Using the ARIB Di
splays
Checksum - Indicates the checksum word that was recovered from the acquired packet.
Should be - Indicates the checksum work computed by the instrument, based on the packet’s data.
Format - Indicates the name of the ancillary data type or standard.
User Data Words - Contains the payload of the ancilla
ry packet, displayed i n hexadecimal. All 10 bits are displayed.
ARIB TR-B.22 Display and Sta
tus Screens
The ARIB TR-B.22 display shows the decoded data for video signals using ancillary data compliant with ARIB TR-B .22.
(See Figure 10.) When this display is selected, the instrument searches the signal for ARIB TR-B.22 packets using the
DID/SDID combinations defined by ARIB.
Figure 10: ARIB TR-B.22 display (with the associated ARIB Status display)
The decoded ancillary data includes the following:
DID - Data Identifier of the requested packet; permissible values range from 1 to 0xFF (255) inclusive.
Type - Type of the ANC Data packet. For ARIB T R-B.22, this is always a Type 2 packet (DID less than 0x80), as defined
by SMPTE 291M. T he actual value ( with parity bits added) is displayed in parentheses.
Waveform Rasterizers Quick Start User Manual 83
To Next Page
Loading...
Need help?
General
