certain types of noise inherent to CCDs. See also CCD.
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. XDCAM uses the i.LINK interface to transfer DV streams by the AV/C protocol, and to read and write MPEG IMX and DVCAM data files by FAM (File Access Mode).
Interlaced scan mode (CCD output)
A scanning method in which odd rows fields are read alternately with even rows.
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
MXF
Material eXchange Format. A file exchange format developed by the
ND filter
Neutral Density filter. ND filters reduce the amount of incident light equally across the entire visible wavelength range without affecting color.
General term for audio signals other than linear PCM, such as Dolby E and Dolby Digital
XDCAM can record
1) Dolby is a trademark of Dolby Laboratories.
A mode of advancing time code which ignores the difference in frame values between real time and the time code. Using this mode produces a difference of approximately 86 seconds per day between real time and time code, which causes problems when editing programs in units of seconds using the number of frames as a reference.
Progressive scan mode (CCD output)
A scanning method in which odd rows and even rows are read at the same time. Also called
Proxy AV data
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
A video signal returned to a camera from a VTR, or a video signal selected from among several camera angles in a control room and returned to a camera so the cameraman can check the video.
SDI
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.
S/N
SNMP
Simple Network Management Protocol. XDCAM uses this protocol to monitor equipment operating status via network connectors.
Sub clip
One of the sections which make up a clip list. A sub clip may be part of a clip or an entire clip.
Thumbnail image
A reduced still picture of video for display on a GUI screen. XDCAM creates thumbnail images from proxy video, and displays them as index pictures on GUI screens.
Time code
A digitally encoded signal which is recorded with video data to identify each frame of the video by hour, minute, second and frame number. SMPTE time code is applied to NTSC system, and EBU time code to PAL and SECAM systems.
Time code synchronization
To synchronize the
Turbo gain
Video amplifier gain increased from 30 dB by 6 to 18 dB by combining adjacent pixels of the CCD.
Appendixes
Glossary 209