Glossary

Vocabulary that holds the terms for the vocabulary.

n
Negative Gain Screensearch for term

Material that reflects less light than a reference material. Often used for DLP and LCD projection systems.

Noisesearch for term

An unwanted portion of a signal such as hiss, hum, whine, static, or buzzing.

NTSCsearch for term

NTSC.) Of the 525 scan lines, 480 (give or take a few) contain the picture and the rest contain synchronizing information, hold the encoded closed caption text, and provide a time delay to move the electron beam back to the top of the screen. NTSC is used mainly in North America and Japan. Originally 30 frames per second, the standard was changed slightly to 29.97 frames per second at the time color was introduced since that change made it easier to incorporate the color information into what is now a composite video signal.