InFocus Genesis P130 Manual De Instrucciones página 72

Glosario de términos
Term Description
Projector A projector is a device that integrates a light source, an optics
system, electronics and display(s) for the purpose of projecting an
image from a computer or video device onto a wall or screen for
large image viewing. These devices attach to a computer or video
device as you would connect a monitor or television.
QXGA QXGA is a display resolution of 2048 horizontal pixels by 1536
vertical pixels giving a total display resolution of 3,145,728 pixels. A
QXGA display has 4 times the resolution of an XGA display.
RCA Jacks Unbalanced connection used extensively in consumer electronics to
send a line-level signal. Also called phono.
Refresh Rate The speed at which a display updates its picture given in Hz.
Resolution A measure of the ability of a display or sound system to render detail.
RGB Red, Green and Blue. A component signal representing each colour
separately. Sync signals can be sent on green or sent separately as a
composite signal or dual H/V signals (Horizontal sync/Vertical sync).
Very common signal for analog computer displays.
RGB out An output on the projector that allows you to connect additional
monitors or projectors to display the same image. Also known as
monitor loop-through or VGA out.
RS232 The RS232 port on a projector is typically used to connect an
external control device like a wall plate controller or integrated
whole room control system to your projector for turning it on and off
remotely or changing the source input. The port is usually a male 9-pin
D-sub connector.
S-Video A video transmission standard that uses a 4 pin mini-DIN
connector to send video information on two signal wires called
luminance(brightness, Y) and chrominance (colour, C). S-Video is
also referred to as Y/C. Considered a higher quality video source
than composite video.
S/PDIF Sony/Philips Digital Interface. A transport protocol related to AES/
EBU for sending PCM digital audio signals between devices. Uses
either 75-Ohm coaxial cable or fiber-optic cable.
Sampling The speed at which data representations of an analog signal are
Frequency duplicated. The higher the number, the better the quality. Another
quality aspect is the granularity of the scale used for representation
where 16 bits allows 65536 discrete levels and 24 bits allows about
17 million.
Saturation Saturation is a measure of colour intensity. In the absence of
saturation the colour hue is a shade of grey. A highly saturated hue
has a vivid, intense colour, while a less saturated hue appears more
muted and grey.
Scan Rate The line drawing speed of a display, usually given in kHz. A standard
definition TV has a scan rate of 15.75 kHz which when you divide by
525 scan lines, gives a horizontal refresh rate of 30 fps or Hz.
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