Whois & Analysis for terbitfilm.com

720p (720 lines progressive) is a progressive HD signal format with 720 horizontal lines/1280 columns and an aspect ratio (AR) of , normally known as widescreen HD (1.78:1).

All major HD broadcasting standards (such as SMPTE 292M) include a 720p format, which has a resolution of 1280×720p.

1080p (1920 × 1080 progressively displayed pixels; also known as Full HD or FHD, and BT.709) is a set of HDTV high-definition video modes characterized by 1,920 pixels displayed across the screen horizontally and 1,080 pixels down the screen vertically; the p stands for progressive scan, i.e. non-interlaced.

The term usually assumes a widescreen aspect ratio of , implying a resolution of 2.1 megapixels.

It is often marketed as Full HD or FHD, to contrast 1080p with 720p resolution screens.

Although 1080p is sometimes referred to as 2K resolution (meaning having a horizontal resolution of approximately 2,000 pixels), 2K resolution as a general term includes distinct technical standards with differences including resolution and aspect ratio.

480p is the shorthand name for a family of video display resolutions.

The p stands for progressive scan, i.e. non-interlaced.

The 480 denotes a vertical resolution of 480 pixels, usually with a horizontal resolution of 640 pixels and aspect ratio (640) or a horizontal resolution of 854 (848 should be used for mod16 compatibility) pixels for an approximate (853).

Since a pixel count must be a whole number, in Wide VGA displays it is generally rounded up to 854 to ensure inclusion of the entire image.

The frames are displayed progressively as opposed to interlaced.

480p was used for many early plasma televisions.

Standard definition has always been a 4:3 aspect ratio with a pixel resolution of at 60 Hz for NTSC regions, and 720 or for PAL regions (1024 wide for widescreen displays).

However, standard definition defines a 15.7k Hz horizontal scanrate, which means that interlacing has to be used for those resolution modes.

The lowercase letter "p" in 480p stands for progressive, so the two must not be confused.

Low-definition television (LDTV) refers to TV systems that have a lower screen resolution than standard-definition television systems.

The term is usually used in reference to digital television, in particular when broadcasting at the same (or similar) resolution as low-definition analog television systems.

Mobile DTV systems usually transmit in low definition, as do all slow-scan television systems.

An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current).

It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude (magnitude of the voltage or current) of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output.

The amount of amplification provided by an amplifier is measured by its gain: the ratio of output voltage, current, or power to input.

An amplifier is defined as a circuit that has a power gain greater than one.