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Glossary
Appendix
between the camera’s scanning and
the lighting conditions.
GENLOCK
A state in which devices are locked to
a signal output by a sync generator.
Genlock allows multiple devices to
operate in synchronization.
HDSDI signal
Abbreviation for High Definition
Serial Digital Interface.
This is an uncompressed digital
component video signal as specified
by SMPTE 292M.
Horizontal resolution
The horizontal resolution of the
screen, which is expressed as the
number of vertical lines
distinguishable when shooting a test
chart.
Hunting
Repeated brightening and darkening
of an image resulting from repeated
response to automatic iris control.
i.LINK
Another name for the IEEE1394-
1995 standards and their revisions.
On devices from other
manufacturers, the (i.LINK) DV
OUT S400 connector may be called a
“FireWire port”, or indicated as IEEE
1394 or DV IN/OUT. XDCAM HD
uses the i.LINK interface to transfer
DV streams by the AV/C protocol,
and toread and write MPEG IMX and
DVCAM data files by FAM (File
Access Mode).
Interlaced scan mode
A scanning method in which odd
rows fields are read alternately with
even rows. (Odd-row fields and even-
row fields contain images from
different times.)
IRE scale
International Radio Engineers scale.
A scale of values that defines the
brightness level of a video signal.
The IRE is now the IEEE (Institute of
Electrical and Electronic Engineers).
Metadata
Information about the properties of
video and audio content. XDCAM
records metadata such as UMIDs and
essence marks, and the supplied
PDZ-1 Proxy Browsing Software can
be used to record information such as
titles and comments.
MXF
Material eXchange Format. A file
exchange format developed by the
Pro-MPEG Forum. Equipment from
different manufacturers can
exchange files in this format.
ND filter
ND is an abbreviation of Neutral
Density. An optical filter that reduces
the incident light uniformly across
the whole wavelength range, without
affecting the color rendering of the
subject.
Non-drop-frame mode
A mode of advancing timecode
which ignores the difference in frame
values between real time and the
timecode. Using this mode produces
a difference of approximately 86
seconds per day between real time
and timecode, which causes
problems when editing programs in
units of seconds using the number of
frames as a reference.
Non-audio
General term for audio signals other
than linear PCM, such as Dolby E
and Dolby Digital (AC-3).
1)
XDCAM can record non-audio as an
input signal.
1) Dolby is a trademark of Dolby Laboratories.
NTSC
Abbreviation for National Television
System Committee. NTSC is a color
TV broadcasting system adopted
mainly in North American countries,
and in parts of Asia and Central and
South America.
PAL
Abbreviation for Phase Alternating
Line. PAL is a color TV broadcasting
system developed by Telefunken
GmbH of Germany. This system is
adopted mainly in European
countries, in Australia, and in parts of
Asia and South America.
Progressive scan mode
A scanning method in which odd
rows and even rows are read at the
same time. Also called full-screen
scanning.
Proxy AV data
Low-resolution data with a video
bandwidth of 1.5 Mbps and an audio
bandwidth of 64 kbps per channel.
This unit records proxy AV data
automatically whenever high-
resolution MPEG HD or DVCAM
data is recorded.
Reference video signal
A video signal that contains a sync
signal or sync and burst signals, used
as a reference for synchronization of
video equipment.
Return video
Video signals that are sent back from
a VTR to a camera or from a control
console to a camera so that a camera
operator can verify the recorded/
selected video signals.
Sampling frequency
A method used to sample an analog
signal so that it can be represented
digitally. The higher the sampling
frequency is, the more accurately the
high-frequency analog signal can be
represented.
SDSDI signal
Standard Definition Serial Digital
Interface. An interface standardized
as SMPTE 259M which enables the
transmission of an uncompressed
digital component stream.
Shot data
Data recorded, while shooting, in the
color bars, the user bits data of VITC,
and so forth. Includes the model
name, serial number, date, time, shot
number, and ID1 to ID4.
Shutter speed
The time that the shutter is open.
Slow shutter speeds give bright
images, but motion resolution is
lower.
SMPTE
Society of Motion Picture and
Television Engineers, a professional
association established in the U.S.A.
mainly for the purpose of setting
forth motion picture and television
engineering standards.