JOHN LUFF
Latest articles by JOHN LUFF
MPEG encoding systems
By JOHN LUFF published
There are plenty of misconceptions about compressed video. If you look back in the recent history of our industry much misinformation exists. Twenty years
On-air automation systems
By JOHN LUFF published
The complexity of modern broadcast operations exceeds what a person could be reasonably expected to accomplish by manual action alone.
The centralcast model
By JOHN LUFF published
Centralized operations are not always the most successful and economically viable because either the labor saved is not sufficient or the interconnection cost is too high.
Lens technology
By JOHN LUFF published
Lens technology may be the first of several enabling technologies that led to the development of television.
Video servers: Serving from a daunting menu
By JOHN LUFF published
Since the invention of the hard disk there have been predictions that linear media, including video tape, will eventually disappear. Not even a decade
Wireless microphones
By JOHN LUFF published
Just when everything is going well in a production, the audio operator often becomes the center of unwanted attention. One moment the singer on stage
Portable lighting
By JOHN LUFF published
Television engineers tend to think of the world as entirely digital these days. CCDs for image acquisition (digital capture), digital video recorders,
Camera mounting equipment: In a supporting role
By JOHN LUFF published
The broadcast engineer of today spends his time worrying about software, video servers, DTV and the continual upgrade of the facilities he manages. His
Virtual sets: Imagining we were there
By JOHN LUFF published
Controlling reality is always expensive, and creating illusions is sometimes nearly as expensive. Entire motion pictures are being created in computers,
MPEG coding systems
By JOHN LUFF published
MPEG unleashed an industry that has improved the quality and reduced the cost of transmission, and has become the basis of the digital terrestrial television system worldwide.
Technology in Transition: Data archive systems
By JOHN LUFF published
In the second installment of four related to automation and asset management, this month we consider data archive systems.
CENTRALCASTING: No Benefit Without Risk
By JOHN LUFF published
Broadcast stations used to be largely autonomous. Some still are.
HDTV equipment
By JOHN LUFF published
A decade ago, would any of us have guessed that today we would see a rapidly expanding market for HDTV programming and a demand for HDTV hardware? Perhaps
HD conversion products: The big picture on small pixels
By JOHN LUFF published
The picture is not improved by upconverting a 525 signal to HDTV for DTV transmission. For many years consultants, equipment designers, production professionals
Studio lighting systems
By JOHN LUFF published
My fascination with science, and physics in particular, made playing with light even more interesting.
Routing switchers: POTS, routers and switches
By JOHN LUFF published
As the number of inputs and outputs grows the total count of crosspoints grows. Though complexity is high with virtual crosspoints, the relative cost
Streaming media products: Moving from software to hardware
By JOHN LUFF published
It is clear from the compression ratios that must be achieved that every opportunity to make the job easier ought to be taken. In the early 1970s I remember
TV sync and timing
By JOHN LUFF published
Today’s sync system is nearly the same as it was 72 years ago when television was in its infancy.
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