Glossary
PCI/PXI-1408 and NI-IMAQ for Win95/NT
G-12
©
National Instruments Corporation
ROM
read-only memory
RS-170
the U.S. standard used for black-and-white television
RTSI bus
Real-Time System Integration Bus—the National Instruments
timing bus that connects IMAQ and DAQ boards directly, by
means of connectors on top of the boards, for precise
synchronization of functions
S
s
seconds
saturation
the richness of a color. A saturation of zero corresponds to no
color, that is, a gray pixel. Pink is a red with low saturation.
scaling down circuitry
circuitry that scales down the resolution of a video signal
scatter-gather DMA
a type of DMA that allows the DMA controller to reconfigure
on-the-fly
SRAM
static RAM
StillColor
a post-processing algorithm that allows the acquisition of
high-quality color images generated either by an RGB or
composite (NTSC or PAL) camera using a monochrome video
acquisition board.
sync
tells the display where to put a video picture; the horizontal sync
indicates the picture’s left-to-right placement and the vertical
sync indicates top-to-bottom placement
syntax
the set of rules to which statements must conform in a particular
programming language
system RAM
RAM installed on a personal computer and used by the operating
system, as contrasted with onboard RAM
T
transfer rate
the rate, measured in bytes/s, at which data is moved from source
to destination after software initialization and set up operations;
the maximum rate at which the hardware can operate
