"M.T. Carrasco Benitez" wrote on 1998-10-13 13:39 UTC:
> Looking for information on the character sets
> used by "TV teletext" and in particular a
> mapping to Unicode.
I thought, TV teletext character sets were considered to be outside the scope
of Unicode, as their numerous colorful block graphic characters are a very
specialized application, and especially the block graphics characters make
only sense together with color control commands since much of the displayed
information is encoded in the color. However I am sure someone will put
them one day in plane 1 or so.
Which country? There are a number of different teletext and videotext
standards around. One standard is ITU-T Recommendation T.101/T.107
<http://www/itu/ch/>, another is NAPLPS (CSA T 500-1983).
Code tables can also be found in the Web data sheets of various consumer
electronics semiconductor manufacturers such as Phillips and Siemens, e.g.
http://www.siemens.de/semiconductor/products/ics/32/3219.htm
http://www.siemens.de/semiconductor/products/ics/32/pdf/mega1_09.pdf
(page 35-36)
Interesting side note: In this teletext code table, you will find at
position 0x156 in WST G2 the mysterious U+20A0 EURO-CURRENCY SIGN.
This might shed some new light on the genesis of this strange character.
Markus
-- Markus G. Kuhn, Security Group, Computer Lab, Cambridge University, UK email: mkuhn at acm.org, home page: <http://www.cl.cam.ac.uk/~mgk25/>
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