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A plan position indicator ( PPI) is a type of radar display that represents the radar antenna in the center of the display, with the distance from it and height above ground drawn as concentric circles. As the radar antenna rotates, a radial trace on the PPI sweeps in unison with it about the center point. It is the most common type of radar ...
Horizontal blanking interval refers to a part of the process of displaying images on a computer monitor or television screen via raster scanning. CRT screens display images by moving beams of electrons very quickly across the screen. Once the beam of the monitor has reached the edge of the screen, it is switched off, and the deflection circuit ...
Pulse. (1995 film) Pulse (stylised as P•U•L•S•E) is a concert video by Pink Floyd of their 20 October 1994 concert at Earls Court, London during The Division Bell Tour. It was originally released on VHS [1] and Laserdisc [2] in June 1995, with a DVD release coming in July 2006, with the latter release containing numerous bonus features.
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Vertical blanking interval. 1135×624 4fsc decoded frame (Luma) from a Composite 4fsc decode of a LaserDisc via ld-decode. In a raster scan display, the vertical blanking interval ( VBI ), also known as the vertical interval or VBLANK, is the time between the end of the final visible line of a frame or field [1] and the beginning of the first ...
Pulse-width modulation ( PWM ), also known as pulse-duration modulation ( PDM) or pulse-length modulation ( PLM ), [1] is any method of representing a signal as a rectangular wave with a varying duty cycle (and for some methods also a varying period ). PWM is useful for controlling the average power or amplitude delivered by an electrical signal.
Pulse-per-second signal. A pulse per second ( PPS or 1PPS) is an electrical signal that has a width of less than one second and a sharply rising or abruptly falling edge that accurately repeats once per second. PPS signals are output by radio beacons, frequency standards, other types of precision oscillators and some GPS receivers.
Plasma display. A plasma display panel ( PDP) is a type of flat-panel display that uses small cells containing plasma: ionized gas that responds to electric fields. Plasma televisions were the first large (over 32 inches diagonal) flat-panel displays to be released to the public. Panasonic plasma TV of the last generation. 55 inch.