Videonics MXPro, Руководство пользователя

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Glossary Videonics MXPro User Guide
NTSC
N ational T elevision S tandards C ommittee. A body
that defines television standards in the USA. NTSC
is characterized by each frame being composed of
525 horizontal scanning lines per frame, occurring
at 30 frames per second. The format is used in
North America, Central America, Japan, and parts
of South America. (Also see
PAL and SECAM .)
NVRAM
N on- V olatile R andom A ccess M emory. MXPro uses
NVRAM to store unit settings so that they are avail-
able whenever you power up the unit. Normal
(that is, volatile) RAM cannot store information
once the power supply is turned off.
OSD
O n S creen D isplay. A feature available on some
consumer-level VCR’s. When OSD is toggled ON,
the VCR displays its status information on the con-
nected video monitor.
PAL
P hase A lternating L ines. The dominant color tele-
vision format in Western Europe, Australia, most of
Asia, and parts of South America and Africa. PAL is
characterized by each frame being composed of
625 horizontal scanning lines occurring 25 times
per second. (Also see
NTSC and SECAM .)
RCTC
R ewriteable C onsumer T ime C ode (also referred to
as RC ). Commonly available on 8mm and Hi-8 for-
mat devices.
S-Video
A video standard used by camcorders and VCR’s
relative to video signal formats. S-Video separates
the Y (luminance) and C (chroma) signals to
improve signal quality. Also see
Composite
Video .
SECAM
The standard video signal used in France, Eastern
Europe, and parts of Asia and Africa. Also see
NTSC and PAL .
SMPTE
S ociety of M otion P icture and T elevision E ngi-
neers. (Pronounced simp-tee .) This committee of
engineers and manufacturers establishes the most
widely accepted standard for time code. They cre-
ated specifications for two version of time code: LTC
and VITC.
Time Code
A method of putting a unique number or address
on each frame of a videotape. There are several for-
mats of time code. The Society of Motion Picture
and Television Engineers set the most common
time code standard, called SMPTE.
VCR
V ideo C assette R ecorder. A video device normally
used to record and play back video on cassettes.
VCR is a consumer-level term: VCR’s in the profes-
sional field are normally referred to as VTR’s (
V ideo
T ape R ecorders). VCR’s and VTR’s perform the
same functions, although VTR’s usually provide
many additional features and functions.
Video Editing
The process of applying special effects to video
sequences and assembling those sequences into a
video program.
VITC
V ertical I nterval T ime C ode. (Pronounced vit-see .)
An SMPTE-defined standard for time code, recorded
into the video signal during the vertical blanking
interval.
VTR
V ideo T ape R ecorder. Similar to VCR (see above)
except that VTR’s are normally used in the profes-
sional video field and contain enhanced features.
VCR is normally used in conjunction with con-
sumer-level electronics.