[opendtv] Re: News: CEA FORECASTS CONSUMER ELECTRONICS REVENUE WILL SURPASS $155 BILLION IN 2007
- From: "Dale Kelly" <dalekelly@xxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Thu, 11 Jan 2007 10:52:38 -0800
Thanks. To summarize our NTSC/PAL discussion:
There is little qualitative difference between the NTSC and PAL color
transmission systems; the perceived differences are simply related to
implementation rather than to system capabilities. I.E;
If, in the U.S., the power line frequency was 50Hz rather than 60 Hz, the
channel bandwidth was 8 MHz rather than 6 MHz and the TV set manufacturers
actually passed all color information contained in the NTSC transmission,
there would be very little difference between the image quality of the two
systems.
Conversely, if England began broadcasting NTSC tomorrow, assuming TV set
design was correct, there would again very little difference in displayed
image - assuming post 1970 receiver design is used. Question, how long has
it been since you NTSC users adjusted a hue control (which is now buried in
a menu)?
Dale
-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx]On
Behalf Of flyback1
Sent: Wednesday, January 10, 2007 7:05 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: News: CEA FORECASTS CONSUMER ELECTRONICS REVENUE WILL
SURPASS $155 BILLION IN 2007
As Mark Schubin wrote, the I axis represents the color to which the human
eye is most sensitive.
The time when the ideas concerning quadrature modulation phase angles were
being thought out came a while after the work
by Hazeltine that made color television compatible with exsisting
monochrome receivers.
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