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Pandigital, Inc., was a digital photo-frame manufacturer founded in 1998 that around 2010 began to expand its product line to include e-reader, tablets and e-books. Its tablet products included the Planet, Novel, Star, Nova, and SuperNova, and an offline Wikipedia reader called WikiReader .
The act of scanning a photo generally entails something along the lines of placing the photo onto a device, loading some photo software, waiting while the scanner groans away, cropping the ...
Backscatter (photography) The backscatter of the camera's flash by motes of dust causes unfocused orb-shaped photographic artifacts. In photography, backscatter (also called near-camera reflection [1]) is an optical phenomenon resulting in typically circular artifacts on an image, due to the camera's flash being reflected from unfocused motes ...
An image scanner —often abbreviated to just scanner —is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image. Commonly used in offices are variations of the desktop flatbed scanner where the document is placed on a glass window for scanning.
The green light typically changes to a solid green indication for a few seconds before changing to yellow and then red but the solid green phase may be omitted depending on the road authority that installed the traffic light. The intention of the flashing green is to let drivers know that the signal will only change to yellow for pedestrians ...
Traffic light. An LED 50- watt traffic light in Portsmouth, United Kingdom. Traffic lights, traffic signals, or stoplights – also known as robots in South Africa [ 1][ 2] and Namibia – are signaling devices positioned at road intersections, pedestrian crossings, and other locations in order to control the flow of traffic.
Signal lamp. A signal lamp (sometimes called an Aldis lamp or a Morse lamp[ 1]) is a visual signaling device for optical communication by flashes of a lamp, typically using Morse code. The idea of flashing dots and dashes from a lantern was first put into practice by Captain Philip Howard Colomb, of the Royal Navy, in 1867.
Aviation light signals. A United States Air Force airman with a signal light gun that can be used to control aircraft with radio failure. In the case of a radio failure or aircraft not equipped with a radio, or in the case of a deaf pilot, air traffic control may use a signal lamp (called a "signal light gun" or "light gun" by the FAA [ 1 ][ 2 ...