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Noise, static or snow screen captured from a VHS tape. Noise, commonly known as static, white noise, static noise, or snow, in analog video, CRTs and television, is a random dot pixel pattern of static displayed when no transmission signal is obtained by the antenna receiver of television sets and other display devices.
Lauren notices strange noises coming from the apartment's sound system and occasionally sees the TV flashing up strange pictures and words. She tries to speak to Russell, but he blames her bipolar disorder and accuses her of paranoia. Later, Russell secretly installs CCTV cameras to observe Lauren's behavior.
A circuit that is oscillating will not amplify linearly, so desired signals passing through the stage will be distorted. In digital circuits, parasitic oscillations may only occur on particular logic transitions and may result in erratic operation of subsequent stages; for example, a counter stage may see many spurious pulses and count erratically.
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TP Vision (TP standing for TPV Philips) is a wholly owned subsidiary of TPV Technology, based in Amsterdam, Netherlands.It develops, manufactures and markets Philips branded TV sets and Philips Professional Displays and LEDwalls in Europe, Russia, the Middle East, Brazil, Argentina, Uruguay, Paraguay, Mexico, Peru, Chile and selected countries in Asia-Pacific, serving both the consumer and ...
In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal.In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel.
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A system may have low distortion for a steady-state signal, but not on sudden transients. In amplifiers, this problem can be traced to power supplies in some instances, to insufficient high-frequency performance or to excessive negative feedback. Related measurements are slew rate and rise time. Distortion in transient response can be hard to ...