Display Information
Elements of the Picture
Display
In full-screen
mode, there is no cropping. Pictures a re decimated horizontally or
vertically to obtain the correct aspect ratio. This decimation may cause some
artifacts. This behavior may be evident o n a sweep signal. Also see the online
help for the Picture Aspect Ratio for related information. Display can be set to
include Closed Captioning text or Teletext subtitles overlaid on the picture.
The VChip, CC-Display, Teletext, and Safe Area Graticule are described below:
(See Figure 48.)
1. VChip Area: Displays detected VChip ratings from any o f these systems:
MPAA (US), TV (US), Canadian English, and Canadian French. VChip
information is labeled CA (Content Advisory).
2. Safe Graticules: SMPTE, BBC, and ARIB B-4 standards for safe area
graticules allow for selection of up to two Safe Area and two Safe Title
graticu
les. Custom graticules with adjustable areas can also be specified.
3. Closed Caption Text and Teletext Area: Displays closed captioning or
Telete
xt, configurable to decode to the following Closed Caption and Teletext
standards.
For Co
mposite: CEA-608-line-21 (VBI), TeletextB VBI (PAL)
For SD: CEA-608-line-21, TeletextB VBI (625), CEA-608 (ANC),
CEA-6
08 (708), CEA-708, TeletextB VBI, TeletextB OP47 SDP (ANC),
and TeletextB OP47 Multi (ANC)
For H
D and 3G: CEA-608 (ANC), CEA-608 (708), CEA-708, TeletextB
VBI, TeletextB OP47 SDP (ANC), and TeletextB OP47 Multi (ANC)
Figure 48: VChip, CC-Display, Teletext, and Safe Area Graticule in Picture display
WFM8200 and WFM8300 Waveform Monitors 87
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