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White Papers
DPL Testing to Determine HDMI Dynamic Headroom
Testing will measure how far over and above the minimum compliance level HDMI products will reach.
By now, you may have either heard or read about the digital testing service for HDMI that will enter into our lives. Yep, it is called DPL (Digital Performance Level) rating.
The program was put together in an effort to minimize the HDMI problems that have been so prevalent in the field. DPL is designed to take the guess work out of deciding what product is better than what and for how much.
Initially, DPL will be testing products associated with cables and connections used in conjunction with the overall system. The need to understand how these products compare in integrity to one another has become extremely important as this technology continues to explode.
This is not to say that HDMI compliance testing isn't doing the job. Far from it. It is just a different technique to see how far over and above the minimums each product reaches. I call it the HDMI Dynamic Headroom.
This will allow for a justifiable product selection, eliminating the F.U.D. -- fear, uncertainty and doubt -- from all you people out there on the front lines.
Systems should not have to live on the edge of being cut off. DPL will provide a mechanism to push the data into a safe and reliable operating space.
Failures like intermittent or no audio, no picture, pink screens and sparkles, which are accumulative in nature, will diminish as the Dynamic Headroom is improved.
The program will allow each and every user the ability to decide for themselves the performance level they need or require.
The program was put together in an effort to minimize the HDMI problems that have been so prevalent in the field. DPL is designed to take the guess work out of deciding what product is better than what and for how much.
Initially, DPL will be testing products associated with cables and connections used in conjunction with the overall system. The need to understand how these products compare in integrity to one another has become extremely important as this technology continues to explode.
This is not to say that HDMI compliance testing isn't doing the job. Far from it. It is just a different technique to see how far over and above the minimums each product reaches. I call it the HDMI Dynamic Headroom.
This will allow for a justifiable product selection, eliminating the F.U.D. -- fear, uncertainty and doubt -- from all you people out there on the front lines.
Systems should not have to live on the edge of being cut off. DPL will provide a mechanism to push the data into a safe and reliable operating space.
Failures like intermittent or no audio, no picture, pink screens and sparkles, which are accumulative in nature, will diminish as the Dynamic Headroom is improved.
The program will allow each and every user the ability to decide for themselves the performance level they need or require.
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About the Author
Jeff Boccaccio, President, DPL Labs
Jeff Boccaccio, president of DPL Labs, can be reached at either jeff@invisionstech.com or jeff@dplrating.org.
6 Comments (displayed in order by date/time)
As an engineer this makes no sense. Therefore it is a marketing ploy. Why not rate Ethernet cables too?
Aren’t cat.5, cat.5e & cat.6 ratings???
If anyone were to research the tests that will be performed they would understand that the focus is on how the device performs over and above the HDMI minimums. Eye mask margin differentials, DDC integrity both with eye patterns and I2C dynamics just to name a few. For me, along with many other CI’s, retailers and my customers this is what OUR INDUSTRY NEEDS! I would rather install products that are well into the black with integrity rather than being on the edge. That way even if other parts of the interface are on the edge, I more than likely will not have to return to the scene to either repair or replace. Anyway, thats my two cents.
yes dan, they are. it’s pretty obvious that someone here has only dealt with a handful of low level systems if they haven’t run into the typical aforementioned headaches. bring on the testing, and let’s get a few standards established instead of hitting a moving target.
http://WWW.DPLRating.org for the most recent results of all the testing including white papers, definitions of the rating system, seminars, etc
Page 1 of 1 comment pages
This is excellent and Long overdue. Finally we will be able to sell HDMI to your customers with confidence.