Filter
Top Products
Glossary
DVI
Digital Visual Interface is a display interface developed in response to the proliferation of digital flat panel displays.
The digital video connectivity standard that was developed by DDWG (Digital Display Work Group). This connection standard offers
two different connectors: one with 24 pins that handles digital video signals only, and one with 29 pins that handles both digital
and analog video. This standard uses TMDS (Transition Minimized Differential Signal) from Silicon Image and DDC (Display Data
Channel) from VESA (Video Electronics Standards Association).
DVI can be single or dual link.
EBU
European Broadcasting Union. An organization of European broadcasters that, among other activities, produces technical state-
ments and recommendations for the 625/50 line television system.
Gamma
The transfer characteristics of most cameras and displays are nonlinear. For a display, a small change in amplitude when the signal
level is small produces a change in the display brightness level, but the same change in amplitude at a high level will not produce
the same magnitude of brightness change. This nonlinearity is known as gamma.
Luminance
The component of a video signal that includes information about its brightness.
NTSC
National television system committee. The organization that developed the analog television standard currently in use in the U.S.,
Canada, and Japan. Now generally used to refer to that standard. The NTSC standard combines blue, red, and green signals
modulated as an AM signal with an FM signal for audio.
OSD
On screen display
PAL
Phase alternate line. The television broadcast standard throughout Europe (except in France and Eastern Europe, where SECAM
is the standard). This standard broadcasts 625 lines of resolution, nearly 20 percent more than the U.S. standard, NTSC, of 525.
Progressive scan
A video scanning system that displays all lines of a frame in one pass.
Projector address
Address installed in the projector to be individually controlled.
RS232
An Electronic Industries Association (EIA) serial digital interface standard specifying the characteristics of the communication path
between two devices using either DB-9 or DB-25 connectors. This standard is used for relatively short-range communications and
does not specify balanced control lines. RS-232 is a serial control standard with a set number of conductors, data rate, word length
and type of connector to be used. The standard specifies component connection standards with regard to computer interface. It is
also called RS-232-C, which is the third version of the RS-232 standard, and is functionally identical to the CCITT V.24 standard.
Logical ’0’ is > + 3V, Logical ’1’ is < - 3V. The range between -3V and +3V is a the transition zone.
RS422
An EIA serial digital interface standard that specifies the electrical characteristics of balanced (differential) voltage, digital interface
circuits. This standard is usable over longer distances than RS-232. This signal governs the asynchronous transmission of computer
data at speeds of up to 920,000 bits per second. It is also used as the serial port standard for Macintosh computers. When the
difference between the 2 lines is < - 0.2V that equals with a logical ’0’. When the difference is > +0.2V that equals to a logical ’1’..
SECAM
Sequential couleur avec mémoire. The television broadcast standard in France, the Middle East, and most of Eastern Europe,
SECAM provides for sequential color transmission and storage in the receiver. The signals used to transmit the color are not trans-
mitted simultaneously but sequentially line for line. SECAM processes 625 lines, a maximum of 833 pixels per line and 50 Hz picture
frequency. SECAM is used as a transmission standard and not a production standard (PAL is typically used).
84
R5976763 CINEVERSUM 60/70 22042004