Hidden Signals: Not Always Transferred
TV contains many hidden signals. One signal type that is not transferred, except on some very expensive converters, is the closed captioning signal.
Teletext signals do not need to be transferred, but the captioning data stream should be if it is technologically possible to do so.
With HDTV broadcasting, this is less of an issue, for the most part meaning only passing the captioning datastream on to the new source material. However, DVB and ATSC have significantly different captioning datastream types.
Read more about this topic: Television Standards Conversion
Famous quotes containing the words hidden and/or transferred:
“The human face is a weak guarantee; yet it deserves some consideration. And if I had to whip the wicked, I would do so more severely to those who belied and betrayed the promises that nature had implanted on their brows; I would punish malice more harshly when it was hidden under a kindly appearance.”
—Michel de Montaigne (1533–1592)
“Modern thought has transferred the spectral character of Death to the notion of time itself. Time has become Death triumphant over all.”
—John Berger (b. 1926)