Dane-Elec Memory 802.11 Manuale Utente

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Used to describe the distribution of pixels in a digital 

image. Increasing the aspect ratio of an image lowers 

the efficiency of the use of the pixels. The resulting 

image will have less detail than an image with the

same amount of pixels, but with a lower aspect ratio.

Developed by Microsoft, a multimedia container format 

which contains both audio as well as video data allowing 

Simultaneous playback. 

The range of signal frequencies that a piece of audio or 

video equipment can encode or decode; the difference 

between the limiting frequencies of a continuous 

frequency band. Video uses higher frequency that audio, 

thus requires a wider bandwidth

A picture signal combined with synchronization and

(possibly) color information. It is a composite of three 

source signals called Y, U and V (together referred to as 

YUV).

Created by DivX Inc., a video codec that is able to 

compress large video segments into smaller sizes while

maintaining a high visual quality.

Audio compression technology developed by dolby ®

laboratories.  The technology contains up to 6 channels 

of sound, five channels for normal range speakers, 

which include Right front, Center, Left Front, Right

Rear and Left Rear, as well as one channel for the 

subwoofer.  Mono and Stereo usages are also supported

by this format. 

Technology used by publishers to control access to and 

usage of hardware and digital data, such as software, 

music and movies.

A multi-channel digital surround sound form at that is 

used for theatrical as well as consumer grade 

applications. 

Downmixing allows playback device' to deliver a 5.1 

channel signal to a mono signal. This allows the

traditional 2-CH television to use a 5.1CH audio signal.

Broadcasting of television signals with a significantly

higher resolution than traditional formats, such as PAL or 

NTSC, would allow.

Also known as MPEG-1 Audio Layer 3.  A popular digital 

audio format that was designed to reduce the amount of 

data required to represent audio, without compromising 

the audio quality.

The Moving Picture Experts Group is a working group that 

is responsible for the development of video and encoding

standards.

Adopted by the National Television Systems Committee, 

the analog television system that is currently in use in 

Canada, Japan, South Korea, the United States and some

other countries, mostly in the Americas. 

An audio compression format that is absolutely free, open

and unpatented

The analog (a 625-line / 50 Hz) television system that is 

currently in use in Europe and several countries in Asia.

A method for displaying, storing or transmitting moving

images in which the lines of each frame are drawn in 

sequence. It subjectively increases vertical resolution and

reduces flickering.

Separate video is an analog video signal that carries the

video data as two separate signals. S-Video works in 

480i or 576i resolution.

A file format that contain DVD-Video media.  It includes 

the video, audio, subtitle and the menu contents in a 

streaming format.

Variable Bit Rate means that a bit stream has a 

changing number of bits per second. Simple scenes can 

be assigned a low bit rate, with complex scenes using a 

higher bit rate. This enables maintaining the consistency 

across audio and video quality with optimal file size.

A Microsoft product that is a compressed audio format 

developed to compete with the MP3 audio format.

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