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24
8990ARC Instruction Manual
Configuration
Wide Screen Signaling (WSS)
Wide Screen Signaling (WSS) for 625 systems is also supported on this
module. One of three WSS control modes can be selected: Standard, Modi-
fied, and Custom.
If WSS is enabled, the 8990ARC output conversion mode will be controlled
according to this input data. If Video Index Control is also enabled, the WSS
control, when present, will take precedence as explained in
. WSS coding is passed through to the 8990ARC output unaltered.
WSS Line Selection
According to the industry standard WSS protocol, in 625-line systems the
video input signal can contain video source data on line 23. This module
has been modified to allow the line containing source data to be selected as
any line from 13-27. The module will only search for WSS data on the line
selected by the WSS control on the web page, control panel, or local control.
Standard Wide Screen Signaling
Support for standard WSS mode is based on the EN 300 294 V1.3.2
(1998-04) standard.
shows the setting for the module based on the
output mode selected and the contents of the Group 1 data in the WSS
signal.
Table 7. Standard Wide Screen Signaling
Group 1 Value
(b2, b1, b0)
Aspect Ratio
Label
Position
Selected Output
Format
Resulting Conversion
Mode
Resulting
Tilt/Pan
000
4:3
N/A
4x3
Mode 1: Bypass
Center
16x9
Mode 2: Pillarbox
Center
001
14:9
Center
4x3
Mode 1: Bypass
Center
16x9
Mode 4: 14x9
Center
010
14:9
Top
4x3
Mode 1: Bypass
Center
16x9
Mode 4: 14x9
Top
011
16:9
Center
4x3
Mode 1: Bypass
Center
16x9
Mode 3: Full Width
Center
100
16:9
Top
4x3
Mode 1: Bypass
Center
16x9
Mode 3: Full Width
Top
101
> 16:9
Center
4x3
Mode 1: Bypass
Center
16x9
Mode 3: Full Width
Center
110
14:9
Center
4x3
Mode 1: Bypass
Center
16x9
Mode 4: 14x9
Center
111
16:9
N/A
4x3
Mode 2: Letterbox
Center
16x9
Mode 1: Bypass
Center
Содержание 8990ARC -
Страница 6: ...6 8990ARC Instruction Manual Preface ...
Страница 37: ...8990ARC Instruction Manual 37 Configuration Figure 14 Settings Web Page for 4 3 Output Format ...
Страница 41: ...8990ARC Instruction Manual 41 Configuration Figure 18 8990ARC Slot Config Web Page ...
Страница 52: ...52 8990ARC Instruction Manual Functional Description ...
Страница 56: ...56 8990ARC Instruction Manual Index ...