Multipoint Videoconference Using 4Cif Mode; Relation Between 4Cif Broadcast Mode And Video Format - Sony PCS-G50 System Integration Manual

1-10. Multipoint Videoconference using 4CIF Mode

During a multipoint videoconference, a 4CIF image can be received by sub-terminals without installing the MCU software.
m
. All the broadcast modes do not support the 4CIF mode.
. A 4CIF image cannot be received when PCS-1, PCS-11, PCS-TL30, and/or PCS-TL50 is used as sub-terminals.
. An other company's endpoint that has a 4CIF reception capability is partially restricted in function when it is used as a
sub-terminal.
. When NTSC and PAL models are connected in the multipoint videoconference, some of functions are restricted.

1-10-1. Relation between 4CIF broadcast mode and video format

The broadcast mode of a multipoint conference and the video format used for display at each terminal are as shown in the
table below.
Broadcast mode
Split mode
Split position (fixed) mode
Voice Activate mode Broadcaster Main terminal
Broadcast mode
Note 1:
The figure below shows the example of a six-screen mosaic. A four-screen mosaic is also the same as shown below.
n
As long as a sub-terminal has a 4CIF reception capability, it can receive the 4CIF mosaic even it is an other company's
endpoint.
Even when NTSC and PAL models are connected, a sub-terminal can receive the 4CIF mosaic.
CIF
4CIF
4CIF
1-50
Main terminal screen
Mosaic (4CIF)
Mosaic (4CIF) or
Full screen (CIF)
Sub-terminal Full screen (CIF)
4CIF
4CIF
Sub-terminal screen
Mosaic (4CIF)
Full screen (4CIF)
Broadcaster: Full screen (CIF) or
Mosaic (4CIF)
Except broadcaster: Full screen (CIF)
4CIF
Main terminal
Sub-terminals
4CIF
4CIF
Remarks
Note 1
Note 2
Note 3
PCS-G70/G70P/G50/G50P