On Feb 12, 2016, at 7:32 PM, Manfredi, Albert E
Very recently, I made the point that I would wait for 4K TV until certain
standards and interfaces had been worked out. Among these was the dynamic
range (contrast) enhancement algorithm (HDR). And your reply then was, just
another excuse for people to demand royalty payments, or words to that effect.
On 1/28 you wrote:
On the 4K issue, Craig, you seem to be doing one of your habitual about
faces. Used to be that HDTVs were only good because they could oversample DVD
content, remember? Transmitting in HD was supposed to be a waste, you
insisted. Oversampling was supposedly all the rage.
By extension, you should think that 4K TVs are already useful, because they
allow oversampling of HD content. With screens getting up into the 60"-80"+
range, this may not be so useless.
And it still is important. It allows the shaped transitions required for
Nyquist video filtering to add detail. But there are still IP battles to set
the standards for the most important advancements surrounding 4K - extended
dynamic range and improved color gamut. As many articles are saying, it is
premature to buy a 4K display until these standards are set, and implemented.
And I have repeatedly said that the most important driver of 4K will be
content that is NOT Nyquist filtered - the Lingua Franca of the web and
computer displays. It should be obvious that more samples helps to reduce
aliasing in unfiltered graphics and text. It's the difference between a 72
dpi dot matrix printer and a 300 dpi laser printer.
That is why our smart phones and tablets have increased display resolution -
not to support HD on a five inch screen. The same will be true for large 4K
displays that are increasingly being used to deliver unfiltered content. But
here too, the extended dynamic range and color gamut will be a major step
forward, especially as it relates to the faithful reproduction of still
images and graphics used to support e-commerce.
Now that someone suggested perhaps Apple could play in this role, and btw why
not Philips and all the rest, suddenly this becomes "interesting."
Exactly. That's what Dolby does Bert. They invent critical
technologies then license them.
I know perfectly well how intellectual property works, Craig, and I have
never had anything negative to say about it. But you have had, on multiple
occasions, including on this very topic of HDR. My question is how come
suddenly this has become "interesting."
Far more interesting - without the FCC mandate on ATSC tuners, the
VSB patents would have been of little value.
Perhaps, because other techniques such as COFDM became available after 8-VSB.
But the same can be said in this example. Several organizations are working
in this contrast enhancement field, and the patents of the losers will also
not be worth much. The winner(s) will be the only ones to benefit. Nothing
new, Craig. Just because the author likes Apple does not make this potential
role any more interesting .
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