ARIB Displays
The decoded anc
illary data includes the following:
DID - Data Identifier of the requested inter-stationary c ontrol packet; can be
any of the foll
owing:
ARIB specification - 0x5F
ITU Specification - 0x43
Type - Type of the ANC Data packet. For ARIB B.39, this is always a Type 2
packet (DID less than 0x80), as defined by SMPTE 291M. The actual value
(with parity bits added) is displayed in parentheses.
SDID - Secondary Data Identifier of the requested interstationary control
packet; can be any of the following:
ARIB specification - 0xFE
ITU Specification - 0x01
Line - The line of the video (within the field) from which the packet was
acquired.
Stream - For HD (SMPTE 292M), indicates whether the ancillary packet was
acquired from the Y or C data streams. For SD, N/A is displayed.
Status - Indicates whether packet(s) of the desired type are present in the
video; also indicates Checksum or CRC errors.
Checksum - Indicates the checksum word that was recovered from the
acquired packet.
Should be - Indicates the checksum word computed by the instrument, based
on the packet data.
Format - Indicates the name of the ancillary data type or standard.
Inter-Station Ctrl Header - A header byte indicating packet continuity, and the
presence or absence of the error correcting code.
Transmitting Station Code - The name of the transmitting station. The
instrument supports the display of Japanese characters.
Transmitting Station Time - The broadcast time at the transmitting station.
Current Video Mode - The video format of the current program.
Next Video Mode - The video format of the next scheduled programming.
Video Mode Countdown - A countdown timer indicating an upcoming change
in video mode, which counts down from 254 (0xFE). A value of 0xFF
indicates that no format change is pending within the next several seconds.
Current Downmix/Audio Mode - Indicates the audio downmix and soundstage
configuration of the current program.
128 WFM8200 and WFM8300 Waveform Monitors
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