© National Instruments Corporation G-1 NI PCI-1410 User Manual
Glossary

A

A/D Analog-to-digital.
ADC Analog-to-digital converter. An electronic device, often an integrated
circuit, that converts an analog voltage to a digital value.
address Value that identifies a specific location (or series of locations) in memory.
antichrominance filter Removes the color information from the video signal.
ASIC Application-Specific Integrated Circuit. A proprietary semiconductor
component designed and manufactured to perform a set of specific
functions for specific customer needs.
aspect ratio The ratio of a picture or image’s width to its height.

B

buffer Temporary storage for acquired data.
bus A group of conductors that interconnect individual circuitry in a computer,
such as the PCI bus; typically the expansion vehicle to which I/O or other
devices are connected.

C

CCIR Comite Consultatif International des Radiocommunications. A committee
that developed standards for video signals. Also used to describe signals,
boards, and cameras that adhere to the CCIR standards.
chroma The color information in a video signal.
chrominance See chroma.
CSYNC Composite synchronization signal. Signals in a color video system that
multiplex all picture information into a single signal, such as NTSC, PAL,
or SECAM.