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- Newsgroups: comp.compression,rec.video,rec.video.satellite,rec.video.production
- Path: sparky!uunet!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!mcsun!sunic!seunet!enea!tope
- From: tope@enea.se (Tommy Petersson)
- Subject: Re: Compression artifacts in NBC Olympic coverage
- Message-ID: <1992Jul31.135354.25808@enea.se>
- Organization: Enea Data AB
- References: <OJALA.92Jul31130748@dolphin.hut.fi>
- Date: Fri, 31 Jul 1992 13:53:54 GMT
- Lines: 36
-
- ojala@funet.fi (Petri Ojala) writes:
- -
- - > Which HDTV standard is this- Japanese version? I would imagine that is
- - > designed to augment an NTSC signal, so how does it relate to PAL? While I
- - > can see HDTV
- - > worlwide as having the same aspect ratio and number of lines, is there a
- - > worldwide standard for frame rate? And will the only difference in US
- - > digital HDTV be in the brodcast mechanism, not in the actual frames.
- -
- - (Has there been any HDTV broadcasts from Barcelona to Japan or US ?)
- -
- - I have a very short paper about the Barcelona HDTV setup (in Finland) and
- - if I understand it correctly, the transmission from Barcelona is
- - European HDTV, HD-MAC. These transmissions are done by European
- - Vision 1250 production project and the transmissions are sent as
- - European-wide satellite transmission.
- -
- - Accordingly to this paper there is 1250 lines, 50 frames/sec and the
- - broadcasting technology is HD-MAC in the European HDTV while in the
- - Japan they have 1125 lines, 60 frames/sec and MUSE broadcasting.
- -
- - Petri
-
- People hoped that the HDTV would be a world-wide accepted standard, but it
- seems there will be three standards in the beginning (and then the French
- will invent a fourth, only slightly different :-)
-
- One main concern in Europe was to be able to view old PAL broadcasts on
- the new HDTV equipment, which HD-MAC allows (the old backward-compatibility
- crippling).
-
- --
- =============================================================================
- Tommy Petersson tope@enea.se Enea Data AB, Sweden
- =============================================================================
-
-