Appendixes

Glossary

AES/EBU

AES (Audio Engineering Society) and EBU (European Broadcasting Union) standardized for the professional digital audio I/O (IEC-60958 TYPE-1.) It was applied to ANSI (American National Standard Institute) too.

Alarm Log

A record of errors occurred on devices and communication lines.

Ancillary Data

Transmitted kinds of data located in the blanking area of digital video interface (e.g., audio data and time code data.)

ARP (Address Resolution Protocol)

A protocol that is used to acquire the MAC address of the transmission destination of Ethernet frames. This protocol uses an IP address to acquire the MAC address. If the MAC address of the transmission destination of IP packets is unknown, an ARP packet requesting the MAC address is broadcast. The MAC address is acquired using the response to this request.

ARQ (Automatic Repeat Request)

An error correcting method that error packet will be re-transmitted automatically when packet error is detected at the receiver (Decoder.) IP-9500/IP-900 series products have the real-time high error-control ability, equipped with the original “FEC + ARQ hybrid method.”

BISS (Basic Interoperable Scrambling System)

A scrambling system formulated by the EBU in May 2002. This system has 3 modes: MODE 0, MODE 1 and MODE E. In MODE 1, a 12-character (48-bit) session word is used for encryption and decryption. In MODE E, a

IP-900 Series

16-character (64-bit) encrypted session word and 14-character (56-bit) injected ID are used for encryption and decryption. In MODE 0, encryption is not used.

BB (Black Burst)

Sync signal of black level’s video signal which is used to be synchronize

BNC (Bayonet Neill Concelman)

One of the coaxial cable connecters which have the 75ohms impedance. It uses the lock called Bayonet Lock and is very easy and compact to use. It is used for the test gear and the digital audio because it supports up to 4GHz high frequency.

Browser

A generic name for programs that support a user who wants to fetch a desired option from a number of options. Using a browser, the user can trace links on the World Wide Web to access such multimedia information as text, audio, and video by the simple selection of items with a mouse or other pointing device.

Carrier Frequency

Radio wave output frequency of a modulator card. Low-frequency transmission data is overlaid on a high-frequency signal during modulation, and this high-frequency signal is called a carrier wave. The frequency of a carrier wave is called the carrier frequency.

CAT (Conditional Access Table)

An information table to support the limited receiving.

CC (Closed Captioning)

Data for broadcast captioning. It is multiplexed at ancillary data area, virtual or horizontal blanking area of video signal, in HD/SD-SHI signal.

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