PC2-Comp Express
Glossary of Terms
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Low Pass Filter
A filter that blocks high frequencies and allows lower frequencies to pass through. Used to
limit undesirable analog information (such as high frequency video noise) before converting
to digital data.
NTSC
National Television Systems Committee. Color TV standard used in North America and other
countries. The interlaced video signal is composed of a total of 525 video lines at a frame rate
of 30 Hz.
Opto-Coupler
An electronics device that couples an electrical connection by a light beam. It prevents
damage caused from inherent electrical signal problems, like power surges.
PAL
Phase Alteration by Line. Color TV standard used in most of Europe and other countries. The
interlaced video signal is composed of a total of 625 video lines at a frame rate of 25 Hz.
PCI
Peripheral Component Interconnect. The PCI local bus is a 32-bit high performance
expansion bus intended for interconnecting add-in boards, controllers, and processor/memory
systems.
PCIe
PCI Express.
PCI Express provides a high-speed, switched architecture. Each PCI Express
link is a serial communications channel made up of two differential wire pairs that provide 2.5
Gbits/sec in each direction. Up to 32 of these "lanes" may be combined in x2, x4, x8, x16 and
x32 configurations, creating a parallel interface of independently controlled serial links.
Pixel
A contraction of "picture element". The number of pixels describes the number of digital
samples taken of the analog video signal. The number of pixels per video line by the number
of active video lines describes the acquisition image resolution. The binary size of each pixel
(for example, 8-bits, 15-bits, 24-bits) defines the number of gray levels or colors possible for
each pixel.
PLL
Short for phase-locked loop. A PLL ensures that a signal is locked on a specific frequency.
Progressive Scan Camera
The progressive scan format outputs data from the camera (the signal) in sequential order as it
is scanned. The scan format produces a full frame of video in a continuous stream, rather than
half the image per output sequence in standard interlaced cameras.
Summary of Contents for PC2-Comp Express OC-P2EM-COMP0
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Page 38: ...32 Theory of Operation PC2 Comp Express ...
Page 46: ...40 Technical Reference PC2 Comp Express ...
Page 64: ...58 Sapera LT PC2 Comp Express ...
Page 65: ...PC2 Comp Express Sapera LT 59 EMI Certifications Class A both FCC and EC ...
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