OmniTek Ultra XR, Руководство пользователя

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A–4 XR-56-201 5 Glossary 03/18
Glossary
BNC Bayonet Neill-Concelman. This connector comes in 2 generic forms 50Ω
(typically used in radio) and 75Ω (typically used in broadcast video). There
are variants for SD-SDI, HD-SDI, 3G-SDI and 12G-SDI signals.
Cam. Pos S315 SMPTE 315M defined camera position data in HANC and VANC spaces.
Caption 708 EIA 708 standard defining closed caption data for HD-SDI in VANC space.
Caption 608 EIA 608 standard defined closed caption data for SD SDI 525i (NTSC) in
VANC space.
CIE International Commission on Illumination (French Commission
internationale de l'éclairage)
CPU Central Processor Unit
CRC (cyclic redundancy check) is an error-detecting code commonly used in
digital networks and storage devices to detect accidental changes to raw
data. At transmission, data blocks are given a short check value based on
the remainder of a polynomial division of their contents at the receiver
the calculation is repeated, and corrective action can be taken against
presumed data corruption when the check values differ.
DCI Digital Cinema Initiative, SMPTE RP 431
DBN (Data Block Number) is a data word within the ANC Data. See DID for
more information.
DID (Data Identifier) – is the first data word with in the ANC Data that defines
the type of data contained within the packet. This word is followed by
either a Secondary Data Identifier (SDID) or a Data Block Number (DBN),
followed by a Data Count (DC). After the Data Count word are 0 - 255
(inclusive) User Data Words (UDW), followed by a Checksum (CS) word.
DL Dual Link
Dual Link Is where the video image is split over 2 physical links. For example for
stereo image processing, high bit depth or RGB colour space.
DisplayPort Graphics display interface.
DisplayPort 1.3 refers to the 32.4 Gbit/s interface developed by the Video Electronics
Standards Association (VESA) as a replacement for VGA, DVI and FPD-Link.
This allows support for 2 x 4K/UHDTV1 images.
DVI Digital Visual Interface
EDH (Error Detection and Handling) protocol is an optional but commonly used
addition to the Standard Definition-Serial Digital Interface (SDI) standard.
This protocol allows an SD-SDI receiver to verify that each field of video is
received correctly.
EDH RP165 SMPTE RP165-EDH packet containing EDH (error data handling) and CRC
(cyclic redundancy counts) which only appears on SD-SDI signals.
EOTF Electro-optical Transfer Function
Film RP215 SMPTE RP215 defined data packet for film codes in VANC space.
FPGA a field-programmable gate array is an integrated circuit designed to be
configured by the customer or designer after manufacturing.