Unspecified Areas - Pioneer HD-V9000 Technical Manual

6.6 Unspecified Areas

When PL commands are issued simultaneously after completing a search during synchronized play,
the frames of the playback video may not be aligned (shifted by 1 frame) depending on the timing
of the command (CR send). (This is called an unspecified area.)
To prevent this from occurring, avoid issuing PL commands in the unspecified areas below.
Unspecified area for 480i, 576i, 1080i
After the PL command is received, the video is started at the 1000 msec + 3
The unspecified area is the period of the 2
within this unspecified area, the video start is unspecified.
232C PLAY
command
ExtSync
Field condition
Unspecified area for 1280*720p@50/59.94
After the PL command is received, the video is started at the 1000 msec + 3
As shown in the figure below, the 5-msec period after the frame is started is a specified area,
and the 11.6-msec period that follows is an unspecified area. If the PL command end <CR> is
received within this unspecified area, the video start is unspecified.
232C
PLAY command
Ext Sync
Field Condition
1 st field
2 nd field
Unspecified are
1 Frame (16.6 msec)
Specified Area
Unspecified Area
5.0msec
11.6msec
17
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HD-V9000 Technical Manual Ver. 1.00
nd
field. If the PL command end <CR> is received
1000msec+3 Frame
1000msec+3 Frame
-
rd
frame location.
Playback start
rd
frame location.
Playback start