- Quadrant Tech. (Shenzhen) Co. Ltd. DVD Player User Manual

User’s Guide CineMaster 47

Interlace –

The process of repeatedly displaying (scanning) all the lines in an

odd field followed by displaying all the lines in an even field. Interlacing

became part of video technology because early video equipment and televisions

could not operate at high enough frequencies to scan every line on the display

fast enough to produce a good quality image. It became so common that it has

been adopted as a standard part of the video industry. See also: Field, Frame,

De-interlace.

Luminance –

The portion of the video signal that contains information on the

relative brightness content of the image. The luminance channel of any video

signal is the primary waveform encoded on the carrier signal. Traditional black-

and-white televisions uses only a luminance channel (as a variable phase

subcarrier). In S-video, the luminance signal (Y) is maintained as a separate

channel.

Macrovision –

A method for copy-protecting analog video outputs, developed

by Macrovision Corporation. The DVD specification requires that this anti-

taping mechanism be implemented on the S-video and Composite video

outputs to prevent piracy or videotaping of copyrighted material. The copy

protection operates by modifying the sync signal in such a way that VCRs are

adversely affected (causing them to record an unwatchable image) but that

display monitors and televisions are not.

MCI –

A Microsoft standard method for applications to use for accessing

multimedia functions (such as video or audio playback, volume control, etc.).

MCI Commands are fully supported in the

CineMaster

driver, allowing

applications developers to take advantage of the board’s capabilities without

needing to write device drivers or other hardware-dependent code.

MPEG –

The Moving Picture Experts Group. MPEG is a working group of

ISO/IEC in charge of the development of international standards for

compression, decompression, processing, and representation of moving

pictures, audio and their combination.