC is the barcode mainly used for scanning of trade items at the point of sale, per the specifications of the international GS1 organisation. UPC data structures are a component of Global Trade Item Numbers (GTINs) and follow the global GS1 specification, which is based on international standards. But some retailers (clothing, furniture) do not use the GS1 system (rather other barcode symbologies or article number systems). On the other hand, some retailers use the EAN/UPC barcode symbology, but without using a GTIN (for products sold in their own stores only). Research indicates that the adoption and diffusion of the UPC stimulated innovation and contributed to the growth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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QR Code
A QR code (an initialism for quick response code) is a type of Barcode#Matrix (2D) barcodes, matrix barcode (or two-dimensional barcode) invented in 1994 by the Japanese company Denso#Denso Wave, Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier, or Website visitor tracking, tracker that points to a website or application. QR codes use four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used. The quick response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard Universal Product Code, UPC barcodes. Applications include product tracking, item identification, time tracking, document management, and general marketing. A QR code consists of black squares arranged in a square grid on a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Barcode Reader
A barcode reader is an optical scanner that can read printed barcodes, decode the data contained in the barcode to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor for translating optical impulses into electrical signals. Additionally, nearly all barcode readers contain ''decoder'' circuitry that can analyse the barcode's image data provided by the sensor and send the barcode's content to the scanner's output port. Types of barcode scanners Technology Barcode readers can be differentiated by technologies as follows: Pen-type readers Pen-type readers consist of a light source and photodiode that are placed next to each other in the tip of a pen. To read a barcode, the person holding the pen must move the tip of it across the bars at a relatively uniform speed. The photodiode measures the intensity of the light reflected back from the light source as the tip crosses each bar and space in the printed code. The photodiode generate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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George Laurer
George Joseph Laurer III (September 23, 1925 – December 5, 2019) was an American engineer for IBM at Research Triangle Park in North Carolina. He published 20 bulletins, held 28 patents and developed the Universal Product Code (UPC) in the early 1970s. He devised the coding and pattern used for the UPC, based on Joe Woodland's more general idea for barcodes. Early life George Laurer was born on September 23, 1925, in New York City. His family moved to Baltimore, Maryland, so his father, an electrical engineer, could work for the United States Navy. Laurer recovered from polio which he contracted as a teenager, nonetheless, while in 11th grade, he was drafted into the U.S. Army during World War II. After being discharged from the military, he attended technical school where he studied radio and television repair. Upon completion of his first year at the technical school, his instructor convinced him that he should not continue that course of study, but that he should go to col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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KarTrak ACI
KarTrak, sometimes KarTrak ACI (''Automatic Car Identification'') is a colored barcode system designed to automatically identify railcars and other rolling stock. KarTrak was made a requirement in North America, but technical problems led to the abandonment of the system in the late 1970s. History In the late 1960s, railroads in North America began searching for a system that would allow them to automatically identify railcars and other rolling stock. Through the efforts of the Association of American Railroads (AAR), a number of companies developed automatic equipment identification (AEI) systems. The AAR selected four systems for extensive field tests. General Electric developed an RFID system, ABEX a microwave system, Wabco a black-and-white barcode system, and General Telephone & Electronics (GTE) a color barcode system called KarTrak. All those systems, except the RFID system, had labels that were mounted on each side of the railcar, and a trackside scanner. After the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Automatic Identification And Data Capture
Automatic identification and data capture (AIDC) refers to the methods of automatically identifying objects, collecting data about them, and entering them directly into computer systems, without human involvement. Technologies typically considered as part of AIDC include QR codes, bar codes, radio frequency identification (RFID), biometrics (like iris and facial recognition system), magnetic stripes, optical character recognition (OCR), smart cards, and voice recognition. AIDC is also commonly referred to as "Automatic Identification", "Auto-ID" and "Automatic Data Capture". AIDC is the process or means of obtaining external data, particularly through the analysis of images, sounds, or videos. To capture data, a transducer is employed which converts the actual image or a sound into a digital file. The file is then stored and at a later time, it can be analyzed by a computer, or compared with other files in a database to verify identity or to provide authorization to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Bernard Silver
Bernard Silver (September 21, 1924 – August 28, 1963) was an early developer of barcode technology alongside Norman Joseph Woodland. Silver earned his Bachelor of Science in Electrical Engineering from the Drexel Institute of Technology in 1947. In 1948 Silver paired with Norman Joseph Woodland to come up with an automated way to read product data after overhearing the conversation of a local grocery store president. Their initial results, a system of lines and circles based on Morse code, was replaced with a bulls eye pattern so it could be scanned from any direction. Silver and Woodland filed a patent for their system on October 20, 1949. was granted on October 7, 1952. "The two men eventually sold their patent to Philco for $15,000 — all they ever made from their invention." During his career Silver served as a physics instructor at Drexel and as vice-president of Electro Nite Inc. He died August 28, 1963 of bronchopneumonia due to acute myelogenous leukemia at the age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Radio-frequency Identification
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an identifying inventory number, back to the reader. This number can be used to track inventory goods. Passive tags are powered by energy from the RFID reader's interrogating radio waves. Active tags are powered by a battery and thus can be read at a greater range from the RFID reader, up to hundreds of meters. Unlike a barcode, the tag does not need to be within the line of sight of the reader, so it may be embedded in the tracked object. RFID is one method of automatic identification and data capture (AIDC). RFID tags are used in many industries. For example, an RFID tag attached to an automobile during production can be used to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Drexel Institute Of Technology
Drexel University is a private research university with its main campus in Philadelphia, Pennsylvania. Drexel's undergraduate school was founded in 1891 by Anthony J. Drexel, a financier and philanthropist. Founded as Drexel Institute of Art, Science and Industry, it was renamed Drexel Institute of Technology in 1936, before assuming its current name in 1970. , more than 24,000 students were enrolled in over 70 undergraduate programs and more than 100 master's, doctoral, and professional programs at the university. Drexel's cooperative education program (co-op) is a prominent aspect of the school's degree programs, offering students the opportunity to gain up to 18 months of paid, full-time work experience in a field relevant to their undergraduate major or graduate degree program prior to graduation. History Drexel University was founded in 1891 as the Drexel Institute of Art, Science and Industry, by Philadelphia financier and philanthropist Anthony J. Drexel. The orig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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PSC Inc
PSC may refer to: Business * Pacific Securities, a Kunming-based company * People with Significant Control, in United Kingdom company law * Personal service corporation, in United States tax law * Powerchip, Taiwanese manufacturer of computer memory * Protein Sciences Corporation, an American biotech company * Public Service Commission (other), regulatory bodies, with competence varying by jurisdiction * Production sharing contract, a type of contract used in the resource extraction industry Government * Public Safety Canada * Pacific Salmon Commission Education * Parkwood Secondary College, Ringwood North, Victoria, Australia * Parkdale Secondary College, Mordialloc, Victoria, Australia * Peter Symonds College, Winchester, UK * Pensacola State College, Pensacola, Florida * Peru State College, Peru, Nebraska * Philippine Science Consortium, an organization of tertiary schools in the Philippines * Photography Studies College, Melbourne, Victoria, Australia * Polk S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Troy, Ohio
Troy is a city in and the county seat of Miami County, Ohio, United States, located north of Dayton. The population was 26,305 at the 2020 census, making it the largest city in Miami County and the 55th largest city in Ohio; it is part of the Dayton Metropolitan Statistical Area. Troy is home to an annual Strawberry Festival the first weekend in June. History Troy was platted ca. 1807. A post office in Troy has been in operation since 1824. Troy was one of the cities impacted by severe flooding in the Great Flood of 1913. A definitive book on the history of Troy titled "Troy: The Nineteenth Century" was authored and published by Thomas Bemis Wheeler and the Troy Historical Society in January, 1970. Copies are still available online and through the organization. Detailed events include the founding of the city and the Ohio canal era of the 1800s. Historic sites The city was the location of the Hobart Welded Steel House Company, which might have become influential in U.S. hous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |